CN109856473A - String signal self-identifying test method when a kind of changeable channel - Google Patents
String signal self-identifying test method when a kind of changeable channel Download PDFInfo
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- CN109856473A CN109856473A CN201811533854.0A CN201811533854A CN109856473A CN 109856473 A CN109856473 A CN 109856473A CN 201811533854 A CN201811533854 A CN 201811533854A CN 109856473 A CN109856473 A CN 109856473A
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Abstract
The invention discloses string signal self-identifying test method when a kind of changeable channel, this method may be implemented string signal when different model carrier rocket generalization test, avoid due to when string signal number of channels difference bring system application software and hardware modify problem.String signal self-identifying test method specifically includes that first when a kind of changeable channel of the invention, board is constituted in level detecting apparatus and detection signal using the included+5V voltage signal of cpci bus connector upper and lower ends spare pin and backboard, secondly, the reliable in bits number of test and judge board to detection signal is passed through by FPGA, again, the TCH test channel number of string signal when being determined according to the port number that conditioning circuit is isolated on board number and board, finally, total dynamic configuration is carried out to test software based on TCH test channel number, the self-identifying test of string signal when to realize to changeable channel.The method of the present invention is simple, Yi Shixian, at low cost, generalization degree is high.
Description
Technical field
The present invention relates to a kind of self-identifying test methods of string signal when changeable channel, belong to carrier rocket testing field.
Background technique
As active service is succeeded in developing and be included in new-generation digital carrier rocket, the New Launch based on digital signal
Transmitting controls the original simulation launching control equipment of equipment progressive updating, meanwhile, various control equipment, priming system number of devices on arrow
Amount increases considerably.The when string signal of carrier rocket is mainly responsible on arrow and respectively controls equipment, priming system, air feed equipment of powering opens
Dynamic and operation high-precision timing control.With the increase of relevant device quantity, the quantity of string signal also significantly increases when on arrow
Add, thus when also increasing in test macro string signal Measurement channel number.String signal measuring system when existing carrier rocket
Attached respectively according to the carrier rocket of different model, when string number of channels it is different because of test macro, be in particular in, when a kind of survey
When test system measures the when string signal of different model carrier rocket, string signal isolation conditioning board when needing in test macro
Quantity be adjusted, meanwhile, test software is recompilated, is debugged, this prevent the test macro of various rocket from
It is general.General Rocket test system can be effectively reduced the research and development cost of rocket, shorten R&D cycle and launch mission period,
And general test macro must have string signal number of channels self-recognition function when to test, to be gone here and there when realizing to changeable channel
The self-identifying of signal is tested.
Currently, not yet finding both at home and abroad about generalization Rocket test systematic account, string signal when for changeable channel
Self-identifying test method also without any public information.
Summary of the invention
The self-identifying test method of string signal when a kind of changeable channel of the invention, it is therefore an objective to by different numbers of channels
When string signal it is effective identification and adaptive configuration, solve new-generation digital carrier rocket when string signal test process in, survey
The problem of test system poor universality.
The object of the present invention is achieved like this:
The self-identifying test method of string signal when a kind of changeable channel, wherein being wrapped on string signal isolation conditioning board when single
Include 128 tunnels isolation conditioned signal module, when string signal isolation conditioning plate card connect with System Backplane by cpci bus connector,
Meanwhile FPGA control circuit is also connect with System Backplane, this method includes at least following steps:
Step 1: being utilized respectively board CPCI connector or more using+5V the signal on backboard as the signal in place of board
Free pointer is held to constitute board in level detecting apparatus；
Step 2: board is detected and judged in the board signal in place that level detecting apparatus transmits by FPGA, if
The upper and lower side of board signal in place is detectable, then is judged as that board is in place；If only single-ended signal in place is detectable, sentence
Break and be not reliably connected for board, is sent a warning message by FPGA；If upper and lower side signal in place is undetectable, it is judged as plate
Block not in place；
Step 3: by FPGA according to when being reliably connected string signal isolation conditioning board number, determine need detect when
String signal number of channels；
Step 4: by FPGA according to when string signal number of channels, to the program of part of data acquisition in fpga logic program
It is automatically configured, string signal number of channels when adapting to acquisition software automatically；
Step 5: according to string signal collecting test when main machine control signal starts carrier rocket is tested.
Accord to that technical scheme of the invention, the signal in place be required to when string signal isolation conditioning board printing electricity
Cpci bus connector upper and lower side on the plate of road respectively designs a signal line and is connected to the cpci bus connector upper and lower ends
Spare pin on.The System Backplane includes included+5V voltage signal, and with the cpci bus connector upper and lower ends
Spare pin constitutes board in level detecting apparatus and detection signal.
Accord to that technical scheme of the invention, the FPGA is located at another board, complete acquisition, judgement, early warning, framing and
Data uploading operation, the detection signal are connect with FPGA.
Detection whether conditioning plate is stuck in position is isolated in string signal when the present invention is realized to carrier rocket, and realizes clock synchronization
The judgement of string signal number of channels, enable FPGA according to when string signal number of channels carry out test software adaptive configuration,
Simple and practical, the versatility and testing reliability of string signal test macro when substantially increasing carrier rocket improve test system
The integrated testability efficiency of system.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is realization process flow diagram flow chart of the invention.
Specific embodiment
The self-identifying test method of string signal is done when in conjunction with attached drawing to a kind of changeable channel of the invention further retouches in detail
It states.
Fig. 1 be a kind of changeable channel of the invention when string signal self-identifying test method structural schematic diagram, wherein when
String signal isolation conditioning board is constituted by string signal isolation conditioning module circuit, cpci bus connector when 128 tunnel, and is passed through
Cpci bus connector is connected with System Backplane.+ 5V voltage signal is carried on System Backplane, which can be by CPCI
The connecting line designed on connector upper and lower side spare pin and board forms closed circuit.Conditioning plate card insertion was isolated in string signal at that time
When entering backboard ,+5V voltage signal can be connected to FPGA and be collected.If board has been reliably connected, upper and lower side signal in place
It can be detected, and it is in place by FPGA to be determined as board, when only detecting the single-ended signal in place of board, being determined as board cannot not
By connection, FPGA issues alarm signal.After FPGA is detected, string when being obtained according to board quantity, single board number of channels
Signal measurement port number, and configured based on program of the quantity to part of data acquisition in fpga logic program, make to acquire
String signal number of channels carries out the acquisition and processing of data when software is according on practical carrier rocket.
The realization process flow diagram flow chart of string signal self-identifying test method when Fig. 2 is a kind of changeable channel of the invention, we
The specific implementation process of method are as follows:
Step 1: being utilized respectively board CPCI connector or more using+5V the signal on backboard as the signal in place of board
Free pointer is held to constitute board in level detecting apparatus；
Step 2: board is detected and judged in the board signal in place that level detecting apparatus transmits by FPGA, if
The upper and lower side of board signal in place is detectable, then is judged as that board is in place, if only single-ended signal in place is detectable, sentences
Break and be not reliably connected for board, sent a warning message by FPGA, if upper and lower side signal in place is undetectable, is judged as plate
Block not in place；
Step 3: by FPGA according to when being reliably connected string signal isolation conditioning board number, determine need detect when
String signal number of channels；
Step 4: by FPGA according to when string signal number of channels, to the program of part of data acquisition in fpga logic program
It is automatically configured, string signal number of channels when adapting to acquisition software automatically；
Step 5: according to string signal collecting test when main machine control signal starts carrier rocket is tested.
Claims (5)
1. string signal self-identifying test method when a kind of changeable channel, wherein including on string signal isolation conditioning board when single
128 tunnels are isolated conditioned signal module, when string signal isolation conditioning plate card connect with System Backplane by cpci bus connector, together
When, FPGA control circuit is also connect with System Backplane, it is characterised in that this method at least includes the following steps:
Step 1: it is empty to be utilized respectively board CPCI connector upper and lower side using the+5V signal on backboard as the signal in place of board
Not busy pointer constitutes board in level detecting apparatus；
Step 2: board is detected and is judged in the board signal in place that level detecting apparatus transmits by FPGA, if board
Upper and lower side signal in place it is detectable, then be judged as that board is in place, if only single-ended signal in place is detectable, be judged as
Board is not reliably connected, is sent a warning message by FPGA, if upper and lower side signal in place is undetectable, is judged as board not
In place；
Step 3: determining the when string letter for needing to detect by FPGA according to string signal isolation conditioning board number when being reliably connected
Number number of channels；
Step 4: by FPGA according to when string signal number of channels, in fpga logic program part of data acquisition program carry out
It automatically configures, string signal number of channels when adapting to acquisition software automatically；
Step 5: according to string signal collecting test when main machine control signal starts carrier rocket is tested.
2. string signal self-identifying test method when variable conduit according to claim 1, it is characterised in that: the signal in place
Be required to when string signal isolation conditioning board printed circuit board on cpci bus connector upper and lower side respectively design a bars
Line.
3. string signal self-identifying test method when variable conduit according to claim 1 or 2, it is characterised in that: the CPCI
Bus connector upper and lower ends have spare pin, are connected respectively with the signal wire of the design.
4. string signal self-identifying test method when variable conduit according to claim 1 or 2, it is characterised in that: the system
Backboard includes included+5V voltage signal, and in place with cpci bus connector upper and lower ends spare pin composition board
Detection device and detection signal.
5. string signal self-identifying test method when variable conduit according to claim 1 or 4, it is characterised in that: the FPGA
Positioned at another board, completes acquisition, judgement, early warning, framing and data uploading operation, the detection signal and connect with FPGA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811533854.0A CN109856473A (en) | 2018-12-14 | 2018-12-14 | String signal self-identifying test method when a kind of changeable channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811533854.0A CN109856473A (en) | 2018-12-14 | 2018-12-14 | String signal self-identifying test method when a kind of changeable channel |
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| Publication Number | Publication Date |
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| CN109856473A true CN109856473A (en) | 2019-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811533854.0A Pending CN109856473A (en) | 2018-12-14 | 2018-12-14 | String signal self-identifying test method when a kind of changeable channel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113448903A (en) * | 2021-05-21 | 2021-09-28 | 山东英信计算机技术有限公司 | PCIe bandwidth adjustment method, device, equipment and storage medium for NVMe expansion card |
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