CN102881145A - Adaptor and data transmission method used for adaptor - Google Patents
Adaptor and data transmission method used for adaptor Download PDFInfo
- Publication number
- CN102881145A CN102881145A CN2012103214802A CN201210321480A CN102881145A CN 102881145 A CN102881145 A CN 102881145A CN 2012103214802 A CN2012103214802 A CN 2012103214802A CN 201210321480 A CN201210321480 A CN 201210321480A CN 102881145 A CN102881145 A CN 102881145A
- Authority
- CN
- China
- Prior art keywords
- module
- communication module
- communication
- sends
- data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses an adaptor and a data transmission method used for the adaptor. The adaptor comprises a downlink communication module which is connected with intelligent substation equipment or an ammeter terminal, an uplink communication module which is connected with a management center, and a microprocessor module which is connected with both the uplink communication module and the downlink communication module; the microprocessor module is used for transmitting communication instructions to the downlink communication module, receiving data of the substation equipment or the ammeter terminal obtained by the downlink communication module according to the communication instructions, and transmitting the received data to the uplink communication module; and the received data are transmitted to the management center through an Ethernet interface of the uplink communication module. With the adoption of the adaptor, the phenomenon of communication interruption caused by technical problems of the GPRS (general packet radio service) in the prior art is solved.
Description
Technical field
The present invention relates to the power communication field, relate in particular to a kind of adapter towards electrical network and be applied to the data transmission method of adapter.
Background technology
Along with the intelligentized fast development of electrical network, computer communication technology, the intelligent instrumentation with remote communicating function and intelligent substation equipment are used widely in electrical network, use Industrial Ethernet technology, intelligent instrumentation and out of Memory technology, set up real-time monitoring system, to intelligent instrumentation, substation equipment realize detecting, control, management and scheduling, increase reliability, reduce purposes such as consuming, guarantee safety thereby reach.
At present, the bridge that generally all uses collector to communicate by letter with intelligent substation equipment or ammeter terminal device as administrative center, collector sends to far-end computer administrative center with the data of collection in the mode of GPRS.Because some technical matterss that GPRS itself exists, such as: the working temperature of GPRS chip, the humidity of site environment and temperature, unstable, the problems such as the signal power of GPRS own is inconsistent, Information Mobile Service main station failure of GPRS draw-in groove contact, cause the communication quality of intelligent substation equipment or ammeter terminal device and administrative center unstable, even interrupt, thereby the Information Statistics of carrying out electric system that can not be real-time.
Summary of the invention
In view of this, the invention provides a kind of adapter and be applied to the data transmission method of adapter, cause the phenomenon of communication disruption with the problem that solves GPRS itself in the prior art, its concrete scheme is as follows:
A kind of adapter comprises:
The downlink communication module that links to each other with intelligent substation equipment or ammeter terminal, the uplink communication module that links to each other with administrative center, the microprocessor module that links to each other respectively with described uplink communication module and downlink communication module;
Described microprocessor module sends communication instruction to described downlink communication module;
Described downlink communication module is obtained the data of described intelligent substation equipment or ammeter terminal according to described communication instruction, and sends to described microprocessor module;
Described microprocessor module receives the data that described downlink communication module sends, and received data are sent to described uplink communication module;
Described uplink communication module receives the data that described microprocessor module sends, and sends to described administrative center by Ethernet interface.
Described downlink communication module comprises: Power Line Carrier Communication Module,
Described Power Line Carrier Communication Module receives the communication instruction that described micro controller module sends, send described communication instruction to described intelligent substation equipment or ammeter terminal by line of electric force, receive the data on the described line of electric force, be sent to described microprocessor module.
Described microprocessor module comprises: the first sending module, and receiver module and the second sending module,
Described the first sending module sends communication instruction to described downlink communication module;
Described the first receiver module receives the communication data that described downlink communication module sends;
Described the second sending module sends described communication data to described uplink communication module.
