CN111999090A - Offline detection device and method for vehicle air conditioner - Google Patents
Offline detection device and method for vehicle air conditioner Download PDFInfo
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- CN111999090A CN111999090A CN202010923940.3A CN202010923940A CN111999090A CN 111999090 A CN111999090 A CN 111999090A CN 202010923940 A CN202010923940 A CN 202010923940A CN 111999090 A CN111999090 A CN 111999090A
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- 238000001514 detection method Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000006854 communication Effects 0.000 claims abstract description 41
- 238000004891 communication Methods 0.000 claims abstract description 41
- 238000012545 processing Methods 0.000 claims abstract description 15
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 6
- 230000007175 bidirectional communication Effects 0.000 claims abstract description 4
- 238000012360 testing method Methods 0.000 claims description 74
- 238000005057 refrigeration Methods 0.000 claims description 14
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 238000007689 inspection Methods 0.000 abstract description 4
- 230000000875 corresponding effect Effects 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/008—Subject matter not provided for in other groups of this subclass by doing functionality tests
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/002—Thermal testing
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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
- G01R31/01—Subjecting similar articles in turn to test, e.g. "go/no-go" tests in mass production; Testing objects at points as they pass through a testing station
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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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/55—Testing for incorrect line connections
-
- 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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/56—Testing of electric apparatus
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- Air Conditioning Control Device (AREA)
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Abstract
The invention provides a device and a method for detecting the offline of a vehicle air conditioner, which relate to the field of vehicle-mounted air conditioner detection.A detection module comprises an industrial personal computer and a display screen communicated with the industrial personal computer; the signal acquisition module and the signal indication module are both connected with the data communication module; the data communication module is in bidirectional communication connection with the industrial personal computer and is in bidirectional connection with the controlled air conditioner through a communication wire harness; the industrial personal computer is internally provided with a signal receiving unit, a data processing and analyzing unit and an instruction sending unit; the signal receiving unit is used for receiving the data acquired by the signal acquisition module and sending the data to the data processing and analyzing unit; the data processing and analyzing unit compares and analyzes the received data and the feedback data and sends an analysis result to the instruction sending unit; and the instruction sending unit is used for sending an execution instruction to the signal indicating module according to the analysis result. The device and the method can realize the rapid delivery inspection of the vehicle air conditioner, can determine the wrong position and improve the detection efficiency of a factory.
Description
Technical Field
The invention relates to the technical field of vehicle-mounted air conditioner detection, in particular to a vehicle air conditioner offline detection device and method.
Background
The vehicle air conditioner is generally composed of units such as a compressor, an evaporation fan, a condensation fan, an electric heater, a temperature sensor, an air conditioner control module and the like, and the system structure is complex. Off-line detection needs to process a lot of data, and not only needs to send a control command to the air conditioner control module during detection, but also needs to consider the logical relationship among the units of the air conditioner.
The product is manually subjected to factory inspection, generally, an air conditioner controller is connected with an air conditioner, the air conditioner function is manually detected item by item, and whether the product is qualified or not is judged by watching the execution condition of the air conditioner. In addition, in the testing process, the voltage and the current of the air conditioner can change along with different testing items, and monitoring is also needed. Unless voltage and current detection recording instruments are used, it is difficult to monitor changes in these various parameters during the test while controlling the performance of the air conditioner. Therefore, it is difficult to ensure the accuracy and speed of detection in this manual inspection method.
Based on this, this application proposes a vehicle air conditioner offline detection device and method.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a vehicle air conditioner offline detection device.
In order to achieve the above purpose, the invention provides the following technical scheme:
a vehicle air conditioner offline detection device comprises a detection module, a data communication module, a signal acquisition module, a signal indication module and a controllable power supply;
the detection module comprises an industrial personal computer and a display screen communicated with the industrial personal computer;
the signal acquisition module and the signal indication module are both connected with the data communication module;
the data communication module is in bidirectional communication connection with the industrial personal computer, is in bidirectional connection with a controlled air conditioner through a communication wire harness, sends a control command to the tested air conditioner and receives a feedback signal of the tested air conditioner;
the controllable power supply is connected with the detection module in a bidirectional way through a serial port communication module and is connected with the tested air conditioner through a power supply wire harness;
the industrial personal computer is internally provided with a signal receiving unit, a data processing and analyzing unit and an instruction sending unit; the signal receiving unit is used for receiving the data acquired by the signal acquisition module and sending the data to the data processing and analyzing unit; the data processing and analyzing unit compares and analyzes the received data and the feedback data and sends an analysis result to the instruction sending unit; and the instruction sending unit is used for sending an execution instruction to the signal indicating module according to the analysis result.
Preferably, the data communication module comprises a digital-analog communication module and a CAN communication module, and the CAN communication module is used for communicating with the tested air conditioner, issuing a command for controlling the state of the air conditioner and returning to the current state of the air conditioner; the signal acquisition module comprises a temperature sensor and a button, and the signal indication module comprises an instrument and an alarm lamp;
the temperature sensor, the button, the instrument and the alarm lamp are all connected with the industrial personal computer through the digital-analog communication module.
Another object of the present invention is to provide a method for detecting an offline of a vehicle air conditioner, comprising the steps of:
step 1, configuring a scheme number, a test item, test parameters and a test flow in an industrial personal computer according to the structure and the test item requirement of a detected air conditioner, generating a test scheme and storing the test scheme in a scheme database;
step 2, inputting a configured scheme number in an industrial personal computer, automatically inquiring a scheme database by a test program, if the input scheme number is valid, enabling a test key to be started, and simultaneously loading test items and corresponding test parameters; after a test starting button is clicked, the program sends the test flow into an execution queue, then takes out instructions one by one, and enters a corresponding selection structure branch to execute the test flow; in the execution process, according to the command sent by the command sending unit and the command returned by the tested air conditioner received by the signal receiving unit through the data communication module, judging whether the execution action is qualified in the data processing and analyzing unit, and displaying the execution result through the display screen; if the current test item is a refrigeration test, the industrial personal computer sends a refrigeration command to the tested air conditioner, after waiting for a period of time, the air conditioner executes a refrigeration action and feeds the refrigeration action back to the industrial personal computer, and then the action execution is judged to be normal; otherwise, judging as abnormal execution;
after the current test project is finished, the next test project is continuously executed, and after all test processes are executed, the control indicator lamp is turned on to remind a worker to perform subsequent operation;
if the detection is needed to be continued, the communication wire harness and the power wire harness are connected to the next air conditioner, and the test starting button is clicked, so that the air conditioner can continue to work; if the air conditioners of different types need to be replaced and tested, only the corresponding scheme number needs to be input.
The off-line detection device and the off-line detection method for the vehicle air conditioner have the following beneficial effects:
(1) the invention can simulate the air conditioner controller, can configure various action flows, automatically control the air conditioner to execute corresponding actions, and automatically judge whether the air conditioner is qualified or not according to the received feedback signal and the voltage and current value in the test process;
(2) the invention can be used for the air conditioner production line to carry out quality detection on air conditioner finished products, and detect the integrity of each device, the correctness of the circuit connection of the electric control system, the running state of the air conditioner refrigerating and heating system and the like;
(3) the invention can send instructions to control the operation of the air conditioner, and can judge whether the working state of each module is normal or not through the operation state returned by the air conditioner controller. Secondly, transmitting data of a plurality of sensors in the air conditioner body to a detection device through a communication line, and comprehensively analyzing the received information by the detection device so as to judge whether the comprehensive condition of the air conditioner is qualified or not and give a conclusion;
(4) the invention can configure a plurality of test schemes on the industrial personal computer through test software, and is used for detecting various air conditioners with different specifications;
(5) the invention can be used for the air conditioner production line to carry out quality detection on air conditioner finished products, and detect the integrity of each device, the correctness of the circuit connection of the electric control system, the running state of the air conditioner refrigerating and heating system and the like. The detection device can automatically analyze test data, generate guide information and guide maintenance personnel to remove faults. The device can realize the quick factory inspection of vehicle air conditioner, can confirm wrong position, can improve the detection efficiency of mill.
Drawings
In order to more clearly illustrate the embodiments of the present invention and the design thereof, the drawings required for the embodiments will be briefly described below. The drawings in the following description are only some embodiments of the invention and it will be clear to a person skilled in the art that other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic structural view of an offline detection device of a vehicle air conditioner in embodiment 1 of the present invention;
FIG. 2 is a test scenario configuration flow;
fig. 3 is a flowchart of a vehicle air conditioner offline detection method according to embodiment 1 of the present invention.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention and can practice the same, the present invention will be described in detail with reference to the accompanying drawings and specific examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example 1
The invention provides a vehicle air conditioner offline detection device, which is suitable for a production line terminal station to perform offline detection on an air conditioner assembly, and particularly comprises a detection module, a data communication module, a signal acquisition module, a signal indication module and a controllable power supply, wherein the detection module is shown in figure 1;
the detection module comprises an industrial personal computer and a display screen communicated with the industrial personal computer;
the signal acquisition module and the signal indication module are both connected with the data communication module;
the data communication module is in bidirectional communication connection with the industrial personal computer, is in bidirectional connection with a controlled air conditioner through a communication wire harness, sends a control command to the tested air conditioner and receives a feedback signal of the tested air conditioner;
the controllable power supply is bidirectionally connected with the detection module through the serial port communication module and is connected with the tested air conditioner through a power supply wire harness;
the industrial personal computer is internally provided with a signal receiving unit, a data processing and analyzing unit and an instruction sending unit; the signal receiving unit is used for receiving the data acquired by the signal acquisition module and sending the data to the data processing and analyzing unit; the data processing and analyzing unit compares and analyzes the received data and the feedback data and sends an analysis result to the instruction sending unit; and the instruction sending unit is used for sending an execution instruction to the signal indicating module according to the analysis result.
Specifically, in this embodiment, the data communication module includes a digital-analog communication module and a CAN communication module, and the CAN communication module is used for communicating with the tested air conditioner, issuing a command for controlling the state of the air conditioner, and returning to the current state of the air conditioner; the signal acquisition module comprises a temperature sensor and a button, and the signal indication module comprises an instrument and an alarm lamp;
the temperature sensor, the button, the instrument and the alarm lamp are all connected with the industrial personal computer through the digital-analog communication module. The temperature sensor is used for detecting the ambient temperature and comparing and analyzing the ambient temperature with each temperature parameter fed back by the air conditioner, on one hand, the temperature sensor is used for detecting whether each sensor works normally, on the other hand, the temperature sensor can feed back to a detection program and is used for detecting the refrigeration or heating effect of the air conditioner; the meter displays the voltage and current values of the controllable power supply, which are different from each other when the air conditioner performs different actions. But for a specific air conditioner, the change of the values must be within a set range, otherwise, the change may be caused by disqualification of a part of the air conditioner; emergency stop of the button control device; the alarm lamp plays the roles of indicating and alarming; the industrial personal computer controls the start and stop of the controllable power supply through the serial port communication module and reads the voltage and current values in real time. The controllable power supply supplies power to the tested air conditioner.
Another objective of the present invention is to provide a method for detecting an air conditioner offline for a vehicle, wherein during the detection process, the detected air conditioner is connected to the detection cabinet through a communication harness, and is connected to the controllable power supply through a power harness, and an operator performs a test operation on a computer host of the detection cabinet. The detection device can flexibly configure test items and test processes according to the structure of the detected air conditioner and the requirements of the test items. The test scheme configuration flow is as shown in fig. 2, and for an air conditioner of a certain model, a corresponding test scheme may be configured. For different types of air conditioners, the detection time of each detection item has different requirements, and the detection standards in different seasons can also change. Therefore, technicians can configure corresponding detection processes and set multiple sets of test schemes according to actual working conditions.
The method comprises the following steps:
step 1, as shown in fig. 2, flexibly configuring a test item and a test flow according to the structure of a detected air conditioner and the requirements of the test item to obtain a test scheme; the test scheme can select corresponding test items according to the specific structure of the air conditioner, and configure corresponding test parameters. For example, a single-cold air conditioner can be configured with a single-cold air conditioner test scheme, and only a refrigeration test is performed without performing a heating test project. For example, different test currents can be configured for air conditioners with different power levels, and the test currents are used for judging whether the tested air conditioners are qualified or not. In addition, the test logic sequence can be properly adjusted according to actual needs, and the method has high flexibility;
step 2, as shown in fig. 3, inputting a configured scheme number into an industrial personal computer, automatically querying a database by a test program, and if the input scheme number is valid, enabling to start testing a key and simultaneously loading a test item and a corresponding test parameter; after a test starting button is clicked, the program sends the detected flows into an execution queue, then takes out instructions one by one, and enters a corresponding selection structure branch to execute the test flows; in the execution process, according to the command sent by the command sending unit and the command returned by the tested air conditioner received by the signal receiving unit through the data communication module, judging whether the execution action is qualified in the data processing and analyzing unit, and displaying the execution result through the display screen; if the current test item is a refrigeration test, the industrial personal computer sends a refrigeration command to the tested air conditioner, after waiting for a period of time, the air conditioner executes a refrigeration action and feeds the refrigeration action back to the industrial personal computer, and then the action execution is judged to be normal; otherwise, judging as abnormal execution;
after the current test project is finished, the next test project is continuously executed, and after all test processes are executed, the control indicator lamp is turned on to remind a worker to perform subsequent operation;
if the detection is needed to be continued, the communication wire harness and the power wire harness are connected to the next air conditioner, and the test starting button is clicked, so that the air conditioner can continue to work; if the air conditioners of different types need to be replaced and tested, only the corresponding scheme number needs to be input.
