HATS II interface expansion device

Abstract

The utility model discloses an HATS II interface expansion device. The HATS II interface expansion device comprises a test box body, a main control module, a relay array module, a signal branching module and a power supply module are respectively arranged in the test box body; the HATS II interface is electrically connected with the signal branching module, and the signal branching module splits a signal into a plurality of parts to form a plurality of expansion interfaces; the plurality of expansion interfaces are electrically connected with the plurality of relay array modules respectively; the main control module controls whether the relay array module is conducted or not to complete connection and disconnection of the expansion interface and the HATS II interface; the power supply module is electrically connected with the main control module, the relay array module and the signal branching module respectively. According to the utility model, the frequent operation of testing personnel on testing interfaces is reduced, and the possibility of misoperation is reduced and even eliminated. Meanwhile, due to the fact that frequent operation on the interface is reduced, the mechanical performance of a metal elastic piece, a plating layer and a contact resistor in the interface cannot be further damaged, and the service life of the HATS II interface is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of HATS II, in particular to a HATS II interface expansion device. Background Art

[0002] Currently, when testing FDR (Flight Data Recorder) and CVR (Cockpit Voice Recorder), it is necessary to use HATS (Honeywell Automatic Test System) II. However, since HATS II has only one interface, when facing different FDRs and CVRs, it is necessary to frequently change the connected cables, which may cause misoperation in the test and easily shorten the service life of the interface due to frequent plugging and unplugging of the connector. Therefore, developing a device that can expand the HATS II interface has become an urgent problem to be solved currently. Content of the Utility Model

[0003] The purpose of the utility model is to provide a HATS II interface expansion device, which reduces the frequent operation of the test interface by the tester and reduces or even eliminates the possibility of misoperation. At the same time, because the frequent operation of the interface is reduced, the mechanical properties, coating, and contact resistance of the metal elastic pieces in the interface will not be further damaged, and the service life of the HATS II interface is extended.

[0004] To achieve the above purpose, the utility model is realized by the following technical solutions: a HATS II interface expansion device, including a test box body; wherein: a main control module, a relay array module, a signal distribution module, and a power supply module are respectively arranged inside the test box body; the HATS II interface is electrically connected to the signal distribution module, and the signal distribution module splits the signal into multiple copies to form a plurality of expansion interfaces; the plurality of expansion interfaces are respectively electrically connected to the plurality of relay array modules; the main control module controls whether the relay array module is turned on to complete the connection and disconnection between the expansion interface and the HATS II interface; the power supply module is respectively electrically connected to the main control module, the relay array module, and the signal distribution module.

[0005] Further, as an improvement of the technical solution of the utility model, the main control module is composed of an STM32 single-chip microcomputer and its peripheral circuits; the main control module connects the buttons of the test box body to the digital input port through the J5 interface; the main control module drives the corresponding relay array module through the J4 interface.

[0006] Further, as an improvement of the technical solution of the utility model, both the relay array module and the expansion interface are provided with 4; the relay array module is connected to the main control module through the J2 interface; the relay array module is connected to the signal distribution module through the J3 interface, and selectively extends the signal lines expanded from HATS II out of the external through the J1 interface.

[0007] As a further improvement to the technical solution of the present utility model, the signal distribution module is connected to the interface of HATSII through the J1 interface, and the signals of HATS II are expanded into four parts and respectively connected to the J2 interface, J3 interface, J4 interface, and J5 interface to connect the 4 relay array modules.

[0008] As a further improvement to the technical solution of the present utility model, the power supply module is electrically connected to the main control module and the relay array module through a capacitor discharge circuit; the capacitor discharge circuit includes a Q5 triode, a resistor R22, and a resistor R24; the Q5 triode is electrically connected to the resistor R22 and the resistor R24 respectively; the resistor R22 and the resistor R24 are connected in series.

[0009] As a further improvement to the technical solution of the present utility model, the relay array module includes a relay array drive circuit; the relay array drive circuit is composed of a TLP127 coupler and its peripheral circuit.

[0010] As a further improvement to the technical solution of the present utility model, the relay array module is set or reset by means of electrical pulses.

[0011] Advantages of the present utility model:

[0012] In the present utility model, the signals of HATS II are expanded into multiple parts and connected to multiple relay array modules through the signal distribution module. The main control module monitors the buttons on the test box. When a button is pressed, an electrical pulse is triggered to the corresponding relay array module, making the relay array module conductive and connecting the signals of HATS II to the expanded interfaces. The present utility model reduces the frequent operation of the test personnel on the test interfaces, reduces or even eliminates the possibility of misoperation. At the same time, because of the reduction of the frequent operation on the interfaces, the mechanical properties, plating, and contact resistance of the metal elastic pieces in the interfaces will not be further damaged, extending the service life of the HATS II interfaces. Description of the Drawings

[0013] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, purposes, and advantages of the present utility model will become more obvious:

[0014] Figure 1 It is a schematic structural diagram of the HATS II interface expansion device provided by the embodiment of the present utility model.

[0015] Figure 2 It is a schematic system structural diagram of the HATS II interface expansion device provided by the embodiment of the present utility model.

[0016] Figure 3It is a schematic diagram of the device box structure provided by the embodiment of the present utility model.

[0017] Figure 4 It is the circuit diagram of the main control module provided by the embodiment of the present utility model.

[0018] Figure 5 It is Figure 4 the schematic diagram of the structure of the J4 interface in

[0019] Figure 6 It is Figure 4 the schematic diagram of the structure of the J5 interface in

[0020] Figure 7 It is the drive circuit diagram of the relay array module provided by the embodiment of the present utility model.

[0021] Figure 8 It is the circuit diagram of the power module provided by the embodiment of the present utility model.

[0022] Figure 9 It is the interface circuit diagram of the relay array module provided by the embodiment of the present utility model.

[0023] Figure 10 It is the circuit diagram of the signal splitting module provided by the embodiment of the present utility model.

[0024] In the figure: 1 - test box; 2 - power module; 3 - main control module; 4 - relay array module; 5 - signal splitting module. Specific implementation manners

[0025] Next, the present utility model will be described in detail with reference to the accompanying drawings and specific embodiments. Here, the schematic embodiments and descriptions of the present utility model are used to explain the present utility model, but not to limit the present utility model.

[0026] It should be noted that all the directional indications (such as up, down, left, right, front, back, upper end, lower end, top, bottom...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0027] In the present utility model, unless otherwise clearly defined and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meaning of the above terms in the present utility model can be understood according to specific circumstances.

[0028] In addition, in the present utility model, descriptions such as "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. Additionally, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0029] The following will further describe the present utility model in detail with reference to the Figure 1-10 accompanying drawings.

[0030] Please refer to Figures 1 to 10 , the present utility model provides a technical solution: a HATS II interface expansion device, including a test box body 1; wherein: a main control module 3, a relay array module 4, a signal distribution module 5, and a power supply module 2 are respectively arranged inside the test box body 1; the HATS II interface is electrically connected to the signal distribution module 5, and the signal distribution module 5 splits the signal into multiple copies to form a plurality of expansion interfaces; the plurality of expansion interfaces are respectively electrically connected to the plurality of relay array modules 4; the main control module controls whether the relay array module 4 is turned on to complete the connection and disconnection between the expansion interface and the HATS II interface; the power supply module 2 is respectively electrically connected to the main control module 3, the relay array module 4, and the signal distribution module 5. The present utility model expands the signal of HATS II into multiple copies through the signal distribution module 5 and connects them to a plurality of relay array modules 4. The main control module 3 monitors the buttons on the test box body 1. When a button is pressed, an electric pulse is triggered to the corresponding relay array module 4, making the relay array module 4 turned on, and connecting the signal of HATS II to the expanded interface. The present utility model reduces the frequent operation of the test interface by the test personnel and reduces or even eliminates the possibility of misoperation. At the same time, because of the reduction of the frequent operation of the interface, the mechanical properties, plating layer, and contact resistance of the metal elastic sheet inside the interface will not be further damaged, and the service life of the HATS II interface is prolonged.

[0031] Specifically, in the solution of this embodiment, the main control module 3 is composed of an STM32 single-chip microcomputer and its peripheral circuits; the main control module 3 connects the buttons of the test box body 1 to the digital input port through the J5 interface, and judges in real time whether each button is pressed, and then outputs to the corresponding triode after judgment and processing according to the program written by the single-chip microcomputer. The main control module 3 drives the corresponding relay array module 4 through the J4 interface.

[0032] Specifically, in the solution of this embodiment, both the relay array module 4 and the expansion interface are provided with 4; the relay array module 4 is connected to the main control module 3 through the J2 interface; the relay array module 4 is connected to the signal distribution module 5 through the J3 interface, and selectively extends the signal lines expanded by HATS II to the outside through the J1 interface.

[0033] Specifically, in the solution of this embodiment, the signal distribution module 5 is connected to the interface of HATS II through the J1 interface, and expands the signals of HATS II into four parts and connects them to the J2 interface, J3 interface, J4 interface, and J5 interface respectively to connect 4 relay array modules 4.

[0034] Specifically, in the solution of this embodiment, the power supply module 2 is electrically connected to the main control module 3 and the relay array module 4 through a capacitor discharge circuit; the capacitor discharge circuit includes a Q5 triode, a resistor R22, and a resistor R24; the Q5 triode is electrically connected to the resistor R22 and the resistor R24 respectively; the resistor R22 and the resistor R24 are connected in series.

[0035] It should be noted that the power supply module 2 mainly provides power for each functional module in the device. The input is 220VAC mains power, which is converted into about 12V DC power through voltage transformation and rectification steps inside and connected to the main control module 3. The Q5 triode and the R22 and R24 resistors form a capacitor discharge circuit to improve the reliability of the circuit. The C22 capacitor can improve the quality of the DC power and obtain a relatively stable DC power. The subsequent VR1 voltage regulator converts 12VDC into a 3.3VDC voltage source respectively. The C23 and C24 capacitors are responsible for eliminating clutter, and the C25 - C28 capacitors are responsible for energy storage to weaken the power supply fluctuations caused when the relay array module 4 is set.

[0036] Specifically, in the solution of this embodiment, the relay array module 4 includes a relay array drive circuit; the relay array drive circuit is composed of a TLP127 coupler and its peripheral circuits.

[0037] Specifically, in the solution of this embodiment, the relay array module 4 is set or reset by means of electrical pulses. It should be noted that there are 4 relay array modules 4 in this device corresponding to 4 expanded connectors, which are connected to the main control module 3 through the J2 interface, and are set or reset by means of electrical pulses, without relying on a continuous high level to maintain the setting, so as to isolate the influence of power supply fluctuations on signal transmission and increase the stability of signal transmission.

[0038] The beneficial effects of the present utility model:

[0039] Compared with the prior art, the utility model reduces the frequent operation of testers on the test interface and reduces or even eliminates the possibility of misoperation. At the same time, because of the reduction of the frequent operation on the interface, the mechanical properties, plating layer and contact resistance of the metal shrapnel in the interface will not be further damaged, and the service life of the HATS II interface is prolonged.

[0040] The technical solutions provided by the embodiments of the present utility model have been introduced in detail above. Specific examples are used in this article to elaborate on the principles and implementation manners of the embodiments of the present utility model. The description of the above embodiments is only applicable to helping understand the principles of the embodiments of the present utility model; at the same time, for those of ordinary skill in the art, based on the embodiments of the present utility model, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation on the present utility model.

Claims

1. A HATS II interface expansion device, comprising a test box body; characterized in that: Inside the test box, there are respectively arranged a main control module, a relay array module, a signal distribution module and a power supply module; the HATS II interface is electrically connected to the signal distribution module, and the signal distribution module splits the signal into multiple parts to form multiple expansion interfaces; the multiple expansion interfaces are respectively electrically connected to the multiple relay array modules; the main control module controls whether the relay array module is turned on to complete the connection and disconnection between the expansion interface and the HATS II interface; the power supply module is respectively electrically connected to the main control module, the relay array module and the signal distribution module.

2. The HATS II interface expansion device according to claim 1, wherein: The main control module is composed of an STM32 single-chip microcomputer and its peripheral circuit; the main control module connects the keys of the test box to the digital input port through the J5 interface; the main control module drives the corresponding relay array module through the J4 interface.

3. The HATS II interface expansion device according to claim 1, characterized in that: There are 4 relay array modules and 4 expansion interfaces respectively; the relay array module is connected to the main control module through the J2 interface; the relay array module is connected to the signal distribution module through the J3 interface, and selectively expands the signal lines extended from HATS II out of the external through the J1 interface.

4. The HATS II interface expansion device according to claim 1, characterized in that: The signal distribution module is connected to the interface of HATS II through the J1 interface, and expands the signal of HATS II into four parts and connects them to the J2 interface, J3 interface, J4 interface and J5 interface respectively to connect 4 relay array modules.

5. The HATS II interface expansion device according to claim 1, wherein: The power supply module is respectively electrically connected to the main control module and the relay array module through a capacitor discharge circuit; the capacitor discharge circuit includes a Q5 triode, a resistor R22 and a resistor R24; the Q5 triode is respectively electrically connected to the resistor R22 and the resistor R24; the resistor R22 and the resistor R24 are connected in series.

6. The HATS II interface expansion device according to claim 1, wherein: The relay array module includes a relay array driving circuit; the relay array driving circuit is composed of a TLP127 coupler and its peripheral circuit.

7. The HATS II interface expansion device according to claim 1, wherein: The relay array module is set or reset by means of electrical pulses.

Images