CN209448894U - A kind of anti-lost burglary-resisting installation of small-sized luggage based on hybrid positioning technology - Google Patents
A kind of anti-lost burglary-resisting installation of small-sized luggage based on hybrid positioning technology Download PDFInfo
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- CN209448894U CN209448894U CN201920358543.9U CN201920358543U CN209448894U CN 209448894 U CN209448894 U CN 209448894U CN 201920358543 U CN201920358543 U CN 201920358543U CN 209448894 U CN209448894 U CN 209448894U
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Abstract
The utility model discloses a kind of anti-lost burglary-resisting installation of small-sized luggage based on hybrid positioning technology, it is related to Internet of Things radio network technique field, the anti-lost burglary-resisting installation of small-sized luggage based on hybrid positioning technology, including GPS module, gsm module, WiFi module, embedded board, Internet of Things cloud platform and mobile terminal APP, GPS satellite locating module, including GPS positioning satellite A, GPS positioning satellite B, GPS positioning satellite C and GPS positioning satellite D, LBS foundation location module, including the base station No.1 mobile operator, No. two base stations mobile operator and No. three base stations mobile operator, WiFi locating module, including AP signal A+MAC address A, AP signal B+MAC address B, AP signal C+MAC address C, location-based service quotient, L BS base station location information and GPS positioning information.The anti-lost burglary-resisting installation of small-sized luggage based on hybrid positioning technology, luggage location information can be monitored by providing, and can actively be alarmed to user and be helped the application given for change.
Description
Technical field
It is specially a kind of based on the small-sized of hybrid positioning technology the utility model relates to Internet of Things radio network technique field
The anti-lost burglary-resisting installation of luggage.
Background technique
In recent years, with the emerging development of Internet of Things industry, more and more powerful Internet of Things cloud platforms are also flourishing
Development.They provide open Internet of Things access platform for hardware developers, provide real-time data processing and stablize safety
Sensor states monitor cloud service.Platform of internet of things can be divided into three levels.Equipment is linked by access layer by access gateway
Platform realizes the control message ability that data and receiving platform are uploaded to platform.Podium level is the core of this project, main to complete
Facility information handles while providing interface for application layer.Application layer using platform provide application programming interfaces complete Internet of Things and
The application of mobile APP fusion.
The equipment of access layer is GPS module, i.e. global positioning system (Global Positioning System).Simply
Say that this is the satellite system being made of 24 satellites covering the whole world in ground.This system can guarantee at any time, ground
Any point can observe 4 satellites simultaneously on ball, to guarantee that satellite can collect the longitude and latitude and height of the observation point
Degree, to realize the functions such as navigation, positioning, time service.This technology can be used to vector aircraft, ship, vehicle and individual, peace
Entirely, it exactly along selected route, arrives punctually at the destination.GPS geo-location system consists of three parts: space segment-
GPS constellation；Ground control segment-ground monitoring system；Customer equipment part-GPS signal receiver.
However there is GPS signal stronger limitation LBS location technology occur in order to make up these limitations.
LBS location technology (Location Based Service), is generally used for mobile phone user, it is location-based
Service passes through telecommunications, the radio communication network (such as GSM net, CDMA net) of mobile operator or external positioning method (such as GPS)
The location information (geographical coordinate or geodetic coordinates) for obtaining mobile terminal user, in GIS (Geographic Information
System, GIS-Geographic Information System) platform support under, provide a kind of value-added service of respective service for user.
LBS is considered as the Killer business of mobile field, is generally had an optimistic view of by industry, also there is numerous company's examination this neck of water
Domain.At the beginning of 2010, knob net, play well four directions, Jie Pangdeng venture company emerge in large numbers one after another, the portal companies such as Netease, Tencent, Sina
It puts into the research and development of LBS one after another or even the traditional communications manufacturers such as China Mobile also starts to try water LBS.
LBS technical threshold is lower, easy to operate effective.Itself do not have purpose and stickiness, LBS is only used as tool appearance
In certain product.By LBS, the position of oneself can be quickly positioned on map.One mature LBS industry chain (supply chain), needs
The perfection of " user-LBS provider-businessman " agrees with.With smart phone large-area applications, GPS is widely used, LBS positioning
It has been widely used.
