CN112462735A - Universal automatic test system for environment control unit - Google Patents
Universal automatic test system for environment control unit Download PDFInfo
- Publication number
- CN112462735A CN112462735A CN202011252983.XA CN202011252983A CN112462735A CN 112462735 A CN112462735 A CN 112462735A CN 202011252983 A CN202011252983 A CN 202011252983A CN 112462735 A CN112462735 A CN 112462735A
- Authority
- CN
- China
- Prior art keywords
- test
- module
- control units
- environmental control
- programmable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0224—Process history based detection method, e.g. whereby history implies the availability of large amounts of data
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24065—Real time diagnostics
Abstract
The invention discloses a universal automatic test system for a ring control unit, which comprises a test and control computer, an Ethernet switch, a CAN module, a programmable resistance box, a programmable power supply pack and test software, wherein the programmable resistance box and the programmable power supply pack are respectively in communication connection with the Ethernet switch; controlling the programmable resistance box and the programmable power supply set to simulate and generate input signals of various working conditions through network communication based on test software, and automatically testing the environment control unit and generating a test report; different input signals are configured through test software, and the like are tested on the similar product environment control units with different models; the invention shortens the test time of the single set of the environmental control units by 80 percent, avoids the artificial error of input signals, standardizes the test process, improves the test precision and the production efficiency, meets the batch production requirement of the environmental control units, is favorable for obtaining great success in commerce and the like.
Description
Technical Field
The invention relates to the field of automatic test of electronic equipment, in particular to a universal automatic test system for an environmental control unit.
Background
The environment control unit is one of important components of the airborne electronic equipment, provides environment control cooling conditions for the airborne electronic equipment, ensures that the temperature of the equipment is controlled within an allowable range, improves the reliability and environmental adaptability of the equipment, and fully exerts the capability of the electronic equipment. The air-conditioning system consists of an air refrigerating system, a liquid circulation system and a parameter control system.
The working principle of the environment control unit is as follows: the environmental control computer of the parameter control system measures the inlet temperature, outlet temperature and liquid level of the turbine in the refrigerating system and the temperature, liquid level and hydraulic information of the liquid in the liquid circulation system through the sensors. The output of the temperature sensor is a resistance signal, the resistance signal is converted into a voltage signal through a Wheatstone bridge, the voltage signal is processed by a signal processing circuit, and the voltage signal is converted into a standard 0-5V voltage analog quantity; the liquid level and hydraulic pressure sensors output voltage signals. These voltage signals are fed into the analog input channel of the ring control computer. After the ring control computer collects the voltage analog quantity, the external accurate information is obtained by processing such as software filtering, linearization and the like. The environment control computer calculates control signals according to a temperature control algorithm and sends the control signals to actuating mechanisms such as an air refrigeration system, a liquid circulation system and the like, so that all parts of the environment control unit can work coordinately and consistently according to system requirements, and the temperature of the airborne electronic equipment is guaranteed to be within an allowable range. Meanwhile, the liquid level signal, the hydraulic signal, the temperature value of each test point, the detected working state and the alarm signal of the environmental control unit are sensed in real time through the CAN bus.
The existing testing method adopts manual setting of the output resistance of the variable resistance box to replace the output of the temperature sensor, the precision is 0.1 omega, the adjustable range is 0-2000 omega, 3 working conditions are provided, and 15 setting values are provided; the method adopts the manual setting of the output voltage of a direct-current power supply to replace the output of a liquid level sensor and a hydraulic sensor, the precision is 0.1V, the voltage range is 0-28V, 5 working conditions and 10 setting values are provided; the working state, the test result and the like of the environment control unit are monitored by CANTest general test software, and then the CAN message is manually observed according to the software interface definition and manually converted to obtain the test result.
With the increasing demand of electronic equipment, the production quantity of the environmental control units is increased. The existing test system can only meet the test capability of a small number of products in the process of development and trial production and cannot adapt to large-scale production.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides the universal automatic test system for the ring control units, can realize the consistency of test signals generated by the test system, meets the requirement of batch production of the ring control units, shortens the test time of a single set of ring control units by 80 percent, avoids the artificial error of input signals, standardizes the test process, improves the test precision and the production efficiency, meets the requirement of batch production of the ring control units, is favorable for achieving great success in commerce and the like.
