CN215340313U - Onboard range finder tester - Google Patents

Abstract

The utility model relates to the technical field of measurement and control, and discloses an airborne distance measuring machine tester which comprises a tester main panel, wherein the tester main panel comprises a main connector J1, a CSDB signal interface module, an AUDIO AUDIO module, an ARINC429 module and a discrete switch module, and the main connector J1 is connected with an airborne distance measuring machine; the CSDB signal interface switch module comprises a selection switch and a signal testing hole; the AUDIO AUDIO module comprises an AUDIO switch and an AUDIO test hole; the ARINC429 module comprises a band switch and a bus test hole. The utility model can conveniently test the airborne distance measuring machine, has simple and intuitive operation, can prevent test operation errors, ensures the stability and the safety of signals and power supply and reduces the damage to maintenance engineers and parts. In addition, the utility model can realize the data communication between the airborne distance measuring machine and the external equipment, the shielding grounding is designed on the interface, the external interference is filtered, the signal control is carried out through the relevant switch, and the signal receiving and sending are realized.

Description

Onboard range finder tester

Technical Field

The utility model relates to the technical field of measurement and control, in particular to an airborne distance measuring machine tester.

Background

Currently, an onboard rangefinder (DME), which is a non-autonomous pulsed (time based) short range navigation system, is a range system component of an aircraft. Since 1959, it has become a standard distance measuring system approved by the International Civil Aviation Organization (ICAO), and its equipment is on the rise worldwide and is widely used. It acquires distance information by measuring the propagation time of radio waves in space. Its appearance is closely related to the development of radar technology, but its operation mode is very different from that of primary radar, it does not use passive reflection of signal, but uses retransmission mode to operate, and it is formed from airborne interrogator (airborne DME interrogator) and ground transponder (DME antenna and ground DME station). The device for testing the ARJ21 airborne distance measuring machine (DME) does not exist in the prior art, and the signal problem that the ARJ21 airborne distance measuring machine (DME) can not be accurately positioned in actual maintenance can not be effectively solved, so that corresponding adjustment and repair can not be effectively carried out, and the maintenance quality and the maintenance efficiency are low.

SUMMERY OF THE UTILITY MODEL

The utility model provides an onboard range finder tester, thereby solving the above problems of the prior art.

The utility model provides an airborne distance measuring machine tester, which comprises a tester main panel, wherein the tester main panel comprises a main connector J1, a CSDB signal interface module, an AUDIO AUDIO module, an ARINC429 module and a discrete switch module, and the main connector J1 is connected with an airborne distance measuring machine; the CSDB signal interface switch module comprises a selection switch and a signal testing hole; the AUDIO AUDIO module comprises an AUDIO switch and an AUDIO test hole; the ARINC429 module comprises a band switch and a bus test hole.

Further, the discrete switch module comprises a plurality of analog discrete switches, the plurality of analog discrete switches are respectively used for simulating discrete signals, and the discrete signals comprise a data loading signal, a self-test signal, a DME use and standby signal, a burst signal, a 429 and CSDB selection signal, a WOW air-ground signal, a control box A selection signal, a control box B selection signal and a control box C selection signal.

Furthermore, the signal test hole, the audio test hole and the bus test hole are respectively provided with shielding grounding.

Furthermore, the main panel of the tester also comprises a power supply module, an indicator light, a voltage testing hole and a grounding testing hole, wherein the power supply switch module comprises a power supply switch which is used for controlling the input of a power supply; the indicating lamp is used for indicating whether an input power supply exists or not; the voltage test hole is used for monitoring voltage.

Further, the power module can realize overcurrent protection.

Furthermore, the main panel of the tester also comprises an inhibition switch, a BNC interface, a channel switch, a channel indicator lamp and a channel test hole, wherein the inhibition switch is used for selecting the onboard range finder to inhibit input and output, and the BNC interface is used for sending and receiving signals; the inhibition switch is used for selecting channel input holding, the channel indicator light is used for indicating channel output, and the channel test hole is used for testing input and output signals held by the channel.

The utility model has the beneficial effects that: the utility model leads out all the test pins of the airborne distance measuring machine tester, designs the special test holes and is convenient for testing. For the discrete pins of the airborne distance measuring machine, the discrete pins are connected with different discrete points through different types of switches, the operation is simple and visual, and the test operation error is prevented through the ingenious connection design. The utility model simulates the connection of parts on the airplane, and is connected with the parts through the positioning pins and the professional connectors matched with the parts, thereby providing a good environment for the test of the parts, ensuring the stability and the safety of signals and power supply and reducing the damage to maintenance engineers and the parts. In addition, the utility model can realize the data communication between the airborne distance measuring machine and the external equipment through a special data interface, and the interface is designed with shielding grounding to filter external interference. And the signal control is carried out through the related switches, so that the signal receiving and sending are realized, and the operation is convenient.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments are briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an airborne range finder tester provided in this embodiment.

Fig. 2 is a schematic diagram of a connection between the main connector J1 and the TX Port Select band switch provided in the first embodiment.

Fig. 3 is a schematic diagram of the connection between the main connector J1 and the RX Port Select band switch according to the first embodiment.

Fig. 4 is a schematic diagram of the bus test hole connection between the main connector J1 and the ARINC429 module according to this embodiment.

Fig. 5 is a schematic diagram of the main connector J1 and the AUDIO module according to the first embodiment.

Fig. 6 is a schematic diagram of the connection between the main connector J1 and the CSDB signal interface switch module according to the first embodiment.

Fig. 7 is a schematic diagram of the connection between the main connector J1 and the hold switch according to the first embodiment.

Fig. 8 is a schematic diagram of the connection between the main connector J1 and the inhibit switch according to the first embodiment.

Fig. 9 is a schematic diagram of the main connector J1 connected to several switches according to the first embodiment.

Fig. 10 is a schematic diagram of the connection between the main connector J1 and the power switch according to the first embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. It is noted that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of the present invention and the above-described drawings are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

In one embodiment, an airborne rangefinder tester, as shown in fig. 1, includes a tester main panel, the tester main panel includes a main connector J1, a CSDB signal interface module, an AUDIO module, an ARINC429 module, and a discrete switch module, the main connector J1 is connected to an airborne rangefinder; the CSDB signal interface switch module comprises a selection switch and a signal testing hole; the AUDIO AUDIO module comprises an AUDIO switch and an AUDIO test hole; the ARINC429 module comprises a band switch and a bus test hole.

The discrete switch module comprises a plurality of analog discrete switches, the analog discrete switches are respectively used for simulating discrete signals, and the discrete signals comprise a data loading signal, a self-test signal, a DME use and standby signal, a burst signal, 429 and CSDB selection signals, a WOW air-ground signal, a control box A selection signal, a control box B selection signal and a control box C selection signal.

The signal test hole, the audio test hole and the bus test hole are respectively provided with shielding grounding.

The main panel of the tester is also provided with a power supply module, an indicator light, a voltage testing hole and a grounding testing hole, wherein the power supply switch module comprises a power supply switch, and the power supply switch is used for controlling the input of a power supply; the indicating lamp is used for indicating whether an input power supply exists or not; the voltage test hole is used for monitoring voltage.

The power module can realize overcurrent protection.

The main panel of the tester also comprises an inhibition switch, a BNC interface, a channel switch, a channel indicator light and a channel test hole, wherein the inhibition switch is used for selecting the inhibition input and the inhibition output of the airborne distance measuring machine, and the BNC interface is used for sending and receiving signals; the inhibition switch is used for selecting channel input holding, the channel indicator light is used for indicating channel output, and the channel test hole is used for testing input and output signals held by the channel.

The working principle of the utility model is that the airborne distance measuring machine forms a pairing signal of 429 control words with the T1200B control display component, then the pairing signal is sent to the ATC-5000NG through a transmission line and is communicated with the ATC-5000NG, the ATC-5000NG simulates a ground platform to return data to the airborne distance measuring machine, and then the actual distance information is displayed through the T1200B, thereby realizing distance test response.

The main connector J1 of the utility model comprises a plurality of pins, the plurality of pins comprise pins J1-01 to J1-65, the plurality of pins are correspondingly connected with each module on the main panel of the tester through internal circuits, and the circuit schematic diagram of the main connector J1 is shown in figures 2 to 2

As shown in FIG. 2, a pin J1-01, a pin J1-23, a pin J1-05, a pin J1-07, a pin J1-02, a pin J1-24, a pin J1-06 and a pin J1-08 are respectively and correspondingly connected with a TX Port Select waveband switch of an ARINC429 module; as shown in FIG. 3, the pins J1-03, J1-21, J1-15, J1-04, J1-22 and J1-16 are respectively connected to the RX Port Select band switch of the ARINC429 module; as shown in FIG. 4, the pins J1-09, J1-10, J1-13 and J1-14 are correspondingly connected with the bus test holes of the ARINC429 module respectively.

As shown in FIG. 5, the pins J1-25, the pins J1-26, the pins J1-43, and the pins J1-44 are respectively connected to the AUDIO module. As shown in FIG. 6, the pins J1-35, the pins J1-41, the pins J1-36, and the pins J1-42 are respectively and correspondingly connected to the OUTPUT selection switch of the CSDB signal interface switch module, and the pins J1-33, the pins J1-39, the pins J1-34, and the pins J1-40 are respectively and correspondingly connected to the INPUT selection switch of the CSDB signal interface switch module.

As shown IN FIG. 7, pins J1-52, J1-53, J1-60, and J1-29 are connected to respective HOLD switches on the tester main panel (i.e., CH1 HOLD IN, CH2 HOLD IN, CH1 HOLD OUT, and CH1 HOLD OUT on the tester main panel). As shown in FIG. 8, pins J1-48, J1-66, and J1-54 correspond to the inhibit switch and the DETECTED VIDEO interface. As shown in FIG. 9, the pins J1-45 to J1-50, J1-56, J1-57, J1-55, and J1-51 are respectively connected to a plurality of switches (including a data download ENABLE switch, a self test switch, a DME ON/STBY switch, a BURST TUNE ENABLE switch, a 429/CSDB TUNE SELECT switch, a DME 1/2SELECT switch, a WOW switch, and a TUNE SELECT switch). As shown in FIG. 10, pins J1-58 and J1-59 are connected to the power switch, respectively.

By adopting the technical scheme disclosed by the utility model, the following beneficial effects are obtained:

the utility model leads out all the test pins of the airborne distance measuring machine tester, designs the special test holes and is convenient for testing. For the discrete pins of the airborne distance measuring machine, the discrete pins are connected with different discrete points through different types of switches, the operation is simple and visual, and the test operation error is prevented through the ingenious connection design. The utility model simulates the connection of parts on the airplane, and is connected with the parts through the positioning pins and the professional connectors matched with the parts, thereby providing a good environment for the test of the parts, ensuring the stability and the safety of signals and power supply and reducing the damage to maintenance engineers and the parts. In addition, the utility model can realize the data communication between the airborne distance measuring machine and the external equipment through a special data interface, and the interface is designed with shielding grounding to filter external interference. And the signal control is carried out through the related switches, so that the signal receiving and sending are realized, and the operation is convenient.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements should also be considered within the scope of the present invention.

Claims (6)

1. An airborne rangefinder tester comprising a tester main panel, the tester main panel comprising a main connector J1, a CSDB signal interface module, an AUDIO module, an ARINC429 module and a discrete switch module, the main connector J1 being connected with an airborne rangefinder; the CSDB signal interface switch module comprises a selection switch and a signal testing hole; the AUDIO AUDIO module comprises an AUDIO switch and an AUDIO test hole; the ARINC429 module comprises a band switch and a bus test hole.

2. The airborne rangefinder tester as claimed in claim 1 wherein the discrete switch module comprises a plurality of analog discrete switches for respectively simulating discrete signals including a data load signal, a self test signal, a DME use and standby signal, a burst signal, a 429 and CSDB select signal, a WOW air-to-ground signal, a control box a select signal, a control box B select signal, a control box C select signal.

3. The airborne rangefinder tester as claimed in claim 1 wherein the signal test port, audio test port, and bus test port are each provided with a shield ground.

4. The airborne rangefinder tester of claim 1 wherein the tester main panel further comprises a power module, an indicator light, a voltage test hole, and a ground test hole, the power module comprising a power switch for controlling a power input; the indicator light is used for indicating whether an input power supply exists or not; the voltage test hole is used for monitoring voltage.

5. The airborne rangefinder tester as claimed in claim 4 wherein the power module is capable of over-current protection.

6. The airborne rangefinder tester of claim 1 wherein the tester main panel further comprises a kill switch for selecting an airborne rangefinder kill input and output, a BNC interface for sending and receiving signals, a channel switch, a channel indicator light, a channel test hole; the inhibition switch is used for selecting channel input holding, the channel indicator light is used for indicating channel output, and the channel test hole is used for testing input and output signals held by the channel.

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