CN104793097A - Automatic unmanned aerial vehicle cable net testing system and testing method - Google Patents
Automatic unmanned aerial vehicle cable net testing system and testing method Download PDFInfo
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- CN104793097A CN104793097A CN201510201776.4A CN201510201776A CN104793097A CN 104793097 A CN104793097 A CN 104793097A CN 201510201776 A CN201510201776 A CN 201510201776A CN 104793097 A CN104793097 A CN 104793097A
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Abstract
The invention discloses an automatic unmanned aerial vehicle cable net testing system and a testing method and relates to the field of measurement and automation. The system mainly comprises an upper computer, a controller and an electric connector interface adapter, wherein the upper computer is connected with the controller through an RS422 interface, and the controller is connected with the electric connector interface adapter through an I/O (input/output) interface. According to the testing method, automatic cable net testing software is run on the upper computer, generates an objective netlist file automatically according to a cable net wiring list inputted by an operator and loads the objective netlist file to the controller through the RS422 interface, the controller sends out logic level to a tested cable network through the electric connector interface adapter and reads back, connection or disconnection relations between any two wires in the cable net can be measured through a read logic level value and can be systemized to generate a measurement netlist file, and the measurement netlist file is compared with the objective netlist file, so that cable net faults can be detected and positioned. The automatic unmanned aerial vehicle cable net testing system and the testing method are capable of achieving accurate and rapid detection, so that a great quantity of time and manpower resources are saved.
Description
Technical field
The present invention relates to measurement and automatic field, be specifically related to a kind of unmanned plane cable grid Auto-Test System and method of testing.
Background technology
Unmanned plane cable grid is arranged on unmanned plane inside, and in order to connect the power interface of all avionics systems of unmanned plane, communication interface and control interface are the important component parts of unmanned plane.
The test job of current unmanned plane cable grid is primarily of manually completing.Because the scale of unmanned plane cable grid is relevant with unmanned plane body, unmanned plane take-off weight is larger, airborne Aerial Electronic Equipment is more complicated, its cable grid scale is also larger, meanwhile, for the unmanned plane of sizing batch production, its supporting cable grid also needs the test of dispatching from the factory of batch, therefore, the test job amount of unmanned plane cable grid is very large, needs manpower and the time of at substantial.In addition, cable grid test process belongs to the machinery work of repetitive, and workman tests rear easy fatigue for a long time and makes mistakes, and reduces product percent of pass of dispatching from the factory.
Summary of the invention
The present invention needs manual testing for solving the detection of existing unmanned plane cable grid, there is test cable grid efficiency low, easily makes mistakes, and high in cost of production problem, a kind of unmanned plane cable grid Auto-Test System and method of testing are provided.
Unmanned plane cable grid Auto-Test System, comprises host computer, controller and electrical connector interface adapter; Described host computer is connected by RS422 interface with controller, and controller is connected by I/O interface with electrical connector interface adapter; Described controller is made up of message processing module and electrical connector pins level module for reading and writing; Described message processing module receives the information of host computer, and to electrical connector pins level module for reading and writing output latch reset signal, read-write, address signal, GPIO preset value signal and data line D0 signal; Described electrical connector pins level module for reading and writing is made up of code translator, triple gate steering logic and multiple electrical connector pins level processing unit; Each electrical connector pins level processing unit is made up of input latch, output latch, input triple gate and two-way three-state door; Described code translator to input address signal carry out decoding after input to triple gate steering logic, with the read-write phase in triple gate steering logic and rear while as the control signal inputting triple gate and two-way three-state door in each electrical connector pins level processing unit; Output latch in described each electrical connector pins level processing unit receives GPIO preset value signal; Input triple gate in each electrical connector pins level processing unit receives data line D0 signal; Output latch in each electrical connector pins level processing unit and input latch receive latch reset signal; Two-way three-state door in each electrical connector pins level processing unit is connected to each electrical connector pins on electrical connector interface adapter respectively; Described electrical connector interface adapter for all electric connectors in tested cable grid being fitted to the controller in unmanned plane cable grid test macro, for realizing whole pin one_to_one corresponding of all electric connectors of each electrical connector pins level processing unit and tested cable grid.
