CN201936187U - Auxiliary device and testing device for anti-interference test on field bus product - Google Patents
Auxiliary device and testing device for anti-interference test on field bus product Download PDFInfo
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- CN201936187U CN201936187U CN2010206685194U CN201020668519U CN201936187U CN 201936187 U CN201936187 U CN 201936187U CN 2010206685194 U CN2010206685194 U CN 2010206685194U CN 201020668519 U CN201020668519 U CN 201020668519U CN 201936187 U CN201936187 U CN 201936187U
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Abstract
The utility model provides an auxiliary device for an anti-interference test on a field bus product, which comprises a power module, a message receiving module, a control module, a display module and a message sending module, wherein the power module is used for respectively supplying power for the control module, the display module, the message receiving module and the message sending module; the message receiving module is used for prestoring a message before the test is carried out; the control module is used for reading and storing the message prestored in the message receiving module; the message is sent to the display module for displaying, and the message is sent to a unit under test through the message sending module under the control of a test command. The auxiliary device takes corresponding fictitious load action to make the unit under test work in a normal state to complete a specific action, and simultaneously, the auxiliary device is capable of effectively monitoring a working condition of the unit under test; moreover, due to the fact that the message written in a computer is stored by the message receiving module of the auxiliary device before the test is carried out, the jamming of the computer on the test is eliminated, and thereby, the interference of equipment is improved.
Description
Technical field
The utility model belongs to anti-interference proving installation, is specifically related to a kind of servicing unit and proving installation thereof that is used for the anti-interference test of fieldbus product.
Background technology
Explanation according to IEC, fieldbus be meant be installed in make or the field device of process area and the aut.eq. in the pulpit between digital, serial, the data bus of multi-point, say that simply fieldbus is exactly the transmission that has substituted traditional 4-20mA simulating signal and regular tap amount signal with digital communication.
At present, the application of fieldbus product (be meant the product that is used for field bus communication, also can abbreviate measured piece as) is very extensive, for example on the automobile, a lot of main all built-in Fieldbus Control modules of vehicle-mounted product, the signal between the vehicle-mounted product transmits by fieldbus.Wherein, whether some vehicle-mounted product operate as normal directly has influence on traffic safety, as: control unit of engine, transmission control unit, brake control module, suspension control module, ABS control module, fault judgement unit, and light class, motorized window, door lock, electrically propelled chair, remote control gate lock, Related products such as electronic instrument, driving information, automatic air condition.
Yet because the residing working environment more complicated of fieldbus product, for example may be subjected to the interference etc. of the electromagnetic signal of vehicle interior and space outerpace.Therefore, the very strong antijamming capability of signal demand that fieldbus transmits, otherwise message makes mistakes and misoperation may occur, even jeopardize traffic safety.Therefore need carry out anti-interference test to the fieldbus product, other electronics in the simulation car, electric equipment products are to the interference of measured piece (being meant the abbreviation of fieldbus product).
At present, general computing machine and the field-bus interface card of adopting realized fictitious load, shown in accompanying drawing 1, computing machine 22 is by field-bus interface card 21, send message to measured piece 3, control measured piece 3 is finished corresponding action, simultaneously, between measured piece 3 and field-bus interface card 21, undesired signal analogue means 1 is applied to undesired signal on the fieldbus 19, finish anti-interference test, thereby pass through to compare the interference free performance of the incoming message of computing machine 22 and the corresponding actions test measured piece 3 that measured piece 3 produces the fieldbus product.The part but such scheme comes with some shortcomings: at first, the effect of fictitious load is to make measured piece 3 be in normal condition, as: make measured piece 3 realize compulsory exercise, monitor the duty of measured piece 3 simultaneously.But above computing machine 22 and field-bus interface card 21 come fictitious load, owing to be general, can not provide corresponding load at different measured piece 3, so can not well simulate measured piece 3 actual conditions onboard.Secondly, introduce computing machine in the fictitious load, also can bring new interference, and because of restrictions such as test site shielding, isolation, computer equipment is not suitable for being placed on the darkroom, add carrying inconvenience, increase extra manpower and material resources consumption can for test.
The utility model content
The utility model is for solving the existing anti-interference proving installation of fieldbus product, bring the technical matters of interference owing to introducing computing machine in the fictitious load, provide a kind of computing machine of avoiding to disturb, and the servicing unit of the anti-interference test of fieldbus product of simulating actual conditions well.
