CN102680911B - System and method for testing multi-user parallel of locomotive switch power supply - Google Patents

System and method for testing multi-user parallel of locomotive switch power supply Download PDF

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Publication number
CN102680911B
CN102680911B CN201210175489.7A CN201210175489A CN102680911B CN 102680911 B CN102680911 B CN 102680911B CN 201210175489 A CN201210175489 A CN 201210175489A CN 102680911 B CN102680911 B CN 102680911B
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user
power supply
test
load
switching power
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CN102680911A (en
Inventor
曹金洲
陈志漫
苏建辉
余志涛
李涛
高峰
耶小方
黄进一
彭真
屈宏涛
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Zhuzhou CSR Times Electric Co Ltd
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Zhuzhou CSR Times Electric Co Ltd
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Abstract

The invention discloses a system and a method for testing multi-user parallel of a locomotive switch power supply. A first direct current power supply, a second direct current power supply, an alternating current power supply, a first direct current load, a second direction current load, third to mth direct current loads and a detecting device are connected through a control bus; and n external interfaces are connected with the first direct current power supply, the second direct current power supply, the alternating current power supply, the first direct current load, the second direction current load, the third to the mth direct current loads and the detecting device through a lead and is connected with a computer through a control bus. The value of m is determined according to a maximum value of output numbers of the power supply of the switch to be tested; and n external interfaces are connected with the power supplies of n switches to be tested through n transition harnesses. A multi-user configuration mode is adopted in the computer and the computer comprises a plurality of user configuration modules. With the adoption of the system and the method, the technical problems that resource utilization rate is not high in the prior art, only one switch power supply of the locomotive is tested at one time and only one person is allowed to use the resource of a locomotive switch power supply testing system at one moment are solved.

Description

A kind of locomotive switching power supply multi-user's parallel test system and method thereof
Technical field
The present invention relates to a kind of electrical test system and method thereof, especially relate to a kind of the locomotive switching power supply multi-user parallel test system and the method thereof that are applied to electrified track transit equipment.
Background technology
Current locomotive switching power supply has following features: (1) input has AC(to exchange) and DC(direct current) two kinds; (2) input voltage of different locomotive switching power supply and input undervoltage protection value, input overvoltage protection value are different, and widely different; (3) output voltage of different locomotive switching power supply is different and different to the requirement of load; (4) the output voltage way of different locomotive switching power supply is different, and widely different.In order to adapt to these features of locomotive switching power supply, current locomotive switching power supply test macro has following features:
(1) resource that possesses of test macro is abundanter, and when a certain specific locomotive switching power supply test, test macro only make use of a part of resource wherein, and remaining resource is then in idle state, and thus the utilization factor of test macro resource is not high;
(2) simultaneously, even if the less Switching Power Supply of some resource requirements is because can not test simultaneously, can only wait for.That is, original locomotive switch test system only allows one man operation, and once only can complete the test of one piece of Switching Power Supply, namely belongs to single user operation pattern.
Along with the development of automatic technology, Switching Power Supply Auto-Test System is also arisen at the historic moment.Existing Switching Power Supply Auto-Test System is formed as shown in Figure 1, comprising: locomotive switching power supply Auto-Test System 100, transition wire harness 2, tested Switching Power Supply 3.Wherein, locomotive switching power supply Auto-Test System 100 comprises again further: the 1st direct supply 4(the 1st road programmable DC power supply), 2nd direct supply 5(the 2nd road programmable DC power supply), AC power 6, 1st DC load 7(the 1st road programmable DC load), 2nd DC load (the 2nd road programmable DC load), 3rd ~ m DC load 9(, 3rd ~ m road programmable DC load), checkout equipment 10(oscillograph able to programme, the measuring equipments such as multimeter), computing machine 11(is by main frame and a display, a mouse, a keyboard composition), and external interface 12.
But the type of locomotive switching power supply is various, from input way and export way and be divided into following a few class (for ease of understanding, desirable m=12): (A) 1 tunnel exchange input, be less than or equal to m/2 road direct current and export; (B) 1 road direct current input, is less than or equal to m/2 road direct current and exports; (C) 1 road direct current input, is greater than m/2 road, is less than or equal to the direct current input of m road; (D) 2 road direct current inputs, are less than or equal to m/2 road direct current and export.Because locomotive switching power supply kind is many, the feature that quantity is few, often needs to test multiple Switching Power Supply simultaneously.And current locomotive switching power supply test macro is owing to being single user test macro, only allow one man operation, following technical matters will be produced:
(1) resource utilization is not high, when only testing every class locomotive switching power supply, and resource existence residue (utilization) phenomenon all in various degree of locomotive switching power supply test macro;
(2) once only can test one piece of locomotive switching power supply, also can only wait for even if surplus resources meets the demands;
(3) synchronization only allows a people to use the test resource of locomotive switching power supply test macro.
