CN109103802A - Convenience-for-people power information system - Google Patents
Convenience-for-people power information system Download PDFInfo
- Publication number
- CN109103802A CN109103802A CN201811174300.6A CN201811174300A CN109103802A CN 109103802 A CN109103802 A CN 109103802A CN 201811174300 A CN201811174300 A CN 201811174300A CN 109103802 A CN109103802 A CN 109103802A
- Authority
- CN
- China
- Prior art keywords
- module
- diode
- connect
- resistance
- capacitor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B15/00—Supervisory desks or panels for centralised control or display
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F27/00—Combined visual and audible advertising or displaying, e.g. for public address
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The invention discloses a kind of convenience-for-people power information systems, including pedestal, touch display screen and solar panel, the inside of touch display screen is equipped with main control board, main control board is equipped with microprocessor, memory, audio decoder module, power amplifier, display module, power module and wireless communication module, memory, audio decoder module, display module, power module and wireless communication module are connect with microprocessor, audio decoder module is connect by power amplifier with loudspeaker, wireless communication module connects mobile terminal and electricity information disclosure center；Power module includes first capacitor, first resistor, first diode, the second diode, the first triode, second resistance, the second triode, 3rd resistor, DC power supply, third zener diode, the 4th resistance, the second capacitor, third capacitor, third transistor and the 5th resistance.Circuit structure of the present invention is relatively simple, cost is relatively low, maintain easily, the safety and reliability of circuit is higher.
Description
Technical field
The present invention relates to field of power system, in particular to a kind of convenience-for-people power information system.
Background technique
The electrical energy production and consumption system that electric system is made of links such as power generation, transmission of electricity, power transformation, distribution and electricity consumptions.
Its function is the non-renewable energy of nature to be converted to electric energy by generation power device, then incite somebody to action through transmission of electricity, power transformation and distribution
Electric energy is supplied to each user.To realize this function, electric system also has corresponding information in links and different levels
With control system, the production process of electric energy is measured, adjusted, controlled, protect, communicates and dispatched, to guarantee that user obtains
Safety, economy, good electric energy.The component that the power pack of conventional electric power system uses is more, and circuit structure is complicated, hardware
Higher cost, it has not been convenient to safeguard.In addition, since the power pack of conventional electric power system lacks corresponding circuit protection function, example
Such as: preventing signal interference function, cause the safety and reliability of circuit poor.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the above drawbacks of the prior art, provide a kind of circuit structure compared with
For simple, cost is relatively low, maintains easily, the higher convenience-for-people power information system of the safety and reliability of circuit.
The technical solution adopted by the present invention to solve the technical problems is: a kind of convenience-for-people power information system is constructed, including
Pedestal, touch display screen and solar panel, the touch display screen are fixedly mounted on the base, the touch display
The upper end fixed placement of screen has the top plate with convex edge, and the solar panel is fixed on the top plate, the bottom
Seat in be equipped with battery and solar inverter, the side of the pedestal be equipped with alternating current incoming end, the alternating current incoming end and
The solar inverter is connect with the battery, and the inside of the touch display screen is equipped with main control board, the touching
The two sides for touching display screen are separately installed with loudspeaker, and the battery and loudspeaker are connect with the main control board, described
Main control board is equipped with microprocessor, memory, audio decoder module, power amplifier, display module, power module and nothing
Line communication module, the memory, audio decoder module, display module, power module and wireless communication module with it is described micro-
Processor connection, the audio decoder module are connect by the power amplifier with the loudspeaker, the touch display screen
It is connect with the microprocessor, the wireless communication module is separately connected mobile terminal and electricity information disclosure center；
The power module includes first capacitor, first resistor, first diode, the second diode, the first triode,
Two resistance, the second triode, 3rd resistor, DC power supply, third zener diode, the 4th resistance, the second capacitor, third electricity
Hold, third transistor and the 5th resistance, the base stage of first triode respectively with one end of the first capacitor, first resistor
One end connected with the anode of first diode, the cathode of the first diode is connect with the cathode of second diode,
The plus earth of second diode, the other end of the first resistor respectively with the other end of the first capacitor, second
One end of resistance, DC power supply are connected with the collector of third transistor, the other end of the second resistance and the described 2nd 3
The collector of pole pipe connects, and the collector of first triode is connect with the anode of the third zener diode, and described the
The emitter of one triode is connect with the emitter of one end of the 3rd resistor and the second triode respectively, the 3rd resistor
Other end ground connection, the cathode of third zener diode one end with one end of the 4th resistance and third capacitor respectively
Connection, the base stage of second triode is connect with one end of the other end of the 4th resistance and the second capacitor respectively, described
The other end of second capacitor is grounded, and the other end of the third capacitor is connect with the base stage of the third transistor, the third
The emitter of triode is 320pF by the 5th resistance eutral grounding, the capacitance of the third capacitor.
