CN107831426A - SIM card tracer and detection method - Google Patents
SIM card tracer and detection method Download PDFInfo
- Publication number
- CN107831426A CN107831426A CN201711052583.2A CN201711052583A CN107831426A CN 107831426 A CN107831426 A CN 107831426A CN 201711052583 A CN201711052583 A CN 201711052583A CN 107831426 A CN107831426 A CN 107831426A
- Authority
- CN
- China
- Prior art keywords
- sim card
- detection
- serial server
- instruction
- host computer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/0013—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers
Abstract
The present invention's provides a kind of SIM card tracer, it includes test side and host computer, the test side includes SIM card detector, fault indication unit and serial server, and the network interface of power switch, detection button, reset key and the serial server is provided with the test side.Test side design of the present invention is compact, is convenient for carrying, and easy to use.Multiple SIM card detectors are collected using serial server, the data of multiple SIM card detectors can be handled simultaneously, and are communicated by serial server with host computer, realize fast accurate detection.
Description
Technical field
The present invention relates to a kind of SIM card tracer and detection method.
Background technology
As national grid uses the collecting terminal of GPRS technologies to use on a large scale, its matching used SIM card
Purchased on a large scale, these SIM cards come from China Mobile, CHINAUNICOM and China Telecom.During power network field adjustable, warp
The phenomenon that collecting terminal goes offline often is found, by investigation, discovery is greatly some SIM caused by SIM card failure
Card arrearage, some SIM card internal damages.Although these problems are very basic, grass-roots work personnel for power supply administration and
Speech, they are it is not apparent how carry out investigation and the troubleshooting of SIM card.In actual use, except the factory of SIM card
Family, operator etc. have outside special SIM card test equipment, and other producers do not make special detection for SIM card.And SIM
Block the detection device of manufacturer, but it is excessively complicated, it is not suitable for grass-roots work librarian use.It is if right one by one using mobile phone
SIM card carries out fault detect, then efficiency is too low.
The content of the invention
For above-mentioned problems of the prior art, it is an object of the invention to provide one kind to be used for electric power grass-roots work
Person detects the SIM card tracer and detection method of SIM card failure, and it is easy to detect, and can detect multiple SIM cards simultaneously.
The technical scheme adopted by the invention to solve the technical problem is that：A kind of SIM card tracer, it includes detection
End and host computer, the test side include SIM card detector, fault indication unit and serial server, set in the test side
It is equipped with the network interface of power switch, detection button, reset key and the serial server；
The SIM card detector includes BBP and the SIM card that is connected respectively with the BBP detect seat,
Memory, radio-frequency module and RS232 interface；
The serial server is connected by network interface with the host computer, and the host computer is used for the parameter before detecting
Set, send detection packet to the serial server, and show testing result；
The serial server is connected by RS232 interface with the SIM card detector, and serial server will be described upper
The detection resolve packet of machine is instructed into RS232 serial ports, and the instruction of RS232 serial ports is transferred into corresponding SIM card detector；Institute
State after SIM card detector receives the instruction of serial server and carry out corresponding detection operation；Serial server is by the SIM card
The data summarization of detector detection, which is sent on the host computer, to be shown；
The fault indication unit includes SIM card insertion indicator lamp, for indicating whether SIM card inserts SIM card detection seat；
Halt indicator, for indicating whether SIM card is stopped status；Malfunction indicator lamp, for indicate SIM card whether failure.
Further, the detection packet includes PIN code detection instruction, ICCID detects instruction, signal strength detection refers to
Order and network type detection instruction.
Further, the SIM card holder is arranged on the edge of the test side；In the side of each SIM card holder point
SIM card insertion indicator lamp, halt indicator and malfunction indicator lamp are not provided with.
Further, the test side also passes through I/O pins and each base including single-chip microcomputer U1, the single-chip microcomputer U1
Provided with processor connects；The display of the SIM card number for showing normal, failure and/or shutdown is provided with the test side
Screen；Detection button, reset key and the display screen are connected with the single-chip microcomputer U1 respectively.
The invention provides a kind of SIM card fault detection method, comprise the following steps：
A, whether detection SIM card inserts SIM card detection seat, and is indicated with indicator lamp；
B, parameter setting is carried out on host computer, the parameter includes screens, the detection of each SIM card that selection needs to test
Seat is with the Serial Port Transmission speed of serial server and to test the type of SIM card.
C, host computer sends detection packet to serial server；
D, serial server instructs the detection resolve packet of the host computer into RS232 serial ports, and by RS232 serial ports
Instruction is transferred to corresponding SIM card detector；
E, the SIM card detector carries out corresponding detection operation after receiving the instruction of serial server, by detection
Result data is sent to serial server；
F, serial server, which collects result data, is sent to the host computer, and is shown on host computer.
Further, in the step e, after the completion of SIM card detector detection, directly examined in corresponding SIM card
Survey and result instruction is carried out on the indicator lamp of seat side.
Further, the detection packet includes PIN code detection instruction, ICCID detects instruction, signal strength detection refers to
Order and network type detection instruction.
The beneficial effects of the invention are as follows：
The test side design of the present invention is compact, is convenient for carrying, and easy to use.Using serial server by multiple SIM cards
Detector collects, and can handle the data of multiple SIM card detectors simultaneously, and is communicated by serial server with host computer, real
Fast accurate detection is showed.
Indicator lamp is set on test side, can directly distinguish the situation of each SIM card, it is not necessary to checked on host computer
(specific fault message can be checked on host computer).
Pass through PIN code detection instruction, ICCID detections instruction, signal strength detection instruction and network type detection instruction
Detection can accurately differentiate the situation of SIM card.
The present invention is a portable instrument that SIM card failure discrimination is carried out for electric power grass-roots work person, has filled up the country
The blank of SIM card fault detect in outer power system, plenty of time, manpower and goods and materials cost are saved for power system.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are the present invention
Part preferred embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the theory diagram of the present invention；
Fig. 2 is the test side circuit theory diagrams of the present invention；
Fig. 3 is a kind of test side structural representation of the present invention；
Fig. 4 is the detection method flow chart of the present invention.
Embodiment
1-4 is described in detail to the embodiment of the present invention below in conjunction with the accompanying drawings：
The present invention includes test side and host computer, and the test side includes SIM card detector, fault indication unit and serial ports
Server, the network that power switch, detection button, reset key and the serial server are provided with the test side connect
Mouthful.The general principles of the present invention are that SIM card to be detected is put into SIM card detector, pass through message interaction, reading SIM card
Information, and wireless network connection is carried out with SIM card information, if successful connection, SIM card detector will send successful message,
The message is up to serial server by RS232 interface, and after serial server organizes data, data summarization is sent to
The display unit of position machine is shown；Meanwhile testing result can be shown in test side in the form of indicator lamp.
The serial server is connected by network interface with the host computer, and network interface uses RJ-45 interfaces, RJ-
The Ethernet interface such as 11 interfaces, SC optical fiber interfaces, it is, of course, also possible to using wireless WIFI module.The host computer is used to detect
Preceding parameter setting, detection packet is sent to the serial server, and show testing result.What is set on host computer is main
Parameter is to select to need the screens (can test 8 SIM cards simultaneously, several SIM cards can also be selected to test) tested, each screens
Serial Port Transmission speed, test the type (2G, 3G or 4G, or all test) of SIM card.
The serial server is connected by RS232 interface with the SIM card detector, and serial server receives described
The instruction of RS232 serial ports is parsed into after the detection packet of host computer, corresponding SIM card detector is transferred to after repacking.Institute
State SIM card detector and receive and detection operation is carried out according to instruction after the instruction of serial server.The detection packet includes
PIN code detection instruction, ICCID detections instruction, signal strength detection instruction and network type detection instruction.
Specifically, the detection process of SIM card detector：
1st, PIN code detects.PIN, is also PIN1 codes, long 4, set by user oneself (initial value as 1234 or
0000), belong to the password of SIM card, for protecting the safety of SIM card, prevent SIM card from being used without permission.Detect first
SIM card can just be accessed by whether inputting PIN code.
2nd, ICCID is detected, ICCID is the unique identification number being solidificated in SIM card, shares 20 bit digitals composition, data
Form is defined as follows：
Such as：898600 9F SS YY G XXXXXX Chk
898600 glands
The last position of 9 mobile service Numbers for access
F function digits, fix tentatively as 0
SS represents province numbering
Title of an emperor's reign when YY works out ICCID (two after taking)
XXXXXX is by each office's self-defining
G represents SIM card vendor number
Chk check bit
According to ICCID, following several situations are can confirm that：
(1) without SIM card
(2) SIM card nullified
(3) SIM card shut down
(4) data SIM card
(5) normal SIM card
(6) SIM card (CDMA) of different systems.
3rd, detection signal intensity
Detection signal intensity CSQ, by instructing AT+CSQ, module returns to current signal quality, such as：
AT+CSQ
+CSQ：28,0
28 be exactly received signal strength RSSI, and -113dBm+ (rssi*2) is exactly signal intensity
Wherein 0 represents the bit error rate.
4th, network type is detected
Virtual network operator and network formats (2G, 3G, 4G) information are detected, Virtual network operator is read and network formats sends AT
Instruct AT+COPS
Response：+COPS：Network is not found in 0OK, expression
Response：+COPS：, 0,0, " UNICOM " OK,
First parameter is network MODE, 2G；UNICOM：UNICOM.
4 steps of the above detect success, then host computer thinks that SIM card is in good condition.
The data summarization that the SIM card detector detects is sent on the host computer and shown by serial server.
Being particularly shown content includes：PIN code detects whether to obtain correct response；Detected according to ICCID, show no SIM card, nullify
SIM card, the SIM card shut down, data SIM card, the SIM card (CDMA) of normal SIM card and different systems；Show signal intensity；
Show network type.
The fault indication unit includes SIM card insertion indicator lamp, for indicating whether SIM card inserts SIM card detection seat；
Halt indicator, for indicating whether SIM card is stopped status；Malfunction indicator lamp, for indicate SIM card whether failure.Specifically
, the indicating mode of malfunction indicator lamp can be as follows：SIM card insertion indicator lamp is an independent LED, is not inserted into SIM
It is red during card, is green after insertion SIM card.Halt indicator and malfunction indicator lamp use a LED, when failure is
During shutdown, LED is yellow, and when other failures of SIM card, LED is red, and when SIM card is normal, LED is green.Pass through
In test side design error failure indicator lamp, grass-roots work personnel can be allowed intuitively to differentiate which SIM card failure, it is more convenient.
The outline structural diagram of a kind of test side 1 as shown in Figure 3, the SIM card holder 2 are arranged on the test side 1
Edge.SIM card insertion indicator lamp 3, halt indicator and indicating fault are respectively arranged with the side of each SIM card holder 2
Lamp shares a three-color LED light 4.The SIM card for showing normal, failure and/or shutdown is provided with the test side 1
Several display screens 5.Display screen 5 preferably uses LCD screen, is directly displayed on screen " normal：XX ", " failure：XX ", " stop
Machine：XX ".In detection process, the quantity of the various SIM cards of the automatic stored counts of single-chip microcomputer U1, display screen 5 is then shown in
On.The top of test side 1 is provided with network interface 6, power switch 7, detection button 8 are set in the lower section of test side 1, resetted
Button 9.
The test side circuit theory of the present invention is briefly described with reference to Fig. 2：The SIM card detector includes base band
Processor U2 and the SIM card detection seat SIM-CARD being connected respectively with the BBP U2, memory (memory and base band
Processor is connected as prior art, therefore, for the purpose of clarity, being not drawn into memory circuitry in Fig. 2), radio-frequency module ANT,
RS232 interface and power supply.For power supply, lithium battery is set in test side, and powered equipped with power management chip for equipment, electricity
Source control chip can use HIP6301 chips or IS6537 chips, and+5V and VCC voltages are provided with power management chip, for detection
End power supply.Present invention employs eight SIM card detectors, respectively with serial server by RS232 interface, in order to which view is clear
It is clear, a SIM card detector is only depicted in Fig. 2.It should be noted that BBP is an important portion of mobile phone
Part, equivalent to one protocol processor are responsible for data processing and storage, and primary clustering is digital signal processor (DSP), micro-control
The units such as device (MCU) processed, internal memory (SRAM, Flash).BBP is existing product, is not being repeated herein.In Fig. 2 only
BBP basic circuit related to the present invention is only gived, other unrelated circuits have done corresponding omission.In the present invention, also
The technical grade gsm module Q2403A of French WAVECOM companies can be used as SIM card detector, the module by radio-frequency module,
Baseband processing chip, memory and SIM card circuit etc. have been integrated on one piece of wiring board, easy to use.RS232 interface circuit by
Triode Q1 and triode Q2 and corresponding resistor and electric capacity composition, triode Q1 and triode Q2 are as level conversion switch.
SIM card detection seat SIM-CARD is connected with voltage-regulator diode VT1.LED1 is that SIM card inserts indicator lamp, and LED2 is halt indicator
With the shared lamp of malfunction indicator lamp.LED3 is power supply indicator.The present invention is connected using single-chip microcomputer U1 with BBP U2, single
Piece machine U1 I/O pins correspondingly connect the GPIO6 pins and GPIO5 pins of each BBP.Single-chip microcomputer U1 in Fig. 2
P0.2 pins and P0.3 pins correspondingly connect BBP U2 GPIO6 pins and GPIO5 pins.Set on single-chip microcomputer U1
Detection button SB2 and reset key SB1.For showing that the display screen of SIM card number uses LCD screen, it connects with single-chip microcomputer U1
Connect, RESPACK-8 is exclusion in Fig. 2.As Pen-down detection button SB2, single-chip microcomputer U1 sends detection to each BBP
Signal.When pressing reset key SB1, single-chip microcomputer U1 sends reset signal, each BBP institute to each BBP
SIM card detector reset, wait it is next detection instruction.But when pressing reset key SB1, single-chip microcomputer U1 counting work
Do not stop, but persistently add up, result is shown on a display screen, Counts can just stop when closing power supply.
The invention provides a kind of SIM card fault detection method, comprise the following steps：
The SIM card to be detected is inserted in test side, is then connected test side with host computer, opens test side power supply.
A, whether detection SIM card in test side inserts SIM card detection seat, after inserting SIM card, if SIM card detects with SIM card
Seated connection touches well, then SIM card insertion indicator lamp is green, if be not inserted into SIM card or SIM card detects seated connection with SIM card
Tactile bad, then SIM card insertion indicator lamp is red.
B, carry out parameter setting on host computer, selection needs the screens tested, if only detect one of those or
Several, then the SIM card where the SIM card that selection needs to detect on screen detects sequence number corresponding to seat.Can also be simultaneously
Test 8 SIM cards.The Serial Port Transmission speed of each SIM card detection seat and serial server can also be set.Set what is detected
The type (2G, 3G or 4G, or all tests) of SIM card.
C, after parameter setting is good, the detection or from test side Pen-down detection button since upper computer selecting, host computer to
Serial server sends detection packet；Detecting packet includes PIN code detection instruction, ICCID detections instruction, signal intensity inspection
Instruction and network type detection instruction are surveyed, the instruction of this four projects has been said in the detection process of above-mentioned SIM card detector
It is bright, repeat no more herein.
D, serial server instructs the detection resolve packet of the host computer into RS232 serial ports, and by RS232 serial ports
Instruction is transferred to corresponding SIM card detector.
E, the SIM card detector carries out corresponding detection operation after receiving the instruction of serial server, by detection
Result data is sent to serial server.Meanwhile after the completion of SIM card detector detection, directly examined in corresponding SIM card
Survey and result instruction is carried out on the indicator lamp of seat side.The indicating mode of malfunction indicator lamp has illustrated in described above.
F, serial server, which collects result data, is sent to the host computer, and is shown on host computer.Display
As a result it is normal to include which SIM card, which SIM card failure, and specific fault message is provided according to the response of detection instruction.
Combination accompanying drawing described above is described above in detail to the preferred embodiment of the present invention and embodiment, but the present invention is not
The above-described embodiment and examples are confined to, for those skilled in the art, are not departing from structure of the present invention
On the premise of think of, some other improvement and modification can also be made, these improvement and modification also should be regarded as the protection model of the present invention
Enclose.
Claims (7)
1. a kind of SIM card tracer, it is characterized in that, it includes test side and host computer, and the test side is examined including SIM card
Survey device, fault indication unit and serial server, be provided with the test side power switch, detection button, reset key and
The network interface of the serial server；
The SIM card detector includes BBP and the SIM card being connected respectively with BBP detection seat, storage
Device, radio-frequency module and RS232 interface；
The serial server is connected by network interface with the host computer, and the host computer is used for the parameter before detecting and set
Put, send detection packet to the serial server, and show testing result；
The serial server is connected by RS232 interface with the SIM card detector, and serial server is by the host computer
Detect resolve packet to instruct into RS232 serial ports, and the instruction of RS232 serial ports is transferred to corresponding SIM card detector；It is described
SIM card detector carries out corresponding detection operation after receiving the instruction of serial server；Serial server examines the SIM card
The data summarization of survey device detection, which is sent on the host computer, to be shown；
The fault indication unit includes：SIM card inserts indicator lamp, for indicating whether SIM card inserts SIM card detection seat；Stop
Machine indicator lamp, for indicating whether SIM card is stopped status；Malfunction indicator lamp, for indicate SIM card whether failure.
2. SIM card tracer according to claim 1, it is characterized in that, the detection packet detects including PIN code
Instruction, ICCID detections instruction, signal strength detection instruction and network type detection instruction.
3. SIM card tracer according to claim 1, it is characterized in that, the SIM card holder is arranged on the test side
Edge；SIM card insertion indicator lamp, halt indicator and indicating fault are respectively arranged with the side of each SIM card holder
Lamp.
4. SIM card tracer according to claim 1, it is characterized in that, the test side also includes single-chip microcomputer U1, institute
Single-chip microcomputer U1 is stated to be connected with each BBP by I/O pins；It is provided with the test side for showing just
Often, the display screen of failure and/or the SIM card number of shutdown；The detection button, reset key and display screen respectively with the list
The U1 connections of piece machine.
5. a kind of SIM card fault detection method, it is characterised in that comprise the following steps：
A, whether detection SIM card inserts SIM card detection seat, and is indicated with indicator lamp；
B, carry out parameter setting on host computer, the parameter include the screens that selection needs to test, each SIM card detection seat with
The Serial Port Transmission speed of serial server and the type that test SIM card.
C, host computer sends detection packet to serial server；
D, serial server instructs the detection resolve packet of the host computer into RS232 serial ports, and RS232 serial ports is instructed
It is transferred to corresponding SIM card detector；
E, the SIM card detector carries out corresponding detection operation after receiving the instruction of serial server, by the result of detection
Data are sent to serial server；
F, serial server, which collects result data, is sent to the host computer, and is shown on host computer.
6. SIM card fault detection method according to claim 5, it is characterised in that in the step e, in the SIM card
After the completion of detector detection, directly result instruction is carried out on the indicator lamp of corresponding SIM card detection seat side.
7. SIM card fault detection method according to claim 5, it is characterised in that the detection packet includes PIN code
Detection instruction, ICCID detections instruction, signal strength detection instruction and network type detection instruction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711052583.2A CN107831426A (en) | 2017-10-30 | 2017-10-30 | SIM card tracer and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711052583.2A CN107831426A (en) | 2017-10-30 | 2017-10-30 | SIM card tracer and detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107831426A true CN107831426A (en) | 2018-03-23 |
Family
ID=61651307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711052583.2A Pending CN107831426A (en) | 2017-10-30 | 2017-10-30 | SIM card tracer and detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107831426A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109365305A (en) * | 2018-10-09 | 2019-02-22 | 刘爱民 | For industrial Internet of Things or the SIM card fault detection case of logistics system |
| CN110022573A (en) * | 2019-04-15 | 2019-07-16 | Oppo广东移动通信有限公司 | Smart card detection method and electronic equipment |
| CN110381498A (en) * | 2019-06-28 | 2019-10-25 | 深圳市奥克多普科技有限公司 | SIM card pond, server, the method and system alerted for SIM card pond |
| CN113315674A (en) * | 2021-04-14 | 2021-08-27 | 国网山东省电力公司淄博供电公司 | Device for quickly judging whether SIM card can be connected to network or not |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201039272Y (en) * | 2006-09-28 | 2008-03-19 | 江苏天泽信息产业有限公司 | SIM card testing device |
| CN201440667U (en) * | 2009-06-18 | 2010-04-21 | 深圳市同洲电子股份有限公司 | Mobile terminal with SIM card detecting device |
| CN202563517U (en) * | 2011-12-31 | 2012-11-28 | 国民技术股份有限公司 | RFID-SIM card testing device |
| CN104754620A (en) * | 2013-12-31 | 2015-07-01 | 上海晨兴希姆通电子科技有限公司 | Detecting device and method for mobile communication module |
| CN105357662A (en) * | 2015-11-30 | 2016-02-24 | 国网浙江省电力公司绍兴供电公司 | Electric site acquisition SIM (Subscriber Identity Module) card detection system |
| CN205902092U (en) * | 2016-05-30 | 2017-01-18 | 深圳优克云联科技有限公司 | SIM card management equipment |
-
2017
- 2017-10-30 CN CN201711052583.2A patent/CN107831426A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201039272Y (en) * | 2006-09-28 | 2008-03-19 | 江苏天泽信息产业有限公司 | SIM card testing device |
| CN201440667U (en) * | 2009-06-18 | 2010-04-21 | 深圳市同洲电子股份有限公司 | Mobile terminal with SIM card detecting device |
| CN202563517U (en) * | 2011-12-31 | 2012-11-28 | 国民技术股份有限公司 | RFID-SIM card testing device |
| CN104754620A (en) * | 2013-12-31 | 2015-07-01 | 上海晨兴希姆通电子科技有限公司 | Detecting device and method for mobile communication module |
| CN105357662A (en) * | 2015-11-30 | 2016-02-24 | 国网浙江省电力公司绍兴供电公司 | Electric site acquisition SIM (Subscriber Identity Module) card detection system |
| CN205902092U (en) * | 2016-05-30 | 2017-01-18 | 深圳优克云联科技有限公司 | SIM card management equipment |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109365305A (en) * | 2018-10-09 | 2019-02-22 | 刘爱民 | For industrial Internet of Things or the SIM card fault detection case of logistics system |
| CN109365305B (en) * | 2018-10-09 | 2020-11-10 | 诸暨市御隆智能科技有限公司 | SIM card fault detection box for industrial Internet of things or logistics system |
| CN110022573A (en) * | 2019-04-15 | 2019-07-16 | Oppo广东移动通信有限公司 | Smart card detection method and electronic equipment |
| CN110022573B (en) * | 2019-04-15 | 2022-06-14 | Oppo广东移动通信有限公司 | Smart card detection method and electronic equipment |
| CN110381498A (en) * | 2019-06-28 | 2019-10-25 | 深圳市奥克多普科技有限公司 | SIM card pond, server, the method and system alerted for SIM card pond |
| CN113315674A (en) * | 2021-04-14 | 2021-08-27 | 国网山东省电力公司淄博供电公司 | Device for quickly judging whether SIM card can be connected to network or not |
| CN113315674B (en) * | 2021-04-14 | 2024-04-05 | 国网山东省电力公司淄博供电公司 | Quick discriminating device of whether SIM card can networking |
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Application publication date: 20180323 |