CN112666930B - Comprehensive test bench for train air conditioning control systems - Google Patents
Comprehensive test bench for train air conditioning control systems Download PDFInfo
- Publication number
- CN112666930B CN112666930B CN202011620909.9A CN202011620909A CN112666930B CN 112666930 B CN112666930 B CN 112666930B CN 202011620909 A CN202011620909 A CN 202011620909A CN 112666930 B CN112666930 B CN 112666930B
- Authority
- CN
- China
- Prior art keywords
- air conditioner
- interface
- plc
- conditioner controller
- air conditioning
- 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.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 45
- 238000004378 air conditioning Methods 0.000 title claims abstract description 18
- 238000004088 simulation Methods 0.000 claims abstract description 32
- 230000003993 interaction Effects 0.000 claims abstract description 31
- 238000004891 communication Methods 0.000 claims abstract description 6
- 238000001514 detection method Methods 0.000 claims description 16
- 230000006870 function Effects 0.000 claims description 6
- 229910052732 germanium Inorganic materials 0.000 claims description 3
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 9
- 239000000306 component Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000008358 core component Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
Landscapes
- Testing And Monitoring For Control Systems (AREA)
- Air Conditioning Control Device (AREA)
Abstract
本发明涉及空调测试设备领域，公开了一种用于列车空调控制***的综合试验台，以便于对空调控制器进行准确检测。本发明包括PLC、人机交互模块、空调控制器、电流模拟调节器以及温度模拟调节器；PLC的通信接口和人机交互模块相连，PLC的输出接口和空调控制器的输入接口相连，PLC的输入接口和空调控制器的输出接口相连，空调控制器的电流接口和电流模拟调节器相连，空调控制器的温度接口和温度模拟调节器相连。本发明适用于列车空调控制***检修测试。
The present invention relates to the field of air conditioning test equipment, and discloses a comprehensive test bench for a train air conditioning control system, so as to accurately detect an air conditioning controller. The present invention comprises a PLC, a human-computer interaction module, an air conditioning controller, a current simulation regulator, and a temperature simulation regulator; the communication interface of the PLC is connected to the human-computer interaction module, the output interface of the PLC is connected to the input interface of the air conditioning controller, the input interface of the PLC is connected to the output interface of the air conditioning controller, the current interface of the air conditioning controller is connected to the current simulation regulator, and the temperature interface of the air conditioning controller is connected to the temperature simulation regulator. The present invention is suitable for maintenance and testing of a train air conditioning control system.
Description
Technical Field
The invention relates to the field of air conditioner test equipment, in particular to a comprehensive test bed for a train air conditioner control system.
Background
The train air conditioner working condition directly influences the riding experience of passengers, an air conditioning system breaks down on the positive line, but the faults can not be reproduced after the train returns to the warehouse, so that maintenance personnel are difficult to analyze and process the faults, the trouble causes are difficult to find, the problems of the fault rate and the high complaints of the passengers are not solved effectively at the latest, and the maintenance work of the vehicle faces great pressure.
In addition, train usage units such as subway operation companies often do not have the ability to detect, analyze, and repair core elements and critical components. If the air conditioner control system fails, all related components are replaced, so that the problem is not thoroughly solved, and the maintenance cost is increased.
At present, no product identical to a comprehensive test bed of a train air conditioner control system is found. The main defects of the existing air conditioner detection mode are as follows:
1. The existing air conditioner detection equipment cannot simulate the failure of a train air conditioner. After the train returns to the warehouse, the faults usually disappear, and the faults cannot be reproduced in a fault simulation mode, so that a vehicle maintainer cannot accurately analyze and judge the faults. Generally, a mode of increasing equipment inspection frequency is adopted, the aim of reducing the failure rate is expected to be achieved, but the actual effect is very small, and the failure of an air conditioner control system cannot be effectively solved for a long time.
2. The existing air conditioner detection equipment cannot automatically maintain the core elements of the train air conditioner. The air conditioner controller is a core component in a train air conditioning system, and the market price is about 4 ten thousand yuan/set. If the air conditioner fails, the air conditioner control system can only be replaced, so that the maintenance cost of the air conditioner control system is high.
