CN116827440A - Optical communication equipment, signal transmission system and power dynamic adjustment method - Google Patents
Optical communication equipment, signal transmission system and power dynamic adjustment method Download PDFInfo
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- CN116827440A CN116827440A CN202310737078.0A CN202310737078A CN116827440A CN 116827440 A CN116827440 A CN 116827440A CN 202310737078 A CN202310737078 A CN 202310737078A CN 116827440 A CN116827440 A CN 116827440A
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- 238000004891 communication Methods 0.000 title claims abstract description 292
- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000008054 signal transmission Effects 0.000 title claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/27—Arrangements for networking
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/564—Power control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0071—Provisions for the electrical-optical layer interface
Abstract
The application relates to an optical communication device, a signal transmission system and a power dynamic adjustment method, wherein the optical communication device comprises a main processor, a slave processor, an Ethernet signal converter and an optical signal converter; the input end and the output end of the Ethernet signal converter are connected with the slave processor and the main processor in a one-to-one correspondence manner, the input end and the output end of the optical signal converter are connected with the main processor and the slave processor in a one-to-one correspondence manner, and the main processor is connected with the slave processor. The application can well solve the problem of large bandwidth data transmission interruption caused by the limitation of interfaces in the prior art; meanwhile, the main processor and the auxiliary processor can be implemented by adopting common processors, so that the cost is lower compared with an MCU with a double-signal converter.
Description
Technical Field
The present application relates to the field of optical communications devices, and in particular, to an optical communications device, a signal transmission system, and a power dynamic adjustment method.
Background
The optical communication device is used as a bridge between the ethernet and the optical fiber, and is used for converting the ethernet signal into an optical signal for transmission, or converting the received optical signal into the ethernet signal for transmission.
In the existing optical communication equipment, signal transmission is generally performed by adopting a double-MCU mode, wherein one MCU is connected with a transmitting end and a receiving end of an Ethernet signal converter, the other MCU is connected with a transmitter and a receiving end of the optical signal converter, and the two MCUs are mutually communicated.
However, the following problems exist in the signal transmission by adopting the dual MCU mode of the optical communication device: currently, the commercially available interfaces for communication between MCUs cannot realize transmission of bandwidths of more than 100M and 200M in one direction, so that if the bandwidths of more than 100M and 200M in one direction are required to be transmitted, data transmission of optical communication equipment is interrupted; while the above problems can be solved by using one MCU with dual signal converters (ethernet signal converter and optical signal converter), the MCU with dual signal converter needs to be imported and is very expensive. There is therefore a continued need for improvement.
Disclosure of Invention
In order to reduce cost and solve the problem that the bandwidth is insufficient due to insufficient chip performance, namely, if more than one-way 100M bandwidth and more than two-way 200M bandwidth are required to be transmitted, data transmission of optical communication equipment is interrupted, the application provides the optical communication equipment, a signal transmission system and a power dynamic adjustment method.
In a first aspect, the present application provides a signal transmission system adopting the following technical scheme:
an optical communication device comprises a main processor, a slave processor, an Ethernet signal converter and an optical signal converter; the input end and the output end of the Ethernet signal converter are connected with the slave processor and the main processor in a one-to-one correspondence manner, the input end and the output end of the optical signal converter are connected with the main processor and the slave processor in a one-to-one correspondence manner, and the main processor is connected with the slave processor.
By adopting the technical scheme, the master processor and the slave processor are utilized, the input end and the output end of the Ethernet signal converter are correspondingly connected with the slave processor and the master processor one by one, the input end and the output end of the optical signal converter are correspondingly connected with the master processor and the slave processor one by one, and the master processor and the slave processor are connected, namely, a bridge network connection mode is adopted, so that each processor is connected with two signal converters, each processor is responsible for processing one link (only one bandwidth) to convert an Ethernet signal into an optical signal or convert the optical signal into an Ethernet signal, and only one master processor or slave processor is needed to participate in the signal conversion process and does not need to carry out signal transmission between the processors, therefore, the data transmission efficiency is higher, the problem of large bandwidth data transmission interruption caused by the limitation of an interface in the prior art can be well solved, and the transmission with more than one-way 100M and more than 200M bandwidths is realized; meanwhile, the main processor and the auxiliary processor can be implemented by adopting common processors, so that the cost is lower compared with an MCU with a double-signal converter.
Preferably, the master processor and the slave processor adopt MCU or FPGA. The realization is simple and convenient, and the cost is low.
Preferably, the master processor and the slave processor use the same clock. Thereby enabling to synchronize the data streams of the ethernet signal converter and the optical signal converter connected to the master processor and the slave processor.
Preferably, the master processor and the slave processor are connected through a serial port, and the serial port is relatively simple, so that the data transfer is more conveniently carried out on the two interfaces of the master processor and the slave processor.
In a second aspect, the present application provides a signal transmission system adopting the following technical scheme:
a signal transmission system comprises the optical communication equipment, wherein the optical communication equipment is used for mutual communication.
By adopting the technical scheme, the data transmission efficiency of the signal transmission system is higher, and the cost is lower.
In a third aspect, the present application provides a method for dynamically adjusting power of an optical communication device, which is applicable to the foregoing signal transmission system, and includes the following steps:
after normal communication is established between the optical communication devices, when the optical communication devices are moved so that the distance between the optical communication devices is changed, the optical communication devices insert frames in idle time for transmitting data, and the optical signal intensity of the optical communication devices is used for sending the optical signal intensity of the optical communication devices to the opposite side optical communication devices;
the opposite side optical communication equipment dynamically adjusts the transmitting power according to the intensity of the received optical signal, so that the optical communication equipment achieves the optimal communication quality.
By sampling the above technology, after normal communication is established between the optical communication devices, frame insertion is performed in idle time of data transmission, so as to send the optical signal intensity of the frame insertion to the opposite optical communication device, thereby the opposite optical communication device can dynamically adjust the transmitting power according to the received optical signal intensity, and the optimal communication quality is achieved between the optical communication devices. Compared with the mode of realizing power adjustment by designing a particularly complex power adjustment circuit in the prior art, the application has simpler implementation mode and lower cost. In addition, the application adopts the power adjustable technology, so that the power amplification range is larger, and the transmission distance of the optical communication equipment is longer.
Preferably, the optical communication equipment establishes normal communication by the following method:
after the power is on, the optical communication equipment starts to send signals to the opposite optical communication equipment;
if the opposite side optical communication equipment does not receive the signal, the optical communication equipment sequentially increases or decreases the power and then continuously transmits the signal to the opposite side optical communication equipment, and the like until the opposite side optical communication equipment receives the signal;
if the opposite side optical communication equipment receives the signal, feeding back the optimal transmitting power of the optical communication equipment transmitting the signal; adjusting the current power of the optical communication equipment for transmitting signals to the optimal transmitting power;
when the two optical communication devices are adjusted to the optimal transmitting power, normal communication is established between the two optical communication devices.
By adopting the above technical scheme, especially the optical communication devices transmit signals to each other by gradually increasing or decreasing the transmitting power, the other optical communication device feeds back the optimal transmitting power of the other optical communication device when receiving the signals, so that the optical communication device can adjust the transmitting power to the optimal state according to the optimal transmitting power, the other optical communication device which is not adjusted to the optimal state continuously increases or decreases the transmitting power to transmit the signals, and when the other optical communication device receives the signals, the optical communication device feeds back the optimal transmitting power, and the optical communication device can also adjust the transmitting power to the optimal state, that is, the scheme of the application can set the optimal transmitting power under the condition that the optimal transmitting power of the two optical communication devices is different (for example, one optical communication device is misaligned or shielded, so that the optimal transmitting power of the two optical communication devices is different), and can set the optimal transmitting power respectively, so that the optimal communication quality is achieved between the optical communication devices.
Preferably, when starting to send a signal to the opposite optical communication device, the emission power of the signal is 0.1mW; if the opposite side optical communication equipment does not receive the signal, the power of the optical communication equipment is increased by 0.01mW each time, and then the signal is continuously sent to the opposite side optical communication equipment; wherein the adjustable power range is 0.1mW-60mW.
By adopting the technical scheme, the transmitting power of the signal is set to be 0.1mW, if the opposite side optical communication equipment does not receive the signal, the power of the optical communication equipment is increased by 0.01mW each time and then the signal is continuously transmitted to the opposite side optical communication equipment, so that the initial value of the transmitting power is ensured to be small enough, the power which is increased each time is also small enough, the optimal transmitting power of the optical communication equipment is not missed when the transmitting power is gradually increased to mutually transmit the signal, and at least one optical communication equipment can quickly reach the optimal transmitting power, and the efficiency of establishing communication links by the two optical communication equipment is improved; in addition, the adjustable power range is set to be 0.1mW-60mW, so that the service life of the laser in the optical communication equipment can be ensured, and the inventor synthesizes the whole optical system, the receiving circuit, the transmitting circuit and the like in the optical communication equipment to find that the maximum power of the laser is 100mW, and the service life of the laser can be ensured to be longer when the maximum power is within 60mW.
Preferably, when the transmission power of the optical communication device transmitting the signal is closer to the optimal transmission power, the power increases at a slower rate, and the adjusted power amplitude is smaller. The speed of power increase is adjusted by judging whether the transmitting power of the optical communication equipment transmitting the signals is close to the optimal transmitting power, so that the speed of establishing normal communication of the two optical communication equipment can be improved.
Preferably, the optimal transmission power of the optical communication device for transmitting signals is determined by the following method:
the opposite side optical communication equipment receives signals and outputs RSSI signals, and the RSSI signals correspond to signal amplitudes;
when the signal amplitude corresponding to the output RSSI signal is 100mVp-p, the transmitting power of the optical communication equipment corresponding to the transmitting signal is the optimal transmitting power.
By adopting the method to determine the optimal transmitting power of the optical communication equipment for transmitting the signals, the optimal communication quality of the optical communication equipment can be ensured.
Preferably, when the frame is inserted, the received signal is inserted every 500 milliseconds under the state of 100 mVp-p; the received signal is inserted into the frame once less than 500 milliseconds under the state of being lower than 80mVp-p or higher than 150mVp-p, so that the optical communication equipment A and the optical communication equipment B can reach the optimal communication quality at the fastest speed.
The method for dynamically adjusting the power of the optical communication equipment specifically comprises the following steps:
after normal communication is established between the optical communication devices, when the optical communication devices are moved so that the distance between the optical communication devices is changed, a main processor in the first optical communication device inserts frames in idle time for transmitting data, and the main processor is used for transmitting the optical signal intensity of the first optical communication device to the second optical communication device through an optical signal converter;
the optical signal converter of the second optical communication equipment receives the optical signal and converts the optical signal into an electrical signal, and then sends the electrical signal to the slave processor of the second optical communication equipment;
the slave processor of the second optical communication device analyzes the electric signal and then judges whether the signal is a frame inserting signal or not;
if yes, the frame inserting signal is sent to a main processor of the second optical communication equipment, and the main processor of the second optical communication equipment dynamically adjusts the optical signal transmitting power of the main processor according to the optical signal intensity in the frame inserting signal, so that the first optical communication equipment and the second optical communication equipment achieve the best communication quality;
if not, the signal is sent to an Ethernet signal converter of the second optical communication device, and the Ethernet signal converter of the second optical communication device converts the signal into an Ethernet signal and then sends the Ethernet signal to the Ethernet.
By adopting the technical scheme, the main processor inserts frames in idle time of signal transmission, inserts frame data containing self optical signal intensity on the optical signal converter and sends out the frame data, when the slave processor of the opposite optical communication equipment analyzes the frame data of which the signal is the inside of the system, the frame data is sent to the main processor, and the main processor adjusts the sending power according to the optical signal intensity of the opposite party fed back, so that the optimal communication quality is controlled between the two optical communication equipment.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the application utilizes the master-slave processor, the input end and the output end of the Ethernet signal converter are connected with the slave processor and the master processor in a one-to-one correspondence manner, the input end and the output end of the optical signal converter are connected with the master processor and the slave processor in a one-to-one correspondence manner, the master processor and the slave processor are connected, namely, a bridge network connection mode is adopted, each processor is connected with two signal converters, each processor is responsible for processing one link (only one bandwidth), namely, the Ethernet signal is converted into an optical signal or the optical signal is converted into the Ethernet signal, and only one master processor or slave processor is needed to participate in the signal conversion process and signal transmission is not needed among the processors, so that the data transmission efficiency is higher, the problem of large bandwidth data transmission interruption caused by the limitation of an interface in the prior art can be well solved, and the transmission of more than 200M bandwidth in one direction is realized; meanwhile, the main processor and the auxiliary processor can be implemented by adopting common processors, so that the cost is lower compared with an MCU with a double-signal converter.
2. After normal communication is established between the optical communication devices, the frame is inserted in the idle time of data transmission, and the frame is used for transmitting the optical signal intensity of the frame to the opposite optical communication device, so that the opposite optical communication device can dynamically adjust the transmitting power according to the received optical signal intensity, and the optimal communication quality is achieved between the optical communication devices. Compared with the prior art that the power is adjusted by a complex hardware circuit, the power adjusting device is simpler in implementation mode and lower in cost.
Drawings
Fig. 1 is a schematic structural diagram of an optical communication device according to an embodiment of the present application.
Fig. 2 is a flow chart of a power dynamic adjustment method according to an embodiment of the present application.
Fig. 3 is a flowchart of a method for establishing normal communication by an optical communication device according to an embodiment of the present application.
Detailed Description
The application is described in further detail below with reference to fig. 1-3.
The embodiment of the application discloses optical communication equipment. Referring to fig. 1, an optical communication apparatus includes a master processor, a slave processor, an ethernet signal converter, and an optical signal converter; the input end and the output end of the Ethernet signal converter are connected with the slave processor and the main processor in a one-to-one correspondence manner, the input end and the output end of the optical signal converter are connected with the main processor and the slave processor in a one-to-one correspondence manner, and the main processor is connected with the slave processor.
In one embodiment, the RMII interface may be used for communication between the master processor and the ethernet signal converter and the optical signal converter, and between the slave processor and the ethernet signal converter and the optical signal converter, and in other embodiments, other interfaces may be used for communication.
In particular, in one embodiment, the master processor and the slave processor may use MCUs. In other embodiments, the master processor and the slave processor may also use FPGAs.
In the system, the master processor and the slave processor adopt the same clock. Different clocks can cause data streaming problems.
In one embodiment, the master processor and the slave processor may be connected through a serial port. In other embodiments, other interfaces may be used, but serial ports are simpler and are preferred.
The embodiment also discloses a signal transmission system. A signal transmission system comprises the optical communication equipment, wherein the optical communication equipment is used for mutual communication.
The embodiment of the application also discloses a power dynamic adjustment method of the optical communication equipment, which is suitable for the signal transmission system and comprises the following steps:
s1, after normal communication is established between optical communication devices, when the optical communication devices are moved so that the distance between the optical communication devices is changed, the optical communication devices insert frames in idle time for transmitting data, and the optical signal intensity of the optical communication devices is used for sending the optical signal intensity of the optical communication devices to the opposite side optical communication devices; the optical communication equipment can collect the optical signal intensity of the optical communication equipment through the AD signal collector; the intensity of the optical signal is generally within 100 mW;
optionally, in the frame inserting signal, the self-emission threshold current, the modulation current, the link state, the self-detection information and the like can be sent at the same time; the purpose of sending the self emission threshold current is to ensure that the optical communication equipment can emit light normally, and the specific light-emitting component can be a laser diode and the like in the optical communication equipment; when both optical communication devices receive the normal data frame of the other party, the link state is the link, otherwise, the link state is the unlink; the self-checking information, namely the power supply voltage, the temperature, the emission current and the like of the sensor in the self-checking optical communication equipment, is irrelevant to the adjustment power of the optical communication equipment.
Specifically, when frame insertion is performed, the received signal is subjected to frame insertion once every 500 milliseconds in a 100mVp-p state; the received signal is inserted into the frame once less than 500 milliseconds under the state of being lower than 80mVp-p or higher than 150 mVp-p;
the optical communication equipment can establish normal communication by the following method:
s11, after the power is on, the optical communication equipment starts to send signals to the opposite optical communication equipment;
in this embodiment, when starting to send a signal to the opposite optical communication device, the emission power of the signal may be 0.1mW, or may be greater than 0.1mW, but less than 0.1mW is not significant; if the opposite side optical communication equipment does not receive the signal, the power of the optical communication equipment is increased by 0.01mW each time (namely 0.01mW is increased; other values can be also adopted, but less than 0.01mW has no meaning), then the signal is continuously sent to the opposite side optical communication equipment, and the adjustable power range is 0.1mW-60mW; but the closer to the optimal transmit power, the slower the rate of power increase, the smaller the amplitude of the adjusted power.
S12, if the opposite side optical communication equipment does not receive the signal, the optical communication equipment sequentially increases or decreases power and then continues to send the signal to the opposite side optical communication equipment, and so on until the opposite side optical communication equipment receives the signal; wherein the transmit power is reduced because there is a possibility that the transmit power is too high, such as when the distance of two optical communication devices is changed from far to near;
specifically, when the transmission power of the optical communication device transmitting the signal is closer to the optimal transmission power, the power increasing speed is slower, and the adjusted power amplitude is smaller;
wherein, the optimal transmitting power of the optical communication device for transmitting signals is determined by the following modes:
s121, the opposite side optical communication equipment receives signals and outputs RSSI signals, wherein the RSSI signals correspond to signal amplitudes;
s122, when the signal amplitude corresponding to the output RSSI signal is 100mVp-p, the transmitting power of the optical communication equipment corresponding to the transmitting signal is the optimal transmitting power;
s13, if the opposite side optical communication equipment receives the signal, feeding back the optimal transmitting power of the optical communication equipment transmitting the signal; adjusting the current power of the optical communication equipment for transmitting signals to the optimal transmitting power;
s14, when the two optical communication devices are adjusted to the optimal transmitting power, normal communication is established between the two optical communication devices.
For example: the optical communication equipment A and the optical communication equipment B are required to establish communication, the optimal transmitting power of the two parties may be different, for example, the optical communication equipment A is aligned, the optical communication equipment B is not aligned, then the optical communication equipment A, B starts to transmit signals to the other party after being electrified, and starts to transmit a low-power signal to the other party, if no feedback signal is received, the transmitting power is gradually increased or is gradually reduced after being increased, and if the optical communication equipment A receives the feedback signal, the optical communication equipment B feeds back the optimal transmitting power of the optical communication equipment A, and then the optical communication equipment A adjusts the transmitting power of the optical communication equipment A to the optimal transmitting power; and the optical communication equipment B continuously and gradually increases the transmitting power within the range of 0.1mW-60mW, if the transmitting power transmitting signal fed back by the optical communication equipment A is not received yet, the transmitting power transmitting signal can be gradually reduced after the transmitting power transmitting signal is increased until the optimal transmitting power of the optical communication equipment B fed back by the optical communication equipment A is received, at the moment, the transmitting power of the optical communication equipment B is adjusted to be the optimal transmitting power by the optical communication equipment B, the optical communication equipment A and the optical communication equipment B work at the optimal transmitting power, and at the moment, normal communication is established by the optical communication equipment A and the optical communication equipment B.
When the power is adjusted, there is a great possibility that the two optical communication devices cannot be adjusted to the optimal power synchronously, and the optical communication device A is adjusted to the optimal power, but the optical communication device B continues to increase the transmitting power without detecting the signal until the signal of the optical communication device A is received, and the optical communication device B is adjusted to the optimal transmitting power according to the optimal transmitting power of the optical communication device B fed back by the optical communication device A.
S2, the opposite side optical communication equipment dynamically adjusts the transmitting power according to the intensity of the received optical signal, so that the optical communication equipment achieves the optimal communication quality.
For example, in a specific application scenario, after the optical communication equipment a and the optical communication equipment B establish normal communication, the optical communication equipment a needs to be moved, and then the distance between the optical communication equipment a and the optical communication equipment B changes, and then the transmitting power needs to be dynamically adjusted to keep the best communication quality. Specifically, the frame can be inserted in the idle time of normal communication of the optical communication equipment A and the optical communication equipment B, the respective optical signal intensities are sent out, and the signal transmitting power of the optical communication equipment A and the optical communication equipment B can be dynamically adjusted after the optical signal intensities of the opposite sides are received. More specifically, the received signal may be inserted every 500 ms in the 100mVp-p state, so that the bandwidth resources are not occupied as much as possible during the frame insertion. The received signal can be increased in frame insertion rate (i.e., less than once every 500 ms) at a state of below 80mVp-p (configurable) or above 150mVp-p (configurable) to ensure that the optical communication devices a and B reach the best communication quality at the fastest speed.
