CN104237765B - It is integrated in the FCT automatization test system of ICT equipment - Google Patents
It is integrated in the FCT automatization test system of ICT equipment Download PDFInfo
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Abstract
The present invention provides a kind of FCT automatization test system being integrated in ICT equipment, ICT equipment includes industrial computer, ICT moving parts control unit, ICT detector unit and needle-bar, and FCT automatization test system includes FCT signal deteching circuit unit, ICT/FCT Collaborative Control circuit unit and ICT/FCT strong and weak electricity isolation circuit unit；ICT equipment is connected with ICT/FCT Collaborative Control circuit unit, FCT signal deteching circuit unit communication respectively；ICT equipment, FCT signal deteching circuit unit electrically connect with ICT/FCT strong and weak electricity isolation circuit unit respectively, and needle-bar electrically connects with ICT/FCT strong and weak electricity isolation circuit unit；ICT/FCT strong and weak electricity isolation circuit unit is according to the connection between ICT/FCT Collaborative Control circuit unit instruction switching needle-bar and ICT detector unit and between needle-bar and FCT signal deteching circuit unit.The FCT automatization test system of the ICT equipment that is integrated in of the present invention achieves ICT Yu FCT integrated testing, and automaticity is high, improves testing efficiency；The cost of promoting integrated testing is greatly reduced, and reduces the test labor intensity of tester.
Description
Technical field
The present invention relates to air conditioner test field, particularly relate to one and can be integrated in ICT(In Circuit Tester,
In-circiut tester) the FCT(Function Circuit Testing of equipment, functional test) automatization test system.
Background technology
At present, controller manufacturing enterprise is at ICT(In Circuit Tester, In-circiut tester), FCT(Function
Circuit Testing, functional test) test generally has 2 kinds of modes: 1, ICT, FCT split test；2, ICT, FCT integration
Test；The first is the technology that early stage is commonly used in the industry, the second be then in the recent period in relatively advanced test mode, be also not
The trend come.In actual ICT+FCT integrated measurement system, the various ICT/FCT integrated testing collection in current industry
One-tenth system has a fatal common fault cost much more expensive, and reason is its superseded enterprise original ICT test system, existing
Mechanical part and carton structure, this type of integrated measurement system, real to promote cost the highest, utilization of resources rate
Extremely low, then the benefit brought for enterprise is just extremely limited.Additionally, in existing ICT/FCT integrated measurement system, ICT is weak
The mode switching the switching of commonly used high/low pin between electrical testing is connected with FCT forceful electric power measurement circuit switches over, in reality
In application, often occurring that due to thimble thimble location is the most right, partially, thimble bends thimble pressure, and thimble grade not in place connects due to thimble
Touch the series of problems of property, often make test instability, and once strong and weak electricity thimble surprisingly contacts, will result in burning and test system
System, the danger of circuit-under-test plate, this will be fatefulue damage to test system.The high cost of this test system, excessive risk
Expose this test system and there is problem demanding prompt solution.
Summary of the invention
In order to overcome the deficiencies in the prior art, the present invention provides a kind of FCT automatic test system being integrated in ICT equipment
System, it achieves ICT Yu FCT integrated testing, improves testing efficiency；The cost of promoting integrated testing is greatly reduced, and
Reduce the test labor intensity of tester.For achieving the above object, technical scheme is as follows:
A kind of FCT automatization test system being integrated in ICT equipment, ICT equipment includes industrial computer, ICT moving parts control
Unit processed, IC detector unit and needle-bar, described FCT automatization test system includes FCT signal deteching circuit unit, ICT/FCT
Collaborative Control circuit unit and ICT/FCT strong and weak electricity isolation circuit unit:
Described ICT equipment respectively with described ICT/FCT Collaborative Control circuit unit, FCT signal deteching circuit unit communication
Connect；
Described ICT equipment, FCT signal deteching circuit unit are electric with described ICT/FCT strong and weak electricity isolation circuit unit respectively
Connecting, described needle-bar electrically connects with described ICT/FCT strong and weak electricity isolation circuit unit；
Described ICT/FCT Collaborative Control circuit unit is according to the instruction of industrial computer and the state of moving parts of ICT equipment
Parameter signal controls FCT signal deteching circuit unit and the duty of ICT moving parts control unit；
Described ICT/FCT strong and weak electricity isolation circuit unit switches according to ICT/FCT Collaborative Control circuit unit switching signal
Connection between described needle-bar and described ICT detector unit and between described needle-bar and described FCT signal deteching circuit unit.
More preferably, described FCT signal deteching circuit unit includes:
Power module, for providing working power to circuit-under-test plate；
Signals collecting subelement, for being compared with parameter preset by the test parameter of circuit-under-test plate, and will generate
Comparison result signal is sent to described industrial computer；
Communicating circuit integration module, is used for realizing described FCT signal deteching circuit unit and described ICT equipment and ICT/
Communication between FCT Collaborative Control circuit unit.
More preferably, described signals collecting subelement includes:
Light current voltage acquisition module, for being acquired the light current voltage of circuit-under-test plate by ADC Acquisition Circuit；
Forceful electric power voltage acquisition module, adopts for the forceful electric power voltage of circuit-under-test plate being carried out isolation by voltage transformer
Sample, draws magnitude of voltage by the way of ADC calculates；
Fault simulation module, for cutting fault simulation signal by the logical time of logic relay；
Numeral temperature-sensitive bag module, for simulating the temperature spot setting load；
Electric expansion valve circuit automatic detection module, for detecting the aperture of electric expansion valve.
More preferably, described communicating circuit integration module integrated RS485 communicating circuit, RS232 communicating circuit, CAN are led to
News circuit, HBS communicating circuit and/or zero live wire communicating circuit.
More preferably, described signals collecting subelement also includes remote signal intelligence sending module；
Described remote signal intelligence sending module receives, by described RS485 communicating circuit, the control that described industrial computer sends
Command signal, carries out pattern, temperature spot and the control of each load in real time according to described control instruction signal to circuit-under-test plate plate.
More preferably, described ICT/FCT power electric isolating circuit includes organizing double-gate relay more；
More organize described double-gate relay and be used for switching between described needle-bar and described ICT detector unit and described needle-bar and institute
State the connection between FCT signal deteching circuit unit.
More preferably, the described double-gate relay model of many groups is identical；
The coils from parallel connection of coils of described double-gate relay of organizing, in same circuit, organize described double-gate relay start-stop simultaneously more more.
More preferably, described needle-bar is respectively by ICT bus and FCT bus and described ICT/FCT power electric isolating circuit list
Unit connects；
The normally-closed contact of described double-gate relay connects ICT bus, and normally opened contact connects FCT bus, is entering circuit-under-test plate
During row test, first carry out ICT test, carry out FCT test afterwards.
More preferably, described FCT automatization test system also includes scan module and data memory module, described scan module
Communicate to connect with described industrial computer respectively with data memory module, the bar code of described scan module scanning circuit-under-test plate, and
Bar code information is sent to described industrial computer, and described industrial computer is stored in described number by corresponding with test result for described bar code information
According in memory module.
More preferably, described FCT automatization test system also includes remote control table, and described remote control table is with described
Industrial computer communicates to connect, and is used for debugging described industrial computer, carrying out database access operation and testing standard configuration.
The invention has the beneficial effects as follows:
The FCT automatization test system of the ICT equipment that is integrated in of the present invention, it is achieved that ICT Yu FCT integrated testing, real
Existing automatic test, decreases tester's configuration, improves testing efficiency；Realize using PC that FCT test item is carried out accurately
Configuration and judgement, improve the quality level of product；The cost of promoting integrated testing is greatly reduced simultaneously, and reduces test
The test labor intensity of personnel.
Accompanying drawing explanation
Fig. 1 is the system block diagram of FCT automatization test system one embodiment of the ICT equipment that is integrated in of the present invention；
Fig. 2 is the flow chart that ICT test and FCT test mutual synthetic operation；
Fig. 3 is the FCT automatization test system test flow chart being integrated in ICT equipment；
The schematic diagram of Fig. 4 ICT/FCT strong and weak electricity isolated location one embodiment.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples pair
The FCT automatization test system of the ICT equipment that is integrated in of the present invention is further elaborated.Should be appreciated that this place is retouched
The specific embodiment stated only in order to explain the present invention, is not intended to limit the present invention.