Described electrical connector interface adapter is made up of multiple controller pairing electric connectors and multiple cable grid pairing electric connector, the quantity of described cable grid pairing electric connector is identical with the quantity of electric connector in tested cable grid, and cable grid is matched electric connector model in the model of electric connector and tested cable grid and matched and plug together; The quantity of described controller pairing electric connector is determined by the total number of pins of all electric connectors of tested cable grid.
The number of pins sum of all controller pairing electric connectors is more than or equal to all electrical connector pins number sums of tested cable grid, and the model of each controller pairing electric connector is identical, matches plug together with the electric connector model on controller.
Described message processing module is made up of CPU, SRAM, FLASH and RS422 controller, and described FLASH have cured built-in application program, after system electrification under the control of cpu, runs application in sram, program and data when storing operation in SRAM; CPU in message processing module receives host computer information by RS422 controller.
The quantity of described electrical connector pins level processing unit is identical with the total number of pins of all electric connectors of tested cable grid.
Unmanned plane cable grid automatic test approach, the method is realized by following steps:
Step one, on host computer, run cable grid automatic testing software, tested cable grid connection table is input in the database of cable grid automatic testing software, cable grid automatic testing software generates target network list file automatically according to the connection table of input, and by RS422 interface, target network list file is loaded on controller;
Step 2, first message processing module in described controller sends logic high to the first electrical connector pins level processing unit, transfer to other electrical connector pins level processing unit be connected by cable grid after described high level is output latches and be transfused to latches, message processing module is by reading the input latch value of other electrical connector pins level processing unit, judge whether the tested cable grid electrical connector pins corresponding to other electrical connector pins level processing unit is connected with the tested cable grid electrical connector pins corresponding to this electrical connector pins level processing unit, if what read back is high level, then represent and be connected, if low level, then represent not connected, all input latches and output latch reset by message processing module,
Message processing module in step 3, controller sends logic high to the second electrical connector pins level processing unit again, then the input latch value of other electrical connector pins level processing unit that reads back; If what read back is high level, then represents and be connected, if low level, then represent not connected; All input latches and output latch reset by described message processing module;
When message processing module sends logic high respectively to all electrical connector pins level processing units and after the input latch value of other electrical connector pins level processing unit that reads back, described break-make finish message generates by the message processing module measured in controller described in the break-make information that obtains in cable grid between any two electrical connector pins measures net meter file;
Step 4, the target network list file in the measurement net meter file generated in step 3 and step one to be contrasted, realize the fault detect to tested cable grid.
The invention has the beneficial effects as follows: to be compared with the cable grid connection table that host computer inputs by the break-make relation in controller automatic test unmanned plane cable grid between each electrical connector pins, accurately, detect rapidly and locate cable grid fault, save a large amount of time and human resources, reduce testing cost, improve testing efficiency.
Accompanying drawing explanation
Fig. 1 is unmanned plane cable grid Auto-Test System of the present invention composition structural representation;
Fig. 2 is unmanned plane cable grid Auto-Test System middle controller of the present invention composition structural representation;
Fig. 3 is electrical connector pins level processing module composition structural representation in unmanned plane cable grid Auto-Test System of the present invention;
Fig. 4 is be electrical connector interface adapter composition structural representation in unmanned plane cable grid Auto-Test System of the present invention;
Fig. 5 is tested cable grid composition structure and cable grid annexation schematic diagram in unmanned plane cable grid Auto-Test System of the present invention;
Fig. 6 is electrical connector interface adapter composition structure and annexation schematic diagram in unmanned plane cable grid Auto-Test System of the present invention.
Embodiment
Embodiment one, composition graphs 1 to Fig. 6 illustrate present embodiment, unmanned plane cable grid Auto-Test System, primarily of host computer, and controller and electrical connector interface adapter composition.Host computer is connected by RS422 interface with controller, and controller is connected by I/O interface with electrical connector interface adapter; Described controller is primarily of message processing module and electrical connector pins level module for reading and writing composition.Wherein message processing module is made up of CPU, SRAM, FLASH and RS422 controller.FLASH have cured built-in application program, is guided in SRAM by program curing under the control of cpu and run after system electrification.Program and data when storing operation in SRAM.CPU in message processing module receives host computer information by RS422 controller, then under the control of cpu, to electrical connector pins level module for reading and writing output latch reset signal, read-write, address signal, GPIO preset value signal and data line D0 signal.Described electrical connector pins level module for reading and writing is by code translator, and triple gate steering logic and multiple electrical connector pins level processing unit form; Wherein the quantity of electrical connector pins level processing unit is identical with the total number of pins of all electric connectors of tested cable grid.Described electrical connector pins level processing unit is primarily of input latch, and output latch, input triple gate and two-way three-state door form.
