CN103124196A - Transmission system of resistive analog signal in private network - Google Patents
Transmission system of resistive analog signal in private network Download PDFInfo
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- CN103124196A CN103124196A CN2011103669428A CN201110366942A CN103124196A CN 103124196 A CN103124196 A CN 103124196A CN 2011103669428 A CN2011103669428 A CN 2011103669428A CN 201110366942 A CN201110366942 A CN 201110366942A CN 103124196 A CN103124196 A CN 103124196A
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Abstract
The invention provides a transmission system of resistive analog signals in a private network. The transmission system comprises at least two relay subsystems, wherein at least two relay subsystems are connected by an optical network. The relay subsystem comprises a device port, a network port, a first conversion module and a second conversion module, wherein the first conversion module are used to convert the resistive analog signals into digital signals after the resistive analog signals are received by the device port and convert the digital signals into the resistive analog signals after the digital signals are received by the second conversion module and the resistive analog signals are sent out by the device port. The second conversion module is used to convert the digital signals into optical signals after the digital signals are received by the first conversion module and the optical signals are sent out by the network port and convert the optical signals into the digital signals after the optical signals are received by the network port and send the digital signals to the first conversion module.
Description
Technical field
The present invention relates to computer application field, relate 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 signalling 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.Although even the 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.
Summary of the invention
The invention provides one based on the transmission path of the resistor-type analog signal of optical fiber.At first solved the long-distance transmissions problem, secondly because we have built a physical pathway for transmission channel, thereby realized that at a distance, signal approaches harmless real-time Transmission path.
For solving the problems of the technologies described above, the invention provides following technical scheme:
The transmission system of resistor-type 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 the first modular converter is connected with described the second modular converter with described device port, is used for when receiving the resistor-type analog signal from described device port, the resistor-type analog signal conversion being become digital signal; And, after receiving digital signal from described the second modular converter, convert described digital signal to the resistor-type analog signal, and send by device port;
Described the second modular converter is connected with the described network port with described the first modular converter, is used for converting described digital signal to light signal, and sending by the described network port after receiving digital signal from described the first modular converter; And, after receiving light signal from the described network port, convert described light signal to digital signal, and send digital signal to described the first modular converter.
Preferably, described system also has following features: described system also comprises:
Path management subsystem comprises:
Configuration module is used for the mutual special-purpose bang path of light signal that produces of configuration the first equipment and the second equipment;
Described optical networking also comprises routing subsystem, is connected with described path management subsystem, comprising:
Logging modle is connected with described configuration module, is used for recording the mutual special-purpose bang path of light signal that produces between described the first equipment and the second equipment;
Routing module, be connected with described logging modle, only be used for when the light signal that receives be between described the first equipment and the second equipment during the mutual light signal that produces, just using between the first equipment and the second equipment alternately, the special-purpose bang path of light signal of generation transmits.
Preferably, described system also has following features:
Described path management subsystem also comprises:
Modified module is connected with described configuration module, is used for revising the special-purpose bang path of light signal mutual between described the first equipment and the second equipment after the correspondence between described the first equipment and the second equipment changes, and obtains revising result;
Described routing subsystem also comprises:
Update module is connected with described logging modle with described modified module, is used for according to described modification 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 is used for by described policing port, resistor-type analog signal, light signal or the digital signal that obtains being sent.
Preferably, described system also has following features: described policing port only carries out the transmit operation of resistor-type analog signal, light signal or digital signal.
Preferably, described system also has following features: described trunk subsystem also comprises:
A plurality of control ports, each port is connected with a controlled device;
Sending module is connected with described a plurality of control ports, is used for sending to described controlled device the resistor-type analog signal, light signal or the digital signal that obtain simultaneously by described a plurality of control ports and sends.
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 is used for when the signal transmitting terminal of described trunk subsystem, controls described the second modular converter identical to the inversion frequency of light signal to target trunk subsystem corresponding to the inversion frequency of digital signal and conduct; Perhaps, when the signal receiving terminal of described trunk subsystem, control described the second modular converter to the inversion frequency of light signal with identical to the inversion frequency of digital signal as corresponding target trunk subsystem.
Preferably, described system also has following features: described private network is the private network based on the SDH (Synchronous Digital Hierarchy) take optical fiber as medium (SDH).
Compared with prior art, trunk subsystem has improved the sending and receiving mode of signal, and by the optical networking signal transmission, realizes local closely data relay and remote data relay.For in-plant data relay, relaying can be realized the monitoring of data.Be based on the transmission of physical layer due to this transmission system, so the transmission to the resistor-type analog signal almost can't harm, so very little to line influence own, so in the proper communication of resistor-type analog signal data, and control between a plurality of equipment and can carry how convenient realization condition when safeguarding.Especially in testing of equipment operation, because our system almost can't harm, therefore can be in the authenticity that guarantees to a greater extent test result; 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.In the situation that be indifferent to time-delay, can accomplish farther transmission range.
Description of drawings
Fig. 1 is the structural representation that the invention provides the transmission system embodiment of resistor-type 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 the structural representation again of system shown in Figure 1 embodiment.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with the accompanying drawings and the specific embodiments.Need to prove, in the situation that do not conflict, the embodiment in the application and the feature in embodiment be combination in any mutually.
It should be explicitly made clear at this point, hereinafter said private network is based on the private network of the SDH (Synchronous Digital Hierarchy) that optical fiber is medium (Synchronous Digital Hierarchy, SDH).
Fig. 1 is the structural representation that the invention provides the transmission system embodiment of resistor-type analog signal in a kind of private network.At least two trunk subsystems of system shown in Figure 1, wherein said at least two trunk subsystems are connected by optical networking, and each trunk subsystem comprises device port 101, the network port 102, the 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 the first modular converter 103 is connected with described the second modular converter with described device port, is used for when receiving the resistor-type analog signal from described device port, the resistor-type analog signal conversion being become digital signal; And, after receiving digital signal from described the second modular converter, convert described digital signal to the resistor-type analog signal, and send by device port;
Described the second modular converter 104 is connected with the described network port with described the first modular converter, is used for converting described digital signal to light signal, and sending by the described network port after receiving digital signal from described the first modular converter; And, after receiving light signal from the described network port, convert described light signal to digital signal, and send digital signal to described the first modular converter.
Wherein, the resistor-type analog signal is as a kind of basic physical signalling field that has a wide range of applications, and such as the thermo-sensitive resistor that often uses in the temperature control field, the photo resistance that the optical switch that often uses in daily life uses etc. is all the resistor-type signal.
In actual applications, if the first equipment is to the second equipment sending data, after the first trunk subsystem that is 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 that is connected with the second equipment is received 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 instance, the second modular converter can be the AD conversion chip.Resistor-type signal on circuit reads by the AD chip, then by Flow Control, sends by optical fiber after after the operations such as Data Format Transform, data transaction being become light signal.During reception, the data on optical fiber are arrived the conversion of digital signal by light signal, and then arrive the conversion of resistor-type signal by digital signal after, the form of signal with the resistor-type signal sent.
Different from transmission system of the prior art is, realize the long-distance transmissions of resistor-type analog signal by optical fiber, because the light velocity is the fastest speed in 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, the present embodiment is based on the transfer of data of physical layer, data is not resolved, and just the signal on network is transmitted, and is indifferent to the data content of transmission, therefore can realize approaching harmless transmission.
Fig. 2 is another structural representation of system shown in Figure 1 embodiment.Following part only is shown herein, and the content of all the other and Fig. 1 intersection is omitted, and wherein also comprises in system shown in Figure 2:
Path management subsystem comprises:
Described optical networking also comprises routing subsystem, is connected with described path management subsystem, comprising:
Wherein the mutual light signal that produces of the first equipment and the second equipment 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.
Need to prove, bang path herein is not based on the bang path of 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 is to use when being only limited to the first equipment and this two devices communicatings of the second equipment to be equivalent to a netting twine between two equipment in prior art, this bang path is referred to as " virtual netting twine " herein.Transfer resource on this virtual netting twine is only used by the first equipment and the second equipment owing to 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 transmission of signal.