Referring to figs. 1 through Fig. 4, FCT automatization test system one embodiment of the ICT equipment that is integrated in of the present invention, ICT(In
Circuit Tester, In-circiut tester) equipment includes industrial computer 1, ICT moving parts control unit 3, ICT detector unit 10
With needle-bar 2, described FCT automatization test system includes FCT signal deteching circuit unit 7, ICT/FCT Collaborative Control circuit unit
6 and ICT/FCT strong and weak electricity isolation circuit units 8；
FCT signal deteching circuit unit 7 and ICT/FCT Collaborative Control circuit unit 6 electrically connects, and both are integrally disposed in
On FCT circuit board 5；
Using control bus to be connected between ICT moving parts control unit 3 and moving parts 4, ICT moving parts controls single
Unit 3 controls the operation of moving parts 4.Moving parts 4 can rise or fall motion, in testing, is used for fixing or departing from position
PCB main board on needle-bar, conveniently carries out testing or terminate test.ICT moving parts control unit 3 is assisted with ICT/FCT respectively
Connecting with being controlled bus by coordination between control circuit unit 6 and FCT signal deteching circuit unit 7, needle-bar 2 is strong with ICT/FCT
Light current isolation circuit unit 8 is connected by ICT bus and FCT bus respectively: FCT signal deteching circuit unit 7, ICT/FCT are collaborative
Control circuit unit 6 and ICT detector unit 10 is powered by ICT power supply 9.
Described ICT equipment respectively with ICT/FCT Collaborative Control circuit unit 6, FCT signal deteching circuit unit 7 communication link
Connect；The industrial computer 1 of the most described ICT equipment, ICT moving parts control unit 3, ICT detector unit 10 are worked in coordination with ICT/FCT respectively
Control circuit unit 6, FCT signal deteching circuit unit 7 communicate to connect；
ICT the detector unit 10 and FCT signal deteching circuit unit 7 of described ICT equipment respectively with ICT/FCT strong and weak electricity every
Connecting from circuit unit 8, needle-bar 2 electrically connects with ICT/FCT strong and weak electricity isolation circuit unit 8；ICT/FCT Collaborative Control circuit list
Unit 6 according to the control instruction signal of industrial computer 1 and the state parameter such as limit switch feedback signal of the moving parts of ICT equipment,
Moving parts up/down movable signal, ICT test PASS(passes through) signal such as signal controls FCT signal deteching circuit unit 7 He
The duty of ICT moving parts control unit 3.The automatization test system testing process of the present embodiment is as follows: by tested PCB
After mainboard is placed on needle-bar 2, press moving parts 4 start button drawn by ICT moving parts control unit 3, motor-driven portion
Part 4 moves to the predeterminated position of limit switch, after moving parts 4 puts in place, sends industrial computer 1 and starts to test signal, now
Industrial computer 1 sends control signal to start to perform ICT test by ICT detector unit 10.After ICT has tested, industrial computer 1 to
ICT moving parts control unit 3 sends test result PASS/FAIL signal, if FAIL signal, ICT/FCT Collaborative Control electricity
The rising signals coordinating to control in bus is only passed to moving parts 4 by road unit 6, and moving parts 4 rises, and tester takes out
Tested PCB mainboard.If it is PASS signal that industrial computer 1 sends test result, ICT/FCT Collaborative Control circuit unit 6 then will control
The rising signals of moving parts 4 is blocked and ignores, and sends the status signal that limit switch " puts in place " and feed back to ICT machine
Dynamic component control unit 3, makes moving parts 4 maintain the original state, and ICT/FCT Collaborative Control circuit unit 6 is signaled to simultaneously
Industrial computer 1, makes test software interface enter FCT test mode；After FCT has tested, according to system requirements, ICT/FCT assists
Sending control signal with control circuit unit 6 drives moving parts 4 to rise, and recovers limit switch state detection, motor-driven portion
The control authority of part 4 hands to ICT moving parts control unit 3 completely, re-starts ICT and the FCT test of a new round.
