CN202551038U - Transmission system of resistive type analog signal in private network - Google Patents
Transmission system of resistive type analog signal in private network Download PDFInfo
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- CN202551038U CN202551038U CN 201120461664 CN201120461664U CN202551038U CN 202551038 U CN202551038 U CN 202551038U CN 201120461664 CN201120461664 CN 201120461664 CN 201120461664 U CN201120461664 U CN 201120461664U CN 202551038 U CN202551038 U CN 202551038U
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Abstract
The utility model provides a transmission system of a resistive type analog signal in a private network. The system comprises at least two relay sub-systems which are mutually connected via a fiber net. Each relay sub-system comprises: a device port connected with a device; a network port connected with the fiber net; a monitoring port connected with a network monitoring center; an analog-digital converter which is connected with the device port and is used for converting a resistive type analog signal into a digital signal when the resistive type analog signal is received from the device port; a digital-analog converter which is connected with a network device and the analog-digital converter, and is used for converting the digital signal into the resistive type analog signal and sending out the resistive type analog signal via the device port when the digital signal is received from the analog-digital converter.
Description
Technical field
The utility model relates to computer application field, relates in particular to the transmission system of resistor-type analog signal in a kind of private network.
Background technology
The resistor-type analog signal is as a kind of basic physical signal field that has a wide range of applications.As the resistor-type signal, more the use crowd analyzes its digitlization, perhaps uses as a control signal.Though even equipment such as access network switch so signal can transmit farther, data have not been real-time Transmission, neither can't harm to have reduced, so the resistor-type analog signal can't be carried out remote data communication in private network.
The utility model content
The utility model provides a transmission path based on the resistor-type analog signal of optical fiber.At first solved the long-distance transmissions problem,, thereby realized that at a distance, signal is near harmless real-time Transmission path secondly because we have built a physical pathway for transmission channel.
For solving the problems of the technologies described above, the utility model provides following technical scheme:
The transmission system of resistor-type analog signal in a kind of private network comprises at least two trunk subsystems, and wherein said at least two trunk subsystems link to each other through optical networking, and each trunk subsystem comprises:
Device port links to each other with equipment;
The network port links to each other with said optical networking;
Policing port links to each other with network monitoring center;
Analogue-to-digital converters link to each other with said device port, when receiving the resistor-type analog signal from said device port, the resistor-type analog signal conversion are become digital signal;
Digital-analog convertor links to each other with said analogue-to-digital converters with the said network equipment, after receiving digital signal from said analogue-to-digital converters, converts said digital signal to the resistor-type analog signal, and sends through device port;
Electrical to optical converter links to each other with the said network port with said analogue-to-digital converters, after receiving digital signal from said analogue-to-digital converters, converts said digital signal to light signal, and sends through the said network port;
Optical-electrical converter, linking to each other with said digital-analog convertor links to each other with the said network port, when when the said network port receives light signal, converts said light signal to digital signal, and sends said digital signal to said digital-analog convertor;
Clock circuit, when the signal transmitting terminal of said trunk subsystem, control said electrical to optical converter to the inversion frequency of digital signal with identical to the inversion frequency of light signal as optical-electrical converter in the corresponding target trunk subsystem; Perhaps, when the signal receiving terminal of said trunk subsystem, control said optical-electrical converter to the inversion frequency of light signal with identical to the inversion frequency of digital signal as electrical to optical converter in the corresponding target trunk subsystem;
First signal projector sends the resistor-type analog signal, light signal or the digital signal that obtain through said policing port.
Preferably, said system also has following characteristics: said policing port only carries out the transmit operation of resistor-type analog signal, light signal or digital signal.
Preferably, said system also has following characteristics: said system also comprises:
Path management subsystem comprises:
Second processor, dispose the mutual light signal that produces of first equipment and second equipment special-purpose bang path;
Said optical networking also comprises routing subsystem, links to each other with said path management subsystem, comprising:
Memory links to each other with said second processor, store between said first equipment and second equipment mutual light signal that produces special-purpose bang path;
Router; Link to each other with the said network port with said memory; Only when the light signal that receives be between said first equipment and second equipment during mutual light signal that produces, just use mutual generation between first equipment and second equipment light signal special-purpose bang path transmit.
Preferably, said system also has following characteristics:
Said path management subsystem also comprises:
The 3rd processor links to each other with said second processor, after the correspondence between said first equipment and second equipment changes, revise light signal mutual between said first equipment and second equipment special-purpose bang path, obtain revising the result;
Said routing subsystem also comprises:
Four-processor links to each other with said memory with said the 3rd processor, according to said modification result, upgrades the bang path of said memory record.
