CN1126324C - Universal user board testing equipment - Google Patents
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- CN1126324C CN1126324C CN 00125746 CN00125746A CN1126324C CN 1126324 C CN1126324 C CN 1126324C CN 00125746 CN00125746 CN 00125746 CN 00125746 A CN00125746 A CN 00125746A CN 1126324 C CN1126324 C CN 1126324C
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Abstract
The present invention relates to universal user board testing equipment. The bus unit of the universal user board testing equipment is connected with a master control board with an embedded microprocessor, a signal source, a signal processing unit, a multifunctional board which comprises a clock unit and a communication unit, a power source control unit capable of respectively supplying power to the equipment and a board to be tested, a plurality of user board simulated testing units and a signal switching unit capable of selecting a signal path among the signal source, the signal processing unit and the board to be tested from the user board simulated testing units. The universal user board testing equipment has the advantages of wide range of application, high testing speed, convenient use, small volume, high safety and high reliability; besides, the universal user board testing equipment can be used for testing the user boards in all the models of various types of exchanging, accessing and transmitting equipment.
Description
The present invention relates to the telecommunication apparatus detection technique, be specifically related to the test of digital information exchange, access and transmitting device parts, more particularly, relate to a kind of general purpose test equipment that can test programme-controlled exchange, access, transmission equipment user plate.
User's plate is one of chief component of exchange, access and transmission equipment, also is to use maximum parts in exchange, access and the transmission equipment.Their functions in various device are the same substantially, just as required, may adopt different structures, way etc.In the production and maintenance process of exchange, access and transmission equipment, all need user's plate is carried out function and testing performance index, and wish to carry out fault location accurately out of order user's plate.
At present, most of user's board test apparatus are made of hardware and software, method of testing is to provide operational environment to user's plate, provide pumping signal to Board Under Test, detect its response signal simultaneously, according to by the response signal that recorded whether in prescribed limit, judge the whether normal of this user's plate by brake, some also can position corresponding fault, but they can only test one or more user's plates wherein.Change user's plate, the hardware and software of testing equipment will be done again, can not modular combination, and also various user's board test apparatus test speed is slower.Chinese invention patent CN1132993A discloses a kind of testing apparatus of user card of program controlled switch, selects circuit and A/D converter channel selection circuit to form by microcomputer, mains switch and power supply status monitoring circuit, derived digital signal, data receiver circuit, communicating circuit, simulation signal generator, phone state simulation circuit, subscriber line circuit.This user's board test device is the same with other at present all user's board test apparatus, and the testing time is longer, and operating efficiency is on the low side, and maximum problem is that versatility is poor, can only test one or more user's plates of its regulation.
The purpose of this invention is to provide a kind of universal user board testing equipment, this universal user board testing equipment can overcome the shortcoming that prior art exists, can test the various user's plates that comprise programme-controlled exchange, access, transmission equipment user plate, versatility is good, has the fast and fault location of test speed advantage accurately simultaneously.
Another object of the present invention provides a kind of universal user board testing equipment, and this testing equipment only need adopt electric main (220VAC) power supply, the security reliability height, and instrument and user's plate are easy to maintenance.
The object of the present invention is achieved like this, construct a kind of universal user board testing equipment, it is characterized in that, comprise bus unit and the master control borad that is connected with described bus unit, described master control borad comprises the embedded microprocessor unit, also be connected to interface of monitor and input keyboard interface, also comprise the unit that following and described bus unit is connected:
Be used for the signal source and the signal processing unit that various signals are provided and can handle various signals according to master control borad instruction;
Multifunction board comprises being used for providing the clock unit of clock signal to import/go out the communication unit of control and communication interface with providing to this testing equipment and tested user's plate;
Be used for providing the power module of power supply and the power control unit of control power supply supply to this testing equipment and tested user's plate;
Be used for being connected with signal processing unit with described signal source respectively and intending test cell by a plurality of user's template dies that described signal switch unit is connected with described tested user's plate;
Signal switch unit is used for the instruction according to master control borad, intends selecting the signal path of a conduct between described signal source and signal processing unit and described tested user's plate the test cell from a plurality of described user's template dies.
In according to universal user board testing equipment provided by the invention, described tested user's plate is connected to described bus unit by keyset.
