CN207965030U - A kind of low-power consumption fault-indicating system - Google Patents
A kind of low-power consumption fault-indicating system Download PDFInfo
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- CN207965030U CN207965030U CN201820523261.5U CN201820523261U CN207965030U CN 207965030 U CN207965030 U CN 207965030U CN 201820523261 U CN201820523261 U CN 201820523261U CN 207965030 U CN207965030 U CN 207965030U
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Abstract
The utility model embodiment provides a kind of low-power consumption fault-indicating system, monitoring terminal including master controller and with master controller communication connection, master controller includes the first communication module, low power processor and power module, and monitoring terminal includes the second communication module and sampling module；First communication module is used to establish with monitoring terminal or base station and communicate to connect, and can receive the message that monitoring terminal is sent；Low power processor includes clock unit and detection unit, and master controller can wake up under the control of clock unit, detection unit or the first communication module from suspend mode；Sampling module can acquire current signal and voltage signal on distribution line, and it is sent to master controller in the form of message by the second communication module.Low-power consumption fault-indicating system provided in this embodiment can ensure that the CPU long periods of master controller are in low-power consumption mode by the way that low power processor and the first communication module is arranged, and reach the service life that low-power consumption purpose improves equipment.
Description
Technical field
The utility model is related to electric system detection technique fields, in particular to a kind of low-power consumption indicating fault system
System.
Background technology
With the continuous development of Distribution Automation Construction, fault detector is due to it can quickly determine Location
It is widely used.Therefore in order to maximally utilize the advantage of fault detector, extending its service life becomes primary study problem.
Power supply is the basis of fault detector operation, is limited for its service life of the fault detector of battery powered type.In view of lithium electricity
The slow developing steps of pool technology, the task of top priority are to realize best battery by limiting power consumption, then low-power consumption
The key of design is become.
Utility model content
In view of this, the purpose of the utility model embodiment is, a kind of low-power consumption fault-indicating system is provided to solve
The above problem.
The utility model preferred embodiment provides a kind of low-power consumption fault-indicating system, including master controller and with it is described
The monitoring terminal of master controller communication connection, the monitoring terminal are installed on to monitor distribution line failure on distribution network line,
The master controller includes the first communication module, low power processor and power module, and the monitoring terminal includes second logical
Interrogate module and sampling module；
First communication module is used to establish communication connection with the monitoring terminal or establish with base station and communicate to connect, and
And first communication module is used to receive the message that the monitoring terminal is sent；
The low power processor includes clock unit and detection unit, and the detection unit is for acquiring the power supply
The voltage value signal of module, according to the voltage value signal to wake up the CPU of the master controller from suspend mode, when described
Clock unit is by the communication cycle of setting to wake up the CPU of the master controller from suspend mode；
First communication module is additionally operable to when receiving the message that the monitoring terminal is sent, by triggering pin electricity
It is flat to change to wake up the CPU of the master controller from suspend mode；
The sampling module is used to acquire the current signal and voltage signal on distribution line, and is communicated by described second
The current signal and voltage signal are sent to the master controller by module in the form of message.
Further, in low-power consumption fault-indicating system provided in this embodiment, the monitoring terminal further includes lift pressure
Circuit, the booster voltage circuit are connected to the output end of the sampling module, and the AC signal that the sampling module is exported turns
It is changed to direct current signal, and negative signal is converted into positive signal.
Further, in low-power consumption fault-indicating system provided in this embodiment, the booster voltage circuit includes current source
And transistor, the input terminal of the current source is connected with input voltage, output end is connected with the source electrode of the transistor, the crystalline substance
The grid of body pipe is connect as the input terminal of the booster voltage circuit with the output end of the sampling module, the source electrode of the transistor
As the output end of the booster voltage circuit, the grounded drain of the transistor.
Further, in low-power consumption fault-indicating system provided in this embodiment, the monitoring terminal includes microprocessor
Device, the microprocessor are connected to the output end of the booster voltage circuit, the model MSP430 of the microprocessor.
Further, in low-power consumption fault-indicating system provided in this embodiment, the sampling module includes taking electric mould
Block and electromagnetism ring, described take is taken to be arranged with electricity taking coil in electromagnetism ring, the electricity-fetching module is connect with the electricity taking coil, described
Electricity-fetching module includes voltage stabilizing output interface.
Further, in low-power consumption fault-indicating system provided in this embodiment, the electricity taking coil uses alloy material
Matter is made.
Further, in low-power consumption fault-indicating system provided in this embodiment, the monitoring terminal further includes rectification
Filter circuit, the current rectifying and wave filtering circuit are connected to the voltage stabilizing output interface of the electricity-fetching module, with defeated to the electricity-fetching module
The voltage signal gone out is handled.
Further, in low-power consumption fault-indicating system provided in this embodiment, the microprocessor is connected with spare
Battery, the reserve battery are lithium battery.
Further, in low-power consumption fault-indicating system provided in this embodiment, first communication module includes
CC1120 modules and GPRS module, the GPRS module have sleep pattern, the CC1120 modules have continue reception pattern,
Sniff pattern and awakening mode.
Further, in low-power consumption fault-indicating system provided in this embodiment, second communication module includes penetrating
Frequency chip, dual-mode antenna and crystal oscillating circuit, the dual-mode antenna are connected with the radio frequency chip, and the crystal oscillating circuit is penetrated with described
Frequency chip is connected.
The low-power consumption fault-indicating system that the utility model embodiment provides, including master controller and monitoring terminal, master control
Device processed includes the first communication module, low power processor and power module, and monitoring terminal includes the second communication module and adopts
Egf block.Wherein, the communication connection of terminal or base station can be realized and be monitored to the first communication module, and can receive monitoring terminal and send
Message.Low power processor includes detection unit and clock unit, and the voltage value signal of power module can be used in detection unit,
According to voltage value signal to wake up the CPU of master controller from suspend mode, clock unit can will be total by the communication cycle of setting
The CPU of controller wakes up from suspend mode.First communication module, can be by master control when receiving the message that monitoring terminal is sent
The CPU of device wakes up from suspend mode.The sampling module of monitoring terminal can acquire current signal and voltage signal on distribution line,
And it is sent to by master controller in the form of message by the second communication module.Low-power consumption indicating fault provided in this embodiment
System can ensure that the CPU long periods of master controller are in low-power consumption mould by the way that low power processor and the first communication module is arranged
Formula reaches the service life that low-power consumption purpose improves equipment.
Description of the drawings
It, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described.It should be appreciated that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structure diagram for the low-power consumption fault-indicating system that the utility model embodiment provides.
Fig. 2 is the structure diagram for the monitoring terminal that the utility model embodiment provides.
Fig. 3 is another structure diagram for the monitoring terminal that the utility model embodiment provides.
Fig. 4 is the structure diagram for the second communication module that the utility model embodiment provides.
Icon：10- low-power consumption fault-indicating systems；100- master controllers；The first communication modules of 110-；120- power supply moulds
Block；130- low power processors；131- detection units；132- clock units；200- monitors terminal；The second communication modules of 210-；
211- radio frequency chips；212- dual-mode antennas；213- crystal oscillating circuits；220- sampling modules；221- electricity-fetching modules；222- takes electromagnetism
Ring；230- microprocessors；240- current rectifying and wave filtering circuits；250- booster voltage circuits；260- reserve batteries.
Specific implementation mode
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.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.The component of the utility model embodiment being usually described and illustrated herein in the accompanying drawings can be with a variety of different configurations
To arrange and design.Therefore, the detailed description of the embodiments of the present invention to providing in the accompanying drawings is not intended to limit below
The claimed the scope of the utility model of system, but it is merely representative of the selected embodiment of the utility model.It is new based on this practicality
The embodiment of type, the every other embodiment that those skilled in the art are obtained without making creative work,
It shall fall within the protection scope of the present invention.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
Referring to Fig. 1, the schematic structure frame of the low-power consumption fault-indicating system 10 provided for the utility model embodiment
Figure.The low-power consumption fault-indicating system 10 includes master controller 100 and the monitoring with the communication connection of the master controller 100
Terminal 200.The monitoring terminal 200 is installed on distribution network line to monitor distribution line failure.The master controller 100 wraps
The first communication module 110, low power processor 130 and power module 120 are included, the monitoring terminal 200 includes the second communication
Module 210 and sampling module 220.
First communication module 110 is used to establish communication connection with the monitoring terminal 200 or be established with external base station
Communication connection, and first communication module 110 is used to receive the message that the monitoring terminal 200 is sent.
The low power processor 130 includes clock unit 132 and detection unit 131, and the detection unit 131 is for adopting
The voltage value signal for collecting the power module 120, according to the voltage value signal with by the CPU of the master controller 100 from stop
Sleep mode wakes up.Wherein, the detection unit 131 includes current detecting unit and voltage detection unit etc., and concrete model is not made
Limitation.The clock unit 132 is by the communication cycle of setting to wake up the CPU of the master controller 100 from suspend mode.Institute
The first communication module 110 is stated to be additionally operable to receive the message that the monitoring terminal 200 is sent in first communication module 110
When, changed to wake up the CPU of the master controller 100 from suspend mode by triggering pin level.
The sampling module 220 is used to acquire the current signal and voltage signal on distribution line, and passes through described second
The current signal and voltage signal are sent to the master controller 100 by communication module 210 in the form of message.
In the present embodiment, the master controller 100 uses the MCU (Microcontroller of Kinetis series
Unit, micro-control unit), including K60 chips.The MCU of traditional ARM cores generally only has tri- kinds of work(of Run, Wait, Stop
Consumption pattern.And the power consumption mode of the MCU of Kinetis series is at most as many as 11 kinds reachable, such as Run, VLPS, VLPW etc..It can
Meet configuration requirement of the client to the various low-power consumption of MCU, while supporting a variety of wake-up modes, client is facilitated to use.
In the present embodiment, master controller 100 can be chronically at suspend mode mould before by wireless telecommunications wake-up or timing wake-up
Retain while formula, such as VLPS (super low-power consumption stop mode), the pattern can utmostly reduce power consumption external wake with
Internal clocking arousal function.
Optionally, first communication module 110 includes CC1120 modules and GPRS module, and the GPRS module, which has, sleeps
Sleep mode, the CC1120 modules, which have, continues reception pattern, sniff pattern and awakening mode.CC1120 modules or GPRS moulds
Block is changed by pin level after receiving message to wake up the CPU of master controller 100.
The sleep pattern acquiescence of GPRS module is in off state, can be by the way that GPRS is arranged when being set as AT+QSCLK=1
The DTR pins of module are to allow module to enter sleep pattern or exit sleep pattern.Wherein, when DTR pins set height, and without in
Stopping pregnancy life is (for example, GPIO (General Purpose Input Output, universal input, output) is interrupted or data transfer
It is happened at serial ports), GPRS module can be automatically into sleep pattern.Under sleep pattern, GPRS module still can receive short message
And GPRS downlink datas, but serial ports is inaccessible.And when being set as AT+QSCLK=0, GPRS module then exits completely
Sleep pattern, no matter whether DTR pins are effective at this time, and GPRS module all will not Dietary behavior.
Optionally, in the specific implementation, the DTR pins of GPRS module can be dragged down after powering, when initializing GPRS module,
The instruction of " AT+QSCLK=1 " is sent to GPRS module.When GPRS module connection be successfully established after, draw high DTR pins so that
GPRS module enters suspend mode.If receiving message, GPRS module can be automatically waken up to receive data, and pass through pull
Foot carries out message transmission and processing with the CPU for waking up master controller 100.If having message pending on master controller 100, drag down
DTR pins carry out message transmission to wake up GPRS module.DTR pins are drawn high after being sent makes GPRS module continue suspend mode
State.For GPRS module after carrying out suspend mode, consumption stream can be reduced to 3mA hereinafter, can reach the purpose for saving power consumption by 30mA.