The Ethernet interface of described uplink communication module comprises: standard ethernet interface and/or fiber optic Ethernet interface.
Described downlink communication module also comprises: serial communication module,
Described serial communication module receives the communication instruction that described microprocessor module sends, be sent to intelligent substation equipment or ammeter terminal with serial communication interface in differential mode, receive with the intelligent substation equipment of serial communication interface or the data of ammeter terminal transmission in differential mode, be sent to described microprocessor module.
Described downlink communication module also comprises: wireless communication module,
Described wireless communication module receives the communication instruction that described microprocessor module sends, be sent to intelligent substation equipment or the ammeter terminal of wireless telecommunications with serial mode, receive the intelligent substation equipment of wireless telecommunications or the data that the ammeter terminal sends with serial mode, be sent to described microprocessor module.
Described wireless communication module comprises: 2.4G wireless communication module, 433M wireless communication module.
Described microprocessor module also comprises: the second receiver module,
Described the second receiver module receives the communication instruction that the uplink communication module sends, and sends to described the first sending module.
Described downlink communication module also is used for, and the signal that receives is carried out analog to digital conversion, and sends, and described microprocessor module also comprises: processing module,
Described processing module is carried out digital-to-analog conversion with the communication data that receives, and sends.
A kind of data transmission method is applied to adapter, and described adapter comprises: the downlink communication module, and the uplink communication module that links to each other with administrative center, with the microprocessor module that described uplink communication module and downlink communication module link to each other respectively, the method comprises:
Microprocessor module sends communication instruction to the downlink communication module; Receive substation equipment that described downlink communication module obtains according to described communication instruction or the data of ammeter terminal; Received data are sent to the uplink communication module, and the Ethernet interface that the described data communication device that receives is crossed described uplink communication module sends to administrative center.
Can find out from technique scheme, adapter disclosed by the invention is communicated by letter with administrative center by the uplink communication module, downlink communication module and intelligent substation equipment or ammeter terminal communication, the uplink communication module links to each other by microprocessor module with the downlink communication module, the present invention has solved in the prior art bridge of adapter as administrative center and intelligent substation equipment or ammeter terminal communication because the phenomenon of the communication disruption that the technical matters that GPRS itself exists causes.Further, realized information interaction between administrative center and intelligent substation equipment or the ammeter terminal.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the disclosed a kind of adapter of the embodiment of the invention;
Fig. 2 is the basic flow sheet of the disclosed a kind of adapter of the embodiment of the invention;
Fig. 3 is the structural representation of the microprocessor module of the disclosed a kind of adapter of the embodiment of the invention;
Fig. 4 is the basic flow sheet of the disclosed a kind of adapter of the embodiment of the invention;
Fig. 5 is the structural representation of the downlink communication module of the disclosed a kind of adapter of the embodiment of the invention;
Fig. 6 is the structural representation of the uplink communication module of the disclosed a kind of adapter of the embodiment of the invention;
Fig. 7 is the disclosed a kind of data transmission method that is applied to adapter of the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The structural representation of a kind of adapter disclosed by the invention comprises as shown in Figure 1:
Wherein, described downlink communication module 11 links to each other with intelligent substation equipment or ammeter terminal, link to each other with described microprocessor module 13 simultaneously, described microprocessor module 13 links to each other with described uplink communication module 12, and described uplink communication module 12 links to each other with administrative center simultaneously.
Fig. 2 is the basic flow sheet of the above embodiment of the present invention, comprising:
Step S21, described microprocessor module send communication instruction to described downlink communication module;
Step S22, described downlink communication module are obtained the data of described intelligent substation equipment or ammeter terminal according to described communication instruction;
Step S23, described downlink communication module send to described microprocessor module with the data that get access to;
Step S24, described microprocessor module receive the data that described downlink communication module sends;
Step S25, described microprocessor module send to described uplink communication module with the data that receive;
Step S26, described uplink communication module receive the data that described microprocessor module sends;
Step S27, described uplink communication module are crossed Ethernet interface with the data communication device that receives and are sent to described administrative center.
