CN103124242B - Method for transmitting signals - Google Patents
Method for transmitting signals Download PDFInfo
- Publication number
- CN103124242B CN103124242B CN201110367136.2A CN201110367136A CN103124242B CN 103124242 B CN103124242 B CN 103124242B CN 201110367136 A CN201110367136 A CN 201110367136A CN 103124242 B CN103124242 B CN 103124242B
- Authority
- CN
- China
- Prior art keywords
- signal
- data
- discrete
- relaying
- photoelectric adapter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Bus Control (AREA)
- Communication Control (AREA)
Abstract
The invention provides a kind of method for transmitting signals.Relate to the communications field; Solve the problem not existing and discrete I/O signal is carried out to relay process mechanism.The method comprises: discrete I/O signal collected by relaying card; Described relaying card processes described discrete I/O signal, obtains the data of photoelectric adapter bus interface form; Described data are sent to described photoelectric adapter by the bus interface between described photoelectric adapter by described relaying card.Technical scheme provided by the invention is applicable to MARS, achieves the process of MARS to discrete I/O signal.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of method for transmitting signals.
Background technology
Multipurpose avionics relay system (MARS) is used for realizing the avionics junction network of Long-range links between discrete laboratory, be connected with various electric interfaces by multiple electric adapter, the data format that different transform electric becomes MARS to need by multiple electric adapter, data transaction becomes light signal to transmit by a photoelectric adapter; The light signal received is changed into the data format required for electric adapter by another photoelectric adapter, and electric adapter receives data and exports various electric signal, completes the relaying of electric signal.
In MARS system, how relay process is carried out to discrete I/O signal, go back the mechanism that neither one is clear and definite at present.
Summary of the invention
The invention provides a kind of method for transmitting signals, solve the problem not existing and discrete I/O signal is carried out to relay process mechanism.
A kind of method for transmitting signals, comprising:
Discrete I/O signal collected by relaying card;
Described relaying card processes described discrete I/O signal, obtains the data of photoelectric adapter bus interface form;
Described data are sent to described photoelectric adapter by the bus interface between described photoelectric adapter by described relaying card.
Preferably, described relaying card processes described discrete I/O signal, and the data obtaining photoelectric adapter bus interface form comprise:
Level conversion is carried out to described discrete I/O signal, obtains TTL signal;
Described TTL signal is sampled, forms the data of described photoelectric adapter bus interface form.
Preferably, describedly to sample to described TTL signal, the data forming described photoelectric adapter bus interface form are specially:
Described TTL signal is sampled according to 32,000,000 clocks, forms the data of described photoelectric adapter bus interface form.
Preferably, the method also comprises:
When described photoelectric adapter receives the data of described relaying card transmission first, the data receiver FIFO of described photoelectric adapter is resetted.
Preferably, described discrete I/O signal is specially ARINC429 agreement electric signal, and described relaying fixture body is ARINC429 relaying card.
Present invention also offers a kind of method for transmitting signals, in multipurpose avionics relay system, the method comprises:
Certainly the data be externally received, by the bus interface between relaying card, are sent to described relaying card by photoelectric adapter;
Described relaying card processes the data received from described photoelectric adapter, obtains discrete I/O signal;
Described relaying cartoon sends described discrete I/O signal to the bus interface of described discrete I/O signal form.
Preferably, described relaying card processes the data received from described photoelectric adapter, obtains discrete I/O signal and comprises:
The data received from described photoelectric adapter split by described relaying card, and sample to the data after splitting, and obtain TTL signal;
Described relaying card carries out level conversion to described TTL signal, obtains discrete I/O signal.
Preferably, the data after described fractionation are carried out sampling and are specially:
Data after described fractionation are sampled according to 32,000,000 clocks, forms TTL signal.
Preferably, described discrete I/O signal is specially ARINC429 agreement electric signal, and described relaying fixture body is ARINC429 relaying card.
The invention provides a kind of method for transmitting signals, discrete I/O signal collected by relaying card, described discrete I/O signal is processed, obtains the data of photoelectric adapter bus interface form, more described data are sent to described photoelectric adapter by the bus interface between described photoelectric adapter; Or, photoelectric adapter is by the bus interface between relaying card, certainly the data be externally received are sent to described relaying card, by relaying card, the data received from described photoelectric adapter are processed again, obtain discrete I/O signal, and send described discrete I/O signal to the bus interface of described discrete I/O signal form.To achieve in MARS the relay process of discrete I/O signal and transmission, solve the problem not existing and discrete I/O signal is carried out to relay process mechanism.
