Synchronization signal performance testing device for airborne task platform

Abstract

The utility model provides an airborne task platform synchronizing signal performance testing device, which belongs to the technical field of synchronizing signal performance testing and comprises a case switch, a case switch indicating lamp, a plurality of signal input ends and a plurality of digital display voltmeters in one-to-one correspondence with the signal input ends. One end of the case switch is connected with a positive electrode of a power supply, the other end of the case switch is connected with the case switch indicator light, the other end of the case switch indicator light is grounded, and the case switch indicator light is used for indicating on and off of the case switch; the digital display voltmeter is connected with the signal input end and displays the maximum voltage value of the sampling signal. According to the utility model, the accuracy of test results and the test efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of synchronization signal performance testing technology, specifically to a synchronization signal performance testing device for an airborne mission platform. Background Technology

[0002] In recent years, with the increase in aircraft flight missions, it is necessary to test the synchronization signal performance of airborne mission platforms to ensure flight safety. Currently, the ground inspection method for airborne mission platform synchronization signals adopts a three-dimensional form point acquisition and manual interpretation mode. The subsequent performance confirmation and system fault troubleshooting are carried out by combining the test results with the technical standards. Each point must be sampled and tested at least twice during the process.

[0003] Current methods for testing the performance of airborne mission platform synchronization signals rely on manual data collection and recording, which presents the following technical problems: 1. Manual testing suffers from poor operability, numerous human error points, and uncontrollable overall performance test quality. 2. The short signal holding time of multimeters makes it difficult to control the timing of tests. If no data is detected, the mission platform system must be pre-powered on again, resulting in significant wear and tear on components and low overall testing efficiency.

[0004] Therefore, there is an urgent need to provide a test device for the performance of synchronization signals on airborne mission platforms, to improve the operability of the test, and to ensure that the test signal is held for a long time and that the test results can be displayed intuitively. Utility Model Content

[0005] In view of this, it is necessary to provide a test device for the performance of synchronization signals of airborne mission platforms, so as to solve the technical problems of poor test accuracy and insufficient intuitiveness of test results in the existing technology based on the method of manually collecting and recording data using a multimeter.

[0006] On the one hand, in order to solve the above-mentioned technical problems, this utility model provides a device for testing the performance of synchronization signals of an airborne mission platform, including: a chassis switch, a chassis switch indicator light, multiple signal input terminals, and multiple digital display voltmeters corresponding one-to-one with the multiple signal input terminals;

[0007] One end of the chassis switch is connected to the positive terminal of the power supply, and the other end of the chassis switch is connected to the chassis switch indicator light. The other end of the chassis switch indicator light is grounded. The chassis switch indicator light is used to indicate the opening and closing of the chassis switch.

[0008] The digital voltmeter is connected to the signal input terminal and displays the maximum voltage value of the sampled signal.

[0009] In a possible implementation, the device further comprises a plurality of signal indicator lamps corresponding to the plurality of signal inputs, the signal indicator lamps and the digital voltmeters are connected in parallel, and the signal indicator lamps are connected to the signal inputs to display whether the signal inputs input the sampling signals.

[0010] In a possible implementation, the device further comprises a lamp inspection circuit configured to inspect the signal indicator lamps before the signal inputs input the sampling signals.

[0011] In a possible implementation, the device further comprises a digital voltmeter zeroing circuit configured to zero the digital voltmeters before the digital voltmeters detect the maximum voltage value for the first time or before the digital voltmeters detect the maximum voltage value for the same signal input again.

[0012] In a possible implementation, the device further comprises a first diode and a first resistor arranged between the positive electrode of the power supply and the case switch, and a second diode and a second resistor arranged between the case switch and the case switch indicator lamp.

[0013] In a possible implementation, the plurality of signal indicator lamps comprises a first signal indicator lamp, a second signal indicator lamp, a third signal indicator lamp, and a fourth signal indicator lamp.

[0014] The lamp inspection circuit comprises a lamp inspection switch and a four-way relay, the four-way relay comprises a positive input end, a negative output end, a negative trigger end, a first output end, a second output end, a third output end, and a fourth output end, the first output end, the second output end, the third output end, and the fourth output end each comprise a normally open pin and a common pin.

[0015] The normally open pin is connected to the input end of the first signal indicator lamp, the second signal indicator lamp, the third signal indicator lamp, and the fourth signal indicator lamp, the output end of the first signal indicator lamp, the second signal indicator lamp, the third signal indicator lamp, and the fourth signal indicator lamp is connected to the common pin, the positive input end is connected to the positive electrode of the power supply through the case switch, the negative output end is grounded, and the negative trigger end is grounded through the lamp inspection switch.

