CN209672542U - Data converter and air-conditioner system - Google Patents
Data converter and air-conditioner system Download PDFInfo
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- CN209672542U CN209672542U CN201920370178.3U CN201920370178U CN209672542U CN 209672542 U CN209672542 U CN 209672542U CN 201920370178 U CN201920370178 U CN 201920370178U CN 209672542 U CN209672542 U CN 209672542U
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Abstract
It includes: shell that the utility model, which discloses a kind of data converter and air-conditioner system, the data converter, is provided with the through-hole for thimble insertion；Distribution triggers key, is set in shell, and be correspondingly arranged with through-hole, and distribution triggers key when based on thimble triggering, exports distribution push button signalling；Distribution circuit is electrically connected, for carrying out network connection configuration when receiving distribution push button signalling with distribution triggering key.The problem of the utility model improves the safety of data converter distribution, can solve when carrying out distribution using remote controler come trigger data converter, is easy to appear false triggering.
Description
Technical field
The utility model relates to electronic circuit technology field, in particular to a kind of data converter and air-conditioner system.
Background technique
When providing networking control for household electrical appliance, it usually needs carried out when household electrical appliance enter family to household electrical appliance
Distribution, and the mode for the data converter that the triggering of the remote controler of household electrical appliance is provided with WiFi module carries out.
However, this mode may have the case where false triggering, and in the case where leading to non-user wish, into net state is matched, turn
Parallel operation connect disconnection with server/APP, and internet of things functional cannot use.
Utility model content
The main purpose of the utility model is to propose a kind of data converter and air-conditioner system, it is intended to be solved using distant
Control device carrys out trigger data converter when carrying out distribution, the problem of being easy to appear false triggering.
To achieve the above object, the utility model proposes a kind of data converter, the data converter includes:
Shell is provided with the through-hole for thimble insertion；
Distribution triggers key, is set in the shell, and be correspondingly arranged with the through-hole, and the distribution triggering key exists
When based on thimble triggering, distribution push button signalling is exported；
Distribution circuit is electrically connected, for carrying out when receiving the distribution push button signalling with distribution triggering key
Network connection configuration.
Optionally, the data converter further include:
Distribution signal triggers generation circuit, and input terminal and the distribution triggering of the distribution signal triggering generation circuit are pressed
The output end of key electrical connection, the distribution signal triggering generation circuit is connect with the input terminal of the distribution circuit；The distribution
Signal triggers generation circuit, and described match is triggered for when receiving the distribution push button signalling, exporting distribution trigger signal
Net circuit carries out network connection configuration.
Optionally, distribution signal triggering generation circuit includes photoelectric coupling module, the photoelectric coupling module it is defeated
Entering end is the input terminal that the distribution signal triggers generation circuit, the output end of the photoelectric coupling module and the distribution circuit
Connection.
Optionally, the data converter further includes level holding circuit, the input terminal of the level holding circuit and institute
Distribution triggering is stated by key connection, the level holding circuit, for keeping the distribution key letter of the distribution triggering key output
Number stablize output.
Optionally, the level holding circuit includes first resistor and first capacitor, and the first end of the first resistor is
The output end of the level holding circuit, the second end of the first capacitor are connect with one end of the first capacitor；Described
The other end of one capacitor is grounded.
Optionally, the distribution circuit includes master controller, and the detection foot of the master controller and the distribution signal touch
Send out generation circuit connection；The master controller, in the distribution triggering letter for receiving the distribution triggering generation circuit output
Number when, carry out network connection configuration.
Optionally, the data converter further includes WiFi module, and the WiFi module is connect with the master controller, institute
Master controller is stated by the WiFi module and external control terminal communication connection, to receive the distribution of external control terminal transmission
Information.
Optionally, the master controller is used to start timing when receiving the distribution trigger signal, and in timing
Between when reaching the first preset time, carry out network connection configuration.
Optionally, the master controller is also used to be resetted when timing time reaches the second preset time.
The utility model also proposes a kind of air-conditioner system, including outdoor unit, indoor unit and data conversion as described above
Device, the outdoor unit are connect with the indoor unit, and the converter is connect with the outdoor unit and/or the indoor unit；Wherein,
The data converter includes:
Shell is provided with the through-hole for thimble insertion；
Distribution triggers key, is set in the shell, and be correspondingly arranged with the through-hole, and the distribution triggering key exists
When based on thimble triggering, distribution push button signalling is exported；
Distribution circuit is electrically connected, for carrying out when receiving the distribution push button signalling with distribution triggering key
Network connection configuration.
The present embodiment on the shell of data converter by being arranged through-hole, and in the corresponding setting one in the position of through-hole
Distribution triggers key, allow user according to demand, such as replacement router or family lan leakage replacement password etc.,
When needing distribution again, can by thimble perhaps the card taking needle of mobile phone or other elongated needle point objects insertion through-holes to trigger
Distribution triggers key and distribution push button signalling is exported, to trigger distribution circuit to data conversion when distribution triggering key is pressed
Think highly of new distribution.The utility model improves the safety of data converter distribution, can solve and triggers using remote controler
When data converter carries out distribution, the problem of being easy to appear false triggering.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram of one embodiment of the utility model data converter；
Fig. 2 is the electrical block diagram of one embodiment of the utility model data converter；
Fig. 3 is the schematic structural diagram of the first embodiment for the air-conditioner system that the utility model embodiment is related to；
Fig. 4 is the schematic structural diagram of the second embodiment for the air-conditioner system that the utility model embodiment is related to.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 10 | Shell | 50 | Level holding circuit |
| 10a | Through-hole | 60 | WiFI module |
| 20 | Distribution triggers key | VCC | DC power supply |
| 30 | Distribution circuit | R1 | First resistor |
| 40 | Distribution signal triggers generation circuit | C1 | First capacitor |
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
It is to be appreciated that if related in the utility model embodiment directionality instruction (such as upper and lower, left and right, it is preceding,
Afterwards ...), then directionality instruction is only used for explaining opposite between each component under a certain particular pose (as shown in the picture)
Positional relationship, motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, if relating to the description of " first ", " second " etc. in the utility model embodiment, " first ", " the
Two " etc. description is used for description purposes only, and is not understood to indicate or imply its relative importance or is implicitly indicated meaning
The quantity of the technical characteristic shown." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one
A this feature.
The terms "and/or", only a kind of incidence relation for describing affiliated partner, indicates that there may be three kinds of passes
System, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.In addition, herein
Middle character "/" typicallys represent the relationship that forward-backward correlation object is a kind of "or".
The utility model proposes a kind of data converters, suitable for the household electrical appliance that intelligent control may be implemented, such as
Air-conditioning, washing machine, refrigerator etc., air-conditioning can be on-hook, mobile air conditioner, window machine, cabinet-type air conditioner, and be provided with an outdoor unit 101,
The multi-connected machine of at least two indoor units 102.
Realize that intelligent control usually requires to carry out household electrical appliance networking setting, namely the number by being provided with WiFi module
According to converter, networking control is provided for household electrical appliance.After household electrical appliance installation data converter, need to enter house in household electrical appliance
Distribution is carried out to household electrical appliance when front yard, corresponding service is connected according to the server domain name of wifi internal preset during distribution
Device.Specifically can by receiving the distribution data of mobile terminal output, such as by cell phone application on fixed WiFi channel to number
Broadcast or multicast data packet is issued according to converter, completes network connection configuration.
Referring to FIG. 1 and FIG. 2, in an embodiment of the utility model, which includes:
Shell 10 is provided with the through-hole 10a for thimble insertion；
Distribution triggers key 20, is set in the shell 10, and be correspondingly arranged with the through-hole 10a, the distribution touching
Key 20 is sent out when based on thimble triggering, exports distribution push button signalling；
Distribution circuit 30 is connect with distribution triggering key 20, for when receiving the distribution push button signalling, into
Row network connection configuration.
Wherein, the aperture of through-hole 10a can also use mobile phone certainly in other embodiments slightly larger than the diameter of thimble
Card taking needle or other elongated needle point objects, wait in slightly sharp object insertion through-hole 10a, to trigger distribution triggering key 20.
Distribution triggering key 20 can be set to Self-resetting key, when user needs to carry out distribution, can pass through long-pressing
Self-resetting key, such as 3~10 seconds, to wake up distribution circuit 30, naturally it is also possible to be realized, and passed through using mechanical key
Touch potential wakes up distribution circuit 30, such as when pressing key pressing one time, then it represents that needs to carry out distribution again, when key is pressed
Under twice when, then it represents that be not necessarily to distribution, or indicate be other operating control signals, such as reset signal, distribution circuit 30 is then
Corresponding operation can be executed according to touch potential.
Distribution circuit 30 is equipped with distribution program, in the distribution push button signalling that the distribution triggering key 20 received exports,
It is triggered and executes network connection configuration automatically.
In some embodiments, data converter can also include indicator light circuit, and indicating circuit and distribution circuit 30 connect
It connects, and the control based on distribution circuit 30.In practical application, indicating circuit can use LED light, buzzer lamp acousto-optic element
It realizes, when receiving the control signal of distribution circuit 30, corresponding indicator light can be lighted, or issue corresponding prompt
Voice, thus the working condition for prompting user data converter current.
In some embodiments, which can also include user interface, network interface, camera, RF
(Radio Frequency, radio frequency) circuit, sensor, voicefrequency circuit, WiFi module 60 etc..User interface may include defeated
Enter unit such as keyboard (Keyboard), optional user interface can also include standard wireline interface and wireless interface.Network connects
Mouth may include optionally standard wireline interface and wireless interface (such as WI-FI interface).
It should be noted that in the case where being not provided with human-computer interaction screen or keyboard on the shell 10 of data converter,
When data converter needs to carry out distribution, generally requires through remote controler and distribution triggering is carried out to data converter, and lead to
It crosses mobile terminal and distribution data is sent to data converter, data converter locking pair with radio magnetic wave under WiFi channel
After the WiFi channel answered, the distribution data that mobile terminal is sent is received, completes distribution.However, in such a way that remote controler triggers
There may be the case where false triggering, and in the case where leading to non-user wish, into matching net state, converter and server/
APP connection disconnects, and internet of things functional cannot use.
To solve the above-mentioned problems, the present embodiment on the shell 10 of data converter by being arranged through-hole 10a, and is leading to
One distribution of corresponding setting of the position of hole 10a triggers key 20, allow user according to demand, such as replacement router,
Or family lan leakage replacement password etc., when needing distribution again, can by thimble perhaps the card taking needle of mobile phone or other
Elongated needle point object insertion through-hole 10a is to trigger distribution triggering key 20, and when distribution triggering key 20 is pressed, output distribution is pressed
Key signals, to trigger distribution circuit 30 to data converter again distribution.The utility model improves data converter distribution
Safety, can solve when carrying out distribution using remote controler come trigger data converter, the problem of being easy to appear false triggering.
It is understood that distribution circuit 30 is entering with net state, the indicator light work on converter panel can be triggered
Make, realize fast blink, so that user be made to know the working condition of current converter.If being powered off during distribution, match
When net circuit 30 is interrupted and distribution is not completed, next data converter is powered on, and converter still uses first wife's net information to connect
It connects.
Referring to FIG. 1 and FIG. 2, in one embodiment, the data converter further include:
Distribution signal triggers generation circuit 40, and the input terminal of the distribution signal triggering generation circuit 40 and the distribution are touched
It sends out key 20 to be electrically connected, the output end of the distribution signal triggering generation circuit 40 and the input terminal of the distribution circuit 30 connect
It connects；The distribution signal triggers generation circuit 40, for exporting distribution trigger signal when receiving the distribution push button signalling
Network connection configuration is carried out to trigger the distribution circuit 30.