The purpose of the invention is realized by the following scheme:
a universal automatic test system for environmental control units, comprising:
the system comprises a measurement and control computer, an Ethernet switch, a CAN module, a programmable resistance box, a programmable power supply set and test software, wherein the programmable resistance box and the programmable power supply set are respectively in communication connection with the Ethernet switch, the Ethernet switch is connected with the measurement and control computer, and the CAN module is connected with the measurement and control computer; controlling the programmable resistance box and the programmable power supply set to simulate and generate input signals of various working conditions through network communication based on test software, and automatically testing the environment control unit and generating a test report; different input signals are configured through test software, and the similar product environment control units with different models are tested.
Furthermore, the test software comprises an instrument management module, a communication interface management module, a test management control module and a data management module, wherein the instrument management module is used for completing online detection of the electrified CAN module, the programmable resistance box and the programmable power pack; the communication interface management module is used for managing CAN communication and internet access communication; the test management control module is used for finishing start, interruption and human-computer interaction prompt; and the data management module is used for recording process data, generating a detection report and browsing the detection report.
Further, the test software comprises a test item module.
Furthermore, the test item module comprises a control module, an environmental control unit detection module and a fault alarm module.
Furthermore, the test item module comprises a display module for displaying the liquid supply index, long-term operation, power-on time sequence and volume compensation amount.
Further, the programmable power supply set comprises a programmable direct current power supply set.
Furthermore, the test software comprises an environmental control system fault diagnosis expert system which is used for carrying out self-diagnosis and fault location on the faults of the environmental control system and providing a prestored solution. The intelligent and automatic fault diagnosis system has the characteristics of intellectualization and automation of fault diagnosis, and plays an important role in reducing maintenance cost and improving maintenance efficiency.
The invention has the beneficial effects that:
(1) compared with the existing method, the universal automatic test system for the environmental control units solves the problems that the high efficiency and the large scale of the test of the environmental control units are difficult to realize by improving the existing manual test method, can realize the consistency of test signals generated by the test system, shortens the test time of a single set of environmental control units by 80 percent, avoids input signal errors caused by manual setting factors, ensures the test precision, adopts automatic test and automatic judgment, improves the test standardization, the test efficiency and the test precision, is favorable for improving the production efficiency, meets the batch production requirements of the environmental control units, and is favorable for obtaining great commercial success.
(2) In the embodiment of the invention, different input signals can be configured through software, the ring control units of the same type of products with different models can be tested, and the test system is generalized.
(3) In the embodiment of the invention, the programmable resistance box and the programmable power supply are controlled through network communication based on test software to simulate and generate input signals of various working conditions to automatically test the environmental control unit and generate a test report, and the method has the function of managing information of various dimensions in the production of the environmental control unit. The current universal automatic test system for the ring control units can be applied to batch production and inspection of the three ring control units.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a block diagram of a universal automatic test system for environmental control units according to the present invention;
in the figure, 1-a measurement and control computer, 2-an Ethernet switch, 3-a CAN module, 4-a program-controlled multi-path programmable resistance box and 5-a program-controlled DC power supply group.
Detailed Description
All of the features disclosed in the specification for all of the embodiments (including any accompanying claims, abstract and drawings), or all of the steps of a method or process so disclosed, may be combined and/or expanded, or substituted, in any way, except for mutually exclusive features and/or steps.
It can be known from the background that the consistency of test signals generated by a test system is difficult to ensure by adopting the existing test mode, and the batch production of the environmental control units cannot be satisfied.
As shown in fig. 1, a universal automatic test system for environmental control units includes:
the testing and controlling system comprises a testing and controlling computer 1, an Ethernet switch 2, a CAN module 3, a programmable resistance box 4, a programmable power supply pack 5 and testing software, wherein the programmable resistance box 4 and the programmable power supply pack 5 are respectively in communication connection with the Ethernet switch 2, the Ethernet switch 2 is connected with the testing and controlling computer 1, and the CAN module 3 is connected with the testing and controlling computer 1; controlling the programmable resistance box 4 and the programmable power supply pack 5 to simulate and generate input signals of various working conditions through network communication based on test software, and automatically testing the environment control unit and generating a test report; different input signals are configured through test software, and the similar product environment control units with different models are tested.
Furthermore, the test software comprises an instrument management module, a communication interface management module, a test management control module and a data management module, wherein the instrument management module is used for completing online detection of the electrified CAN module 3, the programmable resistance box 4 and the programmable power pack 5; the communication interface management module is used for managing CAN communication and internet access communication; the test management control module is used for finishing start, interruption and human-computer interaction prompt; and the data management module is used for recording process data, generating a detection report and browsing the detection report.