In convenience-for-people power information system of the present invention, the power module further includes the 4th diode, and described
The anode of four diodes is connect with the DC power supply, the cathode of the 4th diode and the collector of the third transistor
Connection, the model L-2733 of the 4th diode.
In convenience-for-people power information system of the present invention, the power module further includes the 5th diode, and described
The anode of five diodes is connect with the base stage of second triode, and the cathode of the 5th diode is electric with the described 4th respectively
The connection of one end of the other end of resistance and the second capacitor, the model S-822T of the 5th diode.
In convenience-for-people power information system of the present invention, the power module further includes the 6th resistance, and the described 6th
One end of resistance is connect with the other end of the other end of the first capacitor and first resistor respectively, the 6th resistance it is another
End is connect with the DC power supply, and the resistance value of the 6th resistance is 36k Ω.
In convenience-for-people power information system of the present invention, first triode is NPN type triode.
In convenience-for-people power information system of the present invention, second triode is NPN type triode.
In convenience-for-people power information system of the present invention, the third transistor is NPN type triode.
In convenience-for-people power information system of the present invention, the wireless communication module be bluetooth module, WIFI module,
Gsm module, GPRS module, CDMA module, CDMA2000 module, WCDMA module, TD-SCDMA module, Zigbee module or
LoRa module.
Implement convenience-for-people power information system of the invention, has the advantages that due to being equipped with pedestal, touch display screen
And solar panel, the inside of touch display screen are equipped with main control board, main control board is equipped with microprocessor, storage
Device, audio decoder module, power amplifier, display module, power module and wireless communication module；Power module includes the first electricity
It is appearance, first resistor, first diode, the second diode, the first triode, second resistance, the second triode, 3rd resistor, straight
Galvanic electricity source, third zener diode, the 4th resistance, the second capacitor, third capacitor, third transistor and the 5th resistance, the power supply
Power pack of the module relative to conventional electric power system, the component used is less, due to saving some components, in this way
Hardware cost can be reduced, in addition, third capacitor is used to prevent the interference between the first triode and third transistor, therefore electricity
Line structure is relatively simple, cost is relatively low, maintain easily, the safety and reliability of circuit is higher.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram in the convenience-for-people power information system one embodiment of the present invention；
Fig. 2 is the part-structure block diagram of convenience-for-people power information system in the embodiment；
Fig. 3 is the circuit diagram of power module in the embodiment.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the convenience-for-people power information system embodiment of the present invention, the structural schematic diagram of the convenience-for-people power information system such as Fig. 1
Shown, the part-structure block diagram of the convenience-for-people power information system is as shown in Figure 2.In the present embodiment, the convenience-for-people power information system
Including pedestal 1, touch display screen 2 and solar panel 3, wherein touch display screen 2 is fixedly mounted on pedestal 1, is touched aobvious
The upper end fixed placement of display screen 2 has the top plate 4 with convex edge, and solar panel 3 is fixedly installed on the top plate 4, sets in pedestal 1
There are battery 5 and solar inverter 6, is equipped with alternating current incoming end 7, alternating current incoming end 7 and solar energy inversion in the side of pedestal 1
Device 6 is connect with battery 5, and the inside of touch display screen 2 is equipped with main control board 8, and the two sides of touch display screen 2 are installed respectively
There is loudspeaker 9, battery 5 and loudspeaker 9 are connect with main control board 8, and main control board 8 is equipped with microprocessor 81, deposits
Reservoir 82, audio decoder module 83, power amplifier 84, display module 85, power module 86 and wireless communication module 87, storage
Device 82, audio decoder module 83, display module 85, power module 86 and wireless communication module 87 are connect with microprocessor 81,
Audio decoder module 83 is connect by power amplifier 84 with loudspeaker 9, and touch display screen 2 is connect with microprocessor 81, wirelessly
Communication module 87 is separately connected mobile terminal and electricity information disclosure center.
In the present embodiment, the size of touch display screen 2 is long 85cm-95cm, wide 55cm-65cm.
