CN103124197B - The transmission system of voltage mode analog signal in private network - Google Patents
The transmission system of voltage mode analog signal in private network Download PDFInfo
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- CN103124197B CN103124197B CN201110369924.5A CN201110369924A CN103124197B CN 103124197 B CN103124197 B CN 103124197B CN 201110369924 A CN201110369924 A CN 201110369924A CN 103124197 B CN103124197 B CN 103124197B
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Abstract
The invention provides the transmission system of voltage mode analog signal in a kind of private network.Described system, comprising: at least two trunk subsystems, and wherein at least two trunk subsystems are connected by optical networking, and each trunk subsystem comprises device port, the network port, the first modular converter and the second modular converter, wherein: device port; The network port; First modular converter, for when receiving voltage mode analog signal from device port, converts voltage mode analog signal to digital signal; And, after receiving digital signal from the second modular converter, convert digital signal to voltage mode analog signal, and sent by device port; Second modular converter, for after receiving digital signal from the first modular converter, is converted digital signal to light signal, and is sent by the network port; And, after receiving light signal from the network port, convert light signal to digital signal, and send digital signal to the first modular converter.
Description
Technical field
The present invention relates to computer application field, particularly relate to the transmission system of voltage mode analog signal in a kind of private network.
Background technology
Voltage mode analog signal to have a wide range of applications field as a kind of basic physical signalling.As voltage mode signals, its digitlization is analyzed by more use crowd, or uses as a control signal.Although even if the equipment such as access network switch so signal can transmit farther, data have not been real-time Transmission, neither can't harm to reduce, so voltage mode analog signal cannot carry out remote data communication in private network.
Summary of the invention
The invention provides a transmission path based on the voltage mode analog signal of optical fiber.First solve long-distance transmissions problem, secondly because we are for transmission channel has built a physical pathway, thus realize remote, signal is close to harmless real-time Transmission path.
For solving the problems of the technologies described above, the invention provides following technical scheme:
The transmission system of voltage mode analog signal in a kind of private network, comprise at least two trunk subsystems, wherein said at least two trunk subsystems are connected by optical networking, and each trunk subsystem comprises device port, the network port, the first modular converter and the second modular converter, wherein:
Described device port, is connected with equipment;
The described network port, is connected with described optical networking;
Described first modular converter, is connected with described second modular converter with described device port, for when receiving voltage mode analog signal from described device port, converts voltage mode analog signal to digital signal; And, after receiving digital signal from described second modular converter, convert described digital signal to voltage mode analog signal, and sent by device port;
Described second modular converter, is connected with the described network port with described first modular converter, for after receiving digital signal from described first modular converter, converts described digital signal to light signal, and is sent by the described network port; And, after receiving light signal from the described network port, convert described light signal to digital signal, and send digital signal to described first modular converter.
Preferably, described system also has following features: described system also comprises:
Path management subsystem, comprising:
Configuration module, for configuring the special bang path of light signal that the first equipment and the second equipment produces alternately;
Described optical networking also comprises routing subsystem, is connected, comprises with described path management subsystem:
Logging modle, is connected with described configuration module, for recording the bang path that between described first equipment and the second equipment, the mutual light signal produced is special;
Routing module, be connected with described logging modle, for only when the light signal received is the light signal of mutual generation between described first equipment and the second equipment, the bang path that between the first equipment and the second equipment, the mutual light signal produced is special is just used to transmit.
Preferably, described system also has following features:
Described path management subsystem, also comprises:
Modified module, is connected with described configuration module, after changing, revises the bang path that light signal mutual between described first equipment and the second equipment is special for the correspondence between described first equipment and the second equipment, obtains revising result;
Described routing subsystem, also comprises:
Update module, is connected with described logging modle with described modified module, for according to described amendment result, upgrades the bang path of described logging modle record.
Preferably, described system also has following features: described trunk subsystem also comprises:
Policing port, is connected with network monitoring center;
Transport module, for sending the voltage mode analog signal obtained, light signal or digital signal by described policing port.
