CN114137335A - 7 cun TFT instrument function detection equipment - Google Patents
7 cun TFT instrument function detection equipment Download PDFInfo
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- CN114137335A CN114137335A CN202111346433.9A CN202111346433A CN114137335A CN 114137335 A CN114137335 A CN 114137335A CN 202111346433 A CN202111346433 A CN 202111346433A CN 114137335 A CN114137335 A CN 114137335A
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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
Abstract
The invention relates to a function detection device for a 7-inch TFT instrument, which comprises a detection device main body, a quick-change clamp, a test wire harness and an upper computer detection system, wherein the quick-change clamp is arranged on the detection device main body; the detection equipment main body comprises a rack, a case main body, a liquid crystal display screen, an operation keyboard and a power distribution cabinet, wherein the case main body, the liquid crystal display screen, the operation keyboard, the power distribution cabinet, a quick-change clamp and a test wire harness are all arranged on the rack; an industrial personal computer is arranged in the case main body, and the upper computer detection system is configured in the industrial personal computer; the upper computer detection system comprises a test item editing module and a test operation control module, wherein the test item editing module is used for editing an item to be tested according to an instrument to be tested, and the test control module is used for operation and display control during testing. The inspection products can be quickly switched by replacing the clamp wire harness; and the clamp wire harness has lower cost, and the investment cost of the tool can be effectively reduced.
Description
Technical Field
The invention relates to the technical field of instrument detection equipment, in particular to 7-inch TFT instrument function detection equipment.
Background
At present, with continuous iterative updating of commercial vehicle technology, the market of commercial vehicles with 7-inch screen instruments selected and matched in a cab increases year by year, but as 7-inch screen instrument platforms of some manufacturers are developed for the first time, and different customers of the 7-inch screen instruments have different requirements, the product dimension at the initial stage of a project is smaller, and the problems of production line rework, unsaturated production line, inflexible product switching and the like exist in a production line with higher automation degree to be developed.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a function detection device for a 7-inch TFT instrument, which is developed and used by upper computer detection software of a UDS protocol of the 7-inch TFT instrument through hardware modification and upgrade on the conventional universal detection device, so as to realize flexible detection of multiple varieties.
The technical scheme for solving the technical problems is as follows: a function detection device for a 7-inch TFT instrument comprises a detection device main body, a quick-change clamp, a test wire harness and an upper computer detection system;
the detection equipment main body comprises a rack, a case main body, a liquid crystal display screen, an operation keyboard and a power distribution cabinet, wherein the case main body, the liquid crystal display screen, the operation keyboard, the power distribution cabinet, a quick-change clamp and a test wire harness are all arranged on the rack;
the liquid crystal display screen, the control keyboard and the power distribution cabinet are in communication connection with the case main body; the instrument to be tested is arranged on the quick-change clamp and is in communication connection with the case main body through a test wire harness; the power distribution cabinet supplies power to the case main body, the liquid crystal display screen and the instrument to be tested.
An industrial personal computer is arranged in the case main body, and the upper computer detection system is configured in the industrial personal computer;
the upper computer detection system comprises a test item editing module and a test operation control module, wherein the test item editing module is used for editing an item to be tested according to an instrument to be tested, and the test control module is used for operation and display control during testing.
Further, the rack is of a four-layer structure, wherein the liquid crystal display screen is arranged on a first layer of the rack; the control keyboard, the quick-change clamp and the inspection wire harness are arranged on a second layer of the rack; the case main body is arranged on the third layer of the rack; the power distribution cabinet is arranged on the fourth layer of the rack.
Further, still be equipped with relay control module and frequency control module in the machine case main part, be equipped with controllable power supply and relay card in the switch board, relay control module and frequency control module all with controllable power supply and relay card electric connection are used for control switch board output test voltage and frequency.
Further, liquid crystal display is used for showing the man-machine interaction interface of host computer test system in real time, man-machine interaction interface includes:
the starting test key is used for starting when the function of the instrument is detected;
the state prompt is used for displaying the state of the current detection product;
a test stopping button used for stopping the situation of the current problem reason of the drainage when FAIL is found in the debugging program;
the test time is used for displaying the current test time;
the test log is used for displaying comparison check information of the current test item;
the bar code information and the serial number information are used for displaying the bar code information of the currently detected product and the serial number information of the production batch;
the test state display area is used for displaying the detection results of the set detection items;
and the test result state is used for displaying the final test result of the whole product.
Furthermore, the test control module comprises a key test item parameter setting submodule for checking the software number of a host factory, checking the version number of an IC software picture, writing and reading the version of IC hardware, checking a calibration version number, setting the off-line manufacturing date of a supplier and writing the serial number of the IC.
The invention has the beneficial effects that: 1. the inspection products can be quickly switched by replacing the clamp wire harness; the clamp wire harness is low in cost, so that the tool investment cost can be effectively reduced; 2. the automatic detection of the equipment is combined with the manual detection, the automatic detection of the equipment has hardware functions of analog quantity, switching value and the like, the liquid crystal display and the LED display of the instrument are confirmed by manual visual observation, the detection mode of complementary combination of the equipment and the manual work is realized, the detection rate of unqualified products is ensured, and the equipment investment cost is reduced; 3. the upper computer detection software is flexible in design and can be compatible with various types of tests by modifying configuration files.
Drawings
FIG. 1 is a schematic structural diagram of a main body of the low-cost 7-inch TFT instrument function detection equipment.
In the drawings, the components represented by the respective reference numerals are listed below:
1. frame, 2, machine case main part, 3, liquid crystal display, 4, control keyboard, 5, switch board.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
A function detection device for a 7-inch TFT instrument comprises a detection device main body, a quick-change clamp, a test wire harness and an upper computer detection system;
as shown in fig. 1, the detection device main body comprises a rack 1, a case main body 2, a liquid crystal display 3, an operation keyboard 4 and a power distribution cabinet 5, wherein the case main body 1, the liquid crystal display 3, the operation keyboard 4, the power distribution cabinet 5, a quick-change clamp and a test harness are all mounted on the rack 1;
the liquid crystal display screen 3, the control keyboard 4 and the power distribution cabinet 5 are in communication connection with the case main body 2; the instrument to be tested is arranged on the quick-change clamp and is in communication connection with the case main body 2 through a test wire harness; and the power distribution cabinet 5 supplies power to the case main body 2, the liquid crystal display screen 3 and the instrument to be tested.
The low-cost 7 cun TFT instrument function detection equipment main part adopts existing check-out test set standardized design, and the main part adopts the aluminium alloy to build, contains power, industrial computer, relay control module and frequency control module among wherein machine case main part 2, contains controllable power, relay card in the switch board. The frame 1 is a four-layer frame, and the liquid crystal display screen 3 is arranged on the first layer of the frame 1; the control keyboard 4 is arranged on the second layer of the rack 1, the case body 2 is arranged on the third layer of the rack 1, and the power distribution cabinet 4 is arranged on the fourth layer of the rack.
And the upper computer detection system is developed by applying a labview program development environment. The liquid crystal display is used for displaying a human-computer interaction interface of the upper computer test system in real time, and the human-computer interaction interface mainly comprises eight functional parts: the starting test key is used for starting when the function of the instrument is detected; the state prompt is used for displaying the state of the current detection product; a test stopping button used for stopping the situation of the current problem reason of the drainage when FAIL is found in the debugging program; the test time is used for displaying the current test time; a test LOG for displaying comparison check information of a current test item; the bar code information and the serial number information are mainly used for displaying the bar code information of the currently detected product and the serial number information of the production batch; the test state display area is mainly used for displaying the detection results of various set detection items, such as PASS (PASS sheet) display if the test is passed through a single item, and FAIL (FAIL active edge) display if the test is not passed through; and the test result state is used for displaying the final test result of the whole product, and the PASS can be obtained only if all the set test items PASS the final test result.
The upper computer detection system comprises a test item editing module DFDC _ SQ-X3000-X600_ Edit and a test operation control module DFDC _ SQ-X3000_ FCT.exe.
The test item editing module DFDC _ SQ-X3000-X600_ Edit is mainly used for test item editing.
The relevant control operation items of the test operation control module DFDC _ SQ-X3000_ FCT.exe are as follows:
1. [ NEW ]: new blank file
2. [ OPEN ]: opening existing. td script files
3. [ Save ]: saving the in-progress td script file
4. [ SaveAs ]: and storing the current editing td script file
5. [ Settings ]: and setting a saving path of the test report.
When a blank file is newly created, clicking a right mouse button on Test Items to select Add Items, popping up an Input Box dialog Box, inputting a Test item name in the Pthread Input item name, and adding a Test item. Clicking Save or [ SaveAs ] button can Save the current script file or Save the newly-created script file.
The parameter setting of the key test items of the DFDC _ SQ-X3000-X600_ Edit comprises the following steps: host factory software number-check-F1F 1, IC software picture version number-check-F195, IC hardware version-write and read operation-F193, calibration version number-check-FEF 2, supplier offline manufacturing date, IC serial number-write operation-F18C. The test item can be selected by finding the test item, canceling the previous purchase, and setting a subsequent SAVE key click for storage. 2F service refers to some service instructions proposed for instrumentation plant diagnostics, 2F service description: n _ For _ Tim parameter: 7D,00,00,7D (ID:18F00503) is one of the 2F service conditions; input _ match _ session parameter: matching the keyword with the conversation pattern; the Input _ match _ Decrypt parameter: is a decrypted matching key; 2F _ Command parameter: inputting and outputting a DID (direct memory access) command for controlling CAN (controller area network) communication; picture _ Name parameter: displaying the name of the picture (a meter picture prepared in advance) when the program runs; watch _ Picture parameter: whether the program needs to display the setting of the picture when running. And displaying the configured parameters on a human-computer interaction interface through DFDC _ SQ-X3000_ FCT.
The test operation control module DFDC _ SQ-X3000_ FCT.exe is mainly used for carrying out operation prompt during product test and mainly comprises the following components: after an operation interface is opened, clicking an OK button on a SelectProgram interface, clicking a StartTest button to start testing, then popping up a bar code scanning frame, scanning a bar code on the back of the instrument, placing the instrument on a clamp, electrifying, carrying out function testing and CAN communication operation, and when a program operates to confirm the mileage and oil consumption reset picture of the instrument: and after the ECU rebot is started, visually observing whether the picture Trip and the ODO data are zero or not, and if the picture Trip and the ODO data are zero, finishing the test and taking down the product.
In conclusion, when the process starts to operate, an operator opens a power supply and an air source of the equipment, connects a corresponding clamp wire harness, opens a man-machine interaction interface of the upper computer, selects a corresponding product model, and detects according to an operation prompt of the upper computer, so that a flexible detection mode combining automatic detection and manual detection of the equipment is realized.
The invention has the beneficial effects that: 1. the inspection products can be quickly switched by replacing the clamp wire harness; the clamp wire harness is low in cost, so that the tool investment cost can be effectively reduced; 2. the automatic detection of the equipment is combined with the manual detection, the automatic detection of the equipment has hardware functions of analog quantity, switching value and the like, the liquid crystal display and the LED display of the instrument are confirmed by manual visual observation, the detection mode of complementary combination of the equipment and the manual work is realized, the detection rate of unqualified products is ensured, and the equipment investment cost is reduced; 3. the upper computer detection software is flexible in design and can be compatible with various types of tests by modifying configuration files.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. A function detection device for a 7-inch TFT instrument is characterized by comprising a detection device main body, a quick-change clamp, a test wire harness and an upper computer detection system;
the detection equipment main body comprises a rack (1), a case main body (2), a liquid crystal display (3), an operation keyboard (4) and a power distribution cabinet (5), wherein the case main body (2), the liquid crystal display (3), the operation keyboard (4), the power distribution cabinet (5), a quick-change clamp and a test wire harness are all arranged on the rack (1);
the liquid crystal display screen (3), the control keyboard (4) and the power distribution cabinet (5) are in communication connection with the case main body (2); the instrument to be tested is arranged on the quick-change clamp and is in communication connection with the case main body (2) through a test wire harness; and the power distribution cabinet (5) supplies power to the case main body (2), the liquid crystal display screen (3) and the instrument to be tested.
An industrial personal computer is arranged in the case main body (2), and the upper computer detection system is configured in the industrial personal computer;
the upper computer detection system comprises a test item editing module and a test operation control module, wherein the test item editing module is used for editing an item to be tested according to an instrument to be tested, and the test control module is used for operation and display control during testing.
2. The function test device of a 7-inch TFT meter according to claim 1, wherein the rack (1) has a four-layer structure, and the liquid crystal display (3) is mounted on a first layer of the rack (1); a control keyboard (4), the quick-change clamp and the inspection harness are arranged on a second layer of the rack (1); the case main body (2) is arranged on the third layer of the rack (1); the power distribution cabinet (5) is arranged on the fourth layer of the rack (1).
3. The function detection equipment for the 7 inches TFT instrument according to claim 1 or 2, wherein a relay control module and a frequency control module are further arranged in the case main body (2), a controllable power supply and a relay card are arranged in the power distribution cabinet (5), and the relay control module and the frequency control module are both electrically connected with the controllable power supply and the relay card and are used for controlling the power distribution cabinet (5) to output test voltage and frequency.
4. The function detection equipment for a 7-inch TFT meter according to claim 1, wherein the liquid crystal display (3) is configured to display a human-computer interface of an upper computer test system in real time, and the human-computer interface includes:
the starting test key is used for starting when the function of the instrument is detected;
the state prompt is used for displaying the state of the current detection product;
a test stopping button used for stopping the situation of the current problem reason of the drainage when FAIL is found in the debugging program;
the test time is used for displaying the current test time;
the test log is used for displaying comparison check information of the current test item;
the bar code information and the serial number information are used for displaying the bar code information of the currently detected product and the serial number information of the production batch;
the test state display area is used for displaying the detection results of the set detection items;
and the test result state is used for displaying the final test result of the whole product.
5. The device for detecting the function of a 7-inch TFT instrument according to claim 1, wherein the test control module includes a key test item parameter setting sub-module, which is used for checking software numbers of a host factory, checking version numbers of IC software pictures, writing and reading IC hardware versions, checking calibrated version numbers, setting manufacturer offline manufacturing dates of suppliers, and writing IC serial numbers.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111346433.9A CN114137335A (en) | 2021-11-15 | 2021-11-15 | 7 cun TFT instrument function detection equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111346433.9A CN114137335A (en) | 2021-11-15 | 2021-11-15 | 7 cun TFT instrument function detection equipment |
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| CN114137335A true CN114137335A (en) | 2022-03-04 |
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| CN202111346433.9A Pending CN114137335A (en) | 2021-11-15 | 2021-11-15 | 7 cun TFT instrument function detection equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114646341A (en) * | 2022-03-25 | 2022-06-21 | 重庆长安汽车股份有限公司 | TFT combination instrument testing device and method |
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2021
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Patent Citations (7)
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| KR20000054516A (en) * | 2000-06-09 | 2000-09-05 | 주도식 | Method for Editing Circuit of Wiring Harness, and Multi Functional System for Testing Erroneous Wiring of Wiring Harness and Method thereof Using the Same |
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| CN114646341A (en) * | 2022-03-25 | 2022-06-21 | 重庆长安汽车股份有限公司 | TFT combination instrument testing device and method |
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