The disclosed adapter of present embodiment, communicate by letter with administrative center by the uplink communication module, downlink communication module and intelligent substation equipment or ammeter terminal communication, the uplink communication module links to each other by microprocessor module with the downlink communication module, among the present invention, adapter is as the bridge of administrative center and intelligent substation equipment or ammeter terminal communication, solved the GPRS unsettled phenomenon of communicating by letter, and reaches the unbroken beneficial effect of the transmission of data.
The structural representation of the microprocessor module of a kind of adapter disclosed by the invention comprises as shown in Figure 3:
The first sending module 31, the first receiver modules 32, the second sending modules 33.
Described the first sending module 31 sends communication instruction to described downlink communication module, and described the first receiver module 32 receives the communication data that described downlink communication module sends, and described the second sending module 33 sends described communication data to described uplink communication module.
Further, described microprocessor module also comprises the second receiver module 34, and described the second receiver module receives the communication instruction that the uplink communication module sends, and sends to described the first sending module.
Further, when described downlink communication module is carried out analog to digital conversion with the signal that receives, and when sending, described microprocessor module also comprises processing module 35, and described processing module 35 is carried out digital-to-analog conversion with the communication data that receives, and sends.
Present embodiment discloses a kind of microprocessor module of adapter, has comprised the first sending module, receiver module and the second sending module, by the inner structure of microprocessor module, has realized the sending and receiving of adapter to communication instruction.In addition, increase by the second receiver module, realized that administrative center sends the process of instruction by the uplink communication module to microprocessor module, thus realized information between administrative center and intelligent substation equipment or the ammeter terminal alternately.In addition, increase processing module, make the communication data after described downlink communication module or uplink communication module can accurately be identified described processing.
Fig. 4 is the basic flow sheet that comprises the adapter of the disclosed microprocessor module of above-described embodiment among the present invention, comprising:
The communication instruction that step S41, described uplink communication module receiving management center send;
Step S42, described uplink communication module send described communication instruction to described the second receiver module;
Step S43, described the second receiver module receive described communication instruction, send to described the first sending module;
Step S44, described the first sending module receive described communication instruction, and are sent to described downlink communication module;
Step S45, described downlink communication module receive described communication instruction, obtain the data of described substation equipment or ammeter terminal according to described communication instruction;
Step S46, described downlink communication module are sent to described the first receiver module with the data of described substation equipment or ammeter terminal;
Step S47, described the first receiver module are sent to described the second sending module with the data that receive;
Step S48, described the second sending module receive described data, and the described data that receive are sent to described uplink communication module;
Step S49, described uplink communication module receive described data, and the data that receive are sent to described administrative center.
The disclosed adapter of present embodiment, by increasing by the second receiver module in the microprocessor module, thereby realized that administrative center by communicating by letter between uplink communication module and the microprocessor module, has realized the information interaction between administrative center and intelligent substation equipment or the ammeter terminal.
The structural representation of the downlink communication module of a kind of adapter disclosed by the invention comprises as shown in Figure 5:
Power Line Carrier Communication Module 51, serial communication module 52, wireless communication module 53.
Described Power Line Carrier Communication Module 51 receives the communication instruction that described microprocessor module sends, send described communication instruction to described intelligent substation equipment or ammeter terminal by line of electric force, receive the data on the described line of electric force, be sent to described microprocessor module;
Described serial communication module 52 receives the communication instruction that described microprocessor module sends, be sent to intelligent substation equipment or ammeter terminal with serial line interface in differential mode, receive with the intelligent substation equipment of serial communication interface or the data of ammeter terminal transmission in differential mode, be sent to described microprocessor module.
Described wireless communication module 53 receives the communication instruction that described microprocessor module sends, be sent to intelligent substation equipment or the ammeter terminal of radio communication with serial mode, receive the intelligent substation equipment of radio communication or the data that the ammeter terminal sends with serial mode, be sent to described microprocessor module.
Several communication modes of the disclosed downlink communication module of present embodiment, 3 kinds of being not limited to describe among the embodiment can be the combination of wherein any several communication modes.
Further, described wireless communication module 53 comprises: 2.4G wireless communication module 531,433M wireless communication module 532.
Present embodiment discloses the structure of downlink communication module, comprised Power Line Carrier Communication Module, serial communication module and wireless communication module, three kinds of different communication modules have realized the transmission to the data of the intelligent substation equipment of distinct interface or ammeter terminal, satisfied the diversity demand of communication mode, to reach the effect of better the transmission of data.
The structural representation of the uplink communication module of the disclosed a kind of adapter of the embodiment of the invention comprises as shown in Figure 6:
Ethernet interface integrated on the described uplink communication module carries out the United Dispatching management with each module in the downlink communication module, and the data that will send by the Ethernet interface microprocessor module send to administrative center, realize data transfer; When there was the second receiver module in microprocessor module, Ethernet interface was when receiving the data that microprocessor module sends, and the data that also can the transfer management center send are carried out the mutual of data to described microprocessor module.
The uplink communication module of the disclosed a kind of adapter of present embodiment realizes data transfer by Ethernet interface, has solved the phenomenon of communication disruption in the data transfer that causes by GPRS transmission data in the prior art.In addition, the communication of fiber optic Ethernet Interface realization has the distance of connection, transmission speed is fast, transmission is stable and interference-free advantage.
Two kinds of Ethernet interfaces that the disclosed described uplink communication module of present embodiment comprises are not limited to two kinds of simultaneous phenomenons of interface in the present embodiment, also can be that in two kinds of interfaces any one is present in the uplink communication module.
A kind of data transmission method that is applied to adapter disclosed by the invention, step comprises as shown in Figure 7:
Step S71, described microprocessor module send communication instruction to described downlink communication module;
Step S72, described downlink communication module are obtained the data of described intelligent substation equipment or ammeter terminal according to described communication instruction;
Step S73, described downlink communication module send to described microprocessor module with the data that get access to;
Step S74, described microprocessor module receive the data that described downlink communication module sends;
Step S75, described microprocessor module send to described uplink communication module with the data that receive;
Step S76, described uplink communication module receive the data that described microprocessor module sends;
Step S77, described uplink communication module are crossed Ethernet interface with the data communication device that receives and are sent to described administrative center.
The disclosed data transmission method that is applied to adapter of present embodiment, communicate by letter with administrative center by the uplink communication module, downlink communication module and intelligent substation equipment or ammeter terminal communication, uplink communication module and downlink communication module communicate by microprocessor module, in this method, be applied to the data transmission method of adapter, solved the GPRS unsettled phenomenon of communicating by letter, reach that transmission is stable, the unbroken beneficial effect of data.
Each embodiment adopts the mode of going forward one by one to describe in this instructions, and what each embodiment stressed is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For the disclosed device of embodiment, because it is corresponding with the disclosed method of embodiment, so description is fairly simple, relevant part partly illustrates referring to method and gets final product.
The professional can also further recognize, unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software clearly is described, composition and the step of each example described in general manner according to function in the above description.These functions are carried out with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.The professional and technical personnel can specifically should be used for realizing described function with distinct methods to each, but this realization should not thought and exceeds scope of the present invention.
The method of describing in conjunction with embodiment disclosed herein or the step of algorithm can directly use the software module of hardware, processor execution, and perhaps the combination of the two is implemented.Software module can place the storage medium of any other form known in random access memory (RAM), internal memory, ROM (read-only memory) (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or the technical field.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can in the situation that does not break away from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. adapter, it is characterized in that, comprise: the downlink communication module that links to each other with intelligent substation equipment or ammeter terminal, the uplink communication module that links to each other with administrative center, the microprocessor module that links to each other respectively with described uplink communication module and downlink communication module;
Described microprocessor module sends communication instruction to described downlink communication module;
Described downlink communication module is obtained the data of described intelligent substation equipment or ammeter terminal according to described communication instruction, and sends to described microprocessor module;
Described microprocessor module receives the data that described downlink communication module sends, and received data are sent to described uplink communication module;
Described uplink communication module receives the data that described microprocessor module sends, and sends to described administrative center by Ethernet interface.
2. adapter according to claim 1 is characterized in that, described downlink communication module comprises: Power Line Carrier Communication Module,
Described Power Line Carrier Communication Module receives the communication instruction that described micro controller module sends, send described communication instruction to described intelligent substation equipment or ammeter terminal by line of electric force, receive the data on the described line of electric force, be sent to described microprocessor module.
3. adapter according to claim 1 is characterized in that, described microprocessor module comprises: the first sending module, and receiver module and the second sending module,
Described the first sending module sends communication instruction to described downlink communication module;
Described the first receiver module receives the communication data that described downlink communication module sends;
Described the second sending module sends described communication data to described uplink communication module.
4. adapter according to claim 1 is characterized in that, the Ethernet interface of described uplink communication module comprises: standard ethernet interface and/or fiber optic Ethernet interface.
5. adapter according to claim 2 is characterized in that, described downlink communication module also comprises: serial communication module,
Described serial communication module receives the communication instruction that described microprocessor module sends, be sent to intelligent substation equipment or ammeter terminal with serial communication interface in differential mode, receive with the intelligent substation equipment of serial communication interface or the data of ammeter terminal transmission in differential mode, be sent to described microprocessor module.
6. adapter according to claim 5 is characterized in that, described downlink communication module also comprises: wireless communication module,
Described wireless communication module receives the communication instruction that described microprocessor module sends, be sent to intelligent substation equipment or the ammeter terminal of radio communication with serial mode, receive the intelligent substation equipment of radio communication or the data that the ammeter terminal sends with serial mode, be sent to described microprocessor module.
7. adapter according to claim 6 is characterized in that, described wireless communication module comprises: 2.4G wireless communication module, 433M wireless communication module.
8. adapter according to claim 3 is characterized in that, described microprocessor module also comprises: the second receiver module,
Described the second receiver module receives the communication instruction that the uplink communication module sends, and sends to described the first sending module.
9. adapter according to claim 3 is characterized in that, described downlink communication module also is used for, and the signal that receives is carried out analog to digital conversion, and sends, and described microprocessor module also comprises: processing module,
Described processing module is carried out digital-to-analog conversion with the communication data that receives, and sends.
10. a data transmission method is characterized in that, is applied to adapter, described adapter comprises: the downlink communication module, the uplink communication module that links to each other with administrative center, with the microprocessor module that described uplink communication module and downlink communication module link to each other respectively, the method comprises:
Microprocessor module sends communication instruction to the downlink communication module; Receive substation equipment that described downlink communication module obtains according to described communication instruction or the data of ammeter terminal; Received data are sent to the uplink communication module, and the Ethernet interface that the described data communication device that receives is crossed described uplink communication module sends to administrative center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103214802A CN102881145A (en) | 2012-09-03 | 2012-09-03 | Adaptor and data transmission method used for adaptor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103214802A CN102881145A (en) | 2012-09-03 | 2012-09-03 | Adaptor and data transmission method used for adaptor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102881145A true CN102881145A (en) | 2013-01-16 |
Family