Further, the test software comprises a test item module.
Furthermore, the test item module comprises a control module, an environmental control unit detection module and a fault alarm module.
Furthermore, the test item module comprises a display module for displaying the liquid supply index, long-term operation, power-on time sequence and volume compensation amount.
Further, the programmable power supply pack 5 comprises a programmable dc power supply pack.
Furthermore, the test software comprises an environmental control system fault diagnosis expert system which is used for carrying out self-diagnosis and fault location on the faults of the environmental control system and providing a prestored solution. The intelligent and automatic fault diagnosis system has the characteristics of intellectualization and automation of fault diagnosis, and plays an important role in reducing maintenance cost and improving maintenance efficiency.
In other embodiments of the invention, based on the automation of the test system and the capability of testing the requirements of the environmental control products of the same type and different models, the invention provides a universal automatic test system of a certain type of environmental control unit, which comprises 1) a test control computer; 2) an Ethernet switch; 3) a CAN module; 4) a programmable resistance box; 5) a program-controlled DC power supply. The test system automatically generates corresponding input signals according to the selected test items, injects the input signals into the environment control unit, automatically analyzes the test results of the environment control unit reported through CAN communication, and generates a test report.
The general automatic test system software of the environmental control unit adopts a modular structure mode. The system consists of five modules, namely a test item module, an instrument management module, a communication interface management module, a test management control module and a data management module. The test item module includes: the environment control unit has a detection function, a fault alarm function, a control function, a liquid supply index, long-term operation, a power-on time sequence, a volume compensation amount and a control function; the instrument management module is used for completing the online detection of the electrified CAN module, the programmable resistance box and the program-controlled direct-current power supply; the communication management module comprises CAN communication and internet access communication; the test management control module is mainly used for finishing start and interruption, human-computer interaction prompt and the like; the data management module comprises process data recording, detection report generation, detection report browsing and the like.
Compared with the existing method, the universal automatic test system for the environmental control units shortens the test time of a single set of environmental control units by 80%, avoids the human error of input signals, standardizes the test process, improves the test precision and the production efficiency, and meets the requirement of batch production of the environmental control units.
Different input signals are configured through software, so that the ring control units of the same type of products with different models can be tested, and the test system is generalized.
The invention is based on the test software and simulates the input signals of various working conditions to automatically test the ring control unit and generate a test report by controlling the programmable resistance box and the programmable power supply through network communication. The method has the function of managing the information of each dimension in the production of the environmental control unit. The universal automatic test system for the ring control units is applied to batch production and inspection of the three ring control units at present, the consistency and the precision of the test system are improved, the test time of the ring control units is shortened, and the production line of the ring control units has the capacity of large-scale production.
The technical scheme of the invention makes progress in technology, is favorable for obtaining commercial success, and obtains good economic benefits, such as:
the universal automatic test system for the environment control units can be applied to the production and detection processes of three environment control systems at present, so that the large-scale production of the three environment control systems is realized, and the production efficiency and the test precision of the environment control systems are improved. The system has expansibility through a reserved expansion interface, and can be applied to the production and detection of other various environment-controlled products through software configuration parameters. The general automatic test system software of the environmental control unit also comprises an environmental control system fault diagnosis expert system, so that the system has the functions of self-diagnosing the faults of the environmental control unit, self-positioning and providing a maintenance scheme.
The three environment control systems are all one of the urgent needs of national defense and civil construction, and by adopting the novel technology of the invention, the environment control system has the characteristics of intellectualization, high precision and high reliability, fills the blank of the domestic equipment, and has the product quantity and the product value shown in the following table 1.
TABLE 1 yield of the environmental control unit
The universal automatic test system of the environmental control unit becomes important equipment in the production process of the environmental control unit, also becomes indispensable resources for daily detection and maintenance of users of the environmental control unit, and is listed as corollary equipment of the environmental control unit, and the number of products produced, the product value and the product distribution are shown in a table 2. Because the automatic test system has expansibility, the test, detection and maintenance requirements of the environment control unit developed in the later period can be met, and the market of products can be further expanded.