For solving the problems of the technologies described above, the utility model provides a kind of servicing unit that is used for the anti-interference test of fieldbus product, comprise power module, message receiver module, control module, display module and message sending module, wherein said power module is respectively control module, display module, message receiver module and the power supply of message sending module; Described message receiver module is pre-stored messages before test; Described control module read and the stored messages receiver module in the message that prestores, this message is sent to display module shows, and under the control of test instruction, send this message to measured piece by the message sending module.
Further, described power module comprises power supply, first level conversion unit, second level conversion unit, the 3rd level conversion unit and the 4th level conversion unit,
Described power supply links to each other with control module by first level conversion unit;
Described power supply links to each other with the message receiver module by second level conversion unit;
Described power supply links to each other with display module by the 3rd level conversion unit;
Described power supply links to each other with the message sending module by the 4th level conversion unit.
Further, described power module comprises first rechargeable battery, second rechargeable battery, the 3rd rechargeable battery and the 4th rechargeable battery,
Described first rechargeable battery links to each other with control module;
Described second rechargeable battery links to each other with the message receiver module;
Described the 3rd rechargeable battery links to each other with display module;
Described the 4th rechargeable battery links to each other with the message sending module.
Further, described control module is a single-chip microcomputer.
The utility model also provides a kind of anti-interference proving installation of fieldbus product that is used for, comprise fieldbus, and the undesired signal analogue means that is used for applying undesired signal to fieldbus, wherein, also comprise the above-mentioned servicing unit that is used for the anti-interference test of fieldbus product, the described message sending module that is used for the servicing unit of the anti-interference test of fieldbus product links to each other with measured piece by fieldbus.
Further, be covered with a metal shell on the described servicing unit that is used for the anti-interference test of fieldbus product.
Further, described fieldbus is CAN bus, LonWorks bus or WorldFIP bus.
From the servicing unit technical scheme that is used for the anti-interference test of fieldbus product of the present utility model as can be seen, this servicing unit is by comprising power module, message receiver module, control module, display module and message sending module, and wherein said power module is respectively control module, display module, message receiver module and the power supply of message sending module; Described message receiver module is pre-stored messages before test; Described control module read and the stored messages receiver module in the message that prestores, this message is sent to display module shows, and under the control of test instruction, send this message to measured piece by the message sending module.Avoided prior art owing to adopt computing machine and field-bus interface card to realize some problems that fictitious load brings, on the one hand, because the field-bus interface card is general, can not provide corresponding load at different measured pieces, so can not well simulate measured piece actual conditions onboard.On the other hand, introduce computing machine in the fictitious load, also can bring new interference, and because of restrictions such as test site shielding, isolation, computer equipment is not suitable for being placed on the darkroom, add carrying inconvenience, increase extra manpower and material resources consumption can for test.Therefore, the servicing unit that is used for the anti-interference test of fieldbus product of the present utility model not only provides the corresponding simulating load, make measured piece be operated in normal condition, finish compulsory exercise, can effectively monitor the duty of measured piece simultaneously, and, because, message receiver module of the present utility model had been stored the message that computing machine writes before test, then get rid of the interference of computing machine to test, thereby had improved the vulnerability to jamming of equipment.
Description of drawings
The structured flowchart that is used for the anti-interference proving installation of fieldbus product that Fig. 1 provides for prior art.
Servicing unit embodiment one structured flowchart that is used for the anti-interference test of fieldbus product that Fig. 2 provides for the utility model.
Servicing unit embodiment two structured flowcharts that are used for the anti-interference test of fieldbus product that Fig. 3 provides for the utility model.
Fig. 4 is used for the example structure block diagram that the anti-interference proving installation of fieldbus product provides for the utility model.
Embodiment
Clearer for technical matters, technical scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Available technology adopting computing machine and field-bus interface card are realized fictitious load, on the one hand, because the field-bus interface card is general, can not provide corresponding load at different measured pieces, so can not well simulate measured piece actual conditions onboard.On the other hand, introduce computing machine in the fictitious load, also can bring new interference, and because of restrictions such as test site shielding, isolation, computer equipment is not suitable for being placed on the darkroom, add carrying inconvenience, increase extra manpower and material resources consumption can for test.In order to solve the above-mentioned technical matters that prior art exists, the utility model provides a kind of servicing unit that is used for the anti-interference test of fieldbus product, this device has substituted existing computing machine and the field-bus interface card is realized fictitious load, this device is because it forms module (power module for example, control module, display module, message receiver module and message sending module) in electronic circuit played corresponding simulating load effect, make measured piece be operated in normal condition, finish compulsory exercise, can effectively monitor simultaneously the duty of measured piece, in addition, because, message receiver module of the present utility model had been stored the message that computing machine writes before test, then get rid of the interference of computing machine, thereby improved the vulnerability to jamming of equipment test.