ID=47482451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103214802A Pending CN102881145A (en) | 2012-09-03 | 2012-09-03 | Adaptor and data transmission method used for adaptor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102881145A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490994A (en) * | 2013-09-09 | 2014-01-01 | 北京康力昆泰电力技术有限公司 | Bimodule communication protocol conversion device and work procedure thereof |
| CN103941060A (en) * | 2014-05-16 | 2014-07-23 | 国家电网公司 | Connection terminal box and connector |
| CN103954803A (en) * | 2014-05-16 | 2014-07-30 | 国家电网公司 | Communication adapter and connector |
| CN104378175A (en) * | 2014-11-13 | 2015-02-25 | 国家电网公司 | High speed and low speed communication compatible system and method in electricity information acquisition system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101008847A (en) * | 2007-01-19 | 2007-08-01 | 华南理工大学 | Collecting and controlling device for date of environmental protection with multiple network interface based on two-level architecture |
| CN201946105U (en) * | 2010-11-22 | 2011-08-24 | 郑州春泉暖通节能设备有限公司 | Multi-port direct-reading type meter reading device |
-
2012
- 2012-09-03 CN CN2012103214802A patent/CN102881145A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101008847A (en) * | 2007-01-19 | 2007-08-01 | 华南理工大学 | Collecting and controlling device for date of environmental protection with multiple network interface based on two-level architecture |
| CN201946105U (en) * | 2010-11-22 | 2011-08-24 | 郑州春泉暖通节能设备有限公司 | Multi-port direct-reading type meter reading device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490994A (en) * | 2013-09-09 | 2014-01-01 | 北京康力昆泰电力技术有限公司 | Bimodule communication protocol conversion device and work procedure thereof |
| CN103490994B (en) * | 2013-09-09 | 2018-09-14 | 北京康力昆泰电力技术有限公司 | Dual mode communication protocol conversion device |
| CN103941060A (en) * | 2014-05-16 | 2014-07-23 | 国家电网公司 | Connection terminal box and connector |
| CN103954803A (en) * | 2014-05-16 | 2014-07-30 | 国家电网公司 | Communication adapter and connector |
| CN104378175A (en) * | 2014-11-13 | 2015-02-25 | 国家电网公司 | High speed and low speed communication compatible system and method in electricity information acquisition system |
| CN104378175B (en) * | 2014-11-13 | 2017-07-25 | 国家电网公司 | The power information acquisition system high speed system and method compatible with low-speed communication |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101924391B (en) | Electric distribution network feeder automation system based on wireless ad hoc network and networking method thereof | |
| CN103812710B (en) | Power communication communication terminal special | |
| CN201839319U (en) | Plc remote diagnosis control system | |
| CN102881145A (en) | Adaptor and data transmission method used for adaptor | |
| CN110854798A (en) | Differential relay protection communication device, system and method based on 5G communication | |
| CN201536427U (en) | Integrated base station antenna system | |
| CN102739290A (en) | Interactive terminal with power line carrier communication access function | |
| CN105791031A (en) | Data acquisition and transmitting method | |
| CN207319431U (en) | A kind of intelligent meter data recording system based on NB-IoT | |
| CN102404202A (en) | Power grid data processing method and device | |
| CN102695301B (en) | 230 MHz wireless communication speed self-adaptive designed-to-change collection terminal | |
| CN202794434U (en) | Digitalizing fault location positioning system of power distribution network based on zigbee and general packet radio service (GPRS) technology | |
| CN218772125U (en) | EdgeHub edge gateway | |
| CN202160286U (en) | Distributed base station | |
| CN202503533U (en) | Network monitoring device based on WLAN (wireless local area network) technology | |
| CN101848146A (en) | Communication device and method based on multiple communication modes and link aggregation devices | |
| CN201976131U (en) | Multi-interface data communication concentrator of automatic weather station | |
| CN202856740U (en) | Multi-mode on-site emergency communication system | |
| CN205647567U (en) | Thing networking gateway and thing communication network system | |
| CN102832972A (en) | Power line communication system and method | |
| CN102568179A (en) | Two-channel wireless transmission power monitoring system and monitoring method thereof | |
| CN201829936U (en) | Centralized control system of mine explosion-proof and intrinsic safety type combined switch | |
| CN110912971A (en) | AGV dolly real-time monitoring system | |
| CN205315047U (en) | Coal mine monitoring device based on ROF technique | |
| CN203397502U (en) | Monitoring system for power distribution equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130116 |