Preferably, described system also has following features: described policing port only carries out the transmit operation of voltage mode analog signal, light signal or digital signal.
Preferably, described system also has following features: described trunk subsystem also comprises:
Multiple control port, each port is connected with a controlled device;
Sending module, is connected with described multiple control port, sends for sending to described controlled device the voltage mode analog signal, light signal or the digital signal that obtain by described multiple control port simultaneously.
Preferably, described system also has following features: described control port only carries out the transmit operation of light signal or digital signal.
Preferably, described system also has following features: described trunk subsystem also comprises:
Clock module, for when the signal transmitting terminal of described trunk subsystem, controls described second modular converter identical with as the corresponding inversion frequency of object relay subsystem to light signal to the inversion frequency of digital signal; Or, when the signal receiving terminal of described trunk subsystem, control described second modular converter identical with as the corresponding inversion frequency of object relay subsystem to digital signal to the inversion frequency of light signal.
Preferably, described system also has following features: described private network is the private network based on the SDH (Synchronous Digital Hierarchy) (SDH) taking optical fiber as medium.
Compared with prior art, trunk subsystem improves transmission and the receive mode of signal, and by optical networking signal transmission, realizes local closely data relay and remote data relay.For in-plant data relay, relaying can realize the monitoring of data.Due to the transmission that this transmission system is physically based deformation layer, so be almost harmless to the transmission of voltage mode analog signal, so very little to line influence own, so in the proper communication of voltage mode analog signal data, and control between multiple equipment can carry how convenient realization condition with when safeguarding.Especially in testing of equipment operation, because our system almost can't harm, therefore can in the authenticity ensureing test result to a greater extent; The communication of remote voltage mode analog signal and the monitoring of voltage mode analog signal can certainly be realized.Transmission range can reach five kilometers.When being indifferent to time delay, farther transmission range can be accomplished.
Accompanying drawing explanation
Fig. 1 is the structural representation of the transmission system embodiment that the invention provides voltage mode analog signal in a kind of private network;
Fig. 2 is the structural representation of another embodiment of system shown in Figure 1 embodiment;
Fig. 3 is the structural representation of another embodiment of system shown in Figure 2 embodiment;
Fig. 4 is the another structural representation of system shown in Figure 1 embodiment;
Fig. 5 is a structural representation again of system shown in Figure 1 embodiment.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, the present invention is described in further detail below in conjunction with the accompanying drawings and the specific embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combination in any mutually.
It should be explicitly made clear at this point, hereafter said private network is the private network of the SDH (Synchronous Digital Hierarchy) (Synchronous Digital Hierarchy, SDH) being medium based on optical fiber.
Fig. 1 is the structural representation of the transmission system embodiment that the invention provides voltage mode analog signal in a kind of private network.System shown in Figure 1 at least two trunk subsystems, wherein said at least two trunk subsystems are connected by optical networking, and each trunk subsystem comprises device port 101, the network port 102, first modular converter 103 and the second modular converter 104, wherein:
Described device port 101, is connected with equipment;
The described network port 102, is connected with described optical networking;
Described first modular converter 103, is connected with described second modular converter with described device port, for when receiving voltage mode analog signal from described device port, converts voltage mode analog signal to digital signal; And, after receiving digital signal from described second modular converter, convert described digital signal to voltage mode analog signal, and sent by device port;
Described second modular converter 104, is connected with the described network port with described first modular converter, for after receiving digital signal from described first modular converter, converts described digital signal to light signal, and is sent by the described network port; And, after receiving light signal from the described network port, convert described light signal to digital signal, and send digital signal to described first modular converter.
Wherein, voltage mode analog signal to have a wide range of applications field as a kind of basic physical signalling, the temperature sensitive voltage such as often used in temperature control field, and the photoactive voltage etc. that the optical switch often used in daily life uses is all voltage mode signals.
