CN110167010B - Communication switching device and method for communication module of Internet of things - Google Patents
Communication switching device and method for communication module of Internet of things Download PDFInfo
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- CN110167010B CN110167010B CN201910563285.2A CN201910563285A CN110167010B CN 110167010 B CN110167010 B CN 110167010B CN 201910563285 A CN201910563285 A CN 201910563285A CN 110167010 B CN110167010 B CN 110167010B
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- sim card
- switching
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- things
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3816—Mechanical arrangements for accommodating identification devices, e.g. cards or chips; with connectors for programming identification devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The embodiment of the invention discloses a communication switching device and a communication switching method for an internet of things communication module, wherein a SIM card contact is connected with a SIM card switching assembly through a data line, the SIM card switching assembly comprises a plurality of paths of switches, each path of switch is provided with a SIM card expansion slot, each SIM card expansion slot is internally provided with a SIM card, and the switches are communicated with the SIM card through pins; the plurality of the switching switches are connected with a decoder, the decoder is provided with a switching control port, the decoder is connected with a main controller through the switching control port, and the main controller is used for controlling the switching actions of the plurality of the switching switches through the decoder. According to the technical scheme, a physical SIM card slot of the communication module is not modified, a plurality of SIM cards of multiple operators are supported, manual and automatic switching of the SIM cards is realized, the labor cost is reduced, the limitation of the Internet of things by network signals of the operators is avoided, and the timeliness and effectiveness of the communication of the Internet of things are ensured.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication of the Internet of things, in particular to a communication switching device and a communication switching method for a communication module of the Internet of things.
Background
The internet of things is an information carrier such as the internet and a traditional telecommunication network, and enables all common objects capable of performing independent functions to realize interconnection and intercommunication. The internet of things is generally a wireless network, and because devices around everyone can reach one thousand to five thousands, the internet of things may contain 500 megabytes to one gigabyte of objects. On the Internet of things, everyone can use the electronic tag to connect the real object on the Internet, and the specific positions of the real objects can be found out on the Internet of things.
At present, "everything interconnection" is not only a wish, and local Internet of things such as industrial automation, intelligent agriculture, intelligent public transportation, high-end hotels and other places have been realized in many practical application scenes. The communication technology is the focus of the internet of things industry in the past or in the future, the internet of things must be realized by the prior communication technology, the communication plays a key role in the upspring and downspring, the products such as the sensor can be docked upwards, the server and the user terminal can be docked downwards, and the like, thus being a very important break for the enterprise to enter the internet of things service. At present, the communication module of the internet of things has only one physical SIM card slot, only can accommodate one SIM card, supports a certain specific operator, and needs to manually replace the SIM card when the operator signal is bad at the position of the communication module, thereby being time-consuming, labor-consuming and high in cost.
Disclosure of Invention
Therefore, the embodiment of the invention provides the communication switching device and the communication switching method for the communication module of the internet of things, which can support a plurality of SIM cards while not modifying the physical SIM card slot of the communication module, and automatically or manually switch to other operators to select a proper SIM card when a certain operator signal is bad, so that the timely effectiveness of the communication of the internet of things is ensured.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions: the communication switching device for the internet of things communication module comprises SIM card contacts and SIM card switching components, wherein the SIM card contacts are connected with SIM card slots on internet of things equipment, the SIM card contacts are connected with the SIM card switching components through data lines, the SIM card switching components comprise a plurality of paths of switch, each path of switch is provided with one SIM card expansion slot, and each SIM card expansion slot is internally provided with one SIM card which is communicated with the corresponding SIM card through pins;
the plurality of the switching switches are connected with a decoder, the decoder is provided with a switching control port, the decoder is connected with a main controller through the switching control port, and the main controller is used for controlling the switching actions of the plurality of the switching switches through the decoder.
As an optimal scheme of the communication switching device for the communication module of the Internet of things, the data line adopts a flexible wire connector, one end of the flexible wire connector is connected with the flexible wire connector, and the other end of the flexible wire connector is connected with the SIM card switching assembly.
As the preferable scheme of the communication switching device for the communication module of the Internet of things, the SIM card switching assembly comprises a multi-way switch, wherein the multi-way switch is provided with four SIM card expansion slots, and each SIM card expansion slot is provided with one SIM card.
As a preferable scheme of the communication switching device for the communication module of the Internet of things, the switching switch comprises a mode switch and at least two channel switches.
As a preferred scheme of the communication switching device for the communication module of the Internet of things, the SIM card adopts a Micro SIM card, a Nano SIM card or a patch type SIM card, and the SIM card is provided by three operators of China Mobile, china Unicom or China telecom or an international operator.
As the preferable scheme of the communication switching device for the communication module of the Internet of things, the main controller is provided with a power supply circuit and a grounding circuit, and the switching switch is provided with the power supply circuit and the grounding circuit.
The embodiment of the invention also provides a communication switching method for the communication module of the Internet of things, which adopts the communication switching device and comprises the following steps: judging a switching mode, wherein the switching mode comprises a manual switching mode and an automatic switching mode;
under the manual switching mode, reading an identification value of a communication channel, and enabling a switching control port to enable a SIM card contact to be communicated with a SIM card in a corresponding SIM card expansion slot according to the identification value;
and in the automatic switching mode, selecting a communication channel for communication, outputting a corresponding identification value, monitoring application protocol data unit interaction data in the communication channel, judging whether the selected SIM card attachment network is successful, switching the identification value by switching a control port when the SIM card attachment network fails, and stopping switching the identification value when the SIM card attachment network is successful.
As a preferred scheme of the communication switching method for the communication module of the Internet of things, the switching control port outputs binary codes, and after decoding is carried out through a decoder, pins of the SIM card expansion slot are controlled to be communicated with specified physical SIM card pins.
As a preferable scheme of the communication switching method for the communication module of the Internet of things, at least two communication channels are provided, each communication channel is provided with identification values, preferably three communication channels are CH1, CH2 and CH3, the identification value of the CH1 communication channel is 00, the identification value of the CH2 communication channel is 01, and the identification value of the CH3 communication channel is 02.
The embodiment of the invention has the following advantages: the SIM card contact is connected with the SIM card switching assembly through a data line, the SIM card switching assembly comprises a plurality of paths of switches, each path of switch is provided with an SIM card expansion slot, each SIM card expansion slot is provided with an SIM card, and the switches are communicated with the SIM card through pins; the plurality of the switching switches are connected with a decoder, the decoder is provided with a switching control port, the decoder is connected with a main controller through the switching control port, and the main controller is used for controlling the switching actions of the plurality of the switching switches through the decoder. According to the technical scheme, a physical SIM card slot of the communication module is not modified, a plurality of SIM cards of multiple operators are supported, manual and automatic switching of the SIM cards is realized, the labor cost is reduced, the limitation of the Internet of things by network signals of the operators is avoided, and the timeliness and effectiveness of the communication of the Internet of things are ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.
Fig. 1 is a schematic structural diagram of a communication switching device for an internet of things communication module according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a communication circuit of a communication switching device for a communication module of the internet of things for switching control pins of a control port according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a communication channel manually selected by a communication switching device for an internet of things communication module according to an embodiment of the present invention;
fig. 4 is a schematic circuit diagram of a communication switching device for an internet of things communication module according to an embodiment of the present invention;
fig. 5 is a schematic flow chart of a manual selection communication channel of a communication switching method for an internet of things communication module according to an embodiment of the present invention;
fig. 6 is a schematic flow chart of a communication channel automatic selection method for a communication switching method of an internet of things communication module according to an embodiment of the present invention;
in the figure: 1. SIM card contacts; 2. a SIM card switching component; 3. a SIM card slot; 4. a data line; 5. a change-over switch; 6. a SIM card expansion slot; 7. a SIM card; 8. a decoder; 9. switching the control port; 10. a main controller; 11. a power supply line; 12. and a grounding line.
Detailed Description
Other advantages and advantages of the present invention will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, fig. 2, fig. 3 and fig. 4, a communication switching device for an internet of things communication module is provided, which comprises a SIM card contact 1 and a SIM card switching assembly 2, wherein the SIM card contact 1 is connected with a SIM card slot 3 on internet of things equipment, the SIM card contact 1 is connected with the SIM card switching assembly 2 through a data line 4, the SIM card switching assembly 2 comprises a plurality of switches 5, each switch 5 is provided with a SIM card expansion slot 6, each SIM card expansion slot 6 is provided with a SIM card 7, and the switches 5 are communicated with the SIM card 7 through pins. The plurality of switching switches 5 are connected with a decoder 8, the decoder 8 is configured with a switching control port 9, the decoder 8 is connected with a main controller 10 through the switching control port 9, and the main controller 10 is used for controlling the switching actions of the plurality of switching switches 5 through the decoder 8. The main controller 10 is connected with a power supply line 11, the power supply line 11 realizes the power supply function of the communication switching device, the switch 5 is connected with a grounding line 12, and the safety of the communication switching device is improved.
Specifically, the switching control port 9 outputs a binary code, and after decoding, the decoder 8 controls the connection between the pin of the SIM card slot 3 and the pin of the SIM card 7 of the designated SIM card expansion slot 6. Decoder 8 may modify binary information from an n-encoded input to a majority 2 n Exclusive output. If the subsequent bit-encoded data has an idle bit pattern, the decoder 8 has less than 2 n And outputs. The decoder 8 circuit takes an n-bit binary number and produces an output on one of the output lines, described by addressing the number of i/p lines and the number of data o/p lines, the decoder 8 may comprise two 2-4 line circuits, a 3-8 line circuit or a 4-16 line decoder 8 circuit. The decoder 8 circuit may be an and gate whose output is "high" to a "high active output" when all inputs are "high".
In one embodiment of the communication switching device for the communication module of the internet of things, the data line 4 adopts a flexible cord connector, one end of the flexible cord connector is connected with the flexible cord connector, and the other end of the flexible cord connector is connected with the SIM card switching assembly 2. The flexible wire connector is a flexible circuit board in nature, and can realize data transmission in the movable part and the movable area. The flexible wire connector is formed by laminating PET or other insulating materials and ultrathin tinned flat copper wires, and is soft, bent and folded at will, thin in thickness, small in size, simple to connect, convenient to detach and easy to solve electromagnetic shielding.
In one embodiment of the communication switching device for the internet of things communication module, the SIM card switching assembly 2 includes a multiple-way switch 5, where the multiple-way switch 5 is configured with four SIM card expansion slots 6, and each SIM card expansion slot 6 is provided with a SIM card 7. The change-over switch 5 comprises a mode switch and at least two channel switches. The SIM card switching assembly 2 adopts a multi-channel multi-throw switch, the SIM card 7 adopts a Micro SIM card, a Nano SIM card or a patch type SIM card, and the SIM card 7 is provided by three operators of china mobile, china Unicom or china telecom or international operators.
Referring to fig. 5 and 6, the embodiment of the invention further provides a communication switching method for the communication module of the internet of things, which comprises the following steps: judging a switching mode, wherein the switching mode comprises a manual switching mode and an automatic switching mode;
under the manual switching mode, reading an identification value of a communication channel, and enabling a switching control port to enable a SIM card contact to be communicated with a SIM card in a corresponding SIM card expansion slot according to the identification value;
and in the automatic switching mode, selecting a communication channel for communication, outputting a corresponding identification value, monitoring application protocol data unit interaction data in the communication channel, judging whether the selected SIM card attachment network is successful, switching the identification value by switching a control port when the SIM card attachment network fails, and stopping switching the identification value when the SIM card attachment network is successful.
In particular, an attached network refers to a process whereby an internet of things device connects to a local wireless network (e.g., a wireless LAN access point) and is able to utilize at least some of the services provided by the network.
In one embodiment of the communication switching method for the communication module of the internet of things, the switching control port outputs a binary code, and after decoding by the decoder, the pins of the SIM card expansion slot are controlled to be communicated with the specified physical SIM card pins. The number of the communication channels is three, the three communication channels are CH1, CH2 and CH3, the identification value of the CH1 communication channel is 00, the identification value of the CH2 communication channel is 01, and the identification value of the CH3 communication channel is 02.
The SIM card contact is connected with the SIM card switching assembly through the data line, the SIM card switching assembly comprises a plurality of paths of switches, each path of switch is provided with an SIM card expansion slot, each SIM card expansion slot is internally provided with one SIM card, and the switches are communicated with the SIM card through pins; the plurality of the switching switches are connected with a decoder, the decoder is provided with a switching control port, the decoder is connected with a main controller through the switching control port, and the main controller is used for controlling the switching actions of the plurality of the switching switches through the decoder. The manual switching is realized by a toggle switch, and the automatic switching is realized by monitoring signals on a logic channel of the SIM card, and the switching is implemented when the network access is not possible. And the switching control port outputs binary codes, and after decoding is carried out through the decoder, the pins of the SIM card expansion slot are controlled to be communicated with the specified physical SIM card pins. Selecting a mode (manual/automatic) by a toggle switch, and selecting a channel in the manual mode; the channel selection execution circuit is as follows: the main controller controls the output of the switching control port, decodes the multi-channel multi-throw switch according to the input value, and executes corresponding circuit switching operation. And in the automatic selection mode, when the selected SIM card can not log on the network through monitoring APDU interaction data in the channel, outputting the selected and determined SIM card through switching the control port. According to the technical scheme, a physical SIM card slot of the communication module is not modified, a plurality of SIM cards of multiple operators are supported, manual and automatic switching of the SIM cards is realized, the labor cost is reduced, the limitation of the Internet of things by network signals of the operators is avoided, and the timeliness and effectiveness of the communication of the Internet of things are ensured.
While the invention has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.
Claims (7)
1. The communication switching method for the communication module of the Internet of things is characterized by comprising the following steps of: judging a switching mode, wherein the switching mode comprises a manual switching mode and an automatic switching mode;
under the manual switching mode, reading an identification value of a communication channel, and enabling a switching control port to enable a SIM card contact to be communicated with a SIM card in a corresponding SIM card expansion slot according to the identification value;
in the automatic switching mode, selecting a communication channel for communication and outputting a corresponding identification value, monitoring application protocol data unit interaction data in the communication channel, judging whether the selected SIM card attachment network is successful or not, switching the identification value by switching a control port when the SIM card attachment network fails, and stopping the identification value switching when the SIM card attachment network is successful;
the switching control port outputs binary codes, and after decoding is carried out through a decoder, pins of the SIM card expansion slot are controlled to be communicated with specified physical SIM card pins;
the number of the communication channels is at least two, and each communication channel is configured with an identification value.
2. The communication switching device for the internet of things communication module is characterized by comprising SIM card contacts (1) and SIM card switching components (2), wherein the SIM card contacts (1) are connected with SIM card grooves (3) on internet of things equipment, the SIM card contacts (1) are connected with the SIM card switching components (2) through data wires (4), the SIM card switching components (2) comprise a plurality of paths of switching switches (5), each path of switching switch (5) is provided with one SIM card expansion groove (6), each SIM card expansion groove (6) is provided with one SIM card (7), and the switching switches (5) are communicated with the SIM cards (7) through pins;
the plurality of the switching switches (5) are connected with a decoder (8), the decoder (8) is provided with a switching control port (9), the decoder (8) is connected with a main controller (10) through the switching control port (9), and the main controller (10) is used for controlling the switching actions of the plurality of the switching switches (5) through the decoder (8).
3. A communication switching device for an internet of things communication module according to claim 2, characterized in that the data line (4) adopts a flexible cord connector, one end of which is connected to the flexible cord connector, and the other end of which is connected to the SIM card switching assembly (2).
4. A communication switching device for an internet of things communication module according to claim 2, wherein the SIM card switching assembly (2) comprises a multi-way switch (5), the multi-way switch (5) is configured with four SIM card expansion slots (6), and each SIM card expansion slot (6) is provided with a SIM card (7).
5. A communication switching device for an internet of things communication module according to claim 2, characterized in that the switch (5) comprises a mode switch and at least two channel switches.
6. The communication switching device for the internet of things communication module according to claim 2, wherein the SIM card (7) is a Micro SIM card, a Nano SIM card or a patch SIM card, and the SIM card (7) is provided by three operators of china mobile, china Unicom or china telecom or an international operator.
7. A communication switching device for an internet of things communication module according to claim 2, characterized in that the main controller (10) is provided with a power supply line (11) and a ground line (12), and the switch (5) is provided with a power supply line (11) and a ground line (12).
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| CN201910563285.2A CN110167010B (en) | 2019-06-26 | 2019-06-26 | Communication switching device and method for communication module of Internet of things |
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| CN201910563285.2A CN110167010B (en) | 2019-06-26 | 2019-06-26 | Communication switching device and method for communication module of Internet of things |
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| CN110167010A CN110167010A (en) | 2019-08-23 |
| CN110167010B true CN110167010B (en) | 2023-09-08 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111031530A (en) * | 2019-11-13 | 2020-04-17 | 农眼区块链科技(广州)有限公司 | Agricultural Internet of things communication system and control method thereof |
| CN112073078B (en) * | 2020-09-04 | 2022-07-22 | 深圳市有方科技股份有限公司 | Multi-card single-to-be-switched method and Internet of things equipment |
| CN112187303B (en) * | 2020-09-23 | 2021-09-07 | 深圳联想懂的通信有限公司 | SIM card expansion equipment, SIM card switching method and device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2416696Y (en) * | 2000-02-24 | 2001-01-24 | 上海通用卫星导航有限公司 | Comnunication module and information channel automatic switching device |
| CN102123380A (en) * | 2011-03-15 | 2011-07-13 | 上海艾为电子技术有限公司 | Wireless terminal and multi-SIM (subscriber identity module)-card connecting device thereof |
| CN105282874A (en) * | 2015-11-04 | 2016-01-27 | 黄霞 | Internet-of-Things wireless communication multi-frequency access point |
| CN105450799A (en) * | 2014-12-08 | 2016-03-30 | 上海移远通信技术有限公司 | Wireless communication system and method for automatically switching SIM cards |
| CN206658304U (en) * | 2017-04-11 | 2017-11-21 | 成都特斯拉云网络技术有限公司 | A kind of system of expansion 2G Internet of Things field communication performance |
| CN207135282U (en) * | 2017-08-28 | 2018-03-23 | 北京智芯微电子科技有限公司 | I type concentrator remote communication modules |
| CN108184256A (en) * | 2018-01-26 | 2018-06-19 | 上海祐云信息技术有限公司 | A kind of ESIM cards automatic switching control equipment |
| CN109495884A (en) * | 2017-09-12 | 2019-03-19 | 上海产业技术研究院 | A kind of the network switching circuit and switching method of multimode multi-frequency |
| CN209748833U (en) * | 2019-06-26 | 2019-12-06 | 上海果通通信科技股份有限公司 | Communication switching device for communication module of Internet of things |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101649994B1 (en) * | 2010-04-30 | 2016-08-22 | 삼성전자주식회사 | Apparatus and method for automatic sim card selection according to network environment in dual mode terminal |
| US20160295544A1 (en) * | 2015-03-31 | 2016-10-06 | Globetouch, Inc. | Enhanced cloud sim |
-
2019
- 2019-06-26 CN CN201910563285.2A patent/CN110167010B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2416696Y (en) * | 2000-02-24 | 2001-01-24 | 上海通用卫星导航有限公司 | Comnunication module and information channel automatic switching device |
| CN102123380A (en) * | 2011-03-15 | 2011-07-13 | 上海艾为电子技术有限公司 | Wireless terminal and multi-SIM (subscriber identity module)-card connecting device thereof |
| CN105450799A (en) * | 2014-12-08 | 2016-03-30 | 上海移远通信技术有限公司 | Wireless communication system and method for automatically switching SIM cards |
| CN105282874A (en) * | 2015-11-04 | 2016-01-27 | 黄霞 | Internet-of-Things wireless communication multi-frequency access point |
| CN206658304U (en) * | 2017-04-11 | 2017-11-21 | 成都特斯拉云网络技术有限公司 | A kind of system of expansion 2G Internet of Things field communication performance |
| CN207135282U (en) * | 2017-08-28 | 2018-03-23 | 北京智芯微电子科技有限公司 | I type concentrator remote communication modules |
| CN109495884A (en) * | 2017-09-12 | 2019-03-19 | 上海产业技术研究院 | A kind of the network switching circuit and switching method of multimode multi-frequency |
| CN108184256A (en) * | 2018-01-26 | 2018-06-19 | 上海祐云信息技术有限公司 | A kind of ESIM cards automatic switching control equipment |
| CN209748833U (en) * | 2019-06-26 | 2019-12-06 | 上海果通通信科技股份有限公司 | Communication switching device for communication module of Internet of things |
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