ICT/FCT strong and weak electricity isolation circuit unit 8 is cut according to ICT/FCT Collaborative Control circuit unit 6 switching command signal
Connection between needle exchange bed 2 and ICT detector unit 10 and between needle-bar 2 and FCT signal deteching circuit unit 7, wherein ran
Cheng Wei, controls moving parts 4 at above-mentioned ICT/FCT Collaborative Control circuit unit 6, ICT moving parts control unit 3 returns
While PASS signal, i.e. detect that ICT tests PASS signal, when producing FCT continuation test request, by ICT/FCT strong and weak electricity
Isolation circuit unit 8 enables, and under enabled state, the double-gate relay in ICT/FCT strong and weak electricity isolation circuit unit 8 will switching
To normally opened end, due to the single-ended connection performance of relay, now only constitute the physical connection between FCT circuit board 5 and needle-bar 2,
Now test pattern is switched to FCT test mode；It addition, perform motor-driven portion at above-mentioned ICT/FCT Collaborative Control circuit unit 6
Part 4 rises, while moving parts 4 control hands to ICT moving parts control unit 3, by strong and weak electricity shielding system forbidden energy,
Double-gate relay in ICT/FCT strong and weak electricity isolation circuit unit 8 switches to normal-closed end, only constitutes ICT detector unit 10 and pin
The physical connection of bed 2.
More preferably, as a kind of embodiment, FCT signal deteching circuit unit 7 includes:
Power module, for providing working power to circuit-under-test plate；It is strong and weak that described power module is also disposed at ICT/FCT
In electric isolating circuit unit 8.
Signals collecting subelement, for being compared with parameter preset by the test parameter of circuit-under-test plate, and will generate
Comparison result signal is sent to described industrial computer；
Communicating circuit integration module, is used for realizing described FCT signal deteching circuit unit 7 and described ICT equipment and ICT/
Communication between FCT Collaborative Control circuit unit 6.
Preferably, described signals collecting subelement includes: light current voltage acquisition module, forceful electric power voltage acquisition module, fault
Analog module, numeral temperature-sensitive bag module and electric expansion valve circuit automatic detection module, described light current voltage acquisition module is used for
By ADC(Analog-to-Digital Converter, A/D converter or analog/digital converter) Acquisition Circuit pair
The light current voltage of circuit-under-test plate is acquired；Forceful electric power voltage acquisition module, for electric to tested forceful electric power by voltage transformer
Pressure carries out isolation sampling, draws magnitude of voltage by the way of ADC calculates；Fault simulation module, for patrolling by logic relay
The time of collecting incision fault simulation signal；Numeral temperature-sensitive bag module, for simulating the temperature spot setting load；Electric expansion valve circuit
Automatic detection module, for detecting aperture or other functional parameter of electric expansion valve.
Described communicating circuit integration module integrated RS485 communicating circuit, RS232 communicating circuit, CAN communicating circuit,
HBS communicating circuit and/or zero live wire communicating circuit etc..
More preferably, as a kind of embodiment, described signals collecting subelement also includes that remote signal intelligence sends mould
Block；Described remote signal intelligence sending module receives, by described RS485 communicating circuit, the control instruction that described industrial computer sends
Signal, carries out pattern, temperature spot and the control of each load in real time according to described control instruction signal to circuit-under-test plate plate.Remote control
The practical work process of signal intelligent sending module is, the test logical order that industrial computer is preset according to tester, will produce
The various remote signals such as remote-controlled start-up freezes, heat, in the present invention, industrial computer sends remote signal by RS485 communication and inputs
Remote control mode (is cancelled and originally being sent by the produced remote control mode of personnel's manual key), through remote signal intelligence sending module to tested
Mainboard receives hair and goes out.
More preferably, as a kind of embodiment, described ICT/FCT power electric isolating circuit 8 includes organizing double-gate relay more
Device (J1, J2), more organize described double-gate relay and is used for switching between needle-bar 2 and ICT detector unit 10 and needle-bar 2 and FCT signal
Connection between testing circuit unit 7.The operation principle of double-gate relay is as shown in Figure 4.
Preferably, the described double-gate relay model of many groups is identical, and the coils from parallel connection of coils of described double-gate relay of organizing same more
In circuit, the described double-gate relay of many groups start-stop simultaneously.