3. The existing air conditioner detection equipment has single function and poor practicability. The air conditioner detection equipment on the market can only detect the working conditions of components such as a ventilator, a condensing fan and a compressor, and usually only test parameters such as working voltage and current, but not test air conditioner controllers or parts of air conditioner control system components, and further simulate various faults, verify faults or technical improvement schemes, so that the air conditioner detection equipment is high in limitation and low in practicability.
Disclosure of Invention
The invention aims to solve the technical problem of providing a comprehensive test bed for a train air conditioner control system so as to accurately detect an air conditioner controller.
The technical scheme includes that the comprehensive test bed for the train air conditioner control system comprises a man-machine interaction module, an air conditioner controller, a current simulation regulator, a temperature simulation regulator and a PLC for simulating interface state signals of controlled elements, wherein a communication interface of the PLC is connected with the man-machine interaction module, an output interface of the PLC is connected with an input interface of the air conditioner controller, an input interface of the PLC is connected with an output interface of the air conditioner controller, a current interface of the air conditioner controller is connected with the current simulation regulator, and a temperature interface of the air conditioner controller is connected with the temperature simulation regulator.
The system comprises a current simulation regulator, a temperature simulation regulator, a man-machine interaction module, a comprehensive test bench, a control module and a control module, wherein the current simulation regulator is used for providing virtual compressor currents under different working conditions for an air conditioner controller;
when the air conditioner controller is used as detected equipment, the PLC is used for simulating an interface state signal of a controlled element, providing the simulated signal for the air conditioner controller, detecting whether an output signal of the air conditioner controller is normal or not, and outputting a detection result to the man-machine interaction module, wherein the controlled element is an element controlled by the air conditioner controller in an air conditioner system;
when the air conditioner controller participates in the test of the controlled element in the air conditioner system by the non-detected equipment identity, the PLC is used for simulating interface state signals of other elements except the element to be detected in the air conditioner system, detecting whether the interface state signals of the element to be detected are normal or not, and outputting a detection result to the human-computer interaction module.
Specifically, the current analog regulator provides virtual compressor current for the compressor in the open circuit, light load, medium load and overload conditions.
Specifically, the model of the PLC can be S7-1200.
Specifically, the current analog regulator switches 4 germanium diodes connected in series through a multi-gear master switch to form 5 gears of 0V, 0.2V, 0.4V, 0.8V and 1.2V, and the 5 gears correspond to working currents of compressors 0A, 4A, 8A, 12A and 16A respectively.
The invention has the beneficial effects that on one hand, various running states of the air conditioner control system interface can be comprehensively simulated through the PLC, so that the fault point can be conveniently and quickly confirmed, and the difficult and difficult faults of the air conditioner can be solved. On the other hand, the device can also perform physical test and functional verification, provides convenience for maintenance of the core component, and effectively solves the existing problems.
Drawings
Fig. 1 is a block diagram of the structure of the present invention.
Fig. 2 is a block diagram of an embodiment.
Fig. 3 is a block diagram of a current analog regulator according to an embodiment.
Detailed Description
In order to accurately detect the air conditioner controller, the invention discloses a comprehensive test bed which can be used for a train air conditioner control system, and the PLC and the air conditioner controller are integrated to construct the comprehensive test bed with fault simulation, component detection and deep maintenance functions. The programmable controller comprises a Programmable Logic Controller (PLC) (Programmable Logic Controller, PLC), a microprocessor, a digital operation controller for automatic control, a Programmable Logic Controller (PLC) and a control unit, wherein the PLC can load control instructions into a memory at any time for storage and execution, and the programmable logic controller consists of a CPU, instruction and data memory, an input/output interface, a power supply, digital-analog conversion and other functional units. In the invention, a communication interface of the PLC is connected with a man-machine interaction module, an output interface of the PLC is connected with an input interface of an air conditioner controller, the input interface of the PLC is connected with an output interface of the air conditioner controller, a current interface of the air conditioner controller is connected with a current analog regulator, and a temperature interface of the air conditioner controller is connected with a temperature analog regulator.