The working principle of the convenience-for-people power information system is as follows: when there are new power information needs at electricity information disclosure center
When publication, its information that input needs to issue on control computer is only needed, then module 87 is sent information immediately by wireless communication
Onto each mobile terminal, when there is new information publication, microprocessor 81 controls the sending voice broadcasting of loudspeaker 9 and people is reminded to have
Information publication, while sending new power information on each mobile terminal in time, people can also by mobile terminal come or
The information that person is issued before self-service query by touch display screen 2, to prevent from omitting important information, the convenience-for-people power information system
System can be realized the release quickly to power information, and efficiency for issuing is higher, in addition, loudspeaker 9 is equipped with, convenient in the new letter of publication
Breath is broadcasted by voice in time simultaneously, while using touch display screen 2, facilitates people's self-service query power information, practicability compared with
By force.
In the present embodiment, above-mentioned mobile terminal can be smart phone, tablet computer or PDA etc..Wireless communication module 87
It can be bluetooth module, WIFI module, gsm module, GPRS module, CDMA module, CDMA2000 module, WCDMA module, TD-
SCDMA module, Zigbee module or LoRa module etc..By the way that various wireless communication mode is arranged, it can not only increase channel radio
The flexibility of letter mode, moreover it is possible to meet the needs of different user and different occasions.When in particular by LoRa module, communication away from
From farther out, and communication performance is relatively stable, is suitable for the higher occasion of QoS requirement.
Fig. 3 is the circuit diagram of power module in the present embodiment, in Fig. 3, the power module 86 include first capacitor C1,
First resistor R1, first diode D1, the second diode D2, the first triode Q1, second resistance R2, the second triode Q2,
Three resistance R3, DC power supply VCC, third zener diode S3, the 4th resistance R4, the second capacitor C2, third capacitor C3, the three or three
Pole pipe Q3 and the 5th resistance R5, the base stage of the first triode Q1 one end with one end of first capacitor C1, first resistor R1 respectively
It is connected with the anode of first diode D1, the cathode of first diode D1 is connect with the cathode of the second diode D2, the two or two pole
The plus earth of pipe D2, the other end of first resistor R1 one end, straight with the other end of first capacitor C1, second resistance R2 respectively
Galvanic electricity source VCC is connected with the collector of third transistor Q3, the collector of the other end of second resistance R2 and the second triode Q2
Connection, the collector of the first triode Q1 are connect with the anode of third zener diode D3, the emitter point of the first triode Q1
The emitter of one end and the second triode Q2 for not allowing with 3rd resistor is connect, the other end ground connection of 3rd resistor R3, and third is steady
The cathode of pressure diode D3 is connect with one end of one end of the 4th resistance R4 and third capacitor C3 respectively, the base of the second triode Q2
Pole is connect with one end of the other end of the 4th resistance R4 and the second capacitor C2 respectively, the other end ground connection of the second capacitor C2, third
The other end of capacitor C3 is connect with the base stage of third transistor Q3, and the emitter of third transistor Q3 is connect by the 5th resistance R5
Ground.
The power pack of the power module 86 relative to conventional electric power system, the component used is less, circuit structure
It is relatively simple, it maintains easily, due to saving some components, hardware cost can be reduced in this way.In addition, third capacitor C3 is
Coupled capacitor, for preventing the interference between the first triode Q1 and third transistor Q3, therefore the safety of circuit and reliable
Property is higher.It is noted that in the present embodiment you, the capacitance of third capacitor C3 is 320pF, certainly, in practical applications,
The capacitance of third capacitor C3 can adjust accordingly as the case may be, that is, the capacitance of third capacitor C3 can root
It is increased accordingly or is reduced according to concrete condition.
The power module 86 is using the characteristic of diode and capacitor, so that output voltage stability is high, fluctuation is small, and temperature
Coefficient is small, and temperature stability is good, and noise is low, and structure is simple, the power supply suitable for low-voltage.
In the present embodiment, the first triode Q1 be NPN type triode, the second triode Q2 be NPN type triode, the three or three
Pole pipe Q3 is NPN type triode.Certainly, in practical applications, the first triode Q1 may be PNP type triode, and the two or three
Pole pipe Q2 may be PNP type triode, and third transistor Q3 may be PNP type triode, but the at this moment structure of circuit
It accordingly to change.
In the present embodiment, which further includes the 4th diode D4, the anode and direct current of the 4th diode D4
Source VCC connection, the cathode of the 4th diode D4 are connect with the collector of third transistor Q3.4th diode D4 is two pole of current limliting
Pipe carries out current-limiting protection for the collector current to third transistor Q3, to further enhance the safety of circuit and reliable
Property.It is noted that in the present embodiment, the model L-2733 of the 4th diode D4, certainly, in practical applications, the 4th
Diode D4 can also have the diode of similar functions using other models.