Accompanying drawing explanation
The flow chart of a kind of method for transmitting signals that Fig. 1 provides for embodiments of the invention;
Fig. 2 is schematic diagram of sampling in embodiments of the invention;
Fig. 3 is that photoelectric adapter copies post-sampling speed stepping schematic diagram to data;
The flow chart of a kind of method for transmitting signals that Fig. 4 provides for embodiments of the invention;
Two-way handling process schematic diagram in the method for transmitting signals that Fig. 5 provides for embodiments of the invention.
Embodiment
In MARS system, how relay process is carried out to discrete I/O signal, go back the mechanism that neither one is clear and definite at present.
In order to solve the problem, The embodiment provides a kind of method for transmitting signals.The method for transmitting signals that embodiments of the invention provide only needs electric signal waveform acquisition, playback, coordinates the relaying of photoelectric adapter realization to discrete I/O signal.Discrete I/O signal adopts transparent transmission, reproduces the signal sequence of source in communication opposite end completely, can channel transmission simultaneously, improves laboratory system integrated level.
Hereinafter will be described in detail to embodiments of the invention by reference to the accompanying drawings.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combination in any mutually.
For convenience of description, in the embodiment of the present invention, be described for ARINC429 agreement electric signal (a kind of discrete I/O signal), the relaying fixture body matched with it is ARINC429 relaying card.
ARINC429 relaying card carries out protocol analysis to electric signal, and data storage forwarding is directly applied in MARS and can causes data delay.
Embodiments provide a kind of method for transmitting signals, relate to communication, handshaking and signal conversion, be mainly used in converting optical transport to ARINC429 electrical communications to by photoelectric adapter, and be reduced into former electric signal.ARINC429 relay transmission be not only the correct data of electrical communications, but the state reappearing transmission line is completely (such as: electric signal is interfered and produces the waveform of mistake; Fault distortion causing signal of circuit etc.), the electric signal before reduction relaying, bus transmitted, not carrying out any parameter modification to signal, is only the change of transmission medium.
Thus, ARINC429 multiple unit can be realized and merge relaying, simplify circuit, extend bus transfer distance.
The flow process of the method for transmitting signals settling signal transmission using embodiments of the invention to provide as shown in Figure 1, comprising:
Discrete I/O signal collected by step 101, relaying card;
In this step, ARINC429 relaying card is selected to collect ARINC429 agreement electric signal.
Step 102, described relaying card process described discrete I/O signal, obtain the data of photoelectric adapter bus interface form;
This step specifically comprises:
ARINC429 relaying card carries out level conversion to described ARINC429 agreement electric signal, obtains TTL signal;
ARINC429 relaying card is sampled to described TTL signal, forms the data of described photoelectric adapter bus interface form.
Preferably, when sampling to described TTL signal, can sample according to 32,000,000 clocks, forming the data of described photoelectric adapter bus interface form.Generally, sample rate is 32MHz, as shown in Figure 2, meets conventional ARINC429 speed 100Khz, 12.5Khz, 50Khz.In addition, can also be copied by photoelectric adapter to data, reduce sampling rate, realizing 2-32MHz stepping sampling, at double stepping, as shown in Figure 3, is the sampling schematic diagram of stepping between 32MHz and 16MHz.
Described data are sent to described photoelectric adapter by the bus interface between described photoelectric adapter by step 103, described relaying card;
Preferably, when described photoelectric adapter receives the data of described ARINC429 relaying card transmission first, the data receiver FIFO of described photoelectric adapter is resetted.Because data sampling carries out always, when photoelectricity adaptation is not started working, there is a large amount of invalid data, unnecessary delay can have been caused.In order to avoid postponing, preferably, can reset to the data receiver FIFO of photoelectric adapter when photoelectric adapter first time access ARINC429 relaying.
Corresponding with above-mentioned transmission flow, when receiving the light signal that Correspondent Node sends, also need to process accordingly, light signal to be converted to local accessible electric signal.Still be described for ARINC429 agreement electric signal, idiographic flow as shown in Figure 4, comprising:
Certainly the data be externally received, by the bus interface between relaying card, are sent to described relaying card by step 401, photoelectric adapter;
In this step, ARIN429 relaying cartoon crosses the bus interface between described photoelectric adapter, receives the data that photoelectric adapter sends.
