CN109697143A - A kind of electronic product off-line detection system and its detection method based on UDSZ diagnosis - Google Patents
A kind of electronic product off-line detection system and its detection method based on UDSZ diagnosis Download PDFInfo
- Publication number
- CN109697143A CN109697143A CN201711001077.0A CN201711001077A CN109697143A CN 109697143 A CN109697143 A CN 109697143A CN 201711001077 A CN201711001077 A CN 201711001077A CN 109697143 A CN109697143 A CN 109697143A
- Authority
- CN
- China
- Prior art keywords
- information
- electronic product
- test
- unit
- uds
- 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
- 238000001514 detection method Methods 0.000 title claims abstract description 71
- 238000003745 diagnosis Methods 0.000 title claims abstract description 33
- 238000012360 testing method Methods 0.000 claims abstract description 78
- 238000012545 processing Methods 0.000 claims abstract description 20
- 230000015556 catabolic process Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 230000003466 anti-cipated effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000000082 states acquisition Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012812 general test Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2273—Test methods
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2268—Logging of test results
Abstract
The invention discloses a kind of electronic product off-line detection systems based on UDSZ diagnosis, belong to automobile electronics technical field, including being detected electronic product and host computer, it is detected electronic product and passes through UDS detection, signal acquisition, signal processing and fault detection, host computer is transmitted signals to by CAN bus, host computer receives according to UDS agreement and judges that hardware port information, data result, signal processing information, set parameter, fault message are consistent with by the virtual condition information of UDS agreement query, then test passes through, and otherwise tests and does not pass through；Host computer includes obtaining information unit, query information state cell, judging detection unit and output test report unit.The present invention has the advantages that compact-sized simple, at low cost, using UDS detection protocol, reduces and develops offline test protocol workload, also can guarantee that diagnostic service is normal after there is inline diagnosis service, test to go offline.
Description
Technical field
The present invention relates to a kind of products detection system and its detection methods, more particularly to a kind of electricity based on UDSZ diagnosis
Sub- product off-line detection system and its detection method, belong to automobile electronics technical field.
Background technique
Automobile electronics require to carry out off-line test to product when entering the volume production stage, are defeated to interiors of products input
Out and other circuits are detected, avoid substandard product flow into client's hand in, general test product include simulation input interface,
Simulation output load, communication interface and upper computer control system, lower line testing device only focus on the hard of product to the test of product
Part circuit test does not test software logic related content.
Off-line detection system inputs analog signal to test product by input port, and test product is according to input interface shape
The state that state variation will test is sent to host computer, in the case where communications protocol parsing module is without mistake, host computer root
It is compared according to input state with the state detected, when the two state is inconsistent, judges that there are problems for input port circuit.
The agreement between test product and host computer is formulated during off-line test, many electronic products will be production before
Product test tailor upper and lower computer agreement, increase the workload of software design developer in this way, and if agreement is formulated not
It is perfect, it will affect product and be strayed into test pattern and can not work normally.
Summary of the invention
The main object of the present invention be to provide for it is a kind of based on UDSZ diagnosis electronic product off-line detection system and its
Detection method solves of the existing technology needed during off-line test for product test tailor upper and lower computer association
View, increases the workload of software design developer, and agreement is formulated not perfect influence product test mode and be can not work normally
The problem of.
The purpose of the present invention can reach by using following technical solution:
A kind of electronic product off-line detection system based on UDSZ diagnosis, including it is detected electronic product and host computer, institute
Detected electronic product is stated to be electrically connected by CAN bus and the host computer；The detected electronic product receives external hard
The input of part signal, by UDS detection, signal acquisition, signal processing and fault detection, transmits signals to institute by CAN bus
State host computer；The host computer received according to UDS agreement the hardware port information of the detected electronic product, data result,
Signal processing information, set parameter and fault message, and respectively by the hardware port information received, data result, signal
Processing information, set parameter, fault message are compared with by the virtual condition information of UDS agreement query, state consistency, then
Test passes through, and otherwise tests and does not pass through；The host computer includes obtaining information unit, being electrically connected with the acquisition information unit
Query information state cell, with the query information state cell be electrically connected judgement detection unit and with the judgement inspection
Survey the output test report unit that unit is electrically connected；The acquisition information unit is connect with CAN bus.
Preferable scheme is that including UDS detection module, signal acquisition module, signal in the detected electronic product
Processing module and breakdown judge module, the UDS detection module, the signal acquisition module, the signal processing module and institute
Breakdown judge module is stated to be electrically connected with the acquisition information unit.