Compared to GPS positioning technology, LBS location technology can GPS signal it is weaker even without GPS signal the case where
Under, data acquisition is carried out by the base station of mobile operator, as long as and the cell phone network coverage region, equal non-blind area,
But its accuracy, it is slightly poorer to compare GPS.
WiFi is that one kind can be wirelessly mutual by the various movements such as PC, handheld device or immobile terminal
The technology of connection, it is a kind of wireless network communication technique.It is able to access that the place of WiFi network is referred to as hot spot.Due to WiFi skill
The outstanding advantages of art: wireless coverage is wide, and the covering radius of the distance compared to ten meters of bluetooth or so, WiFi can reach 100
Rice；Transmission speed is fast, can achieve 54Mbps, and 802.11N even can achieve 600Mbps；Manufacturer's entry threshold is low, as long as flower
A hot spot is arranged in seldom cost, and user can connect internet by it.So WiFi technology becomes in recent years
Focus concerned by people.
WiFi technology is a kind of completely new information acquisition platform, complicated big model can be realized in field being widely applied
Positioning, monitoring and tracking task are enclosed, and network node self poisoning is basis and the premise of most of applications.It is current popular
WiFi positioning be Wireless LAN series standard IEEE802.11 a kind of location solution.The system uses experience
The mode that test and signal propagation model combine, is easily installed, needs seldom base station, can use identical bottom wireless network
Structure, system overall accuracy are high.
In existing product, many anti-lost burglary-resisting installations are all fixed by GPS satellite location technology, the base station LBS
Position technology and WiFi location technology these three technologies are used in mixed way to realize positioning, but are all by anti-lost burglary-resisting installation
One-sided positioning, to judge whether the article where equipment is in abnormal.Such as, an early warning range delimited on the map of mobile terminal
Circle, when the location information of equipment end has exceeded early warning range circle, equipment just carries out warning note to user terminal.However this type
Equipment on vehicle in traveling because losing its early warning effect during device location information is also constantly moving.
Utility model content
(1) the technical issues of solving
In view of the deficiencies of the prior art, it is anti-lost to provide a kind of small-sized luggage based on hybrid positioning technology for the utility model
Burglary-resisting installation is lost, solves in the anti-lost burglary-resisting installation of tradition, can not be carried out when people is subjected to displacement simultaneously with article anti-lost
Lose antitheft problem.
(2) technical solution
In order to achieve the above object, the utility model is achieved by the following technical programs:
A kind of anti-lost burglary-resisting installation of small-sized luggage based on hybrid positioning technology, including GPS module, gsm module, WiFi
Module, embedded board, Internet of Things cloud platform and mobile terminal APP；
RXD connection in TXD and embedded board in the GPS module, RXD and insertion in the GPS module
The connection of TXD in formula development board；
Described gsm module RX mouthfuls and TX mouthfuls connect with the GPIO of embedded board；
Described WiFi module RX mouthfuls and TX mouthfuls connect with the GPIO of embedded board；
The connecting pin of the embedded board is connect with the connecting pin two-way signaling of Internet of Things cloud platform, the Internet of Things
The connecting pin of cloud platform is connect with the connecting pin two-way signaling of mobile terminal APP；
GPS satellite locating module, including GPS positioning satellite A, GPS positioning satellite B, GPS positioning satellite C and GPS positioning are defended
Star D；
LBS foundation location module, including the mobile fortune of the base station No.1 mobile operator, No. two base stations mobile operator and No. three
Seek Shang Jizhan；
WiFi locating module, including the address the AP signal A+MAC address A, AP signal B+MAC B, AP signal C+MAC address C,
Location-based service quotient, LBS base station location information and GPS positioning information.
Optionally, the output of the GPS positioning satellite A, GPS positioning satellite B, GPS positioning satellite C and GPS positioning satellite D
End is connect with the input end signal of GPS module, and the output end of the GPS module and the input terminal of embedded board are electrically connected
It connects, the output end of the embedded board is connect with the input end signal of Internet of Things cloud platform, the Internet of Things cloud platform
Output end is connect with the input end signal of mobile terminal APP.