[0016] In a possible implementation, the lamp inspection circuit further comprises a third diode and a third resistor arranged between the case switch and the positive input end.

[0017] In a possible implementation, the plurality of digital voltmeters comprises a first digital voltmeter, a second digital voltmeter, a third digital voltmeter, and a fourth digital voltmeter.

[0018] The digital display voltage clearing circuit comprises a clearing switch, a one-way relay, a first relay connected in parallel with the first digital display voltmeter, a second relay connected in parallel with the second digital display voltmeter, a third relay connected in parallel with the third digital display voltmeter, and a fourth relay connected in parallel with the fourth digital display voltmeter.

[0019] The clearing common end is grounded, the clearing input end is connected to a positive pole of a power supply through the case switch, the clearing output end is grounded, and the clearing negative trigger end is grounded after passing through the clearing switch.

[0020] In a possible implementation manner, the digital display voltage clearing circuit further comprises a fourth diode and a fourth resistor arranged between the case switch and the clearing input end.

[0021] In a possible implementation manner, the device further comprises a fifth resistor connected in series with the signal indicator lamp.

[0022] The airborne task platform synchronous signal performance testing device provided by the utility model has the advantages that: the multiple digital display voltmeters corresponding to the multiple signal input ends are arranged, the sampling signals can be connected to the signal input ends, automatic detection of the sampling signals is realized, the maximum voltage value of the sampling signals can be continuously displayed in the digital display voltmeter, the testing intuitiveness of the airborne task platform synchronous signal is improved, the testing accuracy is improved without manual participation in the whole testing process, and the testing efficiency is improved without secondary task platform system preparation.

[0023] Further, to avoid the airborne task platform synchronous signal performance testing device from being in the starting state when not testing, the utility model sets the case switch for controlling the starting and closing of the airborne task platform synchronous signal performance testing device, and the case switch indicator lamp is used for indicating the starting and closing of the case switch, so that the controllability of the airborne task platform synchronous signal performance testing is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0025] Figure 1 An embodiment structure schematic diagram of the airborne task platform synchronous signal performance testing device provided by the present application;

[0026] Figure 2 An embodiment schematic diagram of the detailed structure of the airborne task platform synchronous signal performance testing device provided by the present application. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0028] It should be understood that the schematic drawings are not drawn according to the actual proportion. The flowchart used in the present application shows the operations realized according to some embodiments of the present application. It should be understood that the operations of the flowchart can not be realized in sequence, and the steps without logical context relationship can be reversed in sequence or implemented simultaneously. In addition, one or more other operations can be added to the flowchart or removed from the flowchart by those skilled in the art under the guidance of the content of the present application. Some block diagrams shown in the drawings are functional entities, which do not necessarily correspond to physically or logically independent entities. These functional entities can be realized in the form of software, or in one or more hardware modules or integrated circuits, or in different network and / or processor systems and / or microcontroller systems.

[0029] In this paper, the phrase "embodiment" means that the specific features, structures or characteristics described in combination with the embodiment can be included in at least one embodiment of the present application. The phrase appears in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment to other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0030] The present application provides an airborne task platform synchronous signal performance testing device, which will be described in detail below.

[0031] Figure 1 The embodiment structure schematic diagram of the airborne task platform synchronous signal performance testing device provided by the utility model is shown in the figure, Figure 2 The embodiment structure schematic diagram of the detail structure of the airborne task platform synchronous signal performance testing device provided by the utility model is shown in the figure, Figure 1 And Figure 2 As shown in the figure, the airborne task platform synchronous signal performance testing device 10 comprises a case switch 100, a case switch indicator lamp 200, a plurality of signal input ends 300 and a plurality of digital display voltmeters 400 corresponding to the plurality of signal input ends 300 one by one.

[0032] One end of the case switch 100 is connected with the positive pole of a power supply, the other end of the case switch 100 is connected with the case switch indicator lamp 200, the other end of the case switch indicator lamp 200 is grounded, and the case switch indicator lamp 200 is used for indicating the opening and closing of the case switch 100.

[0033] The digital display voltmeter 400 is connected with the signal input end 300 and displays the maximum voltage value of the sampling signal.

[0034] In the specific embodiment of the utility model, as shown in the figure, Figure 1 The airborne task platform synchronous signal performance testing device 10 comprises four signal input ends 300 and four digital display voltmeters 400 corresponding to the four signal input ends 300 one by one.

[0035] It should be understood that: the number of signal input ends 300 can be adjusted according to the actual application scene, which is not described here.

[0036] Among them, the digital display voltmeter 400 continuously displays the detected maximum voltage value.