In order to enable those skilled in the art to understand better, realize the utility model, the utility model is elaborated below by specific embodiment.
Embodiment one
Servicing unit embodiment one structured flowchart that is used for the anti-interference test of fieldbus product that Fig. 2 provides for the utility model, as shown in Figure 2, the servicing unit that is used for the anti-interference test of fieldbus product comprises power module 5, message receiver module 8, control module 7, display module 6 and message sending module 9, and wherein said power module 5 is respectively control module 7, display module 6, message receiver module 8 and 9 power supplies of message sending module; Described message receiver module 8 is pre-stored messages before test; Described control module 7 reads and stored messages are accepted the message that prestores in the module 8, this message is sent to display module 6 show, and send these messages by message sending module 9 to measured piece 3 under the control of test instruction.
In specific embodiment, described control module 7 can be selected single-chip microcomputer for use.
In concrete enforcement, described message is accepted module 8 can be by being connected with computing machine before test, and purpose is pre-stored messages.
In concrete enforcement, described control module is connected with input interface, and this input interface is used for input test instruction (see figure 2), and this test instruction can artificially import or setting program is imported automatically.
Embodiment two
Servicing unit embodiment two structured flowcharts that are used for the anti-interference test of fieldbus product that Fig. 3 provides for the utility model, as shown in Figure 3, the servicing unit that is used for the anti-interference test of fieldbus product comprises power supply 10, first level conversion unit 11, second level conversion unit 12, the 3rd level conversion unit 13, the 4th level conversion unit 14, control module 7, display module 6, message receiver module 8 and message sending module 9, described power supply 10 is control module 7 power supplies by first level conversion unit 11, described power supply 10 is 8 power supplies of message receiver module by second level conversion unit 12, described power supply 10 is display module 6 power supplies by the 3rd level conversion unit 13, described power supply 10 is 9 power supplies of message sending module by the 4th level conversion unit 14, and described message receiver module 8 is pre-stored messages before test; Described control module 7 reads and stored messages are accepted the message that prestores in the module 8, this message is sent to display module 6 show, and send these messages by message sending module 9 to measured piece 3 under the control of test instruction.
As from the foregoing, embodiment two compares with embodiment one, most contents is identical, difference is, embodiment one adopts power module 5 to be respectively control module 7, display module 6, message receiver module 8 and 9 power supplies of message sending module, and embodiment two is linked to each other with control module 7 by first level conversion unit 11 by power supply 10, link to each other with message receiver module 8 by second level conversion unit 12 by power supply 10, link to each other with display module 6 by the 3rd level conversion unit 13 by power supply 10, and link to each other with message sending module 9 by the 4th level conversion unit 14 by power supply 10, can satisfy control module 7 respectively, display module 6, the supply voltage requirement of message receiver module 8 and message sending module 9.
Further preferred version as the expansion embodiment of embodiment one and embodiment one, described power module 5 comprises first rechargeable battery 15, second rechargeable battery 16, the 3rd rechargeable battery 17 and the 4th rechargeable battery 18, and described first rechargeable battery 15 links to each other with control module 7, described second rechargeable battery 16 links to each other with message receiver module 8, described the 3rd rechargeable battery 17 links to each other with display module 6, and described the 4th rechargeable battery 18 links to each other with message sending module 9.This embodiment not only can play the effect of embodiment two, promptly satisfy control module 7 respectively, display module 6, the supply voltage requirement of message receiver module 8 and message sending module 9, in addition, among the embodiment two owing to adopted a plurality of level conversion units, its converting unit may produce extra undesired signal at work, thereby the servicing unit that is used for the anti-interference test of fieldbus product to the utility model brings undesired signal, and this embodiment replaces the level conversion unit of embodiment two by adopting the stable rechargeable battery of voltage, the undesired signal of having avoided level conversion unit to bring, thus the accuracy of testing guaranteed.