In practical application, DC power supply VCC is accessed in one end of distribution triggering key 20, distribution triggers the another of key 20
End is connect with distribution circuit 30, and distribution circuit 30 may be realized using microprocessors such as single-chip microcontroller, DSP, and is used in user
When ejector pin contact is transported to net triggering key 20, it is possible that there are the factors such as unstable and cause in shake or DC power supply VCC
The distribution push button signalling of output to microprocessor is unstable, and damages distribution circuit 30.Electricity is generated for this purpose, distribution signal is triggered
Road 40 is set between distribution circuit 30 and distribution triggering key 20, is pressed when distribution triggers key 20, and export distribution and press
When key signals, generation circuit 40 is triggered by distribution signal and generates high level signal corresponding with distribution push button signalling, and is exported
To distribution circuit 30, network connection configuration is carried out to trigger distribution circuit 30, it is straight so as to avoid distribution triggering key 20 from accessing
Galvanic electricity source VCC is directly output to distribution circuit 30, and the present embodiment can protect distribution circuit 30 and not be damaged.
Referring to FIG. 1 and FIG. 2, in one embodiment, the distribution signal triggering generation circuit 40 includes photoelectric coupling module
(not shown go out), the input terminal of the photoelectric coupling module is the input terminal that the distribution signal triggers generation circuit 40, described
The output end of photoelectric coupling module is connect with the distribution circuit 30.
In the present embodiment, distribution signal triggering generation circuit 40 can be realized using photoelectric coupling module namely optocoupler,
In some embodiments, distribution signal triggering generation circuit 40 can also be realized using signal coupling elements such as transformers, this
Embodiment is illustrated by taking optocoupler as an example, and when distribution triggering key 20 is not triggered, optocoupler is not turned on, and then exports low level
Distribution trigger signal to distribution circuit 30, distribution circuit 30 then continues to work normally.When distribution triggering key 20 is based on thimble
Triggering when being pressed, distribution triggering key 20 exports the high level signal of DC power supply VCC to the light emitting diode of optocoupler
Anode and optocoupler is connected, and then export high level distribution trigger signal to distribution circuit 30, to trigger distribution circuit 30
Carry out distribution.
Referring to FIG. 1 and FIG. 2, in one embodiment, the data converter further includes level holding circuit 50, the level
The input terminal of holding circuit 50 is connect with distribution triggering key 20, the level holding circuit 50, is matched for keeping described
Net triggering key 20 exports distribution push button signalling and stablizes output.
In the present embodiment, in order to avoid user using ejector pin contact be transported to net triggering key 20 when, it is possible that shake,
Or there are the factors such as unstable and causes to export unstable to the distribution push button signalling of microprocessor in DC power supply VCC, and damages
Bad distribution circuit 30, the present embodiment are additionally provided with level holding circuit 50, are pressed in distribution triggering key 20, and export high electricity
When flat key trigger signal, level holding circuit 50 carries out pressure limiting to the high level signal, and will be in key trigger signal
Noise signal filtered out, thus guarantee push button signalling stablize output.
Referring to FIG. 1 and FIG. 2, in one embodiment, the level holding circuit 50 includes first resistor R1 and first capacitor
The first end of C1, the first resistor R1 are the output end of the level holding circuit 50, the second end of the first capacitor C1
It is connect with one end of the first capacitor C1；The other end of the first capacitor C1 is grounded.
In the present embodiment, first resistor R1 is used to carry out the high level key trigger signal that distribution triggering key 20 exports
Pressure limiting, to avoid the voltage signal of output excessive and damage optocoupler and distribution circuit 30.First capacitor C1 is for touching key
Noise signal in signalling is filtered out, to guarantee that stablizing for push button signalling exports.
Referring to FIG. 1 and FIG. 2, in one embodiment, the distribution circuit 30 includes master controller, the inspection of the master controller
It surveys foot to connect with distribution signal triggering generation circuit 40, the master controller is used to receive the distribution triggering generation
When the distribution trigger circuit of circuit output, network connection configuration is carried out.
In the present embodiment, master controller can be realized using microprocessors such as single-chip microcontroller, DSP, and in microprocessor
In, it can integrate operating system and distribution program.Wherein, operating system is to manage and control data converter hardware and soft
The program of part resource supports the distribution program of data converter and the operation of other softwares and/or program, makes main controller
In the distribution push button signalling that the distribution triggering key 20 received exports, it is triggered and executes network connection configuration automatically.
Referring to FIG. 1 and FIG. 2, in one embodiment, the data converter further includes WiFi module 60, the master controller
By the WiFi module 60 and external control terminal communication connection, to receive the distribution information of external control terminal transmission.
In the present embodiment, controlling terminal can be mobile phone, tablet computer or server etc..Master controller can pass through WiFi
Module 60 receives the distribution information of mobile terminal output, such as distribution data packet, and completes network connection configuration according to distribution data packet.
Master controller can also receive WIFI signal by WiFi module 60, to be connected to network, and then receive and pass through operation by user
Control software in terminal, and the intelligent control signal sended over by network realize the Intelligent control to air conditioner.Example
Such as, it is connect by terminal with WIFI, the temperature of control adjustment air conditioner；It is opened alternatively, manipulating master controller by terminal remote
Air conditioner；Or monitor the operating of air conditioner in real time by terminal, and the fortune of air conditioner is collected according to the operating of air conditioner
Row parameter simultaneously passes through the output of WiFi module 60 to server or cloud etc..
Referring to FIG. 1 and FIG. 2, in one embodiment, master controller when receiving the distribution trigger signal for starting
Timing, and when timing time reaches the first preset time, carry out network connection configuration.
The logic circuit with the devices such as door, NOT gate composition can be built-in in the present embodiment, in master controller, or can be with
It is provided with timer, user can trigger key 20 by long-pressing distribution to export distribution push button signalling, and length temporally can root
It is configured, such as can be set to 3~10 seconds according to user's habit, the present embodiment is chosen as 5 seconds.Believe when detecting that distribution triggers
Number when, start timing until timing time namely key length temporally reach the first preset time, then master controller networks
Configuration.
In some embodiments, after the completion of network connection configuration, can also by the indicator light that is arranged on data converter,
Export the indication signal that distribution is completed.
Referring to FIG. 1 and FIG. 2, in one embodiment, the master controller be also used to timing time reach second it is default when
Between when, resetted.
User can also trigger key 20 by long-pressing distribution to export reset key, realize keypress function multiplexing, certainly
In other embodiments, a through-hole, and the corresponding reset key of configuration can also be set again on shell 10, to realize data
The reset function of converter realizes that carrying out factory to data converter restores setting.Wherein, length can temporally be practised according to user
It is used to be configured, such as can be set to 20 seconds.When detecting push button signalling, start timing up to timing time, namely press
Bond distance temporally reaches the first preset time, then master controller carries out reset setting.Master controller can pass through WiFi mould at this time
60 reception state reseting data packet of block enters according to state reset data packet and receives the reset state of distribution data packet again and match
Network data packet.
The utility model also proposes a kind of air-conditioner system, including outdoor unit 101, indoor unit 102 and number as described above
According to converter 103, the outdoor unit 101 is connect with the indoor unit 102, the converter and the outdoor unit 101 and/or institute
State the connection of indoor unit 102.The detailed construction of the data converter 103 can refer to above-described embodiment, and details are not described herein again；It can manage
Solution, due to having used above-mentioned data converter 103 in the utility model air-conditioner system, the utility model is empty
Adjust device system embodiment include above-mentioned 103 whole embodiments of data converter whole technical solutions, and technology achieved
Effect is also identical, and details are not described herein.
In the present embodiment, referring to Fig. 3, data converter 103 can be connect with outdoor unit 101, or referring to Fig. 4, data
Converter 103 can also be connect with indoor unit 102, or be connect simultaneously with outdoor unit 101 and indoor unit 102, the air conditioner
System, which connects mobile terminal or server, air-conditioner system information collected by data converter 103, can pass through number
After converting according to converter 103, it is uploaded to mobile terminal or server.When specific indoor unit 102 acquires information, indoor unit 102
Information collected can be transmitted to the outdoor unit 101, the outdoor unit 101 passes the information collected of indoor unit 102
It send to the data converter 103, and then after the data converter 103 converts information, is uploaded to the terminal.Or room
When interior machine 102 acquires information, information collected directly can be sent to the data converter 103 by indoor unit 102, in turn
After the data converter 103 converts information, mobile terminal and server are uploaded to reduce data transfer path.