When the optimal communication quality is achieved between the optical communication devices, the frame insertion can be stopped, so that bandwidth resources are saved.
The method for dynamically adjusting the power of the optical communication equipment specifically comprises the following steps of:
after normal communication is established between the optical communication devices, when the optical communication devices are moved so that the distance between the optical communication devices is changed, a main processor in the first optical communication device inserts frames in idle time for transmitting data, and the main processor is used for transmitting the optical signal intensity of the first optical communication device to the second optical communication device through an optical signal converter; i.e. frames with signal strength are transmitted with TX;
the optical signal converter of the second optical communication equipment receives the optical signal and converts the optical signal into an electrical signal, and then sends the electrical signal to the slave processor of the second optical communication equipment;
the slave processor of the second optical communication device analyzes the electric signal and then judges whether the signal is a frame inserting signal (in the signal transmission system); specifically, whether the signal is an insertion frame signal can be identified through a specific data packet; in order to distinguish from the common data packet, the address, length, identification and content of the frame inserting packet can be special protocol;
if yes, the frame inserting signal is sent to a main processor of the second optical communication equipment, and the main processor of the second optical communication equipment dynamically adjusts the optical signal transmitting power of the main processor according to the optical signal intensity in the frame inserting signal, so that the first optical communication equipment and the second optical communication equipment achieve the best communication quality;
if not, the signal is sent to an Ethernet signal converter of the second optical communication device, and the Ethernet signal converter of the second optical communication device converts the signal into an Ethernet signal and then sends the Ethernet signal to the Ethernet.
When the power dynamic adjustment method is implemented, the power adjustment can be carried out by adopting a circuit for automatically adjusting the threshold current and the adjustment current of the emission laser diode in the conventional optical communication equipment, so that the optimal communication quality can be achieved at the distance of 0.1-300 m between the adjacent optical communication equipment.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, method and principle of the application should be covered by the scope of protection of the application.
Claims (10)
1. An optical communication device, characterized in that: the system comprises a main processor, a slave processor, an Ethernet signal converter and an optical signal converter; the input end and the output end of the Ethernet signal converter are connected with the slave processor and the main processor in a one-to-one correspondence manner, the input end and the output end of the optical signal converter are connected with the main processor and the slave processor in a one-to-one correspondence manner, and the main processor is connected with the slave processor.
2. The signal transmission system according to claim 1, wherein: the master processor and the slave processor adopt the same clock;
and/or
The main processor and the slave processor are connected through a serial port;
and/or
And the master processor and the slave processor adopt MCU or FPGA.
3. A signal transmission system comprising the optical communication apparatus according to claim 1 or 2, wherein the optical communication apparatuses communicate with each other.
4. A method for dynamically adjusting the power of an optical communication device, which is applicable to the signal transmission system of claim 3, and is characterized by comprising the following steps:
after normal communication is established between the optical communication devices, when the optical communication devices are moved so that the distance between the optical communication devices is changed, the optical communication devices insert frames in idle time for transmitting data, and the optical signal intensity of the optical communication devices is used for sending the optical signal intensity of the optical communication devices to the opposite side optical communication devices;
the opposite side optical communication equipment dynamically adjusts the transmitting power according to the intensity of the received optical signal, so that the optical communication equipment achieves the optimal communication quality.
5. The method for dynamically adjusting the power of an optical communication device according to claim 4, wherein the normal communication is established between the optical communication devices by:
after the power is on, the optical communication equipment starts to send signals to the opposite optical communication equipment;
if the opposite side optical communication equipment does not receive the signal, the optical communication equipment sequentially increases or decreases the power and then continuously transmits the signal to the opposite side optical communication equipment, and the like until the opposite side optical communication equipment receives the signal;
if the opposite side optical communication equipment receives the signal, feeding back the optimal transmitting power of the optical communication equipment transmitting the signal; adjusting the current power of the optical communication equipment for transmitting signals to the optimal transmitting power;
when the two optical communication devices are adjusted to the optimal transmitting power, normal communication is established between the two optical communication devices.
6. The method for dynamically adjusting power of an optical communication apparatus according to claim 5, wherein when a signal is started to be transmitted to an opposite optical communication apparatus, the transmission power of the signal is 0.1mW; if the opposite side optical communication equipment does not receive the signal, the power of the optical communication equipment is increased by 0.01mW each time, and then the signal is continuously sent to the opposite side optical communication equipment; wherein the adjustable power range is 0.1mW-60mW.
7. The method according to claim 5, wherein the power increasing speed is slower and the power amplitude is smaller as the transmission power of the optical communication device transmitting the signal is closer to the optimum transmission power.
8. The method for dynamically adjusting the power of an optical communication apparatus according to claim 5 or 7, wherein the optimal transmission power of the optical communication apparatus transmitting the signal is determined by:
the opposite side optical communication equipment receives signals and outputs RSSI signals, and the RSSI signals correspond to signal amplitudes;
when the signal amplitude corresponding to the output RSSI signal is 100mVp-p, the transmitting power of the optical communication equipment corresponding to the transmitting signal is the optimal transmitting power.
9. The method according to claim 4, wherein the frame insertion is performed every 500 ms when the received signal is in 100mVp-p state; the received signal is inserted once less than 500 milliseconds in the below 80mVp-p or above 150mVp-p state.
10. The method for dynamically adjusting the power of an optical communication device according to claim 4, comprising the steps of:
after normal communication is established between the optical communication devices, when the optical communication devices are moved so that the distance between the optical communication devices is changed, a main processor in the first optical communication device inserts frames in idle time for transmitting data, and the main processor is used for transmitting the optical signal intensity of the first optical communication device to the second optical communication device through an optical signal converter;
the optical signal converter of the second optical communication equipment receives the optical signal and converts the optical signal into an electrical signal, and then sends the electrical signal to the slave processor of the second optical communication equipment;
the slave processor of the second optical communication device analyzes the electric signal and then judges whether the signal is a frame inserting signal or not;
if yes, the frame inserting signal is sent to a main processor of the second optical communication equipment, and the main processor of the second optical communication equipment dynamically adjusts the optical signal transmitting power of the main processor according to the optical signal intensity in the frame inserting signal, so that the first optical communication equipment and the second optical communication equipment achieve the best communication quality;
if not, the signal is sent to an Ethernet signal converter of the second optical communication device, and the Ethernet signal converter of the second optical communication device converts the signal into an Ethernet signal and then sends the Ethernet signal to the Ethernet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310737078.0A CN116827440A (en) | 2023-06-21 | 2023-06-21 | Optical communication equipment, signal transmission system and power dynamic adjustment method |
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| CN202310737078.0A CN116827440A (en) | 2023-06-21 | 2023-06-21 | Optical communication equipment, signal transmission system and power dynamic adjustment method |
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| CN202310737078.0A Pending CN116827440A (en) | 2023-06-21 | 2023-06-21 | Optical communication equipment, signal transmission system and power dynamic adjustment method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102017469A (en) * | 2008-04-30 | 2011-04-13 | 通用仪表公司 | Method and apparatus for controlling the optical output power from a burst mode laser |
| EP2466805A1 (en) * | 2010-12-16 | 2012-06-20 | Pepperl & Fuchs GmbH | Method for transmitting data between two participants, converter for transmitting and receiving data and data transmission path |
| CN105099565A (en) * | 2014-04-16 | 2015-11-25 | 华为技术有限公司 | Light emission system, light emission method, optical switching device and control method |
| CN116137549A (en) * | 2021-11-16 | 2023-05-19 | 广东小天才科技有限公司 | Underwater communication power adjustment method and device and wearable intelligent device |
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- 2023-06-21 CN CN202310737078.0A patent/CN116827440A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102017469A (en) * | 2008-04-30 | 2011-04-13 | 通用仪表公司 | Method and apparatus for controlling the optical output power from a burst mode laser |
| EP2466805A1 (en) * | 2010-12-16 | 2012-06-20 | Pepperl & Fuchs GmbH | Method for transmitting data between two participants, converter for transmitting and receiving data and data transmission path |
| CN105099565A (en) * | 2014-04-16 | 2015-11-25 | 华为技术有限公司 | Light emission system, light emission method, optical switching device and control method |
| CN116137549A (en) * | 2021-11-16 | 2023-05-19 | 广东小天才科技有限公司 | Underwater communication power adjustment method and device and wearable intelligent device |
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