CN213601101U - Test equipment for power supply controller of comprehensive instrument - Google Patents

Abstract

The utility model relates to a synthesize instrument electrical source controller test equipment. The test equipment of the comprehensive instrument power supply controller is used for testing parts of the comprehensive instrument power supply controller on an airplane and comprises part test equipment and a software test terminal, wherein the part test equipment is in communication connection with the software test terminal, the part test equipment comprises a voltage conversion module, a voltage and current detection module and a control module, and the control module, the voltage conversion module and the voltage and current detection module are in logic connection. The test equipment of the power supply controller of the comprehensive instrument is designed in an integrated mode, all the test equipment are integrated, a plurality of test equipment which need to be connected in the past are omitted, the operation is simple, and the test result is clear; meanwhile, manual operation is not needed, software is adopted for replacement, repeated testing can be carried out for a long time, and the occurrence probability of human errors is reduced.

Description

Test equipment for power supply controller of comprehensive instrument

Technical Field

The utility model relates to an avionics equipment testing technology field especially relates to a synthesize instrument electrical source controller test equipment.

Background

At present, when a power supply controller of an integrated instrument of an airplane is maintained, no special high-efficiency test equipment exists, so that the problems of complicated test, large quantity of test equipment, poor reliability 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 capable of testing the power supply controller of the aircraft comprehensive instrument is an urgent problem to be solved at present.

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.

Therefore, the utility model discloses an aim at provides a comprehensive instrument power supply controller test equipment.

In view of this, according to the utility model discloses an aim of the utility model provides an integrated instrument power supply controller test equipment for integrated instrument power supply controller part to the aircraft tests, including part test equipment and software test terminal, part test equipment with software test terminal communication links to each other, wherein, part test equipment includes voltage conversion module, voltage current detection module and control module, voltage conversion module, voltage current detection module logic links to each other.

The test equipment of the power supply controller of the comprehensive instrument is designed in an integrated mode, all the test equipment are integrated, a plurality of test equipment which need to be connected in the past are omitted, the operation is simple, and the test result is clear; meanwhile, manual operation is not needed, software is adopted for replacement, repeated testing can be carried out for a long time, and the occurrence probability of human errors is reduced.

In one embodiment, the voltage conversion module comprises a transformer, a rectifier bridge and 4 power supply regulation chips, a primary coil of the transformer is connected with an external mains voltage, a secondary coil of the transformer is respectively connected with the 4 power supply regulation chips through the rectifier bridge, and the 4 power supply regulation chips correspondingly output +5V, +9V, +12V, +14V direct-current voltages; the control module comprises a single-chip microcomputer control chip; the voltage and current detection module comprises a plurality of amplifying circuits and a plurality of current detection circuits, wherein each amplifying circuit comprises a bias voltage operational amplifier and each current detection circuit comprises a shunt current monitoring chip and a negative phase input end of the bias voltage operational amplifier, the positive phase input end and the negative phase input end of the bias voltage operational amplifier are connected with a test end of an external part to be tested through resistors, the output end of the bias voltage operational amplifier corresponds to an AD end of the single chip microcomputer control chip and is connected with the test end of the external part to be tested, and the output end of the shunt current monitoring chip corresponds to an IO end of the single chip microcomputer control chip and is connected with the test end of the single chip microcomputer control chip.

In one embodiment, the single-chip microcomputer control chip adopts an Arduino328 single-chip microcomputer control chip; the bias voltage operational amplifiers are all OP07 operational amplifiers; and a plurality of shunt current monitoring chips adopt INA138 current monitoring chips.

Drawings

FIG. 1 is a schematic diagram illustrating a connection relationship between modules in an apparatus for testing a power controller of an integrated instrument according to an 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 circuit diagram of the voltage conversion module of FIG. 1;

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

FIG. 5 is a schematic circuit diagram of the voltage-current detection module shown in FIG. 1;

fig. 6 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.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. In the description of the present invention, "a plurality" means at least one, e.g., one, two, etc., unless specifically limited otherwise.

Referring to fig. 1 and fig. 2, the embodiment provides a test device for a power supply controller of an integrated instrument, which is used for testing a component of the power supply controller of the integrated instrument on an aircraft, and includes a component test device and a software test terminal, wherein the component test device is in communication connection with the software test terminal, and is used for testing and connecting the component of the power supply controller of the integrated instrument; and the software testing terminal is used for setting parameters of the testing component, loading software and displaying a testing result. According to the embodiment, the single chip microcomputer can be used for kernel processing and control, and the automatic test of the parts of the power supply controller of the comprehensive instrument is realized through the part test equipment and the software test terminal.

Specifically, the component testing device comprises a voltage conversion module, a voltage and current detection module and a control module, wherein the control module is logically connected with the voltage conversion module and the voltage and current detection module.

The software testing terminal can adopt a software program commonly used by a person skilled in the art, specifically, the software program can comprise a parameter selection module, a data acquisition module and a display judgment module, the function of the power supply controller of the aircraft comprehensive instrument on the aircraft can be simulated through the software testing terminal, the functions of acquiring, coding, synthesizing, transmitting, decoding and multi-module communication of input and output signals of the power supply controller of the aircraft comprehensive instrument on the aircraft can be realized, and the simulation of the functions can be realized through each functional module provided by the software testing terminal. The parameter selection module is used for selecting corresponding test parameters, namely different input states of the communication channel and the panel; the data acquisition module is used for checking the voltage and the current input and output by the power supply controller of the aircraft comprehensive instrument, and the data is changed in real time and closely related to the input state; the display judging module loads different input signals according to the test, detects output signals on corresponding output pins, knows the fault condition and the fault position of the part according to the condition of the output signals, and then can maintain the power supply controller of the tested aircraft comprehensive instrument according to the fault condition and the fault position. Specifically, the control panel of the component testing apparatus provided in the present embodiment is shown in detail in fig. 6.

In one embodiment, referring to fig. 3, the voltage conversion module includes a transformer TR1, a rectifier bridge (diodes D4-D7), and 4 power conditioning chips (U2-U4, U10), a primary winding of the transformer TR1 is connected to an external mains voltage, a secondary winding of the transformer TR1 is connected to the 4 power conditioning chips through the rectifier bridge, and the 4 power conditioning chips correspondingly output +5V, +9V, +12V, +14V dc voltages; referring to fig. 4, the control module includes a single chip microcomputer control chip; referring to fig. 5, the voltage and current detection module includes a plurality of amplification circuits and a plurality of current detection circuits, wherein each amplification circuit includes a bias voltage operational amplifier (U7-U9), each current detection circuit includes a shunt current monitoring chip (U5 and U6), positive and negative input terminals of each bias voltage operational amplifier are correspondingly connected to a test terminal of an external device under test through a resistor, an output terminal of each bias voltage operational amplifier is correspondingly connected to an AD terminal of the single chip microcomputer control chip, an input terminal of each shunt current monitoring chip is correspondingly connected to a test terminal of the external device under test, and an output terminal of each shunt current monitoring chip is correspondingly connected to an IO terminal of the single chip microcomputer control chip. Specifically, the single chip microcomputer control chip adopts an Arduino328 single chip microcomputer control chip; the plurality of bias voltage operational amplifiers are all OP07 operational amplifiers; the INA138 current monitoring chip is adopted by each of the shunt current monitoring chips.

In this embodiment, the voltage conversion module is used for converting an external power supply standard ac voltage into a dc voltage required by other circuits in the test equipment, and is mainly implemented by components such as a transformer TR1, a rectifier bridge (diodes D4 to D7), and 4 power supply adjusting chips (U2 to U4, U10) in the circuit. The standard alternating voltage is reduced by a transformer TR1, then rectified into direct current voltage by a rectifier bridge (diodes D4-D7), and finally converted into required low direct current voltage by various power supply regulating chips (U2-U4 and U10). Other components such as capacitors and diodes can be arranged in the module, and the module plays roles in filtering, voltage stabilization, circuit protection and the like.

The voltage and current detection module is used for detecting relevant input and output parameter values of a component to be detected and is mainly realized by elements such as a bias voltage operational amplifier, a shunt current monitor chip and the like in a circuit. The bias voltage operational amplifier combines the resistor to form a corresponding amplifying circuit, and reduces the large voltage multiple in the circuit to a numerical value which can be detected by a single chip microcomputer control chip, so as to achieve the effect of detecting the voltage; the shunt current monitoring chip is combined with a resistor to form a corresponding current detection circuit, the resistor connected in series in the loop is also a shunt, the voltage values at two ends of the resistor are corresponding current values, and the voltage values are detected by the singlechip control chip.

The single chip microcomputer control module is used for controlling the rest modules, orderly collecting voltage and current, controlling functions and achieving the effect of being in communication connection with the software test terminal. The module realizes the data acquisition and function control in other modules and the communication with a software test terminal mainly through corresponding codes programmed in a single chip microcomputer.

The test equipment of the power supply controller of the comprehensive instrument 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, manual operation is not needed, software is adopted for replacement, repeated testing can be carried out for a long time, and the occurrence probability of human errors is reduced.

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 (3)

1. The utility model provides a comprehensive instrument power supply controller test equipment for comprehensive instrument power supply controller part to on the aircraft tests, its characterized in that, includes part test equipment and software test terminal, part test equipment with software test terminal communication links to each other, wherein, part test equipment includes voltage conversion module, voltage current detection module and control module, control module voltage conversion module voltage current detection module logic links to each other.

2. The instrumentation console power supply controller test equipment of claim 1, wherein said voltage conversion module comprises a transformer, a rectifier bridge and 4 power supply regulation chips, a primary coil of said transformer is connected to an external mains voltage, a secondary coil of said transformer is connected to 4 said power supply regulation chips through said rectifier bridge, 4 said power supply regulation chips correspondingly output +5V, +9V, +12V, +14V dc voltage; the control module comprises a single-chip microcomputer control chip; the voltage and current detection module comprises a plurality of amplifying circuits and a plurality of current detection circuits, wherein each amplifying circuit comprises a bias voltage operational amplifier and each current detection circuit comprises a shunt current monitoring chip and a negative phase input end of the bias voltage operational amplifier, the positive phase input end and the negative phase input end of the bias voltage operational amplifier are connected with a test end of an external part to be tested through resistors, the output end of the bias voltage operational amplifier corresponds to an AD end of the single chip microcomputer control chip and is connected with the test end of the external part to be tested, and the output end of the shunt current monitoring chip corresponds to an IO end of the single chip microcomputer control chip and is connected with the test end of the single chip microcomputer control chip.

3. The instrumentation combination power controller test equipment of claim 2, wherein said one-chip microcomputer control chip is an Arduino328 one-chip microcomputer control chip; the bias voltage operational amplifiers are all OP07 operational amplifiers; and a plurality of shunt current monitoring chips adopt INA138 current monitoring chips.

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