The current simulation regulator is used for providing virtual compressor currents under different working conditions for the air conditioner controller, such as virtual compressor currents of the compressor in the states of open circuit, light load, medium load and overload;
The temperature simulation regulator is used for providing fresh air and return air temperature data of the virtual air conditioner for the air conditioner controller;
The man-machine interaction module is used for realizing man-machine interaction functions between a user and the comprehensive test bed, and comprises user instruction issuing and test result display;
when the air conditioner controller is used as detected equipment, the PLC is used for simulating an interface state signal of a controlled element, providing the simulated signal for the air conditioner controller, detecting whether an output signal of the air conditioner controller is normal or not, and outputting a detection result to the man-machine interaction module, wherein the controlled element is an element controlled by the air conditioner controller in an air conditioner system;
when the air conditioner controller participates in the test of the controlled element in the air conditioner system by the non-detected equipment identity, the PLC is used for simulating interface state signals of other elements except the element to be detected in the air conditioner system, detecting whether the interface state signals of the element to be detected are normal or not, and outputting a detection result to the human-computer interaction module.
The invention is further illustrated by the following examples and figures.
Examples
The embodiment provides a comprehensive test bed for a train air conditioner control system, as shown in fig. 2, mainly comprising a PLC, a human-computer interaction module HMI, an air conditioner controller, a current simulation regulator, a temperature simulation regulator and a computer, wherein a communication interface of the PLC is connected with the human-computer interaction module, an output interface of the PLC is connected with an input interface of the air conditioner controller, the input interface of the PLC is connected with an output interface of the air conditioner controller, a current interface of the air conditioner controller is connected with the current simulation regulator, a temperature interface of the air conditioner controller is connected with the temperature simulation regulator, and the computer is connected with a communication interface of the air conditioner controller. The functions of each part are as follows:
1. Human-computer interaction module HMI
The human-computer interaction module HMI is used as a human-computer interaction interface and is used for realizing the human-computer interaction function between a user and the comprehensive test bed, and comprises the steps of receiving a test instruction of the user, displaying a test result, displaying the working state of an air conditioner control system interface and the like. In the embodiment, the man-machine interaction module can display the working states of the compressor, the ventilator, the condensing fan and other elements in the air conditioning system on the front page of the man-machine interaction module, and can scroll and display faults of main interface elements in real time, the working states of the main interface elements can be displayed on the second page and the third page of the man-machine interaction module, input signals can be manually controlled, the third page of the man-machine interaction module is an alarm information page, specific information and time during alarm can be automatically generated, and the man-machine interaction module is convenient for maintenance personnel to analyze and process the faults.
2、PLC
The PLC is used for simulating and generating the running state of the train air conditioner control system interface to the air conditioner controller according to the test instruction, and detecting an instruction signal output by the air conditioner controller to the controlled element. In an embodiment, the PLC selects SIEMENS S7-1200 component.
3. Current analog regulator
The current simulation regulator is used for simulating and generating virtual compressor currents under different working conditions to the air conditioner controller. As shown in fig. 3, the current analog regulator in the embodiment can utilize the characteristic that the voltage D1-D4 of the germanium diode drops to 0.2V, and switches 4 diodes connected in series through a multi-gear master switch to form 5 gears of 0V, 0.2V, 0.4V, 0.8V and 1.2V, and the 5 gears correspond to the working currents of the compressors 0A, 4A, 8A, 12A and 16A so as to meet the requirement of the experiment table on the working current of the compressors.