When interconnected between many network equipments, under original network design condition, by port link information that is used for connecting two equipment of configuration in routing subsystem, just can make between any two equipment of any two equipment and monopolize a transmission path.
Due to the mode of monopolizing transfer resource between equipment by the path management subsystem Configuration, be not to be to set up the physical circuit of a reality between two equipment, so when the correspondence between two equipment changes, can only need to regenerate corresponding bang path by path management subsystem gets final product, realize simply being 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:
Described routing subsystem also comprises:
As seen from the above, when changing communication mode between equipment, only need the corresponding transmission path of configuration just can satisfy adaptively the conversion of communication between devices relation, rather than change the 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;
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 that sends can be resistor-type analog signal, digital signal, can be also light signal.
Because described policing port and device port and the network port are not all same physical ports, so the light signal that transport module sends or digital signal can not affect the transfer of data between equipment, can not cause the conflict of data between equipment, guarantee the proper communication between two equipment.
Cause proper communication between equipment for fear of network monitoring center by the policing port feedback data, described policing port only carries out the transmit operation of resistor-type analog signal, light signal or digital signal.
As seen from the above, to the another one port, under the prerequisite of normal communication between assurance equipment, send an another one or a plurality of port to realize data monitoring these data by the transfer of data that will obtain on circuit.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.Also be based on the monitoring of physical layer due to data monitoring, be 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.
Optionally, described trunk subsystem also comprises:
A plurality of control ports, each port is connected with a controlled device;
Sending module is connected with described a plurality of control ports, is used for sending to described controlled device the resistor-type analog signal, light signal or the digital signal that obtain simultaneously by described a plurality of control ports and sends.
Wherein, described control port only carries out the transmit operation of light signal or digital signal.
As seen from the above, relay system is in transmitted signal, also support the transmission of a pair of a plurality of ports, if this resistor-type signal is as control signal, 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.
For the transfer of data of resistor-type signal serial transmission line, for the mutual signal that produces between assurance equipment can at the uniform velocity transmission in optical networking.The invention provides following scheme, comprising:
Clock module is used for when the signal transmitting terminal of described trunk subsystem, controls described the second modular converter identical to the inversion frequency of light signal to target trunk subsystem corresponding to the inversion frequency of digital signal and conduct; Perhaps, when the signal receiving terminal of described trunk subsystem, control described the second modular converter to the inversion frequency of light signal with identical to the inversion frequency of digital signal as corresponding target trunk subsystem.
As the first trunk subsystem to the second trunk subsystem the transmission of data, the frequency that the second modular converter conversion digital signal in the first trunk subsystem is become light signal is called sample frequency, the frequency that the second trunk subsystem transmitting photo-signal in the second trunk subsystem is become digital signal is called goes back primary frequency, the clock of the signal sampling clock that uses of system and signal reduction in the present invention is same frequency, so can guarantee that our signal at the uniform velocity transmits.
In sum, by the improvement right to relay system, and by the optical networking signal transmission, realize local closely data relay and remote data relay.For in-plant data relay, relaying can be realized the monitoring of data.Be based on the transmission of physical layer due to this transmission system, so the transmission to the resistor-type analog signal almost can't harm, so very little to line influence own, so in the proper communication of resistor-type analog signal data, and control between a plurality of equipment and can carry how convenient realization condition when safeguarding.Especially in testing of equipment operation, because our system almost can't harm, therefore can be in the authenticity that guarantees to a greater extent test result; 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.In the situation that be indifferent to time-delay, can accomplish farther transmission range.
The all or part of step that one of ordinary skill in the art will appreciate that above-described embodiment can realize with the computer program flow process, described computer program can be stored in a computer-readable recording medium, described computer program (as system, unit, device etc.) on corresponding hardware platform is carried out, when carrying out, comprise step of embodiment of the method one or a combination set of.
Alternatively, all or part of step of above-described embodiment also can realize with integrated circuit, and these steps can be made into respectively integrated circuit modules one by one, perhaps a plurality of modules in them or step is made into the single integrated circuit module and realizes.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, they can concentrate on single calculation element, also can be distributed on the network that a plurality of calculation elements form.
Each device/functional module/functional unit in above-described embodiment is realized with the form of software function module and during as independently production marketing or use, can be stored in a computer read/write memory medium.The above-mentioned computer read/write memory medium of mentioning 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 to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the described protection range of claim.
Claims (9)
1. the transmission system of resistor-type 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 the first modular converter is connected with described the second modular converter with described device port, is used for when receiving the resistor-type analog signal from described device port, the resistor-type analog signal conversion being become digital signal; And, after receiving digital signal from described the second modular converter, convert described digital signal to the resistor-type analog signal, and send by device port;
Described the second modular converter is connected with the described network port with described the first modular converter, is used for converting described digital signal to light signal, and sending by the described network port after receiving digital signal from described the first modular converter; And, after receiving light signal from the described network port, convert described light signal to digital signal, and send digital signal to described the first modular converter.
2. system according to claim 1, is characterized in that, described system also comprises:
Path management subsystem comprises:
Configuration module is used for the mutual special-purpose bang path of light signal that produces of configuration the first equipment and the second equipment;
Described optical networking also comprises routing subsystem, is connected with described path management subsystem, comprising:
Logging modle is connected with described configuration module, is used for recording the mutual special-purpose bang path of light signal that produces between described the first equipment and the second equipment;
Routing module, be connected with described logging modle, only be used for when the light signal that receives be between described the first equipment and the second equipment during the mutual light signal that produces, just using between the first equipment and the second equipment alternately, the special-purpose bang path of light signal of generation transmits.
3. system according to claim 2 is characterized in that:
Described path management subsystem also comprises:
Modified module is connected with described configuration module, is used for revising the special-purpose bang path of light signal mutual between described the first equipment and the second equipment after the correspondence between described the first equipment and the second equipment changes, and obtains revising result;
Described routing subsystem also comprises:
Update module is connected with described logging modle with described modified module, is used for according to described modification result, upgrades the bang path of described logging modle record.
4. system according to claim 1, is characterized in that, described trunk subsystem also comprises:
Policing port is connected with network monitoring center;
Transport module is used for by described policing port, resistor-type analog signal, light signal or the digital signal that obtains being sent.
5. system according to claim 4, is characterized in that, described policing port only carries out the transmit operation of resistor-type analog signal, light signal or digital signal.
6. system according to claim 1, is characterized in that, described trunk subsystem also comprises:
A plurality of control ports, each port is connected with a controlled device;
Sending module is connected with described a plurality of control ports, is used for sending to described controlled device the resistor-type analog signal, light signal or the digital signal that obtain simultaneously by described a plurality of control ports and sends.
7. system according to claim 7, is characterized in that, described control port only carries out the transmit operation of light signal or digital signal.
8. system according to claim 1, is characterized in that, described trunk subsystem also comprises:
Clock module is used for when the signal transmitting terminal of described trunk subsystem, controls described the second modular converter identical to the inversion frequency of light signal to target trunk subsystem corresponding to the inversion frequency of digital signal and conduct; Perhaps, when the signal receiving terminal of described trunk subsystem, control described the second modular converter to the inversion frequency of light signal with identical to the inversion frequency of digital signal as corresponding target trunk subsystem.
According to claim 1 to 8 arbitrary described system, it is characterized in that, described private network is for based on the private network of the SDH (Synchronous Digital Hierarchy) take optical fiber as medium (SDH).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110366942.8A CN103124196B (en) | 2011-11-18 | 2011-11-18 | The transmission system of resistive analog signal in private network |
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| CN201110366942.8A CN103124196B (en) | 2011-11-18 | 2011-11-18 | The transmission system of resistive analog signal in private network |
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| CN103124196A true CN103124196A (en) | 2013-05-29 |
| CN103124196B CN103124196B (en) | 2016-03-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106776440A (en) * | 2016-11-21 | 2017-05-31 | 北京润科通用技术有限公司 | A kind of changing method of multiple signals interface, system and Inverse problem backboard |
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| CN103124196B (en) | 2016-03-30 |
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