[0037] Among them, the signal input end 300 can be connected with the sampling test end through a signal receiving plug.

[0038] Compared with the prior art, the airborne task platform synchronous signal performance testing device provided by the utility model embodiment can input the sampling signal through the signal input end, realize the automatic detection of the sampling signal, and continuously display the maximum voltage value of the sampling signal in the digital display voltmeter, thereby improving the testing intuitiveness of the airborne task platform synchronous signal. Moreover, the whole testing process does not need manual participation, thereby avoiding the human operation error and improving the testing accuracy. Meanwhile, whether all the signal input ends successfully complete the testing can be judged through the plurality of digital display voltmeters, without the need of secondary task platform system preparation, thereby improving the testing efficiency.

[0039] Further, to avoid the airborne task platform synchronous signal performance testing device also in the on state when not testing, the utility model embodiment sets up the case switch for controlling the opening and closing of the airborne task platform synchronous signal performance testing device, simultaneously, through the case switch pilot lamp for indicating the opening and closing of the case switch, improved the controllability of the airborne task platform synchronous signal performance testing.

[0040] Since the digital voltmeter 400 needs to be read after reading, the synchronous signal performance test result can be judged, in order to more intuitively judge the synchronous signal performance test result, in some embodiments of the utility model, as shown in Figure 1 The airborne task platform synchronous signal performance testing device 10 further comprises a plurality of signal indicator lamps 500 corresponding to the plurality of signal input ends 300, the signal indicator lamp 500 and the corresponding digital voltmeter 400 are connected in parallel, the signal indicator lamp 500 is connected with the signal input end 300, and the signal input end 300 is used to display whether the sampling signal is input.

[0041] The utility model embodiment is through the signal indicator lamp 500 connected in parallel with the digital voltmeter 400, and the sampling signal is displayed intuitively through the signal indicator lamp 500, and the preliminary detection result of the sampling signal can be judged intuitively through the burning out / turning off state of the signal indicator lamp 500, when the preliminary detection result is reliable, the digital voltmeter 400 is read again, and the efficiency of result judgment of the sampling signal is further improved, that is, the test efficiency is further improved.

[0042] The premise of judging the test result based on the burning out / turning off state of the signal indicator lamp 500 is that the signal indicator lamp 500 does not fail, otherwise, the test result will be inaccurate. To avoid the technical problem that the test result is inaccurate when this situation occurs, in some embodiments of the utility model, as shown in Figure 1 The airborne task platform synchronous signal performance testing device 10 further comprises a lamp detection circuit 600, and the lamp detection circuit 600 is used to detect the signal indicator lamp 500 before the sampling signal is input to the signal input end 300.

[0043] The utility model embodiment detects the signal indicator lamp before testing, ensures the reliability of the signal indicator lamp 500, and further improves the accuracy and reliability of the test result.

[0044] Specifically, the process of detecting the signal indicator lamp 500 based on the lamp detection circuit 600 is that before testing, the detection is carried out, whether the signal indicator lamp 500 burns first and then turns off is judged, if yes, the detection passes, and if not, the detection fails.

[0045] From the foregoing description: digital voltmeter 400 is used for long time display maximum voltage value, when using digital voltmeter 400 to display before it is not zero, the test result will be wrong, to avoid this technical problem, in some embodiments of the utility model, as shown in Figure 1 The on-board task platform synchronization signal performance test device 10 also includes a digital voltage zeroing circuit 700, which is used to zero the digital voltage meter 400 before it first detects the maximum voltage value or before it detects the maximum voltage value again for the same signal input end 300.

[0046] The utility model embodiment through setting digital voltage zeroing circuit 700 in digital voltage meter 400 first carries out maximum voltage value detection or to the same signal input end 300 again carries out maximum voltage value detection before, digital voltage meter 400 is zeroed, avoids the current reading of digital voltage meter 400 to cause the adverse effect of next test result, further improved the accuracy of test result.

[0047] In the specific embodiments of the utility model, as shown in Figure 1 The plurality of signal indicator lamps include a first signal indicator lamp, a second signal indicator lamp, a third signal indicator lamp and a fourth signal indicator lamp.

[0048] As shown in Figure 2 The lamp detection circuit includes a lamp detection switch and a four-way relay, and the four-way relay includes a positive input end, a negative output end, a negative trigger end, a first output end, a second output end, a third output end and a fourth output end. The first output end, the second output end, the third output end and the fourth output end each include a normally open pin (NO) and a common pin (COM).