Summary of the invention
The object of this invention is to provide a kind of locomotive switching power supply multi-user parallel test system and method thereof, this system and method thereof can the resource utilization that exists of prior art not high, once only can test one piece of locomotive switching power supply, and synchronization only allows a people to use the technical matters of locomotive switching power supply test macro resource.
In order to realize foregoing invention object, the present invention specifically provides a kind of technic relization scheme of locomotive switching power supply multi-user parallel test system, a kind of locomotive switching power supply multi-user parallel test system, comprise: the 1st direct supply, 2nd direct supply, AC power, 1st DC load, 2nd DC load, 3rd ~ m DC load, checkout equipment, computing machine and n external interface, computing machine and the 1st direct supply, 2nd direct supply, AC power, 1st DC load, 2nd DC load, be connected by control bus between 3rd ~ m DC load and checkout equipment.N external interface is with the 1st direct supply, the 2nd direct supply, AC power (Programmable AC Power Source), the 1st DC load, the 2nd DC load, be connected by wire between 3rd ~ m DC load and checkout equipment, and the value of m is determined according to the maximal value of tested Switching Power Supply.N external interface is connected with n tested Switching Power Supply respectively by n bar transition wire harness, the value of n and the 1st direct supply, the 2nd direct supply, AC power, the 1st DC load, the 2nd DC load, Existence dependency relationship between 3rd ~ m DC load and multi-user's Configuration module of checkout equipment and computing machine, need to consider that locomotive switching power supply feature is comprehensively determined (as getting n=2) simultaneously.With the change of locomotive switching power supply feature, the quantity of direct supply, AC power, DC load, checkout equipment can carry out suitable increase and decrease.Computing machine adopts multi-user configuration mode, and computing machine comprises n(2≤n≤t, t and determined by multi-user's Configuration module) individual user configuration module and a set of multi-user's configuration software being installed on main frame.Direct supply, AC power, DC load, checkout equipment are programmable device.
As the further improvement of a kind of locomotive switching power supply of the present invention multi-user parallel test system technical scheme, computing machine comprises: main frame (multi-user's Configuration module and Resourse Distribute software module containing being installed on main frame) and n user configuration module, main frame is connected respectively with n user configuration module, and it is each a set of that each user configuration module comprises video card, display, keyboard and mouse.An a user configuration module correspondence test tested Switching Power Supply, the quantity of user configuration module is equal with the quantity of tested Switching Power Supply.
As the further improvement of a kind of locomotive switching power supply of the present invention multi-user parallel test system technical scheme, the main frame of locomotive switching power supply multi-user parallel test system Computer, and locomotive switching power supply multi-user parallel test system comprises the 1st direct supply, the 2nd direct supply, AC power, the 1st DC load, the 2nd DC load, 3rd ~ m DC load and checkout equipment at interior test resource by all user's unity of possession.
As the further improvement of a kind of locomotive switching power supply of the present invention multi-user parallel test system technical scheme, the control of the video card of each user configuration module, display, keyboard and mouse is enjoyed alone by the user be assigned with, each user uses the external interface, the transition wire harness that are assigned to separately, independently tests respectively to corresponding tested Switching Power Supply.
The present invention also specifically provides a kind of technic relization scheme of locomotive switching power supply multi-user parallel test method in addition, and a kind of locomotive switching power supply multi-user parallel test method, comprises the following steps:
S100: all users take the main frame of locomotive switching power supply multi-user parallel test system Computer jointly, and locomotive switching power supply multi-user parallel test system comprises the 1st direct supply, the 2nd direct supply, AC power, the 1st DC load, the 2nd DC load, 3rd ~ m DC load and checkout equipment at interior test resource;
S101: each user enjoys the control of video card, display, keyboard and the mouse be assigned to separately, to the video card of other users, display, keyboard and mouse without control authority;
S102: each user uses the external interface, the transition wire harness that are assigned to separately, independently tests respectively to corresponding tested Switching Power Supply;
S103: the test resource taken between different user is mutex relation, it is illegal that different user controls same test resource simultaneously.