In actual applications, if the first equipment is to the second equipment sending data, after the first trunk subsystem be connected with the first equipment receives digital signal by device port, convert digital signal to light signal, and by the network port, light signal is sent by optical networking, the second trunk subsystem be connected with the second equipment receives this light signal by network interface, can convert thereof into digital signal, and sends to the second equipment.In like manner, the second equipment is identical with above-mentioned flow process to the flow process of the first equipment sending data, repeats no more herein.
For example, the second modular converter can be AD conversion chip.Voltage mode signals on circuit is read by A/D chip, then by Flow Control, is sent after data transaction being become light signal after the operation such as Data Format Transform by optical fiber.During reception, by the data on optical fiber by the conversion of light signal to digital signal, and then by after digital signal to the conversion of voltage mode signals, signal is sent with the form of voltage mode signals.
With transmission system of the prior art unlike, the long-distance transmissions of voltage mode analog signal is realized by optical fiber, because the light velocity is speed the fastest in current the known world, so can be good at realizing the remote of voltage mode analog signal, the transfer of data of low delay.In addition, the present embodiment is the transfer of data of physically based deformation layer, does not resolve data, is just transmitted by the signal on network, and is indifferent to the data content of transmission, therefore, it is possible to realize close to harmless transmission.
Fig. 2 is another structural representation of system shown in Figure 1 embodiment.Only illustrate as lower part, the content of all the other and Fig. 1 intersection is omitted, and wherein also comprises in system shown in Figure 2 herein:
Path management subsystem, comprising:
Configuration module 201, for configuring the special bang path of light signal that the first equipment and the second equipment produces alternately;
Described optical networking also comprises routing subsystem, is connected, comprises with described path management subsystem:
Logging modle 202, is connected with described configuration module 201, for recording the bang path that between described first equipment and the second equipment, the mutual light signal produced is special;
Routing module 203, be connected with described logging modle 202, for only when the light signal received is the light signal of mutual generation between described first equipment and the second equipment, the bang path that between the first equipment and the second equipment, the mutual light signal produced is special is just used to transmit.
The light signal that wherein the first equipment and the second equipment produce alternately comprises at least one in the light signal that light signal that the first equipment produces to the second equipment sending data and the second equipment produces to the first equipment sending data.
It should be noted that, bang path is herein not the bang path based on address route in prior art, but by the light signal between the first equipment and the second equipment in optical networking the port information of process, and this paths uses the netting twine be equivalent in prior art between two equipment when being only limited to the first equipment and this two devices communicatings of the second equipment, this bang path is referred to as " virtual netting twine " herein.Transfer resource on this virtual netting twine due to not use by the Signal transmissions of other equipment, only by the first equipment and the second equipment use, two equipment that reach monopolize the object of a transmission lines resource, further ensure the real-time transmission of signal.
For time interconnected between the multiple stage network equipment, under original network design condition, by configuring one for connecting the Port Connection Information of two equipment in routing subsystem, an exclusive transmission path between any two equipment of any two equipment just can be made.
Because the mode of transfer resource exclusive between equipment is realized by path management subsystem configuration, be not be between two equipment, set up an actual physical circuit, so when the correspondence between two equipment changes, only can be needed to regenerate corresponding bang path by path management subsystem, realize simple, be described as follows:
Fig. 3 is another structural representation of system shown in Figure 2 embodiment.In system shown in Figure 3:
Described path management subsystem, also comprises:
Modified module 301, be connected with described configuration module 201, after changing for the correspondence between described first equipment and the second equipment, revise the bang path that light signal mutual between described first equipment and the second equipment is special, obtain revising result;
Described routing subsystem, also comprises:
Update module 302, is connected with described logging modle with described modified module, for according to described amendment result, upgrades the bang path of described logging modle record.
As seen from the above, when changing communication mode between equipment, only need configure the conversion that corresponding transmission path just can meet communication between devices relation adaptively, instead of change physical connection circuit.
Fig. 4 is the another structural representation of system shown in Figure 1 embodiment.System shown in Figure 4 embodiment also comprises:
Policing port 401, is connected with network monitoring center;
Transport module 402, for sending the voltage mode analog signal obtained, light signal or digital signal by described policing port.
Wherein said transport module can be connected with device port, also can be connected with the first modular converter, can also be connected with the network port, and certainly, the signal sent can be voltage mode analog signal, digital signal, also can be light signal.
Because described policing port and device port and the network port are not all same physical ports, so the light signal that sends of transport module or digital signal can not affect the transfer of data between equipment, the conflict of data between equipment can not be caused, ensure the proper communication between two equipment.
In order to avoid network monitoring center causes proper communication between equipment by policing port feedback data, described policing port only carries out the transmit operation of voltage mode analog signal, light signal or digital signal.
As seen from the above, by the transfer of data that will circuit obtain to another one port, under the prerequisite of normal communication between guarantee equipment, an another one or multiple port these data is sent to realize data monitoring.Only data transmit operation is carried out for policing port, does not receive the data of this port, thus solve the conflict of transfer of data.Due to the monitoring that data monitoring is also physically based deformation layer, be indifferent to data content, thus the signal transmission of the network interface just will monitored to one or more device port of specifying to realize data monitoring.
Optionally, described trunk subsystem also comprises:
Multiple control port, each port is connected with a controlled device;
Sending module, is connected with described multiple control port, sends for sending to described controlled device the voltage mode analog signal, light signal or the digital signal that obtain by described multiple control port simultaneously.
Wherein, described control port only carries out the transmit operation of light signal or digital signal.
As seen from the above, relay system is while transmission signal, also support the transmission of more than a pair port, if this voltage mode signals is as control signal, the voltage mode signals of this port is delivered to multiple different port simultaneously simultaneously, can realize an equipment and control multiple devices simultaneously, and the signal that local device spreads out of also can not be influenced.
For the transfer of data of voltage mode signals serial transmission line, in order to the signal produced mutual between guarantee equipment at the uniform velocity can transmit in optical networking.The invention provides following scheme, comprising:
Clock module, for when the signal transmitting terminal of described trunk subsystem, controls described second modular converter identical with as the corresponding inversion frequency of object relay subsystem to light signal to the inversion frequency of digital signal; Or, when the signal receiving terminal of described trunk subsystem, control described second modular converter identical with as the corresponding inversion frequency of object relay subsystem to digital signal to the inversion frequency of light signal.
If the first trunk subsystem is to the second trunk subsystem transmission data, the frequency that second modular converter conversion digital signal in first trunk subsystem becomes light signal is called sample frequency, the frequency second trunk subsystem transmitting photo-signal in second trunk subsystem being become digital signal is called goes back primary frequency, the signal sampling clock that uses of system and signals revivification clock are same frequencies in the present invention, so can ensure that our signal at the uniform velocity transmits.
In sum, by the improvement right to relay system, and by optical networking signal transmission, realize local closely data relay and remote data relay.For in-plant data relay, relaying can realize the monitoring of data.Due to the transmission that this transmission system is physically based deformation layer, so be almost harmless to the transmission of voltage mode analog signal, so very little to line influence own, so in the proper communication of voltage mode analog signal data, and control between multiple equipment can carry how convenient realization condition with when safeguarding.Especially in testing of equipment operation, because our system almost can't harm, therefore can in the authenticity ensureing test result to a greater extent; The communication of remote voltage mode analog signal and the monitoring of voltage mode analog signal can certainly be realized.Transmission range can reach five kilometers.When being indifferent to time delay, farther transmission range can be accomplished.
