CN111276369B - Information separation control system of transparent display device of subway station - Google Patents
Information separation control system of transparent display device of subway station Download PDFInfo
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/001—Functional circuits, e.g. logic, sequencing, interlocking circuits
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F19/00—Advertising or display means not otherwise provided for
- G09F19/22—Advertising or display means on roads, walls or similar surfaces, e.g. illuminated
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/002—Monitoring or fail-safe circuits
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Abstract
The invention provides an information separation control system of a transparent display device of a subway station, which is applied in the subway station and comprises a subway station central control system, a display device control system, a relay circuit and one or more display devices; the relay circuit comprises a relay, and the relay comprises a coil, a common contact and a normally open contact; two ends of the coil are connected with a central control system and receive instantaneous voltage signals from the central control system; the common contact of the display device is grounded, and the normally open contact of the display device is connected with a display device control system; the display device control system is connected with the display device; the display device is arranged on the subway shielding door; the system is simple in structure, the display device control system and the subway station central control system are relatively independent, instantaneous connection is only generated during signal transmission, the problem that the central control system is damaged due to invasion of the display device control system is avoided, and safe transmission of signals is achieved.
Description
Technical Field
The invention relates to the field of electrical control, in particular to an information separation control system of a transparent display device of a subway station.
Background
Displays (displays) are also commonly referred to as monitors. The display is an I/O device belonging to a computer, namely an input/output device. The electronic document display tool is a display tool which displays a certain electronic document on a screen through a specific transmission device and reflects the electronic document to human eyes.
Most of the existing displays comprise a screen, a frame and a back shell, have no perspective effect when displaying, cannot see objects on the back of the screen, and cannot be applied to many scenes, for example, if the display screen is installed on the glass of a refrigerator to play advertisements, the display screen can block the sight of a customer, so that the customer cannot see the commodities in the refrigerator. Particularly, subways are developed nationwide at present, and because passengers need to conveniently see the conditions on a subway platform or a train when the train arrives at the station, the subway platform is transparent, various shielding objects cannot be arranged on the subway platform, and the subway station is an occasion with very large pedestrian volume, and the subway platform can be used for education, announcement, advertisement and other propaganda; with the development and production of the see-through display screen, the application field of the transparent display screen or the display device is more extensive.
The subway platform screen door is provided with the display device, and the display device can be used as media such as advertisements, public education and the like and can also be used for information transmission. At present, the subway is generally built in a two-line city, such as wide and deep north, Hangzhou and other areas, and the population density of the subway is also large; in such cities, people mostly adopt a subway trip mode; if the display screen is arranged on the shielding door of the subway station, information can be effectively transmitted; at present, if a subway station display screen is systematically controlled to switch playing contents and open and close the screen, a control system needs to be set to control the display screen; the subway stations in China are provided with a central control system for signal transmission and communication with trains; however, the central control system of the subway station has high-level safety, and an interface cannot be freely opened to be connected with an external system, so that the central control system of the subway station is possibly invaded; therefore, the external system and the subway central control system need to be independent and separated, and the problem that the central control system is damaged due to the fact that the external system is damaged can be solved.
Therefore, in order to solve the problems in the prior art, it is urgently needed to provide an information separation control technology for a transparent display device of a subway station, which is simple in control method, can make a display device control system and a subway station central control system relatively independent, and only generates instantaneous connection during signal transmission.
Disclosure of Invention
In order to solve the technical problems, the invention provides an information separation control system of a transparent display device of a subway station, which realizes signal transmission by establishing a display device control system which is mutually independent and separated from a central control system of the subway station and controlling the closing of a relay, so that the display device control system obtains the signals of the central control system of the subway station and is not continuously connected with the central control system, thereby realizing the safe transmission of the signals.
In order to achieve the purpose, the invention adopts the following technical scheme:
an information separation control system of a transparent display device of a subway station is applied in the subway station and is characterized by comprising a subway station central control system, a display device control system, a relay circuit and one or more display devices;
the relay circuit comprises a relay, and the relay comprises a coil, a common contact and a normally open contact; two ends of the coil are connected with a central control system and receive instantaneous voltage signals from the central control system; the common contact of the display device is grounded, and the normally open contact of the display device is connected with a display device control system;
the display device control system is connected with the display device; the display device is arranged on the subway shielding door;
when the subway shielding door is opened or closed, the central control system sends an instantaneous voltage signal to the relay, and after the relay receives the instantaneous voltage signal, a normally open contact of the relay is closed; and the relay circuit is switched on, so that the display device control system receives the instantaneous switching-on signal and controls the display device according to the instantaneous switching-on signal.
As above, the relay includes a first relay and a second relay;
the first relay and the second relay respectively comprise a coil, a common contact and a normally open contact; both ends of the coils of the first relay and the second relay are connected with the central control system and receive instantaneous voltage signals from the central control system; common contacts of the first relay and the second relay are grounded, and normally open contacts of the first relay and the second relay are connected with a display device control system;
the display device control system is connected with the display device; the display device is arranged on the subway shielding door;
when the subway shielding door is opened, the central control system sends an instantaneous voltage signal to the first relay, and after the first relay receives the instantaneous voltage signal, a normally open contact of the first relay is closed; the first relay is conducted so that the display device control system receives an instantaneous conduction signal and controls the display device according to the instantaneous conduction signal;
when the subway shield door is closed, the central control system sends an instantaneous voltage signal to the second relay, and after the second relay receives the instantaneous voltage signal, a normally open contact of the second relay is closed; and the second relay is switched on, so that the display device control system receives the instantaneous switching-on signal and controls the display device according to the instantaneous switching-on signal.
Specifically, through setting up the relay circuit, and the relay circuit receives subway central control system's instantaneous voltage signal, controls the closure of relay normally open contact, makes the circuit switch on to make display device control system receive an instantaneous signal that switches on, learn the notice of central control system with this, realize display device's control. The relay circuit is provided with a first relay and a second relay to realize the control and transmission of two paths of signals. When the subway shielding door is opened, the central control system can send an instantaneous voltage signal to the first relay, the display device control system connected with the first relay receives the instantaneous conduction signal, at the moment, the display device control system can perform corresponding control operation on the display device, for example, switching playing content or controlling the display device to be opened and closed, and specific control operation can be set according to actual requirements. When the subway shield door is closed, the central control system can send an instantaneous voltage signal to the first relay, the display device control system connected with the first relay receives the instantaneous conduction signal, and at the moment, the display device control system can perform corresponding control operation on the display device. When the shielding door is opened or closed by dividing into two independent paths, the display device is correspondingly controlled and operated.
Specifically, two relays are divided to realize the transmission of two signals.
Specifically, the information separation control system only sends an instantaneous voltage signal to turn on the relay circuit when the subway shielded door is opened or closed, so that the display device control system can know the opening and closing of the subway shielded door according to the instantaneous voltage signal, and the display device is controlled. The design of the system ensures that the central control system is not required to be connected with the display device control system through an open interface, certain information is transmitted through the conduction of the relay, the central control system is only connected with the display device control system instantly, the possibility that the central control system is stolen or damaged through invading the display device control system cannot occur, and the safety of the central control system of the subway is ensured.
Preferably, the display device control system switches the playing content of the display device according to the instant on signal.
Specifically, the display device control system can perform corresponding control operations on the display device according to actual application scenarios and requirements. For example, when a subway arrives at a station, many users get off and get on the subway at the moment when the screen door is opened, and at the moment, the display device control system can control the display device to play safe terms for getting on and off the subway, so that passengers are reminded of safety, and the passengers do not need to push the subway.
Preferably, the display device control system controls the display device to be turned on and off according to the instantaneous on signal.
Preferably, the first relay and the second relay are of the type comprising an ohm dragon relay G5V-1DC 12V.
Preferably, the voltage signal output by the central control system is a 12V voltage signal or a 24V voltage signal.
Specifically, in general, most of voltage signals output by a subway central control system are 12V or 24V.
Preferably, the display device is a transparent display device.
Specifically, the transparent display device has better visual playing effect, does not shield the sight in the shielding door, and has good impression effect.
Above, transparent display device installs on subway shield door, transparent display device has set gradually toughened glass, transparent display screen and transparent light guide plate and back transparent baffle from outside to inside, toughened glass, transparent display screen, transparent light guide plate and back transparent baffle are fixed through fixed frame.
Specifically, the display device is installed on the shield door, and the design of the structure enables the installation of the transparent display device to have a more stable structure.
Preferably, the display device control system further provides a power signal and a video signal for the display device on the screen door.
Specifically, the display device control system performs a series of control operations on the display device, and also provides a power signal, a video signal, and the like to the display device.
In some embodiments, the display device is mounted on the shielded door and comprises a liquid crystal screen and a front glass, wherein the liquid crystal screen is pasted on the back side surface of the front glass;
still include the fixed frame around the peripheral setting of display device, fixed frame is linear extruded section bar, its cross section characteristic including:
the display device comprises a supporting beam, a supporting frame and a display device, wherein the supporting beam extends along a direction vertical to a screen of the display device; the front glass is arranged in the screen clamping interval in a clamping manner and is clamped and fixed by the clamping beam and the shockproof beam;
the shielding door comprises a cap beam arranged at the upper end of a column beam, wherein the cap beam protrudes out of the rear side surface of the column beam to form a cap edge, and the cap edge is propped against the shielding door when the display device is installed; the lower end of the support beam is arranged on the front side surface of the cap beam, and the upper end of the support beam extends upwards to be higher than the shockproof beam;
the first light beam is vertically protruded on the front side surface of the support beam, is higher than the shockproof beam and is lower than the upper end of the support beam; a first background lamp is arranged on the first light beam and irradiates in the direction opposite to the beam supporting direction;
the second light beam is vertically protruded on the rear side surface of the support beam and is lower than the upper end of the support beam; a second background lamp is arranged on the second lamp beam, and a transparent backlight plate is arranged above the second background lamp; the backlight plate contains scattering particles with uniform density distribution, the edge side of the backlight plate is pressed on the light emitting surface of a second background lamp, and the second background lamp irradiates towards the inside of the backlight plate;
the backlight plate is clamped between the supporting beam and the pressing plate by the pressing plate, and the other surface of the pressing plate is propped against the shielding door when the display device is installed;
and a point breaking beam is arranged between the shockproof beam and the supporting beam, and the point breaking beam is connected with the shockproof beam and the supporting beam through a breakpoint structure.
Specifically, the display device is a transparent display device and is used for assembling the display device on specific occasions such as a subway shield door, and a fixing frame of the display device is a linear extruded section and has a linear type or an arc type; because designed reasonable frame structure, all made reasonable arrangement and design with leading glass, LCD screen, background light, board and the line position of walking, when manufacturing, only need assemble fast, really accomplished easy installation, low cost, batch production and popularization and application.
Preferably, one side of the shockproof beam, which faces the clamping beam, is provided with a concave step, and the concave step is higher than the clamping beam; the concave step is internally provided with a buffer pad which slightly protrudes out of the surface of the shockproof beam and is extruded by the front glass.
Preferably, the space enclosed by the resisting beam, the shockproof beam, the column beam, the branch beam and the point-breaking beam is a wire groove interval, the space comprises a first wire groove interval between the shockproof beam and the column beam and a second wire groove interval between the shockproof beam and the branch beam, and the first wire groove interval and the second wire groove interval are communicated with each other.
Preferably, the wire clamping slot is positioned at the lower side of the screw slot.
Preferably, the tail end of the second lamp beam, the tail end of the screw slot and the tail end of the wire clamping slot do not extend beyond the cap edge.
Preferably, a space between the upper end surface of the cap beam and the wire clamping groove is formed as a third wire groove.
Preferably, the section of the fixing frame is aluminum or an alloy thereof.
Preferably, the linear extrusion comprises a linear extrusion and an arc extrusion.
Preferably, the fixed frame of the linear extruded section is in 45-degree angle beveling butt joint between two adjacent edges of the display device.
Preferably, the fixed frame of the linear extruded section is butted between two adjacent sides of the display device by adopting the fixed frame of the arc-shaped extruded section.
In some embodiments, the display device is mounted on a shielded door, and the display device sequentially comprises a front glass, a liquid crystal screen, a transparent backlight plate and an electric control dimming film from front to back; the liquid crystal screen is adhered to the rear side face of the front glass;
the display device also comprises a fixed frame arranged around the periphery of the display device, wherein the fixed frame is a linear extruded section; the front glass and the backlight plate are fixed through a fixing frame, and the electric control dimming film is arranged between the backlight plate and the shielding door;
the fixed frame is also provided with a first background lamp which is positioned between the backlight plate and the liquid crystal screen and irradiates towards the middle of the screen; the fixed frame is also provided with a second background lamp which is positioned at the edge of the side surface of the backlight plate, the light of the second background lamp is emitted into the backlight plate from the side surface of the backlight plate, and the backlight plate contains scattering particles with uniform density distribution;
the electric control light adjusting film is provided with a layer and is edited into required indication information; when the electric control dimming film is electrified, the electric control dimming film becomes opaque and emits light, and after the electricity is removed, the electric control dimming film becomes transparent.
Specifically, above-mentioned display device is used for the shield door of subway platform, supplies the platform and train to go up passenger's two-way watching, and when the train got into the station, the automatically controlled membrane of adjusting luminance was gone up and is lighted, gives preset's indicating information, for example to station name information etc. the passenger has improved the experience of taking a bus on the one hand, and on the other hand has optimized the impression of watching from the transparent display device back, and when the train left the station back, the automatically controlled membrane of adjusting luminance got the electricity and gets back to transparent state again, does not influence positive vision. In addition, the fixed frame is a linear extruded section and has a linear or arc shape; because designed reasonable frame structure, all made reasonable arrangement and design with leading glass, LCD screen, background light, board and the line position of walking, when manufacturing, only need assemble fast, really accomplished easy installation, low cost, batch production and popularization and application.
In some embodiments, the display device is installed on the inner side of the shield door, the front side faces the interior of the train, and the display device sequentially comprises front glass, a liquid crystal screen, a transparent backlight plate and an electric control dimming film from front to back; the liquid crystal screen is adhered to the rear side face of the front glass;
the display device also comprises a fixed frame arranged around the periphery of the display device, wherein the fixed frame is a linear extruded section; the front glass and the backlight plate are fixed through a fixing frame, and the electric control dimming film is arranged between the backlight plate and the shielding door;
the fixed frame is also provided with a first background lamp which is positioned between the backlight plate and the liquid crystal screen and irradiates towards the middle of the screen; the fixed frame is also provided with a second background lamp which is positioned at the edge of the side surface of the backlight plate, the light of the second background lamp is emitted into the backlight plate from the side surface of the backlight plate, and the backlight plate contains scattering particles with uniform density distribution;
the electric control light adjusting film has multiple layers and is clipped into required indication information; when the electric control dimming film is electrified, the electric control dimming film becomes opaque and emits light, and after the electricity is removed, the electric control dimming film becomes transparent.
Specifically, the display device is used on a shield door for passengers at a platform and a train to watch in two directions, when the train enters the station, the electric control dimming film is lightened to give preset indication information, such as terminal station information of the train and the like, and the passengers waiting for the train are informed in time; in addition, aiming at the condition that the running information of the train is dynamically changed, a plurality of layers of electric control dimming films are designed, and aiming at different running information, such as terminal station information and the like; the passenger has improved the experience of waiting on the one hand, and on the other hand has optimized the impression of watching from the transparent display back, and when the train leaves the station after, transparent state is got back again to the automatically controlled membrane of adjusting luminance, does not influence the front vision.
In some embodiments, the display device is mounted on the shielded door, and the display device sequentially comprises a front glass, a liquid crystal screen, a transparent backlight plate and an LED transparent module from front to back; the liquid crystal screen is adhered to the rear side face of the front glass;
the display device also comprises a fixed frame arranged around the periphery of the display device, wherein the fixed frame is a linear extruded section; the front glass and the backlight plate are fixed through a fixing frame, and the LED transparent module is arranged between the backlight plate and the shielding door;
the fixed frame is also provided with a first background lamp which is positioned between the backlight plate and the liquid crystal screen and irradiates towards the middle of the screen; the fixed frame is also provided with a second background lamp which is positioned at the edge of the side surface of the backlight plate, the light of the second background lamp is emitted into the backlight plate from the side surface of the backlight plate, and the backlight plate contains scattering particles with uniform density distribution;
the LED transparent module is composed of a plurality of LED base strips in an equidistant parallel arrangement mode, LED light-emitting elements in an equidistant arrangement mode are arranged on each LED base strip, the width of each LED base strip is 1.5-4 mm, the distance between the LED base strips is 3-23 mm, and the distance between the LED light-emitting elements is 0.75-10 mm.
Preferably, the LED base strips are horizontally arranged, vertically arranged or obliquely arranged.
Preferably, the substrate of the LED base strip is an aluminum substrate, a copper substrate, an acrylic substrate or a glass substrate.
Preferably, the LED light emitting element is a single color light emitting element or a multicolor light emitting element.
Specifically, above-mentioned display device locates on the shield door of subway platform, sets up a LED transparent module behind one's back at transparent display device, and LED transparent module shows platform or driving information, except can effectively improving the experience of taking a bus, waiting, can also effectively reduce display device's the influence of being shaded to the glare that is dorsad the passenger.
The invention has the beneficial effects that:
the invention provides an information separation control system of a transparent display device of a subway station, which is applied in the subway station, and the information separation control system is mutually independent and separated from a central control system of the subway station, and the two systems realize signal transmission by controlling the closing of a relay, so that the display device control system obtains the signal of the central control system of the subway and is not continuously connected with the central control system, thereby avoiding the problem that the central control system is damaged due to the invasion of the display device control system. Meanwhile, the normal operation of the train in the subway cannot be influenced due to any fault of the display device control system, and the information separation control is realized. The technical scheme is simple and easy to operate, can effectively solve the problems in the prior art, provides a safe and reliable signal transmission mode, and ensures the safety of a subway central control system. The invention provides a plurality of structures of the display device, and the display device can be installed according to the structure of the display device selected by a user.
Drawings
Fig. 1 is a schematic circuit structure diagram of an information separation control system provided in the present invention;
fig. 2 is a schematic diagram of a relay circuit structure of the information separation control system provided by the invention.
Fig. 3 is a schematic diagram of a splicing of a fixing frame of a display device according to the present invention;
fig. 4 is a cross-sectional view of a fixing frame of a display device provided in the present invention;
fig. 5 is a schematic view illustrating an installation of a fixing frame and a backlight plate of the display device according to the present invention;
fig. 6 is a schematic structural diagram of a display device provided in the present invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
Example 1
One embodiment of the present invention, as shown in fig. 1 to 2, provides an information separation control system for a transparent display device of a subway station, which is applied in the subway station, and is characterized in that the information separation control system includes a subway station central control system, a display device control system, a relay circuit, and a plurality of display devices;
the relay circuit comprises a first relay RL1 and a second relay RL 2;
the first relay RL1 and the second relay RL2 both comprise coils, common contacts and normally open contacts; both ends (pins 1 and 2 shown in fig. 2) of coils of the first relay RL1 and the second relay RL2 are connected with the central control system, and receive instantaneous voltage signals from the central control system; the common contacts (pin 4 shown in fig. 2) of the first relay RL1 and the second relay RL2 are both grounded, and the normally open contacts (pin 3 shown in fig. 2) of the first relay RL1 and the second relay RL2 are both connected with the display device control system;
the display device control system is connected with the display device; the display device is arranged on the subway shielding door;
when the subway shielding door is opened, the central control system sends an instantaneous voltage signal to the first relay RL1, and after the first relay RL1 receives the instantaneous voltage signal, a normally open contact of the first relay RL1 is closed; the first relay RL1 is conducted, so that the display device control system receives an instantaneous conduction signal and controls the display device according to the instantaneous conduction signal;
when the subway shield door is closed, the central control system sends an instantaneous voltage signal to the second relay RL2, and after the second relay RL2 receives the instantaneous voltage signal, a normally open contact of the second relay RL2 is closed; the second relay RL2 is turned on, so that the display device control system receives the instantaneous turn-on signal, and the display device control system controls the display device according to the instantaneous turn-on signal.
Specifically, through setting up the relay circuit, and the relay circuit receives subway central control system's instantaneous voltage signal, controls the closure of relay normally open contact, makes the circuit switch on to make display device control system receive an instantaneous signal that switches on, learn the notice of central control system with this, realize display device's control. The relay circuit is provided with a first relay RL1 and a second relay RL2 to realize the control and transmission of two paths of signals. When the subway shielding door is opened, the central control system sends an instantaneous voltage signal to the first relay RL1, the display device control system connected with the first relay RL1 receives the instantaneous conducting signal, at the moment, the display device control system can perform corresponding control operation on the display device, for example, switching playing content or controlling the opening and closing of the display device, and the specific control operation can be set according to actual requirements. When the subway shield door is closed, the central control system sends an instantaneous voltage signal to the first relay RL1, and the display device control system connected with the first relay RL1 receives the instantaneous conduction signal, so that the display device control system can perform corresponding control operation on the display device. When the shielding door is opened or closed by dividing into two independent paths, the display device is correspondingly controlled and operated.
Specifically, the information separation control system only sends an instantaneous voltage signal to turn on the relay circuit when the subway shielded door is opened or closed, so that the display device control system can know the opening and closing of the subway shielded door according to the instantaneous voltage signal, and the display device is controlled. The design of the system ensures that the central control system is not required to be connected with the display device control system through an open interface, certain information is transmitted through the conduction of the relay, the central control system is only connected with the display device control system instantly, the possibility that the central control system is stolen or damaged through invading the display device control system cannot occur, and the safety of the central control system of the subway is ensured.
In this embodiment, the display device control system switches the playing content of the display device according to the instant on signal. The display device control system can perform corresponding control operation on the display device according to actual application scenes and requirements. In this embodiment, when the subway arrives at a station, a lot of users get off and get on the subway at the moment when the shielding door is opened, and at the moment, the display device control system can control the display device to play safe terms for getting on and off the subway, so that passengers are reminded of paying attention to safety, and the passengers do not need to push and the like.
In the embodiment, the first relay RL1 and the second relay RL2 are in the model of an ohm dragon relay G5V-1DC 12V; the voltage signal output by the central control system is a 12V voltage signal; the display device adopts a transparent display device.
Example 2
As shown in fig. 3 to 6, the main technical solution of this embodiment is substantially the same as that of embodiment 1, and the features that are not explained in this embodiment are explained in embodiment 1, and are not described again here. This example differs from example 1 in that:
the display device is arranged on the subway shielding door, and the fixed frame of the display device is a linear extruded section and has a linear type or an arc type; the fixed frame forms four frames of the display device, and the 45-degree beveling mode can be adopted for the linear extruded section bar fixed frame at the corners of the frames, so that the two frames are spliced into 90-degree angles at the end parts to serve as the right-angle corners of the display device.
As shown in fig. 3, a linear type extruded material 1a may be used at the frame, and an arc type extruded material 1b may be used at the corner, so as to form an arc transition at the corner of the display device. In addition, 45-degree oblique splicing can be carried out on the arc line type extruded section.
As shown in fig. 4, a cross-sectional view of the fixing frame of the present embodiment is shown, the section of which is perpendicular to the linear extrusion direction.
The profile of the fixing frame is preferably aluminium or an alloy thereof.
The fixing frame of this embodiment includes a supporting beam 10 extending in a direction perpendicular to the screen of the display device, and a clamping beam 20, a shockproof beam 30 and a column beam 40 are sequentially disposed on one side of the supporting beam 10 facing the screen along the front-rear direction of the screen, and extend in a direction perpendicular to the supporting beam and form a space therebetween.
A screen clamping interval 23 is formed between the clamping beam 20 and the shockproof beam 30 and is used for installing the front glass 2 of the display device; a first wire-groove space 132 is formed between the anti-vibration beam 30 and the pillar beam 40 for routing, placing the associated electronic control module and its cables, desiccant, etc.
The front end face 21 of the clamp beam 20 and the outer end face of the abutment beam 10 have a transition fillet 12 therebetween.
The height of the convex of the anti-vibration beam 30 is higher than that of the clamping beam 20, a concave step 32 is arranged on one side of the anti-vibration beam 30 facing the clamping beam 20, the concave step 32 is higher than that of the clamping beam 20, a concave cavity 31 formed by the concave step 32 is used for placing a buffer pad, and the buffer pad slightly protrudes from the surface of the anti-vibration beam 30 and is extruded by the front glass 2.
The column beam 40 is lower than the shockproof beam 30, the upper end of the column beam 40 is provided with a cap beam 42, the cap beam 42 protrudes backwards from the rear side surface 41 of the column beam 40 to form a cap edge, and a half of the open space 14 is formed between the lower part of the cap edge and the rear side surface 41 of the column beam.
The upper ends of the front side surfaces of the cap beam and the column beam 40 are provided with a supporting beam 50, and the supporting beam 50 extends upwards along the direction parallel to the screen and is far away from the supporting beam 10; the upper end 55 of the support beam 50 is higher than the upper end 33 of the anti-vibration beam 30, a second line slot interval 131 is formed between the support beam 50 and the anti-vibration beam 30, the second line slot interval 131 is communicated with the first line slot interval 132 to form a total line slot interval 13, and the interval between the support beam 50 and the anti-vibration beam 30 is smaller than the interval between the column beam 40 and the anti-vibration beam 30.
The upper end 33 of the anti-vibration beam 30 is provided with a point breaking beam 35, the other end of the point breaking beam 35 is connected with one side of the support beam 50 facing the front of the anti-vibration beam, the point breaking beam 35 is connected with the front side faces of the anti-vibration beam 30 and the support beam 50 through a breakpoint structure 351, and the point breaking beam 35 can be easily broken off.
The front side of the supporting beam 50 is higher than the point breaking beam 35 and lower than the top end of the supporting beam, and a first light beam 51 is arranged, and the first light beam 51 is vertically protruded from the front side of the supporting beam 50.
As also shown in fig. 5, the upper end face of the first light beam 51 away from the abutment beam 10 is used for mounting a first backlight 70, and the first backlight 70 is illuminated in a direction away from the abutment beam 10.
The back side of the support beam 50 opposite to the first light beam 51 is provided with a second light beam 52, the second light beam 52 is lower than the top end of the support beam and higher than the point breaking beam 35, and the second light beam is vertically protruded from the back side of the support beam 50.
The upper end face of the second light beam 52 away from the abutment beam 10 is used for mounting a second backlight 80, and the second backlight 80 is illuminated in a direction away from the abutment beam 10.
The first backlight 70 and the second backlight 80 are separated from the upper end portion of the pillar 50, the backlight 4 is provided above the second backlight 80, the edge of the backlight 4 is pressed against the light emitting surface of the second backlight 80, and the light of the second backlight 80 is incident into the backlight 4 from the edge of the backlight 4.
The lower side of the second light beam 52 is sequentially provided with a screw slot 53 and a wire clamping slot 56, a pressing plate 60 can be used, the pressing plate 60 is provided with a screw hole 65, and a screw penetrates through the screw hole 65 to be fastened with the screw slot 53, so that the pressing plate 60 is fastened and installed on the support beam 50. The backlight plate can be pressed and fixed between the upper end of the pressing plate 60 and the upper end 55 of the supporting beam.
The ends of the second beam 52, the screw slot 53 and the wire-locking slot 56 do not extend beyond the brim.
The space between the upper end face 45 of the cap beam 42 to the wire catching groove 56 is formed as a third wire groove 54.
The fixing frame for the display device has the advantages of compact structure, reasonable distribution of functional structures, low cost, easiness in batch extrusion molding and manufacturing and easiness in scale application.
As shown in fig. 6, the display device of this embodiment sequentially includes a front glass 2, a liquid crystal panel 3, and a backlight panel 4 from front to back, the first backlight 70 is located between the liquid crystal panel 3 and the backlight panel 4, and the brim and the pressing plate are supported on a screen door 5 of a subway.
The display device of the embodiment can be adhered to the shielding door 5 through strong glue, and can be cooperatively fixed in a mode of being matched with a hook, a support column, welding and the like.
The backlight plate is a transparent acrylic plate, scattering particles are arranged in the backlight plate, when the second background light is not on, the backlight plate is a transparent plate, and if the liquid crystal screen is powered on, opposite scenes can be seen through the display device from front to back respectively.
When the second background light is on, all light rays of the second background light are emitted into the backlight plate and are totally reflected in the inner surface of the backlight plate, and at the moment, the light rays in the backlight plate are widely scattered due to the action of scattering particles in the backlight plate, and the backlight plate presents an atomized luminous state and becomes a semitransparent state; if the liquid crystal screen is powered on to work at the moment, the transparency of the display device is reduced, but the played picture is clearer and brighter.
In addition to this embodiment, a third backlight may be provided between the backlight and the screen door 5.
The display device of this embodiment owing to designed reasonable frame structure, all made reasonable arrangement and design with leading glass, LCD screen, background light, board in a poor light and line position of walking, when manufacturing, only need assemble fast, really accomplished easy installation, low cost, batch production and popularization and application.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, which fall within the scope and spirit of the above description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (9)
1. An information separation control system of a transparent display device of a subway station is applied in the subway station and is characterized by comprising a subway station central control system, a display device control system, a relay circuit and one or more display devices;
the relay circuit comprises a relay, and the relay comprises a coil, a common contact and a normally open contact; two ends of the coil are connected with a central control system and receive instantaneous voltage signals from the central control system; the common contact of the display device is grounded, and the normally open contact of the display device is connected with a display device control system;
the display device control system is connected with the display device; the display device is arranged on the subway shielding door;
when the subway shielding door is opened or closed, the central control system sends an instantaneous voltage signal to the relay, and after the relay receives the instantaneous voltage signal, a normally open contact of the relay is closed; the relay circuit is conducted, so that the display device control system receives the instantaneous conduction signal and controls the display device according to the instantaneous conduction signal;
the display device is arranged on the shielding door and comprises a liquid crystal screen and front glass, and the liquid crystal screen is adhered to the rear side face of the front glass;
still include the fixed frame around the peripheral setting of display device, fixed frame is linear extruded section bar, its cross section characteristic including:
the display device comprises a supporting beam, a supporting frame and a display device, wherein the supporting beam extends along a direction vertical to a screen of the display device; the front glass is arranged in the screen clamping interval in a clamping manner and is clamped and fixed by the clamping beam and the shockproof beam;
the shielding door comprises a cap beam arranged at the upper end of a column beam, wherein the cap beam protrudes out of the rear side surface of the column beam to form a cap edge, and the cap edge is propped against the shielding door when the display device is installed; the lower end of the support beam is arranged on the front side surface of the cap beam, and the upper end of the support beam extends upwards to be higher than the shockproof beam;
the first light beam is vertically protruded on the front side surface of the support beam, is higher than the shockproof beam and is lower than the upper end of the support beam; a first background lamp is arranged on the first light beam and irradiates in the direction opposite to the beam supporting direction;
the second light beam is vertically protruded on the rear side surface of the support beam and is lower than the upper end of the support beam; a second background lamp is arranged on the second lamp beam, and a transparent backlight plate is arranged above the second background lamp; the backlight plate contains scattering particles with uniform density distribution, the edge side of the backlight plate is pressed on the light emitting surface of a second background lamp, and the second background lamp irradiates towards the inside of the backlight plate;
the backlight plate is clamped between the supporting beam and the pressing plate by the pressing plate, and the other surface of the pressing plate is propped against the shielding door when the display device is installed;
and a point breaking beam is arranged between the shockproof beam and the supporting beam, and the point breaking beam is connected with the shockproof beam and the supporting beam through a breakpoint structure.
2. The message separation control system as claimed in claim 1, wherein the relay includes a first relay and a second relay;
the first relay and the second relay respectively comprise a coil, a common contact and a normally open contact; both ends of the coils of the first relay and the second relay are connected with the central control system and receive instantaneous voltage signals from the central control system; common contacts of the first relay and the second relay are grounded, and normally open contacts of the first relay and the second relay are connected with a display device control system;
the display device control system is connected with the display device; the display device is arranged on the subway shielding door;
when the subway shielding door is opened, the central control system sends an instantaneous voltage signal to the first relay, and after the first relay receives the instantaneous voltage signal, a normally open contact of the first relay is closed; the first relay is conducted so that the display device control system receives an instantaneous conduction signal and controls the display device according to the instantaneous conduction signal;
when the subway shield door is closed, the central control system sends an instantaneous voltage signal to the second relay, and after the second relay receives the instantaneous voltage signal, a normally open contact of the second relay is closed; and the second relay is switched on, so that the display device control system receives the instantaneous switching-on signal and controls the display device according to the instantaneous switching-on signal.
3. The system of claim 1, wherein the display device control system switches the content of the display device according to the instantaneous on signal.
4. The system of claim 1, wherein the display control system controls the display to open and close according to the instantaneous on signal.
5. The message separation control system as claimed in claim 2, wherein the model of the first relay and the second relay comprises an ohm dragon relay G5V-1DC 12V.
6. The information separation control system according to claim 1, wherein the voltage signal output by the central control system is a 12V voltage signal or a 24V voltage signal.
7. The information separation control system according to claim 1, wherein the display device is a transparent display device;
transparent display device installs on subway shield door, transparent display device has set gradually toughened glass, transparent display screen and transparent light guide plate and back transparent baffle from outside to inside, toughened glass, transparent display screen, transparent light guide plate and back transparent baffle are fixed through fixed frame.
8. The information separation control system according to claim 1, wherein the display device is mounted on the screen door, and the display device comprises a front glass, a liquid crystal screen, a transparent backlight plate and an electrically controlled dimming film in sequence from front to back; the liquid crystal screen is adhered to the rear side face of the front glass;
the display device also comprises a fixed frame arranged around the periphery of the display device, wherein the fixed frame is a linear extruded section; the front glass and the backlight plate are fixed through a fixing frame, and the electric control dimming film is arranged between the backlight plate and the shielding door;
the fixed frame is also provided with a first background lamp which is positioned between the backlight plate and the liquid crystal screen and irradiates towards the middle of the screen; the fixed frame is also provided with a second background lamp which is positioned at the edge of the side surface of the backlight plate, the light of the second background lamp is emitted into the backlight plate from the side surface of the backlight plate, and the backlight plate contains scattering particles with uniform density distribution;
the electric control light adjusting film is provided with a layer and is edited into required indication information; when the electric control dimming film is electrified, the electric control dimming film becomes opaque and emits light, and after the electricity is removed, the electric control dimming film becomes transparent.
9. The information separation control system according to claim 1, wherein the display device is installed on the inner side of the screen door, the front side faces the interior of the train, and the display device sequentially comprises front glass, a liquid crystal screen, a transparent backlight plate and an electric control dimming film from front to back; the liquid crystal screen is adhered to the rear side face of the front glass;
the display device also comprises a fixed frame arranged around the periphery of the display device, wherein the fixed frame is a linear extruded section; the front glass and the backlight plate are fixed through a fixing frame, and the electric control dimming film is arranged between the backlight plate and the shielding door;
the fixed frame is also provided with a first background lamp which is positioned between the backlight plate and the liquid crystal screen and irradiates towards the middle of the screen; the fixed frame is also provided with a second background lamp which is positioned at the edge of the side surface of the backlight plate, the light of the second background lamp is emitted into the backlight plate from the side surface of the backlight plate, and the backlight plate contains scattering particles with uniform density distribution;
the electric control light adjusting film has multiple layers and is clipped into required indication information; when the electric control dimming film is electrified, the electric control dimming film becomes opaque and emits light, and after the electricity is removed, the electric control dimming film becomes transparent.
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| CN202010029564 | 2020-01-10 | ||
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| JP4483569B2 (en) * | 2004-12-22 | 2010-06-16 | エプソンイメージングデバイス株式会社 | Liquid crystal display |
| CN203832399U (en) * | 2013-11-19 | 2014-09-17 | 比亚迪股份有限公司 | Control device based on automobile side window and automobile comprising control device |
| CN105047108B (en) * | 2015-08-27 | 2018-04-06 | 姜旭东 | One kind is used for projection imaging device on subway glass shield door |
| CN105799739B (en) * | 2015-12-01 | 2017-07-11 | 重庆川仪自动化股份有限公司 | A kind of interface module |
| CN106205407B (en) * | 2016-09-19 | 2019-06-14 | 姜旭东 | A kind of display system for subway shield door |
| CN207718772U (en) * | 2018-01-02 | 2018-08-10 | 珠海兴业新材料科技有限公司 | Advertisement delivery system suitable for subway electronic-control dimming glass shield door |
| CN109887457A (en) * | 2019-02-28 | 2019-06-14 | 佛山星乔电子科技有限公司 | A kind of whistle control system and its control method of the semi-transparent display device of subway |
| CN110164320A (en) * | 2019-04-30 | 2019-08-23 | 佛山星乔电子科技有限公司 | A kind of transparence display system of support type display module and its application based on slim OLED |
| CN110222619A (en) * | 2019-05-29 | 2019-09-10 | 佛山星乔电子科技有限公司 | A kind of train stream of people leading method and its system based on subway shield door display device |
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