Fig. 4 is used for the anti-interference proving installation structured flowchart of fieldbus product for what the utility model provided, as shown in Figure 4, this proving installation comprises fieldbus 19, and be used to apply the undesired signal analogue means 1 that undesired signal is given fieldbus 19, wherein, also comprise the servicing unit 4 that is used for the anti-interference test of fieldbus product, this servicing unit 4 comprises power module 5, message receiver module 8, control module 7, display module 6 and message sending module 9, wherein said power module 5 is respectively control module 7, display module 6, message receiver module 8 and 9 power supplies of message sending module; Described message receiver module 8 is pre-stored messages before test; Described control module 7 reads and stored messages are accepted the message that prestores in the module 8, this message is sent to display module 6 show, and send these messages by message sending module 9 to measured piece 3 under the control of test instruction.
Above-mentioned message receiver module 8 is mainly finished the receiving function of computing machine antagonism disturbed test servicing unit write signal, be the message signals that computing machine sends passage is provided, because the signal that computing machine sends is different with the level of control module work, need message receiver module 8 that the serial ports transmission level is provided, simultaneously, the signal that computing machine is sent transfers to control module 7 through the TTL/CMOS conversion and handles, and specific implementation can be got final product by chip piece and respective peripheral circuit.This module 8 is connected computing machine by lead with the servicing unit 4 that is used for the anti-interference test of fieldbus product.Before anti-interference test, can be connected to computing machine, disposable the servicing unit 4 that is used for the anti-interference test of fieldbus product is write all message informations that test is used, need not connect computing machine in the test, thereby effectively suppressed the harassing and wrecking of computing machine test.
Above-mentioned message sending module 9 is used for message is sent to measured piece 3, makes measured piece 3 finish compulsory exercise according to instruction, and its function of mainly finishing is to handle and send message.This module 9 receives the message signals of sending from control module 7, by isolating and suppress circuit noise, message is transmitted with the fieldbus 19 that is used for the servicing unit 4 of the anti-interference test of fieldbus product via connecting measured piece 3.
Above-mentioned display module 6 is mainly finished the signal that computing machine is write anti-interference testing auxiliary device and is carried out respective handling.Limited because of the port load capacity of control module 7, after this module 6 provides driving for the output of control module 7, could on liquid crystal display, demonstrate corresponding information, as title, data etc., convenient identification message information and test before and after the contrast of state variation.
The course of work that the utility model is used for the anti-interference proving installation of fieldbus product is as follows:
During test, described control module 7 reads by message receiver module 8, stored messages, this message is sent to display module 6 to be shown, and judge whether send these messages to measured piece 3 by message sending module 9 in the test instruction of input interface I, 3 of measured pieces produce corresponding actions, simultaneously, undesired signal analogue means 1 is applied to undesired signal on the fieldbus 19, fieldbus 19 is produced interference, because the message that measured piece 3 receives is if be interfered, then measured piece 3 moves not according to the requirement of setting, perhaps message is made mistakes and is not responded the instruction of this message, therefore, whether the experimenter can contrast the incoming message instruction of display module 6 demonstrations and the work that measured piece 3 is made, conform to the incoming message instruction that display module 6 shows by judging the work that measured piece 3 is made, thereby judge applying owing to undesired signal, whether allow measured piece 3 produce misoperation, thereby effectively monitor the test situation of measured piece 3 and the anti-interference situation of checking fieldbus product.
As shown in Figure 4, the servicing unit 4 that is used for the anti-interference test of fieldbus product among this embodiment is selected the servicing unit that is used for the anti-interference test of fieldbus product of embodiment one for use, this is a kind of scheme, and the utility model is used for the servicing unit that is used for the anti-interference test of fieldbus product of the above-mentioned arbitrary embodiment of the also optional usefulness of the anti-interference proving installation of fieldbus product (the expansion embodiment that comprises embodiment two, embodiment one and embodiment two).
Further preferred version as the foregoing description, be covered with a metal shell on the described servicing unit that is used for the anti-interference test of fieldbus product, purpose is that this servicing unit has been played shielding action well, can prevent the interference of external radiation, also prevent that the harassing and wrecking of the inner generation of servicing unit from disturbing other electronic products simultaneously servicing unit.
In specific embodiment, described fieldbus can be CAN bus, LonWorks bus or WorldFIP bus etc.Wherein CAN is that (Controller Area Network, abbreviation CAN) is by research and development and the German BOSCH company exploitation of producing that automobile electronics are celebrated, and finally becomes international standard (ISO 11898) in controller local area network.CAN is one of most widely used fieldbus in the world, and its traffic rate can reach 1Mbps.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (7)
1. a servicing unit that is used for the anti-interference test of fieldbus product is characterized in that, comprises power module, message receiver module, control module, display module and message sending module, wherein
Described power module is respectively control module, display module, message receiver module and the power supply of message sending module;
Described message receiver module, pre-stored messages before test;
Described control module, read and the stored messages receiver module in the message that prestores, this message is sent to display module shows, and under the control of test instruction, send this message to measured piece by the message sending module.
2. the servicing unit that is used for the anti-interference test of fieldbus product according to claim 1, it is characterized in that, described power module comprises power supply, first level conversion unit, second level conversion unit, the 3rd level conversion unit and the 4th level conversion unit
Described power supply links to each other with control module by first level conversion unit;
Described power supply links to each other with the message receiver module by second level conversion unit;
Described power supply links to each other with display module by the 3rd level conversion unit;
Described power supply links to each other with the message sending module by the 4th level conversion unit.
3. the servicing unit that is used for the anti-interference test of fieldbus product according to claim 1 is characterized in that, described power module comprises first rechargeable battery, second rechargeable battery, the 3rd rechargeable battery and the 4th rechargeable battery,
Described first rechargeable battery links to each other with control module;
Described second rechargeable battery links to each other with the message receiver module;
Described the 3rd rechargeable battery links to each other with display module;
Described the 4th rechargeable battery links to each other with the message sending module.
4. according to claim 1, the 2 or 3 described servicing units that are used for the anti-interference test of fieldbus product, it is characterized in that described control module is a single-chip microcomputer.
5. one kind is used for the anti-interference proving installation of fieldbus product, comprise fieldbus, and the undesired signal analogue means that is used for applying undesired signal to fieldbus, it is characterized in that, also comprise aforesaid right requirement 1 to 4 each described servicing unit that is used for the anti-interference test of fieldbus product, the described message sending module that is used for the servicing unit of the anti-interference test of fieldbus product links to each other with measured piece by fieldbus.
6. the anti-interference proving installation of fieldbus product that is used for according to claim 5 is characterized in that, is covered with a metal shell on the described servicing unit that is used for the anti-interference test of fieldbus product.
7. according to claim 5 or the 6 described anti-interference proving installations of fieldbus product that are used for, it is characterized in that described fieldbus is CAN bus, LonWorks bus or WorldFIP bus.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206685194U CN201936187U (en) | 2010-12-20 | 2010-12-20 | Auxiliary device and testing device for anti-interference test on field bus product |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010206685194U CN201936187U (en) | 2010-12-20 | 2010-12-20 | Auxiliary device and testing device for anti-interference test on field bus product |
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| CN201936187U true CN201936187U (en) | 2011-08-17 |
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| CN2010206685194U Expired - Lifetime CN201936187U (en) | 2010-12-20 | 2010-12-20 | Auxiliary device and testing device for anti-interference test on field bus product |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103095384A (en) * | 2012-12-25 | 2013-05-08 | 北京铁路信号有限公司 | Closed loop test method and system of ground-electronic-unit lineside electronic unit (LEU) |
| CN104216393A (en) * | 2013-10-14 | 2014-12-17 | 郑州宇通客车股份有限公司 | ISO (international standards organization) 7637-based method for detecting transient conducting anti-interference performance of electronic control modules |
| CN113676342A (en) * | 2021-07-07 | 2021-11-19 | 中国电力科学研究院有限公司 | Method and system for simulating M-BUS BUS environment and testing adaptability |
-
2010
- 2010-12-20 CN CN2010206685194U patent/CN201936187U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103095384A (en) * | 2012-12-25 | 2013-05-08 | 北京铁路信号有限公司 | Closed loop test method and system of ground-electronic-unit lineside electronic unit (LEU) |
| CN104216393A (en) * | 2013-10-14 | 2014-12-17 | 郑州宇通客车股份有限公司 | ISO (international standards organization) 7637-based method for detecting transient conducting anti-interference performance of electronic control modules |
| CN104216393B (en) * | 2013-10-14 | 2017-07-28 | 郑州宇通客车股份有限公司 | Electronic control module transient state conduction interference free performance detection method based on IS07637 |
| CN113676342A (en) * | 2021-07-07 | 2021-11-19 | 中国电力科学研究院有限公司 | Method and system for simulating M-BUS BUS environment and testing adaptability |
| CN113676342B (en) * | 2021-07-07 | 2024-02-27 | 中国电力科学研究院有限公司 | M-BUS BUS environment simulation and adaptability test method and system |
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Granted publication date: 20110817 |