TABLE 2 output value of automatic test system for environmental control unit
The functionality of the present invention, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium, and all or part of the steps of the method according to the embodiments of the present invention are executed in a computer device (which may be a personal computer, a server, or a network device) and corresponding software. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, or an optical disk, exist in a read-only Memory (RAM), a Random Access Memory (RAM), and the like, for performing a test or actual data in a program implementation.
Claims (7)
1. The universal automatic test system for the ring control units is characterized by comprising a measurement and control computer (1), an Ethernet switch (2), a CAN module (3), a program-controlled programmable resistance box (4), a program-controlled power supply pack (5) and test software, wherein the program-controlled programmable resistance box (4) and the program-controlled power supply pack (5) are respectively in communication connection with the Ethernet switch (2), the Ethernet switch (2) is connected with the measurement and control computer (1), and the CAN module (3) is connected with the measurement and control computer (1); controlling the programmable resistance box (4) and the programmable power pack (5) to simulate and generate input signals of various working conditions through network communication based on test software, and automatically testing the ring control unit and generating a test report; different input signals are configured through test software, and the similar product environment control units with different models are tested.
2. The universal automatic test system for the environmental control units according to claim 1, wherein the test software comprises an instrument management module, a communication interface management module, a test management control module and a data management module, wherein the instrument management module is used for completing online detection of the power-on CAN module (3), the programmable resistance box (4) and the programmable power pack (5); the communication interface management module is used for managing CAN communication and internet access communication; the test management control module is used for finishing start, interruption and human-computer interaction prompt; and the data management module is used for recording process data, generating a detection report and browsing the detection report.
3. The universal automatic test system for environmental control units according to claim 1 or 2, wherein the test software comprises a test item module.
4. The universal automatic test system for environmental control units according to claim 3, wherein the test item module comprises a control module, an environmental control unit detection module and a fault alarm module.
5. The universal automatic test system for environmental control units according to claim 3,
the test item module comprises a display module used for displaying liquid supply indexes, long-term operation, power-on time sequence and volume compensation amount.
6. The universal automatic test system for environmental control units according to claim 1, characterized in that the programmable power supply pack (5) comprises a programmable dc power supply pack.
7. The universal automatic test system for environmental control units according to claim 1, wherein the test software comprises an environmental control system fault diagnosis expert system for enabling self-diagnosis and fault location of environmental control system faults and providing pre-stored solutions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011252983.XA CN112462735A (en) | 2020-11-11 | 2020-11-11 | Universal automatic test system for environment control unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011252983.XA CN112462735A (en) | 2020-11-11 | 2020-11-11 | Universal automatic test system for environment control unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112462735A true CN112462735A (en) | 2021-03-09 |
Family
ID=74826465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011252983.XA Pending CN112462735A (en) | 2020-11-11 | 2020-11-11 | Universal automatic test system for environment control unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112462735A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101169634A (en) * | 2007-11-22 | 2008-04-30 | 江西洪都航空工业集团有限责任公司 | Machine-mounted apparatus power supply detecting bench |
| CN101697078A (en) * | 2009-10-22 | 2010-04-21 | 北京航空航天大学 | On-line fault diagnosis device and on-line fault diagnosis method of simple-type environmental control system |
| CN101916108A (en) * | 2010-08-31 | 2010-12-15 | 上海交通大学 | Automation device for use in civil aircraft environment control system function test |
| CN202771256U (en) * | 2012-09-21 | 2013-03-06 | 山东翔宇航空技术服务有限责任公司 | Aircraft zone temperature controller automatic simulation test desk |
| CN204155148U (en) * | 2014-11-17 | 2015-02-11 | 赵红军 | A kind of military cockpit air handling system outfield pick-up unit |