The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, and any simple modifications or equivalent substitutions of the technical solutions that can be obviously obtained by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (3)
1. The offline detection device for the vehicle air conditioner is characterized by comprising a detection module, a data communication module, a signal acquisition module, a signal indication module and a controllable power supply;
the detection module comprises an industrial personal computer and a display screen communicated with the industrial personal computer;
the signal acquisition module and the signal indication module are both connected with the data communication module;
the data communication module is in bidirectional communication connection with the industrial personal computer, is in bidirectional connection with a controlled air conditioner through a communication wire harness, sends a control command to the tested air conditioner and receives a feedback signal of the tested air conditioner;
the controllable power supply is connected with the detection module in a bidirectional way through a serial port communication module and is connected with the tested air conditioner through a power supply wire harness;
the industrial personal computer is internally provided with a signal receiving unit, a data processing and analyzing unit and an instruction sending unit; the signal receiving unit is used for receiving the data acquired by the signal acquisition module and sending the data to the data processing and analyzing unit; the data processing and analyzing unit compares and analyzes the received data and the feedback data and sends an analysis result to the instruction sending unit; and the instruction sending unit is used for sending an execution instruction to the signal indicating module according to the analysis result.
2. The offline detection device for the vehicle air conditioner according to claim 1, wherein the data communication module comprises a digital-analog communication module and a CAN communication module; the signal acquisition module comprises a temperature sensor and a button, and the signal indication module comprises an instrument and an alarm lamp;
the temperature sensor, the button, the instrument and the alarm lamp are all connected with the industrial personal computer through the digital-analog communication module.
3. The offline detection method for the vehicle air conditioner is characterized by comprising the following steps of:
step 1, configuring a scheme number, a test item, test parameters and a test flow in an industrial personal computer according to the structure and the test item requirement of a detected air conditioner, generating a test scheme and storing the test scheme in a scheme database;
step 2, inputting a configured scheme number in an industrial personal computer, automatically inquiring a scheme database by a test program, if the input scheme number is valid, enabling a test key to be started, and simultaneously loading test items and corresponding test parameters; after a test starting button is clicked, the program sends the test flow into an execution queue, then takes out instructions one by one, and enters a corresponding selection structure branch to execute the test flow; in the execution process, according to the command sent by the command sending unit and the command returned by the tested air conditioner received by the signal receiving unit through the data communication module, judging whether the execution action is qualified in the data processing and analyzing unit, and displaying the execution result through the display screen; if the current test item is a refrigeration test, the industrial personal computer sends a refrigeration command to the tested air conditioner, after waiting for a period of time, the air conditioner executes a refrigeration action and feeds the refrigeration action back to the industrial personal computer, and then the action execution is judged to be normal; otherwise, judging as abnormal execution;
after the current test project is finished, the next test project is continuously executed, and after all test processes are executed, the control indicator lamp is turned on to remind a worker to perform subsequent operation;
if the detection is needed to be continued, the communication wire harness and the power wire harness are connected to the next air conditioner, and the test starting button is clicked, so that the air conditioner can continue to work; if the air conditioners of different types need to be replaced and tested, only the corresponding scheme number needs to be input.
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| CN202010923940.3A CN111999090A (en) | 2020-09-04 | 2020-09-04 | Offline detection device and method for vehicle air conditioner |
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| CN112964479A (en) * | 2021-02-19 | 2021-06-15 | 昆山胜明海自动化科技有限公司 | Novel on-line performance detection system and method for automobile fragrance air conditioner |
| CN113010439A (en) * | 2021-04-28 | 2021-06-22 | 科东(广州)软件科技有限公司 | Equipment factory detection method and device, electronic equipment and storage medium |
| CN113595455A (en) * | 2021-06-21 | 2021-11-02 | 格力电器（武汉）有限公司 | Stepping motor electric control detection method and system |
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