CN103731193A - Wireless automatic relay networking method and meter reading system - Google Patents
Wireless automatic relay networking method and meter reading system Download PDFInfo
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- CN103731193A CN103731193A CN201410002042.9A CN201410002042A CN103731193A CN 103731193 A CN103731193 A CN 103731193A CN 201410002042 A CN201410002042 A CN 201410002042A CN 103731193 A CN103731193 A CN 103731193A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/60—Arrangements in telecontrol or telemetry systems for transmitting utility meters data, i.e. transmission of data from the reader of the utility meter
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Abstract
The invention relates to the technical field of route relay networking, in particular to a wireless automatic relay networking method and a meter reading system. Compared with the prior art, for a small number of collectors which do not join in a concentrator routing table yet, a concentrator sends unicast signals to the collectors according to the network addresses of the collectors to carry out name-calling networking. The networking process can be stopped and can be continued after the concentrator finishes other communication work. Meanwhile, the collectors to access a network are not broadcast, and interference on other collectors and the concentrator during meter reading is greatly lowered.
Description
Technical field
The present invention relates to route relay networking technical field, relate in particular to a kind of method and kilowatt meter reading-out system of wireless automatic relay networking.
Background technology
Based on the kilowatt meter reading-out system of low-voltage power carrier communication, carrier communication near distance, communication disturbs source complicated, except being subject to various electrical equipment interference, power line material, whether wiring firmly waits and has impact, and communication success rate and communication speed are low.Power line 3 phase separates, and two gauge tables are as being arranged on out of phase, though two table next-door neighbour installations, also cannot communication.
Summary of the invention
Technical problem to be solved by this invention is: a kind of method and kilowatt meter reading-out system of wireless automatic relay networking are provided, make system can automatically form relay communication network, avoid manual maintenance, the collector in this network can gather ammeter data automatically.The present invention is achieved in that
The method of wireless automatic relay networking, comprises the steps:
Concentrator sends broadcast singal;
First order collector listens to this broadcast singal and forwards, and second level collector listens to the broadcast singal of forwarding and continues to forward; By that analogy until the network route number of plies reaches restriction;
Collectors at different levels deposit the network address of other collectors that listen in self neighbor table;
The next stage network address of concentrator using the network address of first order collector as concentrator deposits concentrator routing table in, and sends to the first order collector first order collector neighbor table request of obtaining;
First order collector sends to concentrator according to described request by its neighbor table, concentrator deposits as the next stage network address of the first order collector network address that belongs to second level collector in first order collector neighbor table in concentrator routing table, and sends to the second level collector second level collector neighbor table request of obtaining; By that analogy until the network address of all collectors that can be listened all deposits concentrator routing table in;
Concentrator sends networking signal according to concentrator routing table to each collector, and the collector that receives described networking broadcast singal feeds back networking confirmation signal to complete networking to described concentrator;
When the collector ratio networking reaches after set point, described concentrator sends networking unicast signal to the collector respectively also not networking successively, receives the collector of described networking clean culture networking signal to described concentrator feedback networking confirmation signal.
Further, described method also comprises the steps:
Described concentrator be the collector that networks distribute one No. ID, this collector can be according to the time sequencing of determining itself and described concentrator communication for this No. ID.
Further, described method also comprises the steps:
Described concentrator arranges some continuous times of section, within first time period, all channels are intercepted, if listen to the signal of the network that does not belong to this concentrator at certain channel, in the next time period, cancel intercepting this channel, by that analogy until after all time periods intercept, choose the minimum channel of RSSI value in the channel that remainder is listened as working channel.
Further, described method also comprises the steps:
Networking broadcast singal or the networking unicast signal of described collector to four channels intercepted, and after networking, selects the channel same with concentrator as working channel, and other channels are kept intercepting.
Further, described method also comprises the steps:
Also do not add the collector of described concentrator routing table by adding the collector broadcast networking request signal of described concentrator routing table.