| CN104460659A (en) * | 2014-11-17 | 2015-03-25 | 赵红军 | Military aviation cockpit air adjusting system external field detecting device and method |
| CN207833264U (en) * | 2017-11-17 | 2018-09-07 | 北京安达维尔测控技术有限公司 | A kind of adapter of universal airplane test equipment |
| CN109062176A (en) * | 2018-06-26 | 2018-12-21 | 昆山睿力得软件技术有限公司 | A kind of temperature controlling box Auto-Test System and method |
| CN208781065U (en) * | 2018-11-12 | 2019-04-23 | 四川海特高新技术股份有限公司 | A kind of cargo compartment temperature controller test platform |
| CN209467351U (en) * | 2019-02-13 | 2019-10-08 | 上海南土信息科技有限公司 | A kind of Portable aircraft basket ring control system test equipment |
| CN110550229A (en) * | 2018-06-01 | 2019-12-10 | 霍尼韦尔国际公司 | System and method for generating an environmental control system health report for an aircraft |
-
2020
- 2020-11-11 CN CN202011252983.XA patent/CN112462735A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101169634A (en) * | 2007-11-22 | 2008-04-30 | 江西洪都航空工业集团有限责任公司 | Machine-mounted apparatus power supply detecting bench |
| CN101697078A (en) * | 2009-10-22 | 2010-04-21 | 北京航空航天大学 | On-line fault diagnosis device and on-line fault diagnosis method of simple-type environmental control system |
| CN101916108A (en) * | 2010-08-31 | 2010-12-15 | 上海交通大学 | Automation device for use in civil aircraft environment control system function test |
| CN202771256U (en) * | 2012-09-21 | 2013-03-06 | 山东翔宇航空技术服务有限责任公司 | Aircraft zone temperature controller automatic simulation test desk |
| CN204155148U (en) * | 2014-11-17 | 2015-02-11 | 赵红军 | A kind of military cockpit air handling system outfield pick-up unit |
| CN104460659A (en) * | 2014-11-17 | 2015-03-25 | 赵红军 | Military aviation cockpit air adjusting system external field detecting device and method |
| CN207833264U (en) * | 2017-11-17 | 2018-09-07 | 北京安达维尔测控技术有限公司 | A kind of adapter of universal airplane test equipment |
| CN110550229A (en) * | 2018-06-01 | 2019-12-10 | 霍尼韦尔国际公司 | System and method for generating an environmental control system health report for an aircraft |
| CN109062176A (en) * | 2018-06-26 | 2018-12-21 | 昆山睿力得软件技术有限公司 | A kind of temperature controlling box Auto-Test System and method |
| CN208781065U (en) * | 2018-11-12 | 2019-04-23 | 四川海特高新技术股份有限公司 | A kind of cargo compartment temperature controller test platform |
| CN209467351U (en) * | 2019-02-13 | 2019-10-08 | 上海南土信息科技有限公司 | A kind of Portable aircraft basket ring control system test equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10962999B2 (en) | Microgrid model based automated real time simulation for market based electric power system optimization | |
| CN107885097B (en) | Nuclear power station simulator control system DCS transformation closed loop verification system and method | |
| US5991707A (en) | Method and system for predictive diagnosing of system reliability problems and/or system failure in a physical system | |
| CN111459700A (en) | Method and apparatus for diagnosing device failure, diagnostic device, and storage medium | |
| CN105158718B (en) | A kind of fault detector integrated test facility and test system | |
| CN106405294B (en) | Portable power distribution product transmission calibrator and implementation test method thereof | |
| CN110187210A (en) | A kind of electric automatization equipment automatic checkout system and detection method | |
| CN100465840C (en) | Method for simulating a technical installation | |
| CN107784139A (en) | Compressor control system electrical schematic diagram automatic generation method | |
| Liu et al. | Thermal error modeling for machine tools: Mechanistic analysis and solution for the pseudocorrelation of temperature-sensitive points | |
| CN106094771A (en) | Mobility determines system and method and terminal | |
| CN201035403Y (en) | Portable synthetic parameter checking device for petroleum, chemical automation system | |
| CN112462735A (en) | Universal automatic test system for environment control unit | |
| CN113611096A (en) | Electric energy consumption monitoring and early warning system for air compression station | |
| CN117272591A (en) | Test method and system for energy storage simulation experiment | |
| CN102969711A (en) | Line loss control system | |
| Saputra et al. | Internet of things-based steam pump motor protection due to voltage unbalance | |
| CN113587972B (en) | Sensor parameter correction processing method, device and system | |
| CN109032084A (en) | A kind of status assessment and fault diagnosis system and method for Measure of Process Capability driving | |
| CN115118578A (en) | SCADA system based on WEB | |
| CN114764532A (en) | Distribution network terminal reliability prediction method and system | |
| CN2667541Y (en) | High precision intelligent hot runner temperature controller | |
| CN113189957A (en) | System and method for testing plug-in energy Internet networking controller | |
| CN207424672U (en) | Laser level control instrument test device | |
| CN203732984U (en) | Detection equipment for power generation set control box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210309 |
|
| RJ01 | Rejection of invention patent application after publication |