CN203720346U - Test system of distance test equipment - Google Patents
Test system of distance test equipment Download PDFInfo
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- CN203720346U CN203720346U CN201420013437.4U CN201420013437U CN203720346U CN 203720346 U CN203720346 U CN 203720346U CN 201420013437 U CN201420013437 U CN 201420013437U CN 203720346 U CN203720346 U CN 203720346U
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- 238000012360 testing method Methods 0.000 title claims abstract description 99
- 238000004891 communication Methods 0.000 claims abstract description 14
- 239000013589 supplement Substances 0.000 claims description 13
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- 239000002184 metal Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 230000005284 excitation Effects 0.000 abstract description 2
- 238000012986 modification Methods 0.000 abstract description 2
- 230000004048 modification Effects 0.000 abstract description 2
- 230000003044 adaptive effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
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- 238000005516 engineering process Methods 0.000 description 2
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- 230000003068 static effect Effects 0.000 description 2
- 241001515094 Inquisitor Species 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011981 development test Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The utility model discloses a test system of distance test equipment. The test system includes a navigation radio frequency signal source which is configured to be in communication connection with the distance test equipment and used for providing excitation signals for the distance test equipment, a discrete signal interface unit which is configured to be in communication connection with the distance test equipment and used for forwarding or processing signals received by the discrete signal interface unit, a control unit which is configured to be in communication connection with the discrete signal interface unit and used for receiving the signals from the discrete signal interface unit and transmitting control signals to the distance test equipment through the discrete signal interface unit, and a universal test unit which is configured to be in communication connection with the discrete signal interface unit and used for receiving and analyzing the signals from the discrete signal interface unit. The structure of the test bench of the test system is simple, and therefore, modification can be performed based on the test bench, such that the test system can be adaptive to test work of ranging equipment in new models.
Description
Technical field
The utility model relates to avionics testing apparatus field, especially a kind of system of testing of the testing apparatus of can adjusting the distance.
Background technology
Distance test equipment (Distance Measuring Equipment, DME) be one of the short-range navigation system of International Civil Aviation Organization approval, it is comprised of airborne interrogator (airborne DME inquisitor) and ground transponder (DME antenna and ground DME platform).The transmitting of DME by ranging pulse signal and accept the time difference and obtain aircraft to the oblique distance of earth station.When the flying height of aircraft is during much smaller than oblique distance to platform, the oblique distance that DME can be recorded is regarded aircraft as to the flat distance of earth station.
DME equipment is the important component part of aircraft, and the flight safety of aircraft is had to critical impact.Degree of taking place frequently in view of avionics system fault, and the consideration of maintenance cost, according to an international practice, development test machine fault statistics, and equipment is in the importance of aircraft system, avionics system finished parts needs to detect by Aerial Electronic Equipment proving installation before packing aircraft into.Therefore research and develop Aerial Electronic Equipment test macro and be very important, need to design such Aerial Electronic Equipment test board.
The test board of external DME equipment (such as the DME-4000 of Collins company series) is mainly based on PXI/VXI modular testing, but this kind of test board development cost is high, and due to structure and program complexity, be difficult to it to transform to adapt to current technology of constantly bringing forth new ideas, even in test process, also have the shortcomings such as test underaction.
Utility model content
Based on above consideration, if propose a kind of, can, to DME equipment standard, the system of testing reliably, will be very favorable.
According to one side of the present utility model, a kind of test macro of distance test equipment has been proposed, comprising: navigation radio-frequency signal source, is configured to be connected with described distance test devices communicating, for providing pumping signal to described distance test equipment; Discrete signal interface unit, is configured to be connected with described distance test devices communicating, for forwarding or process its received signal; Control module, is configured to and described discrete signal interface unit communication connection, for receiving the signal from described discrete signal interface unit, and control signal is sent to described distance test equipment by described discrete signal interface unit; Universal test unit, is configured to and described discrete signal interface unit communication connection, for receiving and analyze the signal from described discrete signal interface unit.