As the further improvement of a kind of locomotive switching power supply of the present invention multi-user parallel test method technical scheme, the test resource taken between different user in step s 103 meets mutex relation by following process implementation:
Each test resource comprising the 1st direct supply, the 2nd direct supply, AC power, the 1st DC load, the 2nd DC load, 3rd ~ m DC load and checkout equipment all defines two states: 0 state and 1 state, 0 status representative is idle, and 1 status representative is busy.
As the further improvement of a kind of locomotive switching power supply of the present invention multi-user parallel test method technical scheme, the test resource taken between different user in step s 103 meets mutex relation further by following process implementation:
Each user, before the test of a beginning tested Switching Power Supply, first distributes the test resource required for this user to main frame application, and the state assignment situation of test resource is stored in resource allocation table by main frame; After main frame receives distribution application, namely compare one by one with the state (initial value is 0) of test resource in resource allocation table; If corresponding test resource state is 0 in resource allocation table, then grant distribution, and be 1 by the status modifier of test resource corresponding in test resource table; If have at least 1 state to be that 1(does not utilize inadequate resource in corresponding test resource in resource allocation table), then refuse allocation for test resource.
As the further improvement of a kind of locomotive switching power supply of the present invention multi-user parallel test method technical scheme, terminate the test of a tested Switching Power Supply each user after, the test resource having distributed to this user is nullified to main frame application, after main frame receives cancellation application, the status modifier by test resource corresponding in resource allocation table is 0.
By implementing the technical scheme of the invention described above as the present invention's a kind of locomotive switching power supply multi-user parallel test system and method thereof, there is following technique effect:
(1) the present invention constructs a kind of locomotive switching power supply multi-user test system, can realize two people or many people test identical or different locomotive switching power supply simultaneously, two pieces that test or polylith Switching Power Supply can use the resource of test macro and not interfere with each other simultaneously jointly;
(2) present invention achieves dynamic assignment and the concurrent testing of locomotive switching power supply test system and test resource, improve the utilization factor of test resource, and improve test throughput.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the system architecture diagram of a kind of locomotive switching power supply test macro of prior art.
Fig. 2 is the system architecture diagram of a kind of embodiment of locomotive switching power supply multi-user parallel test system of the present invention.
Fig. 3 is a kind of embodiment system for computer of locomotive switching power supply multi-user parallel test system of the present invention structured flowchart.
In figure: 100-locomotive switching power supply test macro, 1-locomotive switching power supply multi-user parallel test system, 2-transition wire harness, the tested Switching Power Supply of 3-, 4-the 1st direct supply, 5-the 2nd direct supply, 6-AC power, 7-the 1st DC load, 8-the 2nd DC load, 9-3rd ~ m DC load, 10-checkout equipment, 11-computing machine, 12-external interface, 121-the 1st external interface, 12n-n-th external interface, 21-the 1st transition wire harness, 2n-n-th transition wire harness, the tested Switching Power Supply of 31-the 1st, the tested Switching Power Supply of 3n-n-th, 13-main frame, 141-the 1st video card, 151-the 1st display, 161-the 1st keyboard, 171-the 1st mouse, 181-the 1st user configuration module, 14n-n-th video card, 15n-n-th display, 16n-n-th keyboard, 17n-n-th mouse, 18n-n-th user configuration module.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in accompanying drawing 2 and accompanying drawing 3, give the specific embodiment of the present invention's a kind of locomotive switching power supply multi-user parallel test system and method thereof, below in conjunction with the drawings and specific embodiments, the invention will be further described.
The embodiment of a kind of locomotive switching power supply multi-user parallel test system as shown in Figure 2, comprising: the 1st direct supply 4, the 2nd direct supply 5, AC power 6, the 1st DC load 7, the 2nd DC load 8,3rd ~ m DC load 9, checkout equipment 10, computing machine 11 and n external interface.Computing machine 11 is with the 1st direct supply 4, the 2nd direct supply 5, AC power 6, the 1st DC load 7, the 2nd DC load 8, be connected by control bus between 3rd ~ m DC load 9 and checkout equipment 10.N external interface (comprising common n the external interface from the 1st external interface 121 ~ the n-th external interface 12n) is with the 1st direct supply 4, the 2nd direct supply 5, AC power 6, the 1st DC load 7, the 2nd DC load 8, be connected by wire between 3rd ~ m DC load 9 and checkout equipment 10.Wherein, the value of m is determined, as m=12 according to the maximal value of the tested Switching Power Supply of reality.N external interface is connected with n tested Switching Power Supply (comprising common n the tested Switching Power Supply from the tested Switching Power Supply 3n of the 1st tested Switching Power Supply 31 ~ the n-th) respectively by n article of transition wire harness (comprising common n the transition wire harness from the 1st transition wire harness 21 ~ the n-th transition wire harness 2n).Computing machine 11 adopts multi-user's configuration mode further, and computing machine 11 comprises plural user configuration module.Existence dependency relationship between the value of n and the 1st direct supply, the 2nd direct supply, AC power, the 1st DC load, the 2nd DC load, 3rd ~ m DC load and checkout equipment and computing machine multi-user configuration software, need to consider that locomotive switching power supply feature is comprehensively determined (as getting n=2) simultaneously, with the change of locomotive switching power supply feature, the quantity of direct supply, AC power, DC load, checkout equipment can carry out suitable increase and decrease.
Computing machine 11 as shown in Figure 3 comprises further: main frame 13(is containing the multi-user's Configuration module, the Resourse Distribute software module that are installed on main frame 13) and n user configuration module, 2≤n≤t(t is determined by multi-user's Configuration module), main frame 13 is connected respectively with n user configuration module, and user configuration module comprises video card, display, keyboard and mouse further.In multi-user's hardware configuration of computing machine 11, comprise main frame 13 and the 1st user configuration module 181 to the n-th user configuration module 18n n user configuration module altogether.Wherein, main frame 13 is the main part of computing machine 11.Video card comprises the 1st video card 141 ~ the n-th video card 14n n video card altogether.Display comprises the 1st display 151 ~ the n-th display 15n n display altogether.Keyboard comprises the 1st keyboard 161 ~ the n-th keyboard 16n n keyboard altogether.Mouse comprises the 1st mouse 171 ~ the n-th mouse 17n n mouse altogether.1st user configuration module 181 to the n-th user configuration module 18n is then made up of corresponding video card, display, keyboard, mouse respectively.
The main frame 13 of locomotive switching power supply multi-user parallel test system 1 Computer 11, and locomotive switching power supply multi-user parallel test system 1 comprises the 1st direct supply 4, the 2nd direct supply 5, AC power 6, the 1st DC load 7, the 2nd DC load 8,3rd ~ m DC load 9 and checkout equipment 10 at interior test resource by all user's unity of possession.The control of the video card of each user configuration module, display, keyboard and mouse is enjoyed alone by the user be assigned with, this user to the video card of other user configuration module, display, keyboard and mouse without control authority.Each user uses the external interface, the transition wire harness that are assigned to separately, independently tests respectively to corresponding tested Switching Power Supply.
Utilize above-mentioned locomotive switching power supply multi-user parallel test system to carry out an embodiment for the method for locomotive switching power supply multi-user concurrent testing, comprise the following steps:
S100: all users take the main frame 13 of locomotive switching power supply multi-user parallel test system 1 Computer 11 jointly, and locomotive switching power supply multi-user parallel test system 1 comprises the 1st direct supply 4, the 2nd direct supply 5, AC power 6, the 1st DC load 7, the 2nd DC load 8,3rd ~ m DC load 9 and checkout equipment 10 at interior test resource;
S101: each user enjoys the control of video card, display, keyboard and the mouse be assigned to separately, to the video card of other users, display, keyboard and mouse without control authority (setting of control authority is realized by the multi-user's configuration software running on main frame 13);
S102: each user uses the external interface, the transition wire harness that are assigned to separately, independently tests respectively to corresponding tested Switching Power Supply;
S103: the test resource taken between different user is mutex relation, it is illegal that different user controls same test resource simultaneously.
The test resource taken between different user in step s 103 meets mutex relation by following process implementation:
Each test resource comprising the 1st direct supply 4, the 2nd direct supply 5, AC power 6, the 1st DC load 7, the 2nd DC load 8,3rd ~ m DC load 9 and checkout equipment 10 all defines two states: 0 state and 1 state, 0 status representative is idle, and 1 status representative is busy.
The test resource taken between different user in step s 103 meets mutex relation further by following process implementation:
When operation started shooting by main frame 13, user before the test starting tested Switching Power Supply, the test resource distribution software of main frame 13 automatically the state comprising the 1st direct supply 4, the 2nd direct supply 5, AC power 6, the 1st DC load 7, the 2nd DC load 8,3rd ~ m DC load 9 and each test resource of checkout equipment 10 is all resetted (initialization) be 0;
Each user is before the test of a beginning tested Switching Power Supply, first distribute the test resource required for this user to the test resource distribution software application of main frame 13, the state assignment situation of test resource is stored in resource allocation table by the test resource distribution software of main frame 13; After the test resource distribution software of main frame 13 receives distribution application, namely compare one by one with the state of test resource in resource allocation table; If corresponding test resource state is 0 in resource allocation table, then grant distribution, and be 1 by the status modifier of test resource corresponding in test resource table; If have at least 1 state to be that 1(does not utilize inadequate resource in corresponding test resource in resource allocation table), then refuse allocation for test resource;
Terminate the test of a tested Switching Power Supply each user after, the test resource having distributed to this user is nullified in test resource distribution software application to main frame 13, after the test resource distribution software of main frame 13 receives cancellation application, the status modifier by test resource corresponding in resource allocation table is 0.
Lower mask body illustrates the test resource assigning process in locomotive switching power supply multi-user parallel test method of the present invention in conjunction with the embodiments.When the start of locomotive switching power supply multi-user parallel test system 1 runs, the state of each test resource all reset (initialization) be 0, the init state of resource allocation table is as shown in table 1 below.
Table 1
Test resource State
1st direct supply 4 0
2nd direct supply 5 0
AC power 6 0
1st DC load 7 0
2nd DC load 8 0
3rd ~ m DC load 9 0
Checkout equipment 10 0
Suppose that the 1st user is to test resource distribution software application Resources allocation, as shown in table 2 below.
Table 2
Distribute application
1st direct supply 4
1st DC load 7
After test resource distribution software receives distribution application form as shown in table 2, namely the state of the 1st direct supply 4, the 1st DC load 7 in resource allocation table 1 is checked, 0 is as seen by table 1, then test resource distribution software grants application, control by the 1st direct supply 4, the 1st DC load 7 gives the 1st user, and to revise test resource allocation table be table 3.
Table 3
Test resource State
1st direct supply 4 1
2nd direct supply 5 0
AC power 6 0
1st DC load 7 1
2nd DC load 8 0
3rd ~ m DC load 9 0
Checkout equipment 10 0
Suppose that now the 2nd user proposes to distribute application to test resource distribution software, as shown in table 4 below.
Table 4
Distribute application
1st direct supply 4
2nd DC load 8
Test resource distribution software, after receiving distribution application form 4, namely checks the state of the 1st direct supply 4, the 2nd DC load 8 in resource allocation table 3.The state of the 1st direct supply 4 is the 1,2nd DC load 8 is as shown in Table 30, is not 0 entirely, therefore refuses the application of the 2nd user.
If the 2nd user proposes to distribute application to test resource distribution software again, as shown in table 5 below.
Table 5
Distribute application
2nd direct supply 5
2nd DC load 8
Test resource distribution software, after receiving distribution application form 5, namely checks the state of the 2nd direct supply 5, the 2nd DC load 8 in resource allocation table 3.By table 3 can the 2nd direct supply 5, the 2nd DC load 8 state be 0, therefore grant application, the control by the 2nd direct supply 5, the 2nd DC load 8 gives the 2nd user, and revises test resource allocation table for shown in following table 6.
Table 6
Test resource State
1st direct supply 4 1
2nd direct supply 5 1
AC power 6 0
1st DC load 7 1
2nd DC load 8 1
3rd ~ m DC load 9 0
Checkout equipment 10 0
Now, namely the 1st user and the 2nd user are in multi-user's concurrent testing state.
If the 1st user proposes to nullify application to test resource distribution software, as shown in table 7 below.
Table 7
Nullify application
1st direct supply 4
1st DC load 7
Test resource distribution software receives nullifies application form 7, is revised as following table 8 by test resource allocation table.
Table 8
Test resource State
1st direct supply 4 0
2nd direct supply 5 1
AC power 6 0
1st DC load 7 0
2nd DC load 8 1
3rd ~ m DC load 9 0
Checkout equipment 10 0
The above is only preferred embodiment of the present invention, not does any pro forma restriction to the present invention.Although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention.Any those of ordinary skill in the art, do not departing under technical solution of the present invention ambit, the Method and Technology content of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent replacement, equivalence change and modification, all still belongs in the scope of technical solution of the present invention protection.

Claims (7)

1. a locomotive switching power supply multi-user parallel test system, it is characterized in that, comprise: the 1st direct supply (4), 2nd direct supply (5), AC power (6), 1st DC load (7), 2nd DC load (8), 3rd ~ m DC load (9), checkout equipment (10), computing machine (11) and n external interface, described computing machine (11) and the 1st direct supply (4), 2nd direct supply (5), AC power (6), 1st DC load (7), 2nd DC load (8), be connected by control bus between 3rd ~ m DC load (9) and checkout equipment (10), a described n external interface is with the 1st direct supply (4), the 2nd direct supply (5), AC power (6), the 1st DC load (7), the 2nd DC load (8), be connected by wire between 3rd ~ m DC load (9) and checkout equipment (10), and the value of m is determined according to the output way maximal value of tested Switching Power Supply (3), n external interface is connected with n tested Switching Power Supply respectively by n bar transition wire harness, described computing machine (11) adopts multi-user's configuration mode, and computing machine (11) comprises the user configuration module of n, and wherein, 2≤n≤t, t is set by multi-user's Configuration module, described computing machine (11) comprises main frame (13), all users take the main frame (13) of locomotive switching power supply multi-user parallel test system (1) Computer (11) jointly, and locomotive switching power supply multi-user parallel test system (1) comprises the 1st direct supply (4), the 2nd direct supply (5), AC power (6), the 1st DC load (7), the 2nd DC load (8), 3rd ~ m DC load (9) and checkout equipment (10) at interior test resource.
2. a kind of locomotive switching power supply multi-user parallel test system according to claim 1, it is characterized in that: described computing machine (11) also comprises the multi-user's Configuration module and Resourse Distribute software module that are installed on main frame (13), main frame (13) is connected respectively with n user configuration module, and user configuration module comprises video card, display, keyboard and mouse.
3. a kind of locomotive switching power supply multi-user parallel test system according to claim 2, it is characterized in that: the control of the video card of each user configuration module, display, keyboard and mouse is enjoyed alone by the user be assigned with, each user uses the external interface, the transition wire harness that are assigned to separately, independently tests respectively to corresponding tested Switching Power Supply.
4. a locomotive switching power supply multi-user parallel test method, is characterized in that, comprises the following steps:
S100: all users take the main frame (13) of locomotive switching power supply multi-user parallel test system (1) Computer (11) jointly, and locomotive switching power supply multi-user parallel test system (1) comprises the 1st direct supply (4), the 2nd direct supply (5), AC power (6), the 1st DC load (7), the 2nd DC load (8), 3rd ~ m DC load (9) and checkout equipment (10) at interior test resource;
S101: each user enjoys the control of video card, display, keyboard and the mouse be assigned to separately, to the video card of other users, display, keyboard and mouse without control authority;
S102: each user uses the external interface, the transition wire harness that are assigned to separately, independently tests respectively to corresponding tested Switching Power Supply;
S103: the test resource taken between different user is mutex relation, it is illegal that different user controls same test resource simultaneously.
5. a kind of locomotive switching power supply multi-user parallel test method according to claim 4, is characterized in that: the test resource taken between different user in described step S103 meets mutex relation by following process implementation:
Each test resource comprising the 1st direct supply (4), the 2nd direct supply (5), AC power (6), the 1st DC load (7), the 2nd DC load (8), 3rd ~ m DC load (9) and checkout equipment (10) all defines two states: 0 state and 1 state, 0 status representative is idle, and 1 status representative is busy.
6. a kind of locomotive switching power supply multi-user parallel test method according to claim 5, is characterized in that: the test resource taken between different user in described step S103 meets mutex relation further by following process implementation:
Each user is before the test of a beginning tested Switching Power Supply, first the test resource required for this user is distributed to main frame (13) application, the state assignment situation of test resource is stored in resource allocation table by main frame (13): after main frame (13) receives distribution application, namely compare one by one with the state of test resource in resource allocation table; Wherein, the state initial value of test resource is 0; If corresponding test resource state is 0 in resource allocation table, then grant distribution, and be 1 by the status modifier of test resource corresponding in test resource table; If have at least 1 state to be 1 in corresponding test resource in resource allocation table, then refuse allocation for test resource.
7. a kind of locomotive switching power supply multi-user parallel test method according to claim 6, is characterized in that: terminate the test of a tested Switching Power Supply each user after, nullifies to main frame (13) application the test resource having distributed to this user; After main frame (13) receives cancellation application, the status modifier by test resource corresponding in resource allocation table is 0.
CN201210175489.7A 2012-05-31 2012-05-31 System and method for testing multi-user parallel of locomotive switch power supply Expired - Fee Related CN102680911B (en)

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