CN114582232B - Method, device and equipment system for embedding bus electronic stop board into standby curtain based on energy storage conversion - Google Patents
Method, device and equipment system for embedding bus electronic stop board into standby curtain based on energy storage conversion Download PDFInfo
- Publication number
- CN114582232B CN114582232B CN202210196745.4A CN202210196745A CN114582232B CN 114582232 B CN114582232 B CN 114582232B CN 202210196745 A CN202210196745 A CN 202210196745A CN 114582232 B CN114582232 B CN 114582232B
- Authority
- CN
- China
- Prior art keywords
- curtain
- standby
- energy storage
- electronic
- screen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004146 energy storage Methods 0.000 title claims abstract description 137
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims description 131
- 230000005484 gravity Effects 0.000 claims description 44
- 239000003550 marker Substances 0.000 claims description 29
- 230000017525 heat dissipation Effects 0.000 claims description 27
- 238000009423 ventilation Methods 0.000 claims description 20
- 230000009471 action Effects 0.000 claims description 18
- 230000002457 bidirectional effect Effects 0.000 claims description 18
- 230000003068 static effect Effects 0.000 claims description 17
- 238000013459 approach Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000006870 function Effects 0.000 claims description 7
- 230000001960 triggered effect Effects 0.000 claims description 7
- 238000005381 potential energy Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 16
- 238000005516 engineering process Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000001652 electrophoretic deposition Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 229920001345 ε-poly-D-lysine Polymers 0.000 description 1
Classifications
-
- 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
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
-
- 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
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20954—Modifications to facilitate cooling, ventilating, or heating for display panels
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Abstract
The invention provides a method, a device and a device system for embedding a standby curtain into a bus electronic stop board based on energy storage conversion. According to the method, the automatic switching between the electronic screen and the standby curtain can be completed without additionally increasing the display area, so that the problem of common black screen of the traditional bus electronic stop board is solved, and the usability of the bus electronic stop board is improved.
Description
Technical Field
The invention relates to the field of bus electronic stop boards, in particular to the field of a method, a device and a device system for embedding a bus electronic stop board into a standby curtain based on energy storage conversion.
Background
With the development of economic technology and innovation and improvement of municipal transportation infrastructure, the application of the public transportation electronic stop board is increasingly wide. At present, electronic bus stop boards are mostly manufactured by adopting electronic display technologies such as LEDs (light emitting diode display), LCDs (liquid crystal display), EPDs (electrophoretic display technology) and the like, and related equipment is installed in a bus stop hall for displaying the line and real-time shift information of buses. Because bus stop pavilion has the characteristics of outdoor installation and complex operation environment, no matter which technology is adopted, the conditions such as power failure, network failure, equipment failure and the like can cause the electronic screen of the bus electronic stop board to stop working, black screen and interrupt information, and the public transportation line information release is required to have high reliability, the electronic screen equipment and the standby curtain are adopted to splice or separately coexist when the bus stop board is applied at present, the electronic screen displays dynamic train information such as vehicle positions and the like which need real-time networking, the standby curtain displays fixed information such as original line passing stations and the like, or the electronic screen displays all information including the fixed information such as line passing stations and the like, and the standby curtain is still additionally arranged for displaying the fixed information such as line passing stations and the like so as to be used when the electronic screen fails.
The solution of static splicing, discrete and coexistence of the electronic screen device and the standby curtain has the following problems:
firstly, when the electronic screen equipment works normally, a piece of visible standby curtain is placed at the same time to display repeated information, so that space is wasted, and visual focuses of users are scattered and difficult to fit;
secondly, when the electronic screen equipment cannot work normally, the electronic screen is in a black screen exposure state, and the part of space is also in a waste state, so that the overall appearance effect of the bus stop is affected, and users are confused and bad experience is brought;
thirdly, because the display position of the bus stop board generally has the value of advertisement resources or other functions, the display of redundant information in another space or the exposure of a black screen is a resource waste.
Disclosure of Invention
In view of the above, the present invention is directed to a method, an apparatus and a device system for embedding an electronic bus stop board into a standby curtain based on energy storage conversion, so as to solve the above problems.
The technical scheme of the invention is realized as follows:
the invention provides a method for embedding a standby curtain into a bus electronic stop board based on energy storage conversion, which is applied to the bus electronic stop board, and comprises a box shell, an electronic screen display module, a standby curtain control module and an energy storage module, wherein a clearance channel for ventilation and heat dissipation is arranged between the box shell and the front surface of the electronic screen display module, the standby curtain refers to a foldable plane display medium capable of replacing release information when the electronic screen display module cannot work normally, the standby curtain control module is used for controlling the expansion and folding actions of the curtain, the method comprises a driving module, a triggering locking module and a travel control module, the energy storage module is used for storing energy when the electronic screen display module can work normally, the standby curtain is released when the electronic screen display module cannot work normally, the energy storage form comprises standby battery energy storage, gravity energy storage and energy storage, and the method for embedding the bus stop board based on the energy storage conversion comprises the following steps:
The method comprises the steps that S1, one end of a standby curtain is connected with a driving module and is hidden on one side of an electronic display module, the other end of the standby curtain can move back and forth in a gap channel between a box shell and the front side of an electronic screen, the standby curtain is driven to be unfolded and folded in the front gap of the electronic screen, the front side of the electronic display screen which stops running is covered when unfolded, information is released by replacing the electronic display screen, the standby curtain is hidden on one side of the electronic display screen when folded, and the light transmission and ventilation channels of the display screen are avoided, so that the normal display and ventilation and heat dissipation functions of the electronic display screen are not affected;
s2, connecting a driving module and a triggering locking module of the standby curtain with a power circuit of the electronic screen display module, when the power circuit of the electronic screen display module works normally, triggering the driving module to store the standby curtain by adopting the power of the electronic screen display module, enabling the energy storage module to store energy by adopting a standby battery, gravity or elasticity, and when the power circuit of the electronic screen display module is disconnected, triggering the standby curtain to drive to be unfolded by adopting the standby battery, gravity or elasticity energy storage;
