CN109246639A - A kind of data gateway system and its communication means - Google Patents
A kind of data gateway system and its communication means Download PDFInfo
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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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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
- H04L63/045—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply hybrid encryption, i.e. combination of symmetric and asymmetric encryption
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/12—Applying verification of the received information
- H04L63/123—Applying verification of the received information received data contents, e.g. message integrity
-
- 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
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
-
- 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
- H04L67/34—Network arrangements or protocols for supporting network services or applications involving the movement of software or configuration parameters
-
- 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
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/565—Conversion or adaptation of application format or content
- H04L67/5651—Reducing the amount or size of exchanged application data
-
- 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
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
- H04L67/5681—Pre-fetching or pre-delivering data based on network characteristics
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/02—Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/10—Integrity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/10—Flow control between communication endpoints
- H04W28/14—Flow control between communication endpoints using intermediate storage
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/16—Gateway arrangements
Abstract
The present invention provides a kind of communication means of data gateway system, comprising steps of A, data gateway are acquired according to communication instruction turn-on data, information exchange are carried out by 2.4G communication module and sensor node, to obtain the data that the sensor node uploads；B, data gateway compresses the data, after encryption, is uploaded to Cloud Server by WiFi communication module.
Description
Technical field
The present invention relates to field of communication technology, especially a kind of data gateway system and its communication means.
Background technique
It is closely low that the data gateway system of existing multiple sensor nodes and Cloud Server mainly passes through zigbee etc.
Fast wireless communication technique acquires sensing data, is then realized by high speeds telecommunication technology upload servers such as WiFi.
Such as content involved in the patent of invention application No. is 201610859455.8, gateway only simple acquisition
Transmission, does not do data itself any processing, does not ensure that the validity and accuracy of data, big for big data quantity
And the situation of network quality difference not can effectively solve.
Summary of the invention
The main purpose of the present invention is to provide a kind of data gateway system and its communication means, to overcome drawbacks described above.
The communication means of the data gateway system comprising steps of
A, data gateway is acquired according to communication instruction turn-on data, carries out letter by 2.4G communication module and sensor node
Breath interaction, to obtain the data that the sensor node uploads；
B, data gateway compresses the data, after encryption, is uploaded to cloud service by WiFi communication module
Device.
By upper, data gateway may be implemented that bandwidth occupancy can be reduced by compressed data for the processing for transmitting data
Amount is the communication security realized between data gateway and Cloud Server by encrypting then.
Wherein, in step B, data gateway carries out caching process to the data；
Real-time detection WiFi communication environment, when WiFi communication environment is bad, pause data upload and pause node into
Line flag has uploaded data and data to be uploaded to distinguish；
When WiFi communication environment is normal, the data to be uploaded are resumed.
It by upper, is backed up in realtime by memory module, is resumed to support to interrupt.When network environment is bad, then stop
Only upload；And when network environment is normal, the upload of acquisition data, which renews, in memory module reaches Cloud Server.
A kind of communication means of data gateway system, comprising steps of
A, data gateway and Cloud Server carry out information exchange, download current upgrade package to determine；
B, data gateway parses the current upgrade package to be upgraded；
C, data gateway is based on the current upgrade package to current upgrade package described in sensor node broadcasts, sensor node
Upgraded.
By upper, data gateway can access network by WIFI, under the scene that sensor node does not support network savvy,
The aerial upgrade of sensor node can also be realized by concentrating type aerial upgrade technology.
Wherein, current upgrade package described in step A includes:
Two independent files of BootLoader and APP upgrade package are merged into merging upgrading according to a preset algorithm
Packet is verified the merging upgrade package with whole, and check code is written at fixing address.
By upper, by the way that the merging of BootLoader and APP upgrade package can effectively improve safety.If go-between carries out
Attack, it is desirable to obtain and modify corresponding upgrade file contents, that is, allow to catch corresponding data information, since it can not be obtained
Preset algorithm is taken, can not also parse upgrading data so even taking and merging upgrade package.Secondly, being repaired if merging upgrade package
Change, then it can be because of verification not by leading to not be upgraded.
Wherein, step B includes:
The integrality of combining data detection upgrade package, when checking that the merging upgrade package is complete, using described default
Algorithm calculates BootLoader and APP upgrade package, bootstrap of the BootLoader as APP upgrade package.
By upper, if go-between attacks, it is desirable to obtain and modify corresponding upgrade file contents, that is, allow to catch
Corresponding data information can not also parse upgrading so even taking and merging upgrade package since it can not obtain preset algorithm
Data.Secondly, modified if merging upgrade package, it can be because of verification not by leading to not be upgraded.
Wherein, step C further include: sensor node carry out escalation process in, real-time detection upgrading whether normal step,
If being resetted when escalation process abnormal conditions.
By upper, the sub-step configured with watch dog monitoring, i.e., whether described each sensor real-time detection upgrading is normal, if producing
Raw race is resetted when flying, so as to effectively prevent upgrade package is wrong to lead to program fleet.
Correspondence also provides a kind of data gateway system, comprising:
Data gateway and the sensor node and Cloud Server for communicating with connection respectively；
The data gateway includes:
Main control module, and 2.4G communication module and WiFi communication module connected to it, the 2.4G communicate mould respectively
Block and the sensor node communicate to connect, and the WiFi communication module and the Cloud Server communicate to connect, the master control
Module is used for the forwarding and parsing of data.
By upper, data gateway may be implemented that bandwidth occupancy can be reduced by compressed data for the processing for transmitting data
Amount is the communication security realized between data gateway and Cloud Server by encrypting then.
Wherein, the data gateway further includes memory module, is connected to the main control module,
The memory module is for caching data to be uploaded when network environment is bad.
It by upper, is backed up in realtime by memory module, is resumed to support to interrupt.When network environment is bad, then stop
Only upload；And when network environment is normal, the upload of acquisition data, which renews, in memory module reaches Cloud Server.
Detailed description of the invention
Fig. 1 is the schematic illustration of data gateway system；
Fig. 2 is the communication means schematic diagram of data gateway system；
Fig. 3 is the method schematic diagram of sensor node aerial upgrade.
Specific embodiment
Data gateway system of the present invention and its communication means are described in detail referring to FIG. 1 to FIG. 3.
As shown in Figure 1 it is the schematic illustration of data gateway system, including data gateway 100 and communicates with connection respectively
Sensor node 200, Cloud Server 300 and controlling terminal 400.
In the present embodiment, the sensor node 200 is including being configured at the various tested equipped with can detecte of gymnasium
The sensor for measuring information, for detecting exercise data.The sensor node 200 integrates 2.4G communication module, can will acquire
To data be wirelessly sent to data gateway 100.
Data gateway 100 includes main control module 101, and 2.4G communication module 102 connected to it, memory module respectively
103 and WiFi communication module 104.
The Cloud Server 300 is for separately providing the Internet infrastructures service such as calculating, storage, online backup.
Controlling terminal 400 includes the smart machines such as PAD or mobile phone, for controlling data gateway 100 and sensor node
200, to improve the interactivity of data gateway system.
Fig. 2 show the communication means schematic diagram of data gateway system, comprising the following steps:
A1: controlling terminal 400 assigns data acquisition instructions to sensor node 200.
A2:WiFi communication module 104 receives the data acquisition instructions and is forwarded to main control module 101.
A3: main control module 101 parses the data acquisition instructions, opens the communication with 2.4G communication module 102, with from this
Place obtains data.
102 fixed cycle of A4:2.4G communication module issues the current sync number of each sensor in the sensor node 200
According to acquisition.
The current sync data acquisition command includes ID and its corresponding current sync period of each sensor.
A5: it after each sensor in sensor node 200 receives the synchronous data collection order, is automatically found according to ID
One's own synchronizing cycle, and collected data are sent by its internal 2.4G communication module.
Data transmitted by each sensor in 102 receiving sensor node 200 of A6:2.4G communication module.
A7: main control module 101 parses the data received, parses correct data and carries out at compression Encryption Algorithm
Reason.
In this step, resolving includes in sensor node 200 to the Encryption Algorithm of data and in main control module 101
In to the decipherment algorithms of data, the safety of data transmission may be implemented by above-mentioned parsing.
It and in the compression Encryption Algorithm in main control module 101 is communicated with raising in the communication process of Cloud Server 300
The solution of speed can reduce bandwidth usage by compressed data, be to realize data gateway 100 and cloud by encrypting then
Communication security between server 300.
A8: main control module 101 deposits the data after handled in step A7 by the progress quick backup of memory module 103
Storage.
A9:WiFi communication module 104 will it is handled in step A7 after data be modulated after export in a wireless form.
A10: Cloud Server 300 receives wireless data transmitted by step A9, and exports one to WiFi communication module 104
Receive feedback.
A11:WiFi communication module 104 receives the reception feedback that the Cloud Server 300 is sent, and is forwarded to described
Main control module 101.
A12: main control module 101 parses Cloud Server 300 and receives feedback, in the current sync period based on step A4, issues
Next synchronous data collection order of each sensor in the sensor node 200.
102 fixed cycle of A13:2.4G communication module issues next synchronization of each sensor in the sensor node 200
Data acquisition command.
A14: step A5~A11, and 104 real time monitoring network environment of WiFi communication module are repeated；
When network environment is bad, pause data are uploaded, and are treated and be uploaded to the data of Cloud Server 300 and be marked,
Data and data to be uploaded have been uploaded to distinguish；
When network environment is normal, data to be uploaded are first detected whether；If so, it is continuous then to carry out data from mark
It passes；It is normal to upload data if nothing.
A15: controlling terminal 400 issues the order that stops data collection.
A16:WiFi communication module 104 receives the order that stops data collection, and is transmitted to main control module 101.
A17: main control module 101 parses the order that stops data collection, and is forwarded to 2.4G communication module 102, by it
Broadcast each sensor into sensor node 200.
A18: the order that stops data collection is forwarded to WiFi communication module 104 by main control module 101.
A19:WiFi communication module 104 is exported in a wireless form after being modulated the order that stops data collection to cloud
Server 300, process terminates.
The data that above-mentioned communication means uploads each sensor in collected sensor node 200 carry out parsing compression
Cloud Server 300 is uploaded after Encryption Algorithm processing in real time, and is backed up in realtime by memory module 103, to support to interrupt
It resumes.When network environment is bad, then stop uploading；And when network environment is normal, from the inner acquisition data of memory module 103
Biography, which renews, reaches Cloud Server 300.
In addition, the application, which is suitable for data gateway, can access network by WIFI, do not support to join in sensor node 200
Under the scene of net function, the aerial upgrade of sensor node 200 can also be realized by concentrating type aerial upgrade technology.Sensor
The detailed process of 200 aerial upgrade of node is as shown in Figure 3, comprising the following steps:
B1: the triggering upgrading of data gateway 100 detects the version information of upgrade package, sends inquiry version to Cloud Server 300
Message command.
In this step, the triggering upgrading of data gateway 100 by Cloud Server 300 can broadcast triggering, and can also lead to
Cross the triggering of 100 automatic regular polling of data gateway.Specific triggering form is herein without limiting.Also, in above-mentioned steps, data network
Close the interaction of communication logic realization and Cloud Server 300 and sensor node 200 of 100 inside by each submodule.But it is above-mentioned
Communication logic is not the emphasis of aerial upgrade, therefore omits herein, only with the replacement of data gateway 100.
B2: Cloud Server 300 is handed down to the version information of the current upgrade package of data gateway 100.
B3: the existing version that data gateway 100 is saved by the version information of the current upgrade package received and locally
Information compares, and then requests to download if more new version.
B4: data gateway 100 downloads current upgrade package from Cloud Server 300.
B5: data gateway 100 checks whether the current upgrade package is attacked, and feeds back inspection result to Cloud Server 300.
The current upgrade package be after research staff develops new version BootLoader and APP upgrade package is merged, then
Synthesized upgrade package is uploaded on Cloud Server 300.Wherein, the guidance by the BootLoader as APP upgrade package
Program, i.e. operation upgrading are then to jump to APP upgrade package since Bootloader.
It is when BootLoader and APP upgrade package is merged, two independent files of BootLoader and APP are pre- according to one
The merging of imputation method is integral, i.e. merging upgrade package.Such as the letter such as shared function that BootLoader and APP upgrade package can be used
The two is merged together by breath.The rule is stored respectively in data gateway 100, each sensing in sensor node 200 in advance
In device and Cloud Server 300.
It is subsequent, it is verified for merging upgrade package with whole.Such as cyclic redundancy check (CRC, Cyclic can be used
Redundancy Check), and check code is written at fixing address.
When data gateway 100 checks whether the current upgrade package is attacked, closed first using cyclic redundancy check detection
And the integrality of upgrade package.It is calculated when checking that the merging upgrade package is complete, and then using preset algorithm
BootLoader and APP upgrade package.Inspection result is fed back to Cloud Server 300 by data gateway 100.
In this step, by the way that BootLoader and APP merging can effectively improve safety.If go-between attacks
It hits, it is desirable to obtain and modify corresponding upgrade file contents, that is, allow to catch corresponding data information, since it can not be obtained
Preset algorithm can not also parse upgrading data so even taking and merging upgrade package.Secondly, being repaired if merging upgrade package
Change, then it can be because of verification not by leading to not be upgraded.
B6: data gateway 100 parses the current upgrade package to carry out gateway upgrading.
B7: data gateway 100 broadcasts the version information of current upgrade package to sensor node 200.
B8: each sensor in sensor node 200 is by the version information of the current upgrade package received and local
The existing version information of preservation compares, and then requests to download if more new version.
B9: data gateway 100 divides n times to broadcast the current upgrade package.
B10: the number for the current upgrade package that each sensor in sensor node 200 is arrived to 100 feedback reception of data gateway
Amount.
B11: data gateway 100 judges whether according to the feedback of each sensor in sensor node 200 by data whole
It is transmitted, is, send beginning upgrade command.
B12: each sensor in sensor node 200 checks whether the current upgrade package is attacked, and feedback checks knot
Fruit is to data gateway 100.
The checking process of each sensor in this step sensor node 200 is identical as abovementioned steps B5, herein without
It repeats.
B13: each sensor in sensor node 200 is upgraded.
In this step, configured with the sub-step of watch dog monitoring, i.e., just whether described each sensor real-time detection upgrading
Often, it is resetted if generating when race flies, so as to effectively prevent upgrade package is wrong to lead to program fleet.
B14: data gateway 100 feeds back updating result to Cloud Server 300.
B15: Cloud Server 300 judges the updating result, and process terminates if upgrading successfully；The cloud if upgrading is unsuccessful
Server 300 re-issues upgrade file, i.e., circulation carries out step B2~B15, until updating result corresponds to success.
In addition, its other party also can be used in addition to above-mentioned BootLoader and APP merges in a manner of effectively improving safety
Formula, which is realized, guarantees safety.
For example, the mode that asymmetric encryption and symmetric cryptography combine also can be used, step B3~B5 is replaced with as follows
Step:
Data gateway 100 generates a secret key pair 1 (public key and private spoon), and when request is downloaded, the public spoon of secret key pair 1 is sent to
Cloud Server 300；
After the secret key 2 of symmetric cryptography is encrypted using the public spoon of the secret key pair 1 for Cloud Server 300, it is sent to
Data gateway 100；And then, Cloud Server 300 is encrypted using 2 pairs of upgrading data of key of symmetric cryptography, is sent
To data gateway 100；
The private spoon for the secret key pair 1 that data gateway 100 is saved by itself obtains the secret key 2 of symmetric cryptography to data deciphering,
To decrypt using key 2, upgrading data are obtained.
And when follow-up data gateway 100 and node interact, such as in step B9, data gateway 100 is also generated
The secret key 3 of symmetric cryptography encrypts current upgrade package using secret key 3, and the secret key 3 load is transmitted in current upgrade package
To sensor node 200；
In step B12, secret key 3 parses current upgrade package to sensor node 200 based on the received.
Since asymmetric encryption is although highly-safe, but computations are responsible for that time-consuming, and the meter of sensor node 200
Calculate scarce capacity.Therefore, it using the secret key of above-mentioned asymmetric encryption transmission symmetric cryptography, had not only realized the safety of transmission but also can protect
Demonstrate,prove efficiency of transmission.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of communication means of data gateway system, which is characterized in that comprising steps of
A, data gateway (100) is acquired according to communication instruction turn-on data, passes through 2.4G communication module and sensor node (200)
Information exchange is carried out, to obtain the data of the sensor node (200) upload；
B, data gateway (100) compresses the data, after encryption, is uploaded to cloud service by WiFi communication module
Device (300).
2. the method according to claim 1, wherein data gateway (100) carries out the data in step B
Caching process；
Real-time detection WiFi communication environment, when WiFi communication environment is bad, pause data are uploaded and are marked in pause node
Note has uploaded data and data to be uploaded to distinguish；
When WiFi communication environment is normal, the data to be uploaded are resumed.
3. a kind of communication means of data gateway system, which is characterized in that comprising steps of
A, data gateway (100) and Cloud Server (300) carry out information exchange, download current upgrade package to determine；
B, data gateway (100) parses the current upgrade package to be upgraded；
C, data gateway (100) broadcasts the current upgrade package to sensor node (200), and sensor node (200) is based on institute
Current upgrade package is stated to be upgraded.
4. according to the method described in claim 3, it is characterized in that, current upgrade package described in step A includes:
Two independent files of BootLoader and APP upgrade package are merged into a merging upgrade package according to a preset algorithm, it is right
The merging upgrade package is verified with whole, and check code is written at fixing address.
5. according to the method described in claim 4, it is characterized in that, step B includes:
The integrality of combining data detection upgrade package, when checking that the merging upgrade package is complete, using the preset algorithm
Calculate BootLoader and APP upgrade package, bootstrap of the BootLoader as APP upgrade package.
6. according to the method described in claim 3, it is characterized in that, step C further include: sensor node (200) is upgraded
In the process, real-time detection upgrading whether normal step, if being resetted when escalation process abnormal conditions.
7. a kind of data gateway system characterized by comprising data gateway (100) and the sensing for communicating with connection respectively
Device node (200) and Cloud Server (300)；
The data gateway (100) includes:
Main control module (101), and 2.4G communication module (102) connected to it and WiFi communication module (104) respectively, institute
It states 2.4G communication module (102) and the sensor node (200) communicates to connect, the WiFi communication module (104) and institute
Cloud Server (300) communication connection is stated, the main control module (101) is used for the forwarding and parsing of data.
8. gateway system according to claim 7, which is characterized in that the data gateway (100) further includes memory module
(103), it is connect with the main control module (101),
The memory module (103) is for caching data to be uploaded when network environment is bad.
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| CN111337727A (en) * | 2020-03-05 | 2020-06-26 | 山东泰开互感器有限公司 | Current transformer and cloud computing-based current transformer information interaction system |
| CN113326056A (en) * | 2021-06-28 | 2021-08-31 | 上海致景信息科技有限公司 | Data processing method, data processing device, storage medium and processor |
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| US10061852B1 (en) * | 2015-05-19 | 2018-08-28 | Amazon Technologies, Inc. | Transparent proxy tunnel caching for database access |
| CN105933150A (en) * | 2016-04-20 | 2016-09-07 | 努比亚技术有限公司 | OTA upgrade method, device and system |
| CN106444662A (en) * | 2016-09-23 | 2017-02-22 | 东莞团诚自动化设备有限公司 | Data collecting device for Internet of Things and method |
| CN108132797A (en) * | 2016-11-30 | 2018-06-08 | 青岛海信电器股份有限公司 | A kind of upgrade method of remote controler, SoC chip and its application program |
| CN206461664U (en) * | 2017-02-16 | 2017-09-01 | 杭州景涛科技有限公司 | A kind of data collecting system |
| CN106911502B (en) * | 2017-02-22 | 2019-11-12 | 烽火通信科技股份有限公司 | A kind of upgrade method and system of intelligent home gateway equipment |
| CN107102621A (en) * | 2017-05-10 | 2017-08-29 | 北京数码大方科技股份有限公司 | Collecting method, equipment and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111337727A (en) * | 2020-03-05 | 2020-06-26 | 山东泰开互感器有限公司 | Current transformer and cloud computing-based current transformer information interaction system |
| CN113326056A (en) * | 2021-06-28 | 2021-08-31 | 上海致景信息科技有限公司 | Data processing method, data processing device, storage medium and processor |
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