4. Temperature analog regulator
The temperature simulation regulator is used for providing fresh air and return air temperature data of the virtual air conditioner for the air conditioner controller. The working temperature range of the air conditioner of the subway train is-35 ℃ to 45 ℃, the identifiable limit temperature of the air conditioner control system is-50 ℃ to 100 ℃, and the temperature simulation regulator can realize continuous regulation in the limit temperature range and meet the requirements of the test bed on normal temperature environment and limit temperature environment test. When the air temperature is high, the temperature simulation regulator is used for regulating down the identification temperature of the air conditioner controller to realize air conditioning heat, and when the air temperature is low, the temperature simulation regulator is used for regulating up the identification temperature of the air conditioner controller to realize air conditioning refrigeration so as to meet the requirements of fault simulation, test and maintenance.
5. Air conditioner controller
The air conditioner controller is used for generating corresponding control command signals to the controlled elements in the air conditioner according to the test command signals output by the PLC. The air conditioner controller can be used as detected equipment, the equipment state of the detected equipment is detected by the train air conditioner control system comprehensive test bed, and the running state of an interface element of the detected equipment can be simulated by the air conditioner controller as a part of the train air conditioner control system comprehensive test bed. Meanwhile, other physical elements of the train air conditioner control system can be conveniently connected into the test bed to participate in fault simulation or performance test. Specifically, when the air conditioner controller is used as the detected equipment, the PLC is used for simulating interface state signals of the controlled elements, providing the simulated signals for the air conditioner controller, detecting whether output signals of the air conditioner controller are normal or not, and outputting detection results to the man-machine interaction module, wherein the controlled elements are elements controlled by the air conditioner controller in the air conditioner system, and when the air conditioner controller participates in the test of the controlled elements in the air conditioner system in a non-detected equipment identity, the PLC is used for simulating interface state signals of other elements except the element to be detected in the air conditioner system, detecting whether the interface state signals of the element to be detected are normal or not, and outputting the detection results to the man-machine interaction module.
6. Computer with a computer program
The computer is used as a participation experimental device, and can collect data in the air conditioner controller so as to be called when the test result is analyzed later.
The embodiment can realize the single test or the comprehensive test of objects and virtual and directly observe the response condition of an air conditioning system by the comprehensive test bed formed by the modules, simulate all input signals and output load faults, test and maintain an air conditioning controller, perform software simulation test and access object test, perform mutual verification, improve the detection accuracy, dynamically display the working process and directly observe the states and working conditions of each switch, each sensor, each motor, each valve and the like.
Claims (2)
1. The integrated test bed for the train air conditioner control system is characterized by comprising a man-machine interaction module, an air conditioner controller, a current simulation regulator, a temperature simulation regulator and a PLC for simulating interface state signals of controlled elements, wherein a communication interface of the PLC is connected with the man-machine interaction module, an output interface of the PLC is connected with an input interface of the air conditioner controller, an input interface of the PLC is connected with an output interface of the air conditioner controller, a current interface of the air conditioner controller is connected with the current simulation regulator, and a temperature interface of the air conditioner controller is connected with the temperature simulation regulator;
The current simulation regulator is used for providing virtual compressor current of the compressor in the state of circuit breaking, light load, medium load and overload and heavy load for the air conditioner controller, and switches 4 germanium diodes which are connected in series through a multi-gear master switch to form 5 gears of 0V, 0.2V, 0.4V, 0.8V and 1.2V, wherein the 5 gears respectively correspond to working currents of the compressors 0A, 4A, 8A, 12A and 16A;
The temperature simulation regulator is used for providing fresh air and return air temperature data of the virtual air conditioner for the air conditioner controller;
The man-machine interaction module is used for realizing man-machine interaction functions between a user and the comprehensive test bed, and comprises user instruction issuing and test result display;
when the air conditioner controller is used as detected equipment, the PLC is used for simulating an interface state signal of a controlled element, providing the simulated signal for the air conditioner controller, detecting whether an output signal of the air conditioner controller is normal or not, and outputting a detection result to the man-machine interaction module, wherein the controlled element is an element controlled by the air conditioner controller in an air conditioner system;
when the air conditioner controller participates in the test of the controlled element in the air conditioner system by the non-detected equipment identity, the PLC is used for simulating interface state signals of other elements except the element to be detected in the air conditioner system, detecting whether the interface state signals of the element to be detected are normal or not, and outputting a detection result to the human-computer interaction module.