Further, described method also comprises the steps:
Also do not add the collector of described concentrator routing table to intercept the message transmitting in the network of described concentrator, therefrom parse routing information, and select shortest path to send to described concentrator the request of networking.
A kilowatt meter reading-out system for wireless automatic relay networking, comprises concentrator and some grades of collectors; Described collector is connected with ammeter, for gathering ammeter data; Described concentrator and described collector wireless connections, the ammeter data gathering for concentrated each collector also sends to the center of checking meter; Described concentrator is used for sending broadcast singal;
First order collector is used for intercepting this broadcast singal and forwards, and second level collector is for intercepting the broadcast singal of forwarding and continuing to forward; By that analogy until the network route number of plies reaches restriction;
Collectors at different levels are also for depositing the network address of other collectors that listen in self neighbor table;
Concentrator deposits concentrator routing table in for the next stage network address using the network address of first order collector as concentrator, and sends to the first order collector first order collector neighbor table request of obtaining;
First order collector is also for sending to concentrator according to described request by its neighbor table, concentrator also deposits concentrator routing table for the network address that first order collector neighbor table is belonged to second level collector in as the next stage network address of first order collector, and sends to the second level collector second level collector neighbor table request of obtaining; By that analogy until the network address of all collectors that can be listened all deposits concentrator routing table in;
Concentrator is also for sending networking broadcast singals according to the network address of each collector to all collectors, and collector is also for feed back networking confirmation signal to described concentrator when receive described networking broadcast singal, thereby completes networking;
Described concentrator also sends networking unicast signal to the collector respectively also not networking after reaching set point when the collector ratio networking, receive the collector of described networking clean culture networking signal for feeding back networking confirmation signal to described concentrator, thereby complete networking.
Further, described concentrator be also used to the collector of networking distribute one No. ID, this collector can be according to the time sequencing of determining itself and described concentrator communication for this No. ID.
Further, described concentrator is also for arranging some continuous times of section, within first time period, all channels are intercepted, if listen to the signal of the network that does not belong to this concentrator at certain channel, in the next time period, cancel intercepting this channel, by that analogy until after all time periods intercept, choose the minimum channel of RSSI value in the channel that remainder is listened as working channel.
Further, described collector is also intercepted all channels for timesharing before networking, selects the channel same with concentrator as working channel and select in addition at least two channels to intercept after networking.
Further, also do not add the collector of described concentrator routing table for the collector broadcast networking request signal by adding described concentrator routing table.
Further, the message that does not also add the collector of described concentrator routing table to transmit for intercepting the network of described concentrator, therefrom parses routing information, and selects shortest path to send to described concentrator the request of networking.
Compared with prior art, for the small part collector that does not also add concentrator routing table, concentrator sends unicast signal networking of calling the roll according to the network address of this collector to this collector.This networking process can be interrupted, and can after concentrator completes other communication work, proceed networking.Meanwhile, because these collectors to be networked are not broadcasted, the interference while greatly having reduced other collectors and concentrator to check meter.
Accompanying drawing explanation
Fig. 1: the automatic relay networking schematic flow sheet that the embodiment of the present invention provides;
Fig. 2: the kilowatt meter reading-out system composition schematic diagram of the automatic relay networking that the embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only for explaining the present invention, is not intended to limit the present invention.
Figure 1 shows that the kilowatt meter reading-out system composition schematic diagram of the automatic relay networking that the embodiment of the present invention provides, Figure 2 shows that collector networking schematic flow sheet in the method for the wireless automatic relay networking that the embodiment of the present invention provides.Shown in Fig. 1, the kilowatt meter reading-out system of wireless automatic relay networking provided by the invention comprises concentrator 2 and some grades of collectors 3; Collector 3 is connected with ammeter 4, for gathering ammeter data; Concentrator 2 and collector 3 wireless connections, the ammeter data gathering for concentrated each collector 3 also sends to the center of checking meter 1.