Needle-bar 2 is connected with ICT/FCT strong and weak electricity isolation circuit unit 8 by ICT bus and FCT bus respectively, and double-gate continues
The normally-closed contact of electrical equipment connects ICT bus, and normally opened contact connects FCT bus, when testing circuit-under-test plate, first carries out ICT
Test, carries out FCT test afterwards, and concrete testing process is as shown in Figures 2 and 3.
Multiple described double-gate relays use same power mode, and the short circuit risk between circuit can be avoided to damage tested electricity
Road plate, also avoids interfering of circuit simultaneously.
More preferably, as a kind of embodiment, FCT automatization test system also includes scan module and data storage mould
Block, described scan module and data memory module communicate to connect with described industrial computer respectively, and described scan module scans tested electricity
The bar code of road plate, and bar code information is sent to described industrial computer, described industrial computer is by described bar code information and test result
Correspondence is stored in described data memory module.Test system scans bar code the record of every piece of testing host by scanner
Enter system, after test completes, test result is preserved, so incite somebody to action in later product quality surveillance and trace back process
To great role.
Preferably, described FCT automatization test system also includes remote control table, and described remote control table is with described
Industrial computer communicates to connect, and is used for debugging described industrial computer, carrying out database access operation and testing standard configuration.Achieve data
Library storage test result, remote debugging test main frame and long-range monitoring test data.
This testing system software design packet slave computer software containing FCT signal detection plate designs and opening of system tested by PC
Send out.Each functional module, with UC/OS II as system platform, is carried out Multi-task Concurrency fortune by FCT signal detection plate slave computer software
Row mechanism, the integrated each functional module driver of slave computer software, perform the various system commands that PC sends, build including communication
Stand and maintenance, fault simulation, signals collecting, moving parts control etc..
In ICT equipment with FCT automatization test system, system is implemented overall logic and is implemented control by industrial computer test system
System, and use all data of database purchase.Industrial computer test system includes that FCT tests logical edit module, FCT communication control
Molding block, pc port configuration module and remote controller automatic control module；FCT tests logical edit module, patrols for maintenance test
Volume, various detection purpose is set and accurately judges parameter, send the fault simulation signal instruction etc. to Board Under Test；
FCT communication control module, module provide arrange the various communication interface of FCT circuit board for set up and keep and quilt
Drafting board communication data；
Pc port configuration module, it is achieved the correlation function configuration of system, such as the underlying parameter such as user, port；Remote controller is certainly
Dynamic control module, for the control to remote signal intelligence sending module data.
FCT automatization test system in above-described embodiment, uses in conjunction with ICT equipment, and test system all tests logic
Make to computerized control, and realize ICT, FCT test linking on testing process.Realize database purchase logic, data
Library storage test result, far call logic, remotely monitoring test data, it is achieved that ICT Yu FCT integrated testing；The most real
Having showed ICT Yu FCT integrated testing, automaticity is high, decreases tester's configuration, improves testing efficiency；Realization makes
With PC FCT test item accurately configured and judge, improving the quality level of product；Popularization integrated testing is greatly reduced
Cost, and reduce the test labor intensity of tester.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed, but also
Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that, for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these broadly fall into the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. being integrated in a FCT automatization test system for ICT equipment, ICT equipment includes that industrial computer, ICT moving parts control
Unit, ICT detector unit and needle-bar, its feature in:
Described FCT automatization test system include FCT signal deteching circuit unit, ICT/FCT Collaborative Control circuit unit and
ICT/FCT strong and weak electricity isolation circuit unit:
Described ICT equipment is connected with described ICT/FCT Collaborative Control circuit unit, FCT signal deteching circuit unit communication respectively,
Described ICT/FCT Collaborative Control circuit unit electrically connects with described FCT signal deteching circuit unit；
Described ICT equipment, FCT signal deteching circuit unit electrically connect with described ICT/FCT strong and weak electricity isolation circuit unit respectively,
Described needle-bar electrically connects with described ICT/FCT strong and weak electricity isolation circuit unit；
Described ICT/FCT Collaborative Control circuit unit is according to the instruction of industrial computer and the state parameter of moving parts of ICT equipment
Signal controls FCT signal deteching circuit unit and the duty of ICT moving parts control unit；
Described ICT/FCT strong and weak electricity isolation circuit unit is according to the switching of ICT/FCT Collaborative Control circuit unit switching signal
Connection between needle-bar and described ICT detector unit and between described needle-bar and described FCT signal deteching circuit unit
Control bus is used to be connected between described ICT moving parts control unit and described moving parts, described ICT moving parts
Control unit controls described moving parts and runs, and the control collaborative with described ICT/FCT respectively of described ICT moving parts control unit
Circuit unit processed and described FCT signal deteching circuit unit connect.