Preferably, said system also has following characteristics: said trunk subsystem also comprises:
A plurality of control ports, each port links to each other with a controlled device;
The secondary signal reflector links to each other with said a plurality of control ports, sends the resistor-type analog signal, light signal or the digital signal that obtain to said controlled device simultaneously through said a plurality of control ports and sends.
Preferably, said system also has following characteristics: said control port only carries out the transmit operation of resistor-type analog signal, light signal or digital signal.
Preferably, said system also has following characteristics: said private network is for being the private network of the SDH (SDH) of medium with optical fiber.
Compared with prior art, trunk subsystem has improved the transmission and the receive mode of signal, and through the optical networking transmission signals, realizes local closely data relaying and remote data relaying.For in-plant data relaying, relaying can be realized the monitoring of data.Because this transmission system is based on the transmission of physical layer; So the transmission to the resistor-type analog signal almost can't harm; So it is very little to line influence own; So in the proper communication of resistor-type analog signal data, and control can be carried how convenient realization condition when safeguarding between a plurality of equipment.Especially in testing of equipment operation, because our system is almost harmless, therefore can be in the authenticity that guarantees test result to a greater extent; Can certainly realize the communication of remote resistor-type analog signal and the monitoring of resistor-type analog signal.Transmission range can reach five kilometers.Being indifferent under the situation of time-delay, can accomplish farther transmission range.
Description of drawings
Fig. 1 provides the structural representation of the transmission system embodiment of resistor-type analog signal in a kind of private network for the utility model;
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.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer, will combine accompanying drawing and specific embodiment that the utility model is done further to describe in detail below.Need to prove that under the situation of not conflicting, embodiment among the application and the characteristic among the embodiment be combination in any each other.
It should be explicitly made clear at this point that the said private network of hereinafter is that employing is SDH (Synchronous Digital Hierarchy, private network SDH) of medium with optical fiber.
Fig. 1 provides the structural representation of the transmission system embodiment of resistor-type analog signal in a kind of private network for the utility model.At least two trunk subsystems of system shown in Figure 1, wherein said at least two trunk subsystems link to each other through optical networking, and each trunk subsystem comprises:
The network port 102 links to each other with said optical networking;
Analogue-to-digital converters 104 link to each other with said device port, when receiving the resistor-type analog signal from said device port, the resistor-type analog signal conversion are become digital signal;
Digital-analog convertor 105 links to each other with said analogue-to-digital converters with the said network equipment, after receiving digital signal from said analogue-to-digital converters, converts said digital signal to the resistor-type analog signal, and sends through device port;
Electrical to optical converter 105 links to each other with the said network port with said analogue-to-digital converters, after receiving digital signal from said analogue-to-digital converters, converts said digital signal to light signal, and sends through the said network port;
Optical-electrical converter 106, linking to each other with said digital-analog convertor links to each other with the said network port, when when the said network port receives light signal, converts said light signal to digital signal, and sends said digital signal to said digital-analog convertor;
In practical application; If first equipment is to second equipment sending data, first trunk subsystem that links to each other with first equipment converts digital signal to light signal after receiving digital signal through device port; And light signal is sent through optical networking through the network port; Second trunk subsystem that links to each other with second equipment is received this light signal through network interface, can convert thereof into digital signal, and sends to second equipment.In like manner, second equipment is identical with above-mentioned flow process to the flow process of first equipment sending data, repeats no more here.
Different with transmission system of the prior art is; Realize the long-distance transmissions of resistor-type analog signal through optical fiber; Because the light velocity is the fastest speed in the present the known world, so can be good at realizing the remote of resistor-type analog signal, the transfer of data of low delay.In addition, present embodiment is based on the transfer of data of physical layer, data is not resolved, and just the signal on the network is transmitted, and is indifferent to the data content of transmission, therefore can realize near harmless transmission.
For clock circuit; In practical application; User only configuration adjusts frequency as the trunk subsystem of signal sending end, and also only configuration is adjusted frequency as the trunk subsystem of signal receiving end, certainly; Can also both can both regulate each other, thus above-mentioned clock circuit can with electrical to optical converter and optical-electrical converter at least one links to each other.
Wherein said first signal projector can link to each other with device port, also can link to each other with analogue-to-digital converters, can also link to each other with the network port, and certainly, the signal that is sent can be resistor-type analog signal, digital signal, also can be light signal.
Because said policing port and device port and the network port all are not same physical ports; So light signal or digital signal that first signal projector is sent can not influence data transfer between devices; Can not cause the conflict of data between the equipment, guarantee the proper communication between two equipment.
Cause the proper communication between the equipment for fear of network monitoring center through the policing port feedback data, said policing port only carries out the transmit operation of resistor-type analog signal, light signal or digital signal.