Step 402, described relaying card process the data received from described photoelectric adapter, obtain discrete I/O signal;
This step specifically comprises:
1, the data received from described photoelectric adapter split by described ARINC429 relaying card, and carry out sampling output to the data after splitting, and obtain TTL signal;
The data being sent to ARINC429 relaying card by bus interface due to photoelectric adapter are photoelectric adapter bus interface forms, ARINC429 protocol devices can not directly use this data, therefore first ARINC429 relaying calorie requirement processes the data received from photoelectric adapter.
Preferably, sample frequency is 32MHz, forms TTL signal.
2, described relaying card carries out level conversion to described TTL signal, obtains discrete I/O signal;
In this step, discrete I/O signal is specially ARINC429 agreement electric signal.
Step 403, described relaying cartoon send described discrete I/O signal to the bus interface of described discrete I/O signal form;
In this step, the ARINC429 agreement electric signal that obtains is by ARINC429 bus interface by after conversion for ARINC429 relaying card, and externally ARINC429 equipment sends.
Generally, output speed 32MHz.The delay of ARINC429 agreement electric signal between relaying input and relaying export is 2us.
In the MARS of application relaying card, two-way signal processing flow as shown in Figure 5.
It should be noted that, embodiments of the invention are only described for the flow process of ARINC429 agreement to the discrete I/O signal of MARS process, in fact, any other discrete I/O signal (non real-time bus signals), as RS232, RS422, isolation IO, LVDS input and output, TTL input and output ..., the Signal transmissions in MARS is all completed by the flow process described in embodiments of the invention.
The embodiment provides a kind of method for transmitting signals, discrete I/O signal collected by relaying card, described discrete I/O signal is processed, obtain the data of photoelectric adapter bus interface form, more described data are sent to described photoelectric adapter by the bus interface between described photoelectric adapter; Or, photoelectric adapter is by the bus interface between relaying card, certainly the data be externally received are sent to described relaying card, by relaying card, the data received from described photoelectric adapter are processed again, obtain discrete I/O signal, and send described discrete I/O signal to the bus interface of described discrete I/O signal form.To achieve in MARS the relay process of discrete I/O signal and transmission, solve the problem not existing and discrete I/O signal is carried out to relay process mechanism.
One of ordinary skill in the art will appreciate that all or part of step of above-described embodiment can use computer program flow process to realize, described computer program can be stored in a computer-readable recording medium, described computer program (as system, unit, device etc.) on corresponding hardware platform performs, when performing, step comprising embodiment of the method one or a combination set of.
Alternatively, all or part of step of above-described embodiment also can use integrated circuit to realize, and these steps can be made into integrated circuit modules one by one respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
Each device/functional module/functional unit in above-described embodiment can adopt general calculation element to realize, and they can concentrate on single calculation element, also can be distributed on network that multiple calculation element forms.
Each device/functional module/functional unit in above-described embodiment using the form of software function module realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.The above-mentioned computer read/write memory medium mentioned can be read-only memory, disk or CD etc.
Anyly be familiar with those skilled in the art in the technical scope that the present invention discloses, change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range described in claim.
Claims (7)
1. a method for transmitting signals, is characterized in that, be applied in multipurpose avionics relay system, the method comprises:
Discrete I/O signal collected by relaying card;
Described relaying card processes described discrete I/O signal, obtains the data of photoelectric adapter bus interface form; Comprise: level conversion is carried out to described discrete I/O signal, obtain transistor-transistor logic level TTL signal; Described TTL signal is sampled, forms the data of described photoelectric adapter bus interface form;
Described data are sent to described photoelectric adapter by the bus interface between described photoelectric adapter by described relaying card.
2. method for transmitting signals according to claim 1, is characterized in that, describedly samples to described TTL signal, and the data forming described photoelectric adapter bus interface form are specially:
Described TTL signal is sampled according to 32,000,000 clocks, forms the data of described photoelectric adapter bus interface form.
3. method for transmitting signals according to claim 1, is characterized in that, the method also comprises:
When described photoelectric adapter receives the data of described relaying card transmission first, the data receiver FIFO of described photoelectric adapter is resetted.
4. method for transmitting signals according to claim 1, is characterized in that, described discrete I/O signal is specially ARINC429 agreement electric signal, and described relaying fixture body is ARINC429 relaying card.
5. a method for transmitting signals, is characterized in that, be applied in multipurpose avionics relay system, the method comprises:
Certainly the data be externally received, by the bus interface between relaying card, are sent to described relaying card by photoelectric adapter;
Described relaying card processes the data received from described photoelectric adapter, obtains discrete I/O signal; Comprise: the data received from described photoelectric adapter split by described relaying card, and the data after splitting are sampled, obtain transistor-transistor logic level TTL signal; Described relaying card carries out level conversion to described TTL signal, obtains discrete I/O signal;
Described relaying cartoon sends described discrete I/O signal to the bus interface of described discrete I/O signal form.
6. method for transmitting signals according to claim 5, is characterized in that, the data after described fractionation are carried out sampling and are specially:
Data after described fractionation are sampled according to 32,000,000 clocks, forms TTL signal.
7. method for transmitting signals according to claim 5, is characterized in that, described discrete I/O signal is specially ARINC429 agreement electric signal, and described relaying fixture body is ARINC429 relaying card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110367136.2A CN103124242B (en) | 2011-11-18 | 2011-11-18 | Method for transmitting signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110367136.2A CN103124242B (en) | 2011-11-18 | 2011-11-18 | Method for transmitting signals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103124242A CN103124242A (en) | 2013-05-29 |
| CN103124242B true CN103124242B (en) | 2015-08-19 |
Family
ID=48455102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110367136.2A Active CN103124242B (en) | 2011-11-18 | 2011-11-18 | Method for transmitting signals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103124242B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1964363A (en) * | 2006-11-28 | 2007-05-16 | 上海电器科学研究所（集团）有限公司 | Configurable I/O module with multiple bus interface |
| CN101262463A (en) * | 2007-03-07 | 2008-09-10 | 佳能株式会社 | Transmitting device and control method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6826155B1 (en) * | 1999-07-28 | 2004-11-30 | Legerity, Inc. | Apparatus and method for facilitating standardized testing of signal lines |
-
2011
- 2011-11-18 CN CN201110367136.2A patent/CN103124242B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1964363A (en) * | 2006-11-28 | 2007-05-16 | 上海电器科学研究所（集团）有限公司 | Configurable I/O module with multiple bus interface |
| CN101262463A (en) * | 2007-03-07 | 2008-09-10 | 佳能株式会社 | Transmitting device and control method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 《CAN总线光纤通信接口设计》;张鑫等;《西北大学学报》;20080430;第38卷(第2期);第2-3页及图1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103124242A (en) | 2013-05-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109450759B (en) | System for FC-AE-1553 bus control node equipment | |
| CN102253913B (en) | Device for carrying out state acquisition and output control on multi-board-card port | |
| CN102169470B (en) | Conversion bridge from advanced high performance bus (AHB) to basic virtual component interface (BVCI) | |
| CN103744811A (en) | Serial data transmission system and method | |
| CN104022828A (en) | Fiber data transmission method based on asynchronous communication mode | |
| CN104991880B (en) | A kind of FC AE ASM Communication Cards based on PCI E interfaces | |
| CN102546070A (en) | Method and system for synchronizing a network using existing network cables | |
| CN111475434A (en) | Multi-level data acquisition method based on network on chip | |
| CN105530154B (en) | 1553B and synchronous 485 communication protocol converter | |
| CN103124242B (en) | Method for transmitting signals | |
| CN202663428U (en) | Relay card and relay system | |
| CN116506524B (en) | Millimeter wave radar data acquisition card and data acquisition control method thereof | |
| CN103136146A (en) | Signal collection system and method | |
| CN105306421A (en) | PCI-E interface based signal processing method and PCI-E interface based signal processing device | |
| US7434084B1 (en) | Method and apparatus for eliminating sampling errors on a serial bus | |
| CN104639898A (en) | Multifunctional service transmission device based on Rapidio switching network | |
| CN113534888B (en) | FPGA-based time synchronization method and device for multiple VPX boards | |
| CN113806277B (en) | FPGA and DSP data transmission system based on SRIO protocol | |
| CN211956461U (en) | Serial data communication circuit and system | |
| CN201467170U (en) | Communication protocol converter capable of converting HART protocol to Profibus protocol | |
| CN107707558B (en) | Data transmission system of multi-industry bus | |
| CN107564265A (en) | The LXI data acquisition units and its method of work of a kind of high-speed transfer | |
| CN112311458B (en) | Signal transmission method, device, equipment and system | |
| CN218976690U (en) | Serial port-to-network port circuit | |
| CN112118084A (en) | Half-duplex differential bus isolation relay device and data line transmission system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |