CN109639145A - Elevator card media system - Google Patents
Elevator card media system Download PDFInfo
- Publication number
- CN109639145A CN109639145A CN201910078275.XA CN201910078275A CN109639145A CN 109639145 A CN109639145 A CN 109639145A CN 201910078275 A CN201910078275 A CN 201910078275A CN 109639145 A CN109639145 A CN 109639145A
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- Prior art keywords
- capacitor
- triode
- resistance
- semiconductor
- oxide
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Power Engineering (AREA)
- Electronic Switches (AREA)
Abstract
The invention discloses a kind of elevator card media systems, including advertisement frame, time showing module, electronic display, billboard and first aid fixed line module, time showing module is arranged on the panel of advertisement frame, the lower section of time showing module is arranged in electronic display, the lower section of electronic display is arranged in billboard, first aid fixed line module is located in the one side wall of advertisement frame, another side wall of advertisement frame is equipped with communication interface, advertisement frame built-in controller and power module, power module are connect with controller；Power module includes voltage input end, first resistor, the first metal-oxide-semiconductor, third capacitor, first capacitor, the second metal-oxide-semiconductor, first resistor, second resistance, DC power supply, first diode, the second capacitor, 3rd resistor, the first triode, the 4th resistance, the second triode, the second voltage-stabiliser tube and voltage output end.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 advertisement media field, in particular to a kind of elevator card media system.
Background technique
Elevator card is that advertising article is placed in elevator to achieve the effect that publicity.Elevator card has relatively strong
Advertisement picture impact force, the feature that selection audiences ability is strong, arrival rate is higher, to show the time long, can read repeatedly,
Carrying contains much information, and media expense is low, predominantly in billboard form audient layered subset, middle high consumption level group's geography position
Set fixation, coverage area Relatively centralized.However, the component that the power pack of traditional elevator advertisement media system uses is more,
Circuit structure is complicated, and hardware cost is higher, it has not been convenient to safeguard.In addition, due to the power pack of traditional elevator advertisement media system
Lack corresponding circuit protection function, such as: lack the function of preventing signal interference, cause the safety and reliability of circuit compared with
Difference.
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 elevator card media 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 elevator card media system is constructed, including
Advertisement frame, time showing module, electronic display, billboard and first aid fixed line module, the time showing module are arranged in institute
It states on the panel of advertisement frame, the lower section of the time showing module is arranged in the electronic display, and the billboard setting exists
The lower section of the electronic display, the first aid fixed line module are located in the one side wall of the advertisement frame, the advertisement frame it is another
One side wall is equipped with communication interface, the advertisement frame built-in controller and power module, the power module and the controller
Connection；
The power module includes voltage input end, first resistor, the first metal-oxide-semiconductor, third capacitor, first capacitor, second
Metal-oxide-semiconductor, first resistor, second resistance, DC power supply, first diode, the second capacitor, 3rd resistor, the first triode, the 4th
Resistance, the second triode, the second voltage-stabiliser tube and voltage output end, the voltage input end pass through the first resistor and described the
The drain electrode of one metal-oxide-semiconductor connects, the source electrode ground connection of first metal-oxide-semiconductor, the grid of first metal-oxide-semiconductor and the third capacitor
One end connection, the other end of the third capacitor respectively with one end of the first capacitor, the anode of first diode and second
The drain electrode of metal-oxide-semiconductor connects, and the grid of first metal-oxide-semiconductor connects with one end of the first resistor and one end of second resistance respectively
It connects, the other end of the other end of the first capacitor, the source electrode of the second metal-oxide-semiconductor and second resistance is grounded, the one or three pole
The base stage of pipe is connect with one end of the 3rd resistor, and one end of the other end of the 3rd resistor and second capacitor connects
It connects, the other end of second capacitor and the emitter of the first triode are grounded, and the DC power supply is respectively with described first
The other end of resistance, the 4th resistance one end connected with the collector of the second triode, the collector of first triode point
Not with the cathode of the first diode, the other end of the 4th resistance, the base stage of the second triode and the second voltage-stabiliser tube cathode
Connection, the emitter of second triode connect with one end of the voltage output end, the anode of second voltage-stabiliser tube with
The other end of voltage output end is grounded, and the capacitance of the third capacitor is 380pF.
In elevator card media system of the present invention, the power module further includes third diode, and described
The anode of three diodes is connect with the DC power supply, the collector of the cathode of the third diode and second triode
Connection, the model S-352T of the third diode.
In elevator card media system of the present invention, the power module further includes the 4th capacitor, and the described 4th
One end of capacitor is connect with the other end of the 4th resistance, the other end of the 4th capacitor and the base of second triode
Pole connection, the capacitance of the 4th capacitor are 430pF.
In elevator card media system of the present invention, the power module further includes the 5th resistance, and the described 5th
One end of resistance is connect with the emitter of second triode, the other end and the voltage output end of the 5th resistance
One end connection, the resistance value of the 5th resistance are 36k Ω.
In elevator card media system of the present invention, first metal-oxide-semiconductor be N-channel MOS pipe, described second
Metal-oxide-semiconductor is P-channel metal-oxide-semiconductor.
In elevator card media system of the present invention, first triode and the second triode are NPN type
Triode.
Implement elevator card media system of the invention, has the advantages that due to being equipped with advertisement frame, time showing
Module, electronic display, billboard and first aid fixed line module, advertisement frame built-in controller and power module；Power module includes
Voltage input end, first resistor, the first metal-oxide-semiconductor, third capacitor, first capacitor, the second metal-oxide-semiconductor, first resistor, second resistance,
DC power supply, first diode, the second capacitor, 3rd resistor, the first triode, the 4th resistance, the second triode, the second pressure stabilizing
Pipe and voltage output end, the power module is compared with the power pack of traditional elevator advertisement media system, the component that uses
It is less, due to saving some components, hardware cost can be reduced in this way, in addition, third capacitor is for preventing the first metal-oxide-semiconductor
With the interference between the second metal-oxide-semiconductor, therefore circuit structure is relatively simple, cost is relatively low, maintain easily, the safety of circuit and can
It is higher by property.
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 elevator card media system one embodiment of the present invention；
Fig. 2 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 elevator card media system embodiment of the present invention, the structural schematic diagram of the elevator card media system such as Fig. 1
It is shown.In Fig. 1, which includes advertisement frame 1, time showing module 2, electronic display 3,4 and of billboard
First aid fixed line module 5, time showing module 2 is arranged on the panel of advertisement frame 1, and electronic display 3 is arranged in time showing mould
The lower section of electronic display 3 is arranged in the lower section of block 2, billboard 4, and first aid fixed line module 5 is located in the one side wall of advertisement frame 1,
It is different from the fixed mode of existing elevator card, elevator is taken while reaching the effect of publicity for people and certain safety is provided
It ensures.
Another side wall of advertisement frame 1 be equipped with communication interface (not shown), the communication interface can be USB interface or
Ethernet interface etc., 1 built-in controller of advertisement frame and power module (not shown), power module are connect with controller, electricity
Source module is used to pass through power supply required for work for the elevator card media system.
Fig. 2 is the circuit diagram of power module in the present embodiment, and in Fig. 2, which includes voltage input end
Vin, first resistor R1, the first metal-oxide-semiconductor M1, third capacitor C3, first capacitor C1, the second metal-oxide-semiconductor M2, first resistor R1, second
Resistance R2, DC power supply VCC, first diode D1, the second capacitor C2,3rd resistor R3, the first triode Q1, the 4th resistance
R4, the second triode Q2, the second voltage-stabiliser tube D2 and voltage output end Vo, voltage input end Vin pass through first resistor R1 and first
The drain electrode of metal-oxide-semiconductor M1 connects, and the source electrode ground connection of the first metal-oxide-semiconductor M1, the grid of the first metal-oxide-semiconductor M1 and one end of third capacitor C3 connect
Connect, the other end of third capacitor C3 respectively with one end of first capacitor C1, the anode of first diode D1 and the second metal-oxide-semiconductor M2
Drain electrode connection, the grid of the first metal-oxide-semiconductor M1 are connect with one end of one end of first resistor R1 and second resistance R2 respectively, the first electricity
The other end, the source electrode of the second metal-oxide-semiconductor M2 and the other end of second resistance R2 for holding C1 are grounded GND, the base of the first triode Q1
Pole is connect with one end of 3rd resistor R3, and the other end of 3rd resistor R3 is connect with one end of the second capacitor C2, the second capacitor C2
The other end and the emitter of the first triode Q1 be grounded GND, DC power supply VCC respectively with the other end of first resistor R1,
One end of 4th resistance R4 is connected with the collector of the second triode Q2, the collector of the first triode Q1 respectively with the one or two pole
The cathode of pipe D1, the other end of the 4th resistance R4, the second triode Q2 base stage connected with the cathode of the second voltage-stabiliser tube D2, second
The emitter of triode Q2 is connect with one end of voltage output end Vo, and the anode of the second voltage-stabiliser tube D2 and voltage output end Vo's is another
One end is grounded GND.
For the power module compared with the power pack of traditional elevator advertisement media system, the component used is less, electricity
Line structure is relatively simple, maintains easily, and due to saving some components, can reduce hardware cost in this way.In addition, third is electric
Appearance C3 is coupled capacitor, for preventing the interference between the first metal-oxide-semiconductor M1 and the second metal-oxide-semiconductor M2, therefore the safety of circuit and
Reliability is higher.It is noted that the capacitance of third capacitor C3 is 380pF, certainly, in practical application in the present embodiment
In, the capacitance of third capacitor C3 can adjust accordingly as the case may be, that is, the capacitance of third capacitor C3 can
To be increased accordingly or be reduced as the case may be.
The working principle of the power module is as follows: first resistor R1, first capacitor C1, third capacitor C3 and the first metal-oxide-semiconductor
M1 forms approximate constant-current charging circuit, powers to voltage output end Vo.It is opened when the voltage of voltage output end Vo reaches chip
Controller is started to work when voltage, and normal voltage occurs in DC power supply VCC.First resistor R1, second resistance R2 and the second metal-oxide-semiconductor
M2 forms breaking circuit, and after the output of DC power supply VCC normal voltage, the second metal-oxide-semiconductor M2 conducting, constant-current charging circuit is closed, and protects
When card works normally, there is no losses for this partial circuit.4th resistance R4, the second triode Q2 and the second voltage-stabiliser tube D2 form line
Property voltage regulator circuit, guarantee the stable power supply of controller.Second capacitor C2,3rd resistor R3, the first triode Q1 and the one or two pole
Pipe D1 forms overvoltage crowbar, and when inputting over-voltage, the voltage VP of second one end capacitor C2 is high level, the first triode Q1
Constant-current charging circuit and linear voltage-stabilizing circuit are closed in conducting, and controller unpowered, entire circuit is not working, and input over-voltage
After state disappears, circuit could be worked normally.
In the present embodiment, the first metal-oxide-semiconductor M1 is N-channel MOS pipe, and the second metal-oxide-semiconductor M2 is P-channel metal-oxide-semiconductor.First triode
Q1 and the second triode Q2 is NPN type triode.Certainly, in practical applications, the first metal-oxide-semiconductor M1 may be P-channel MOS
Pipe, the second metal-oxide-semiconductor M2 may be N-channel MOS pipe, and the first triode Q1 and the second triode Q2 can also be positive-negative-positive three
Pole pipe, but at this moment the structure of circuit also will accordingly change.
In the present embodiment, which further includes third diode D3, the anode and DC power supply of third diode D3
VCC connection, the cathode of third diode D3 are connect with the collector of the second triode Q2.Third diode D3 is two pole of current limliting
Pipe carries out current-limiting protection for the collector current to the second triode Q2, to further enhance the safety of circuit and reliable
Property.It is noted that in the present embodiment, the model S-352T of third diode D3, certainly, in practical applications, third
Diode D3 can also have the diode of similar functions using other models.
In the present embodiment, which further includes the 4th capacitor C4, and one end of the 4th capacitor C4 is with the 4th resistance R4's
Other end connection, the other end of the 4th capacitor C4 are connect with the base stage of the second triode Q2.4th capacitor C4 is coupled capacitor, is used
In preventing the interference between the first triode Q1 and the second triode Q4, further to enhance the safety of circuit and reliable
Property.It is noted that the capacitance of the 4th capacitor C4 is 430pF in the present embodiment, certainly, in practical applications, the 4th electricity
The capacitance for holding C4 can adjust accordingly as the case may be, that is, the capacitance of the 4th capacitor C4 can be according to specific
Situation is increased accordingly or is reduced.
In the present embodiment, which further includes the 5th resistance R5, one end of the 5th resistance R5 and the second triode Q2
Emitter connection, the other end of the 5th resistance R5 connect with one end of voltage output end Vo.5th resistance R5 is current-limiting resistance,
Current-limiting protection is carried out for the emitter current to the second triode Q2, to further enhance current limitation effect.It is noted that
In the present embodiment, the resistance value of the 5th resistance R5 is 36k Ω, and certainly, in practical applications, the resistance value of the 5th resistance R5 can basis
Concrete condition adjusts accordingly, that is, the resistance value of the 5th resistance R5 can be increased accordingly or be subtracted as the case may be
It is small.
In short, the power module uses compared with the power pack of traditional elevator advertisement media system in the present embodiment
Component it is less, circuit structure is relatively simple, maintains easily, and due to saving some components, can reduce hardware in this way
Cost.In addition, being equipped with coupled capacitor in the power module, 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 (6)
1. a kind of elevator card media system, which is characterized in that including advertisement frame, time showing module, electronic display, advertisement
Board and first aid fixed line module, the time showing module are arranged on the panel of the advertisement frame, the electronic display setting
In the lower section of the time showing module, the lower section of the electronic display, the first aid fixed line mould is arranged in the billboard
Block is located in the one side wall of the advertisement frame, and another side wall of the advertisement frame is equipped with communication interface, built in the advertisement frame
Controller and power module, the power module are connect with the controller；
The power module includes voltage input end, first resistor, the first metal-oxide-semiconductor, third capacitor, first capacitor, the 2nd MOS
Pipe, first resistor, second resistance, DC power supply, first diode, the second capacitor, 3rd resistor, the first triode, the 4th electricity
Resistance, the second triode, the second voltage-stabiliser tube and voltage output end, the voltage input end pass through the first resistor and described first
The drain electrode of metal-oxide-semiconductor connects, the source electrode ground connection of first metal-oxide-semiconductor, and the one of the grid of first metal-oxide-semiconductor and the third capacitor
End connection, the other end of the third capacitor respectively with one end of the first capacitor, the anode of first diode and the 2nd MOS
The drain electrode of pipe connects, and the grid of first metal-oxide-semiconductor is connect with one end of one end of the first resistor and second resistance respectively,
The other end of the other end of the first capacitor, the source electrode of the second metal-oxide-semiconductor and second resistance is grounded, first triode
Base stage is connect with one end of the 3rd resistor, and the other end of the 3rd resistor is connect with one end of second capacitor, institute
The emitter of the other end and the first triode of stating the second capacitor is grounded, the DC power supply respectively with the first resistor
The other end, the 4th resistance one end connected with the collector of the second triode, the collector of first triode respectively with institute
State the cathode of first diode, the other end of the 4th resistance, the second triode base stage connected with the cathode of the second voltage-stabiliser tube, institute
The emitter for stating the second triode is connect with one end of the voltage output end, the anode and voltage output of second voltage-stabiliser tube
The other end at end is grounded, and the capacitance of the third capacitor is 380pF.
2. elevator card media system according to claim 1, which is characterized in that the power module further includes the three or two
The anode of pole pipe, the third diode is connect with the DC power supply, the cathode of the third diode and the described 2nd 3
The collector of pole pipe connects, the model S-352T of the third diode.
3. elevator card media system according to claim 2, which is characterized in that the power module further includes the 4th electricity
Hold, one end of the 4th capacitor connect with the other end of the 4th resistance, the other end of the 4th capacitor and described the
The base stage of two triodes connects, and the capacitance of the 4th capacitor is 430pF.
4. elevator card media system according to claim 3, which is characterized in that the power module further includes the 5th electricity
Resistance, one end of the 5th resistance connect with the emitter of second triode, the other end of the 5th resistance with it is described
One end of voltage output end connects, and the resistance value of the 5th resistance is 36k Ω.
5. elevator card media system according to any one of claims 1 to 4, which is characterized in that first metal-oxide-semiconductor
For N-channel MOS pipe, second metal-oxide-semiconductor is P-channel metal-oxide-semiconductor.
6. elevator card media system according to any one of claims 1 to 4, which is characterized in that the one or three pole
Pipe and the second triode are NPN type triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910078275.XA CN109639145A (en) | 2019-01-28 | 2019-01-28 | Elevator card media system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910078275.XA CN109639145A (en) | 2019-01-28 | 2019-01-28 | Elevator card media system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109639145A true CN109639145A (en) | 2019-04-16 |
Family
ID=66063939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910078275.XA Pending CN109639145A (en) | 2019-01-28 | 2019-01-28 | Elevator card media system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109639145A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202905022U (en) * | 2012-11-04 | 2013-04-24 | 北京金色啄木鸟科技开发有限责任公司 | Elevator advertising medium with emergency telephone |
| CN106322321A (en) * | 2016-11-03 | 2017-01-11 | 中山市荣亮照明有限公司 | LED illumination down lamp with protection constant current drive |
| CN206820655U (en) * | 2017-06-26 | 2017-12-29 | 青岛鼎焌电气有限公司 | A kind of chip high voltage power supply circuit |
| US20180331614A1 (en) * | 2017-05-11 | 2018-11-15 | Steven E. Summer | Cryogenic operation, radiation tolerant, low quiescent current, low drop out voltage regulator |
-
2019
- 2019-01-28 CN CN201910078275.XA patent/CN109639145A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202905022U (en) * | 2012-11-04 | 2013-04-24 | 北京金色啄木鸟科技开发有限责任公司 | Elevator advertising medium with emergency telephone |
| CN106322321A (en) * | 2016-11-03 | 2017-01-11 | 中山市荣亮照明有限公司 | LED illumination down lamp with protection constant current drive |
| US20180331614A1 (en) * | 2017-05-11 | 2018-11-15 | Steven E. Summer | Cryogenic operation, radiation tolerant, low quiescent current, low drop out voltage regulator |
| CN206820655U (en) * | 2017-06-26 | 2017-12-29 | 青岛鼎焌电气有限公司 | A kind of chip high voltage power supply circuit |
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Application publication date: 20190416 |