[0049] The normally open pin is connected with the input ends of the first signal indicator lamp, the second signal indicator lamp, the third signal indicator lamp and the fourth signal indicator lamp. The output ends of the first signal indicator lamp, the second signal indicator lamp, the third signal indicator lamp and the fourth signal indicator lamp are connected with the common pin. The positive input end is connected with the positive pole of the power supply through a case switch. The negative output end is grounded. The negative trigger end is grounded through the lamp detection switch.

[0050] The working principle of the lamp detection circuit is that the four-way relay outputs a voltage signal through the negative trigger end to establish a loop including the signal indicator lamp 500. After the loop is connected, the signal indicator lamp 500 is lit. When the negative trigger end is not triggered, the loop is disconnected, and the signal indicator lamp 500 is extinguished.

[0051] In the specific embodiments of the utility model, as shown in Figure 1 The plurality of digital voltage meters include a first digital voltage meter, a second digital voltage meter, a third digital voltage meter and a fourth digital voltage meter.

[0052] Then as Figure 2 shown, the digital display voltage zero clearing circuit includes a zero clearing switch, a one-way relay, a first relay connected in parallel with the first digital display voltmeter, a second relay connected in parallel with the second digital display voltmeter, a third relay connected in parallel with the third digital display voltmeter, and a fourth relay connected in parallel with the fourth digital display voltmeter, the one-way relay including a zero clearing input end, a zero clearing output end, a zero clearing negative trigger end, a zero clearing normally open pin (zero clearing NO), and a zero clearing common pin (zero clearing COM);

[0053] The zero clearing normally open pin is connected with the input ends of the first relay, the second relay, the third relay, and the fourth relay, the output ends of the first relay, the second relay, the third relay, and the fourth relay are grounded, the zero clearing common end is grounded, the zero clearing input end is connected with the positive pole of the power supply through the case switch, the zero clearing output end is grounded, and the zero clearing negative trigger end is grounded after passing through the zero clearing switch.

[0054] The first relay, the second relay, the third relay, and the fourth relay are attracted after being triggered at the zero clearing negative trigger end, thereby controlling the first digital display voltmeter, the second digital display voltmeter, the third digital display voltmeter, and the fourth digital display voltmeter corresponding thereto to clear zero.

[0055] To avoid damage to each component in the airborne mission platform synchronous signal performance testing device 10 caused by excessive voltage or current backflow of the positive pole of the power supply, in some embodiments of the present application, the airborne mission platform synchronous signal performance testing device 10 further includes a first diode 11 and a first resistor 21 arranged between the positive pole of the power supply and the case switch 100, and a second diode 12 and a second resistor 22 arranged between the case switch 100 and the case switch indicator lamp 200.

[0056] The lamp detection circuit 600 further includes a third diode 13 and a third resistor 23 arranged between the case switch 100 and the positive input end.

[0057] The digital display voltage zero clearing circuit 700 further includes a fourth diode 14 and a fourth resistor 24 arranged between the case switch 100 and the zero clearing input end.

[0058] Similarly, the airborne mission platform synchronous signal performance testing device 10 further includes a fifth resistor 25 connected in series with the signal indicator lamp 500.

[0059] The embodiments of the present application avoid current backflow by arranging diodes and realize voltage division by arranging resistors, thereby avoiding excessive pressure on components, improving the use safety and service life of each component in the airborne mission platform synchronous signal performance testing device 10.

[0060] In one embodiment of the utility model, the complete test process of the airborne task platform synchronous signal performance test device 10 is: first open the case switch 100, at this time the case switch indicator light 200 is lit, then press the lamp detection switch, at this time the signal indicator light 500 is lit and then extinguished in turn, then press the clear switch, the corresponding digital voltage meter 400 is zeroed in turn, finally according to the need of connecting the signal input end 300 with the sampling test end, adjusting the task platform system to carry out signal sampling test, when the signal is input, on the one hand the corresponding signal indicator light 500 is lit, on the other hand the corresponding digital voltage meter 400 will record the maximum voltage value of the sampling signal, thereby completing the instantaneous sampling test of the signal. In addition, when the same signal input end 300 needs to be sampled again, the signal indicator light 500 lamp detection and the digital voltage meter 400 zero operation are needed first, to prevent the test signal result from being abnormal due to the test device system failure or error.

[0061] The airborne task platform synchronous signal performance test device provided by the utility model can quickly test and record the airborne task platform synchronous signal, overcome the short signal holding time and large manual test error, and minimize the test device system failure or error through the internally arranged lamp detection circuit and zero circuit, improve the accuracy of test data, and the whole test work can be completed by one person in 0.5 hours, instead of three people in two hours, so that the test efficiency is greatly improved.