According to an embodiment of the present utility model, described test macro also comprises the supplementary discrete signal interface unit being connected with described distance test devices communicating by discrete signal interface unit.
According to an embodiment of the present utility model, described supplementary discrete signal interface unit is configured to supplement discrete signal to described distance test equipment input, and draws output signal corresponding to described supplementary discrete signal measured for described universal test unit.
According to an embodiment of the present utility model, described distance test equipment is DME-4000 type stadimeter.
According to an embodiment of the present utility model, described control module is for controlling display, and it communicates to connect by described supplementary discrete signal interface unit and described discrete signal interface unit.
According to an embodiment of the present utility model, described test macro also comprises the connector with metal coating shell, and described connector has the pin interface of inserting for described distance test equipment.
The utility model is by selecting suitable equipment simulating and the function of DME-4000 cross-linking apparatus, to DME-4000, provide normal work required various pumping signals, under real duty, by corresponding control command and input signal are set, use corresponding instrument test DME-4000 various performance parameters, complete DME-4000 test.
The utility model is by the imitation of the testing apparatus of adjusting the distance (such as DME-4000) working environment aboard, thereby can carry out full test to it.The universal standard testing apparatus configuring in the design is all the equipment extensively adopting in the world, and this test board development cost is relatively low, simple in structure, easily change on this basis the test job that just can adapt to new model distance test equipment, realized higher versatility.
Various aspects of the present utility model are by the explanation of the specific embodiment by hereinafter and more clear.
Accompanying drawing explanation
By reading the following detailed description to non-limiting example with reference to accompanying drawing, it is more obvious that other features, objects and advantages of the present utility model will become.
Fig. 1 is the system architecture schematic diagram according to the test board of the utility model embodiment;
Fig. 2 is the supplementary interface unit panel schematic diagram of discrete signal interface according to the utility model embodiment.
In the drawings, run through different diagrams, same or similar Reference numeral represents same or analogous device (module) or step.
Embodiment
In the specific descriptions of following preferred embodiment, with reference to the appended accompanying drawing that forms the utility model part.Appended accompanying drawing shows by way of example can realize specific embodiment of the present utility model.The embodiment of example is not intended to limit according to all embodiment of the present utility model.Be appreciated that not departing under the prerequisite of scope of the present utility model, can utilize other embodiment, also can carry out the modification of structural or logicality.Therefore, following specific descriptions are also nonrestrictive, and scope of the present utility model is limited by appended claim.
Fig. 1 is the system architecture schematic diagram of the test board of the utility model embodiment.
Test macro 10 comprises navigation radio-frequency signal source 11, discrete signal interface unit 12, supplements discrete signal interface unit 13, general detecting unit 14, controls display unit 15 and for the direct supply 17 of the environment of powering on simulated aircraft.Wherein, navigation radio-frequency signal source 11 and DME equipment 16 (such as stadimeter DME-4000) communication connection, and provide navigation radiofrequency signal to DME equipment 16.Discrete signal interface unit 12 and 16 communication connections of DME equipment, for receiving or send a signal to DME equipment 16.General detecting unit 14 and 12 communication connections of discrete signal interface unit, for receiving the signal from discrete signal interface unit 12, and correspondingly analyze.Control display unit 15 and 12 communication connections of discrete signal interface unit, for receiving the signal from discrete signal interface unit 12, and the user's operation receiving can be converted to control signal, by discrete signal interface unit 12, be sent to DME equipment 16.
Optionally, control display unit 15 and can be connected directly to discrete signal interface unit 12, to carry out the exchange of data.Control display unit 15 and also can be connected to discrete signal interface unit 12 by supplementing discrete signal interface unit 13, thereby form communication connection with discrete signal interface unit 12.
General, general detecting unit 14 comprises the checkout equipment that this area is conventional, for example includes but not limited to digital multimeter, oscillograph, audio analyzer etc.