System adopts master-slave architecture, to meet data centralization collection, the requirement of centralized management.The corresponding multiple collectors 3 of concentrator 2, each collector 3 at least connects an ammeter 4.The center 1 of checking meter gathers by concentrator 2 ammeter data that each collector 3 that these concentrators 2 manage gathers.Collector 3 can join the communication network that relies on concentrator 2 to form automatically, between concentrator 2 and collector 3, can carry out relay connection by other collectors 3 in the communication network of this concentrator 2, to cover the scope of managing significantly, meets large-scale network-estabilishing application.
Shown in Fig. 1, the networking process of native system is as follows:
Concentrator 2 sends broadcast singal.The collector 3 that receives this broadcast singal is defined as first order collector, first order collector forwards after receiving this broadcast singal, the collector 3 that receives the broadcast singal of this forwarding is defined as second level collector, and second level collector continues this signal to forward.By that analogy, broadcast singal forwards through multistage collector, until the network route number of plies reaches restriction.During each collector 3 forwards broadcast singal, each collector 3 is also in the state of intercepting.If a certain collector 3 listens to other collectors 3 and forwarding broadcast singal, deposit the network address at the collector 3 that forwards broadcast singal listening in self neighbor table.Process is intercepted broadcast singal, and each collector 3 all has neighbor table separately.Each collector 3 has separately after neighbor table, and concentrator 2, to the routing table that the network address of each first order collector is deposited in to this concentrator 2 as the next stage network address of this concentrator 2, meanwhile, sends the request of obtaining its neighbor table to each first order collector.Each first order collector sends to concentrator 2 according to this request by its neighbor table, concentrator deposits the network address that belongs to second level collector in the neighbor table receiving in the routing table of concentrator 2 as the next stage network address of first order collector, meanwhile, to each second level collector, send its neighbor table request of obtaining.Each second level collector is also such according to first order collector, by that analogy until the network address of all collectors that can be listened 3 all deposits the routing table of concentrator 2 in.Concentrator 2 completes after obtaining of neighbor table to each collector 3, according to the network address of each collector 3 and path, to each collector 3, send networking broadcast singal, receive the collector 3 of networking broadcast singal to concentrator feedback networking confirmation signal, thereby complete networking.
Above-mentioned networking mode is a kind of broadcast networking mode, after networking finishes, just can check meter according to the above-mentioned flow process of checking meter.But, even if carry out according to the method described above networking, still may there is the collector 3 of the routing table that does not add this concentrator 2, meanwhile, also may there be 3 requests of new collector to add the routing table of concentrator 2.As shown in Figure 1, for the collector 3 of routing table that does not also add this concentrator 2, concentrator 2 can send networking unicast signal to the collector 3 that does not respectively also add concentrator routing table successively according to its network address, the collector 3 that receives networking unicast signal feeds back networking confirmation signal to concentrator 2, completes networking.This networking mode is different from the broadcast networking mode of concentrator 2, belongs to roll-call networking mode, adopts the networking process of roll-call networking mode to interrupt, and can after concentrator 2 completes other communication work, proceed networking.Meanwhile, owing to adopting during this network access mode, these collectors 3 to be networked are not broadcasted, the interference while greatly having reduced other collectors 3 and concentrator 2 to check meter.
Certainly, for also not adding the collector 3 of routing table of this concentrator 2 and the free collector of collector 3(newly adding), can also be by the networking mode networking of free collector as shown in Figure 1, idiographic flow is as follows:
Free collector 3 is intercepted the message in the network of concentrator 2, in these messages, include routing information, free collector 3 can be found out the path the shortest from concentrator 2 by resolving these routing informations, then, collector 3 can send to concentrator 2 request of networking by the collector 3 having networked according to this shortest path, thereby completes networking.Meanwhile, free collector 3 can also, by broadcast mode initiatively by adding other collectors 3 broadcast of routing table of concentrator 2 request that networks, be waited for and being found by concentrator 2, thereby realize, networks.