s3, controlling the expansion and folding movable stroke of the standby curtain by the stroke control module, wherein the stroke control module comprises a stroke marker arranged at the movable end of the standby curtain and a touch or proximity sensing mechanism arranged at a designated position on the box body, and when the standby curtain is expanded in a form of energy storage of a standby battery, the stroke control module comprises an expansion stroke sensing mechanism and a folding Cheng Ganying mechanism, and the expansion stroke sensing mechanism is arranged at the position of the box body: when the standby curtain is unfolded and the picture position is exactly consistent with the display space of the electronic screen, the travel marker on the curtain corresponds to a designated position on the box body, and when the curtain is unfolded, the mechanism triggers and cuts off the unfolding power supply of the curtain driving module so as to stop unfolding and be in a static state as long as the travel marker on the curtain touches or approaches the mechanism; the folding stroke sensing mechanism is arranged at the following part: when the standby curtain is folded and the picture position completely avoids the display area of the electronic screen and the ventilation and heat dissipation channel, the travel marker on the curtain corresponds to a designated position on the box body, and when the curtain moves in a folding manner, the mechanism is triggered to cut off the folding power supply of the curtain driving module so as to stop folding and be in a static state as long as the travel marker on the curtain touches or approaches the mechanism; when the standby curtain is unfolded in a gravity or elastic energy storage mode, the stroke control module only needs to be provided with a furling Cheng Ganying mechanism;
Further, in the step S3, when the standby curtain is unfolded in the form of energy storage of the standby battery, the standby curtain driving module is powered by the screen power supply and the standby battery together, when the electronic screen display module works normally, the standby curtain is driven to be folded by the screen power supply, and when the electronic screen display module cannot work normally, the standby curtain is driven to be unfolded by the standby battery; the standby battery is charged through the screen power supply when the screen power supply is available;
further, in the step S3, when the standby curtain is unfolded in a form of gravity or elastic energy storage, the standby curtain driving module is independently powered by the screen power supply, when the electronic screen display module works normally, the standby curtain driving module gathers the standby curtain by the screen power supply, then (1) when the gathered standby curtain is hidden on the upper side of the electronic display screen, the standby curtain is upwards pulled up to form gravity energy storage and lock the gravity energy storage by the screen power supply driving electromagnetic lock when the gathered standby curtain is gathered, or (2) no matter the gathered standby curtain is hidden on any side of the electronic display screen, the standby curtain driving module can be provided with an elastic energy storage device, when the electronic screen display module works normally, the elastic energy storage device is pulled to generate elastic energy storage and lock the standby curtain by the screen power supply driving electromagnetic lock, and when the electronic screen display module cannot work normally, the electromagnetic lock power supply is simultaneously released, and the standby curtain driving module uses the gravity energy storage or the elastic energy storage to unfold the standby curtain;
According to the method, based on energy storage conversion, the standby curtain is embedded in the bus electronic stop board, so that only one picture faces a customer at the same time, no black screen is exposed, no space is wasted, and the problems existing in the existing bus electronic stop board when the electronic screen and the standby curtain are statically spliced, separated and displayed simultaneously are solved.
The invention provides a device for embedding a standby curtain into a bus electronic stop board based on energy storage conversion, which is applied to the bus electronic stop board, the bus electronic stop board comprises a box shell, an electronic screen display module, the standby curtain, a standby curtain control module and an energy storage module, a clearance channel for ventilation and heat dissipation is arranged between the box shell and the front surface of the electronic screen display module, the standby curtain refers to a foldable plane display medium capable of replacing release information when the electronic screen display module cannot work normally, the standby curtain control module is used for controlling expansion and folding of the curtain, the device comprises a driving module, a triggering locking module and a travel control module, the energy storage module is used for storing energy when the electronic screen display module can work normally, the standby curtain is released when the electronic screen display module cannot work normally, the energy storage form comprises standby battery energy storage, gravity energy storage and elastic energy storage, and the device for embedding the bus electronic stop board into the standby curtain based on the energy storage conversion comprises:
The electronic screen display unit is placed in a box shell of the public transport electronic stop board, the front surface of the box shell is a display area light-transmitting layer, and a ventilation and heat dissipation channel is arranged between the display area light-transmitting layer and the front surface of the electronic display screen;
the standby curtain display unit is used for replacing release information when the electronic screen display unit cannot normally display, the standby curtain display unit comprises a standby curtain, a control mechanism and an energy storage mechanism of the standby curtain, the control mechanism of the standby curtain comprises a driving mechanism, a trigger locking mechanism and a travel sensing mechanism, one end of the standby curtain is connected with the driving mechanism of the standby curtain, a curtain balance rod and a travel marker are arranged at the other end of the standby curtain, the standby curtain can move back and forth in a front ventilation and heat dissipation channel of the electronic display screen, the standby curtain is unfolded and folded in the front ventilation and heat dissipation channel of the electronic display screen under the control of the control mechanism, a transparent layer of a display area is avoided when the standby curtain is folded, the standby curtain is hidden on one side of a box body, and the front display area of the electronic display screen is covered by the heat dissipation channel between the transparent layer of the display area and the electronic display screen when the standby curtain is unfolded; the energy storage mechanism of the standby curtain comprises three forms of standby battery energy storage, gravity energy storage and elastic energy storage, wherein the energy storage mechanism is mutually converted with the energy of a screen power supply, when the electronic display screen can work normally, the energy storage mechanism stores energy, and when the electronic display screen cannot work normally, the energy storage mechanism releases the energy to expand the standby curtain;
When the standby curtain display unit adopts a standby battery energy storage mode, the standby battery is charged by a screen power supply, and the standby curtain driving mechanism adopts a bidirectional telescopic motor (simply called a bidirectional telescopic motor) which is jointly powered by the screen power supply and the standby battery; the trigger locking mechanism adopts a relay module (called relay module for short) connected with the power supply circuit of the electronic screen display unit, the trigger condition of the relay module is that the power supply circuit of the electronic screen display unit is turned off and on, and when the power supply circuit of the electronic screen display unit is turned off, the relay is triggered to reset: the contact is connected with the standby battery of the bidirectional telescopic motor to supply power in the direction of the screen power supply/simultaneously cut off, and the standby screen is driven to be unfolded by the power supply of the standby battery; the relay is set when the power circuit of the electronic screen display unit is on: the contact cuts off the standby battery direction power supply/simultaneously switches on the screen power supply direction power supply, and the screen power supply supplies power to draw in the standby curtain; the bidirectional telescopic motor is characterized in that the motor can be electrified in a bidirectional way, the movement direction of the driving motor is changed (folded or unfolded) after the direction of current is changed (forward or reverse), and the dead weight of the standby curtain can not cause the movement of the motor when no external force exists; when the electronic screen display unit works normally, the bidirectional telescopic motor adopts a screen power supply to supply power for forward shrinkage movement, and the folding operation of the standby curtain is completed; when the electronic screen display unit cannot work normally, the bidirectional telescopic motor adopts the standby battery to supply power for reverse unfolding action, and the unfolding operation of the standby curtain is completed;
Further, when the standby curtain display unit adopts standby battery energy storage and adopts bidirectional telescopic motor drive, the stroke sensing mechanism contain to expand stroke sensing mechanism and draw in stroke sensing mechanism two parts, stroke sensing mechanism constitute by travel switch or by proximity switch, expansion stroke sensing mechanism set up at: when the stand-by curtain is unfolded and the picture position is just consistent with the display space of the electronic screen, the travel marker on the curtain corresponds to a designated position on the box body, when the curtain is unfolded and moved, and when the picture of the curtain is just consistent with the display space of the electronic screen, the travel marker of the curtain touches or approaches to a travel switch or a proximity switch of the unfolding travel sensing mechanism, and the travel switch or the proximity switch of the unfolding travel sensing mechanism is triggered: disconnecting a battery power supply circuit of the standby curtain driving mechanism, stopping the unfolding action, and enabling the standby curtain to be in a static unfolding state; the folding stroke sensing mechanism is arranged at the following part: when the standby curtain is folded, the screen position completely avoids the display area of the electronic screen and the ventilation and heat dissipation channel, the travel marker on the curtain corresponds to a designated position on the box body, when the standby curtain is folded, the curtain mechanism completely avoids the display area of the electronic screen and the heat dissipation channel, the travel marker of the curtain touches or approaches to a travel switch or a proximity switch of the folding travel sensing mechanism, and the travel switch or the proximity switch of the folding travel sensing mechanism is triggered: the screen power supply circuit of the standby curtain driving mechanism is disconnected, the folding action is stopped, and the standby curtain is in a static folding state;
When the standby curtain display unit adopts a gravity energy storage or elastic energy storage form, the gravity energy storage structure comprises a balance rod (a balance rod for short) which is fixedly connected with the movable end of the standby curtain and plays a role of balance weight; or the elastic energy storage structure comprises an elastic energy storage and transmission device fixedly connected with the movable end of the standby curtain; the standby curtain driving mechanism is composed of a common motor (simply called a common motor) independently powered by a screen power supply; the triggering locking mechanism is composed of an electromagnetic locking module (electromagnetic locking module for short) for clamping, which is connected with a power circuit of the electronic screen display unit; the common motor is powered by a screen power supply to do forward folding movement on one hand, and is pulled by a gravity energy storage or elastic energy storage device arranged on the curtain unit to do reverse unfolding movement under the condition of no limit on the other hand; when the electronic screen displays normal work, the motor adopts a screen power supply to complete folding movement, and meanwhile (1) when a gravity energy storage structure is adopted (the folded standby curtain is limited to be hidden at the upper side of the electronic screen display unit), the upward-pulled standby curtain drives the counterweight rod to increase gravity energy storage, or (2) when an elastic energy storage structure is adopted (the hiding direction of the folded standby curtain is not limited), the standby curtain is folded to pull the elastic energy storage device and simultaneously increase the elastic energy storage; when the electronic screen display unit cannot work normally, the effect of the electromagnetic locking module connected with the power circuit of the electronic screen display unit disappears, and the standby curtain driving mechanism does not need electric drive and expands the standby curtain under the action of gravity energy storage or elastic energy storage; the electromagnetic locking module is characterized in that the balancing rod at the bottom end of the standby curtain after being folded can be directly sucked by the suction force of the electromagnet or supported by the extending lock rod of the electromagnetic lock, so that the purpose of preventing the standby curtain from returning due to gravity or elasticity is achieved;
Further, when the standby curtain display unit adopts a gravity energy storage or elastic energy storage form, the standby curtain driving mechanism is formed by a common motor, the trigger locking mechanism is formed by an electromagnetic locking module, the travel sensing mechanism only needs to be provided with a folding travel sensing mechanism, the folding travel sensing mechanism is formed by a travel switch or a proximity switch, and the folding travel sensing mechanism is arranged on the following structure: when the standby curtain is folded and the picture position completely avoids the display area of the electronic screen and the ventilation and heat dissipation channel, the travel marker on the curtain corresponds to a designated position on the box body; when the electronic screen works normally, the standby curtain moves in a furling way, once a travel marker on the curtain touches or approaches to a furling travel sensing mechanism, the mechanism triggers to disconnect a power supply circuit of a standby curtain driving mechanism and simultaneously connects a power supply circuit of the electromagnetic locking module for clamping, the curtain driving mechanism stops furling, and simultaneously the electromagnetic locking module for clamping generates a locking effect and prevents the standby curtain from returning to a furling state by gravity or elasticity, so that the standby curtain is kept stationary; when the electronic screen can not normally work, the power supply of the electronic screen disappears, and meanwhile, the electromagnetic locking module for clamping also resets the power off and the locking effect disappears, the standby curtain is unfolded and reset under the action of gravity or elastic force, and after the curtain picture leaves the folding position, the travel switch or the proximity switch of the folding travel sensing mechanism is reset: the power supply circuit of the standby curtain driving mechanism is in a connection state, and the power supply circuit of the electromagnetic locking module for clamping is in a disconnection state, when the curtain picture is just unfolded and is consistent with the display space of the electronic screen, the picture is completely unfolded, the position of the curtain is restored, and the curtain is in a natural static unfolding state;
Through the device, the electronic screen display unit of the bus electronic stop board and the working state of the standby curtain display unit are connected together, the electronic screen is stopped when the standby curtain is unfolded, a radiating channel is not needed any more, the standby curtain can occupy the radiating channel display information of the electronic screen, the electronic screen starts to work when the standby curtain is folded, and at the moment, the standby curtain is immediately folded and hidden on one side of the electronic display screen, so that the front radiating channel of the electronic display screen is recovered to be unobstructed, and the light transmission and radiating requirements of the electronic screen after normal operation are not influenced.
In a third aspect, the invention provides a bus electronic stop board equipment system, which comprises the device for embedding the bus electronic stop board into a standby curtain based on energy storage conversion.
Compared with the prior art, the method, the device and the equipment system for embedding the bus electronic stop board into the standby curtain based on energy storage conversion have the following advantages:
1. the information is not overlapped and displayed, and the user only needs to focus on the same display area and cannot be distracted;
2. the electronic screen and the standby curtain are switched in real time, so that the long-time exposure state of the black screen is stopped, the overall perception effect of the bus stop is improved, and good user experience is brought;
3. The display space is saved, and the available outdoor advertisement resources are increased.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a logic schematic diagram of a control circuit employing a battery backup energy storage, bi-directional telescoping motor drive scheme;
FIG. 2 is a logic diagram of a control circuit employing a gravity energy storage or elastic energy storage, common motor drive scheme;
FIG. 3 is a schematic diagram of a layout of a device employing a battery backup energy storage, bi-directional telescoping motor drive scheme
FIG. 4 is a schematic diagram of a layout of a device employing a gravity energy storage and common motor drive scheme
FIG. 5 is a schematic diagram of a layout of a device employing a spring energy storage and common motor drive scheme
Icon: a-triggering a locking mechanism relay coil; b-normally closed contacts of a closing stroke sensing mechanism (a proximity switch or a limit switch); c-triggering a normally open contact of the locking mechanism relay; d-triggering a normally closed contact of the locking mechanism relay; e-a bidirectional telescopic motor; f-normally closed contacts of an unfolding travel sensing mechanism (a proximity switch or a limit switch), g-normally open contacts of a folding travel sensing mechanism (a proximity switch or a limit switch); h-an ordinary motor independently powered by a screen power supply; i-an electromagnetic locking module for clamping; j-a front view of the standby curtain when the standby curtain is folded; a front view of the k-standby curtain when unfolded; l-side view of the standby curtain when unfolded; m-side view of the standby curtain when the standby curtain is folded; 1-a box body shell; 2-a folding stroke sensing mechanism; 3-a standby curtain; 4-an electronic screen display unit; 5-a display area light-transmitting layer on the case housing; 6-a travel marker on the standby curtain; 7, an unfolding stroke sensing mechanism; 8-a heat dissipation air port; 9-a heat dissipation channel between the light transmission layer of the display area and the electronic display screen; 10-motor drawing-in direction movement current; 11-motor deployment direction movement current; 12-locking and counterweight balance bar; 13-locking and pulling the balance bar; 14-a furled elastic force transmission device; 15-an elastic energy storage device; 16-an expanded elastic force transmission device;
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
Example 1
In this embodiment, a solution in which a standby curtain is driven by a standby battery energy storage unit, a bidirectional telescopic motor and a trigger unit is adopted, fig. 1 shows a logic schematic diagram of a control circuit of the solution, and fig. 3 shows a schematic diagram of a device layout of the solution, and a specific workflow is as follows:
when the electronic screen normally works, a relay coil of the a-trigger locking mechanism is electrified, a normally open contact of the c-trigger locking mechanism relay is closed, a normally closed contact of the d-trigger locking mechanism relay is disconnected, a screen power supply is powered on, a standby battery is disconnected, 10-motor furling direction movement current is generated, the curtain is furled, until a travel marker on the 6-standby curtain is close to or touches the 2-furling travel sensing mechanism, the normally closed contact of the b-furling travel sensing mechanism (a proximity switch or a limit switch) is disconnected, 10-motor furling direction movement current is terminated, the motor stops furling movement, and the 3-standby curtain is in a static state after furling, such as a front view when the j-standby curtain of fig. 3 is furled and a side view when the m-standby curtain is furled;
When the electronic screen can not work normally, the coil of the relay of the a-trigger locking mechanism stops being electrified, the normally open contact of the relay of the c-trigger locking mechanism is disconnected, the normally closed contact of the relay of the d-trigger locking mechanism is connected, the screen power supply is disconnected, the standby battery is powered in FIG. 1, movement current in the unfolding direction of the 11-motor is generated, the curtain is unfolded, until a travel marker on the 6-standby curtain approaches or touches the 7-unfolding travel sensing mechanism, the normally closed contact of the f-unfolding travel sensing mechanism (a proximity switch or a limit switch) is disconnected, movement current in the unfolding direction of the 11-motor is terminated, the motor stops unfolding movement, and the 3-standby curtain is in a static state after unfolding, such as a front view when the k-standby curtain is unfolded and a side view when the l-standby curtain is unfolded in FIG. 3;
as shown in fig. 3, the embodiment realizes the organic combination of the electronic display screen and the standby curtain of the bus electronic stop board by sharing the inherent heat dissipation channel of the electronic screen under the combined action of the standby battery energy storage, the bidirectional telescopic motor, the triggering unit and the travel sensing mechanism.