Along with the requirement to flight safety improves gradually, DME renewal of the equipment is more and more faster, thereby the I/O signal kinds that DME equipment provides, number, function all corresponding change can occur.Therefore, current discrete signal interface unit, such as T1203, cannot mate completely with DME4000.The main assistance of discrete signal interface unit 12 arranges test pattern for DME equipment to be measured, and the required input/output signal of DME equipment to be measured is organized, processed, and be forwarded to the suitable equipment connecing that is attached thereto, such as DME equipment 16, general purpose test equipment 14 and control display unit 15.
In the present embodiment, control display unit 15, for example T1200B controls display, sends ARINC429 and controls signal to DME equipment 16, and analyze the ARINC429 feedback signal from DME equipment 16.Select navigation radio-frequency signal source 11, such as SDX2000, for DME equipment 16 provides rf excitation signal, discrete interface unit 12 provides discrete control signal to DME equipment 16, and receives the output signal of DME equipment 16, such as audio frequency output and ARINC429 output.Then, discrete interface unit 12 is forwarded to general purpose test equipment 14 by the output signal of DME equipment 16, thereby tests.
In order to utilize the discrete signal interface unit of existing maturation to make the test board of DME equipment 16 reach the requirement of standardization, fiduciary level and confidence level, the test macro of the present embodiment also comprises supplementary discrete signal interface unit 13, for the treatment of there is no to process or process the signal that does not meet current requirement in discrete signal interface unit 12, and as required, arrange suitable connector to be connected to general detection device 14 and control display unit 15.
During work, the DME equipment that has connected navigation radio-frequency signal source 11 is sent to discrete signal interface unit 12 by its output signal, the signal that discrete signal interface unit 12 can be organized it, process is sent to respectively general detecting unit 14 and controls display unit 15, and other cannot be processed or process the signal that does not meet current requirement, by connector, be sent to and supplement discrete signal interface unit 13, to these signals are processed.It will be appreciated by persons skilled in the art that the signal transmission demand that connector between discrete signal interface unit 12 and supplementary discrete signal interface unit 13 or cable need to meet the two.Supplement discrete signal interface unit 13 and be connected with discrete interface unit 12, to distance-measuring equipment input to be measured, supplement discrete signal, draw audio frequency, ARINC429 signal for universal tester measurement simultaneously.
It will be appreciated by persons skilled in the art that in some special applications, supplement between discrete signal interface unit 13 and DME equipment 16 and also can directly form communication connection, by wired or wireless mode, be connected directly to DME equipment 16.
Fig. 2 is the supplementary interface unit panel schematic diagram of discrete signal interface according to the utility model embodiment.The panel that supplements discrete signal interface unit 13 comprises switch 21, pilot lamp 22 and test point 23, and wherein, switch 21 can be the switch of coupling cock, selector switch or other types.23 of test points can be the test connectors of instrument connection, detective pole or other types.Switch 21 is connected with the input pin that is connected the supplementary discrete signal interface unit 13 of I/O with test point 23.It will be appreciated by persons skilled in the art that some switch can also be connected with the pilot lamp that represents its on off state.In the present embodiment, power supply 28VDC is 16 power supplies of DME equipment by discrete signal interface unit 12.Interface and discrete signal interface unit 12 that this panel passes through the back side (for example, T1203) are connected, to tested Aerial Electronic Equipment input, supplement discrete signal, draw audio frequency, ARINC429 signal for general detecting unit 14 measurements simultaneously.
Preferably; above-mentioned connector adopts metal coating shell; DME equipment 16 to be measured inserts and draws corner connection mouth according to pre-designed path, can effectively avoid the damage of the tested Aerial Electronic Equipment that causes because of plug or cause the damage that equipment under test falls because of operating personnel's misbehave.In addition, connector metal containment vessel can be derived static well, has reduced the possibility that tester is injured by static.
DME equipment testing device of the present utility model has been realized the discrete signal interface unit 12 that utilizes existing maturation, and the additional discrete signal interface unit 13 that supplements forms DME equipment testing device, has met the test request of specific DME equipment.The DME equipment testing device so forming, makes full use of existing ripe resource, simple in structure, has reduced and has manufactured and designed risk, thereby reached the high request of standardization, fiduciary level and confidence level.
