CN214201629U

CN214201629U - Test equipment for fast data/voice recorder

Info

Publication number: CN214201629U
Application number: CN202023351707.7U
Authority: CN
Inventors: 宗康乐; 康伟辉
Original assignee: Great Eagle Shenzhen Aviation Engineering Corp ltd
Current assignee: Great Eagle Shenzhen Aviation Engineering Corp ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-09-14
Anticipated expiration: 2030-12-31

Abstract

The utility model relates to a quick data/voice recorder test equipment. The rapid data/voice recorder testing equipment is used for testing rapid data/voice recorder components on an airplane and comprises component testing equipment and external equipment, wherein the component testing equipment is in communication connection with the external equipment, the component testing equipment comprises a signal acquisition module, a signal processing module, a signal output module and a data communication module, and the data communication module, the signal acquisition module, the signal output module and the signal processing module are in logical connection; the external equipment comprises a digital multimeter, a 429 transceiver, an oscilloscope and a direct current power supply. The test equipment of the rapid data/voice recorder adopts an integrated design, integrates all the test equipment together, cancels the need of accessing a plurality of test equipment in the past, and has simple operation and clear test result; meanwhile, the manual operation is simplified, the occurrence probability of human errors can be effectively reduced, and the maintenance period of the parts is effectively shortened.

Description

Test equipment for fast data/voice recorder

Technical Field

The utility model relates to an avionics equipment testing technique field especially relates to a quick data/voice recorder test equipment.

Background

At present, when a rapid data/voice recorder (WQAR) component is maintained, no special and systematic testing equipment exists, so that the problems of long maintenance period, complex testing and the like are caused, the problems cause flight delay and service quality reduction of an airline company, and the economic benefit of the airline company is directly influenced. Therefore, developing a device that can test the WQAR components has become an urgent problem to be solved.

SUMMERY OF THE UTILITY MODEL

The present invention aims at least solving one of the technical problems existing in the prior art or the related art.

To this end, an object of the present invention is to provide a fast data/voice recorder testing device.

In view of the above, according to an object of the present invention, the present invention provides a fast data/voice recorder testing device for testing fast data/voice recorder components on an aircraft, comprising a component testing device and an external device, wherein the component testing device is communicatively connected to the external device, wherein the component testing device comprises a signal acquisition module, a signal processing module, a signal output module and a data communication module, and the data communication module, the signal acquisition module, the signal output module and the signal processing module are logically connected; the external equipment comprises a digital universal meter, a 429 transceiver, an oscilloscope and a direct-current power supply.

The test equipment of the rapid data/voice recorder adopts an integrated design, integrates all the test equipment together, cancels the need of accessing a plurality of test equipment in the past, and has simple operation and clear test result; meanwhile, the manual operation is simplified, the occurrence probability of human errors can be effectively reduced, and the maintenance period of the parts is effectively shortened.

In one embodiment, the signal acquisition module comprises 2 comparison circuits, a logic gate circuit and a latch circuit; the signal processing module comprises a micro control chip; the signal output module comprises 2 amplifying circuits; the data communication module comprises an RS232 transceiving circuit and an RS232 interface circuit, wherein,

the input end of 2 comparison circuits is correspondingly connected with 2 groups of arinc429 signal ends output by the rapid data/voice recorder component, the output end of one comparison circuit is connected with the input end of the logic gate circuit, the output end of 2 comparison circuits is correspondingly connected with the input end of the latch circuit, the input end of the micro control chip is respectively connected with the output end of the logic gate circuit and the output end of the latch circuit, one output end of the micro control chip is connected with external equipment through the RS232 interface circuit and the RS232 transceiver circuit, and the other output end of the micro control chip is correspondingly connected with 2 amplification circuits.

In one embodiment, the comparison circuit comprises an LM339AD voltage comparison chip; the logic gate circuit comprises a 74LVC2G32 dual-channel OR gate chip; the latch circuit comprises an MC14043BD RS latch; the micro-control chip adopts a NUC123LxxANx micro-control chip; the amplifying circuit comprises an operational amplifier and a bipolar triode; the RS232 transceiver circuit comprises an ADM3251E transceiver chip; the RS232 interface circuit comprises a MAX232ACSE interface chip.

Drawings

FIG. 1 is a schematic diagram illustrating the connection between modules in the test equipment of the fast data/voice recorder in one embodiment;

FIG. 2 is a schematic diagram of the connection of modules in the device testing apparatus of FIG. 1;

FIG. 3 is a schematic diagram of a circuit of the signal acquisition module of FIG. 1;

FIG. 4 is a schematic circuit diagram of the signal processing module of FIG. 1;

FIG. 5 is a schematic circuit diagram of the signal output module of FIG. 1;

FIG. 6 is a schematic circuit diagram of the data communication module of FIG. 1;

fig. 7 is a schematic diagram of a control panel structure of the device testing apparatus of fig. 1.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1 and 2, the present embodiment provides a fast data/voice recorder testing device for testing a fast data/voice recorder (WQAR) component on an aircraft, including a component testing device and an external device, the component testing device being communicatively connected to the external device, wherein the component testing device is configured to detect the WQAR component, and the external device is configured to detect and display output parameters of the WQAR component.

Furthermore, the component test equipment comprises a signal acquisition module, a signal processing module, a signal output module and a data communication module, wherein the data communication module is logically connected with the signal acquisition module, the signal output module and the signal processing module, and can define each interface in the equipment so that the WQAR component test equipment interacts with external equipment; the external equipment comprises a digital multimeter, a 429 transceiver, an oscilloscope and a direct current power supply. The embodiment can realize the test of the WQAR component by combining the signal acquisition module, the signal processing module, the signal output module and the data communication module and the external equipment.