In according to universal user board testing equipment provided by the invention, described user's template die is intended test cell and is comprised a plurality of bell flowing detecting circuits, polarity detection circuit, feed testing circuit, analog station circuit, current potential and A/D change-over circuit, A/D and D/A coding circuit, time slot control circuit.
In according to universal user board testing equipment provided by the invention, described embedded microprocessor unit in the described master control borad is connected to described bus unit by the bus driver unit, be connected with bus switching and decoding processing unit respectively with the input/output end port of described embedded microprocessor unit, described bus is switched and the decoding processing unit is connected with liquid crystal control board interface, membrane keyboard interface, bus verification unit and expansion bus driver element, and the input/output end port of described embedded microprocessor unit also is connected with keyboard interface, interface of monitor.
In according to universal user board testing equipment provided by the invention, described power subsystem comprises:
Softly switch off control circuit, be used for receiving control and turn-off the electric main supply;
Be used for will by the soft electric main that switches off control circuit input be converted to this testing equipment provide ± 5V, ± power module of 12V DC power supply;
Be used for and be converted to the 48VDC power module that provides to Board Under Test by the soft electric main that switches off control circuit input;
Power supply prompting and filtering circuit;
With the 48V voltage transitions of power module output be 5V power supply, ringing-current offer tested user's plate the ringing current power source module and and the may command Board Under Test power on automatically when the test, has surveyed the back electric switch unit in pass automatically;
Be used for when electric voltage exception, providing the electric voltage exception warning circuit of prompting;
Discharge circuit is used for testing the back release electrostatic at each piece Board Under Test, prevents electrostatic induction and the interference test to other Board Under Tests;
Described power protection and monitoring unit are powered to the described bus unit that comprises power line by the power supply output unit.
In according to universal user board testing equipment provided by the invention, described signal source comprises digital signal processor (DSP), the data storage, program storage, crystal oscillating circuit, reset circuit, dual bus transducer and the parallel/serial change-over circuit that directly are connected with described digital signal processor with signal processing unit, described serial/parallel change-over circuit is connected to user's template die by Switching Module and intends test cell, and described dual bus transducer is connected between described digital signal processor and the described bus unit.
In according to universal user board testing equipment provided by the invention, described user's template die is intended test cell and is comprised N road switch unit and connected bell flowing detecting circuit, N road polarity detection circuit, N line feed testing circuit, also comprise the N road analog station circuit that is connected with N road polarity detection circuit, the N road current potential and the A/D change-over circuit that are connected with N line feed testing circuit, comprise that also N channel time slot controls, A/D and D/A coding circuit and be connected this circuit and N road analog station circuit between N road discharge circuit, also comprise with the N road decoding of described N road bell flowing detecting circuit and control circuit and with described N channel time slot and controlling, clock and match circuit that A/D is connected with the D/A coding circuit.
In according to universal user board testing equipment provided by the invention, communication unit on the described multifunction board comprises I/O control unit and the communication interface that is connected with described bus unit respectively, also comprises the HDLC communication unit, RS485 communication unit, RS232 communication unit, twoport communication unit and the direct control unit that are connected with described communication interface respectively.
In according to universal user board testing equipment provided by the invention, clock unit on the described multifunction board comprises frequency generator, the crystal oscillating circuit that is connected with frequency generator, and signal offered the frequency dividing circuit of same-phase coupling and switch unit after the frequency generator output signal was carried out frequency division and frequency division is provided.
In according to universal user board testing equipment provided by the invention, described switch unit comprises the plate commutation circuit, by plate choosing and signal isolation circuit and program control, can specify the 1-N road of tested test plate (panel) simultaneously, described switching device can be that the relay group also can be an analog switch, signal switch unit comprises channel control unit, the control drive unit that is connected with channel control unit, the selection matrix that is connected with described control drive unit and be connected selection matrix and Board Under Test between holding wire.
Implement universal user board testing equipment provided by the invention, plurality of advantages is arranged than legacy user board test apparatus.At first, the scope of application is wider, and testing equipment of the present invention can be tested user's plate of various types of all models of exchange, access and transmission equipment.Very easy to use, because testing equipment of the present invention adopts the hardware and software modularized design, adopt the chip-scale module, hardware module can be inserted the optional position, so this testing equipment efficient height not only is easy to use, and the little fail safe of volume is good; Secondly, test speed is faster, in the present invention, owing to adopt multimode simulation test unit (more than 8), has improved test speed greatly.The multimode simulation test unit is made up of a plurality of chip-scale modules, each chip-scale module is made up of bell flowing detecting circuit, polarity detection circuit, feed testing circuit, analog station circuit, current potential and A/D change-over circuit, A/D and D/A coding circuit, time slot control circuit, can specify Board Under Test one to multi-channel test simultaneously with software control, operating efficiency improves greatly.In addition, testing equipment of the present utility model only need adopt electric main (220VAC) power supply, the security reliability height, instrument and user's plate are easy to maintenance, and, will to testing equipment itself provide power supply power module the power module that provides power supply to Board Under Test separately, Board Under Test powers on when test automatically, surveyed the back and closed electricity automatically, made more convenient, the safety of operation.In order to prevent electrostatic interference, also be added with discharge circuit at power subsystem.Power protection and supervisory circuit, undervoltage warning circuit can provide prompting when power supply is undesired.In addition, discrete logical device is integrated among the EPLD, can improves reliability, reduced volume.
Below in conjunction with drawings and Examples, characteristics of the present invention are described further.In the accompanying drawing:
Fig. 1 is the composition frame chart of universal user board testing equipment provided by the invention.
Fig. 2 is the composition frame chart of master control borad 101 among Fig. 1.
Fig. 3 is that signal takes place and the composition frame chart of processing unit 102 among Fig. 1.
Fig. 4 is the detailed composition frame chart of power control unit 106.
Fig. 5 is the detailed composition frame chart of communication part in the multifunction board 103 among Fig. 1.
Fig. 6 is a clock part composition frame chart in detail in the multifunction board 103 among Fig. 1
Fig. 7 is the detailed composition frame chart of user's board test module 104.
Fig. 8 is the schematic diagram of the process of explanation test bell signal, disconnected bell, dislodging signal, inside and outside circuit.
Fig. 9 is a schematic diagram of surveying polar circuit.
Figure 10 is a schematic diagram of surveying feed.
Figure 11 is a schematic diagram of surveying up speech channel, up attenuation, upstream noise.
Figure 12 is a schematic diagram of surveying descending speech channel, descending attenuation, descending noise.
Figure 13 is the detailed composition diagram of switch unit.
The general checkout equipment of user's plate of the present invention, be a kind of universal user board testing equipment, mainly comprise embedded microprocessing unit and peripheral hardware thereof based on class ISA platform, the signal source and the signal processing unit that are connected with microprocessing unit by bus interface, the multimode simulation test unit that is connected with signal processing unit with signal source and is connected with tested user's plate by switch unit, give this testing equipment and the clock unit of clock signal is provided for tested user's plate, give each chip distribution address that is connected with cpu bus in the microprocessing unit and decoding and the control circuit of reading and writing out test result, be connected in the digital switched circuit between signal source and signal processing unit and the tested user's plate.
In common user board test apparatus of the present invention, also comprise the power subsystem that power supply is provided to this testing equipment and tested user's plate, the signal source and the signal processing unit that are connected with microprocessing unit by bus interface, the multimode simulation test unit that is connected with signal processing unit with signal source and is connected with tested user's plate by switch unit, give this testing equipment and the clock unit of clock signal is provided for tested user's plate, give each chip distribution address that is connected with cpu bus in the microprocessing unit and decoding and the control circuit of reading and writing out test result, the digital switched circuit that is connected between signal source and signal processing unit and the tested user's plate is formed, be connected in the communicating circuit between microprocessor and the tested user's plate, be connected in the switch unit between multimode simulation test unit and the tested user's plate, the keyset that is connected in Board Under Test and bus board is formed.
In the common user board test apparatus of the present invention that Fig. 1 describes, comprise the master control borad 101 that is connected with each module by bus board 111 and enclose equipment monitor device interface 107, keyboard interface 108, the power module 110 and the power board 106 of power supply are provided to testing equipment self and tested user's plate, the digital switched circuit that is connected with microprocessing unit by communication interface, signal source and signal processing unit 102, the user's board test module 103 that is connected with signal processing unit 102 with signal source and is connected with tested user's plate by signal switch unit 105, give this testing equipment and clock signal is provided for tested user's plate, the multifunction board 102 of I/O control and communication, be used for testing user's board test module 104 of Board Under Test, in switch unit 106, also has the plate commutation circuit, by plate choosing and signal isolation circuit, with the 1-N road of the tested user's plate of software control nominative testing simultaneously.Fan 109 among the figure is directly driven by power module 110, is used for the heat radiation of testing equipment.Bus board 111 is connected to tested user's plate 113 by keyset 112.
As can be seen from Figure 2, master control borad 101 among Fig. 1 has an embedded microprocessor 201 and peripheral circuit thereof, specifically there are the bus driver 203, the bus that are connected with embedded microprocessor 201 to switch and decoding treatment circuit 205, in addition, interface of monitor 106 and keyboard interface 107 also are connected on the embedded microprocessor 210, comprise that also switching the liquid crystal control board interface 202, membrane keyboard interface 206, bus verification 204, the expansion bus that are connected with decoding treatment circuit 205 with bus drives 207.In specific embodiment, it is the microprocessor of PC104 that described embedded microprocessor 201 can adopt the model of Industry Control, and bus board can adopt the bus of class ISA, and it is the integrated circuit (IC) chip of MAX706 that reset circuit adopts model.
As can be seen from Figure 3, signal source and signal processing unit 102 (Fig. 1) are made up of DSP (digital signal processor) 301 and peripheral circuit thereof, wherein, data storage 305, program storage 307, crystal oscillating circuit 302, reset circuit 303, dual bus transducer 306 and the parallel/serial change-over circuit 304 that is directly connected to the DSP301 port arranged.Be connected the Switching Module 312 between parallel/serial change-over circuit 304 and the user's board test module 104 (Fig. 1) in addition.Among the figure, also illustrate by clock treatment circuit 310 and holding wire or the clock circuit 311 that exchanges clock signal is provided for Switching Module 312, this circuit also directly provides clock signal to tested user's plate 113.In an embodiment, DSP 301 can adopt the TMS320C50 chip, data storage 305 can adopt RAM, program storage 307 can adopt EPRAM, dual bus transducer 306 can either cooperate with the DPS bus, by can cooperating, and can coordinate betwixt and change, can adopt DRAM (dynamic random access memory) to realize with bus unit 111.
As can be seen from Figure 4, power subsystem be divided into to this testing equipment provide power supply power module 403, to Board Under Test 113 provide power supply power module 402, provide the power module of power supply and ringing current power source module 409, power supply prompting and filtering circuit 404 to switch unit, separate to the power module 403 of this testing equipment power supply with to the power module 402 that Board Under Test is powered, Board Under Test 113 powers on when test automatically, tests back outage automatically.In power subsystem, can also increase power protection and supervisory circuit 407, undervoltage warning circuit 405, power supply switch circuit 409, discharge circuit 406.As shown in Figure 4; power subsystem comprise to testing equipment self provide power supply ± 5V, ± 12V power module 403 ,-48V power module 402, power protection and supervisory circuit 407, ringing current power source module 409, power supply indication and filtering circuit 404, electric voltage exception warning circuit 405, power supply export 408, discharge circuit 406.To testing equipment self and separately power supply of Board Under Test.Power supply switch circuit 409 control Board Under Tests power on when test automatically, have surveyed the back and have closed automatically.Discharge circuit 406 tests the back release electrostatic at each piece Board Under Test, prevents electrostatic induction and the interference test to other Board Under Tests.Power protection and supervisory circuit 407 and electric voltage exception warning circuit 405 provide prompting when electric voltage exception.Soft switch switches off control circuit and 401 is used to cut off the supply of 220V electric main to power subsystem.In specific embodiment, ± 5V, ± 12V power module 403 can adopt NFS110-7601P, and-48V power module 402 can adopt NLP40-761AC/DC (220V-48V), and can adopt model in the ringing current power source module 409 is the integrated circuit of RDG4875F25.
Multifunction board comprises communication unit and clock unit.
As can be seen from Figure 5, communication unit comprises I/O control circuit 507 and the communication interface 501 that is connected with bus unit 111, and the HDLC communicating circuit 502 that is connected with communication interface 501, RS485 communicating circuit 503, RS232 communicating circuit 504, twoport communicating circuit 505, direct control circuit 506.In specific embodiment, it is the circuit of SAB82525NHSCXV2.1 that HDLC communicating circuit 502 can adopt model, it is the integrated circuit of MAX487 that RS485 communicating circuit 503 can adopt model, and it is the integrated circuit of ICL232CPE that RS232 communicating circuit 504 can adopt model.
As can be seen from Figure 6, clock unit comprises crystal oscillating circuit 601, frequency generator 602, frequency dividing circuit 603, clock is carried out same-phase coupling and commutation circuit 604.In force, frequency generator 602 adopts the MT9041 chip, and frequency dividing circuit 603 and the circuit 604 that clock is carried out the same-phase coupling and switches can adopt EPLD (programming device) to realize.The circuit 604 that clock is carried out same-phase coupling and switching can provide signal to HDLC communicating circuit 605, bus unit 111 and tested user's plate 113.
As can be seen from Figure 7, multimode simulation test unit 103 (Fig. 1) comprises bell flowing detecting circuit 701, polarity detection circuit 702, feed testing circuit 706, analog station circuit 703, current potential and A/D change-over circuit 708, time slot control, A/D and D/A coding circuit 705.Time slot control in force, A/D and D/A coding circuit 705 adopt 79Q021 or PEB2466.Described decoding and control circuit are made up of decoding circuit, chip select circuit, control circuit, also have discharge circuit in simulation test unit, adjust signal amplitude when being used for a little less than overflow or mistake.Can also come enhancing signal intensity and signal is isolated with drive circuit.When procedure quantity is big, in the peripheral circuit of CPU and DSP, increase data storage and program storage.
Describe test philosophy in detail below in conjunction with Fig. 8-12.
Fig. 8 is that explanation utilizes testing of equipment bell signal of the present invention, disconnected bell, dislodging signal, internal and external line to pass by the theory diagram of journey.As shown in the figure, Board Under Test 113 forms the test signal loop by N road switch unit 707, N road bell flowing detecting circuit 701, the decoding of N road and control circuit 710, bus unit 111 and communication interface 501.
1, survey the inside and outside line function (N=8～32) in N road:
Connect test loop, send out reset command to Board Under Test, after replying, send out the inside and outside circuit order of survey to Board Under Test, Board Under Test resets, in connect surveying outer relay, to answer signal, obtain information 1, send out again and survey the ringing-current order, give answer signal, obtain information 2, comparison information 1 and information 2 show test results.
2, survey N road ring, disconnected bell function (N=8～32):
Connect test loop, send out to Board Under Test and survey ringing-current, disconnected bell order, Board Under Test resets, and connects relay, ringing relay in the survey, gives answer signal, closes the ringing-current source, and testing equipment resets, and shows test results.
3, survey N road dislodging machine function (N=8～32):
Connect test loop, send out to Board Under Test and survey the order of dislodging machine, Board Under Test resets, and surveys the dislodging machine, gives answer signal, and testing equipment resets, and shows test results.
Fig. 9 utilizes present device that user's plate is surveyed N road polar circuit to carry out testing principle figure.As shown in the figure, Board Under Test 113 forms the test signal loop by N road switch unit 707, N road polarity detection circuit 702, the decoding of N road and control circuit 710, bus unit 111 and communication interface 501.
4. survey N road polar functionalities (N=8～32):
Connect test loop, send out to Board Under Test and survey the positive polarity order, reset, connect relay in the survey, return information, test is sent out the reversed polarity order to Board Under Test, and Board Under Test resets, and connects and surveys interior relay, connects polarity relay, and return information shows test results.
Figure 10 utilizes present device user's plate to be surveyed the theory diagram of N line feed.As shown in the figure, Board Under Test 113 forms the test signal loop by N road switch unit 707, N line feed testing circuit 706, N road current potential, A/D change-over circuit 708, the decoding of N road and control circuit 710, bus unit 111 and communication interface 501.
5. survey N line feed function (N=8～32):
Connect the loop, a Board Under Test is surveyed the feed order, and Board Under Test resets, relay in connection is surveyed, and return information is tested, and gets test result and demonstration.
Figure 11 utilizes present device user's plate to be surveyed the theory diagram of up speech channel, up attenuation, upstream noise.As shown in the figure, Board Under Test 113 forms the test signal loop by N road switch unit 707, N road analog station circuit 703, N road discharge circuit 704, time slot control, A/D and D/A coding circuit 705, bus unit 111, communication interface 501, decoding and control circuit 801 provide decoded signal to N road switch unit 707, N road analog station circuit 703 and time slot control, A/D and D/A coding circuit 705, clock is connected with bus unit 111 with match circuit 709, provides signal to time slot control, A/D and D/A coding circuit 705 and Switching Module 306.
6. survey the up speech channel function in N road (N=8～32):
Relay is set, connect the loop, send out the up session command of survey to Board Under Test, Board Under Test resets, it is logical to connect the interior relay of survey, and return information is sent out the descending session command of survey to DSP, the DSP pronunciation is signal frequently, convert 2M PCM sign indicating number to by also going here and there, get the 8MPCM sign indicating number by exchanges data again, send to Board Under Test, simulated audio signal is from the A of tested single board, the B line comes out, by the analog station circuit, discharge circuits etc. are to A/D, the D/A coding circuit obtains 2M (8M) PCM sign indicating number, by string and be transformed into DSP, by the signal correct judgment that relatively sends and receive whether DSP shows test results.
7. survey the up attenuation in N road, noise function (N=8～32):
Relay is set, connect the loop, send out the up attenuation of survey to Board Under Test, the noise order, Board Under Test resets, connect and survey interior relay, return information, send out the descending attenuation of survey to DSP, the noise order, DSP sends out the 1024HZ sinusoidal signal, converts 2M PCM sign indicating number to by also going here and there, and is getting 8M (2M) PCM sign indicating number by exchanges data, send to Board Under Test, simulated audio signal is from the A of tested single board, the B line comes out, by the analog station circuit, discharge circuits etc. are to A/D, the D/A coding circuit obtains 2M PCM sign indicating number, by string and be transformed into DSP, DSP judges the attenuation of signal by the signal that relatively sends and receive, use the spectrum analysis noise, return information shows test results.
Figure 12 utilizes present device user's plate to be surveyed the theory diagram of the descending speech channel in N road, descending attenuation, descending noise.As shown in the figure, Board Under Test 113 is by N road switch unit 707, N road analog station circuit 703, N road discharge circuit 704, time slot control, A/D and D/A coding circuit 705, bus unit 111, communication interface 501 and Switching Module 306 form the test signal loop, decoding and control circuit 801 provide decoded signal to N road switch unit 707, N road analog station circuit 703 and time slot control, A/D and D/A coding circuit 705, clock is connected with bus unit 111 with match circuit 709, provides signal to control to N channel time slot, A/D and D/A coding circuit 705 and Switching Module 306.
8. survey the descending speech channel function in N road (N=8～32):
Relay is set, connect the loop, send out the descending session command of survey to Board Under Test, Board Under Test resets, connect and survey interior relay, return information is sent out the descending session command of survey to DSP, the DSP pronunciation is signal frequently, convert 2M PCM sign indicating number to by also going here and there, get simulated audio signal, pass through discharge circuit by the D/A coding circuit, the analog station circuit is delivered to the A of tested single board, the B line, get 8M (2M) PCM sign indicating number by tested single board again, obtain 2M PCM sign indicating number by the exchanges data circuit, by string and be transformed into DSP, by the signal correct judgment that relatively sends and receive whether DSP, return information, display result.
9. survey the descending attenuation in N road, noise function (N=8～32):
Relay is set, connect the loop, send out survey attenuation down to Board Under Test, the order of noise road, Board Under Test resets, and it is logical to make the interior relay of survey, return information, send out the descending session command of survey to DSP, DSP sends out the 1024HZ sinusoidal signal, converts 2M PCM sign indicating number to by also going here and there, and gets simulated audio signal by the D/A coding circuit, pass through discharge circuit, the analog station circuit is delivered to the A of tested single board, the B line, get 8M (2M) PCM sign indicating number by tested single board again, obtain 2M PCM sign indicating number, by string and be transformed into DSP by the exchanges data circuit, DSP is by the attenuation of the signal of transmission and reception, use the spectrum analysis noise, return information, display result.
The protection range of universal user board testing equipment of the present invention is not limited to the description of this specification, on the basis of testing equipment in the present invention, increases the system that peripheral apparatus such as self-checking circuit and increase book film button constitute, and also belongs to scope of the present invention.
Claims (10)
1, a kind of universal user board testing equipment, it is characterized in that, comprise bus unit (111) and the master control borad (101) that is connected with described bus unit (111), described master control borad (101) comprises the embedded microprocessor unit, also be connected to interface of monitor (107) and input keyboard interface (108), also comprise the unit that following and described bus unit (111) is connected:
Be used for the signal source and the signal processing unit (102) that various signals are provided and can handle various signals according to master control borad instruction;
Multifunction board (103) comprises being used for providing the clock unit of clock signal to import/go out the communication unit of control and communication interface with providing to this testing equipment and tested user's plate (113);
Be used for providing the power module (110) of power supply and the power control unit (106) of control power supply supply to this testing equipment and tested user's plate (113);
Be used for being connected with signal processing unit 102 with described signal source respectively and intending test cell (104) by a plurality of user's template dies that described signal switch unit (105) is connected with described tested user's plate (113);
Signal switch unit (105), be used for instruction, intend selecting the signal path of a conduct between described signal source and signal processing unit (102) and described tested user's plate (113) the test cell (104) from a plurality of user's template dies according to main control unit (101).
According to the described universal user board testing equipment of claim 1, it is characterized in that 2, described tested user's plate (113) is connected to described bus unit (111) by keyset (112).
3, according to the described universal user board testing equipment of claim 1, it is characterized in that described user's template die is intended test cell (104) and comprised a plurality of bell flowing detecting circuits, polarity detection circuit, feed testing circuit, analog station circuit, current potential and A/D change-over circuit, A/D and D/A coding circuit, time slot control circuit.
4, according to the described universal user board testing equipment of claim 1, it is characterized in that, described embedded microprocessor unit (201) in the described master control borad (101) is connected to described bus unit (111) by bus driver unit (203), be connected with bus switching and decoding processing unit (205) respectively with the input/output end port of described embedded microprocessor unit (201), described bus is switched and decoding processing unit (205) is connected with liquid crystal control board interface (202), membrane keyboard interface (206), bus verification unit (204) and expansion bus driver element (207), the input/output end port of described embedded microprocessor unit (201) also is connected with keyboard interface (107), interface of monitor (106).
According to the described universal user board testing equipment of claim 1, it is characterized in that 5, described power subsystem (110) comprising:
Soft switch off control circuit (401) are used for receiving control and turn-off the electric main supply;
Be used for will by the soft electric main that switches off control circuit (401) input be converted to this testing equipment provide+5V ,+power module (403) of 12V DC power supply;
Be used for and be converted to the 48VDC power module (402) that provides to Board Under Test by the soft electric main that switches off control circuit (401) input;
Power supply prompting and filtering circuit (404);
With the 48V voltage transitions of power module (402) output be 5V power supply, ringing-current offer tested user's plate the ringing current power source module and and the may command Board Under Test power on automatically when the test, has surveyed the back electric switch unit (409) in pass automatically;
Be used for when electric voltage exception, providing the electric voltage exception warning circuit (405) of prompting;
Discharge circuit (406) is used for testing the back release electrostatic at each piece Board Under Test, prevents electrostatic induction and the interference test to other Board Under Tests;
Described power protection and monitoring unit (407) are powered to the described bus unit (111) that comprises power line by power supply output unit (408).
6, according to the described universal user board testing equipment of claim 1, it is characterized in that, described signal source and signal processing unit (102) comprise digital signal processor (301) and peripheral circuit thereof, in described peripheral circuit, data storage (305), program storage 307, crystal oscillating circuit (302), reset circuit (303), dual bus transducer (306) directly is connected with described digital signal processor with parallel/serial change-over circuit (304), described serial/parallel change-over circuit (304) is connected to user's template die by Switching Module (304) and intends test cell (104), and described dual bus transducer is connected between described digital signal processor (301) and the described bus unit (111).
7, according to the described universal user board testing equipment of claim 1, it is characterized in that, described user's template die is intended test cell (104) and is comprised N road switch unit (707) and connected bell flowing detecting circuit (701), N road polarity detection circuit (702), N line feed testing circuit (706), also comprise the N road analog station circuit (703) that is connected with N road polarity detection circuit (702), N road current potential that is connected with N line feed testing circuit (706) and A/D change-over circuit (708), comprise that also N channel time slot controls, A/D and D/A coding circuit (705) and be connected this circuit and N road analog station circuit (703) between N road discharge circuit (704), also comprise with the decoding of the N road of described N road bell flowing detecting circuit (701) and control circuit (710) and with described N channel time slot and controlling, clock that A/D is connected with D/A coding circuit (705) and match circuit (709).
8, according to the described universal user board testing equipment of claim 1, it is characterized in that, communication unit on the described multifunction board (103) comprises I/O control unit (507) and the communication interface (501) that is connected with described bus unit (111) respectively, also comprises the HDLC communication unit (502), RS485 communication unit (503), RS232 communication unit (504), twoport communication unit (505) and the direct control unit (506) that are connected with described communication interface (501) respectively.
9, according to the described universal user board testing equipment of claim 1, it is characterized in that, clock unit on the described multifunction board (103) comprises frequency generator (602), the crystal oscillating circuit (601) that is connected with frequency generator (602), and signal offered the frequency dividing circuit (603) of same-phase coupling and switch unit (604) after frequency generator (602) output signal was carried out frequency division and frequency division is provided.
10, according to the described universal user board testing equipment of claim 1, it is characterized in that, described switch unit (105) comprises the plate commutation circuit, by plate choosing and signal isolation circuit and program control, can specify the 1-N road of tested test plate (panel) simultaneously, described switching device can be that the relay group also can be an analog switch, signal switch unit comprises channel control unit (1002), the control drive unit that is connected with channel control unit (1003), the selection matrix (1005) that is connected with described control drive unit (1003) and be connected selection matrix (1005) and Board Under Test (113) between holding wire (1004).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00125746 CN1126324C (en) | 2000-10-18 | 2000-10-18 | Universal user board testing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00125746 CN1126324C (en) | 2000-10-18 | 2000-10-18 | Universal user board testing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1349329A CN1349329A (en) | 2002-05-15 |
| CN1126324C true CN1126324C (en) | 2003-10-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00125746 Expired - Lifetime CN1126324C (en) | 2000-10-18 | 2000-10-18 | Universal user board testing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1126324C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100372314C (en) * | 2004-08-18 | 2008-02-27 | 华为技术有限公司 | User circuit analogy interface index automatic test system and test method |
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| CN1307824C (en) * | 2003-10-24 | 2007-03-28 | 中兴通讯股份有限公司 | U port testing method of ISDN user plate |
| CN100396024C (en) * | 2005-11-03 | 2008-06-18 | 华为技术有限公司 | Testing device and testing method for exchanging network board |
| CN1888922B (en) * | 2006-07-19 | 2010-05-12 | 无锡凯尔科技有限公司 | Mobile telephone photographic module universal testing method and tester thereof |
| CN101146145B (en) * | 2007-04-20 | 2010-12-08 | 中兴通讯股份有限公司 | Automatic testing system and method for power on and power off of transmission device |
| CN102546291A (en) * | 2011-12-14 | 2012-07-04 | 北京华力创通科技股份有限公司 | Testing method, testing apparatus and testing system of device |
| CN104038645B (en) * | 2014-05-25 | 2016-06-01 | 来安县新元机电设备设计有限公司 | A kind of user card of program controlled switch maintenance conditions device |
| CN105445597B (en) * | 2014-09-04 | 2018-11-06 | 上海唐盛信息科技有限公司 | A kind of ALCN user board faults test method |
| CN105898082B (en) * | 2014-10-30 | 2019-10-18 | 重庆工业职业技术学院 | A kind of speech channel index testing device |
| CN106033093A (en) * | 2015-03-10 | 2016-10-19 | 中芯国际集成电路制造(上海)有限公司 | Auxiliary device for testing |
| CN108155979B (en) * | 2016-12-02 | 2020-01-14 | 电信科学技术研究院 | Detection equipment |
| CN108152702B (en) * | 2016-12-06 | 2020-06-12 | 英业达科技有限公司 | Test system suitable for NGFF slot in expansion circuit board |
| CN107918094A (en) * | 2017-11-10 | 2018-04-17 | 天津奥美自动化系统有限公司 | Portable Electric Actuator veneer detection device and its detection method |
-
2000
- 2000-10-18 CN CN 00125746 patent/CN1126324C/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100372314C (en) * | 2004-08-18 | 2008-02-27 | 华为技术有限公司 | User circuit analogy interface index automatic test system and test method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1349329A (en) | 2002-05-15 |
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Address after: 518057 Zhongxing building, science and technology south road, Nanshan District hi tech Industrial Park, Guangdong, Shenzhen Patentee after: ZTE Corporation Address before: 518057 Zhongxing building, science and technology south road, Nanshan District hi tech Industrial Park, Guangdong, Shenzhen Patentee before: Zhongxing Communication Co., Ltd., Shenzhen City |
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