By on can find out, through with the transfer of data that obtains on the circuit to the another one port, under the prerequisite of normal communication between the assurance equipment, send an another one or a plurality of ports to realize data monitoring these data.Only carry out the data transmit operation for policing port, do not receive the data of this port, thereby solve the conflict of transfer of data.Because data monitoring also is based on the monitoring of physical layer, is indifferent to data content, so the signal of the network interface that just will monitor is delivered to one or more device port of appointment to realize data monitoring.
For the transfer of data of resistor-type train of signal row line, come the signal of mutual generation between the assurance equipment in optical networking, at the uniform velocity to transmit through clock circuit.Transmit data like first trunk subsystem to second trunk subsystem for instance; The frequency that analogue-to-digital converters conversion digital signal in first trunk subsystem is become light signal is called sample frequency; The frequency that the second trunk subsystem transmitting photo-signal in second trunk subsystem is become digital signal is called goes back primary frequency; Employed signal sampling clock of system and signal reduction clock is same frequency in the utility model, at the uniform velocity transmits so can guarantee our signal.
Optional, said trunk subsystem also comprises:
A plurality of control ports, each port links to each other with a controlled device;
The secondary signal reflector links to each other with said a plurality of control ports, sends the resistor-type analog signal, light signal or the digital signal that obtain to said controlled device simultaneously through said a plurality of control ports and sends.
Wherein, said control port only carries out the transmit operation of resistor-type analog signal, light signal or digital signal.
By on can find out; Relay system is when sending signal; Also support the transmission of a pair of a plurality of ports, if this resistor-type signal as control signal, the resistor-type signal with this port is delivered to a plurality of different ports simultaneously simultaneously; Can realize that an equipment controls multiple devices simultaneously, and the signal that local device spreads out of can be not influenced yet.
Fig. 2 is another structural representation of system shown in Figure 1 embodiment.Only illustrate like the lower part, the content of all the other and Fig. 1 intersection is omitted, and wherein also comprises in the system shown in Figure 2 here:
Path management subsystem comprises:
Said optical networking also comprises routing subsystem, links to each other with said path management subsystem, comprising:
Router two 03; Link to each other with the said network port with said memory; Only when the light signal that receives be between said first equipment and second equipment during mutual light signal that produces, just use mutual generation between first equipment and second equipment light signal special-purpose bang path transmit.
Wherein the mutual light signal that produces of first equipment and second equipment comprises light signal and at least one in the light signal that first equipment sending data is produced of second equipment that first equipment is produced to second equipment sending data.
Need to prove; The bang path here is not based on the bang path of address route in the prior art; But by the light signal between first equipment and second equipment in optical networking the port information of process; And this paths is to use when being only limited to first equipment and these two devices communicatings of second equipment to be equivalent to a netting twine between two equipment in the prior art, this bang path is referred to as " virtual netting twine " here.Transfer resource on this virtual netting twine only uses by first equipment and second equipment owing to do not used by the signal of other equipment transmission, and two equipment that reached are monopolized the purpose of a transmission lines resource, have further guaranteed the real-time of signal transmission.
To between many network equipments when interconnected, under original network design condition,, just can make between any two equipment of any two equipment and monopolize a transmission path through port link information that is used to connect two equipment of configuration in routing subsystem.
Because monopolizing the mode of transfer resource between the equipment realizes through the path management subsystem configuration; Be not to be to set up an actual physical circuit between two equipment; So when the correspondence between two equipment changes; Can only need regenerate corresponding bang path by path management subsystem and get final product, realize simply specifying as follows:
Fig. 3 is another structural representation of system shown in Figure 2 embodiment.In system shown in Figure 3:
Said path management subsystem also comprises:
The 3rd processor 301 links to each other with said second processor, after the correspondence between said first equipment and second equipment changes, revise light signal mutual between said first equipment and second equipment special-purpose bang path, obtain revising the result;
Said routing subsystem also comprises:
Four-processor 302 links to each other with said memory with said the 3rd processor, according to said modification result, upgrades the bang path of said memory record.
By on can find out, when changing communication mode between the equipment, only need the corresponding transmission path of configuration just can satisfy the conversion of communication between devices relation rather than replacing physical connection circuit adaptively.
In sum, through the improvement right, and, realize local closely data relaying and remote data relaying through the optical networking transmission signals to relay system.For in-plant data relaying, relaying can be realized the monitoring of data.Because this transmission system is based on the transmission of physical layer; So the transmission to the resistor-type analog signal almost can't harm; So it is very little to line influence own; So in the proper communication of resistor-type analog signal data, and control can be carried how convenient realization condition when safeguarding between a plurality of equipment.Especially in testing of equipment operation, because our system is almost harmless, therefore can be in the authenticity that guarantees test result to a greater extent; Can certainly realize the communication of remote resistor-type analog signal and the monitoring of resistor-type analog signal.Transmission range can reach five kilometers.Being indifferent under the situation of time-delay, can accomplish farther transmission range.
The above; Be merely the embodiment of the utility model; But the protection range of the utility model is not limited thereto; Any technical staff who is familiar with the present technique field can expect changing or replacement in the technical scope that the utility model discloses easily, all should be encompassed within the protection range of the utility model.Therefore, the protection range of the utility model should be as the criterion with the described protection range of claim.
Claims (5)
1. the transmission system of resistor-type analog signal in the private network is characterized in that, comprises at least two trunk subsystems, and wherein said at least two trunk subsystems link to each other through optical networking, and each trunk subsystem comprises:
Device port links to each other with equipment;
The network port links to each other with said optical networking;
Policing port links to each other with network monitoring center;
Analogue-to-digital converters link to each other with said device port, when receiving the resistor-type analog signal from said device port, the resistor-type analog signal conversion are become digital signal;
Digital-analog convertor links to each other with said analogue-to-digital converters with the said network equipment, after receiving digital signal from said analogue-to-digital converters, converts said digital signal to the resistor-type analog signal, and sends through device port;
Electrical to optical converter links to each other with the said network port with said analogue-to-digital converters, after receiving digital signal from said analogue-to-digital converters, converts said digital signal to light signal, and sends through the said network port;
Optical-electrical converter, linking to each other with said digital-analog convertor links to each other with the said network port, when when the said network port receives light signal, converts said light signal to digital signal, and sends said digital signal to said digital-analog convertor;
Clock circuit, when the signal transmitting terminal of said trunk subsystem, control said electrical to optical converter to the inversion frequency of digital signal with identical to the inversion frequency of light signal as optical-electrical converter in the corresponding target trunk subsystem; Perhaps, when the signal receiving terminal of said trunk subsystem, control said optical-electrical converter to the inversion frequency of light signal with identical to the inversion frequency of digital signal as electrical to optical converter in the corresponding target trunk subsystem;
First signal projector sends the resistor-type analog signal, light signal or the digital signal that obtain through said policing port.
2. system according to claim 1 is characterized in that, said system also comprises:
Path management subsystem comprises:
Second processor, dispose the mutual light signal that produces of first equipment and second equipment special-purpose bang path;
Said optical networking also comprises routing subsystem, links to each other with said path management subsystem, comprising:
Memory links to each other with said second processor, store between said first equipment and second equipment mutual light signal that produces special-purpose bang path;
Router; Link to each other with the said network port with said memory; Only when the light signal that receives be between said first equipment and second equipment during mutual light signal that produces, just use mutual generation between first equipment and second equipment light signal special-purpose bang path transmit.
3. system according to claim 2 is characterized in that:
Said path management subsystem also comprises:
The 3rd processor links to each other with said second processor, after the correspondence between said first equipment and second equipment changes, revise light signal mutual between said first equipment and second equipment special-purpose bang path, obtain revising the result;
Said routing subsystem also comprises:
Four-processor links to each other with said memory with said the 3rd processor, according to said modification result, upgrades the bang path of said memory record.
4. system according to claim 1 is characterized in that, said trunk subsystem also comprises:
A plurality of control ports, each port links to each other with a controlled device;
The secondary signal reflector links to each other with said a plurality of control ports, sends the resistor-type analog signal, light signal or the digital signal that obtain to said controlled device simultaneously through said a plurality of control ports and sends.
5. according to the arbitrary described system of claim 1 to 4, it is characterized in that said private network is for being the private network of the SDH SDH of medium with optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120461664 CN202551038U (en) | 2011-11-18 | 2011-11-18 | Transmission system of resistive type analog signal in private network |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120461664 CN202551038U (en) | 2011-11-18 | 2011-11-18 | Transmission system of resistive type analog signal in private network |
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| Publication Number | Publication Date |
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| CN202551038U true CN202551038U (en) | 2012-11-21 |
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| CN 201120461664 Expired - Lifetime CN202551038U (en) | 2011-11-18 | 2011-11-18 | Transmission system of resistive type analog signal in private network |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113938202A (en) * | 2021-09-28 | 2022-01-14 | 苏州英威腾电力电子有限公司 | Optical fiber communication method and optical fiber communication system |
-
2011
- 2011-11-18 CN CN 201120461664 patent/CN202551038U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113938202A (en) * | 2021-09-28 | 2022-01-14 | 苏州英威腾电力电子有限公司 | Optical fiber communication method and optical fiber communication system |
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| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |