CN104331061A - Test method and test device of core board of distribution network terminal device - Google Patents

Test method and test device of core board of distribution network terminal device Download PDF

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Publication number
CN104331061A
CN104331061A CN201410432494.0A CN201410432494A CN104331061A CN 104331061 A CN104331061 A CN 104331061A CN 201410432494 A CN201410432494 A CN 201410432494A CN 104331061 A CN104331061 A CN 104331061A
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China
Prior art keywords
core board
functional module
described
test
gpio
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CN201410432494.0A
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Chinese (zh)
Inventor
杨星宽
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航天科工深圳(集团)有限公司
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Priority to CN201410432494.0A priority Critical patent/CN104331061A/en
Publication of CN104331061A publication Critical patent/CN104331061A/en

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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00Testing or monitoring of control systems or parts thereof
    • G05B23/02Electric testing or monitoring
    • G05B23/0205Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
    • G05B23/0208Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
    • G05B23/0213Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols

Abstract

Disclosed is a test method of a core board of a distribution network terminal device. The core board at least includes one function module. The test method includes the following steps: providing a test board on which connection circuits corresponding to the function modules on the core board are arranged; inserting the core board into a slot in the test board, wherein the connection circuits form a test circuit with the function modules through the slot; carrying out simulating work test on the function modules on the core board and judging whether the function modules are normal; if the functions of all the function modules are all normal, outputting prompt information that the function of the core board is normal; and if the functions of more than one function module cannot be carried out normally, outputting prompt information that the function of the core board is abnormal and outputting information of function modules, on which faults exist. The test method of the core board of the distribution network terminal device is high in test efficiency and capable of accurately positioning fault areas. A test device of the core board of the distribution network terminal device is also provided.

Description

The method of testing of distribution network terminal device core board and proving installation thereof

Technical field

The present invention relates to controller switching equipment technical field, particularly relate to a kind of method of testing and proving installation thereof of distribution network terminal device core board.

Background technology

Along with the fast development of power distribution automation, distribution network terminal device (Distribution Terminal Unit, DTU) is widely used.Distribution network terminal device, by being connected with distribution switchgear, realizes the Long-distance Control disconnecting the real-time current of panel switches, the collection of voltage and switch, close.Distribution network terminal device and distant place main website set up communication, the real time data collected is uploaded to main website, realizes remote monitoring, and perform the control command that main website issues, and realize Long-distance Control.

In existing distribution network terminal device, functionally divide and be mainly divided into three parts: core board, mainboard and other modules.Core board is inserted in above mainboard by slot, and with integrated circuit in slot, core board is connected with mainboard by this circuit.Core board is most important functional module in whole system, and it is the basic premise that distribution network terminal device normally runs that core board normally works.Core board is mainly integrated with processor chips (CPU), serial ports process chip, network interface card process chip, flash memory (Flash) storage chip etc.In actual production process, because chip is too much, circuit is complicated, occurs that segment chip not can be good at being welded on above core board, as chip solder skip, and short circuit or pin rosin joint.And these Welding Problems can directly cause core board cisco unity malfunction.Because chip is too little in actual production process, too intensive, occur that solder failure or functional chip itself have fault to be difficult to, by visually seeing, need special testing tool just can effectively detect.Traditional method of testing is integrated into by core board in equipment set device, manually carries out the test of allomeric function.Because core board functional module is more, one piece of core board has been tested, and needs to consume longer time, and testing efficiency is lower, is unfavorable for batch testing, and can not accurate localizing faults region.

Summary of the invention

Based on this, be necessary for the problems referred to above, provide a kind of testing efficiency high and can the method for testing of the accurate distribution network terminal device core board in localizing faults region.

A kind of proving installation of distribution network terminal device core board is also provided.

A method of testing for distribution network terminal device core board, described core board comprises at least one functional module, and described method of testing comprises the following steps: provide test board, described test board is provided with the connecting circuit corresponding with each functional module on core board; Be inserted into by core board in the slot on test board, described connecting circuit forms test loop by slot and described functional module; Analog operation test is carried out to each functional module on core board, and judges that whether each functional module is normal; If the function of all functions module is all normally carried out, then export the normally functioning information of described core board; If there is the function of more than one functional module normally not carry out, then export the parafunctional information of described core board, and export the information that there is the functional module of fault.

Wherein in an embodiment, described core board at least comprises flash memory storage functional module, serial port function module, network interface card functional module and GPIO functional module; On described test board, correspondence arranges serial ports connecting circuit, network interface card connecting circuit and GPIO connecting circuit; Described serial ports connecting circuit receives pin with the serial ports output pin on described core board and serial ports respectively by slot and is connected; Described network interface card connecting circuit receives pin with the network interface card output pin on described core board and network interface card respectively by slot and is connected; Described GPIO connecting circuit is connected with the GPIO port on described core board and core board bus respectively by slot; Described analog operation test is carried out to each functional module on core board, and judge that the whether normal step of each functional module is, respectively analog operation test is carried out to flash memory storage functional module, serial port function module, network interface card functional module and GPIO functional module, and judge that whether described flash memory storage functional module, serial port function module, described network interface card functional module and described GPIO function be normal.

Wherein in an embodiment, described analog operation test is carried out to flash memory storage functional module, and judge that the whether normal step of described flash memory storage functional module specifically comprises: stochastic generation test data; The first memory location place in flash memory space writes described test data; Described first memory location is the memory location of random selecting in described flash memory space; Read out the data that the first memory location place stores; Judge that whether the data read are identical with test data, if so, then judge that the flash memory storage functional module of core board is normal, if not, then judge that the flash memory storage functional module of core board is abnormal.

Wherein in an embodiment, described analog operation test is carried out to flash memory storage functional module, and judge, in the whether normal step of described flash memory storage functional module, to carry out repeatedly analog operation test to described flash memory storage functional module.

Wherein in an embodiment, described analog operation test is carried out to serial port function module, and judge that the whether normal step of described serial port function module specifically comprises: send character string by serial ports output pin; Judge whether serial ports input pin receives data, if not, then judge that the pin of described serial port function module exists fault; If so, then judge that whether the character string that data that serial ports input pin receives and described serial ports output pin send is identical, if so, then judge that serial port function module is normal; If not, then judge that serial port function module is abnormal.

Wherein in an embodiment, described analog operation test is carried out to network interface card functional module, and judge that the whether normal step of described network interface card functional module specifically comprises: send test data by network interface card output pin; Judge whether network interface card input pin receives data, if not, then judge that the joint of described network interface card functional module exists fault; If so, then judge that whether the test data that data that network interface card input pin receives and described network interface card output pin send is identical, if so, then judge that network interface card functional module is normal; If not, then judge that network interface card functional module is abnormal.

Wherein in an embodiment, described analog operation test is carried out to GPIO functional module, and judge that the whether normal step of described GPIO functional module specifically comprises: produce one group of binary bit value at random; Utilize the random binary bit value produced to GPIO pin assignment one by one; GPIO pin value is read by core board bus; Judge that whether the GPIO pin value read by core board bus is identical with the assignment of GPIO pin, if so, then judge that GPIO functional module is normal; If not, then judge that GPIO functional module is abnormal.

Wherein in an embodiment, described analog operation test is carried out to GPIO functional module, and judge, in the whether normal step of described GPIO functional module, to carry out repeatedly analog operation test to described GPIO functional module.

A kind of proving installation of distribution network terminal device core board, for providing test condition for the test of distribution network terminal device core board, described distribution network terminal device core board comprises at least one functional module, described proving installation comprises test board, and described test board is provided with slot, connecting circuit and display module; Described connecting circuit is corresponding with each functional module on described core board; Described connecting circuit forms test loop by slot and described functional module; Described display module is used for showing test result.

Wherein in an embodiment, described distribution network terminal device core board at least comprises flash memory storage functional module, serial port function module, network interface card functional module and GPIO functional module; On described test board, correspondence is provided with serial ports connecting circuit, network interface card connecting circuit and GPIO connecting circuit; Described serial ports connecting circuit receives pin with the serial ports output pin on described core board and serial ports respectively by slot and is connected; Described network interface card connecting circuit receives pin with the network interface card output pin on described core board and network interface card respectively by slot and is connected; Described GPIO connecting circuit is connected with the GPIO port on described core board and core board bus respectively by slot.

The method of testing of above-mentioned distribution network terminal device core board and proving installation, by core board by slot be inserted on test board with core board outside formed test loop, without the need to carrying out any amendment or process to core board, can test purpose be reached.The test loop formed by test procedure and test board can carry out analog operation test to the functional module on core board automatically, and then judges that whether the function of each functional module is normal, thus judges that whether core board function is normal.This method of testing can be tested core board fast, and testing efficiency is higher, is beneficial to batch testing, solves a test difficult problem for distribution network terminal device core board in production run.The test process of above-mentioned method of testing can complete automatically, greatly reduces the requirement to tester, further increases testing efficiency.The method of testing of above-mentioned distribution network terminal device core board can carry out complete detection to the modules of core board, accurately can locate the fault zone of core board, thus make maintainer can carry out maintenance process to malfunctioning module rapidly, improve the efficiency safeguarding distribution network terminal device.

Accompanying drawing explanation

Fig. 1 is the process flow diagram of the method for testing of distribution network terminal device core board in an embodiment;

Fig. 2 be embodiment illustrated in fig. 1 in the process flow diagram of step S130 is performed to flash memory storage functional module;

Fig. 3 be embodiment illustrated in fig. 1 in the process flow diagram of step S130 is performed to serial port function module;

Fig. 4 be embodiment illustrated in fig. 1 in the process flow diagram of step S130 is performed to network interface card functional module;

Fig. 5 be embodiment illustrated in fig. 1 in the process flow diagram of step S130 is performed to GPIO functional module;

Fig. 6 is the process flow diagram of the method for testing of distribution network terminal device core board in an embodiment;

Fig. 7 is the proving installation of the distribution network terminal device core board in an embodiment.

Embodiment

In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.

A method of testing for distribution network terminal device core board, for detecting the function of core board.Distribution network terminal device core board comprises at least one functional module.The method of testing of distribution network terminal device core board, comprises the following steps.

S110, provides test board.

Test board is provided with slot and connecting circuit.Connecting circuit on test board is corresponding with each functional module on core board.

S120, is inserted into core board in the slot on test board.

Connecting circuit forms test loop by slot and functional module.In the present embodiment, can equally core board be inserted in the slot on test board by the mainboard on similar distribution network terminal device.Form external test circuitry by slot that test board is arranged and connecting circuit, test process can not make any amendment or process to core board, can not affect the normal operation of the function of core board.

S130, carries out analog operation test to each functional module on core board, and judges that whether each functional module is normal.

Core board comprises the functional module of at least one, therefore need to carry out analog operation test to each functional module on core board respectively.The order of each functional module being carried out to analog operation test can't have an impact to test result, and therefore testing sequence is not strict with.In the present embodiment, analog operation test refers to that the normal course of work is carried out in the external testing loop that functional module is set up by test board.Such as, analog operation test is carried out to flash memory storage functional module and refers to random read-write test is carried out to flash memory storage module, analog operation test is carried out to network interface card functional module and refers to transmitting-receiving test network interface card being carried out to data.

In the present embodiment, core board at least comprises flash memory storage functional module, serial port function module, network interface card functional module and GPIO (General Purpose Input Output, universal input/output) functional module.Therefore, correspondingly on test board serial ports connecting circuit, network interface card connecting circuit and GPIO connecting circuit is provided with.Particularly, serial ports connecting circuit is connected with the serial ports output pin on core board and serial ports input pin respectively by slot.Network interface card connecting circuit is connected with the network interface card output pin on core board and network interface card input end pin respectively by slot.GPIO connecting circuit is connected to form test loop with the GPIO port on core board and core board bus respectively by slot.Therefore, for to carry out analog operation test to flash memory storage functional module, serial port function module, network interface card functional module and GPIO functional module respectively in this step, and judge that whether flash memory storage functional module, serial port function module, network interface card functional module and GPIO functional module be normal.

Analog operation test is carried out to flash memory storage functional module, and judges that whether normal flash memory storage functional module step be concrete as shown in Figure 2.

S210, the test data of stochastic generation.

For ensureing the validity of test, stochastic generation test data data1.The length of test data data1 does not have strict regulations, reads and writes as long as can realize the normal of paired data, and its length can carry out adaptive adjustment according to the size of flash memory space.In the present embodiment, test data data1 selects length to be data about 1024 bytes.

S220, is stored in the first memory location place in flash memory space by test data.

In the present embodiment, the first memory location is a memory location of random selecting, and by its called after addr.At the first addr place, memory location write test data data1.

S230, reads out the data that the first memory location place stores.

The data that first addr place, memory location stores are read, and the data read are saved in data2.

S240, judges that whether the data read are identical with test data.

Judge that whether the data data2 read is identical with the test data data1 of write.If identical, then perform step S250, namely judge that the flash memory storage functional module on core board is normal; If not identical, then perform step S260, namely judge that the flash memory storage functional module on core board is abnormal.

Because flash memory storage functional module is in read-write process, also may occur writing the data situation identical with reading data even if there is fault.Therefore, in order to avoid the impact of this stochastic error, need repeatedly to test when carrying out module work test to flash memory storage functional module.Only under repeatedly testing and all judging the normal situation of flash memory storage functional module, can judge that flash memory storage functional module is normal.Testing time can set as required.In the present embodiment, testing time is set as 10 times.

Analog operation test is carried out to serial port function module, and judges that whether normal serial port function module step be concrete as shown in Figure 3.

S310, sends character string by serial ports output pin.

Character string String1 is sent by serial ports output pin.The character length of character string String1 is not strict with, as long as can be received normally.In the present embodiment, about the character length of character string String1 is set to 100 bytes.

S320, judges whether serial ports input pin receives data.

After serial ports output terminal sends character string String1, judge whether serial ports input pin receives the data of being sent by output terminal.If so, be then perform step S330 after String2 by the numerical nomenclature received.As no, then perform step S350, namely judge that the pin of serial port function module exists fault.

S330, judges that whether the character string that data that serial ports input pin receives and described serial ports output pin send is identical.

The character string String1 that the data String2 received and serial ports output terminal send is compared, judges that whether data String2 is identical with String1.If identical, then perform step S340, namely judge that serial port function module is normal; Then perform step S360 if not, namely judge that serial port function module is abnormal.

Carrying out in analog operation test process to serial port function module, due to the serial ports only responsible transmission to data and acceptance, therefore occur that the probability of stochastic error is very little, therefore, only need to carry out once namely whether normally to judge its function to the test of this functional module.

Analog operation test is carried out to network interface card functional module, and judges that whether normal network interface card functional module step be concrete as shown in Figure 4.

S410, sends test data by network interface card output pin.

Data data1 is sent by network interface card output pin.The byte length of data data1 is not strict with, as long as can be received normally.In the present embodiment, about the byte length of data data1 is set to 100 bytes.

S420, judges whether network interface card input pin receives data.

After serial ports output terminal sends data data1, judge whether network interface card input pin receives the data of being sent by output terminal.If so, be then perform step S430 after data2 by the numerical nomenclature received.As no, then perform step S450, namely judge that the joint of network interface card functional module exists fault.

S430, judges that whether the data that network interface card input pin receives are identical with the test data that network interface card output pin sends.

The test data data1 that the data data2 received and network interface card output terminal send is compared, judges that whether data data2 is identical with test data data2.If identical, then perform step S440, namely judge that network interface card functional module is normal; Then perform step S460 if not, namely judge that network interface card functional module is abnormal.

Carrying out in analog operation test process to network interface card functional module, due to the network interface card only responsible transmission to data and acceptance, therefore occur that the probability of stochastic error is very little, therefore, only need to carry out once namely whether normally to judge its function to the test of this functional module.

Analog operation test is carried out to GPIO functional module, and judges that whether normal GPIO functional module step be concrete as shown in Figure 5.

S510, random generation one group of binary bit value.

Random generation one group of binary bit value, as a1, a2, a3 ... an, each binary bit value only has two values 1 or 0, the high level of the corresponding GPIO pin of difference and low level.

S520, utilizes the random binary bit value produced to GPIO pin assignment one by one.

The corresponding GPIO pin of each binary bit value, GPIO1 pin as corresponding in a1, the corresponding GPIO2 pin of a2, the like, the corresponding GPIOn of a2 corresponding GPIO3, an.

S530, reads GPIO pin value by core board bus.

Read GPIO pin value by core board bus, obtain one group of binary bit value b1, b2, b3 respectively ... bn.

S540, judges that whether the GPIO pin value read by core board bus is identical with the assignment of GPIO pin.

Compare a1, a2, a3 respectively ... an and b1, b2, b3 ... whether the value of bn is equal, and as a1 and b1 compares, a2 and b2 compares, the like, an and bn compares.If the value of all comparisons is all equal, then illustrate that GPIO pin does not have fault, namely performs step S550, judges that GPIO functional module is normal.If not, then perform step S560, namely judge that GPIO functional module is abnormal.

Due to the judged result that comparative result is identical also may be drawn during GPIO pin fault, therefore for avoiding stochastic error to bring impact to judgement, need repeatedly to test GPIO port.Only under repeatedly testing and all judging the normally functioning situation of GPIO functional module, can judge that the function of GPIO functional module is normal.Testing time can set as required.In the present embodiment, testing time is set as 20 times.

Respectively each functional module is tested in step S120, to carry out the judgement of allomeric function to core board.When core board other functional modules integrated because of needs, test board correspondence forms corresponding connecting circuit, to realize testing the analog operation of this functional module, thus analog operation test is carried out to the functional module on core board, and whether arbitration functions module is normal.

S140, exports the normally functioning information of core board.

If carry out analog operation test to each functional module of core board in S130, and be that the function of each functional module is all normal to the result whether each functional module normally judges, then export the normally functioning information of core board.In the present embodiment, can be shown this information by the LED light unit in the display module on test board or LCD display unit.

S150, exports the parafunctional information of core board, and exports the information that there is the functional module of fault.

If be tested with more than one functional module in S130 can not normally carry out, then export the parafunctional information of core board, and export the information that there is the functional module of fault.Then the information that there is the functional module of fault is exported, realize the precise positioning to fault zone, thus the personnel that maintain easily safeguard to core board, improve maintenance efficiency.In the present embodiment, can be shown this information by the LED light unit in the display module on test board or LCD display unit.Tester can check test result from LED intuitively, and navigates to the malfunctioning module of core board accurately by the information in LCD display, carries out maintenance process to corresponding module.

The method of testing of above-mentioned distribution network terminal device core board, by core board by slot be inserted on test board with core board outside formed test loop, without the need to carrying out any amendment or process to core board, can test purpose be reached.The test loop formed by test procedure and test board can carry out analog operation test to the functional module on core board automatically, and then judges that whether the function of each functional module is normal, thus judges that whether core board function is normal.This method of testing can be tested core board fast, and testing efficiency is higher, is beneficial to batch testing, solves a test difficult problem for distribution network terminal device core board in production run.The test process of above-mentioned method of testing can complete automatically, greatly reduces the requirement to tester, further increases testing efficiency.Meanwhile, above-mentioned method of testing can carry out complete detection to the modules of core board, and accurately the fault zone of location core board, makes maintainer to safeguard malfunctioning module rapidly, improve maintenance efficiency.

Fig. 6 is the process flow diagram of the method for testing of distribution network terminal device core board in a specific embodiment, comprises the following steps.

S610, testing results program.

Core board comprises flash memory storage functional module, serial port function module, network interface card functional module and GPIO functional module etc.Core board is inserted into test board by slot.Connecting circuit in test board forms test loop by the functional module on slot and core board, for test process provides test condition.In the present embodiment, test board comprises LED indicating member and LCD display unit.Test procedure carries out the initialization of some programs and data after starting to system, the modules such as configuration flash memory storage, serial ports, network interface card, LED and LCD.In test process, the RUN lamp in LED light is with the frequency scintillation of 1 time/second, and other pilot lamp are all in OFF state.

After testing results program, perform step S620, S630, S640 and S650 successively, namely successively flash memory storage chip, serial port function, network interface card function and GPIO function are tested.Above-mentioned functions is detected and namely analog operation test is carried out to corresponding functional module, and judge that whether each functional module is normal.Due in the aforementioned embodiment, be described in detail, repeat no more herein.In other examples, the order of S620, S630, S640 and S650 can adjust, and is not limited to the order in the present embodiment.

After each function of core board is tested successively, perform step S660, namely judge that whether modules is normal.After judging that modules is normal, perform step S670, the OK lamp namely in LED light is bright, and LCD shows the normally functioning information of core board.When judging core board to have abnormal module, then perform step S680, the ERR lamp namely in LED light is bright, and LCD shows abnormal module information.

The test loop formed by test procedure and test board can be detected each function on core board automatically, and then judges that whether the function of each functional module is normal, thus judges that whether core board function is normal.This method of testing can be tested core board fast, and testing efficiency is higher, is beneficial to batch testing, solves a test difficult problem for distribution network terminal device core board in production run.The test result of core board can be checked by LED indicating member and LCD display unit intuitively, fault zone is accurately located, be convenient to safeguard.

Figure 7 shows that the structural representation of the proving installation of the distribution network terminal device core board in an embodiment.The proving installation of distribution network terminal device core board is used for providing test condition for the test of core board.As shown in Figure 7, proving installation comprises test board 700.Test board 700 is provided with slot (not shown), connecting circuit 710 and display module 720.Equally core board can be inserted in the slot on test board 700 by mainboard on similar distribution network terminal device.Connecting circuit 710 on test board is corresponding with the functional module of at least one on core board.Connecting circuit 710 forms test loop by the functional module on slot and core board.In the present embodiment, core board at least comprises flash memory storage functional module, serial port function module, network interface card functional module and GPIO functional module, therefore, connecting circuit 710 correspondence on test board 700 is provided with network interface card connecting circuit 712, serial ports connecting circuit 714 and GPIO connecting circuit 716.Particularly, network interface card connecting circuit 712 receives pin with the network interface card output pin on described core board and network interface card respectively by slot and is connected.Serial ports connecting circuit 714 receives pin with the serial ports output pin on described core board and serial ports respectively by slot and is connected.GPIO connecting circuit 716 is connected with the GPIO port on described core board and core board bus respectively by slot.By setting up the connecting circuit corresponding with functional module on core board to form the test loop of each functional module.In the present embodiment, test procedure burning is on core board.Whether the test loop formed by test procedure and test board can carry out analog operation test to the functional module on core board automatically, normally judge and judged result is exported to display module 720 after test completes to each function on core board.

Display module 720 is for showing test result.In the present embodiment, display module 720 comprises LED light unit 722 and LCD display unit 724.LED light unit 722 is for indicating the state in test process.LED light unit 722 comprises at least three LED, is RUN, OK, ERR lamp respectively.Wherein, RUN lamp refers to and carries out functional test, and after namely entering test, namely RUN lamp is in bright state.In the present embodiment, RUN lamp is run with the frequency scintillation of 1 time/second in test process always.OK lamp and ERR lamp are then for showing test result.When the function of all functions module on core board is normal, OK lamp is in bright state, and LCD display unit 724 shows the normally functioning information of core board simultaneously.When core board existing abnormal functional module, then ERR lamp is in bright state, and the information of LCD display unit 724 display abnormal module, is convenient to maintainer and carries out checking and then accurately finding fault zone, improve maintenance efficiency.

The proving installation of above-mentioned distribution network terminal device core board, forms test loop, for the test of core board provides test condition by the connecting circuit 710 on test board 700 with the functional module on core board.The test procedure of burning on core board can carry out analog operation test to the functional module on core board automatically by test board, and then judge that whether the function of each functional module is normal, thus judge that whether core board function is normal, can test core board fast, testing efficiency is higher, be beneficial to batch testing, solve the test difficult problem that distribution network terminal device core board in production run arrives.Further, the test process undertaken by above-mentioned proving installation can be carried out automatically, greatly reduces the requirement to tester, further increases testing efficiency.Accurately can be located the fault zone of core board by display module 720 maintainer, rapidly malfunctioning module be safeguarded, improve maintenance efficiency.

The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.

Claims (10)

1. a method of testing for distribution network terminal device core board, described core board comprises at least one functional module, it is characterized in that, described method of testing comprises the following steps:
Test board is provided, described test board is provided with the connecting circuit corresponding with each functional module on core board;
Be inserted into by core board in the slot on test board, described connecting circuit forms test loop by slot and described functional module;
Analog operation test is carried out to each functional module on core board, and judges that whether each functional module is normal;
If the function of all functions module is all normally carried out, then export the normally functioning information of described core board;
If there is the function of more than one functional module normally not carry out, then export the parafunctional information of described core board, and export the information that there is the functional module of fault.
2. the method for testing of distribution network terminal device core board according to claim 1, is characterized in that, described core board at least comprises flash memory storage functional module, serial port function module, network interface card functional module and GPIO functional module; On described test board, correspondence arranges serial ports connecting circuit, network interface card connecting circuit and GPIO connecting circuit; Described serial ports connecting circuit receives pin with the serial ports output pin on described core board and serial ports respectively by slot and is connected; Described network interface card connecting circuit receives pin with the network interface card output pin on described core board and network interface card respectively by slot and is connected; Described GPIO connecting circuit is connected with the GPIO port on described core board and core board bus respectively by slot; Described analog operation test is carried out to each functional module on core board, and judge that the whether normal step of each functional module is, respectively analog operation test is carried out to flash memory storage functional module, serial port function module, network interface card functional module and GPIO functional module, and judge that whether described flash memory storage functional module, serial port function module, described network interface card functional module and described GPIO function be normal.
3. the method for testing of distribution network terminal device core board according to claim 2, is characterized in that, describedly carries out analog operation test to flash memory storage functional module, and judges that the whether normal step of described flash memory storage functional module specifically comprises:
Stochastic generation test data;
The first memory location place in flash memory space writes described test data; Described first memory location is the memory location of random selecting in described flash memory space;
Read out the data that the first memory location place stores;
Judge that whether the data read are identical with test data, if so, then judge that the flash memory storage functional module of core board is normal, if not, then judge that the flash memory storage functional module of core board is abnormal.
4. the method for testing of distribution network terminal device core board according to claim 3, it is characterized in that, described analog operation test is carried out to flash memory storage functional module, and judge, in the whether normal step of described flash memory storage functional module, to carry out repeatedly analog operation test to described flash memory storage functional module.
5. the method for testing of distribution network terminal device core board according to claim 2, is characterized in that, describedly carries out analog operation test to serial port function module, and judges that the whether normal step of described serial port function module specifically comprises:
Character string is sent by serial ports output pin;
Judge whether serial ports input pin receives data, if not, then judge that the pin of described serial port function module exists fault; If so, then
Judge that whether the character string that data that serial ports input pin receives and described serial ports output pin send is identical, if so, then judge that serial port function module is normal; If not, then judge that serial port function module is abnormal.
6. the method for testing of distribution network terminal device core board according to claim 2, is characterized in that, describedly carries out analog operation test to network interface card functional module, and judges that the whether normal step of described network interface card functional module specifically comprises:
Test data is sent by network interface card output pin;
Judge whether network interface card input pin receives data, if not, then judge that the joint of described network interface card functional module exists fault; If so, then
Judge that whether the test data that data that network interface card input pin receives and described network interface card output pin send is identical, if so, then judge that network interface card functional module is normal; If not, then judge that network interface card functional module is abnormal.
7. the method for testing of distribution network terminal device core board according to claim 2, is characterized in that, describedly carries out analog operation test to GPIO functional module, and judges that the whether normal step of described GPIO functional module specifically comprises:
Random generation one group of binary bit value;
Utilize the random binary bit value produced to GPIO pin assignment one by one;
GPIO pin value is read by core board bus;
Judge that whether the GPIO pin value read by core board bus is identical with the assignment of GPIO pin, if so, then judge that GPIO functional module is normal; If not, then judge that GPIO functional module is abnormal.
8. the method for testing of distribution network terminal device core board according to claim 7, it is characterized in that, described analog operation test is carried out to GPIO functional module, and judge, in the whether normal step of described GPIO functional module, to carry out repeatedly analog operation test to described GPIO functional module.
9. the proving installation of a distribution network terminal device core board, for providing test condition for the test of distribution network terminal device core board, described distribution network terminal device core board comprises at least one functional module, it is characterized in that, described proving installation comprises test board, and described test board is provided with slot, connecting circuit and display module; Described connecting circuit is corresponding with each functional module on described core board; Described connecting circuit forms test loop by slot and described functional module; Described display module is used for showing test result.
10. the proving installation of distribution network terminal device core board according to claim 9, is characterized in that, described distribution network terminal device core board at least comprises flash memory storage functional module, serial port function module, network interface card functional module and GPIO functional module; On described test board, correspondence is provided with serial ports connecting circuit, network interface card connecting circuit and GPIO connecting circuit; Described serial ports connecting circuit receives pin with the serial ports output pin on described core board and serial ports respectively by slot and is connected; Described network interface card connecting circuit receives pin with the network interface card output pin on described core board and network interface card respectively by slot and is connected; Described GPIO connecting circuit is connected with the GPIO port on described core board and core board bus respectively by slot.
CN201410432494.0A 2014-08-28 2014-08-28 Test method and test device of core board of distribution network terminal device CN104331061A (en)

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