The foregoing is merely the alternative embodiments of the utility model, and therefore it does not limit the scope of the patent of the utility model,
Under all utility models in the utility model are conceived, equivalent structure made based on the specification and figures of the utility model
Transformation, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (10)
1. a kind of data converter, which is characterized in that the data converter includes:
Shell is provided with the through-hole for thimble insertion；
Distribution triggers key, is set in the shell, and be correspondingly arranged with the through-hole, and the distribution triggering key is being based on
When the thimble triggers, distribution push button signalling is exported；
Distribution circuit is electrically connected, for networking when receiving the distribution push button signalling with distribution triggering key
Configuration.
2. data converter as described in claim 1, which is characterized in that the data converter further include:
Distribution signal triggers generation circuit, the input terminal and distribution triggering key electricity of the distribution signal triggering generation circuit
The output end of connection, the distribution signal triggering generation circuit is connect with the input terminal of the distribution circuit；The distribution signal
Generation circuit is triggered, the distribution electricity is triggered for when receiving the distribution push button signalling, exporting distribution trigger signal
Road carries out network connection configuration.
3. data converter as claimed in claim 2, which is characterized in that the distribution signal triggering generation circuit includes photoelectricity
Coupling module, the input terminal of the photoelectric coupling module are the input terminal that the distribution signal triggers generation circuit, the photoelectricity
The output end of coupling module and the distribution circuit connection.
4. data converter as claimed in claim 2, which is characterized in that the data converter further includes that level keeps electricity
Road, the input terminal of the level holding circuit and distribution triggering are by key connection, the level holding circuit, for keeping
The distribution push button signalling for stating distribution triggering key output stablizes output.
5. data converter as claimed in claim 4, which is characterized in that the level holding circuit includes first resistor and
One capacitor, the first end of the first resistor are the output end of the level holding circuit, the second end of the first capacitor with
One end of the first capacitor connects；The other end of the first capacitor is grounded.
6. data converter as claimed in claim 2, which is characterized in that the distribution circuit includes master controller, the master
The detection foot of controller is connect with distribution signal triggering generation circuit；The master controller, for receiving described match
When the distribution trigger signal of net triggering generation circuit output, network connection configuration is carried out.
7. data converter as claimed in claim 6, which is characterized in that the data converter further includes WiFi module, institute
It states WiFi module to connect with the master controller, the master controller is connected by the WiFi module and external control terminal communication
It connects, to receive the distribution information of external control terminal transmission.
8. data converter as claimed in claim 7, which is characterized in that the master controller is for receiving the distribution
Start timing when trigger signal, and when timing time reaches the first preset time, carries out network connection configuration.
9. data converter as claimed in claim 7, which is characterized in that the master controller is also used to reach in timing time
When the second preset time, resetted.
10. a kind of air-conditioner system, which is characterized in that including outdoor unit, indoor unit and such as claim 1 to 9 any one institute
The data converter stated, the outdoor unit are connect with the indoor unit, the converter and the outdoor unit and/or the interior
Machine connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920370178.3U CN209672542U (en) | 2019-03-21 | 2019-03-21 | Data converter and air-conditioner system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920370178.3U CN209672542U (en) | 2019-03-21 | 2019-03-21 | Data converter and air-conditioner system |
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| Publication Number | Publication Date |
|---|---|
| CN209672542U true CN209672542U (en) | 2019-11-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111555948A (en) * | 2020-04-30 | 2020-08-18 | 农芯(南京)智慧农业研究院有限公司 | Star communication system and method based on LoRa |
-
2019
- 2019-03-21 CN CN201920370178.3U patent/CN209672542U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111555948A (en) * | 2020-04-30 | 2020-08-18 | 农芯(南京)智慧农业研究院有限公司 | Star communication system and method based on LoRa |
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