Optionally, the base station the No.1 mobile operator, No. two base stations mobile operator and No. three base stations mobile operator
Output end connect with the input end signal of gsm module, the output end of the gsm module and the input terminal of embedded board
Electrical connection, the output end of the embedded board are connect with the input end signal of Internet of Things cloud platform, and the Internet of Things cloud is flat
The output end of platform is connect with the input end signal of mobile terminal APP.
Optionally, the output of the address the address AP signal A+MAC A, AP signal B+MAC B and AP signal C+MAC address C
End is connect with the input end signal of WiFi module, and the input terminal of the WiFi module output end and embedded board is electrically connected
It connects, the output end of the embedded board is connect with the input end signal of location-based service quotient, the output of the location-based service quotient
End is connect with the input end signal of LBS base station location information and GPS positioning information respectively, the LBS base station location information and GPS
The output end of location information is connect with the input end signal of Internet of Things cloud platform, the output end of the Internet of Things cloud platform and shifting
The input end signal of moved end APP connects.
(3) beneficial effect
The utility model provides a kind of anti-lost burglary-resisting installation of small-sized luggage based on hybrid positioning technology, has following
The utility model has the advantages that
(1), it is somebody's turn to do the anti-lost burglary-resisting installation of small-sized luggage based on hybrid positioning technology, by judging between equipment and user
Relative distance whether exceed early warning value to provide alarm, and figure is smaller, can independently determine placement location.
(2), should anti-lost burglary-resisting installation of small-sized luggage based on hybrid positioning technology, by by hybrid location system, object
Networking cloud platform and mobile APP are mutually merged, and luggage location information can be monitored by providing, and can actively be alarmed to user and be helped to look for
The application returned.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model；
Fig. 2 is the GPS satellite positioning flow figure of the utility model；
Fig. 3 is the LBS base station location flow chart of the utility model；
Fig. 4 is the WiFi positioning flow figure of the utility model.
In figure: 1, GPS module；2, gsm module；3, WiFi module；4, embedded board；5, Internet of Things cloud platform；6,
Mobile terminal APP；7, GPS positioning satellite A；8, GPS positioning satellite B；9, GPS positioning satellite C；10, GPS positioning satellite D；11, one
Number base station mobile operator；12, No. two base stations mobile operator；13, No. three base stations mobile operator；14, AP signal A+MAC
Location A；15, AP signal B+MAC address B；16, AP signal C+MAC address C；17, location-based service quotient；18, LBS base station location information；
19, GPS positioning information.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable
The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is orientation based on the figure
Or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limit to the utility model
System.
In the present invention unless specifically defined or limited otherwise, term " setting ", " connected ", " connects " installation "
Connect ", the terms such as " fixation " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection；It can be machine
Tool connection；It can be directly connected, it can also be indirectly connected through an intermediary.For those of ordinary skill in the art and
Speech, can understand the concrete meaning of above-mentioned term in the present invention as the case may be.
Fig. 1-4 is please referred to, the utility model provides a kind of technical solution:
A kind of anti-lost burglary-resisting installation of small-sized luggage based on hybrid positioning technology, including GPS module 1, gsm module 2,
WiFi module 3, embedded board 4, Internet of Things cloud platform 5 and mobile terminal APP6, embedded board 4 are that GPS module 1 provides
Power supply and data-handling capacity needed for module, and GPS module 1 will start to carry out searching star when obtaining wake up instruction operation
Operation, determines equipment present position, when triggering LBS base station location technology, SIM card in gsm module 2 also will by with close on
Base station carry out data transmit to determine equipment present position, WiFi module 3 may be implemented to the search of AP signal around and adopt
Collect function, two positioning systems is assisted to carry out precise positioning；
TXD in GPS module 1 is connect with the RXD in embedded board 4, RXD and embedded development in GPS module 1
The connection of TXD in plate 4, by way of serial communication, the data that will tentatively obtain are transferred in embedded board 4；
2RX mouthfuls and TX mouthfuls of gsm module connect with the GPIO of embedded board 4, will be preliminary by way of serial communication
The data of acquisition are transferred in embedded board 4；
3RX mouthfuls and TX mouthfuls of WiFi module connect with the GPIO of embedded board 4, are similarly by serial communication, directly
The data that will tentatively obtain are connect, are transferred in embedded board 4；
After serial communication, embedded board 4 obtains the GPS signal data of preliminary treatment.Pass through function GetLocation
() function, embedded board 4 can parse to obtain the GPS positioning data presented with number, and show.