Referring to fig. 3, the signal acquisition module includes 2 comparison circuits, a logic gate circuit and a latch circuit; referring to fig. 4, the signal processing module includes a micro control chip; referring to fig. 5, the signal output module includes 2 amplifying circuits; referring to fig. 6, the data communication module includes an RS232 transceiver circuit and an RS232 interface circuit, wherein the input terminals of 2 comparison circuits are correspondingly connected to 2 sets of arinc429 signal terminals output by the fast data/voice recorder component, the output terminal of one comparison circuit is connected to the input terminal of the logic gate circuit, the output terminals of 2 comparison circuits are correspondingly connected to the input terminal of the latch circuit, the input terminal of the micro control chip is respectively connected to the output terminals of the logic gate circuit and the latch circuit, one output terminal of the micro control chip is connected to the external device through the RS232 interface circuit and the RS232 transceiver circuit, and the other output terminal of the micro control chip is correspondingly connected to 2 amplification circuits.

Specifically, the comparison circuit comprises an LM339AD voltage comparison chip (U1A-U1D); the logic gate circuit comprises a 74LVC2G32 dual-channel OR gate chip (U3A); the latch circuit includes an MC14043BD RS latch (U5); the micro-control chip adopts a NUC123LxxANx micro-control chip (U6); the amplifying circuit comprises operational amplifiers (U2A-U2D) and bipolar triodes (Q1-Q4); the RS232 transceiver circuit comprises an ADM3251E transceiver chip (U8); the RS232 interface circuit comprises a MAX232ACSE interface chip (U7).

In this embodiment, the signal acquisition module is used to acquire arinc429 signal of WQAR, and is mainly implemented by a comparison chip, or gate chip and latch. The arinc429 signal output by the WQAR screens out a proper signal through a comparison chip or a gate chip, and finally, the signal is cached through a latch to maintain a corresponding level state, so that the purpose of signal acquisition is achieved. Other components such as resistors and capacitors are arranged in the module, and the functions of filtering, voltage stabilization, circuit protection and the like are achieved.

The signal processing module is used for processing data in an ARINC717 format and is mainly realized by a microcontroller chip. The arinc429 signal collected by the signal collection module is connected to each functional pin of the microcontroller chip through a circuit, and the signal is processed and output through the chip. Other components such as resistors and capacitors are further arranged in the module, and the functions of filtering, voltage stabilization, circuit protection and the like are achieved.

The signal output module is used for outputting data in ARINC717 data format in BIPOLAR format for testing the data receiving and storing functions of WQAR. The main design is realized by an operational amplifier and a bipolar transistor. The operational amplifier and the bipolar transistor form an amplifying circuit, the amplifying circuit carries out multistage amplification, and the weak signal processed by the signal processing module is amplified to a required numerical value without distortion and then output. Other components such as resistors and capacitors are arranged in the module, and the functions of filtering, voltage stabilization, circuit protection and the like are achieved.

The data communication module is used for communicating with the component to be tested, reading related data and achieving the purpose of confirming the state of the component. The method is mainly realized through an RS232 interface chip, an RS232 transceiver chip, a capacitor and the like. The RS232 interface chip defines an interface and identifies an external RS232 signal; and the RS232 transceiver chip receives the identified signal and sends the signal to peripheral equipment, so that the purpose of communicating with the component to be tested is achieved.

The specific circuit tests the data acquisition function of the WQAR by generating standard ARINC717 data, and reads the state of the WQAR through a serial port (RS232) to complete the test function. Specifically, the control panel of the component testing apparatus provided in the present embodiment is shown in detail in fig. 7.

The test equipment of the rapid data/voice recorder provided by the embodiment adopts an integrated design, integrates all the test equipment together, cancels the need of accessing a plurality of test equipment in the past, and has simple operation and clear test result; meanwhile, the manual operation is simplified, the occurrence probability of human errors can be effectively reduced, and the maintenance period of the parts is effectively shortened.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A kind of fast data/voice recorder test equipment, is used for testing the fast data/voice recorder part on the plane, characterized by that, including part test equipment and external device, the said part test equipment communicates with said external device and links, wherein, the said part test equipment includes signal acquisition module, signal processing module, signal output module and data communication module, the said signal acquisition module, the said signal output module, the said signal processing module logic links; the external equipment comprises a digital universal meter, a 429 transceiver, an oscilloscope and a direct-current power supply.

2. The fast data/voice recorder test device according to claim 1, wherein the signal acquisition module comprises 2 comparison circuits, a logic gate circuit and a latch circuit; the signal processing module comprises a micro control chip; the signal output module comprises 2 amplifying circuits; the data communication module comprises an RS232 transceiving circuit and an RS232 interface circuit, wherein,

3. The fast data/voice recorder test device according to claim 2, wherein the comparison circuit comprises an LM339AD voltage comparison chip; the logic gate circuit comprises a 74LVC2G32 dual-channel OR gate chip; the latch circuit comprises an MC14043BD RS latch; the micro-control chip adopts a NUC123LxxANx micro-control chip; the amplifying circuit comprises an operational amplifier and a bipolar triode; the RS232 transceiver circuit comprises an ADM3251E transceiver chip; the RS232 interface circuit comprises a MAX232ACSE interface chip.