2. The comprehensive test stand for a train air conditioning control system according to claim 1, wherein the PLC is of model S7-1200.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011620909.9A CN112666930B (en) | 2020-12-31 | 2020-12-31 | Comprehensive test bench for train air conditioning control systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011620909.9A CN112666930B (en) | 2020-12-31 | 2020-12-31 | Comprehensive test bench for train air conditioning control systems |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112666930A CN112666930A (en) | 2021-04-16 |
| CN112666930B true CN112666930B (en) | 2024-12-03 |
Family
ID=75412099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011620909.9A Active CN112666930B (en) | 2020-12-31 | 2020-12-31 | Comprehensive test bench for train air conditioning control systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112666930B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN213876428U (en) * | 2020-12-31 | 2021-08-03 | 成都地铁运营有限公司 | Comprehensive test bed for train air-conditioning control system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106004905B (en) * | 2016-07-28 | 2018-04-03 | 中车建设工程有限公司 | The train air-conditioning control method responded rapidly to |
| WO2019127201A1 (en) * | 2017-12-27 | 2019-07-04 | 中车长春轨道客车股份有限公司 | Rail train and air conditioning control system thereof |
| CN110673585B (en) * | 2019-10-15 | 2021-01-22 | 新誉轨道交通科技有限公司 | Test method, test device and test system for train air conditioning system |
| CN111223349B (en) * | 2019-11-08 | 2022-05-20 | 中车长春轨道客车股份有限公司 | Intelligent debugging and training system and method for heating and ventilation control of urban railway passenger car |
-
2020
- 2020-12-31 CN CN202011620909.9A patent/CN112666930B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN213876428U (en) * | 2020-12-31 | 2021-08-03 | 成都地铁运营有限公司 | Comprehensive test bed for train air-conditioning control system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112666930A (en) | 2021-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102748832B (en) | Air conditioning fault detection method | |
| CN103399239B (en) | The detection method of commercial unit voltage sag immunity | |
| CN103984338A (en) | Air conditioner controller automatic testing system and testing method thereof | |
| CN111366835A (en) | Electronic control board test method and test system | |
| CN202033913U (en) | Automobile fault intelligent arranging, training and examining system | |
| CN205809245U (en) | A kind of mechanical characteristic of high-voltage circuit breaker state on_line monitoring system | |
| CN104408247A (en) | Method for simulating troubleshooting training of complex electrical system | |
| CN100533314C (en) | Cold-storage container micro controller fault diagnosing system | |
| CN111999090A (en) | A vehicle air conditioner offline detection device and method | |
| CN110919144A (en) | Automatic detection device and detection method for welding power supply | |
| CN105810062A (en) | 10kV typical customer transformer substation intelligent simulation training system | |
| CN213876428U (en) | Comprehensive test bed for train air-conditioning control system | |
| CN102194364A (en) | Teaching training table for alternating-current variable-frequency multi-unit air conditioning unit | |
| CN112666930B (en) | Comprehensive test bench for train air conditioning control systems | |
| CN204440046U (en) | A kind of central air conditioner electronic box emulator based on CAREL PLC | |
| JP2003131733A (en) | Facility control and monitoring method and facility control and monitoring system | |
| CN109949647A (en) | THDS malfunction elimination training system, Training Methodology and device | |
| CN102331069B (en) | Machine room air conditioner control system with simulation instrument | |
| CN113466579A (en) | High-temperature aging automatic test monitoring method and system for vehicle-mounted product | |
| CN201397368Y (en) | Testing equipment for control unit of auxiliary inverter | |
| CN105867162A (en) | Fault recurrence equipment and use method thereof | |
| CN210742740U (en) | Portable high-precision man-machine interaction verification equipment for airplane temperature control indexes | |
| CN204374339U (en) | A kind of online ageing tester | |
| CN202075911U (en) | Alternating-current variable-frequency multi-connected air conditioning unit teaching training platform | |
| CN203837908U (en) | Pre-cooling valve experiment device |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |