CN103686475A - Low-power standby method of electricity consumption information acquisition system using EPON (Ethernet passive optical network) as smart power grid - Google Patents
Low-power standby method of electricity consumption information acquisition system using EPON (Ethernet passive optical network) as smart power grid Download PDFInfo
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- CN103686475A CN103686475A CN201310611882.0A CN201310611882A CN103686475A CN 103686475 A CN103686475 A CN 103686475A CN 201310611882 A CN201310611882 A CN 201310611882A CN 103686475 A CN103686475 A CN 103686475A
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Abstract
The invention provides a low-power standby method of an electricity consumption information acquisition system using the EPON (Ethernet passive optical network) as a smart power grid. The method includes: an optical network unit is standby after being connected to an optical line terminal and successfully registering; when the optical line terminal sends a transmitting system startup command to the optical network unit, the optical network unit returns information of the transmitting system startup command back to the optical line terminal. The optical network unit shuts down a transmitting system of the optical network unit when in a standby mode, a receiving system of the optical network unit is in a listening mode, awaiting commands from the optical line terminal; only after the optical line terminal sends out the transmitting system startup command, the optical network unit starts up the transmitting system and returns corresponding information according to command requirements; in case of non-critical events, the optical network never actively starts up the transmitting system. Therefore, the startup time of the transmitting system of the optical network unit in the system standby mode is shortened; standby-mode power consumption of the electricity consumption information acquisition system using the EPON is reduced.
Description
Technical field
The present invention relates to intelligent grid technical field, relate in particular to a kind of EPON for the low-power consumption standby method of used for intelligent electric network power utilization information collection system.
Background technology
Ethernet passive optical network (EPON) is realized the major technique part of power distribution automation by national grid approval as intelligent grid, and has been widely used in the collection of power consumer power information.
And Multi-point Control Protocol (MPCP in the standard IEEE 802.3ah of EPON, Multi-Point Control Protocol) in Multi-point Control Protocol, for report, process and claim even without bandwidth request in the situation that, also should periodically produce report, thereby the WatchDog Timer that guarantees optical line terminal (OLT, Optical Line Terminal) can be because of overtime cancellation ONU.In order to guarantee that this mechanism runs well, OLT will periodically authorize to ONU.Agreement is 1 second by OLT authorization cycles regulation, simultaneously ONU self take 50 milliseconds as the cycle to OLT, send report.In the < < Q/GDW1373-2013 of State Grid Corporation of China power consumer power information acquisition system functional specification > >, the collection of clear and definite power consumer power information mainly contains timing automatic collection, manually call survey together, three kinds of modes of active reporting, this just means that the collection of power information generally only occurs in official hour or specific event occurs constantly, all the other mosts of the time are all in holding state, if according to the optical network unit (ONU of electric energy meter, Optical Network Unit) mode is carried out networking, ONU access of each user, popularity for power grid application, acquisition system holding state power consumption number will be a huge numeral.This loss is from the energy or economic angle is all beyond affordability.
Summary of the invention
(1) technical problem solving
In order to solve the too high deficiency of energy consumption under existing ethernet passive optical network system standby state, the invention provides a kind of EPON for the low-power consumption standby method of used for intelligent electric network power utilization information collection system.
(2) technical scheme
Technical scheme provided by the invention be a kind of EPON for the low-power consumption standby method of used for intelligent electric network power utilization information collection system, the method comprises the following steps:
S1: described optical network unit returns to registration confirmation message to described optical line terminal;
S2: described optical line terminal sends and closes transmitting system instruction to described optical network unit after receiving described registration confirmation message, and described optical network unit enters holding state;
S3: when described optical network unit receives the unlatching transmitting system instruction that described optical line terminal sends, enter step S4; Otherwise, keep holding state;
S4: described optical network unit is opened described transmitting system and returned after the information of corresponding described unlatching transmitting system instruction, returns to step S3.
Preferably, described step S2 is specially:
Described in described optical network unit receives, close after transmitting system instruction, close the transmitting system of described optical network unit; Described optical network unit enters holding state.
Preferably, described maintenance holding state is specially:
S31: at interval of the first setting-up time, described optical line terminal sends status monitoring instruction to described optical network unit;
S32: the described receiving system of described optical network unit receives after described status monitoring instruction, replys instruction by described transmitting system to described optical line terminal transmission state;
S33: described optical line terminal receives described state and replys after instruction, sends and closes transmitting system instruction to described optical network unit;
S34: close described transmitting system after closing transmitting system instruction described in described optical network unit receives.
