CN116298627A - Automatic test system for high-low temperature environment test of avionics stand-alone machine - Google Patents
Automatic test system for high-low temperature environment test of avionics stand-alone machine Download PDFInfo
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- CN116298627A CN116298627A CN202310266148.9A CN202310266148A CN116298627A CN 116298627 A CN116298627 A CN 116298627A CN 202310266148 A CN202310266148 A CN 202310266148A CN 116298627 A CN116298627 A CN 116298627A
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- 238000004891 communication Methods 0.000 description 8
- 238000012544 monitoring process Methods 0.000 description 8
- 230000017525 heat dissipation Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The application discloses an automatic test system for avionics unit high low temperature environment test includes: the system comprises an automatic tester, a PC end provided with control software, a high-low temperature test box, a plurality of tested devices and a mains supply; the automatic tester is respectively communicated with the PC end and the high-low temperature test box; the automatic tester is respectively connected with a mains supply and a plurality of tested devices; the mains supply is also connected with the high-low temperature test box and the PC end respectively; control software: for sending control instructions to an automated tester, wherein the control instructions comprise: a power supply control instruction and a high-low temperature test box control instruction; the automatic tester controls power equipment connected with the tested equipment in the automatic tester according to the power control instruction; and the automatic tester controls the high-low temperature test box according to the control instruction of the high-low temperature test box. According to the remote control system and the remote control method, the high-low temperature test box and the power module can be remotely controlled through the transmission protocol and the control software, and remote automatic testing is achieved.
Description
Technical Field
The application relates to the technical field of high-low temperature test devices of avionics single machine products, in particular to an automatic test system for high-low temperature environment test of avionics single machine.
Background
In recent years, electronic products are endlessly layered, and the quality of the electronic products is required to be too hard by the vigorous competition among products, so that enterprises want to win in competition and must pass a certain environmental reliability test before the electronic products leave the factory, so that the product quality of the electronic products is ensured, and particularly, the electronic products with extremely high requirements on reliability are obtained. The carrier rocket avionics system consists of a single unit, the reliability of the single unit is closely connected with the reliability of the carrier rocket overall system, and the high-low temperature environment test is an important ring of the reliability environment test of single unit equipment. The high-low temperature test of the traditional single avionics equipment before delivery is mostly independently powered and tested, and the high-low temperature test device for the avionics single product adopting the traditional scheme has the following defects:
1. in the mass production stage of products, when tested equipment is increased, the testing equipment, the testing environment and the testing process are more complicated, the testing efficiency is low, the automation degree is low, and the labor cost is higher.
2. The environment test site is required to be close to the high-low temperature incubator, and the operation complexity of the single machine environment test process is increased by manually operating the high-low temperature incubator, a plurality of test devices and other devices, so that the reliability is low and errors are easy to occur.
3. In the testing process, a plurality of testers are required to monitor each device on site all the time, automatic testing cannot be achieved, and labor cost is high.
4. In the testing process, a tester needs to be placed on an environmental test site with noisy environment for a long time, and the work such as switching on and off operation is performed repeatedly and fussy, so that the hearing, psychological and other physical and psychological health of the tester can be damaged.
Disclosure of Invention
The utility model aims at providing an automatic test system for aviation electric stand-alone high low temperature environment test can carry out remote control to high low temperature test box and power module through transmission protocol and control software, realizes temperature setting, the monitoring of high low temperature test box and the switch electricity operation, voltage current setting and the data monitoring of the equipment that is surveyed, has realized long-range automatic test.
In order to achieve the above objective, the present application provides an automated testing system for high and low temperature environment test of an avionics stand-alone, comprising: the system comprises an automatic tester, a PC end provided with control software, a high-low temperature test box, a plurality of tested devices and a mains supply; the automatic tester is respectively communicated with the PC end and the high-low temperature test box; the automatic tester is respectively connected with a mains supply and a plurality of tested devices; the mains supply is also connected with the high-low temperature test box and the PC end respectively; control software: for sending control instructions to an automated tester, wherein the control instructions comprise: a power supply control instruction and a high-low temperature test box control instruction; the automatic tester controls power equipment connected with the tested equipment in the automatic tester according to the power control instruction; and the automatic tester controls the high-low temperature test box according to the control instruction of the high-low temperature test box.
