CN106485904A - The gas meter, flow meter of the Internet of Things sensing module that application information is processed - Google Patents
The gas meter, flow meter of the Internet of Things sensing module that application information is processed Download PDFInfo
- Publication number
- CN106485904A CN106485904A CN201611035707.1A CN201611035707A CN106485904A CN 106485904 A CN106485904 A CN 106485904A CN 201611035707 A CN201611035707 A CN 201611035707A CN 106485904 A CN106485904 A CN 106485904A
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- Prior art keywords
- information
- internet
- sensing module
- processed
- things sensing
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/06—Indicating or recording devices
- G01F15/061—Indicating or recording devices for remote indication
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
Abstract
The present invention relates to Internet of Things field, the gas meter, flow meter of the Internet of Things sensing module that specifically related to a kind of application information is processed, the gas meter, flow meter of the Internet of Things sensing module that described application information is processed includes antenna, information is processed Internet of Things sensing module and sensing module, the Internet of Things sensing module that this information is processed includes Internet of Things sensing unit and information process unit, the Internet of Things sensing module that information is processed is connected with antenna, sensing module, and described Internet of Things sensing unit includes communication unit and gateway.The present invention provides gas meter, flow meter to pass through integrated communicaton unit and gateway in the Internet of Things sensing module that information is processed, and has the function that communication function, gateway function and perception information are processed simultaneously, decreases installation procedure, makes module miniaturization, saves space.
Description
Technical field
The present invention relates to Internet of Things field, the Internet of Things sensing module processing in particular to a kind of application information
Gas meter, flow meter.
Background technology
Developing rapidly with Internet technology, the global tide of IT application has attacked.At present, various countries worldwide is all
In the positive construction carrying out Internet of Things field, using Internet of Things as new growth engines.Internet of Things is as more emerging
Industry, has relatively broad application prospect in every field, is such as applied to gas meter, flow meter, and the gas meter, flow meter of application Internet of Things compares biography
System gas meter, flow meter is more intelligent, more convenient to use.But the modules due to Internet of Things also have lifting and improved space,
Such as in heat transfer agent transmission, existing transfer mode needs transmitted by multiple modules, the function of individual module
More single, waste of resource, the gas meter, flow meter manufacturing cost of therefore application Internet of Things is high, installation procedure is complicated.
Content of the invention
In view of this, the purpose of the embodiment of the present invention is the Internet of Things sensing module providing a kind of application information to process
Gas meter, flow meter, to improve above-mentioned problem.
Embodiments provide the Internet of Things sensing module that a kind of application information is processed, at described application information
The gas meter, flow meter of the Internet of Things sensing module of reason includes antenna, information is processed Internet of Things sensing module and sensing module, institute
The Internet of Things sensing module stating base-band information process includes Internet of Things sensing unit and information process unit, and described information is processed
Internet of Things sensing module be all connected with antenna, sensing module, described Internet of Things sensing unit includes communication unit and gateway.
Further, the gas meter, flow meter of the Internet of Things sensing module that application information is processed also includes control module, described band
It is connected with control module described in the Internet of Things sensing module of information processing, described information processing unit is used for receiving described perception
The perception information of module transfer, described perception information is converted to the communication information and is passed the communication information by described communication unit
It is defeated by described gateway；Or for receiving the communication information of described communication unit transmission, by the communication of described communication unit transmission
Information is converted to control information, and control information is transferred to described control module, and described control module controls letter according to described
Breath controls the working condition of described gas meter, flow meter.
Further, described perception information includes gas flow, gas-time and gaseous-pressure, described control information
Including pass valve instruction, lock instruction and alarm command.
Further, described communication unit is used for transmitting the communication information of described information processing unit transmission to described net
Close, or the communication information after described gateway processes is transmitted to described information processing unit.
Further, described gateway is used for locating the communication information of the transmission of communication unit described in reason, and logical after processing
Letter information transmits to described antenna；Or for locating the communication information of antenna transmission described in reason, and the communication letter after processing
Breath transmits to described communication unit.
Further, the Internet of Things sensing module that the described information based on broadband connections is processed also includes peripheral circuit.
Further, described communication unit and described gateway are integrated in a chip, are integrated, and described Internet of Things passes
Sense unit is provided simultaneously with the communication function of communication unit and the information processing function of described gateway.
Further, described communication unit and described gateway are provided separately.
Further, described communication unit adopts broadband connections.
Further, described communication unit adopts narrow band communication.