After serial communication, LBS base station location data are also communicated on embedded board 4, pass through mobile operator's
Data are parsed and are calculated by API, embedded board 4, can obtain the detailed location information that user is currently located.
Its Main is, by the TOA (Time of Arrival, arrival time) of different base station descending pilot frequency or
TDOA (Time Difference of Arrival, reaching time-difference), according to the measurement result and combine base station coordinate, one
As use triangle formula algorithm for estimating, it will be able to calculate the position of equipment.
Embedded board 4 gets the AP signal and MAC Address that the scanning of WiFi module 3 is collected, because MAC Address has
Uniqueness can submit MAC Address to location-based service quotient 17 by the API of location-based service quotient 17, obtain the location of MAC Address
Information, according to the location information of multiple AP, in the degree of strength according to AP signal, the API of calling station service provider 17 can be obtained
To the detailed location information of equipment；
The connecting pin of embedded board 4 is connect with the connecting pin two-way signaling of Internet of Things cloud platform 5, Internet of Things cloud platform
5 connecting pin is connect with the connecting pin two-way signaling of mobile terminal APP6；
GPS satellite locating module, including GPS positioning satellite A7, GPS positioning satellite B8, GPS positioning satellite C9 and GPS are fixed
Position satellite D10, with GPS module 1 be data acquisition node when, GPS module 1 receives constantly wide to the earth from GPS satellite
It broadcasts and send, centre frequency is the C/A code signal of 1575.42MHz, and demodulates to it, to obtain the track of GPS satellite
Some other system parameter such as parameter, satellite clock correction, after obtaining at least four satellite-signals, by operation with each defend
The pseudo-distance of star finds out the information such as longitude, the latitude of GPS module 1 using unambiguous range；
LBS foundation location module, including the base station mobile operator 12 of the base station No.1 mobile operator 11, two and No. three shiftings
Dynamic operator base station 13, LBS positioning is with gsm module 2 for data acquisition node, and the SIM in gsm module 2 is to the shifting closed on
Dynamic three base stations of operator issue request signal, and obtain the down-bound pilot frequency signal of base station, and each base station can be obtained in analytic signal
Location information and signal reach data collection point time；
WiFi locating module, including the address the AP signal A+MAC address A14, AP signal B+MAC B15, AP signal C+MAC
Location C16, location-based service quotient 17, LBS base station location information 18 and GPS positioning information 19 are data acquisition section with WiFi module 3
Point can scan and collect the AP signal of surrounding in the case where opening WiFi, regardless of whether encryption, if having connected, even
Signal strength, which is not enough to be shown in, can all be scanned collection in wireless signal list.While receiving these AP signals,
Obtain the MAC Address that these AP signals are broadcast out；
Utilize three positioning systems for being complementary to one another and being independent of each other --- GPS satellite location technology, LBS base station location skill
Art and WiFi location technology position equipment and users' mobile end, and calculate the mode of the two relative distance, determine article
Whether abnormality is in.
A kind of optional technical solution as the utility model:
GPS positioning satellite A7, GPS positioning satellite B8, GPS positioning satellite C9 and GPS positioning satellite D10 output end with
The input end signal of GPS module 1 connects, and the output end of GPS module 1 is electrically connected with the input terminal of embedded board 4, embedded
The output end of development board 4 is connect with the input end signal of Internet of Things cloud platform 5, the output end of Internet of Things cloud platform 5 and mobile terminal
The input end signal of APP6 connects.
A kind of optional technical solution as the utility model:
The output of the base station No.1 mobile operator 11, No. two base stations mobile operator 12 and No. three base stations mobile operator 13
End is connect with the input end signal of gsm module 2, and the output end of gsm module 2 is electrically connected with the input terminal of embedded board 4,
The output end of embedded board 4 is connect with the input end signal of Internet of Things cloud platform 5, the output end of Internet of Things cloud platform 5 with
The input end signal of mobile terminal APP6 connects.
A kind of optional technical solution as the utility model:
The output end of the address the AP signal A+MAC address A14, AP signal B+MAC B15 and AP signal C+MAC address C16 with
The input end signal of WiFi module 3 connects, and 3 output end of WiFi module is electrically connected with the input terminal of embedded board 4, embedded
The output end of development board 4 is connect with the input end signal of location-based service quotient 17, the output end of location-based service quotient 17 respectively with LBS base
Location information of standing 18 is connected with the input end signal of GPS positioning information 19, LBS base station location information 18 and GPS positioning information 19
Output end connect with the input end signal of Internet of Things cloud platform 5, the output end of Internet of Things cloud platform 5 and mobile terminal APP6's
Input end signal connection.
In conclusion the anti-lost burglary-resisting installation of small-sized luggage based on hybrid positioning technology is somebody's turn to do, in use, equipment passes through object
It networks cloud platform interface, it is current to get equipment also by Internet of Things cloud platform interface for Internet of Things cloud platform 5 in connection, mobile phone
Position, and the control of equipment can be obtained.It is powered after device power-up, starts GPS and search star localization process.In equipment
GPS module 1 carries out after searching star processing, obtains the location information that equipment is currently located, and send data to Internet of Things cloud platform 5,
After Internet of Things cloud platform 5 receives data, mobile terminal APP6 is sent information to, and the map on the mobile terminal end APP 6 is by coordinate
It shows, while also displaying together the location information of mobile terminal.When GPS signal is abnormal, equipment first determines whether GPS
Whether signal also has the ability to carry out positioning operation, and such as only GPS signal is weak, and starting WiFi module 3 scans neighbouring AP signal, into
Row auxiliary positioning；As GPS signal has lost normal positioning function or GPS signal is weak and nearby without AP signal both of these case
Under, it activates the SIM card on gsm module 2 and issues signal to the neighbouring base station mobile operator, after obtaining return data, obtain
Location information, and starting WiFi scans AP signal nearby herein, then uses WiFi positioning to carry out auxiliary positioning if any AP signal, such as
No AP signal then be used directly base station location information.
After user takes a seat, early warning value can be set on the APP6 of mobile terminal, when early warning value, which is set, to be completed, mobile terminal
APP6 can be calculated one two by algorithm according to the users' mobile end location information and equipment end location information that it is collected into
The relative distance value of person.In subsequent vehicle operation, if the variation difference of relative distance is greater than this early warning value, mobile terminal APP6 is just
Early warning information can be pushed, and according to the early warning level of user preset, issues the user with the alert ring tone that sound is incremented by step by step.User
Then the position of equipment can be obtained, and give for change by mobile terminal APP6.
It should be noted that in the present invention unless specifically defined or limited otherwise, fisrt feature is in the second spy
It can be that the first and second features directly contact or the first and second features are connect indirectly by intermediary "above" or "below" sign
Touching.Moreover, fisrt feature can be above the second feature " above ", " above " and " above " fisrt feature right above second feature or
Oblique upper, or first feature horizontal height is merely representative of higher than second feature.Fisrt feature second feature " under ", " lower section "
" following " can be fisrt feature and be directly under or diagonally below the second feature, or is merely representative of first feature horizontal height and is less than
Second feature.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (4)
1. a kind of anti-lost burglary-resisting installation of small-sized luggage based on hybrid positioning technology, which is characterized in that including GPS module (1),
Gsm module (2), WiFi module (3), embedded board (4), Internet of Things cloud platform (5) and mobile terminal APP (6)；
TXD in the GPS module (1) is connect with the RXD in embedded board (4), the RXD in the GPS module (1) with
The connection of TXD in embedded board (4)；
RX mouthfuls and TX mouthfuls of the gsm module (2) connect with the GPIO of embedded board (4)；
RX mouthfuls and TX mouthfuls of the WiFi module (3) connect with the GPIO of embedded board (4)；
The connecting pin of the embedded board (4) is connect with the connecting pin two-way signaling of Internet of Things cloud platform (5), the Internet of Things
The connecting pin of net cloud platform (5) is connect with the connecting pin two-way signaling of mobile terminal APP (6)；
GPS satellite locating module, including GPS positioning satellite A (7), GPS positioning satellite B (8), GPS positioning satellite C (9) and GPS
Position location satellite D (10)；
LBS foundation location module, including the base station No.1 mobile operator (11), No. two base stations mobile operator (12) and No. three shiftings
Dynamic operator base station (13)；
WiFi locating module, including AP signal A+MAC address A (14), AP signal B+MAC address B (15), AP signal C+MAC
Location C (16), location-based service quotient (17), LBS base station location information (18) and GPS positioning information (19).
2. a kind of anti-lost burglary-resisting installation of small-sized luggage based on hybrid positioning technology according to claim 1, feature
It is:
The GPS positioning satellite A (7), GPS positioning satellite B (8), GPS positioning satellite C (9) and GPS positioning satellite D (10) it is defeated
Outlet is connect with the input end signal of GPS module (1), output end and embedded board (4) of the GPS module (1)
Input terminal electrical connection, the output end of the embedded board (4) are connect with the input end signal of Internet of Things cloud platform (5), institute
The output end for stating Internet of Things cloud platform (5) is connect with the input end signal of mobile terminal APP (6).
3. a kind of anti-lost burglary-resisting installation of small-sized luggage based on hybrid positioning technology according to claim 1, feature
It is:
The base station the No.1 mobile operator (11), No. two base stations mobile operator (12) and No. three base stations mobile operator (13)
Output end connect with the input end signal of gsm module (2), the output end and embedded board of the gsm module (2)
(4) input terminal electrical connection, the output end of the embedded board (4) and the input end signal of Internet of Things cloud platform (5) connect
It connects, the output end of the Internet of Things cloud platform (5) is connect with the input end signal of mobile terminal APP (6).
4. a kind of anti-lost burglary-resisting installation of small-sized luggage based on hybrid positioning technology according to claim 1, feature
It is:
The output of the AP signal A+MAC address A (14), AP signal B+MAC address B (15) and AP signal C+MAC address C (16)
End is connect with the input end signal of WiFi module (3), and WiFi module (3) output end is defeated with embedded board (4)
Enter end electrical connection, the output end of the embedded board (4) is connect with the input end signal of location-based service quotient (17), institute's rheme
The output end for setting service provider (17) connects with the input end signal of LBS base station location information (18) and GPS positioning information (19) respectively
It connects, input of the output end of the LBS base station location information (18) and GPS positioning information (19) with Internet of Things cloud platform (5)
End signal connection, the output end of the Internet of Things cloud platform (5) are connect with the input end signal of mobile terminal APP (6).
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| CN201920358543.9U CN209448894U (en) | 2019-03-20 | 2019-03-20 | A kind of anti-lost burglary-resisting installation of small-sized luggage based on hybrid positioning technology |
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| CN201920358543.9U CN209448894U (en) | 2019-03-20 | 2019-03-20 | A kind of anti-lost burglary-resisting installation of small-sized luggage based on hybrid positioning technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116112494A (en) * | 2023-04-07 | 2023-05-12 | 北京烽火万家科技有限公司 | Internet of things communication terminal based on three-in-one network |
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2019
- 2019-03-20 CN CN201920358543.9U patent/CN209448894U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116112494A (en) * | 2023-04-07 | 2023-05-12 | 北京烽火万家科技有限公司 | Internet of things communication terminal based on three-in-one network |
| CN116112494B (en) * | 2023-04-07 | 2023-08-22 | 快上云(上海)网络科技有限公司 | Internet of things communication terminal based on three-in-one network |
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