In any of the above-described scheme preferably, the acquisition information unit passes through CAN bus and the detected electronics
Product is electrically connected, the expecting state information for obtaining information unit and being used to obtain the detected electronic product, described pre-
Phase status information includes hardware port information, signal processing information and fault message.
In any of the above-described scheme preferably, the query information state cell is detected by CAN bus with described
Electronic product is electrically connected, and the query information state cell receives the detected electronic product according to UDS agreement and collects
Virtual condition information, the virtual condition information include hardware port information, data result, set parameter and failure letter
Breath.
In any of the above-described scheme preferably, the judgement detection unit respectively with the query information state cell and
The output test report unit is electrically connected, and the judgement detection unit judges the quilt that the acquisition information unit obtains
The expecting state information and the query information state cell for detecting electronic product receive described detected according to UDS agreement
The collected virtual condition information of electronic product compares, than it is more consistent when, then test pass through, otherwise, test do not pass through.
In any of the above-described scheme preferably, the output test report unit is according to the survey for judging detection unit
Test result is recorded in EXCEL test result.
A kind of detection method of the electronic product off-line detection system based on UDSZ diagnosis, includes the following steps:
S1: host computer sends the test inline diagnosis test frame provided by UDS diagnostic service protocol contents, into diagnosis mould
Formula；
S2: host computer sends respective service requirement, and judges whether it is automatic testing and control；
S3: it is detected the content information of electronic product feedback respective service, host computer is according to the expecting state of anticipated input
Information is judged judge whether expecting state information is consistent with virtual condition information with the virtual condition information fed back；
S4: if it is expected that status information is consistent with virtual condition information, then test passes through, and is surveyed into next service
Examination；
S5: if it is expected that status information and virtual condition information are inconsistent, then testing and do not pass through, test loop detection 10
It is secondary, it is tested into next service；
S6: test result is recorded in document files.
Preferable scheme is that the UDS diagnostic service protocol contents include: the online service of 0x3E diagnostic equipment, 0x10 diagnosis
Scheme control service, 0x22 by ID read data service, 0x27 secure access service, 0x2e by ID write data service,
0x2f by ID carry out input and output control service and 0x31 routine control service one of or it is a variety of.
Advantageous effects of the invention: it is according to the invention based on UDSZ diagnosis electronic product off-line detection system and
Its detection method, the electronic product off-line detection system and its detection method provided by the invention based on UDSZ diagnosis, solves
It is of the existing technology to need to increase software and set for product test tailor upper and lower computer agreement during off-line test
The problem of workload of meter developer, agreement is formulated not perfect influence product test mode and be can not work normally；With structure
Compact simple, at low cost advantage reduces the workload for developing offline test protocol, and UDS agreement using UDS detection protocol
Also it can guarantee that product exits diagnostic service normal work after thering is inline diagnosis service, test to go offline, improve Product Safety.
Detailed description of the invention
Fig. 1 is a preferred embodiment of the electronic product off-line detection system according to the invention based on UDSZ diagnosis
Structural schematic diagram；
Fig. 2 is the upper of a preferred embodiment of the electronic product off-line detection system according to the invention based on UDSZ diagnosis
Position machine modular structure schematic diagram, the embodiment can be embodiment identical with Fig. 1, be also possible to the embodiment different from Fig. 1；
Fig. 3 is the upper of a preferred embodiment of the electronic product off-line test method according to the invention based on UDSZ diagnosis
Position machine software detection realizes logic chart.
In figure: 1- is detected electronic product, 2- host computer, and 21- obtains information unit, 22- query information state cell,
23- judges detection unit, and 24- exports test report unit.
Specific embodiment
To make the more clear and clear technical solution of the present invention of those skilled in the art, below with reference to examples and drawings
The present invention is described in further detail, and embodiments of the present invention are not limited thereto.
As depicted in figs. 1 and 2, a kind of electronic product off-line detection system based on UDSZ diagnosis provided in this embodiment,
Including being detected electronic product 1 and host computer 2, the detected electronic product 1 is electrical by CAN bus and the host computer 2
Connection；The detected electronic product 1 receives the input of external hardware signal, by UDS detection, signal acquisition, signal processing and
Fault detection transmits signals to the host computer 2 by CAN bus；The host computer 2 receives the quilt according to UDS agreement
Hardware port information, data result, signal processing information, set parameter and the fault message of electronic product 1 are detected, and respectively
By the hardware port information received, data result, signal processing information, set parameter, fault message and pass through UDS agreement
The virtual condition information of inquiry compares, state consistency, then test passes through, and otherwise tests and does not pass through；The host computer 2 includes obtaining
Take information unit 21, the query information state cell 22 being electrically connected with the acquisition information unit 21 and the query information
The judgement detection unit 23 and the output test report being electrically connected with the judgement detection unit 23 that state cell 22 is electrically connected
Accuse unit 24；The acquisition information unit 21 is connect with CAN bus.
It further, in the present embodiment, as depicted in figs. 1 and 2, include UDS inspection in the detected electronic product 1
Survey module, signal acquisition module, signal processing module and breakdown judge module, the UDS detection module, the signal acquisition mould
Block, the signal processing module and the breakdown judge module are electrically connected with the acquisition information unit 21；The acquisition
Information unit 21 is electrically connected by CAN bus and the detected electronic product 1, and the acquisition information unit 21 is for obtaining
The expecting state information of the detected electronic product 1, the expecting state information include hardware port information, signal processing letter
Breath and fault message.
Further, in the present embodiment, as depicted in figs. 1 and 2, the query information state cell 22 is total by CAN
Line and the detected electronic product 1 are electrically connected, and the query information state cell 22 receives described tested according to UDS agreement
The collected virtual condition information of electronic product 1 is surveyed, the virtual condition information includes hardware port information, data result, institute
Parameter and fault message are set；The judgement detection unit 23 is surveyed with the query information state cell 22 and the output respectively
It tries reporting unit 24 to be electrically connected, the judgement detection unit 23 judges that the described of acquisition information unit 21 acquisition is detected
The expecting state information of electronic product 1 and the query information state cell 22 receive described detected according to UDS agreement
The collected virtual condition information of electronic product 1 compares, than it is more consistent when, then test pass through, otherwise, test do not pass through；Institute
Output test report unit 24 is stated according to the test result of the judgement detection unit 23, test result is recorded in EXCEL.
As shown in figure 3, a kind of detection of electronic product off-line detection system based on UDSZ diagnosis provided in this embodiment
Method includes the following steps:
S1: host computer sends the test inline diagnosis test frame provided by UDS diagnostic service protocol contents, into diagnosis mould
Formula；
S2: host computer sends respective service requirement, and judges whether it is automatic testing and control；
S3: it is detected the content information of electronic product feedback respective service, host computer is according to the expecting state of anticipated input
Information is judged judge whether expecting state information is consistent with virtual condition information with the virtual condition information fed back；
S4: if it is expected that status information is consistent with virtual condition information, then test passes through, and is surveyed into next service
Examination；
S5: if it is expected that status information and virtual condition information are inconsistent, then testing and do not pass through, test loop detection 10
It is secondary, it is tested into next service；
S6: test result is recorded in document files.
Further, in the present embodiment, the UDS diagnostic service protocol contents include: the online service of 0x3E diagnostic equipment,
0x10 diagnostic mode control service, 0x22 read data service, 0x27 secure access service, 0x2e by ID and write data by ID
Service, 0x2f are serviced by ID progress input and output control and 0x31 routine controls one of service or a variety of.
In conclusion in the present embodiment, according to the electronic product off-line test system based on UDSZ diagnosis of the present embodiment
System and its detection method, the electronic product off-line detection system and its detection method provided in this embodiment based on UDSZ diagnosis,
It solves and of the existing technology needs to increase for product test tailor upper and lower computer agreement during off-line test
The problem of workload of software design developer, agreement is formulated not perfect influence product test mode and be can not work normally；Tool
Have the advantages that compact-sized simple, at low cost, using UDS detection protocol, reduces the workload for developing offline test protocol, and
UDS agreement also can guarantee that product exits diagnostic service normal work after having inline diagnosis service, test to go offline, improve product safety
Property.
The above, further embodiment only of the present invention, but scope of protection of the present invention is not limited thereto, and it is any
Within the scope of the present disclosure, according to the technique and scheme of the present invention and its design adds those familiar with the art
With equivalent substitution or change, protection scope of the present invention is belonged to.
Claims (8)
1. a kind of electronic product off-line detection system based on UDSZ diagnosis, including it is detected electronic product (1) and host computer
(2), which is characterized in that the detected electronic product (1) is electrically connected by CAN bus and the host computer (2)；The quilt
It detects electronic product (1) and receives the input of external hardware signal, by UDS detection, signal acquisition, signal processing and fault detection,
The host computer (2) are transmitted signals to by CAN bus；The host computer (2) receives the detected electricity according to UDS agreement
Hardware port information, data result, signal processing information, set parameter and the fault message of sub- product (1), and will connect respectively
The hardware port information that receives, data result, signal processing information, set parameter, fault message and pass through UDS agreement query
Virtual condition information compare, state consistency, then test pass through, otherwise test and do not pass through；The host computer (2) includes obtaining
Information unit (21), the query information state cell (22) being electrically connected with acquisition information unit (21) and the inquiry
The judgement detection unit (23) and judge what detection unit (23) were electrically connected with described that information state unit (22) is electrically connected
It exports test report unit (24)；The acquisition information unit (21) connect with CAN bus.
2. a kind of electronic product off-line detection system based on UDSZ diagnosis according to claim 1, which is characterized in that institute
Stating in detected electronic product (1) includes UDS detection module, signal acquisition module, signal processing module and breakdown judge mould
Block, the UDS detection module, the signal acquisition module, the signal processing module and the breakdown judge module are and institute
It states and obtains information unit (21) electric connection.
3. a kind of electronic product off-line detection system based on UDSZ diagnosis according to claim 1, which is characterized in that institute
It states acquisition information unit (21) to be electrically connected by CAN bus and the detected electronic product (1), the acquisition information unit
(21) for obtaining the expecting state information of the detected electronic product (1), the expecting state information includes hardware port
Information, signal processing information and fault message.
4. a kind of electronic product off-line detection system based on UDSZ diagnosis according to claim 3, which is characterized in that institute
It states query information state cell (22) to be electrically connected by CAN bus and the detected electronic product (1), the query information
State cell (22) receives the detected collected virtual condition information of electronic product (1), the reality according to UDS agreement
Status information includes hardware port information, data result, set parameter and fault message.
5. a kind of electronic product off-line detection system based on UDSZ diagnosis according to claim 4, which is characterized in that institute
It states and judges that detection unit (23) is electric with the query information state cell (22) and the output test report unit (24) respectively
Property connection, it is described judgement detection unit (23) judge it is described acquisition information unit (21) acquisition the detected electronic product
(1) the detected electronics that expecting state information and the query information state cell (22) is received according to UDS agreement
The collected virtual condition information of product (1) compares, than it is more consistent when, then test pass through, otherwise, test do not pass through.
6. a kind of electronic product off-line detection system based on UDSZ diagnosis according to claim 5, which is characterized in that institute
Output test report unit (24) is stated according to the test result of judgement detection unit (23), test result is recorded
In EXCEL.
7. a kind of detection of the electronic product off-line detection system based on UDSZ diagnosis as claimed in any one of claims 1 to 6
Method, which comprises the steps of:
S1: host computer sends the test inline diagnosis test frame provided by UDS diagnostic service protocol contents, into diagnostic mode；
S2: host computer sends respective service requirement, and judges whether it is automatic testing and control；
S3: it is detected the content information of electronic product feedback respective service, host computer is according to the expecting state information of anticipated input
Judged judge whether expecting state information is consistent with virtual condition information with the virtual condition information fed back；
S4: if it is expected that status information is consistent with virtual condition information, then test passes through, and is tested into next service；
S5: if it is expected that status information and virtual condition information are inconsistent, then testing and do not pass through, and test loop detects 10 times, into
Enter next service to be tested；
S6: test result is recorded in document files.
8. a kind of detection method of electronic product off-line detection system based on UDSZ diagnosis according to claim 7,
Be characterized in that, the UDS diagnostic service protocol contents include: the online service of 0x3E diagnostic equipment, 0x10 diagnostic mode control service,
0x22 by ID read data service, 0x27 secure access service, 0x2e by ID write data service, 0x2f carried out by ID it is defeated
Enter one of output control service and the control service of 0x31 routine or a variety of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711001077.0A CN109697143A (en) | 2017-10-24 | 2017-10-24 | A kind of electronic product off-line detection system and its detection method based on UDSZ diagnosis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711001077.0A CN109697143A (en) | 2017-10-24 | 2017-10-24 | A kind of electronic product off-line detection system and its detection method based on UDSZ diagnosis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109697143A true CN109697143A (en) | 2019-04-30 |
Family
ID=66227766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711001077.0A Pending CN109697143A (en) | 2017-10-24 | 2017-10-24 | A kind of electronic product off-line detection system and its detection method based on UDSZ diagnosis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109697143A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110750087A (en) * | 2019-09-25 | 2020-02-04 | 浙江合众新能源汽车有限公司 | EOL detection method and device for avoiding mistaken deletion of vehicle fault and storage medium |
| CN116224201A (en) * | 2023-05-09 | 2023-06-06 | 苏州清研精准汽车科技有限公司 | Diagnosis test method and device for battery pack offline detection equipment and diagnosis equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120126873A (en) * | 2011-05-13 | 2012-11-21 | 현대자동차주식회사 | System for Dynamic Analysis of Embedded Software of Vehicle using UDS |
| CN104076814A (en) * | 2014-07-09 | 2014-10-01 | 哈尔滨工业大学 | Automobile ECU measurement system based on hardware-in-loop simulation |
| CN105607623A (en) * | 2016-02-26 | 2016-05-25 | 东南（福建）汽车工业有限公司 | Automobile production line offline detection method |
| CN106407066A (en) * | 2016-09-26 | 2017-02-15 | 北京经纬恒润科技有限公司 | An end of line detection method and system for electronic products |
| CN106526346A (en) * | 2015-09-11 | 2017-03-22 | 联合汽车电子有限公司 | Off-line testing system and method for electric vehicle |
-
2017
- 2017-10-24 CN CN201711001077.0A patent/CN109697143A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120126873A (en) * | 2011-05-13 | 2012-11-21 | 현대자동차주식회사 | System for Dynamic Analysis of Embedded Software of Vehicle using UDS |
| CN104076814A (en) * | 2014-07-09 | 2014-10-01 | 哈尔滨工业大学 | Automobile ECU measurement system based on hardware-in-loop simulation |
| CN106526346A (en) * | 2015-09-11 | 2017-03-22 | 联合汽车电子有限公司 | Off-line testing system and method for electric vehicle |
| CN105607623A (en) * | 2016-02-26 | 2016-05-25 | 东南（福建）汽车工业有限公司 | Automobile production line offline detection method |
| CN106407066A (en) * | 2016-09-26 | 2017-02-15 | 北京经纬恒润科技有限公司 | An end of line detection method and system for electronic products |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110750087A (en) * | 2019-09-25 | 2020-02-04 | 浙江合众新能源汽车有限公司 | EOL detection method and device for avoiding mistaken deletion of vehicle fault and storage medium |
| CN116224201A (en) * | 2023-05-09 | 2023-06-06 | 苏州清研精准汽车科技有限公司 | Diagnosis test method and device for battery pack offline detection equipment and diagnosis equipment |
| CN116224201B (en) * | 2023-05-09 | 2023-08-04 | 苏州清研精准汽车科技有限公司 | Diagnosis test method and device for battery pack offline detection equipment and diagnosis equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102087334B (en) | High-reliability digital quantity acquisition system | |
| CN105203980B (en) | A kind of power quality self-checking system and its self checking method | |
| CN108804261A (en) | The test method and device of connector | |
| CN105372536B (en) | Aviation electronics general-utility test platform | |
| CN106407066A (en) | An end of line detection method and system for electronic products | |
| CN106407059A (en) | Server node testing system and method | |
| CN206673990U (en) | A kind of detecting system of communication message | |
| CN106646186A (en) | Batch testing method and batch testing system for chips | |
| CN109697143A (en) | A kind of electronic product off-line detection system and its detection method based on UDSZ diagnosis | |
| CN104951421A (en) | Automatic numbering and type recognition method and device for serial bus communication devices | |
| CN104932484B (en) | A kind of CAN car body controller PCB method of testings | |
| CN115470064A (en) | Security test method and device for device to be tested, electronic device and storage medium | |
| CN107748560A (en) | A kind of program control direct fault location case of pure electric vehicle controller | |
| CN109131937A (en) | A kind of distribution automatic Testing System of UAV and method | |
| CN201607507U (en) | Intelligent backboard test system | |
| CN110488711B (en) | Mixing station detecting system | |
| CN106199373A (en) | Electronic equipment intelligent failure diagnosis method and device | |
| CN218213316U (en) | Back plate, testing machine and testing system | |
| CN107064853A (en) | Electric energy meter pressure-resistant test system and method with test voltage automatic switching function | |
| CN110888011A (en) | In-situ test method and test device based on testability modeling | |
| CN211264169U (en) | Automatic testing device for logic control unit | |
| CN102289577B (en) | Troubleshooting method based on maximum repair time minimization | |
| CN205139289U (en) | Distribution test system of on -vehicle rack of 200T type row accuse | |
| CN115129021B (en) | Method and device for testing vehicle-mounted Ethernet | |
| CN108020241B (en) | Fault testing method and system for photoelectric theodolite |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190430 |