Collector 3 has added after the routing table of concentrator 2, for network communication clashes, the collector 3 that concentrator 2 is each networking distributed one No. ID, collector 3 can be according to the time sequencing of determining itself and 2 communications of described concentrator for this No. ID, each collector 3 carries out communication according to time sequencing and concentrator 2 separately, thereby avoids multiple collectors 3 carry out communication with concentrator 2 and clash simultaneously.
Wireless networking scope covers wide, and not retrained by circuit, and the problem causing is if same area need to dispose multiple independently wireless communication networks time, can produce interference.Solution is that concentrator 2 and collector 3 are divided into by the frequency range of using separately the channel that some bandwidth are less, by algorithms of different, makes to select separately channel correspondence.The flow process of concentrator 2 and collector 3 selective channels is as follows respectively:
The flow process of concentrator 2 selective channels: concentrator 2 arranges some continuous times of section, within first time period, all channels are intercepted, if listen to the signal of the network that does not belong to this concentrator 2 at certain channel, in the next time period, cancel intercepting this channel, by that analogy until after all time periods intercept, choose the minimum channel of RSSI value in the channel that remainder is listened as working channel;
The flow process of collector 3 selective channels: networking broadcast singal or the networking unicast signal of collector 3 to four channels intercepted, selects the channel same with concentrator as working channel after networking, and other channels are kept intercepting.Support 4 channel timesharing networkings can improve networking efficiency, after networking success, keep the broadcast networking of other channels to intercept, situation about changing to tackle host node working channel.
When large-scale collector 3 does not network, concentrator 2 is set up basic network by broadcast networking.The minority collector 3 not networking when broadcast for some reason, continues to survey with broadcast mode, and spent time is more, makes to wait for that the very long time could start to check meter.Therefore, if concentrator 2 only does merely broadcast networking, those minority collectors 3 that do not network so, can only wait for after one period of long period, with the network access mode of the collector 3 that dissociates, network.For these minorities from node, preferablyly by the mode of calling the roll, carry out networking, by sending the mode of unicast signal, search for collector 3, thereby included in network.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (12)
1. a method for wireless automatic relay networking, is characterized in that, comprises the steps:
Concentrator sends broadcast singal;
First order collector listens to this broadcast singal and forwards, and second level collector listens to the broadcast singal of forwarding and continues to forward; By that analogy until the network route number of plies reaches restriction;
Collectors at different levels deposit the network address of other collectors that listen in self neighbor table;
The next stage network address of concentrator using the network address of first order collector as concentrator deposits concentrator routing table in, and sends to the first order collector first order collector neighbor table request of obtaining;
First order collector sends to concentrator according to described request by its neighbor table, concentrator deposits as the next stage network address of the first order collector network address that belongs to second level collector in first order collector neighbor table in concentrator routing table, and sends to the second level collector second level collector neighbor table request of obtaining; By that analogy until the network address of all collectors that can be listened all deposits concentrator routing table in;
Concentrator sends networking signal according to concentrator routing table to each collector, and the collector that receives described networking broadcast singal feeds back networking confirmation signal to complete networking to described concentrator;
When the collector ratio networking reaches after set point, described concentrator sends networking unicast signal to the collector respectively also not networking successively, receives the collector of described networking clean culture networking signal to described concentrator feedback networking confirmation signal.
2. the method for claim 1, is characterized in that, also comprises the steps:
Described concentrator be the collector that networks distribute one No. ID, this collector can be according to the time sequencing of determining itself and described concentrator communication for this No. ID.
3. the method for claim 1, is characterized in that, also comprises the steps:
Described concentrator arranges some continuous times of section, within first time period, all channels are intercepted, if listen to the signal of the network that does not belong to this concentrator at certain channel, in the next time period, cancel intercepting this channel, by that analogy until after all time periods intercept, choose the minimum channel of RSSI value in the channel that remainder is listened as working channel.
4. the method for claim 1, is characterized in that, also comprises the steps:
Networking broadcast singal or the networking unicast signal of described collector to four channels intercepted, and after networking, selects the channel same with concentrator as working channel, and other channels are kept intercepting.