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.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly 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 (8)
1. the transmission system of voltage mode analog signal in a private network, it is characterized in that, comprise at least two trunk subsystems, wherein said at least two trunk subsystems are connected by optical networking, each trunk subsystem comprises device port, the network port, the first modular converter and the second modular converter, wherein:
Described device port, is connected with equipment;
The described network port, is connected with described optical networking;
Described first modular converter, is connected with described second modular converter with described device port, for when receiving voltage mode analog signal from described device port, converts voltage mode analog signal to digital signal; And, after receiving digital signal from described second modular converter, convert described digital signal to voltage mode analog signal, and sent by device port;
Described second modular converter, is connected with the described network port with described first modular converter, for after receiving digital signal from described first modular converter, converts described digital signal to light signal, and is sent by the described network port; And, after receiving light signal from the described network port, convert described light signal to digital signal, and send digital signal to described first modular converter;
Described transmission system also comprises:
Path management subsystem, comprising:
Configuration module, for configuring the special bang path of light signal that the first equipment and the second equipment produces alternately;
Described optical networking also comprises routing subsystem, is connected, comprises with described path management subsystem:
Logging modle, is connected with described configuration module, for recording the bang path that between described first equipment and the second equipment, the mutual light signal produced is special;
Routing module, be connected with described logging modle, for only when the light signal received is the light signal of mutual generation between described first equipment and the second equipment, the bang path that between the first equipment and the second equipment, the mutual light signal produced is special is just used to transmit.
2. transmission system according to claim 1, is characterized in that:
Described path management subsystem, also comprises:
Modified module, is connected with described configuration module, after changing, revises the bang path that light signal mutual between described first equipment and the second equipment is special for the correspondence between described first equipment and the second equipment, obtains revising result;
Described routing subsystem, also comprises:
Update module, is connected with described logging modle with described modified module, for according to described amendment result, upgrades the bang path of described logging modle record.
3. transmission system according to claim 1, is characterized in that, described trunk subsystem also comprises:
Policing port, is connected with network monitoring center;
Transport module, for sending the voltage mode analog signal obtained, light signal or digital signal by described policing port.
4. transmission system according to claim 3, is characterized in that, described policing port only carries out the transmit operation of voltage mode analog signal, light signal or digital signal.
5. transmission system according to claim 1, is characterized in that, described trunk subsystem also comprises:
Multiple control port, each port is connected with a controlled device;
Sending module, is connected with described multiple control port, sends for sending to described controlled device the voltage mode analog signal, light signal or the digital signal that obtain by described multiple control port simultaneously.
6. transmission system according to claim 5, is characterized in that, described control port only carries out the transmit operation of light signal or digital signal.
7. transmission system according to claim 1, is characterized in that, described trunk subsystem also comprises:
Clock module, for when the signal transmitting terminal of described trunk subsystem, controls described second modular converter identical with as the corresponding inversion frequency of object relay subsystem to light signal to the inversion frequency of digital signal; Or, when the signal receiving terminal of described trunk subsystem, control described second modular converter identical with as the corresponding inversion frequency of object relay subsystem to digital signal to the inversion frequency of light signal.
8., according to the arbitrary described transmission system of claim 1 to 7, it is characterized in that, described private network is the private network based on the SDH (Synchronous Digital Hierarchy) SDH taking optical fiber as medium.
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| CN201110369924.5A CN103124197B (en) | 2011-11-18 | 2011-11-18 | The transmission system of voltage mode analog signal in private network |
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| CN201110369924.5A CN103124197B (en) | 2011-11-18 | 2011-11-18 | The transmission system of voltage mode analog signal in private network |
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| CN103124197B true CN103124197B (en) | 2015-08-19 |
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| US7050718B2 (en) * | 2001-07-26 | 2006-05-23 | Victor John Rychlicki | Method of establishing communications in an all optical wavelength division multiplexed network |
| US20040102874A1 (en) * | 2002-11-27 | 2004-05-27 | Crosby Philip S. | Method and apparatus for controlling an optical transponder |
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| JP2004201119A (en) * | 2002-12-19 | 2004-07-15 | Mitsubishi Electric Corp | Device, method and program for relay transmission |
| WO2004088929A1 (en) * | 2003-03-28 | 2004-10-14 | Fujitsu Limited | End office repeater, repeating method |
| JP2004328173A (en) * | 2003-04-23 | 2004-11-18 | Nec Corp | Network, repeating installation, and path management method used therefor |
| CN101938307A (en) * | 2010-08-24 | 2011-01-05 | 耿直 | Digital relay transmission method and multi-channel digital fiber optic repeater |
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