CC1120 modules module when under lasting reception pattern works always, and configuration is simple but power consumption is larger.And
When under sniff pattern, module gap sex work does not receive data during stopping, and receiving during operation can after data
Obtain the lead code in message, if lead code correctly if carry out the reception of whole frame message.And when in the wake mode, it can be than smelling
Stop the longer time under spy pattern, but needs last longer with wake-up module when sending message.It, can in specific embodiment
Accordingly it is arranged according to actual demand.
In the present embodiment, monitoring terminal 200 will generally need to send every time when active is communicated with master controller 100
Several seconds wake-up messages will increase the power consumption of monitoring terminal 200 in this way, and can influence communication efficiency.There are multiple monitorings eventually
It can also be interfered with each other in the case of end 200, influence the reception of normal message.Therefore, in the present embodiment, master controller 100
CC1120 modules have selected sniff pattern, have both achieved the purpose that reduce power consumption in this way, have nor affected on communication efficiency and quality.Into
After entering sniff pattern, CC1120 module dissipations can be reduced to 1~2mA by 20mA.
In the present embodiment, the clock unit 132 includes the programmable timer for having EEPROM, can preset communication
Period, programmable timer then wake up the CPU of master controller 100 from suspend mode when detecting that communication cycle arrives.
In the present embodiment, 100 one end of master controller is improved, the circuit larger to power consumptions such as GPRS modules carries out
It improves to achieve the purpose that low consumption.Master controller 100 in the present embodiment is by the first communication module 110 or low power processor
It can be in suspend mode over a long time before 130 wake-ups, further achieve the purpose that low-power consumption.And the master control in the present embodiment
It is aerial that device 100 does not include Ethernet PHY chip in the prior art, external RAM, outside FLASH, encryption chip, 485 chips etc.
The unwanted function element of line style host and circuit, Overall Power Consumption can about reduce 20mA.
Referring to Fig. 2, in the present embodiment, the monitoring terminal 200 is mounted on distribution network line to monitor distribution wire
Road failure.It includes microprocessor 230, the second communication module 210 and sampling module 220 to monitor terminal 200.Wherein, described to adopt
Egf block 220 includes electricity-fetching module 221 and takes electromagnetism ring 222, and described take is arranged with electricity taking coil in electromagnetism ring 222, described to take
Electric module 221 is connect with the electricity taking coil, and the electricity-fetching module 221 includes voltage stabilizing output interface.Wherein, the electricity taking coil
It is made, can be saved energy of alloy material.The sampling module 220 can acquire current signal and voltage letter on distribution line
Number, and it is sent to microprocessor 230.Microprocessor 230 is sent to master controller 100 by the second communication module 210.
In addition, please referring to Fig. 3, the monitoring terminal 200 further includes current rectifying and wave filtering circuit 240, the rectifying and wave-filtering
Circuit 240 is connected to the voltage stabilizing output interface of the electricity-fetching module 221, with the voltage signal exported to the electricity-fetching module 221
It is handled.
Wherein, the model MSP430, MSP430 of the microprocessor 230 have the advantages that low-power consumption, dynamic power consumption one
As can reach 80-100uA/MHz.Since MSP430 can only handle positive voltage signal, negative voltage signal may cause to damage to equipment
Evil.And the output of sampling module 220 is AC signal, therefore, in the present embodiment, the monitoring terminal 200 further includes lift piezoelectricity
Road 250, the booster voltage circuit 250 are connected to the output end of the sampling module 220, the sampling module 220 are exported
AC signal is converted to direct current signal, and negative signal is converted to positive signal, by transformed current transmission to the microprocessor
Device 230.
In the present embodiment, the booster voltage circuit 250 includes current source and transistor, the input terminal of the current source and input
Voltage is connected, output end is connected with the source electrode of the transistor, and the grid of the transistor is as the defeated of the booster voltage circuit 250
Enter end to connect with the output end of the sampling module 220, the output of the source electrode of the transistor as the booster voltage circuit 250
End, the grounded drain of the transistor.In the present embodiment, the microprocessor 230 is also associated with reserve battery 260, described standby
It is lithium battery with battery 260.
The current signal received is sent in the form of message by the second communication module 210 by the microprocessor 230
The master controller 100.Wherein, referring to Fig. 4, second communication module 210 includes radio frequency chip 211, dual-mode antenna 212
And crystal oscillating circuit 213, the dual-mode antenna 212 are connected with the radio frequency chip 211, the crystal oscillating circuit 213 and the radio frequency
Chip 211 is connected.Since transmission interval is longer, power consumption can be ignored radio-frequency transmissions substantially.
In conclusion the utility model embodiment provide low-power consumption fault-indicating system 10, including master controller 100 and
Terminal 200 is monitored, master controller 100 includes the first communication module 110, low power processor 130 and power module 120, prison
It includes the second communication module 210 and sampling module 220 to survey terminal 200.Wherein, the first communication module 110 can be realized and be monitored
The communication connection of terminal 200 or base station, and can receive the message that monitoring terminal 200 is sent.Low power processor 130 includes detection
Unit 131 and clock unit 132, the voltage value signal of power module 120 can be used in detection unit 131, according to voltage value signal
To wake up the CPU of master controller 100 from suspend mode, clock unit 132 can be by the communication cycle of setting by master controller 100
CPU from suspend mode wake up.First communication module 110, can be by master control when receiving the message that monitoring terminal 200 is sent
The CPU of device 100 wakes up from suspend mode.The sampling module 220 of monitoring terminal 200 can acquire current signal on distribution line and
Voltage signal, and it is sent to by the second communication module 210 by master controller 100 in the form of message.The present embodiment provides
Low-power consumption fault-indicating system 10 can ensure master controller by the way that low power processor 130 and the first communication module 110 is arranged
100 CPU is in low-power consumption mode for a long time, reaches the service life that low-power consumption purpose improves equipment.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected.It can
Can also be electrical connection to be mechanical connection.It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in utility model.
In the description of the present invention, it should be noted that the orientation or positional relationship of the instructions such as term "upper", "lower"
For be based on the orientation or positional relationship shown in the drawings or the utility model product using when the orientation or position usually put
Relationship is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply the indicated device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.This
Outside, term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of low-power consumption fault-indicating system, which is characterized in that including master controller and with the master controller communication link
The monitoring terminal connect, the monitoring terminal are installed on distribution network line to monitor distribution line failure, the master controller packet
The first communication module, low power processor and power module are included, the monitoring terminal includes the second communication module and sampling
Module；
First communication module is used to establish communication connection with the monitoring terminal or establish with base station and communicate to connect, and institute
State the message that the first communication module is sent for receiving the monitoring terminal；
The low power processor includes clock unit and detection unit, and the detection unit is for acquiring the power module
Voltage value signal, according to the voltage value signal with by the CPU of the master controller from suspend mode wake up, the clock list
Member is by the communication cycle of setting to wake up the CPU of the master controller from suspend mode；
First communication module is additionally operable to, when receiving the message that the monitoring terminal is sent, by triggering pin level change
Become to wake up the CPU of the master controller from suspend mode；
The sampling module is used to acquire the current signal and voltage signal on distribution line, and passes through second communication module
The current signal and voltage signal are sent to the master controller in the form of message.
2. low-power consumption fault-indicating system according to claim 1, which is characterized in that the monitoring terminal further includes lift pressure
Circuit, the booster voltage circuit are connected to the output end of the sampling module, and the AC signal that the sampling module is exported turns
It is changed to direct current signal, and negative signal is converted into positive signal.
3. low-power consumption fault-indicating system according to claim 2, which is characterized in that the booster voltage circuit includes current source
And transistor, the input terminal of the current source is connected with input voltage, output end is connected with the source electrode of the transistor, the crystalline substance
The grid of body pipe is connect as the input terminal of the booster voltage circuit with the output end of the sampling module, the source electrode of the transistor
As the output end of the booster voltage circuit, the grounded drain of the transistor.
4. low-power consumption fault-indicating system according to claim 2, which is characterized in that the monitoring terminal includes microprocessor
Device, the microprocessor are connected to the output end of the booster voltage circuit, the model MSP430 of the microprocessor.
5. low-power consumption fault-indicating system according to claim 1, which is characterized in that the sampling module includes taking electric mould
Block and electromagnetism ring, described take is taken to be arranged with electricity taking coil in electromagnetism ring, the electricity-fetching module is connect with the electricity taking coil, described
Electricity-fetching module includes voltage stabilizing output interface.
6. low-power consumption fault-indicating system according to claim 5, which is characterized in that the electricity taking coil uses alloy material
Matter is made.
7. low-power consumption fault-indicating system according to claim 5, which is characterized in that the monitoring terminal further includes rectification
Filter circuit, the current rectifying and wave filtering circuit are connected to the voltage stabilizing output interface of the electricity-fetching module, with defeated to the electricity-fetching module
The voltage signal gone out is handled.
8. low-power consumption fault-indicating system according to claim 4, which is characterized in that the microprocessor is connected with spare
Battery, the reserve battery are lithium battery.
9. low-power consumption fault-indicating system according to claim 1, which is characterized in that first communication module includes
CC1120 modules and GPRS module, the GPRS module have sleep pattern, the CC1120 modules have continue reception pattern,
Sniff pattern and awakening mode.
10. low-power consumption fault-indicating system according to claim 1, which is characterized in that second communication module includes
Radio frequency chip, dual-mode antenna and crystal oscillating circuit, the dual-mode antenna are connected with the radio frequency chip, the crystal oscillating circuit with it is described
Radio frequency chip is connected.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110517472A (en) * | 2019-09-18 | 2019-11-29 | 湖南农业大学 | Optimised power consumption system based on electric power Internet of Things |
| CN110793655A (en) * | 2019-12-17 | 2020-02-14 | 协成科技股份有限公司 | Low-power-consumption wireless temperature measuring device |
| CN110943537A (en) * | 2019-10-22 | 2020-03-31 | 国网江苏省电力有限公司徐州供电分公司 | Low-power-consumption high-voltage line load monitoring trigger circuit |
-
2018
- 2018-04-12 CN CN201820523261.5U patent/CN207965030U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110517472A (en) * | 2019-09-18 | 2019-11-29 | 湖南农业大学 | Optimised power consumption system based on electric power Internet of Things |
| CN110517472B (en) * | 2019-09-18 | 2024-03-22 | 湖南农业大学 | Power consumption optimization system based on electric power Internet of things |
| CN110943537A (en) * | 2019-10-22 | 2020-03-31 | 国网江苏省电力有限公司徐州供电分公司 | Low-power-consumption high-voltage line load monitoring trigger circuit |
| CN110943537B (en) * | 2019-10-22 | 2024-04-05 | 国网江苏省电力有限公司徐州供电分公司 | Low-power-consumption high-voltage line load monitoring trigger circuit |
| CN110793655A (en) * | 2019-12-17 | 2020-02-14 | 协成科技股份有限公司 | Low-power-consumption wireless temperature measuring device |
| CN110793655B (en) * | 2019-12-17 | 2023-11-07 | 协成科技股份有限公司 | Low-power consumption wireless temperature measuring device |
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Address after: 210000 seventh buildings of Yun Mi City, 19 Ning Ning Road, Yuhuatai District, Nanjing, Jiangsu Patentee after: Jiayuan Technology Co.,Ltd. Address before: 210000 seventh buildings of Yun Mi City, 19 Ning Ning Road, Yuhuatai District, Nanjing, Jiangsu Patentee before: Jiayuan Technology Co.,Ltd. Address after: 210000 seventh buildings of Yun Mi City, 19 Ning Ning Road, Yuhuatai District, Nanjing, Jiangsu Patentee after: Jiayuan Technology Co.,Ltd. Address before: 210000 seventh buildings of Yun Mi City, 19 Ning Ning Road, Yuhuatai District, Nanjing, Jiangsu Patentee before: JIANGSU JIAYUAN TECHNOLOGY Co.,Ltd. |