CN206117484U - Subway display terminal power controlling means based on RS422 agreement - Google Patents
Subway display terminal power controlling means based on RS422 agreement Download PDFInfo
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- CN206117484U CN206117484U CN201621168112.9U CN201621168112U CN206117484U CN 206117484 U CN206117484 U CN 206117484U CN 201621168112 U CN201621168112 U CN 201621168112U CN 206117484 U CN206117484 U CN 206117484U
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- power
- display terminal
- subway
- power control
- interface
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Abstract
The utility model relates to a power control technical field, more specifically relates to a subway display terminal power controlling means based on RS422 agreement, this subway display terminal power controlling means based on RS422 agreement, including power controlling means box, still include RS422 communication protocol transmission line, subway display terminal power transport interface and set up the power control system in power controlling means box, it is continuous with power control system that subway display terminal power carries the interface to pass through RS422 communication protocol interface circuit, the utility model discloses a subway display terminal power controlling means based on RS422 agreement through the setting that RS422 communication protocol interface circuit, subway display terminal power carried interface and power control system, makes the subway display terminal can the remote power that obtains the steady voltage at a high speed, can also automatic break -make when electric connection is unusual between power and the load plays the effect of protection instrument.
Description
Technical field
This utility model is related to power supply technical field, aobvious more particularly, to a kind of subway based on RS422 agreements
Show terminal supplying power control device.
Background technology
Subway is increasingly becoming most important a kind of vehicles in people's daily life, and wherein subway display terminal is also in people
Various leisurely and carefree amusement information are provided during subway is taken, due to subway high-speed traveling, and turnover platform mistake
Cheng Zhong, subway display terminal often occurs that instantaneous power deficiency causes the situation of blank screen.
It is therefore proposed that a kind of subway display terminal power control reality based on RS422 agreements for solving the above problems
For necessity.
Utility model content
This utility model is to overcome at least one defect (deficiency) described in above-mentioned prior art, there is provided one kind is based on
The subway display terminal power control of RS422 agreements.
To solve above-mentioned technical problem, the technical solution of the utility model is as follows：A kind of subway based on RS422 agreements shows
Show terminal supplying power control device, including power control box, also including RS422 communication protocol transmission lines, subway display terminal
Power supply interfacing conveyor and the power control system being arranged in power control box, the subway display terminal power supply conveying connects
Mouth is connected by RS422 communication protocol interface circuits with power control system, by RS422 communication protocol interface circuits, subway
The setting of display terminal power supply interfacing conveyor and power control system, enables subway display terminal to obtain voltage stabilizing at high speed at a distance
Power supply, when being electrically connected with abnormal between power supply and load can also auto switching play protection instrument.
Further, the RS422 communication protocols transmission line includes RS422 communication interface chips, data is activation port, double
The temperature control module that twisted wire, data connect port and are connected with RS422 communication interface chips, the data is activation port passes through RS422
Communication interface chip, temperature control module and twisted-pair feeder connect port and are connected with data, are sent out by RS422 communication interface chips, data
Sending end mouth, twisted-pair feeder, data connect port and the setting with temperature control module, make power delivery speed high and long transmission distance, are difficult
Consume electric energy and anti-interference strong, also eliminates heat shock phenomenon.
Further, the power control system includes power input, power output end, switch, protection circuit mould
Block and power-supply controller of electric, described power-supply controller of electric one end is connected with power input, and the other end is by protection circuit module and opens
Pass is connected with power output end, by power input, power output end, switch, protection circuit module and power-supply controller of electric
Arrange, make to protect power supply and stable voltage can be exported, can also auto switching in emergency situation.
Further, the power-supply controller of electric is integrated chip, by the setting of integrated chip, makes that digital journey can be stored
Sequence, so as to protect power supply, it is to avoid power supply is burned when occurring abnormal.
Further, the protection circuit module is provided with burst current control circuit, by burst current control circuit
Setting, enable out-put supply and keep stable voltage.
Further, the switch is electrical switch, by the setting of electrical switch, makes on/off more accurate sensitive.
Further, the subway display terminal power supply interfacing conveyor includes scialyscope power interface, projection screen electricity
Source interface and the input equipment power interface being connected with computer, the scialyscope power interface, projection screen power interface and
With input equipment power interface respectively two-by-two against power control box side is arranged on, by scialyscope power interface, throw
The setting of shadow screen power supplies interface and input equipment power interface, makes based on the subway display terminal power supply of RS422 agreements
Device can provide stably suitable voltage x current and use to load.
Compared with prior art, the beneficial effect of technical solutions of the utility model is：
(1) the disclosed subway display terminal power control based on RS422 agreements of this utility model, by RS422
The setting of communication protocol interface circuit, subway display terminal power supply interfacing conveyor and power control system, makes subway display terminal
The power supply of voltage stabilizing can be at high speed obtained at a distance, can also auto switching protection when being electrically connected with abnormal between power supply and load
The effect of instrument.
(2) the disclosed subway display terminal power control based on RS422 agreements of this utility model, by RS422
Communication interface chip, data is activation port, twisted-pair feeder, data connect port and the setting with temperature control module, make power delivery speed
High and long transmission distance, is difficult to consume electric energy and anti-interference strong, also eliminates heat shock phenomenon.
(3) the disclosed subway display terminal power control based on RS422 agreements of this utility model, by surging electricity
The setting of flow control circuit, enables the voltage that out-put supply keeps stable.
(4) the disclosed subway display terminal power control based on RS422 agreements of this utility model, by electronic cutting
The setting of pass, makes on/off more accurate sensitive.
Description of the drawings
Fig. 1 is the subway display terminal power control structural representation based on RS422 agreements in this utility model.
In figure, 1 is power control box, 2 is RS422 communication protocol transmission lines, 3 is the conveying of subway display terminal power supply
Interface, 4 are power control system.
Specific embodiment
Accompanying drawing being for illustration only property explanation, it is impossible to be interpreted as the restriction to this patent；It is attached in order to more preferably illustrate the present embodiment
Scheme some parts to have omission, zoom in or out, do not represent the size of actual product；To those skilled in the art,
Some known features and its explanation in accompanying drawing may be omitted and will be understood by.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to be mechanically connected, or electrically connect；Can be joined directly together, or be indirectly connected with by intermediary, can be with
Say the connection of two element internals.For the ordinary skill in the art, can understand that above-mentioned term exists with concrete condition
Concrete meaning of the present utility model.The technical solution of the utility model is done further with reference to the accompanying drawings and examples
It is bright.
As shown in figure 1, present embodiment discloses a kind of subway display terminal power control based on RS422 agreements,
Including power control box 1, also including RS422 communication protocols transmission line 2, subway display terminal power supply interfacing conveyor 3 and set
The power control system 4 in power control box is put, subway display terminal power supply interfacing conveyor passes through RS422 communication protocols
Interface circuit is connected with power control system, by RS422 communication protocol interface circuits, subway display terminal power supply interfacing conveyor
With the setting of power control system, subway display terminal is set to obtain the power supply of voltage stabilizing at high speed at a distance, in power supply and load
Between when being electrically connected with abnormal can also auto switching play protection instrument.
In this utility model, RS422 communication protocols transmission line includes RS422 communication interface chips, data is activation port, double
The temperature control module that twisted wire, data connect port and are connected with RS422 communication interface chips, data is activation port is communicated by RS422
Interface chip, temperature control module and twisted-pair feeder connect port and are connected with data, by RS422 communication interface chips, data sending terminal
Mouth, twisted-pair feeder, data connect port and the setting with temperature control module, make power delivery speed high and long transmission distance, are difficult consume
Electric energy and anti-interference strong, also eliminates heat shock phenomenon.Wherein, power control system include power input, power output end,
Switch, protection circuit module and power-supply controller of electric, power-supply controller of electric one end is connected with power input, and the other end is by protecting electricity
Road module and switch are connected with power output end, make to protect power supply and can export stable voltage, can also in emergency situation
Auto switching.In order to digital process can be stored, so as to protect power supply, it is to avoid power supply is burned when occurring abnormal, power supply
Device is integrated chip.
In addition, protection circuit module is provided with burst current control circuit, by the setting of burst current control circuit,
Enable the voltage that out-put supply keeps stable.And it is electrical switch to switch, make on/off more accurate sensitive.Wherein, subway shows
Show that terminal supplying power interfacing conveyor includes scialyscope power interface, projection screen power interface and the input equipment being connected with computer
Power interface, scialyscope power interface, projection screen power interface and with input equipment power interface respectively two-by-two against setting
In power control box side, enable to provide stably suitable based on the subway display terminal power control of RS422 agreements
Voltage x current use to load.
When using, external power supply Jing power inputs enter the integrated chip of protection circuit module and storage digital process,
During this, if exception, electrical switch meeting auto switching protection circuit is steady by power output end output if normal
Voltage source, then flows through data and connects port into RS422 communication interface chip Jing Double-strand transmissions to data is activation port, works as temperature
When spending high, the temperature control module being connected with RS422 communication interface chips eliminates heat shock phenomenon, even most remote at last
Also can high-speed transfer stabilized power source be delivered to scialyscope power interface, projection screen power interface and be connected with computer it is defeated
Enter installation's power source interface, so as to provide stabilized power source for subway display terminal.
In figure, position relationship being for illustration only property explanation is described, it is impossible to be interpreted as the restriction to this patent；Obviously, this reality
This utility model example is only intended to clearly illustrate with new above-described embodiment, and is not to this utility model
Embodiment restriction.For those of ordinary skill in the field, can also make on the basis of the above description
The change or variation of other multi-forms.There is no need to be exhaustive to all of embodiment.It is all new in this practicality
Any modification, equivalent and improvement made within the spirit and principle of type etc., should be included in this utility model right will
Within the protection domain asked.
Claims (7)
1. a kind of subway display terminal power control based on RS422 agreements, including power control box, its feature exists
In also including RS422 communication protocol interface circuits, subway display terminal power supply interfacing conveyor and being arranged on power control box
Interior power control system, the subway display terminal power supply interfacing conveyor is by RS422 communication protocol interfaces circuit and power supply
Control system is connected.
2. the subway display terminal power control based on RS422 agreements according to claim 1, it is characterised in that
The RS422 communication protocols transmission line include RS422 communication interface chips, data is activation port, twisted-pair feeder, data connect port and
The temperature control module being connected with RS422 communication interface chips, the data is activation port passes through RS422 communication interface chips, temperature control
Module and twisted-pair feeder connect port and are connected with data.
3. the subway display terminal power control based on RS422 agreements according to claim 1, it is characterised in that
The power control system includes power input, power output end, switch, protection circuit module and power-supply controller of electric, described
Power-supply controller of electric one end is connected with power input, and the other end is connected by protection circuit module and switch with power output end.
4. the subway display terminal power control based on RS422 agreements according to claim 3, it is characterised in that
The power-supply controller of electric is the integrated chip for storing digital process.
5. the subway display terminal power control based on RS422 agreements according to claim 3, it is characterised in that
The protection circuit module is provided with burst current control circuit.
6. the subway display terminal power control based on RS422 agreements according to claim 3, it is characterised in that
The switch is electrical switch.
7. the subway display terminal power control based on RS422 agreements according to claim 1, it is characterised in that
The subway display terminal power supply interfacing conveyor includes scialyscope power interface, projection screen power interface and is connected with computer
Input equipment power interface, the scialyscope power interface, projection screen power interface and with input equipment power interface point
Not two-by-two against being arranged on power control box side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621168112.9U CN206117484U (en) | 2016-11-02 | 2016-11-02 | Subway display terminal power controlling means based on RS422 agreement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621168112.9U CN206117484U (en) | 2016-11-02 | 2016-11-02 | Subway display terminal power controlling means based on RS422 agreement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206117484U true CN206117484U (en) | 2017-04-19 |
Family
ID=58525011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621168112.9U Active CN206117484U (en) | 2016-11-02 | 2016-11-02 | Subway display terminal power controlling means based on RS422 agreement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206117484U (en) |
-
2016
- 2016-11-02 CN CN201621168112.9U patent/CN206117484U/en active Active
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