CN202854603U

CN202854603U - Aircraft zone temperature controller automatic simulation testing system

Info

Publication number: CN202854603U
Application number: CN 201220484916
Authority: CN
Inventors: 翟安恒; 李卓
Original assignee: SHANDONG XIANGYU AVIATION TECHNOLOGY SERVICES Co Ltd
Current assignee: SHANDONG XIANGYU AVIATION TECHNOLOGY SERVICES Co Ltd
Priority date: 2012-09-21
Filing date: 2012-09-21
Publication date: 2013-04-03
Anticipated expiration: 2022-09-21

Abstract

The utility model relates to an aircraft zone temperature controller automatic simulation testing system which comprises a computer and a testing device which is connected with the computer. The aircraft zone temperature controller automatic simulation testing system is characterized in that: the testing device comprises an FPGA control circuit, an I/O interface circuit, an automatic measuring circuit and a working environment simulation circuit, and the FPGA control circuit is connected with a discrete switch circuit and the automatic measuring circuit. According to the aircraft zone temperature controller automatic simulation testing system, the automatic control and automatic measurement technology is employed, through controlling a tested component, all needed parameters in a testing process are automatically completed, testing software is read, comparison and conversion are carried out through the software, a testing result is obtained and printed to a man-machine interface, thus a testing process is simple and easy, the working efficiency is raised, the testing result is accurate, and manpower cost and time cost are saved.

Description

A kind of aircraft area temperature controller automatic analog test system

Technical field

The utility model relates to aircraft automatic analog test field, specifically, relates to a kind of aircraft area temperature controller automatic analog test system.

Background technology

Area temperature controller (English name Pack/zone Temperature Controller) is installed on the Boeing 737 airplane, be used for controlling whole air-conditioning system, realizing the temperature control and adjusting of driving cabin, main cabin, front and back, freight house, is the important component part of aircraft air-conditioning system.The test condition of area temperature controller is complicated, need a large amount of fine resistive elements to carry out the simulation of component working environment, the test system structure that the former factory of HONEYWELL produces is complicated, it all is manual test, it is very inconvenient to operate, and 20 time-limited operations are arranged in test process nearly, and (restriction reset operation process was finished in 2 minutes, need repeatedly to move more than ten Test Switchboards in 2 minutes), if operation overtime, test crash then, all very high to the requirement of worker's dexterity and operative skill, and also whole test process is longer, if manual test probably needs 5-8 hour, work efficiency is low.This is the deficiencies in the prior art part.

Summary of the invention

The technical problems to be solved in the utility model provides a kind of aircraft area temperature controller automatic analog test system, allows test process become simple, has improved work efficiency, and test result is accurate, has saved human cost and time cost.

[0004]A kind of aircraft area temperature controller automatic analog test system, comprise computing machine and connected testing apparatus, it is characterized in that: described testing apparatus comprises FPGA control circuit, I/O interface circuit, automatic measurement circuit and working environment mimic channel, and described FPGA control circuit connects discrete switch circuit and described automatic measurement circuit; FPGA control circuit receiving computer sends order, through after decoding, computing and the Error detection, accurately control discrete signal output, finish the control to the discrete magnitude switch, what directly link to each other with it is the discrete switch circuit, the I/O interface circuit provides interconnecting channel for unit under test afterbody joint and testing apparatus, realizes that the fully coupling between unit under test and the testing apparatus connects, and all I/O signals all carry out I/O by the I/O interface circuit; Automatic measurement circuit is measured resistance, voltage, frequency, the current parameters of unit under test automatically by FPGA control circuit control, and test data is transferred to computing machine by the RS232 communication port carries out calculation process; The working environment mimic channel is comprised of one group of precision resistance, switch, pot and discharge circuit.

As the further restriction to the technical program, described FPGA control circuit comprises USB control chip and fpga chip, described USB control chip is decoded to the computer control instruction that receives, described fpga chip carries out computing and Error detection to decoded signal, accurately control discrete signal output, finish the control to the discrete magnitude switch.

Compared with prior art, advantage of the present utility model and good effect are: the utility model adopts automatically control and automatic measurement technology, automatically finish needed all parameters in the test process by the control unit under test, and read in testing software, and compare and convert by software, draw test result and print to man-machine interface, allow test process become simple, improved work efficiency, test result is accurate, has saved human cost and time cost.

Description of drawings

Fig. 1 is functional-block diagram of the present utility model.

Embodiment

Below in conjunction with accompanying drawing and preferred embodiment the utility model is done further to describe in detail.

Referring to Fig. 1, the utility model comprises computing machine and connected testing apparatus, described testing apparatus comprises FPGA control circuit, I/O interface circuit, automatic measurement circuit and working environment mimic channel, and described FPGA control circuit connects discrete switch circuit and described automatic measurement circuit; FPGA control circuit receiving computer sends order, through after decoding, computing and the Error detection, accurately control discrete signal output, finish the control to the discrete magnitude switch, what directly link to each other with it is the discrete switch circuit, mainly finishes the switching of unit under test internal discrete amount and the passage handoff functionality between unit under test and the test instrumentation; The I/O interface circuit provides interconnecting channel for unit under test afterbody joint and testing apparatus, realizes that the fully coupling between unit under test and the testing apparatus connects, and all I/O signals all carry out I/O by the I/O interface circuit; Automatic measurement circuit is measured resistance, voltage, frequency, the current parameters of unit under test automatically by FPGA control circuit control, and test data is transferred to computing machine by the RS232 communication port carries out calculation process; The working environment mimic channel is comprised of one group of precision resistance, switch, pot and discharge circuit, and the system environments that is connected with unit under test on the main simulated aircraft allows unit under test in the situation that breaks away from aircraft, realize the workshop test.

Described FPGA control circuit comprises USB control chip and fpga chip, described USB control chip is decoded to the computer control instruction that receives, described fpga chip carries out computing and Error detection to decoded signal, accurately control discrete signal output, finish the control to the discrete magnitude switch.

Certainly; above-mentioned explanation is not limitation of the utility model; the utility model also is not limited only to above-mentioned giving an example, and the variation that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement also belong to protection domain of the present utility model.

Claims

1. aircraft area temperature controller automatic analog test system, comprise computing machine and connected testing apparatus, it is characterized in that: described testing apparatus comprises FPGA control circuit, I/O interface circuit, automatic measurement circuit and working environment mimic channel, and described FPGA control circuit connects discrete switch circuit and described automatic measurement circuit; FPGA control circuit receiving computer sends order, through after decoding, computing and the Error detection, accurately controls discrete signal output, finishes the control to the discrete magnitude switch, and what directly link to each other with it is the discrete switch circuit; The I/O interface circuit provides interconnecting channel for unit under test afterbody joint and testing apparatus, realizes that the fully coupling between unit under test and the testing apparatus connects, and all I/O signals all carry out I/O by the I/O interface circuit; Automatic measurement circuit is measured resistance, voltage, frequency, the current parameters of unit under test automatically by FPGA control circuit control, and test data is transferred to computing machine by the RS232 communication port carries out calculation process; The working environment mimic channel is comprised of one group of precision resistance, switch, pot and discharge circuit.

2. aircraft area temperature controller automatic analog test according to claim 1 system, it is characterized in that: described FPGA control circuit comprises USB control chip and fpga chip, described USB control chip is decoded to the computer control instruction that receives, described fpga chip carries out computing and Error detection to decoded signal, accurately control discrete signal output, finish the control to the discrete magnitude switch.