Compared to existing technology, the invention has the advantages that：
Embodiments provide a kind of gas meter, flow meter of the Internet of Things sensing module that application information is processed, described application
The gas meter, flow meter of the Internet of Things module that information is processed includes Internet of Things module, sensing module and the antenna of information process, institute
The Internet of Things module stating information process includes Internet of Things sensing unit and information process unit, the Internet of Things that this information is processed
Sensing module is connected with antenna, sensing module, and described Internet of Things sensing unit includes communication unit and gateway.The present invention provides
Application information process Internet of Things sensing module gas meter, flow meter pass through in Internet of Things sensing module integrated communicaton unit and
Gateway, makes gas meter, flow meter be provided with the function that communication function, gateway function and perception information are processed simultaneously, decreases installation procedure,
Make module miniaturization, save space, reduce production cost and after cost.
For enabling the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Brief description
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be attached to use required in embodiment
Figure is briefly described it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, and it is right to be therefore not construed as
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is the knot of the gas meter, flow meter of Internet of Things sensing module that the application information that present pre-ferred embodiments provide is processed
Structure schematic diagram.
Fig. 2 is the work of the gas meter, flow meter of Internet of Things sensing module that the application information that present pre-ferred embodiments provide is processed
Make schematic flow sheet.
Fig. 3 is the group of the gas meter, flow meter of Internet of Things sensing module that the application information that present pre-ferred embodiments provide is processed
Become schematic diagram.
Fig. 4 is the work of the gas meter, flow meter of Internet of Things sensing module that the application information that present pre-ferred embodiments provide is processed
Make schematic flow sheet.
Fig. 5 is net in the gas meter, flow meter of Internet of Things sensing module that the application information that present pre-ferred embodiments provide is processed
The structural representation closing.
Icon：The gas meter, flow meter of the Internet of Things sensing module that 400- application information is processed；The Internet of Things that 100- information is processed
Net sensing module；10- Internet of Things sensing unit；11- communication unit；12- gateway；121- main control unit；122- device configuration list
Unit；123- communication protocol adaptation unit；124- identifies administrative unit；125- state managing unit；126- safe unit；During 127-
Clock lock unit；128- capability management unit；129- service protocol adaptation unit；130- service application unit；20- information processing
Unit；30- antenna；40- peripheral circuit；200- sensing module；300- control module.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described it is clear that described embodiment is
The a part of embodiment of the present invention, rather than whole embodiments.The present invention generally described and illustrated in accompanying drawing herein is implemented
The assembly of example can be arranged with various different configurations and design.
Therefore, below the detailed description of the embodiments of the invention providing in the accompanying drawings is not intended to limit claimed
The scope of the present invention, but be merely representative of the selected embodiment of the present invention.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of not making creative work, broadly falls into the model of present invention protection
Enclose.
It should be noted that：Similar label and letter represent similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then do not need it to be defined further and explains in subsequent accompanying drawing.
Refer to Fig. 1, Fig. 1 is the combustion gas of the Internet of Things sensing module that application information provided in an embodiment of the present invention is processed
The structural representation of table 400, the gas meter, flow meter 400 of the Internet of Things sensing module that application information is processed includes antenna 30, information
The Internet of Things sensing module 100 processing and sensing module 200, the Internet of Things sensing module 100 that information is processed includes Internet of Things
Net sensing unit 10 and information process unit 20.Internet of Things sensing module 100 and sensing module that information with communication is processed
200 and antenna 30 be all connected with.This Internet of Things sensing unit 10 includes communication unit 11 and gateway 12, in the present embodiment, communication
Unit 11 and gateway 12 can integrate it is also possible to be provided separately.For example, communication unit 11 and gateway 12 can be integrated in
In one chip, it is integrated, now, the form of communication unit 11 and gateway 1,200,000,000 software function module is realized integrated；Communication
Unit 11 and gateway 12 can also be separately positioned in different chips, be then fitted on a circuit board, the present embodiment is to this
Do not limit.Communication unit 11 is the communication unit 11 using broadband connections, in the present embodiment, with communication unit 11 by network
Access speed is 64Kbps (maximum speed of download is 8kb/s) and its above network access mode is referred to as broadband, conversely, referred to as
Arrowband.It should be noted that sensing module 200 can be various sensors, such as flow transducer, timer or pressure transducer
Deng.
Refer to Fig. 2, information process unit 20 is used for from sensing module 200 receive information, and this information is sensing module 200
The perception information of perception, specifically, when realizing gas meter, flow meter gas leakage cut-out warning function, this perception information can include firing
Throughput and gas-time；When realizing hypertonia cut-out warning function, this perception information can be the gas pressure of gas meter, flow meter
The related information such as power, perception information is converted to the communication information and sends out the communication information being converted to by information process unit 20
Deliver to communication unit 11, communication unit 11 is used for receiving the communication information from information process unit 20.Gateway 12 is used for locating reason letter
It is ensured that the safety of the communication information, effectiveness and real-time, gateway 12 has processed logical the communication information that breath processing unit 20 sends
After letter information, the communication information after processing is sent to antenna 30, to be sent the communication information by antenna 30.
Refer to Fig. 3, the gas meter, flow meter 400 of the Internet of Things sensing module that application information provided in an embodiment of the present invention is processed
In information process Internet of Things sensing module 100 also include peripheral circuit 40, peripheral circuit 40 can include but is not limited to
Power supply circuits, control circuit, key circuit, display circuit etc..Information process Internet of Things sensing module 100 also with control mould
Block 300 is connected.Refer to Fig. 4, gateway 12 is additionally operable to the communication information of reception antenna 30 transmission, this communication information can include
Control information, specifically, control information can include various control instructions, such as closes valve instruction, alarm command and lock instruction
Deng, receive antenna 30 transmission rf data after, the communication information that gateway 12 sends to antenna 30 is processed and will be processed
The communication information afterwards sends to communication unit 11, and the communication information after gateway 12 is processed by communication unit 11 sends to information processing
Unit 20, information process unit 20 is additionally operable to the communication information is converted to control information and sends control information to control module
300, execute corresponding control command in order to control module 300, control module 300 controls application information according to control information
The working condition of the gas meter, flow meter 400 of Internet of Things sensing module processing.Specifically, control module 300 executes according to control information
Corresponding control command, and then control the working condition of the gas meter, flow meter 400 of Internet of Things sensing module of application information process, example
As control module 300 controls the gas meter, flow meter 400 of the Internet of Things sensing module of this application information process according to pass valve command information
Valve closing or open, and then close application information process Internet of Things sensing module gas meter, flow meter 400.
Refer to Fig. 5, be the structural representation of gateway 12 provided in an embodiment of the present invention, gateway 12 includes main control unit
121st, device configuration unit 122, communication protocol adaptation unit 123, mark administrative unit 124, state managing unit 125, safety
Unit 126, clock synchronization unit 127, capability management unit 128, service protocol adaptation unit 129 and service application unit 130.
Device configuration unit 122, communication protocol adaptation unit 123, mark administrative unit 124, state managing unit 125, safe unit
126th, clock synchronization unit 127, capability management unit 128, service protocol adaptation unit 129 and service application unit 130 all with
Main control unit 121 communicates.
Wherein, main control unit 121 is used for receiving and send request instruction, control instruction and business datum.Specifically, master control
Unit 121 can receive the gas meter, flow meter 400 of Internet of Things sensing module that application information processes, the remote platform in Internet of Things, net
Close 12 each unit, other equipment rule or instant request instruction and business datum, can to application information process thing
Remote platform in the networking gas meter, flow meter 400 of sensing module, Internet of Things, each unit of gateway 12, other equipment rule or i.e.
When transmission control instruction and business datum.Can receive converted remote platform regularly or immediately issue control instruction and
Business datum, and change the gas meter, flow meter 400 sending to the Internet of Things sensing module applying information to process, can receive converted
The data that the gas meter, flow meter 400 of the Internet of Things sensing module that application information is processed regularly or immediately reports, and converted
Deliver to remote platform.
Device configuration unit 122 is used for receiving the control command of main control unit 121 transmission and uploads to main control unit 121
Request instruction.
Communication protocol adaptation unit 123 is used for the lattice of the control instruction and service data information issuing main control unit 121
Formula is converted to the form that can receive of gas meter, flow meter 400 of the Internet of Things sensing module that application information is processed, and for should
Request instruction and the form conversion of service data information that the gas meter, flow meter 400 of the Internet of Things sensing module being processed with information sends
The form that can receive for main control unit 121.
Mark administrative unit 124 is used for transmission and is obtained by a remote platform or identify administrative unit 124 via main control unit
The request instruction of 121 identification informations of gas meter, flow meter 400 of Internet of Things sensing module obtaining gateway 12 or application information process,
Acceptable main control unit 121 is handed down to mark administrative unit 124 or the control instruction of other units, can be on main control unit 121
Pass mark administrative unit 124 or other units control instruction or request instruction.