The example also provides a bus electronic stop board equipment system, which comprises the example device.
Example 2
In this embodiment, a solution of gravity energy storage and common motor driving of a standby curtain is adopted, fig. 2 shows a logic schematic diagram of a control circuit of the solution, and fig. 4 shows a schematic diagram of a device layout of the solution, and a specific workflow is as follows:
when the electronic screen works normally, the screen power supply in the figure 2 is powered, h-the screen is started by a common motor independently powered by the screen power supply, the curtain is folded, and the 12-locking and counterweight balance rod is driven to increase gravitational potential energy until a travel marker on the 6-standby curtain is close to or touches the 2-folding travel sensing mechanism, the normally closed contact of the b-folding travel sensing mechanism (a proximity switch or a limit switch) is disconnected, the motor stops folding movement, and meanwhile, the normally open contact of the g-folding travel sensing mechanism (the proximity switch or the limit switch) is closed, and an i-clamping electromagnetic locking module, such as an electromagnet, is switched on, so that the 12-locking and counterweight balance rod is locked, and the 3-standby curtain is in a static state after folding, such as a front view when the j-standby curtain of the figure 4 is folded and a side view when the m-standby curtain is folded;
when the electronic screen cannot work normally, the screen power supply in the figure 2 is powered off, the electromagnetic locking module for the i-clamping position, such as an electromagnet, has no locking effect, and the 12-locking and counterweight balancing rod falls under the action of gravity to drive the standby curtain to be unfolded, and the standby curtain is naturally stopped after being completely unfolded and is in a static state; a front view of the k-backup curtain of fig. 4 when deployed and a side view of the l-backup curtain when deployed;
As shown in fig. 4, the embodiment does not need a standby battery, and can realize the organic combination of the electronic display screen and the standby curtain of the bus electronic stop board by sharing the inherent heat dissipation channel of the electronic screen only through the combined action of the common motor and the electromagnetic locking mechanism.
The example also provides a bus electronic stop board equipment system, which comprises the example device.
Example 3
In this embodiment, a solution of elastic energy storage and common motor driving of a standby curtain is adopted, fig. 2 shows a logic schematic diagram of a control circuit of the solution, and fig. 5 shows a schematic diagram of a device layout of the solution, and a specific workflow is as follows:
when the electronic screen works normally, the screen power supply in the figure 2 supplies power, h-is started by a common motor independently powered by the screen power supply, the curtain is folded, meanwhile, a 15-elastic energy storage device is driven by a 13-locking and pulling balance rod and elastic force transmission devices (14 and 16) to increase elastic potential energy until a travel marker on the 6-standby curtain is close to or touches the 2-folding travel sensing mechanism, a normally closed contact of the b-folding travel sensing mechanism (a proximity switch or a limit switch) is disconnected, the motor stops folding movement, and a normally open contact of the g-folding travel sensing mechanism (the proximity switch or the limit switch) is closed, an electromagnetic locking module for i-clamping is connected, such as an electromagnet or an electromagnetic lock, so that the 13-locking and pulling balance rod is locked, and the 3-standby curtain is in a static state after folding, such as a front view when the j-standby curtain in figure 5 and a side view when the m-standby curtain is folded;
When the electronic screen cannot work normally, the screen power supply in fig. 2 is powered off, the locking effect of the electromagnetic locking module for the i-clamp position, the electromagnet or the electromagnetic lock is eliminated, the standby curtain is unfolded under the action of elasticity, and the standby curtain is naturally stopped after being completely unfolded and is in a static state; a front view of the k-backup curtain of fig. 5 when deployed and a side view of the l-backup curtain when deployed;
as shown in fig. 5, the embodiment does not need a standby battery, and can realize the organic combination of the electronic display screen of the bus electronic stop board and the standby curtain by sharing the inherent heat dissipation channel of the electronic screen only through the combined action of the common motor, the elastic energy storage device and the electromagnetic locking mechanism, and in the scheme, the standby curtain is always in an elastic expansion state, so that the curtain is smoother, the expansion direction is not limited, and the expansion action is more stable.
The example also provides a bus electronic stop board equipment system, which comprises the example device.
In summary, the method, the device and the equipment system for embedding the standby curtain into the bus electronic stop board, disclosed by the invention, achieve the purposes that only one picture faces a customer under any condition, and solve the problem that the electronic screen and the standby curtain in the existing bus electronic stop board are simply spliced or displayed in parallel.
In the technical solutions and basic implementation methods provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The apparatus implementations described above are merely illustrative, for example, of the accompanying drawings in which flow diagrams and block diagrams show possible compositions of apparatus and circuits according to basic embodiments of the invention. In this regard, each block in the flowchart or block diagrams may represent a module or unit, which comprises one or more like elements for implementing the specified logical function(s). It should also be noted that in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two units in series may in fact also be connected in a different order, depending on the function involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose components which perform the specified functions or acts.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (9)
1. A method for embedding a bus electronic stop board into a standby curtain based on energy storage conversion is characterized by comprising the following steps: be applied to public transit electron stop borad, public transit electron stop borad include box shell, electronic screen display module, reserve curtain control module and energy storage module, the box shell with electronic screen display module openly between contain the clearance passageway that is used for ventilation and heat dissipation, reserve curtain refer to when electronic screen display module can not normally work, can replace the plane show medium of drawing in of release information, reserve curtain control module be used for controlling the expansion and the action of drawing in of curtain, it includes drive module, trigger locking module and stroke control module, energy storage module be used for when electronic screen display module can normally work reserve energy, when electronic screen display module can not normally work release energy expansion reserve curtain, energy storage form includes reserve battery energy storage, gravity energy storage and elasticity energy storage, the method of public transit stop borad based on energy storage conversion include:
the method comprises the steps that S1, one end of a standby curtain is connected with a driving module and is hidden on one side of an electronic display module, the other end of the standby curtain can move back and forth in a gap channel between a box shell and the front side of an electronic screen, the standby curtain is driven to be unfolded and folded in the front gap of the electronic screen, the front side of the electronic display screen which stops running is covered when unfolded, information is released by replacing the electronic display screen, the standby curtain is hidden on one side of the electronic display screen when folded, and the light transmission and ventilation channels of the display screen are avoided, so that the normal display and ventilation and heat dissipation functions of the electronic display screen are not affected;
S2, connecting a driving module and a triggering locking module of the standby curtain with a power circuit of the electronic screen display module, when the power circuit of the electronic screen display module works normally, triggering the driving module to store the standby curtain by adopting the power of the power supply of the electronic screen display module, enabling the energy storage module to store energy in a form of charging the standby battery and increasing gravity or elastic potential energy, and when the power circuit of the electronic screen display module is disconnected, triggering the standby curtain to drive the standby curtain to be unfolded by adopting the standby battery, the gravity or the elastic potential energy;
s3, controlling the expansion and folding movable stroke of the standby curtain by the stroke control module, wherein the stroke control module comprises a stroke marker arranged at the movable end of the standby curtain and a touch or proximity sensing mechanism arranged at a designated position on the box body, and when the standby curtain is expanded in a form of energy storage of a standby battery, the stroke control module comprises an expansion stroke sensing mechanism and a folding Cheng Ganying mechanism, and the expansion stroke sensing mechanism is arranged at the position of the box body: when the standby curtain is unfolded and the picture position is exactly consistent with the display space of the electronic screen, the travel marker on the curtain corresponds to a designated position on the box body, and when the curtain is unfolded, the mechanism triggers and cuts off the unfolding power supply of the curtain driving module so as to stop unfolding and be in a static state as long as the travel marker on the curtain touches or approaches the mechanism; the folding stroke sensing mechanism is arranged at the following part: when the standby curtain is folded and the picture position completely avoids the display area of the electronic screen and the ventilation and heat dissipation channel, the travel marker on the curtain corresponds to a designated position on the box body, and when the curtain moves in a folding manner, the mechanism is triggered to cut off the folding power supply of the curtain driving module so as to stop folding and be in a static state as long as the travel marker on the curtain touches or approaches the mechanism; when the standby curtain is unfolded in a gravity or elastic energy storage mode, the stroke control module only needs to be provided with a furling stroke sensing mechanism.
2. The method for embedding the bus electronic stop board into the standby curtain based on energy storage conversion as set forth in claim 1, wherein the method comprises the following steps: when the standby curtain is unfolded in the form of energy storage of the standby battery, the standby curtain driving module is powered by the screen power supply and the standby battery together, when the electronic screen display module works normally, the standby curtain is driven to be folded by the screen power supply, and when the electronic screen display module cannot work normally, the standby curtain is driven to be unfolded by the standby battery; the backup battery is charged by the screen power supply when the screen power supply is available.
3. The method for embedding the bus electronic stop board into the standby curtain based on energy storage conversion as set forth in claim 1, wherein the method comprises the following steps: when the standby curtain is unfolded in a gravity or elastic energy storage mode, the standby curtain driving module is independently powered by a screen power supply, when the electronic screen display module works normally, the standby curtain driving module is folded by the screen power supply, then (1) when the folded standby curtain is hidden on the upper side of the electronic display screen, the standby curtain is pulled upwards to form gravity energy storage and lock the gravity energy storage through a screen power supply driving electromagnetic lock when the folded standby curtain is folded, or (2) no matter the folded standby curtain is hidden on any side of the electronic display screen, the standby curtain driving module can be provided with an elastic energy storage device, when the electronic screen display module cannot work normally, the elastic energy storage device is pulled to generate elastic energy storage and lock the standby curtain through the screen power supply driving electromagnetic lock, and when the electronic screen display module cannot work normally, the electromagnetic lock power supply is released simultaneously, and the standby curtain driving module uses the gravity energy storage or the elastic energy storage to unfold the standby curtain.
4. Device of bus electron station board embedding reserve curtain based on energy storage conversion, its characterized in that: be applied to public transit electron stop borad, public transit electron stop borad include box shell, electronic screen display module, reserve curtain control module and energy storage module, the box shell with electronic screen display module openly between contain the clearance passageway that is used for ventilation and heat dissipation, reserve curtain refer to when electronic screen display module can not normally work, can replace the plane show medium of drawing in of release information, reserve curtain control module be used for controlling the expansion and drawing in of curtain, it includes drive module, trigger locking module and stroke control module, energy storage module is used for when electronic screen display module can normally work reserve energy, when electronic screen display module can not normally work release energy expansion reserve curtain, the energy storage form includes reserve battery energy storage, gravity energy storage and elasticity energy storage, the device of public transit electron stop borad based on energy storage conversion include:
the electronic screen display unit is placed in a box shell of the public transport electronic stop board, the front surface of the box shell is a display area light-transmitting layer, and a ventilation and heat dissipation channel is arranged between the display area light-transmitting layer and the front surface of the electronic display screen;
The standby curtain display unit is used for replacing release information when the electronic screen display unit cannot normally display, the standby curtain display unit comprises a standby curtain, a control mechanism and an energy storage mechanism of the standby curtain, the control mechanism of the standby curtain comprises a driving mechanism, a trigger locking mechanism and a travel sensing mechanism, one end of the standby curtain is connected with the driving mechanism of the standby curtain, a curtain balance rod and a travel marker are arranged at the other end of the standby curtain, the standby curtain can move back and forth in a front ventilation and heat dissipation channel of the electronic display screen, the standby curtain is unfolded and folded in the front ventilation and heat dissipation channel of the electronic display screen under the control of the control mechanism, a transparent layer of a display area is avoided when the standby curtain is folded, the standby curtain is hidden on one side of a box body, and the front display area of the electronic display screen is covered by the heat dissipation channel between the transparent layer of the display area and the electronic display screen when the standby curtain is unfolded; the energy storage mechanism of the standby curtain comprises three forms of standby battery energy storage, gravity energy storage and elastic energy storage, the energy storage mechanism and the energy of a screen power supply are mutually converted, when the electronic display screen can work normally, the energy storage mechanism stores energy, and when the electronic display screen cannot work normally, the energy storage mechanism releases energy to expand the standby curtain.