Preferably, described step S33 also comprises:
When described optical line terminal does not receive described state and replys instruction in described the first setting-up time, think that described optical network unit departs from described optical line terminal; If depart from the described optical network unit of described optical line terminal again to described optical line terminal registration, add described optical line terminal.
Preferably, described optical network unit also comprises after opening described transmitting system and returning to the information of corresponding described unlatching transmitting system instruction:
Described optical line terminal sends and closes transmitting system instruction to described optical network unit after receiving the information of corresponding described unlatching transmitting system instruction, closes described transmitting system after closing transmitting system instruction described in described optical network unit receives.
Preferably, described step S4 is specially:
The data processing chip of described optical network unit is received after the instruction of described unlatching transmitting system, by control circuit, is opened described transmitting system; Described data processing chip is crossed described transmitting system by the information exchange of the described unlatching transmitting system of correspondence instruction and is returned to described optical line terminal.
Preferably, described step S4 also comprises:
When setting event occurs, described optical network unit sends the information of corresponding described setting event to optical line terminal.
Preferably, described the first setting-up time is 1 second.
(3) beneficial effect
Optical network unit of the present invention before the information gathering instruction that does not receive optical line terminal in holding state; This holding state will be closed the transmitting system of optical network unit, and its receiving system is waited for optical line terminal instruction in intercepting state; Only have optical network unit after optical line terminal sends the instruction of unlatching transmitting system just open transmitting system and return to corresponding informance according to command request, non-critical event generation optical network unit will initiatively not opened transmitting system; Therefore, reduced the optical network unit transmitting system opening time under system standby state; Reduced the energy consumption under electric power EPON power information acquisition system holding state.
Accompanying drawing explanation
Fig. 1 is the method flow diagram of embodiment 1;
Fig. 2 is the signal interaction figure of optical line terminal and optical network unit under holding state;
Fig. 3 is ONU transmitting system On/Off schematic diagram.
Embodiment
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Embodiment 1:
The present embodiment provides the low-power consumption standby method of a kind of EPON for used for intelligent electric network power utilization information collection system, in order to solve the too high deficiency of energy consumption under existing ethernet passive optical network system standby state.
The present embodiment provides the low-power consumption standby method of a kind of EPON for used for intelligent electric network power utilization information collection system, and the method comprises the following steps:
S1: described optical network unit returns to registration confirmation message to described optical line terminal;
S2: described optical line terminal sends and closes transmitting system instruction to described optical network unit after receiving described registration confirmation message, and described optical network unit enters holding state;
S3: when described optical network unit receives the unlatching transmitting system instruction that described optical line terminal sends, enter step S4; Otherwise, keep holding state;
S4: described optical network unit is opened described transmitting system and returned after the information of corresponding described unlatching transmitting system instruction, returns to step S3.Flow chart as shown in Figure 1.
The optical network unit of the present embodiment before the information gathering instruction that does not receive optical line terminal in holding state; This holding state will be closed the transmitting system of optical network unit, and its receiving system is waited for optical line terminal instruction in intercepting state; Only have optical network unit after optical line terminal sends the instruction of unlatching transmitting system just open transmitting system and return to corresponding informance according to command request, non-critical event generation optical network unit will initiatively not opened transmitting system; Therefore, reduced the optical network unit transmitting system opening time under system standby state; Reduced the energy consumption under electric power EPON power information acquisition system holding state.
The mode that described optical line terminal sends instruction to described optical network unit has multiple, mainly contains:
1: described optical line terminal interval setting-up time (the first setting-up time is 1 second) sends instruction to described optical network unit, and described optical network unit returns to Information Monitoring corresponding to described instruction to described optical line terminal.
2: when manually calling measurement information instruction by described optical line terminal together to described optical network unit transmission, described in described optical network unit returns to described optical line terminal, call information corresponding to measurement information instruction together.
In addition, when setting event (as the signal acquisition circuit of optical network unit finds that data exceed normal range (NR) or data exception etc.) occurs, described optical network unit sends the information of corresponding described setting event to optical line terminal.
