CN209233833U - Wireless repeater - Google Patents
Wireless repeater Download PDFInfo
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- CN209233833U CN209233833U CN201820777601.7U CN201820777601U CN209233833U CN 209233833 U CN209233833 U CN 209233833U CN 201820777601 U CN201820777601 U CN 201820777601U CN 209233833 U CN209233833 U CN 209233833U
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Abstract
The utility model relates to a kind of wireless repeaters, and applied to the communication being located between the main website and terminal device located underground of ground in electric system, the wireless repeater includes: the first communication ends, are located on the ground, connect with the master station communication；Second communication ends, it is located underground, it is connect with the terminal equipment in communication；Wherein, connection is carried out wireless communication using the signal of communication of LoRa standard between first communication ends and second communication ends.The first communication ends for being located at ground and the second signal of communication located underground are wirelessly connected by using the signal of communication of LoRa standard, it is no longer necessary to which communication cable saves wiring cost.Also, the signal of communication of LoRa standard realizes the distant signal transmission between the first communication ends and the second communication ends；On the other hand, since the signal of communication of LoRa standard supports a variety of orthogonal spectrum expansion factors, the power system capacity of whole network can be significantly improved, while supporting frequency hopping antijam communication ability.
Description
Technical field
The utility model relates to the communications fields, more particularly to a kind of wireless repeater.
Background technique
With the continuous development of internet, development that Internet of Things Internet-based is also getting faster.In power train
In system, since the installing terminal equipments such as concentrator, distribution transformer monitoring and metering terminal and load management terminal are in basement；And it is another
Aspect, main website are but typically mounted on the ground, and farther out apart from terminal, this allow for the communication between main website and terminal device compared with
For difficulty.
In traditional technical solution, communication cable is drawn usually from main website and is connected to terminal device to solve to lead
The communication issue stood between terminal device, but this mode by landform, transmission range etc. constraint and exist installation not
Convenient problem, and it is also required to biggish wiring cost.
Utility model content
Based on this, it is necessary to a kind of wireless repeater is provided, to solve the communication issue between main website and terminal device.
A kind of wireless repeater, for realizing the main website and terminal device located underground for being located at ground in electric system it
Between communication, the wireless repeater includes:
First communication ends are located on the ground, connect with the master station communication；
Second communication ends, it is located underground, it is connect with the terminal equipment in communication；
Wherein, it is carried out between first communication ends and second communication ends using the signal of communication of LoRa standard wireless
Communication connection.
First communication ends include the first signal receiving/transmission device and second of communication connection in one of the embodiments,
Signal receiving/transmission device；Second communication ends include the third signal receiving/transmission device and fourth signal R-T unit of communication connection；
The main website and first signal receiving/transmission device communicate to connect；
The terminal device and the fourth signal R-T unit communicate to connect；
Wherein, the communication of LoRa standard is used between the second signal R-T unit and the third signal receiving/transmission device
Signal interacts formula wireless communication connection.
First communication ends further include the first format conversion apparatus in one of the embodiments, second communication
End further includes the second format conversion apparatus；First signal receiving/transmission device passes through first format conversion apparatus and described the
The communication connection of binary signal R-T unit, the third signal receiving/transmission device pass through second format conversion apparatus and the described 4th
Signal receiving/transmission device communication connection；
Wherein, first format conversion apparatus is used for first signal receiving/transmission device from the main website received the
The signal of communication of one standard is converted to the signal of communication of LoRa standard, and exports through the second signal R-T unit；
Second format conversion apparatus is used to be converted to the signal of communication of LoRa standard the signal of communication of the second standard,
And it is exported through the fourth signal R-T unit.
In one of the embodiments, second format conversion apparatus be also used to send on the terminal device second
The signal of communication of standard is converted to the signal of communication of LoRa standard, and exports through the third signal receiving/transmission device；
First format conversion apparatus is also used to be converted to the signal of communication of LoRa standard the communication letter of the first standard
Number, and exported through first signal receiving/transmission device.
First communication ends further include the first signal amplifying apparatus in one of the embodiments, and the main website passes through
First signal amplifying apparatus and first signal receiving/transmission device communicate to connect.
First communication ends further include the first signal filter in one of the embodiments, and the main website passes through
The first signal filter and first signal receiving/transmission device communicate to connect.
Second communication ends further include second signal amplifying device, the terminal device in one of the embodiments,
It is communicated to connect by the second signal amplifying device and the fourth signal R-T unit.
Second communication ends further include second signal filter, the terminal device in one of the embodiments,
It is communicated to connect by the second signal filter and the fourth signal R-T unit.
The terminal device includes the first power supply in one of the embodiments, and first power supply is used for described the
The power supply of two communication ends；The wireless repeater further include:
Independent power supply device is located on the ground, for powering to first communication ends.
The independent power supply device includes: main power source, backup power supply, power switching device in one of the embodiments,
And monitoring device；The main power source and the backup power supply are supplied by the power switching device to first communication ends respectively
Electricity；
Wherein, the monitoring device is connect with the main power source, the backup power supply and the power switching device respectively,
It is touched for acquiring the power supply parameter of the main power source and the power supply parameter of the backup power supply in real time, and according to the power supply parameter
Send out power switching device described and carry out the switching between the main power source power supply and backup power supply power supply.
Wireless repeater in above-described embodiment is led to by using the signal of communication of LoRa standard by be located at ground first
Letter end and the second signal of communication located underground are wirelessly connected, it is no longer necessary to which communication cable saves wiring cost.And
And the signal of communication of LoRa standard realizes the distant signal transmission between the first communication ends and the second communication ends；Another party
Face can significantly improve the power system capacity of whole network, together since the signal of communication of LoRa standard supports a variety of orthogonal spectrum expansion factors
When support frequency hopping antijam communication ability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of wireless repeater in one embodiment；
Fig. 2 is the structural schematic diagram of the first communication ends and the second communication ends in Fig. 1；
Fig. 3 is the structural schematic diagram of wireless repeater in another embodiment；
Fig. 4 is the wireless repeater in another embodiment；
Fig. 5 is the wireless repeater in another embodiment；
Fig. 6 is the wireless repeater in another embodiment；
Fig. 7 is the wireless repeater in another embodiment；
Fig. 8 is the wireless repeater in another embodiment；
Fig. 9 is the structural schematic diagram of independent power supply device in Fig. 8.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Fig. 1 is the structural schematic diagram of wireless repeater in one embodiment.As shown in Figure 1, the present embodiment provides a kind of nothings
Line repeater, the wireless repeater be applied to be located in electric system the main website 10 of ground and terminal device 13 located underground it
Between communication, the main website can be the server with signal transmission function, for acquiring electric power signal such as network load state；
The terminal device can be the Power signal processings equipment such as concentrator, distribution transformer monitoring and metering terminal and load management terminal.Into one
Step ground, the wireless repeater may include the first communication ends 11 and the second communication ends 12 located underground positioned at ground.Wherein,
First communication ends 11 can be communicated to connect with main website 10, and the second communication ends 12 can be communicated to connect with terminal device 13, also, the
Connection can be carried out wireless communication using the signal of communication of LoRa standard between one communication ends 11 and the second communication ends 12.
Specifically, main website 10 can carry out the transmitting of signal by devices such as signal transmitting antennas, and the standard of the signal can
Think at least one of standards such as GPRS, CDMA, 4G.Further, the first communication ends of ground are located on main website 10
11 can receive the signal of communication sent by main website 10, and the signal of communication is converted to LoRa (Long Range, abbreviation
LoRa) standard.Second communication ends 12 located underground can wirelessly receive the LoRa of the first communication ends 11 sending
The signal of communication of standard, and send the signal to terminal device 13.
In the above-described embodiments, by the first communication ends for being located at ground and it is located at by using the signal of communication of LoRa standard
Second communication ends of underground are wirelessly connected, it is no longer necessary to communication cable.Between opposite first communication ends and the second communication ends
For the conventional solution being attached using wired mode, wiring cost is saved, is also solved in wired connection mode
By the problem that the installation of influence of topography bring is inconvenient.Also, traditional carrier repeater is due to needing by power line transmission
Signal, so the problems such as there are harmonic wave interferences, and the first communication ends in above-described embodiment and the second communication ends are using LoRa
The appearance for the problems such as signal of communication of standard carries out wireless communication connection, substantially reduces harmonic wave interference.Moreover, relative to
For the wireless communication techniques such as Zigbee, bluetooth, the signal of communication of LoRa standard can carry bigger data volume, also possess more
Long transmission range.
Then there is traditional 2G/4G wireless communication technique the network coverage to have the defects of blind spot and high power consumption, and LoRa system
The signal of communication of formula can obtain faint useful signal in ambient noise, this allow for the first communication ends and the second communication ends it
Between the high 150dB of whole link budget, even if using+20dBm output in the case where, it is also possible to obtain the face-to-face communication of 8-15km
Distance realizes the distant signal transmission between the first communication ends and the second communication ends；On the other hand, due to LoRa standard
Signal of communication supports a variety of orthogonal spectrum expansion factors, can significantly improve the power system capacity of whole network, while supporting that frequency hopping is anti-interference
Communication capacity；Also, had using the first communication ends that the signal of communication of LoRa standard is communicatively coupled with the second communication ends
Feature low in energy consumption, is either in signal receiving modes or emission mode, and power consumption is generally lower than 200mA.
Fig. 2 is the structural schematic diagram of the first communication ends and the second communication ends in Fig. 1.As shown in Fig. 2, in some embodiments
In, the first communication ends 11 may further include the first signal receiving/transmission device 111, the first format conversion apparatus 112 and the second letter
Number R-T unit 113；Second communication ends may further include third signal receiving/transmission device 121, the second format conversion apparatus 122
With fourth signal R-T unit 123.Wherein, main website 10 and the first signal receiving/transmission device 111 communicate to connect；First signal transmitting and receiving dress
Setting the 111, first format conversion apparatus 112 and second signal R-T unit 113 sequentially can successively communicate to connect；Third signal is received
Transmitting apparatus 121, the second format conversion apparatus 122 and fourth signal R-T unit 123 sequentially can be communicated to connect successively；4th letter
Number R-T unit 123 and terminal device 13 communicate to connect.
Specifically, main website 10 can will the communication signal transmissions with the first standard to the first signal receiving/transmission device 111, the
One signal receiving/transmission device 111 can transmit the signal to the first format after receiving the signal of communication with the first standard
The signal of communication is converted to LoRa standard by the first format conversion apparatus 112, and received via second signal by conversion equipment 112
Transmitting apparatus 113 is wirelessly transmitted to third signal receiving/transmission device 121.Further, the second format conversion apparatus 122 can be via
Three signal receiving/transmission devices 121 receive the signal of communication of the LoRa standard, and the signal of communication of the LoRa standard is converted to terminal
The identifiable signal of equipment 13 (namely signal of communication of the second standard).Further, terminal device 13 can be via the 4th letter
Number R-T unit 123 receives the signal of communication after conversion.
On the other hand, terminal device 13 can also upload data to main website 10.At this point, the second format conversion apparatus 122 can
To receive the signal of communication with the second standard sent from terminal device 13 via fourth signal R-T unit 123.And by
This there is the signal of communication of the second standard to be converted to LoRa standard by the second format conversion apparatus 122.Further, LoRa standard
Signal of communication can be wirelessly transmitted to second signal R-T unit 113 via third signal receiving/transmission device 121.Then, with
Based on the first format conversion apparatus 112 that binary signal R-T unit 113 is connected can convert the signal of communication of LoRa standard
It stands 10 signal formats (namely signal of communication of the first standard) that can be identified, and is sent via the first signal receiving/transmission device 111
To main website 10.
Wireless repeater in based on the above embodiment, Fig. 3 are the structural representation of wireless repeater in another embodiment
Figure.As shown in figure 3, in some embodiments, the first signal receiving/transmission device 111 may further include the first signal transmitting and receiving unit
1111 and second signal Transmit-Receive Unit 1112；Second signal R-T unit 113 may further include third signal transmitting and receiving unit
1131 and fourth signal Transmit-Receive Unit 1132；Third signal receiving/transmission device 121 may further include the 5th signal transmitting and receiving unit
1211 and the 6th signal transmitting and receiving unit 1212；Fourth signal R-T unit 123 may further include the 7th signal transmitting and receiving unit
1231 and the 8th signal transmitting and receiving unit 1232.
