CN206658304U - A kind of system of expansion 2G Internet of Things field communication performance - Google Patents
A kind of system of expansion 2G Internet of Things field communication performance Download PDFInfo
- Publication number
- CN206658304U CN206658304U CN201720372837.8U CN201720372837U CN206658304U CN 206658304 U CN206658304 U CN 206658304U CN 201720372837 U CN201720372837 U CN 201720372837U CN 206658304 U CN206658304 U CN 206658304U
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- Prior art keywords
- sim card
- analog switch
- modules
- internet
- expansion
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Abstract
The utility model discloses a kind of system of expansion 2G Internet of Things field communication performance, including 2G modules, in addition to the analog switch being connected in 2G modules, processor and two SIM card interfaces are also associated with the analog switch；In this programme, from an inexpensive 2G communication module, and two SIM card interfaces, the DATA line of two SIM card interfaces is isolated by an analog switch, and analog switch is processor controlled.Processor in use, it is found that when a certain carrier network is in poor shape, closes currently used SIM card DATA line analog switch, opens another path analoging switch.The utility model has the advantages that：Improving cost is low, based on existing 2G modules；The more preferable SIM card of automatic selecting signal.
Description
Technical field
It the utility model is related to a kind of communication system, and in particular to a kind of expansion 2G Internet of Things field communication performance is
System.
Background technology
2G Internet of Things, it is always the main flow selection of Internet of Things application because hardware price is cheap.Due to many originals such as market
Cause, the signal section places of 2G in the wild are not good enough, and certain influence is brought to working application.Some places, mobile signal
Quite a lot of, the signal of some local UNICOMs is quite a lot of, and the bad place in two operation commercial cities is compared to seldom.But the 2G Internet of Things moulds of low side
Block is nearly all supported without double SIM card interface as providing mobile phone, therefore user can only select one kind between movement and UNICOM
System.
Existing double-card mobile phone is generally double-card dual-standby, and the SIM card of double card double standby mobile phone two works simultaneously, and cost is high, consumption
Electricity is high, but also is the card for needing artificial selection signal good.
Utility model content
Technical problem to be solved in the utility model is that existing double-card mobile phone is generally double-card dual-standby, double-card dual-standby hand
The SIM card of machine two works simultaneously, and cost is high, power consumption is high, but also is the card for needing artificial selection signal good, it is therefore intended that carries
For a kind of system of expansion 2G Internet of Things field communication performance, solve existing double-card mobile phone and be generally double-card dual-standby, double card is double
To treat the SIM card of mobile phone two while work, cost is high, power consumption is high, but also the problem of be the card for needing artificial selection signal good.
The utility model is achieved through the following technical solutions：
A kind of system of expansion 2G Internet of Things field communication performance, including 2G modules, in addition to be connected in 2G modules
Analog switch, processor and two SIM card interfaces are also associated with the analog switch；
Analog switch：The control signal of reception processing device, SIM card interface is turned on according to control signal；
Processor：The signal of communication of 2G modules is received, simulation is sent control signals to after analyzing signal of communication and opens
Close；
SIM card interface：The information of reading SIM card, 2G modules are sent to by analog switch.
In this programme, from an inexpensive 2G communication module, and two SIM card interfaces, two SIM card interfaces
DATA line, isolated by analog switch, analog switch is processor controlled.Processor in use, finds certain
When one carrier network is in poor shape, currently used SIM card DATA line analog switch is closed, opens another path analoging switch.
Database is also associated with the processor.Data support and data record are provided for processor.
Timing module is also associated with the processor.After processor switches SIM card every time, timing module starts to count
When, within the default time cycle of one, processor no longer receives the signal of communication of 2G modules, avoids two SIM card signals
When all bad, system, which constantly switches SIM card, to be influenceed to use.
RST port of the processor also with 2G modules.Currently used SIM card DATA line analog switch is closed, is opened
2G modules are resetted by RST lines again during another path analoging switch.2G modules will be read from SIM card again during restarting
Access evidence, and connect corresponding carrier network.
It is the DATA ports for being connected to SIM card interface that SIM card interface is connected on the analog switch.
The utility model compared with prior art, has the following advantages and advantages：
1st, a kind of system of expansion 2G Internet of Things field communication performance of the utility model, improving cost is low, based on existing
2G modules；
2nd, a kind of system of expansion 2G Internet of Things field communication performance of the utility model, the more preferable SIM of automatic selecting signal
Card.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the utility model embodiment, forms the one of the application
Part, the restriction to the utility model embodiment is not formed.In the accompanying drawings：
Fig. 1 is Tthe utility model system structural representation.
For the purpose of this utility model, technical scheme and advantage is more clearly understood, with reference to embodiment and accompanying drawing,
The utility model is described in further detail, and exemplary embodiment of the present utility model and its explanation are only used for explaining this
Utility model, it is not intended as to restriction of the present utility model.
Embodiment
As shown in figure 1, a kind of system of expansion 2G Internet of Things field communication performance of the utility model, including 2G modules, also
Including the analog switch being connected in 2G modules, processor and two SIM card interfaces are also associated with the analog switch；At this
In scheme, from an inexpensive 2G communication module, and two SIM card interfaces, the DATA line of two SIM card interfaces, lead to
An analog switch isolation is crossed, analog switch is processor controlled.Processor in use, finds a certain carrier network
When in poor shape, currently used SIM card DATA line analog switch is closed, opens another path analoging switch.On the processor
The memory and 555 timers as database are also integrated with, database provides data support and data record for processor；Meter
When module after processor switches SIM card every time, timing module starts timing, within the default time cycle of one, processing
Device no longer receives the signal of communication of 2G modules, and when avoiding two SIM card signals all bad, system, which constantly switches SIM card, to be influenceed to make
With.The processor is also connected with the RST ports of 2G modules.Currently used SIM card DATA line analog switch is closed, is opened another
2G modules are resetted by RST lines again during one path analoging switch.2G modules will be read from SIM card again during restarting
Data, and connect corresponding carrier network.It is the DATA for being connected to SIM card interface that SIM card interface is connected on the analog switch
Port.
Analog switch：The control signal of reception processing device, SIM card interface is turned on according to control signal；
Processor：The signal of communication of 2G modules is received, simulation is sent control signals to after analyzing signal of communication and opens
Close；
SIM card interface：The information of reading SIM card, 2G modules are sent to by analog switch.
Above-described embodiment, the purpose of this utility model, technical scheme and beneficial effect are entered
One step describes in detail, should be understood that and the foregoing is only specific embodiment of the present utility model, is not used to limit
Determine the scope of protection of the utility model, it is all within the spirit and principles of the utility model, any modification for being made, equally replace
Change, improve, should be included within the scope of protection of the utility model.
Claims (5)
1. a kind of system of expansion 2G Internet of Things field communication performance, including 2G modules, it is characterised in that also include being connected to 2G
Analog switch in module, processor and two SIM card interfaces are also associated with the analog switch；
Analog switch：The control signal of reception processing device, SIM card interface is turned on according to control signal；
Processor：The signal of communication of 2G modules is received, analog switch is sent control signals to after analyzing signal of communication；
SIM card interface：The information of reading SIM card, 2G modules are sent to by analog switch.
A kind of 2. system of expansion 2G Internet of Things field communication performance according to claim 1, it is characterised in that the place
Database is also associated with reason device.
A kind of 3. system of expansion 2G Internet of Things field communication performance according to claim 1, it is characterised in that the place
Timing module is also associated with reason device.
A kind of 4. system of expansion 2G Internet of Things field communication performance according to claim 1, it is characterised in that the place
Reason device is also connected with the RST ports of 2G modules.
A kind of 5. system of expansion 2G Internet of Things field communication performance according to claim 1, it is characterised in that the mould
It is the DATA ports for being connected to SIM card interface to intend connecting SIM card interface on switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720372837.8U CN206658304U (en) | 2017-04-11 | 2017-04-11 | A kind of system of expansion 2G Internet of Things field communication performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720372837.8U CN206658304U (en) | 2017-04-11 | 2017-04-11 | A kind of system of expansion 2G Internet of Things field communication performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206658304U true CN206658304U (en) | 2017-11-21 |
Family
ID=60318101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720372837.8U Expired - Fee Related CN206658304U (en) | 2017-04-11 | 2017-04-11 | A kind of system of expansion 2G Internet of Things field communication performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206658304U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110167010A (en) * | 2019-06-26 | 2019-08-23 | 上海果通通信科技股份有限公司 | A kind of communication switching device and method for Internet of Things communications module |
-
2017
- 2017-04-11 CN CN201720372837.8U patent/CN206658304U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110167010A (en) * | 2019-06-26 | 2019-08-23 | 上海果通通信科技股份有限公司 | A kind of communication switching device and method for Internet of Things communications module |
| CN110167010B (en) * | 2019-06-26 | 2023-09-08 | 上海优咔网络科技有限公司 | Communication switching device and method for communication module of Internet of things |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171121 |
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| CF01 | Termination of patent right due to non-payment of annual fee |