Standby command, for when not Information Monitoring, makes described optical network unit standby.Optical line terminal described in described step S2 sends and closes transmitting system instruction to described optical network unit after receiving described registration confirmation message, and described optical network unit enters holding state and is specially:
Described in described optical network unit receives, close after transmitting system instruction, close the transmitting system of described optical network unit; Described optical network unit enters holding state.Enter after holding state, also will keep holding state.Keep holding state for constantly guaranteeing, under the control of described optical network unit in described optical line terminal, to carry out at any time information gathering.Wherein, the receiving system of described optical network unit is always in the state of intercepting.
In step S3, when described optical network unit receives the unlatching transmitting system instruction that described optical line terminal sends, enter step S4; Otherwise, keep holding state to be specially:
S31: at interval of the first setting-up time, described optical line terminal sends status monitoring instruction to described optical network unit; The first setting-up time is generally 1 second;
S32: the described receiving system of described optical network unit receives after described status monitoring instruction, replys instruction by described transmitting system to described optical line terminal transmission state;
S33: described optical line terminal receives described state and replys after instruction, sends and closes transmitting system instruction to described optical network unit; When described optical line terminal does not receive described state and replys instruction in described the first setting-up time, think that described optical network unit departs from described optical line terminal; If depart from the described optical network unit of described optical line terminal again to described optical line terminal registration, add described optical line terminal; Described optical line terminal recovers the control to described optical network unit;
S34: close described transmitting system after closing transmitting system instruction described in described optical network unit receives.
The data processing chip of optical network unit described in described step S4 is received after the instruction of described unlatching transmitting system, by control circuit, is opened described transmitting system; Described data processing chip is crossed described transmitting system by the information exchange of the described unlatching transmitting system of correspondence instruction and is returned to described optical line terminal.When setting event occurs, described optical network unit sends the information of corresponding described setting event to optical line terminal.Described optical network unit is opened described transmitting system and is returned to the information of corresponding described unlatching transmitting system instruction, described optical line terminal sends and closes transmitting system instruction to described optical network unit after receiving the information of corresponding described unlatching transmitting system instruction, closes described transmitting system after closing transmitting system instruction described in described optical network unit receives.
Embodiment 2:
The present embodiment provides an actual scene to describe the method for embodiment 1.It is example that the present embodiment be take the collection of power information.
From power consumer power information, gather standard, the power consumption that focuses on acquisition system holding state electric power ONU that system power dissipation reduces, electric power ONU only need to be ready at all times to receive OLT order and thereby respective handling is made in ammeter critical event during this period of time, and transmitting system can close to reduce power consumption.And for the acquisition system based on EPON, need to consider relevant regulations in IEEE802.3ah simultaneously.The scheme that the present embodiment proposes is taken into account above two aspect situations simultaneously, and electric power ONU equipment in electric power EPON system is made to following improvement:
1. cancel ONU periodicity and send report setting to OLT, utilize OLT periodically to arranging of ONU mandate, to guarantee ONU presence.
From the above, for guaranteeing that ONU is in line states constantly, arranging of ONU requires at least every 50 milliseconds of transmitting system just in opening, to OLT, to send report information, and the setting of OLT can make ONU transmitting system open interval and extend to 1 second.From the viewpoint of the complexity of change being set and interconnecting, guaranteeing that ONU moment line mechanism arranges, cancellation ONU periodically sends report to OLT and arranges relatively feasible effective simultaneously.
2. at power information acquisition system holding state, adopt following working method:
After new ONU access network, start register flow path, ONU has registered.OLT closes transmitting system (with the signal sending circuit of above-described embodiment 1) message to its transmission after receiving ONU registration confirmation message, the cpu chip of ONU is closed transmitting system by control circuit after receiving this message, receiving system (with the signal acquisition circuit of above-described embodiment 1) keeps intercepting state always, and ONU enters holding state.
According to MPCP agreement, stipulate, after 1 second, OLT sends and opens transmitting system message to ONU, ONU opens transmitting system by control circuit after receiving this message, and returns to report message to OLT, and OLT closes transmitting system message to its transmission after receiving the report message that ONU returns.Under holding state, the signal interaction figure of optical line terminal and optical network unit as shown in Figure 2.
In addition working state of system:
(1) when information gathering arrives constantly, OLT sends and opens transmitting system message and data acquisition command to ONU, ONU enters data acquisition uploaded state, and OLT will no longer send and close transmitting system message, and after data acquisition reports and finishes, ONU closes transmitting system automatically;
(2) manually call that to survey the situation that data and information gathering arrive constantly similar together;
(3) when ammeter generation critical event needs active reporting, ONU opens transmitting system automatically, and reporting events finishes rear ONU and automatically closes transmitting system.
ONU transmitting system On/Off schematic diagram as shown in Figure 3.
Optical network unit of the present invention before the information gathering instruction that does not receive optical line terminal in holding state; This holding state will be closed the transmitting system of optical network unit, and its receiving system is waited for optical line terminal instruction in intercepting state; Only have optical network unit after optical line terminal sends the instruction of unlatching transmitting system just open transmitting system and return to corresponding informance according to command request, non-critical event generation optical network unit will initiatively not opened transmitting system; Therefore, reduced the optical network unit transmitting system opening time under system standby state; Reduced the energy consumption under electric power EPON power information acquisition system holding state.
Above execution mode is only for illustrating the present invention; and be not limitation of the present invention; the those of ordinary skill in relevant technologies field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (8)
1. EPON, for a low-power consumption standby method for used for intelligent electric network power utilization information collection system, is characterized in that, the method comprises the following steps:
S1: described optical network unit returns to registration confirmation message to described optical line terminal;
S2: described optical line terminal sends and closes transmitting system instruction to described optical network unit after receiving described registration confirmation message, and described optical network unit enters holding state;
S3: when described optical network unit receives the unlatching transmitting system instruction that described optical line terminal sends, enter step S4; Otherwise, keep holding state;
S4: described optical network unit is opened described transmitting system and returned after the information of corresponding described unlatching transmitting system instruction, returns to step S3.
2. EPON as claimed in claim 1, for the low-power consumption standby method of used for intelligent electric network power utilization information collection system, is characterized in that, described step S2 is specially:
Described in described optical network unit receives, close after transmitting system instruction, close the transmitting system of described optical network unit; Described optical network unit enters holding state.
3. EPON as claimed in claim 2, for the low-power consumption standby method of used for intelligent electric network power utilization information collection system, is characterized in that, described maintenance holding state is specially:
S31: at interval of the first setting-up time, described optical line terminal sends status monitoring instruction to described optical network unit;
S32: the described receiving system of described optical network unit receives after described status monitoring instruction, replys instruction by described transmitting system to described optical line terminal transmission state;
S33: described optical line terminal receives described state and replys after instruction, sends and closes transmitting system instruction to described optical network unit;
S34: close described transmitting system after closing transmitting system instruction described in described optical network unit receives.
4. EPON as claimed in claim 3, for the low-power consumption standby method of used for intelligent electric network power utilization information collection system, is characterized in that, described step S33 also comprises:
When described optical line terminal does not receive described state and replys instruction in described the first setting-up time, think that described optical network unit departs from described optical line terminal; If depart from the described optical network unit of described optical line terminal again to described optical line terminal registration, add described optical line terminal.
5. EPON as claimed in claim 4, for the low-power consumption standby method of used for intelligent electric network power utilization information collection system, is characterized in that, described optical network unit also comprises after opening described transmitting system and returning to the information of corresponding described unlatching transmitting system instruction:
Described optical line terminal sends and closes transmitting system instruction to described optical network unit after receiving the information of corresponding described unlatching transmitting system instruction, closes described transmitting system after closing transmitting system instruction described in described optical network unit receives.
6. EPON as claimed in claim 5, for the low-power consumption standby method of used for intelligent electric network power utilization information collection system, is characterized in that, described step S4 is specially:
The data processing chip of described optical network unit is received after the instruction of described unlatching transmitting system, by control circuit, is opened described transmitting system; Described data processing chip is crossed described transmitting system by the information exchange of the described unlatching transmitting system of correspondence instruction and is returned to described optical line terminal.
7. EPON as claimed in claim 6, for the low-power consumption standby method of used for intelligent electric network power utilization information collection system, is characterized in that, described step S4 also comprises:
When setting event occurs, described optical network unit sends the information of corresponding described setting event to optical line terminal.
8. EPON as claimed in claim 7, for the low-power consumption standby method of used for intelligent electric network power utilization information collection system, is characterized in that, described the first setting-up time is 1 second.
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Application publication date: 20140326 |