Wherein, main website 10 can be communicated to connect with the first signal transmitting and receiving unit 1111；First signal transmitting and receiving unit 1111,
One format conversion apparatus 112, third signal transmitting and receiving unit 1131, the 5th signal transmitting and receiving unit 1211, the second format conversion apparatus
122 and the 7th signal transmitting and receiving unit 1231 can sequence successively communicate to connect；7th signal transmitting and receiving unit 1231 can be with terminal
Equipment 13 communicates to connect.On the other hand, terminal device 13 can be communicated to connect with the 8th signal transmitting and receiving unit 1232, the 8th signal
Transmit-Receive Unit 1232, the 6th signal transmitting and receiving unit 1212, fourth signal Transmit-Receive Unit 1132, second signal Transmit-Receive Unit 1112 can
It is communicated to connect with successively sequence；Second signal Transmit-Receive Unit 1112 can be communicated to connect with main website 10.
Specifically, when main website 10 transmits data to terminal device 13, main website 10 can be by the communication with the first standard
Signal is transmitted to the first format conversion apparatus 112 via the first signal transmitting and receiving unit 1111.First format conversion apparatus 112 can be with
The signal of communication of first standard is converted into LoRa standard, and wireless via the third signal transmitting and receiving unit 1131 for being located at ground
It is transmitted to the 5th signal transmitting and receiving unit 1211 located underground.Further, the second format conversion apparatus 122 can receive the 5th
Signal transmitting and receiving unit 1211 send LoRa standard signal of communication simultaneously convert the signal into the second standard, and further via
7th signal transmitting and receiving unit 1231 is transmitted to terminal device 13.
On the other hand, terminal device 13 can also upload data to main website 10.At this point, having the from terminal device 13
The signal of communication of two standards can be transmitted to the second format conversion apparatus 122 via the 8th signal transmitting and receiving unit 1232, and by
The signal of communication of second standard is converted to LoRa standard by two format conversion apparatus 122.6th signal transmitting and receiving located underground
The signal of communication of the LoRa standard can be wirelessly transmitted to the fourth signal Transmit-Receive Unit 1132 positioned at ground by unit 1212.Into
One step, the first format conversion apparatus 112 can receive the communication letter of the LoRa standard from fourth signal Transmit-Receive Unit 1132
Number, and convert the signal into the signal of communication for other standards (namely first standard) that main website can identify.Further,
Signal of communication after conversion can be sent to main website 10 by binary signal Transmit-Receive Unit 1112.
Wireless repeater in based on the above embodiment, the present embodiment provides another wireless repeater, Fig. 4 is another reality
The wireless repeater in example is applied, which can also include the first signal amplifying apparatus 40；Main website 10 can pass through
One signal amplifying apparatus 40 is connect with the first communication ends 11.The present embodiment is set to 10 He of main website with the first signal amplifying apparatus 40
Between signal receiving/transmission device 111, and it is described in detail respectively with main website 10 and the communication connection of the first signal receiving/transmission device 111.
Specifically, the signal of communication that main website 10 is sent can carry out at signal amplification in the first signal amplifying apparatus 40
Reason, so that the signal has stronger anti-interference ability and remote transmittability, so that apart from main website 10 farther away the
One signal receiving/transmission device 111 can more easily receive the signal of communication from main website 10.
Wireless repeater in based on the above embodiment, the present embodiment provides another wireless repeater, Fig. 5 is another reality
The wireless repeater in example is applied, which can also include the first signal filter 50, and main website 10 can be by the
One signal filter 50 is connect with the first communication ends 11.The present embodiment is arranged with the first signal filter 50 in 10 He of main website
Between first signal receiving/transmission device 111, and carried out specifically with main website 10 and the communication connection of the first signal receiving/transmission device 111 respectively
It is bright.
Specifically, the signal of communication that main website 10 is sent can be carried out first at signal filtering via the first signal filter 50
It is transmitted to the first signal receiving/transmission device 111 again after reason, so that signal of communication is not easily susceptible to spatial electromagnetic in transmission process and does
It disturbs.