It will be understood by those skilled in the art that, the utility model can also be for the test of other DME equipment, according to parameters such as the I/O signal kinds of DME equipment to be measured, number, functions, determine its input/output signal, if discrete signal interface unit cannot meet the demand of DME equipment to be measured, as long as select the corresponding discrete signal interface unit that supplements.
To those skilled in the art, obviously the utility model is not limited to the details of above-mentioned one exemplary embodiment, and in the situation that not deviating from spirit of the present utility model or essential characteristic, can realize the utility model with other concrete form.Therefore, in any case, all should regard embodiment as exemplary, and be nonrestrictive.In addition, significantly, " comprising ", other elements and step do not got rid of in a word, and wording " one " is not got rid of plural number.A plurality of elements of stating in device claim also can be realized by an element.The first, the second word such as grade is used for representing title, and does not represent any specific order.
Claims (10)
1. a test macro for distance test equipment, is characterized in that, comprising:
Navigation radio-frequency signal source, is configured to be connected with described distance test devices communicating, for providing pumping signal to described distance test equipment;
Discrete signal interface unit, is configured to be connected with described distance test devices communicating, for forwarding or process its received signal;
Control module, is configured to and described discrete signal interface unit communication connection, for receiving the signal from described discrete signal interface unit, and control signal is sent to described distance test equipment by described discrete signal interface unit;
Universal test unit, is configured to and described discrete signal interface unit communication connection, for receiving and analyze the signal from described discrete signal interface unit.
2. test macro according to claim 1, is characterized in that, described test macro also comprises the supplementary discrete signal interface unit being connected with described distance test devices communicating.
3. test macro according to claim 2, is characterized in that, described supplementary discrete signal interface unit is configured to be connected with described distance test devices communicating by discrete signal interface unit.
4. test macro according to claim 2, it is characterized in that, described supplementary discrete signal interface unit cannot process or process for receiving because described discrete signal interface unit and described distance test equipment cannot mate to cause completely the signal not meeting the demands.
5. test macro according to claim 2, it is characterized in that, described supplementary discrete signal interface unit is configured to supplement discrete signal to described distance test equipment input, and draws output signal corresponding to described supplementary discrete signal measured for described universal test unit.
6. test macro according to claim 5, it is characterized in that, the described discrete interface signal unit that supplements also comprises supplementary interface panel, described supplementary interface panel is configured to be connected with described discrete interface unit, to described distance test equipment input, supplement discrete signal, draw audio frequency, ARINC429 signal for the measurement of described universal test unit simultaneously.
7. test macro according to claim 1, is characterized in that, described distance test equipment is DME-4000 type stadimeter.
8. test macro according to claim 2, is characterized in that, described control module is for controlling display, and it communicates to connect by described supplementary discrete signal interface unit and described discrete signal interface unit.
9. test macro according to claim 1, is characterized in that, described test macro also comprises the connector with metal coating shell, and described connector has the pin interface of inserting for described distance test equipment.
10. test macro according to claim 1, is characterized in that, described test macro also comprises power module, and it is constructed to be coupled to described discrete signal interface unit, for simulating described distance test equipment power supply environment aboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420013437.4U CN203720346U (en) | 2014-01-09 | 2014-01-09 | Test system of distance test equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420013437.4U CN203720346U (en) | 2014-01-09 | 2014-01-09 | Test system of distance test equipment |
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| CN203720346U true CN203720346U (en) | 2014-07-16 |
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| CN201420013437.4U Expired - Lifetime CN203720346U (en) | 2014-01-09 | 2014-01-09 | Test system of distance test equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880627A (en) * | 2015-05-15 | 2015-09-02 | 哈尔滨飞机工业集团有限责任公司 | Onboard range finder testing device |
-
2014
- 2014-01-09 CN CN201420013437.4U patent/CN203720346U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880627A (en) * | 2015-05-15 | 2015-09-02 | 哈尔滨飞机工业集团有限责任公司 | Onboard range finder testing device |
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Granted publication date: 20140716 |
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| CX01 | Expiry of patent term |