5. the method for claim 1, is characterized in that, also comprises the steps:
Also do not add the collector of described concentrator routing table by adding the collector broadcast networking request signal of described concentrator routing table.
6. the method for claim 1, is characterized in that, also comprises the steps:
Also do not add the collector of described concentrator routing table to intercept the message transmitting in the network of described concentrator, therefrom parse routing information, and select shortest path to send to described concentrator the request of networking.
7. a kilowatt meter reading-out system for wireless automatic relay networking, comprises concentrator and some grades of collectors; Described collector is connected with ammeter, for gathering ammeter data; Described concentrator and described collector wireless connections, the ammeter data gathering for concentrated each collector also sends to the center of checking meter; It is characterized in that:
Described concentrator is used for sending broadcast singal;
First order collector is used for intercepting this broadcast singal and forwards, and second level collector is for intercepting the broadcast singal of forwarding and continuing to forward; By that analogy until the network route number of plies reaches restriction;
Collectors at different levels are also for depositing the network address of other collectors that listen in self neighbor table;
Concentrator deposits concentrator routing table in for the next stage network address using the network address of first order collector as concentrator, and sends to the first order collector first order collector neighbor table request of obtaining;
First order collector is also for sending to concentrator according to described request by its neighbor table, concentrator also deposits concentrator routing table for the network address that first order collector neighbor table is belonged to second level collector in as the next stage network address of first order collector, and sends to the second level collector second level collector neighbor table request of obtaining; By that analogy until the network address of all collectors that can be listened all deposits concentrator routing table in;
Concentrator is also for sending networking broadcast singals according to the network address of each collector to all collectors, and collector is also for feed back networking confirmation signal to described concentrator when receive described networking broadcast singal, thereby completes networking;
Described concentrator also sends networking unicast signal to the collector respectively also not networking after reaching set point when the collector ratio networking, receive the collector of described networking clean culture networking signal for feeding back networking confirmation signal to described concentrator, thereby complete networking.
8. system as claimed in claim 7, is characterized in that, described concentrator be also used to the collector of networking distribute one No. ID, this collector can be according to the time sequencing of determining itself and described concentrator communication for this No. ID.
9. system as claimed in claim 7, it is characterized in that, described concentrator is also for arranging some continuous times of section, within first time period, all channels are intercepted, if listen to the signal of the network that does not belong to this concentrator at certain channel, in the next time period, cancel the intercepting of this channel, by that analogy until after all time periods intercept, choose the minimum channel of RSSI value in the channel that remainder is listened as working channel.
10. system as claimed in claim 7, is characterized in that, described collector is also intercepted all channels for timesharing before networking, selects the channel same with concentrator as working channel and select in addition at least two channels to intercept after networking.
11. systems as claimed in claim 7, is characterized in that, also do not add the collector of described concentrator routing table for the collector broadcast networking request signal by adding described concentrator routing table.