It will be understood by those skilled in the art that in some embodiments, wireless repeater can also include the first letter simultaneously
Number amplifying device 40 and the first signal filter 50, and main website 10 can pass sequentially through the first signal filter 50 and first
Signal amplifying apparatus 40 is connect with the first R-T unit 111, so that the first signal filter 50 can be first to signal of communication
It is filtered, then signal is amplified by the first signal amplifying apparatus 40.
Wireless repeater in based on the above embodiment, the present embodiment provides another wireless repeater, Fig. 6 is another reality
The wireless repeater in example is applied, which can also include second signal amplifying device 60, and terminal device 13 can lead to
Second signal amplifying device 60 is crossed to connect with the second communication ends 12.The present embodiment is arranged with second signal amplifying device 60 in terminal
Between equipment 13 and fourth signal R-T unit 113, and respectively with 113 communication link of terminal device 13 and fourth signal R-T unit
It connects and is described in detail.
Specifically, the signal of communication that terminal device 13 is sent can carry out signal amplification in second signal amplifying device 60
It after processing, retransmits to main website 10, so that the communication between main website 10 and terminal device 13 is more stable.
Fig. 7 is the wireless repeater in another embodiment, as shown in fig. 7, in other embodiments, wireless repeater may be used also
To include second signal filter 70, terminal device 13 can pass through second signal filter 70 and the second communication ends 12 connect
It connects.The present embodiment is arranged between terminal device 13 and fourth signal R-T unit 113 with second signal filter 70, and point
It is not described in detail with terminal device 13 and the communication connection of fourth signal R-T unit 113.
Specifically, the signal of communication that terminal device 13 is sent first can carry out signal filter via second signal filter 70
It is transmitted to main website 10 again after wave processing, it is possible thereby to eliminate the interference of terminal device bring spatial electromagnetic.
It will be understood by those skilled in the art that in some embodiments, wireless repeater can also include the second letter simultaneously
Number amplifying device 60 and second signal filter 70, and terminal device 13 can pass sequentially through 70 He of second signal filter
Second signal amplifying device 60 is connect with fourth signal R-T unit 113, so that second signal filter 70 can be first right
Signal of communication is filtered, then is amplified by second signal amplifying device 60 to signal.
Wireless repeater in based on the above embodiment, the present embodiment provides another wireless repeater, Fig. 8 is another reality
The wireless repeater in example is applied, which can also include the first power supply (not shown) and independent power supply device
80, wherein first power supply can be built in terminal device 13, and be powered to terminal device 13 and the second communication ends 12.
Independent power supply device 80 can be set on the ground, for powering to the first communication ends 11.
Fig. 9 is the structural schematic diagram of independent power supply device in Fig. 8.As shown in figure 9, in some embodiments, it is independently-powered
Device 80 may include power switching device 801, main power source 802, backup power supply 803 and monitoring device 804.Wherein, main power source
802 can be connect by power switching device 801 with the first communication ends 11, and backup power supply 803 can pass through power switching device
801 connect with the first communication ends 11.
Specifically, the electric signal of the output of main power source 802 can be monitored in real time (such as output electric current, voltage in monitoring device 804
Deng) size.The electric signal threshold value of the corresponding electric signal can be preset in monitoring device 801, and exported in main power source 802
When electric signal size exceeds the threshold value, judge that main power source 802 is in malfunction.Further, monitoring device 801 can trigger
Link between main power source 802 and the first communication ends 11 is disconnected and (namely stops using main power source 802 by power switching circuit 804
Power to the first communication ends 11), and further triggering power switching circuit 804 controls backup power supply 803 and the first communication ends 11
Electrical connection, so that backup power supply 803 is powered to the first communication ends 11.In other embodiments, monitoring device 801 can also wrap
Alarm device (not shown) is included, can star alarm device when main power source 802 breaks down to remind user.Alert methods can
To be by warning light, alarm bell or remotely to send in a manner of warning message etc. to user, the present embodiment is without limitation.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (9)
1. a kind of wireless repeater, for realizing being located between the main website and terminal device located underground of ground in electric system
Communication, which is characterized in that the wireless repeater includes:
First communication ends are located on the ground, connect with the master station communication；
Second communication ends, it is located underground, it is connect with the terminal equipment in communication；
Independent power supply device is located on the ground, for powering to first communication ends；
Wherein, it is carried out wireless communication between first communication ends and second communication ends using the signal of communication of LoRa standard
Connection；
The independent power supply device includes: main power source, backup power supply, power switching device and monitoring device；The main power source and
The backup power supply is powered by the power switching device to first communication ends respectively；
The monitoring device is connect with the main power source, the backup power supply and the power switching device respectively, for real-time
The power supply parameter of the main power source and the power supply parameter of the backup power supply are acquired, and the confession is triggered according to the power supply parameter
Electrical switching apparatus carries out the switching between the main power source power supply and backup power supply power supply；And
The monitoring device includes alarm, for reminding user when the main power source breaks down.
2. wireless repeater according to claim 1, which is characterized in that first communication ends include the of communication connection
One signal receiving/transmission device and second signal R-T unit；Second communication ends include the third signal receiving/transmission device of communication connection
With fourth signal R-T unit；
The main website and first signal receiving/transmission device communicate to connect；
The terminal device and the fourth signal R-T unit communicate to connect；
Wherein, the signal of communication of LoRa standard is used between the second signal R-T unit and the third signal receiving/transmission device
Interact formula wireless communication connection.
3. wireless repeater according to claim 2, which is characterized in that first communication ends further include that the first format turns
Changing device, second communication ends further include the second format conversion apparatus；First signal receiving/transmission device passes through described first
Format conversion apparatus and the second signal R-T unit communicate to connect, and the third signal receiving/transmission device passes through second lattice
Formula conversion equipment and the fourth signal R-T unit communicate to connect；
Wherein, first format conversion apparatus is used to make first signal receiving/transmission device from the main website received first
The signal of communication of formula is converted to the signal of communication of LoRa standard, and exports through the second signal R-T unit；
Second format conversion apparatus is used to be converted to the signal of communication of LoRa standard the signal of communication of the second standard, and passes through
The fourth signal R-T unit output.
4. wireless repeater according to claim 3, which is characterized in that second format conversion apparatus is also used to institute
The signal of communication for stating the second standard of terminal device transmission is converted to the signal of communication of LoRa standard, and receives through the third signal
Transmitting apparatus output；
First format conversion apparatus is also used to be converted to the signal of communication of LoRa standard the signal of communication of the first standard, and
It is exported through first signal receiving/transmission device.
5. wireless repeater according to claim 3, which is characterized in that the wireless repeater further includes that the first signal is put
Big device, the main website are communicated to connect by first signal amplifying apparatus and first communication ends.
6. wireless repeater according to claim 3, which is characterized in that the wireless repeater further includes the filter of the first signal
Wave apparatus, the main website are communicated to connect by the first signal filter and first communication ends.
7. wireless repeater according to claim 2, which is characterized in that the wireless repeater further includes that second signal is put
Big device, the terminal device are communicated to connect by the second signal amplifying device and second communication ends.
8. wireless repeater according to claim 2, which is characterized in that the wireless repeater further includes second signal filter
Wave apparatus, the terminal device are communicated to connect by the second signal filter and second communication ends.
9. wireless repeater according to any one of claims 1 to 8, which is characterized in that the terminal device includes first
Power supply, first power supply are used to power to second communication ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820777601.7U CN209233833U (en) | 2018-05-23 | 2018-05-23 | Wireless repeater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820777601.7U CN209233833U (en) | 2018-05-23 | 2018-05-23 | Wireless repeater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209233833U true CN209233833U (en) | 2019-08-09 |
Family
ID=67496441
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820777601.7U Active CN209233833U (en) | 2018-05-23 | 2018-05-23 | Wireless repeater |
Country Status (1)
| Country | Link |
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| CN (1) | CN209233833U (en) |
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2018
- 2018-05-23 CN CN201820777601.7U patent/CN209233833U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200915 Address after: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee after: Guangzhou Power Supply Bureau of Guangdong Power Grid Co.,Ltd. Address before: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee before: GUANGZHOU POWER SUPPLY Co.,Ltd. |
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| TR01 | Transfer of patent right |