CN208270222U - A kind of RTU starting fatigue experimental device - Google Patents
A kind of RTU starting fatigue experimental device Download PDFInfo
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- CN208270222U CN208270222U CN201820801195.3U CN201820801195U CN208270222U CN 208270222 U CN208270222 U CN 208270222U CN 201820801195 U CN201820801195 U CN 201820801195U CN 208270222 U CN208270222 U CN 208270222U
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Abstract
The utility model discloses a kind of RTU starting fatigue experimental device.Described device includes: tested RTU, controls the electronic switch of tested RTU on/off, controller.The one-bit digital amount output port DO of tested RTU is connected with the one-bit digital amount input port DI of controller, and the one-bit digital amount output port DO of controller is connected with the control terminal of electronic switch.The utility model devises RTU starting fatigue experimental device for the first time, can be automatically performed RTU starting fatigue test using described device.Compared with traditional fatigue test, test period is substantially reduced, convenient for quickly understanding the starting performance of product.The test data of acquisition can provide strong support for the research of RTU life cycle.
Description
Technical field
The utility model belongs to RTU (Remote Terminal Unit, remote-terminal unit) technical field, and in particular to
A kind of RTU starting fatigue experimental device.
Background technique
RTU is mainly used for the monitoring and control to on-site signal, industrial equipment.RTU is to constitute Enterprise Integrated Automation system
The core apparatus of system is usually made of signal input/output module, microprocessor, wire/wireless communication module and power supply etc..
RTU can realize enterprise central monitoring with scheduling system to the telemetering of production scene primary instrument, remote control, remote signalling and remote regulating well
Etc. functions.
Very big starting current is generated when RTU starts, and can reach 5~10 times or more of running current sometimes.Therefore,
RTU starting is very big to the service life of RTU or life cycle environmental impact, and there is a degree of detraction in every its primary service life of starting.Practice
Show to influence the number of starts that the most important factor of RTU normal service life is RTU.It is 10 for a normal service life
The RTU in or so year, by the primary calculating of starting daily, a RTU can be successfully started up continuously 3650 times or so.When RTU is successfully opened
Often there is the phenomenon that starting fails more than half failure state after certain numerical value, is just in dynamic number；The number of starts is further added by one
After fixed number amount, RTU cannot will normally start completely in full failure or distress condition.Therefore, can with RTU maximum continuously at
The function number of starts, and successfully start up number account for the number of starts ratio start success rate etc. indicate RTU service life length or
Performance superiority and inferiority.
The service life of electronic device is generally obtained by fatigue test.The utility model designs a kind of for RTU fatigue test
Device, unlike common fatigue test, the utility model detects its starting performance by starting tested RTU repeatedly
Superiority and inferiority, therefore also known as this fatigue test is that RTU starts fatigue test.
Utility model content
In order to solve the above-mentioned problems in the prior art, the utility model proposes a kind of RTU starting fatigue test dresses
It sets, using described device by repeating starting test to tested RTU, is able to detect the superiority and inferiority of RTU starting performance.
To achieve the above objectives, the present invention adopts the following technical solutions:
A kind of RTU starting fatigue experimental device, comprising: tested RTU controls the electronic switch of tested RTU on/off, control
Device processed.The one-bit digital amount output port DO of tested RTU is connected with the one-bit digital amount input port DI of controller, controller
One-bit digital amount output port DO is connected with the control terminal of electronic switch.
Further, described device further includes the host computer communicated by network with controller.
Further, the DO0 of the tested RTU is connected with the DI0 of controller, the control of the DO0 and electronic switch of controller
End processed is connected.
Further, the controller is a RTU.
Further, the electronic switch is relay.
Compared with prior art, the utility model has the following beneficial effects:
The utility model is tested by tested RTU is arranged, controls tested RTU on/off electronic switch and controller
The one-bit digital amount output port DO of RTU is connected with the one-bit digital amount input port DI of controller, the one-bit digital of controller
Amount output port DO is connected with the control terminal of electronic switch, can be automatically performed RTU starting fatigue test.The utility model is for the first time
RTU starting fatigue experimental device is devised, RTU starting fatigue test can be automatically performed using described device.With it is traditional tired
Labor test is compared, and test period is substantially reduced, convenient for quickly understanding the starting performance of product.The test data of acquisition can be
The research of RTU life cycle provides strong support.
Detailed description of the invention
Fig. 1 is the composition block diagram that a kind of RTU of the utility model embodiment starts fatigue experimental device.
In figure: 1- controller, 2- are tested RTU, 3- electronic switch, 4- host computer.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
A kind of composition block diagram of RTU starting fatigue experimental device of the utility model embodiment is as shown in Figure 1, described device packet
Include: tested RTU2 controls the electronic switch 3 of tested RTU2 on/off, controller 1.The one-bit digital amount output of tested RTU2
Port DO is connected with the one-bit digital amount input port DI of controller 1, the one-bit digital amount output port DO and electronics of controller 1
The control terminal of switch 3 is connected.
In the present embodiment, described device is mainly made of tested RTU2, electronic switch 3 and controller 1.Controller 1 is
The control of described device and data processing centre are generally made of microprocessor and data storage etc..The one digit number of controller 1
Word amount input port DI is connected with the one-bit digital amount output port DO of tested RTU2, for acquiring a DO of tested RTU2
Output signal.When RTU normally starts, its any one DO can export stable high level signal.Principle accordingly, controller
1 may determine that whether the starting of tested RTU2 succeeds according to signal waveform collected.RTU starts fatigue test and needs repeatedly weight
It is multiple to start tested RTU2, for this purpose, a DO of controller 1 is connected with the control terminal of electronic switch 3.The electronic switch 3 is gone here and there
It is associated in the current supply circuit of tested RTU2, controller 1 controls the on-off of electronic switch 3, i.e. control quilt by output low and high level
The on-off of RTU2 power supply is surveyed, to realize the starting repeatedly and closing of tested RTU2.Electronic switch 3 can be selected high-power
Pipe, can also select relay.
When carrying out RTU starting fatigue test using described device, controller 1 is needed to execute following steps:
S101 outputs control signals to 3 control terminal of electronic switch, and electronic switch 3 is connected；
S102, acquires the output signal of a DO of tested RTU2 in real time, and judges whether starting succeeds；
S103 outputs control signals to 3 control terminal of electronic switch, disconnects electronic switch 3；
S104, judges whether the number of starts reaches setting number, if not reaching setting number, after postponing a period of time
Turn S101；If reaching setting number, off-test.
In the present embodiment, RTU starting fatigue test can be automatically performed using described device.Due to a subnormal starting
The time needed is very short, and general only 1 minute or so, and also the interval between starting can be with very little, it is estimated that completing one twice
Secondary RTU starting fatigue test time-consuming five and half or so, compared with traditional fatigue test (time-consuming several months), substantially reduces test
Time.
As a kind of alternative embodiment, described device further includes the host computer 4 communicated by network with controller 1.
In the present embodiment, for the ease of in remote monitoring center monitoring test situation, being provided through network and control
The host computer 4 positioned at remote monitoring center that device 1 communicates.Host computer 4 uses MODBUS/TCP protocol access controller 1, obtains
Test result data.
As a kind of alternative embodiment, the DO0 of the tested RTU is connected with the DI0 of controller, the DO0 and electricity of controller
The control terminal of sub switch is connected.
This gives a kind of connection types more specific between tested RTU2, controller 1 and electronic switch 3: quilt
The DO0 for surveying RTU2 is connected with the DI0 of controller 1, and the DO0 of controller 1 is connected with the control terminal of electronic switch 3.
As a kind of alternative embodiment, the controller 1 is a RTU.
In the present embodiment, in order to exempt the trouble for designing controller 1, using existing RTU as controller 1, even
The RTU identical with tested RTU2 of function admirable can be used.
As a kind of alternative embodiment, the electronic switch 3 is relay.
This gives a kind of concrete schemes of electronic switch 3, i.e., using relay as electronic switch 3.Relay
The control terminal of device is any end of its control winding, and a DO of controller 1 is connected with one end of relay control winding, when
Control winding is powered on when the DO is high level, and relay contact is attracted.When selective relay, centainly it is noted that its rated current
To be significantly greater than the starting current of tested RTU2.
It is above-mentioned that only several specific embodiments in the utility model are illustrated, but can not be as the utility model
Protection scope, the equivalent change or modification or equal proportion amplification or contracting that all design spirits according in the utility model are made
It is small etc., it is deemed to fall the protection scope of the utility model.
Claims (5)
1. a kind of RTU starts fatigue experimental device characterized by comprising the electronic switch of tested RTU on/off is controlled,
Controller；The one-bit digital amount output port DO of tested RTU is connected with the one-bit digital amount input port DI of controller, controller
One-bit digital amount output port DO be connected with the control terminal of electronic switch.
2. RTU according to claim 1 starts fatigue experimental device, which is characterized in that described device further includes passing through net
The host computer that network is communicated with controller.
3. RTU according to claim 1 starts fatigue experimental device, which is characterized in that the DO0 of the tested RTU and control
The DI0 of device processed is connected, and the DO0 of controller is connected with the control terminal of electronic switch.
4. RTU according to claim 1 starts fatigue experimental device, which is characterized in that the controller is a RTU.
5. RTU described in any one tribute starts fatigue experimental device according to claim 1~4, which is characterized in that the electronic cutting
Closing is relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820801195.3U CN208270222U (en) | 2018-05-28 | 2018-05-28 | A kind of RTU starting fatigue experimental device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820801195.3U CN208270222U (en) | 2018-05-28 | 2018-05-28 | A kind of RTU starting fatigue experimental device |
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| Publication Number | Publication Date |
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| CN208270222U true CN208270222U (en) | 2018-12-21 |
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| CN201820801195.3U Active CN208270222U (en) | 2018-05-28 | 2018-05-28 | A kind of RTU starting fatigue experimental device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982137A (en) * | 2018-05-28 | 2018-12-11 | 北京安控科技股份有限公司 | A kind of RTU starting fatigue experimental device and method |
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2018
- 2018-05-28 CN CN201820801195.3U patent/CN208270222U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982137A (en) * | 2018-05-28 | 2018-12-11 | 北京安控科技股份有限公司 | A kind of RTU starting fatigue experimental device and method |
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Effective date of registration: 20200511 Address after: 101-10, floor 4, building 5, yard 9, Dijin Road, Haidian District, Beijing 100000 Patentee after: BEIJING ETROL OIL AND GAS TECHNOLOGY Co.,Ltd. Address before: 100095 Beijing city Haidian District P.Tricuspidata Road No. 9 Building No. 6 hospital Patentee before: BEIJING ECHO TECHNOLOGIES Co.,Ltd. |