The FCT automatization test system being integrated in ICT equipment the most according to claim 1, it is characterised in that:
Described FCT signal deteching circuit unit includes:
Power module, for providing working power to circuit-under-test plate；
Signals collecting subelement, for being compared with parameter preset by the test parameter of circuit-under-test plate, and will generate comparison
Consequential signal is sent to described industrial computer；
Communicating circuit integration module, is used for realizing described FCT signal deteching circuit unit and described ICT equipment and ICT/FCT association
With the communication between control circuit unit.
The FCT automatization test system being integrated in ICT equipment the most according to claim 2, it is characterised in that:
Described signals collecting subelement includes:
Light current voltage acquisition module, for being acquired the light current voltage of circuit-under-test plate by ADC Acquisition Circuit；
Forceful electric power voltage acquisition module is for the forceful electric power voltage of circuit-under-test plate being carried out isolation sampling by voltage transformer, logical
The mode crossing ADC calculating draws magnitude of voltage；
Fault simulation module, for cutting fault simulation signal by the logical time of logic relay；
Numeral temperature-sensitive bag module, for simulating the temperature spot setting load；
Electric expansion valve circuit automatic detection module, for detecting the aperture of electric expansion valve.
The FCT automatization test system being integrated in ICT equipment the most according to claim 3, it is characterised in that:
Described communicating circuit integration module integrated RS485 communicating circuit, RS232 communicating circuit, CAN communicating circuit, HBS are logical
News circuit and/or zero live wire communicating circuit.
The FCT automatization test system being integrated in ICT equipment the most according to claim 4, it is characterised in that:
Described signals collecting subelement also includes remote signal intelligence sending module；
Described remote signal intelligence sending module receives, by described RS485 communicating circuit, the control instruction that described industrial computer sends
Signal, carries out pattern, temperature spot and the control of each load in real time according to described control instruction signal to circuit-under-test plate plate.
6. according to the FCT automatization test system of the ICT equipment that is integrated in described in any one of claim 1-5, it is characterised in that:
Described ICT/FCT power electric isolating circuit includes organizing double-gate relay more；
The described double-gate relay of many groups is used for switching between described needle-bar and described ICT detector unit and described needle-bar is with described
Connection between FCT signal deteching circuit unit.
The FCT automatization test system being integrated in ICT equipment the most according to claim 6, it is characterised in that:
The described double-gate relay model of many groups is identical；
The coils from parallel connection of coils of described double-gate relay of organizing, in same circuit, organize described double-gate relay start-stop simultaneously more more.
The FCT automatization test system being integrated in ICT equipment the most according to claim 7, it is characterised in that:
Described needle-bar is connected with described ICT/FCT strong and weak electricity isolation circuit unit by ICT bus and FCT bus respectively；
The normally-closed contact of described double-gate relay connects ICT bus, and normally opened contact connects FCT bus, is surveying circuit-under-test plate
During examination, first carry out ICT test, carry out FCT test afterwards.
The FCT automatization test system being integrated in ICT equipment the most according to claim 6, it is characterised in that:
Also including scan module and data memory module, described scan module and data memory module lead to described industrial computer respectively
Letter connects, the bar code of described scan module scanning circuit-under-test plate, and bar code information is sent to described industrial computer, described work
Control machine is stored in corresponding with test result for described bar code information in described data memory module.
The FCT automatization test system being integrated in ICT equipment the most according to claim 9, it is characterised in that:
Also include that remote control table, described remote control table communicate to connect with described industrial computer, be used for debugging described industry control
Machine, carry out database access operation and testing standard configuration.
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