As above, wherein the automated tester further comprises: a control device; the power supply equipment is respectively connected with a mains supply and a plurality of tested equipment; the control equipment is connected with a mains supply; the control equipment is respectively communicated with the PC end, the power supply equipment and the high-low temperature test box; the control equipment receives the control instruction, controls the power supply equipment according to the power supply control instruction, and controls the high-low temperature test box according to the high-low temperature test box control instruction.
As above, wherein the power supply device includes: at least 10 power modules, each power module is connected with a mains supply, each power module is communicated with the control equipment, and one power module is connected with one tested equipment.
As above, the power module is an intelligent precise numerical control small power module.
As above, wherein the control device at least comprises: a control board and an AC/DC power module; the control board is respectively communicated with the PC end, each power module and the high-low temperature test chamber; the control board receives the control instruction, controls each power module according to the power control instruction, and controls the high-low temperature test box according to the control instruction of the high-low temperature test box; the AC/DC power module is respectively connected with a mains supply and a control board.
As above, the control board communicates with the PC side through the RS422 protocol.
As above, wherein the control board communicates with the power module via the RS232 protocol.
As above, wherein the control board communicates with the high and low temperature test chambers via the RS232 protocol.
As above, the power control instruction at least includes: a voltage setting sub-command, a current setting sub-command, a power display sub-command, a power error fine tuning sub-command and an error reporting feedback sub-command.
As above, the high-low temperature test chamber control command at least includes: a switch electronic command, a high-low temperature setting sub-command, a temperature holding time setting sub-command, and a one-key printing sub-command.
The beneficial effects realized by the application are as follows:
(1) The automatic test system for the avionics stand-alone high-low temperature environment test has high integration level, is automatic and intelligent, can greatly reduce the complexity of the test environment and the test flow of the high-low temperature environment test, and reduces the cost of test equipment and the cost of manpower.
(2) The high-low temperature test box and the power module are remotely controlled through the serial port data transmission protocol and the control software, and the temperature setting and monitoring of the high-low temperature test box, the switching-on and switching-off operation, voltage and current setting and monitoring and other operations of the tested equipment are realized.
(3) The automatic test system for the high-low temperature environment test of the avionics stand-alone has the technical effects of simple system, high efficiency, high cost performance and capability of realizing cost reduction and synergy.
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In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following description will briefly introduce the drawings that are required to be used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings may also be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic diagram of an embodiment of an automated test system for high and low temperature environmental testing of an avionics stand-alone;
fig. 2 is a schematic diagram of serial level conversion of a control board.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-2, the present application provides an automated test system for high and low temperature environmental testing of an avionics stand-alone, comprising: the system comprises an automatic tester, a PC end provided with control software, a high-low temperature test box, a plurality of tested devices and a mains supply. The automatic tester is respectively communicated with the PC end and the high-low temperature test box. The automatic tester is respectively connected with a mains supply and a plurality of tested devices. The mains supply is also connected with the high-low temperature test box and the PC terminal respectively. Control software: for sending control instructions to an automated tester, wherein the control instructions comprise: a power supply control instruction and a high-low temperature test box control instruction; the automatic tester controls power equipment connected with the tested equipment in the automatic tester according to the power control instruction; and the automatic tester controls the high-low temperature test box according to the control instruction of the high-low temperature test box.
Specifically, the automatic tester and the PC (host computer) may be in close-range communication or remote communication, which is preferred in the present application. The automatic tester and the high-low temperature test box can be in close-range communication or remote communication, and the application is preferably in remote communication. Therefore, workers do not need to sit on an environmental test site with noisy environment for a long time, the workers sit on an office station and can control an automatic test system of an environmental test room by sending corresponding control instructions through control software at a PC end, high-low temperature environmental tests are carried out, automatic tests and data monitoring are realized, and a plurality of testers are not required to constantly monitor each device on site in the test process, so that the labor cost is effectively reduced. The high-low temperature test box can be realized by adopting the existing mature product.
Further, the automated tester further comprises: and a control device. Wherein the power supply device is connected with a mains supply and a plurality of devices under test, respectively. The control equipment is connected with a mains supply; the control equipment is respectively communicated with the PC end, the power supply equipment and the high-low temperature test box. The control equipment receives the control instruction, controls the power supply equipment according to the power supply control instruction, and controls the high-low temperature test box according to the high-low temperature test box control instruction.
Specifically, the mains supply is 220V.