The address signal of code translator to input carries out decoding, and therefore the corresponding effective decoding in each address exports, and each decoding exports and is connected to triple gate steering logic, with read-write phase and form the control signal inputting triple gate and two-way three-state door respectively afterwards; GPIO preset value signal is connected to the output latch of each electrical connector pins level processing unit; Data line D0 signal is connected to the input triple gate of each electrical connector pins level processing unit, and the two-way three-state door of each electrical connector pins level processing unit is connected to each electrical connector pins on electrical connector interface adapter respectively; Latch reset signal is connected to input latch in all electrical connector pins level processing units and output latch.
Electrical connector interface adapter for all electric connectors in tested cable grid being fitted to the controller in unmanned plane cable grid test macro, to realize the one_to_one corresponding of whole pins of all electric connectors of each electrical connector pins level processing unit and tested cable grid.
Described electrical connector interface adapter is made up of multiple controller pairing electric connectors and multiple cable grid pairing electric connector, wherein the quantity of cable grid pairing electric connector is identical with the quantity of electric connector in tested cable grid, and cable grid is matched the model of electric connector in the model of electric connector and tested cable grid and matched and plug together.The quantity of controller pairing electric connector is determined by the total number of pins of all electric connectors of tested cable grid, and namely the number of pins sum of all controller pairing electric connectors is more than or equal to all electrical connector pins number sums of tested cable grid.The model of each controller pairing electric connector is identical, matches plug together with the electric connector model on controller.
In present embodiment, host computer adopts ordinary PC, and configures MOXA serial port board to realize the RS422 interface of host computer.The FPGA that controller selects ALTERA company to produce, model is EP1S80F1508C5, and controller composition structure as shown in Figure 2, examine now by NIOS II is soft, comprises CPU, SRAM, FLASH and RS422 controller by message processing module.FLASH have cured built-in application program, is guided in SRAM by program curing under the control of cpu and run after system electrification.Program and data when storing operation in SRAM.The electrical connector pins level module for reading and writing of controller inside is realized by logic gates.As shown in Figure 3, wherein the quantity of electrical connector pins level processing unit is identical with the total number of pins of all electric connectors of tested cable grid for electrical connector pins level module for reading and writing composition structure.In order to set forth present embodiment clearly, the simplest example is adopted to be described.
In present embodiment, as shown in Figure 5, tested cable grid is made up of three electric connectors, is respectively the XCE14T3Z that Zhengzhou Astronautic Electronic Technology Co., Ltd. produces for tested cable grid composition structure and cable grid annexation
1p, XCE14T4Z
1p and XCE14T7Z
1p.Wherein, electric connector XCE14T3Z
1p comprises 3 pins, electric connector XCE14T4Z
1p comprises 4 pins, electric connector XCE14T7Z
1p comprises 7 pins.Electric connector XCE14T7Z
17 pins of P respectively with electric connector XCE14T3Z
13 pins of P and electric connector XCE14T4Z
14 pins of P are connected.Electrical connector interface adapter for all electric connectors in tested cable grid being fitted to the controller in unmanned plane cable grid test macro, to realize the one_to_one corresponding of whole pins of all electric connectors of each electrical connector pins level processing unit and tested cable grid.
In present embodiment, electrical connector interface adapter is made up of a controller pairing electric connector and three cable grid pairing electric connectors, and its composition structure and annexation are as shown in Figure 6.Three cable grid pairing electric connector models are XCE14F3K
1p, XCE14F4K
1p and XCE14F7K
1p, respectively with tested cable grid electric connector XCE14T3Z
1p, XCE14T4Z
1p and XCE14T7Z
1p pairing plugs together.Controller pairing electric connector model is J30J-15TJL7, matches plug together with the electric connector J30J-15ZKWP42 on controller.Under the adaptation effect of electrical connector interface adapter, each pin of all electric connectors of tested cable grid is by each electrical connector pins level processing unit of being mapped to one by one on controller.In the present embodiment, the electric connector quantity of tested cable grid is 3, so in electrical connector interface adapter cable grid pairing electric connector quantity N be 3, because total number of pins of all electric connectors in tested cable grid is 14, and the number of pins of each controller pairing electric connector is 15 in electrical connector interface adapter, so only need a controller pairing electric connector can cover total number of pins of all electric connectors in tested cable grid, therefore in the present embodiment, the quantity M of electrical connector interface adapter middle controller pairing electric connector is 1, pin level processing units quantity K in controller is 14.