In the present embodiment, which further includes the 5th diode D5, the anode and the two or three of the 5th diode D5
The base stage of pole pipe Q2 connects, the cathode of the 5th diode D5 one end with the other end of the 4th resistance R4 and the second capacitor C2 respectively
Connection.5th diode D5 be Current Limiting Diodes, for the second triode Q2 base current carry out current-limiting protection, with more into
The safety and reliability of one step enhancing circuit.It is noted that in the present embodiment, the model S- of the 5th diode D5
822T, certainly, in practical applications, the 5th diode D5 can also have the diode of similar functions using other models.
In the present embodiment, which further includes the 6th resistance R6, and one end of the 6th resistance R6 is electric with first respectively
The other end for holding C1 is connected with the other end of first resistor R1, and the other end of the 6th resistance R6 is connect with DC power supply VCC.6th
Resistance R6 is current-limiting resistance, for carrying out current-limiting protection, to further enhance current limitation effect.It is noted that the present embodiment
In, the resistance value of the 6th resistance R6 is 36k Ω, and certainly, in practical applications, the resistance value of the 6th resistance R6 can be as the case may be
It adjusts accordingly, that is, the resistance value of the 6th resistance R6 can be increased accordingly or be reduced as the case may be.
In short, in the present embodiment, the power pack of the power module 86 relative to conventional electric power system, the first device used
Part is less, and circuit structure is relatively simple, maintains easily, and due to saving some components, can reduce hardware cost in this way.Separately
Outside, coupled capacitor is equipped in the power module 86, therefore the safety and reliability of circuit is higher.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of convenience-for-people power information system, which is characterized in that described including pedestal, touch display screen and solar panel
Touch display screen is fixedly mounted on the base, and the upper end fixed placement of the touch display screen has the top plate with convex edge,
The solar panel is fixed on the top plate, battery and solar inverter is equipped in the pedestal, in institute
The side for stating pedestal is equipped with alternating current incoming end, and the alternating current incoming end and the solar inverter connect with the battery
It connects, the inside of the touch display screen is equipped with main control board, and the two sides of the touch display screen are separately installed with loudspeaker, institute
It states battery and loudspeaker to connect with the main control board, the main control board is equipped with microprocessor, memory, sound
Frequency decoder module, power amplifier, display module, power module and wireless communication module, the memory, audio decoder mould
Block, display module, power module and wireless communication module are connect with the microprocessor, and the audio decoder module passes through institute
It states power amplifier to connect with the loudspeaker, the touch display screen is connect with the microprocessor, the radio communication mold
Block is separately connected mobile terminal and electricity information disclosure center；
The power module includes first capacitor, first resistor, first diode, the second diode, the first triode, the second electricity
Resistance, the second triode, 3rd resistor, DC power supply, third zener diode, the 4th resistance, the second capacitor, third capacitor,
Three triodes and the 5th resistance, the base stage of first triode respectively with one end of the first capacitor, first resistor one
End is connected with the anode of first diode, and the cathode of the first diode is connect with the cathode of second diode, described
The plus earth of second diode, the other end of the first resistor respectively with the other end of the first capacitor, second resistance
One end, DC power supply connected with the collector of third transistor, the other end of the second resistance and second triode
Collector connection, the collector of first triode connect with the anode of the third zener diode, the described 1st
The emitter of pole pipe is connect with the emitter of one end of the 3rd resistor and the second triode respectively, the 3rd resistor it is another
One end ground connection, the cathode of the third zener diode connect with one end of the 4th resistance and one end of third capacitor respectively
It connecing, the base stage of second triode is connect with one end of the other end of the 4th resistance and the second capacitor respectively, and described
The other end of two capacitors is grounded, and the other end of the third capacitor is connect with the base stage of the third transistor, and the described 3rd 3
The emitter of pole pipe is 320pF by the 5th resistance eutral grounding, the capacitance of the third capacitor.
2. convenience-for-people power information system according to claim 1, which is characterized in that the power module further includes the four or two
The anode of pole pipe, the 4th diode is connect with the DC power supply, the cathode and the described 3rd 3 of the 4th diode
The collector of pole pipe connects, the model L-2733 of the 4th diode.
3. convenience-for-people power information system according to claim 2, which is characterized in that the power module further includes the five or two
The anode of pole pipe, the 5th diode is connect with the base stage of second triode, the cathode difference of the 5th diode
It is connect with one end of the other end of the 4th resistance and the second capacitor, the model S-822T of the 5th diode.
4. convenience-for-people power information system according to claim 3, which is characterized in that the power module further includes the 6th electricity
Resistance, one end of the 6th resistance connect with the other end of the other end of the first capacitor and first resistor respectively, and described the
The other end of six resistance is connect with the DC power supply, and the resistance value of the 6th resistance is 36k Ω.
5. convenience-for-people power information system according to any one of claims 1 to 4, which is characterized in that the one or three pole
Pipe is NPN type triode.
6. convenience-for-people power information system according to any one of claims 1 to 4, which is characterized in that the two or three pole
Pipe is NPN type triode.
7. convenience-for-people power information system according to any one of claims 1 to 4, which is characterized in that the three or three pole
Pipe is NPN type triode.
8. convenience-for-people power information system according to any one of claims 1 to 4, which is characterized in that the wireless communication
Module is bluetooth module, WIFI module, gsm module, GPRS module, CDMA module, CDMA2000 module, WCDMA module, TD-
SCDMA module, Zigbee module or LoRa module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811174300.6A CN109103802A (en) | 2018-10-09 | 2018-10-09 | Convenience-for-people power information system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811174300.6A CN109103802A (en) | 2018-10-09 | 2018-10-09 | Convenience-for-people power information system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109103802A true CN109103802A (en) | 2018-12-28 |
Family
ID=64868610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811174300.6A Pending CN109103802A (en) | 2018-10-09 | 2018-10-09 | Convenience-for-people power information system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109103802A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205692539U (en) * | 2016-05-30 | 2016-11-16 | 国网山东省电力公司高唐县供电公司 | A kind of convenience-for-people information system of electric power |
| CN107392576A (en) * | 2017-07-05 | 2017-11-24 | 佛山杰致信息科技有限公司 | Cloud payment mechanism |
| CN108199583A (en) * | 2018-01-03 | 2018-06-22 | 广州爱易学智能信息科技有限公司 | Library management system |
-
2018
- 2018-10-09 CN CN201811174300.6A patent/CN109103802A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205692539U (en) * | 2016-05-30 | 2016-11-16 | 国网山东省电力公司高唐县供电公司 | A kind of convenience-for-people information system of electric power |
| CN107392576A (en) * | 2017-07-05 | 2017-11-24 | 佛山杰致信息科技有限公司 | Cloud payment mechanism |
| CN108199583A (en) * | 2018-01-03 | 2018-06-22 | 广州爱易学智能信息科技有限公司 | Library management system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109193939A (en) | Power information system with monitoring function | |
| CN103368557B (en) | Low quiescent current level shifting circuit and be provided with the electronic equipment of this circuit | |
| CN203324738U (en) | Low-quiescent current level switching circuit and electronic equipment provided therewith | |
| CN201063557Y (en) | Solar energy charger | |
| CN210442787U (en) | Multifunctional touch display | |
| CN109103802A (en) | Convenience-for-people power information system | |
| CN101860054A (en) | Charge management circuit of lithium-ion battery | |
| CN204795555U (en) | Touch screen bluetooth speaker | |
| CN204046673U (en) | A kind of mobile phone with double cell function | |
| CN110347231A (en) | Touch screen query machine | |
| CN208046872U (en) | Sound equipment with communication | |
| CN207571626U (en) | It is a kind of based on vehicle-mounted intelligent household management system | |
| CN209103784U (en) | A kind of solar energy incudes aobvious word sound circuit and solar energy incudes aobvious word voice light | |
| CN208094254U (en) | A kind of novel power supply system of mobile pull rod speaker | |
| CN204179704U (en) | A kind of safety and environmental protection intelligent solar Mobile phone charging station | |
| CN204794982U (en) | Steady voltage radio | |
| CN202841307U (en) | Network remote controller | |
| CN109584121A (en) | A kind of tutoring system based on information technology | |
| CN204993046U (en) | Discharge circuit, power and display device | |
| CN210181502U (en) | Vertical touch query machine | |
| CN211154591U (en) | Multi-section combined multifunctional furniture | |
| CN108879825A (en) | A kind of charger baby with a variety of power generation modes | |
| CN202652375U (en) | Television power supply system with simple power fail safeguard | |
| CN202306717U (en) | Payment circuit of mobile payment terminal | |
| CN212992016U (en) | Multifunctional mobile power supply with variable current output |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181228 |
|
| RJ01 | Rejection of invention patent application after publication |