[0062] The airborne task platform synchronous signal performance test device provided by the utility model is described in detail above, the principle and implementation mode of the utility model are described by applying specific examples in the text, and the above embodiment is only used to help understand the working principle and core idea of the utility model; meanwhile, according to the idea of the utility model, the specific implementation mode and application range will be changed by the person skilled in the art, and the above is not understood as the limitation of the utility model.

Claims

1. An airborne mission platform synchronization signal performance test apparatus, characterized by, The device comprises: a case switch, a case switch indicator, a plurality of signal input terminals, and a plurality of digital voltage meters corresponding to the plurality of signal input terminals; one end of the case switch is connected to a positive electrode of a power supply, the other end of the case switch is connected to the case switch indicator, the other end of the case switch indicator is grounded, and the case switch indicator is used to indicate the opening and closing of the case switch; the digital voltage meter is connected to the signal input terminal and displays the maximum voltage value of the sampling signal.

2. The airborne mission platform synchronization signal performance test apparatus of claim 1, wherein, The device further comprises a plurality of signal indicators corresponding to the plurality of signal input terminals, the signal indicator and the corresponding digital voltage meter are connected in parallel, the signal indicator is connected to the signal input terminal, and is used to display whether the signal input terminal inputs the sampling signal.

3. The airborne mission platform synchronization signal performance test apparatus of claim 2, wherein, The device further comprises a lamp detection circuit, which is used to detect the signal indicator before the signal input terminal inputs the sampling signal.

4. The airborne mission platform synchronization signal performance test apparatus of claim 1, wherein, The device further comprises a digital voltage zero clearing circuit, which is used to clear the digital voltage meter before the digital voltage meter detects the maximum voltage value for the first time or before the digital voltage meter detects the maximum voltage value for the same signal input terminal again.

5. The airborne mission platform synchronization signal performance test apparatus of claim 1, wherein, The device further comprises a first diode and a first resistor arranged between the positive electrode of the power supply and the case switch, and a second diode and a second resistor arranged between the case switch and the case switch indicator.

6. The airborne mission platform synchronization signal performance test apparatus of claim 3, wherein, The plurality of signal indicators comprises a first signal indicator, a second signal indicator, a third signal indicator, and a fourth signal indicator. The lamp detection circuit comprises a lamp detection switch and a four-way relay, the four-way relay comprises a positive input terminal, a negative output terminal, a negative trigger terminal, a first output terminal, a second output terminal, a third output terminal, and a fourth output terminal, the first output terminal, the second output terminal, the third output terminal, and the fourth output terminal each comprise a normally open pin and a common pin; the normally open pin is connected to the input terminal of the first signal indicator, the second signal indicator, the third signal indicator, and the fourth signal indicator, the output terminal of the first signal indicator, the second signal indicator, the third signal indicator, and the fourth signal indicator is connected to the common pin, the positive input terminal is connected to the positive electrode of the power supply through the case switch, the negative output terminal is grounded, and the negative trigger terminal is grounded through the lamp detection switch.

7. The airborne mission platform synchronization signal performance test apparatus of claim 6, wherein, The lamp detection circuit further comprises a third diode and a third resistor arranged between the case switch and the positive input terminal.

8. The airborne mission platform synchronization signal performance test apparatus of claim 4, wherein, The plurality of digital voltage meters comprises a first digital voltage meter, a second digital voltage meter, a third digital voltage meter, and a fourth digital voltage meter; the digital voltage zero clearing circuit comprises a zero clearing switch, a one-way relay, a first relay connected in parallel to the first digital voltage meter, a second relay connected in parallel to the second digital voltage meter, a third relay connected in parallel to the third digital voltage meter, and a fourth relay connected in parallel to the fourth digital voltage meter, the one-way relay comprises a zero clearing input terminal, a zero clearing output terminal, a zero clearing negative trigger terminal, a zero clearing normally open pin, and a zero clearing common pin; The zero-clearing normally open pin is connected with the input end of the first relay, the second relay, the third relay and the fourth relay, the output end of the first relay, the second relay, the third relay and the fourth relay is grounded, the zero-clearing common end is grounded, the zero-clearing input end is connected with the positive pole of the power supply through the case switch, the zero-clearing output end is grounded, and the zero-clearing negative trigger end is grounded after passing through the zero-clearing switch.

9. The airborne mission platform synchronization signal performance test apparatus of claim 8, wherein, The digital display voltage zero-clearing circuit further comprises a fourth diode and a fourth resistor arranged between the case switch and the zero-clearing input end.

10. The airborne mission platform synchronization signal performance test apparatus of claim 2, wherein, The device further comprises a fifth resistor connected in series with the signal indicator lamp.

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