State managing unit 125 is used for transmitting the request instruction of the status information of equipment of gateway 12 of remote platform acquisition,
And the request instruction of the status information of service application of transmission remote platform acquisition, and upload gateway 12 to remote platform
Status information of equipment instructs, and the status information instruction of the service application uploading to remote platform.
Safe unit 126 is used for receiving the security control instruction that main control unit 121 issues, and on main control unit 121
Pass security request instruction.
Clock synchronization unit 127 is used for receiving the clock synchronic command that main control unit 121 issues and to main control unit 121
Upload request synchronic command.
Capability management unit 128 is used for transmitting the control instruction of automatic detection and maintenance to main control unit 121, and transmission
The request instruction of the performance data of gateway 12 being obtained by remote platform, and the performance parameter of collection main control unit 121.
The form that service protocol adaptation unit 129 is used for the control instruction and service data information issuing remote platform turns
It is changed to the form that main control unit 121 can receive, and request instruction that main control unit 121 is uploaded and service data information
Form is converted to the form that remote platform can receive.
Service application unit 130 is used for the application program within gateway 12 is managed, load including application, install,
Monitor, unload, enable, disable, upgrade.
The gas meter, flow meter of the Internet of Things sensing module that application information provided in an embodiment of the present invention is processed includes antenna, takes a message
Internet of Things sensing module and sensing module that breath is processed, it is single that the Internet of Things sensing module that information is processed includes Internet of Things sensing
Unit and information process unit, the Internet of Things sensing module that described information is processed is all connected with antenna, sensing module, described Internet of Things
Net sensing unit integrated inclusion communication unit and gateway.The Internet of Things sensing module that the application information that the present invention provides is processed
Gas meter, flow meter passes through integrated logical setting letter unit and gateway in the Internet of Things sensing module that information is processed, and makes gas meter, flow meter simultaneously
It is provided with the function that communication function, gateway function and perception information are processed, decreases installation procedure, make module miniaturization, save
Space, and reduce sale and after cost.
In describing the invention in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ",
" installation ", " being connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or one
Body ground connects；Can be to be mechanically connected or electrically connect；Can be joined directly together it is also possible to by intermediary indirect
It is connected, can be the connection of two element internals.For the ordinary skill in the art, can be with concrete condition understanding
State term concrete meaning in the present invention.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.It should be noted that：Similar label and letter exist
Representing similar terms in figure below, therefore, once being defined in a certain Xiang Yi accompanying drawing, being then not required in subsequent accompanying drawing
It is defined further and to be explained.
Claims (10)
1. a kind of application information process Internet of Things sensing module gas meter, flow meter it is characterised in that：At described application information
The gas meter, flow meter of the Internet of Things sensing module of reason includes antenna, information is processed Internet of Things sensing module and sensing module, institute
The Internet of Things sensing module stating information process includes Internet of Things sensing unit and information process unit, and described information is processed
Internet of Things sensing module is all connected with antenna, sensing module, and described Internet of Things sensing unit includes communication unit and gateway.
2. the gas meter, flow meter of the Internet of Things sensing module that application information according to claim 1 is processed is it is characterised in that go back
Including control module, the Internet of Things sensing module that described information is processed is connected with described control module, and described information is processed
Unit is used for receiving the perception information of described sensing module transmission, and described perception information is converted to the communication information and by described
The communication information is transferred to described gateway by communication unit；Or for receiving the communication information of described communication unit transmission, by institute
The communication information stating communication unit transmission is converted to control information, and described control information is transferred to described control module, institute
State the work that control module controls the gas meter, flow meter of Internet of Things sensing module of described application information process according to described control information
Make state.
3. the gas meter, flow meter of the Internet of Things sensing module that application information according to claim 2 is processed is it is characterised in that institute
State perception information and include gas flow, gas-time, gaseous-pressure, described control information includes closing valve instruction, lock instruction, report
Alert instruction.
4. the gas meter, flow meter of the Internet of Things sensing module that application information according to claim 1 is processed is it is characterised in that institute
State communication unit for transmitting the communication information of described information processing unit transmission to described gateway, or by described gateway
The communication information after reason is transmitted to described information processing unit.
5. the gas meter, flow meter of the Internet of Things sensing module that application information according to claim 1 is processed is it is characterised in that institute
State gateway for locating the communication information of communication unit transmission described in reason, and the communication information after processing is transmitted to described sky
Line；Or for locating the communication information of antenna transmission described in reason, and the communication information after processing is transmitted to described communication unit
Unit.
6. the gas meter, flow meter of the Internet of Things sensing module that application information according to claim 1 is processed is it is characterised in that institute
The Internet of Things sensing module stating information process also includes peripheral circuit.
7. the gas meter, flow meter of the Internet of Things sensing module that the application information according to any one of claim 1-6 is processed, it is special
Levy and be, described communication unit and described gateway are integrated in a chip, are integrated, and described Internet of Things sensing unit is simultaneously
Possess the communication function of communication unit and the information processing function of described gateway.
8. the gas meter, flow meter of the Internet of Things sensing module that the application information according to any one of claim 1-6 is processed, it is special
Levy and be, described communication unit and described gateway are provided separately.
9. the gas meter, flow meter of the Internet of Things sensing module that the application information according to any one of claim 1-6 is processed, it is special
Levy and be, described communication unit adopts broadband connections.
10. the gas meter, flow meter of the Internet of Things sensing module that the application information according to any one of claim 1-6 is processed, it is special
Levy and be, described communication unit adopts narrow band communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611035707.1A CN106485904A (en) | 2016-11-23 | 2016-11-23 | The gas meter, flow meter of the Internet of Things sensing module that application information is processed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611035707.1A CN106485904A (en) | 2016-11-23 | 2016-11-23 | The gas meter, flow meter of the Internet of Things sensing module that application information is processed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106485904A true CN106485904A (en) | 2017-03-08 |
Family
ID=58274087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611035707.1A Pending CN106485904A (en) | 2016-11-23 | 2016-11-23 | The gas meter, flow meter of the Internet of Things sensing module that application information is processed |
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| CN (1) | CN106485904A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106657306A (en) * | 2016-12-12 | 2017-05-10 | 成都秦川科技发展有限公司 | Internet of things sensing module with information processing of smart gas Internet of things system |
| CN110086876A (en) * | 2019-04-30 | 2019-08-02 | 成都秦川物联网科技股份有限公司 | The Internet of Things intelligence instrument of double gateways is communicated with NB |
| CN110086875A (en) * | 2019-04-30 | 2019-08-02 | 成都秦川物联网科技股份有限公司 | The Internet of Things intelligence instrument of preposition gateway is communicated with NB |
| CN110099057A (en) * | 2019-04-30 | 2019-08-06 | 成都秦川物联网科技股份有限公司 | Internet of Things intelligence instrument with NB communication postposition gateway |
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| CN103488147A (en) * | 2013-09-23 | 2014-01-01 | 柳州市欧博科技有限公司 | Platform and system of Internet of things |
| CN205490665U (en) * | 2015-12-30 | 2016-08-17 | 陕西理工学院 | Thing networking systems's communication device |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103488147A (en) * | 2013-09-23 | 2014-01-01 | 柳州市欧博科技有限公司 | Platform and system of Internet of things |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106657306A (en) * | 2016-12-12 | 2017-05-10 | 成都秦川科技发展有限公司 | Internet of things sensing module with information processing of smart gas Internet of things system |
| CN110086876A (en) * | 2019-04-30 | 2019-08-02 | 成都秦川物联网科技股份有限公司 | The Internet of Things intelligence instrument of double gateways is communicated with NB |
| CN110086875A (en) * | 2019-04-30 | 2019-08-02 | 成都秦川物联网科技股份有限公司 | The Internet of Things intelligence instrument of preposition gateway is communicated with NB |
| CN110099057A (en) * | 2019-04-30 | 2019-08-06 | 成都秦川物联网科技股份有限公司 | Internet of Things intelligence instrument with NB communication postposition gateway |
| CN110099057B (en) * | 2019-04-30 | 2021-07-13 | 成都秦川物联网科技股份有限公司 | Internet of things intelligent instrument with NB communication rear gateway |
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Address after: 610199 Chengdu Industrial Zone, Longquanyi City Industrial Park Road, bounded by the No. 10, No. Applicant after: Chengdu Qinchuan networking Polytron Technologies Inc Address before: 610199 Chengdu Industrial Zone, Longquanyi City Industrial Park Road, bounded by the No. 10, No. Applicant before: Chengdu Taichuan Technology Development Co., Ltd. |
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Application publication date: 20170308 |