Embodiment two, present embodiment are the method for testing of the unmanned plane cable grid Auto-Test System described in embodiment one, and the method is realized by following steps:
One, on host computer, cable grid ATS software is run;
Two, tested cable grid connection table is input in the database of cable grid automatic testing software, in tested cable grid connection table, contains the annexation in tested cable grid between cable;
Three, the tested cable grid connection table of cable grid automatic testing software root input generates target network list file automatically, and by RS422 interface, target network list file is loaded on controller;
Four, first message processing module in controller sends logic high to first electrical connector pins level processing unit, transfer to other electrical connector pins level processing unit be connected by cable grid after this high level is output latches and be transfused to latches, message processing module is by reading second input latch value to the 14 electrical connector pins level processing unit, can judge whether the tested cable grid electrical connector pins corresponding to second to the 14 electrical connector pins level processing unit is connected with the tested cable grid electrical connector pins corresponding to first electrical connector pins level processing unit, if what read back is high level, then represent and be connected, if low level, then represent not connected, after executing this step, all input latches and output latch reset by message processing module,
Five, message processing module sends logic high to second electrical connector pins level processing unit, and then the 3rd the input latch value to the 14 electrical connector pins level processing unit of reading back, can judge whether the tested cable grid electrical connector pins corresponding to the 3rd to the 14 electrical connector pins level processing unit is connected with the tested cable grid electrical connector pins corresponding to second electrical connector pins level processing unit, if what read back is high level, then represent and be connected, if low level, then represent not connected, after executing this step, all input latches and output latch reset by message processing module,
Six, message processing module sends logic high to the 3rd electrical connector pins level processing unit, and then the 4th the input latch value to the 14 electrical connector pins level processing unit of reading back, can judge whether the tested cable grid electrical connector pins corresponding to the 4th to the 14 electrical connector pins level processing unit is connected with the tested cable grid electrical connector pins corresponding to the 3rd electrical connector pins level processing unit, if what read back is high level, then represent and be connected, if low level, then represent not connected, after executing this step, all input latches and output latch reset by message processing module,
Seven, according to the method described above by that analogy, until message processing module sends logic high to the 13 electrical connector pins level processing unit, and then the input latch value of the 14 the electrical connector pins level processing unit that read back, can judge whether the tested cable grid electrical connector pins corresponding to the 14 electrical connector pins level processing unit is connected with the tested cable grid electrical connector pins corresponding to the 13 electrical connector pins level processing unit, if what read back is high level, then represent and be connected, if low level, then represent not connected, after executing this step, all input latches and output latch reset by message processing module,
Eight, when message processing module sends logic high respectively respectively to all electrical connector pins level processing units and after the input latch value of other electrical connector pins level processing unit that reads back, can measure the break-make relation obtained in cable grid between any two electrical connector pins, this break-make relation arranges to generate by the message processing module in controller measures net meter file;
Nine, net meter file will be measured and target network list file contrasts, and can detect and locate cable grid fault
Ten, cable grid failure message is uploaded to host computer by RS422 interface by controller, and host computer cable grid automatic testing software generates tested cable grid test report according to cable grid failure message, and so far test process terminates.
Controller EP1S80F1508C5 described in present embodiment has 1212 I/O interfaces, 1212 electrical connector pins level processing units can be distributed at most, namely the tested cable grid with 1212 total number of pins of electric connector can be tested, actual test result shows, when tested cable grid connection table is input to after in the database of cable grid automatic testing software, the time of testing a set of cable grid is less than 1s.
Present embodiment is by the break-make relation in the tested unmanned plane cable grid of automatic test between each electrical connector pins and compare with the cable grid connection table that host computer inputs, accurately, detect rapidly and locate cable grid fault, save time and human resources, reduce testing cost, improve testing efficiency.
Claims (7)
1. unmanned plane cable grid Auto-Test System, comprises host computer, controller and electrical connector interface adapter; Described host computer is connected by RS422 interface with controller, and controller is connected by I/O interface with electrical connector interface adapter; It is characterized in that, described controller is made up of message processing module and electrical connector pins level module for reading and writing; Described message processing module receives the information of host computer, and to electrical connector pins level module for reading and writing output latch reset signal, read-write, address signal, GPIO preset value signal and data line D0 signal;
Described electrical connector pins level module for reading and writing is made up of code translator, triple gate steering logic and multiple electrical connector pins level processing unit; Each electrical connector pins level processing unit is made up of input latch, output latch, input triple gate and two-way three-state door;
Described code translator to input address signal carry out decoding after input to triple gate steering logic, with the read-write phase in triple gate steering logic and rear while as the control signal inputting triple gate and two-way three-state door in each electrical connector pins level processing unit;
Output latch in described each electrical connector pins level processing unit receives GPIO preset value signal; Input triple gate in each electrical connector pins level processing unit receives data line D0 signal; Output latch in each electrical connector pins level processing unit and input latch receive latch reset signal; Two-way three-state door in each electrical connector pins level processing unit is connected to each electrical connector pins on electrical connector interface adapter respectively;
Described electrical connector interface adapter for all electric connectors in tested cable grid being fitted to the controller in unmanned plane cable grid test macro, for realizing whole pin one_to_one corresponding of all electric connectors of each electrical connector pins level processing unit and tested cable grid.
2. described unmanned plane cable grid Auto-Test System according to claim 1, it is characterized in that, described electrical connector interface adapter is made up of multiple controller pairing electric connectors and multiple cable grid pairing electric connector, the quantity of described cable grid pairing electric connector is identical with the quantity of electric connector in tested cable grid, and cable grid is matched electric connector model in the model of electric connector and tested cable grid and matched and plug together; The quantity of described controller pairing electric connector is determined by the total number of pins of all electric connectors of tested cable grid.
3. unmanned plane cable grid Auto-Test System according to claim 2, it is characterized in that, the number of pins sum of all controller pairing electric connectors is more than or equal to all electrical connector pins number sums of tested cable grid, the model of each controller pairing electric connector is identical, matches plug together with the electric connector model on controller.
4. unmanned plane cable grid Auto-Test System according to claim 1, it is characterized in that, described message processing module is made up of CPU, SRAM, FLASH and RS422 controller, described FLASH have cured built-in application program, after system electrification under the control of cpu, run application in sram, program and data when storing operation in SRAM; CPU in message processing module receives host computer information by RS422 controller.
5. unmanned plane cable grid Auto-Test System according to claim 1, is characterized in that, the quantity of described electrical connector pins level processing unit is identical with the total number of pins of all electric connectors of tested cable grid.
6. the method for testing of the unmanned plane cable grid Auto-Test System according to claim 1-5 any one claim, it is characterized in that, the method is realized by following steps:
Step one, on host computer, run cable grid automatic testing software, tested cable grid connection table is input in the database of cable grid automatic testing software, cable grid automatic testing software generates target network list file automatically according to the connection table of input, and by RS422 interface, target network list file is loaded on controller;
Step 2, first message processing module in described controller sends logic high to the first electrical connector pins level processing unit, transfer to other electrical connector pins level processing unit be connected by cable grid after described high level is output latches and be transfused to latches, message processing module is by reading the input latch value of other electrical connector pins level processing unit, judge whether the tested cable grid electrical connector pins corresponding to other electrical connector pins level processing unit is connected with the tested cable grid electrical connector pins corresponding to this electrical connector pins level processing unit, if what read back is high level, then represent and be connected, if low level, then represent not connected, all input latches and output latch reset by message processing module,
Message processing module in step 3, controller sends logic high to the second electrical connector pins level processing unit again, then the input latch value of other electrical connector pins level processing unit that reads back; If what read back is high level, then represents and be connected, if low level, then represent not connected; All input latches and output latch reset by described message processing module;
When message processing module sends logic high respectively to all electrical connector pins level processing units and after the input latch value of other electrical connector pins level processing unit that reads back, described break-make finish message generates by the message processing module measured in controller described in the break-make information that obtains in cable grid between any two electrical connector pins measures net meter file;
Step 4, the target network list file in the measurement net meter file generated in step 3 and step one to be contrasted, realize the fault detect to tested cable grid.
7. unmanned plane cable grid automatic test approach according to claim 6, it is characterized in that, also comprise step 4, tested cable grid failure message is uploaded to host computer by RS422 interface by controller, cable grid failure message prints and generates test report by described host computer cable grid automatic testing software.
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