5. The device for embedding the bus electronic stop board into the standby curtain based on energy storage conversion as set forth in claim 4, wherein: when the standby curtain display unit adopts a standby battery energy storage mode, the standby battery is charged by a screen power supply, and the standby curtain driving mechanism adopts a bidirectional telescopic motor which is jointly powered by the screen power supply and the standby battery; the trigger locking mechanism adopts a relay module connected with a power circuit of the electronic screen display unit, and the trigger condition of the relay module is that the power circuit of the electronic screen display unit is turned off and on, and when the power circuit of the electronic screen display unit is turned off, the trigger relay is reset: the contact is connected with the standby battery of the bidirectional telescopic motor to supply power in the direction of the screen power supply/simultaneously cut off, and the standby screen is driven to be unfolded by the power supply of the standby battery; the relay is set when the power circuit of the electronic screen display unit is on: the contact cuts off the standby battery direction power supply/simultaneously switches on the screen power supply direction power supply, and the screen power supply supplies power to draw in the standby curtain; the bidirectional telescopic motor is characterized in that the motor can be electrified in a bidirectional way, the moving direction of the motor is changed after the positive and negative directions of current are changed, and the dead weight of the standby curtain can not cause the movement of the motor when no external force exists; when the electronic screen display unit works normally, the bidirectional telescopic motor adopts a screen power supply to supply power for forward shrinkage movement, and the folding operation of the standby curtain is completed; when the electronic screen display unit cannot work normally, the bidirectional telescopic motor adopts the standby battery to supply power for reverse unfolding action, and the unfolding operation of the standby curtain is completed.
6. The device for embedding the bus electronic stop board into the standby curtain based on energy storage conversion as set forth in claim 4, wherein: when the standby curtain display unit adopts standby battery energy storage and adopts bidirectional telescopic motor drive, the stroke sensing mechanism contain expansion stroke sensing mechanism and draw in stroke sensing mechanism two parts, stroke sensing mechanism constitute by travel switch or by proximity switch, expansion stroke sensing mechanism set up at: when the stand-by curtain is unfolded and the picture position is just consistent with the display space of the electronic screen, the travel marker on the curtain corresponds to a designated position on the box body, when the curtain is unfolded and moved, and when the picture of the curtain is just consistent with the display space of the electronic screen, the travel marker of the curtain touches or approaches to a travel switch or a proximity switch of the unfolding travel sensing mechanism, and the travel switch or the proximity switch of the unfolding travel sensing mechanism is triggered: disconnecting a battery power supply circuit of the standby curtain driving mechanism, stopping the unfolding action, and enabling the standby curtain to be in a static unfolding state; the folding stroke sensing mechanism is arranged at the following part: when the standby curtain is folded, the screen position completely avoids the display area of the electronic screen and the ventilation and heat dissipation channel, the travel marker on the curtain corresponds to a designated position on the box body, when the standby curtain is folded, the curtain mechanism completely avoids the display area of the electronic screen and the heat dissipation channel, the travel marker of the curtain touches or approaches to a travel switch or a proximity switch of the folding travel sensing mechanism, and the travel switch or the proximity switch of the folding travel sensing mechanism is triggered: and (3) disconnecting a screen power supply circuit of the standby curtain driving mechanism, stopping the folding action, and enabling the standby curtain to be in a static folding state.
7. The device for embedding the bus electronic stop board into the standby curtain based on energy storage conversion as set forth in claim 4, wherein: when the standby curtain display unit adopts a gravity energy storage or elastic energy storage form, the gravity energy storage structure comprises a balance rod which is fixedly connected with the movable end of the standby curtain and plays a role of counterweight, namely a counterweight rod for short; or the elastic energy storage structure comprises an elastic energy storage and transmission device fixedly connected with the movable end of the standby curtain; the standby curtain driving mechanism is composed of a common motor independently powered by a screen power supply; the triggering locking mechanism is composed of an electromagnetic locking module which is connected with a power circuit of the electronic screen display unit and used for clamping; the common motor is powered by a screen power supply to do forward folding movement on one hand, and is pulled by a gravity energy storage or elastic energy storage device arranged on the curtain unit to do reverse unfolding movement under the condition of no limit on the other hand; when the electronic screen displays normal work, the motor adopts a screen power supply to complete folding movement, and meanwhile (1) when a gravity energy storage structure is adopted, the folded standby curtain is limited to be hidden at the upper side of the electronic screen display unit, the upward-pulled standby curtain drives the counterweight rod to increase gravity energy storage, or (2) when an elastic energy storage structure is adopted, the hiding direction of the folded standby curtain is not limited, and the standby curtain is folded to pull the elastic energy storage device and simultaneously increase the elastic energy storage; when the electronic screen display unit cannot work normally, the effect of the electromagnetic locking module connected with the power circuit of the electronic screen display unit disappears, and the standby curtain driving mechanism does not need electric drive and expands the standby curtain under the action of gravity energy storage or elastic energy storage; the electromagnetic locking module is characterized in that the balancing rod at the bottom end of the standby curtain after being folded can be directly sucked by the suction force of the electromagnet or supported by the extending lock rod of the electromagnetic lock, so that the purpose of preventing the standby curtain from returning due to gravity or elasticity is achieved.