Further, the power supply apparatus includes: at least 10 power modules, each power module is connected with a mains supply, each power module is communicated with the control equipment, and one power module is connected with one tested equipment.
Further, the power module is an intelligent precise numerical control small power module, but is not limited to the intelligent precise numerical control small power module, and the intelligent precise numerical control small power module is preferred.
Specifically, the power supply module (power supply sections PW1 to PW10 shown in fig. 1) has an RS232 serial port communication function, and communicates with the control device via an RS232 protocol. The power module can be programmed according to actual requirements, and the built-in standard MODBUS communication protocol enables the power to be more easily integrated into an automatic test system. The utility power supply provides 220V voltage for each power module, the control equipment regulates and controls the parameters or functions of each power module through the power control instruction, the power module supplies power to the tested equipment according to the regulated and controlled parameters, and the power module has the advantages of overvoltage protection, overcurrent protection and short-circuit protection and good stability. The independent intelligent precise numerical control small power supply module can be realized by adopting the existing mature product, thereby reducing the hardware customization cost and improving the equipment reliability.
The parameters at least comprise: voltage, current, temperature drift and accuracy.
Wherein, the range of the parameters after regulation is: the maximum voltage setting range is 0-36V; the maximum setting range of the current is 0-3A; the temperature drift is less than 50ppm; the precision can reach 0.1%, the resolution is high, can reach V=10mV, and I=1mA.
Further, the control device at least includes: control board and AC/DC power module. The control board is respectively communicated with the PC end, each power module and the high-low temperature test chamber; the control board receives the control instruction, controls each power module according to the power control instruction, and controls the high-low temperature test box according to the control instruction of the high-low temperature test box. The AC/DC power module is respectively connected with a mains supply and a control board.
Specifically, the control board mainly comprises an FPGA, flash, a power chip, a crystal oscillator, a temperature sensor and a serial port conversion chip. The mains supply provides 220V to the AC/DC power module, which provides 24V to the control board.
Further, the control board communicates with the PC end through the RS422 protocol, but not limited to the RS422 protocol, the application is preferably the RS422 protocol, the communication distance is relatively long, remote one-key control between different floors can be achieved, a worker can control an automatic test system of an environmental laboratory by sitting at an office station, high-low temperature environment tests are conducted, and automatic tests and monitoring are achieved.
Further, the control board communicates with the power module through RS232 protocol, but is not limited to RS232 protocol, which is preferred in the present application.
Further, the control board communicates with the high and low temperature test chamber through the RS232 protocol, but is not limited to the RS232 protocol, and the RS232 protocol is preferred in the application.
Further, the power control instruction at least includes: a voltage setting sub-command, a current setting sub-command, a power display sub-command, a power error fine tuning sub-command and an error reporting feedback sub-command.
Specifically, the voltage setting sub-command: for setting a specific value of the voltage output from the power module. Current setting sub-instructions: for setting a specific value of the current output by the power supply module. Power display sub-instruction: for displaying the power of the power supply module. Power error fine tuning sub-command: for fine tuning the error of the power supply module. Error feedback sub-instruction: for error reporting feedback.
Further, the control instruction of the high-low temperature test chamber at least comprises: a switch electronic command, a high-low temperature setting sub-command, a temperature holding time setting sub-command, and a one-key printing sub-command.
Specifically, the switch electronic command: for switching on or off. High-low temperature setting sub-instruction: for setting specific values of temperature. Temperature hold time setting sub-instruction: for setting the length of the temperature holding time. One-key print sub-instruction: for one-key printing of data records and test reports.
Further, the automated tester further comprises: a heat dissipating device; the heat dissipation device is connected with a mains supply; the heat dissipation device is communicated with the control board, and the control board receives a heat dissipation control instruction sent by the PC end and controls the heat dissipation device according to the heat dissipation control instruction.
The automatic test system for the high-low temperature environment test of the avionics stand-alone machine can be used for not only the high-low temperature environment test, but also a switching test (for example, 10 test devices are simultaneously and continuously switched on and off for 500 times), test and verify the power-on initialization starting and reliability of the device design, save the traditional and complicated operation, liberate manpower and realize automatic intelligent test.
The beneficial effects realized by the application are as follows:
(1) The automatic test system for the avionics stand-alone high-low temperature environment test has high integration level, is automatic and intelligent, can greatly reduce the complexity of the test environment and the test flow of the high-low temperature environment test, and reduces the cost of test equipment and the cost of manpower.
(2) The high-low temperature test box and the power module are remotely controlled through the serial port data transmission protocol and the control software, and the temperature setting and monitoring of the high-low temperature test box, the switching-on and switching-off operation, voltage and current setting and monitoring and other operations of the tested equipment are realized.
(3) The automatic test system for the high-low temperature environment test of the avionics stand-alone has the technical effects of simple system, high efficiency, high cost performance and capability of realizing cost reduction and synergy.
While preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the scope of the present application be interpreted as including the preferred embodiments and all alterations and modifications that fall within the scope of the present application. It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the protection of the present application and the equivalents thereof, the present application is intended to cover such modifications and variations.
Claims (10)
1. An automated test system for high and low temperature environmental testing of an avionics stand-alone machine, comprising: the system comprises an automatic tester, a PC end provided with control software, a high-low temperature test box, a plurality of tested devices and a mains supply;
the automatic tester is respectively communicated with the PC end and the high-low temperature test box;
the automatic tester is respectively connected with a mains supply and a plurality of tested devices;
the mains supply is also connected with the high-low temperature test box and the PC end respectively;
control software: for sending control instructions to an automated tester, wherein the control instructions comprise: a power supply control instruction and a high-low temperature test box control instruction; the automatic tester controls power equipment connected with the tested equipment in the automatic tester according to the power control instruction; and the automatic tester controls the high-low temperature test box according to the control instruction of the high-low temperature test box.
2. The automated test system for high and low temperature environmental testing of an avionics stand-alone of claim 1, wherein the automated tester further comprises: a control device;
the power supply equipment is respectively connected with a mains supply and a plurality of tested equipment;
the control equipment is connected with a mains supply; the control equipment is respectively communicated with the PC end, the power supply equipment and the high-low temperature test box;
the control equipment receives the control instruction, controls the power supply equipment according to the power supply control instruction, and controls the high-low temperature test box according to the high-low temperature test box control instruction.
3. An automated test system for high and low temperature environmental testing of an avionics stand-alone as defined in claim 2, wherein the power supply device comprises: at least 10 power modules, each power module is connected with a mains supply, each power module is communicated with the control equipment, and one power module is connected with one tested equipment.
4. The automated test system for high and low temperature environmental testing of an avionics stand-alone unit of claim 3, wherein the power module is an intelligent precision numerical control small power module.
5. The automated test system for high and low temperature environmental testing of an avionics stand-alone of claim 4, wherein the control device comprises at least: a control board and an AC/DC power module;
the control board is respectively communicated with the PC end, each power module and the high-low temperature test chamber; the control board receives the control instruction, controls each power module according to the power control instruction, and controls the high-low temperature test box according to the control instruction of the high-low temperature test box;
the AC/DC power module is respectively connected with a mains supply and a control board.
6. The automated test system for high and low temperature environmental testing of an avionics stand-alone of claim 5, wherein the control board communicates with the PC side via RS422 protocol.
7. The automated test system of claim 6, wherein the control board communicates with the power module via an RS232 protocol.
8. The automated test system of claim 7, wherein the control board communicates with the high and low temperature test chambers via an RS232 protocol.
9. The automated test system for high and low temperature environmental testing of an avionics stand-alone of claim 8, wherein the power control instructions comprise at least: a voltage setting sub-command, a current setting sub-command, a power display sub-command, a power error fine tuning sub-command and an error reporting feedback sub-command.
10. The automated test system for high and low temperature environmental testing of an avionics stand-alone of claim 9, wherein the high and low temperature test chamber control instructions comprise at least: a switch electronic command, a high-low temperature setting sub-command, a temperature holding time setting sub-command, and a one-key printing sub-command.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310266148.9A CN116298627A (en) | 2023-03-14 | 2023-03-14 | Automatic test system for high-low temperature environment test of avionics stand-alone machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310266148.9A CN116298627A (en) | 2023-03-14 | 2023-03-14 | Automatic test system for high-low temperature environment test of avionics stand-alone machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116609661A (en) * | 2023-07-14 | 2023-08-18 | 西安创联超声技术有限责任公司 | Automatic calibration method, electronic equipment and readable storage medium |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116609661A (en) * | 2023-07-14 | 2023-08-18 | 西安创联超声技术有限责任公司 | Automatic calibration method, electronic equipment and readable storage medium |
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