12. systems as claimed in claim 7, it is characterized in that, the message that does not also add the collector of described concentrator routing table to transmit for intercepting the network of described concentrator, therefrom parses routing information, and selects shortest path to send to described concentrator the request of networking.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410002042.9A CN103731193B (en) | 2014-01-02 | 2014-01-02 | The method and kilowatt meter reading-out system of wireless automatic relay networking |
| PCT/CN2014/070541 WO2015100794A1 (en) | 2014-01-02 | 2014-01-13 | Wireless automatic relay networking method and meter reading system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410002042.9A CN103731193B (en) | 2014-01-02 | 2014-01-02 | The method and kilowatt meter reading-out system of wireless automatic relay networking |
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| CN103731193A true CN103731193A (en) | 2014-04-16 |
| CN103731193B CN103731193B (en) | 2017-04-05 |
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| WO (1) | WO2015100794A1 (en) |
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| CN104168281A (en) * | 2014-08-21 | 2014-11-26 | 深圳市金正方科技股份有限公司 | Power line carrier ad-hoc network method, device and system |
| CN104168281B (en) * | 2014-08-21 | 2018-05-11 | 深圳市金正方科技股份有限公司 | Power line carrier ad hoc network, apparatus and system |
| CN104240476B (en) * | 2014-09-16 | 2017-11-07 | 北京天公瑞丰科技有限公司 | II type collectors based on TG Inwicos realize the method and system of telecommunication |
| CN104240476A (en) * | 2014-09-16 | 2014-12-24 | 北京天公瑞丰科技有限公司 | Method and system for realizing telecommunication of TG-Inwicos based II type collector |
| CN105590430A (en) * | 2014-10-23 | 2016-05-18 | 国家电网公司 | Multipath micropower wireless meter reading method and multipath micropower wireless meter reading system |
| CN105590430B (en) * | 2014-10-23 | 2019-02-15 | 国家电网公司 | A kind of multipath micropower wireless meter reading method and system |
| CN104661235B (en) * | 2015-02-10 | 2018-06-22 | 深圳市盛路物联通讯技术有限公司 | Network-building method and device |
| CN104661235A (en) * | 2015-02-10 | 2015-05-27 | 深圳市盈广现代网络设备有限公司 | Networking method and device |
| CN105139622A (en) * | 2015-09-17 | 2015-12-09 | 武汉瑞升科技有限公司 | Wireless meter reading system |
| CN105139622B (en) * | 2015-09-17 | 2019-11-08 | 武汉瑞升科技有限公司 | A kind of wireless meter reading method |
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| CN106230961A (en) * | 2016-08-11 | 2016-12-14 | 上海思妙物联网科技有限公司 | The lamp wireless roll-call quickly networking mode of networking |
| CN106603308A (en) * | 2017-01-03 | 2017-04-26 | 国网浙江省电力公司宁波供电公司 | Method and system for household meter dynamic registration and stage area identification |
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| CN107464412A (en) * | 2017-08-09 | 2017-12-12 | 国网浙江省电力公司 | A kind of electric energy meter event information copy reading method |
| CN109041022B (en) * | 2018-08-13 | 2021-08-27 | 海尔优家智能科技（北京）有限公司 | Network management method, Bluetooth module, medium and computer |
| CN109041022A (en) * | 2018-08-13 | 2018-12-18 | 海尔优家智能科技（北京）有限公司 | A kind of network management, bluetooth module, medium and computer |
| CN109215326A (en) * | 2018-08-14 | 2019-01-15 | 瑞斯康微电子（深圳）有限公司 | A kind of parallel meter register method and device |
| CN110719652A (en) * | 2019-01-16 | 2020-01-21 | 杭州承联通信技术有限公司 | Wireless ad hoc network method for mobile base station |
| CN110719652B (en) * | 2019-01-16 | 2022-09-16 | 杭州承联通信技术有限公司 | Wireless ad hoc network method for mobile base station |
| CN110611935B (en) * | 2019-09-27 | 2020-11-10 | 深圳市宏电技术股份有限公司 | Wireless transmission method and device |
| CN110611935A (en) * | 2019-09-27 | 2019-12-24 | 深圳市宏电技术股份有限公司 | Wireless transmission method and device |
| CN110912584A (en) * | 2019-12-03 | 2020-03-24 | 南京协胜智能科技有限公司 | Communication method of power carrier communication system |
| CN112802321A (en) * | 2020-10-27 | 2021-05-14 | 广东电网有限责任公司广州供电局 | Ammeter data acquisition method, device, equipment and storage medium |
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| CN114625034A (en) * | 2020-12-09 | 2022-06-14 | 中国科学院大连化学物理研究所 | Equipment control networking system |
| CN114625034B (en) * | 2020-12-09 | 2024-04-19 | 中国科学院大连化学物理研究所 | Equipment control networking system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015100794A1 (en) | 2015-07-09 |
| CN103731193B (en) | 2017-04-05 |
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