8. The device for embedding the bus electronic stop board into the standby curtain based on energy storage conversion as set forth in claim 4, wherein: when the standby curtain display unit adopts a gravity energy storage or elastic energy storage form, the standby curtain driving mechanism is formed by a common motor, the trigger locking mechanism is formed by an electromagnetic locking module, the travel sensing mechanism only needs to be provided with a folding travel sensing mechanism, the folding travel sensing mechanism is formed by a travel switch or a proximity switch, and the folding travel sensing mechanism is arranged on the following side: when the standby curtain is folded and the picture position completely avoids the display area of the electronic screen and the ventilation and heat dissipation channel, the travel marker on the curtain corresponds to a designated position on the box body; when the electronic screen works normally, the standby curtain moves in a furling way, once a travel marker on the curtain touches or approaches to a furling travel sensing mechanism, the mechanism triggers to disconnect a power supply circuit of a standby curtain driving mechanism and simultaneously connects a power supply circuit of the electromagnetic locking module for clamping, the curtain driving mechanism stops furling, and simultaneously the electromagnetic locking module for clamping generates a locking effect and prevents the standby curtain from returning to a furling state by gravity or elasticity, so that the standby curtain is kept stationary; when the electronic screen can not normally work, the power supply of the electronic screen disappears, and meanwhile, the electromagnetic locking module for clamping also resets the power off and the locking effect disappears, the standby curtain is unfolded and reset under the action of gravity or elastic force, and after the curtain picture leaves the folding position, the travel switch or the proximity switch of the folding travel sensing mechanism is reset: the power supply circuit of the standby curtain driving mechanism is in an on state, and the power supply circuit of the electromagnetic locking module for clamping is in an off state, so that when the curtain picture is just unfolded and is consistent with the display space of the electronic screen, the picture is completely unfolded, the position of the curtain is restored, and the curtain is in a natural static unfolding state.
9. A public transit electron stop borad equipment system, its characterized in that: the bus electronic stop board equipment system comprises a device for embedding the bus electronic stop board based on energy storage conversion into a standby curtain as claimed in claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210196745.4A CN114582232B (en) | 2022-03-08 | 2022-03-08 | Method, device and equipment system for embedding bus electronic stop board into standby curtain based on energy storage conversion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210196745.4A CN114582232B (en) | 2022-03-08 | 2022-03-08 | Method, device and equipment system for embedding bus electronic stop board into standby curtain based on energy storage conversion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114582232A CN114582232A (en) | 2022-06-03 |
| CN114582232B true CN114582232B (en) | 2024-03-01 |
Family
ID=81771553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210196745.4A Active CN114582232B (en) | 2022-03-08 | 2022-03-08 | Method, device and equipment system for embedding bus electronic stop board into standby curtain based on energy storage conversion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114582232B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100968587B1 (en) * | 2010-03-18 | 2010-07-08 | (주)동남티디에스 | Folded large-sized electric sign and radiator |
| KR20120081328A (en) * | 2011-01-11 | 2012-07-19 | 디알씨티에스(주) | Multimedia advertising system |
| CN207319477U (en) * | 2017-07-21 | 2018-05-04 | 陕西奥翔网络科技有限公司 | A kind of intelligent Electronic Bus Stand |
| CN112767827A (en) * | 2021-03-22 | 2021-05-07 | 苏州市大创信息运用有限公司 | Screen door structure of bus electronic stop board |
-
2022
- 2022-03-08 CN CN202210196745.4A patent/CN114582232B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100968587B1 (en) * | 2010-03-18 | 2010-07-08 | (주)동남티디에스 | Folded large-sized electric sign and radiator |
| KR20120081328A (en) * | 2011-01-11 | 2012-07-19 | 디알씨티에스(주) | Multimedia advertising system |
| CN207319477U (en) * | 2017-07-21 | 2018-05-04 | 陕西奥翔网络科技有限公司 | A kind of intelligent Electronic Bus Stand |
| CN112767827A (en) * | 2021-03-22 | 2021-05-07 | 苏州市大创信息运用有限公司 | Screen door structure of bus electronic stop board |
Non-Patent Citations (1)
| Title |
|---|
| 胡绍忠 ; .智能公交系统中电子站牌硬件系统的设计.电子制作.2013,(第17期),78. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114582232A (en) | 2022-06-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108399861A (en) | Flexible display device support component and flexible display device | |
| CN201409149Y (en) | Display screen and mobile phone employing same | |
| CN114582232B (en) | Method, device and equipment system for embedding bus electronic stop board into standby curtain based on energy storage conversion | |
| CN101013824B (en) | Automatic change-over control circuit of terminal duplicate supply | |
| EP3731501A1 (en) | Electronic device | |
| CN205751376U (en) | A kind of intelligence turning display screen | |
| CN204020890U (en) | A kind of vehicle-mounted row control telltale | |
| CN201181372Y (en) | Mobile phone cam protecting equipment | |
| CN202634058U (en) | Low-voltage household distribution box with power-down automatic illuminating apparatus | |
| JP6053239B1 (en) | Signage equipment | |
| CN211429356U (en) | Mobile terminal | |
| CN203039628U (en) | Silicon controlled rectifier motor driving structure | |
| CN209071146U (en) | Automatic change-over and double power supply automatic transfer switch including it | |
| JP6299070B2 (en) | Table with information display and storage and expansion | |
| CN212569412U (en) | Can conveniently realize spherical ring curtain of accomodating | |
| CN210244220U (en) | Electronic device | |
| CN105350647A (en) | Control system for mobile extensible square cabin | |
| CN210724309U (en) | Automatic change-over switch control device | |
| CN201022154Y (en) | End dual-power automatic conversion switch control circuit | |
| CN116030709A (en) | Rotating shaft mechanism and electronic equipment | |
| CN219394484U (en) | Power supply system of automatic transfer switch | |
| CN220298376U (en) | Mobile holographic display workstation | |
| CN209297975U (en) | A kind of toggle switch component with fluctuating fin structure for automobile data recorder | |
| CN210167106U (en) | Advertising terminal | |
| CN220429989U (en) | Reserve power supply vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |