TWI745712B - Method for popping up information for mobile vehicle and device thereof - Google Patents

Abstract

A method for popping up information for mobile vehicle and a device thereof are revealed. The invention comprises a projection device and a cloud platform and a projection medium, and said projection device is disposed in a seat headrest of one of said mobile vehicles, and is opposite to the projection medium on the window glass of said mobile vehicle. Said cloud platform is used to communicate with said projection device and push a display message, so that said projection device delivers the display message to said projection medium, and a terminal unit of said cloud platform is used to schedule a playlist of said projection device. When said projection device does not download or download said display message that is incomplete at the predetermined playing time, said terminal unit transmits an error message to a fault handling server.

Description

Information placing method and device structure applied to mobile vehicles

The present invention relates to an information delivery method and a fixed structure of the device, and particularly refers to a method for real-time message push and broadcast by installing an information delivery device on a mobile vehicle.

The automobile is a vehicle that realizes movement on the road through a transmission system, and is a well-known means of transportation in the world today. Among the public transportation, a taxi is a common mobile vehicle used to carry passengers to and from various places.

With the advancement of technology, the current advertising marketing methods can be displayed in various forms for the general public to receive relevant information. For example, by presenting the advertising message in a paper structure and attaching it to various parts of the appearance of the taxi body, the effect of pushing information to various places can be achieved through the advantage of mobile.

However, the paper-based push can only provide fixed information that has been printed, and cannot arbitrarily change new real-time information. Although it is possible to reprint new advertising messages and attach them to the car body, it takes a lot of time, money, and environmental protection costs. Therefore, it is still inconvenient in use.

In addition, the general car can attach a paper advertising message to the body of the car is limited, for example, does not include the external car body other than the window glass for driving and passengers to see. At the same time, if the appearance of the car body is attached with advertising information, it will not be aesthetically pleasing to the overall appearance of the car.

For this reason, the inventor of the present invention made improvements in view of the above-derived problems, and started to develop solutions with the idea of inventing improvements. After many years of thinking, the mobile vehicle information delivery method and system of the present invention was developed. Produced to serve the public and promote the development of this industry.

One purpose of the present invention is to provide a structure of an information delivery method and device applied to a mobile vehicle, which integrates the information delivery system with the mobile vehicle, and effectively utilizes the information delivery system to the window glass of the mobile vehicle The mobile vehicle serves as a mobile advertising platform.

One object of the present invention is to provide an information delivery method and device structure applied to a mobile vehicle. The method of delivering information to the mobile vehicle through an information delivery system improves the traditional method that can only be installed in paper, fixed information, etc. The lack of relevant information about the push of mobile vehicles.

In order to achieve the aforementioned objectives and effects, the present invention discloses an information delivery method applied to a mobile vehicle, which includes: arranging a projection device in a seat headrest of a mobile vehicle, and the projection device Projected to a projection medium of a window glass of the mobile vehicle; connected to the projection device through a cloud platform communication and pushed a display message, so that the projection device puts the display message on the projection medium, and at the same time uses one of the cloud platforms The terminal unit schedules a playlist of the projection device, where the playlist includes a designated time, a message information of the display message, and a status message; and when the projection device has not downloaded or downloaded incompletely at the designated time When the message is displayed, the terminal unit sends an error message to a fault handling server.

In an embodiment of the present invention, it is also disclosed that the display message includes a time display message or a real-time display message.

In an embodiment of the present invention, it is also disclosed that the projection device placed on the projection medium includes a playback block, wherein the playback block includes a plurality of blocks, and one of the blocks plays the display message.

In an embodiment of the present invention, it is also disclosed that the projection device is a liquid crystal silicon-on-silicon projector, which is provided with: a communication device, which is communicatively connected to the cloud platform, and the cloud platform pushes the display message to the projection device ; And a processing unit, which is electrically connected to the communication device and a storage unit, the processing unit stores the display message in the storage unit, a drop device, which is electrically connected to the processing unit, and the drop device sets the display message In the projection medium.

In an embodiment of the present invention, it is also disclosed that the storage unit stores a timing message pushed by the cloud platform, so that the projection device puts the timing message on the projection medium when there is no communication connection. When the timing message fails to be delivered, the processing unit generates an abnormal message and stores it in the storage unit.

In an embodiment of the present invention, it is also disclosed that the projection medium is cloth, mist or projection film.

In addition, the present invention discloses a structure of an information delivery device applied to a mobile vehicle, which includes: a projection device arranged in a seat headrest of a mobile vehicle, and one side of the seat headrest is provided with a An opening, one side of the projection device is provided with a throwing device, the throwing device is oppositely arranged on the opening; and a projection medium is arranged on a window glass on one side of the mobile carrier, which is oppositely arranged on the opening; wherein , Connect the projection device through a cloud platform communication and push a display message, so that the projection device puts the display message on the projection medium, and a terminal unit of the cloud platform is used to schedule a playlist of the projection device. Further, The playlist includes a designated time, one of the display messages, and a status message. Furthermore, when the projection device does not download or incompletely download the display message at the designated time, the terminal unit sends an error message To a fault handling server.

In an embodiment of the present invention, it is also disclosed that the structure of the information delivery device applied to the mobile vehicle further includes a fixing element that fixes the projection device on a support rod in the seat headrest.

In an embodiment of the present invention, it is also disclosed that the display message includes a time display message or a real-time display message.

In one embodiment of the present invention, it is also disclosed that the projection device is a liquid crystal silicon-on-silicon projector, which is provided with: a communication device, which is communicatively connected to the cloud platform, and the cloud platform pushes the display message to the projection device; A processing unit, which is electrically connected to the communication device and a storage unit, the processing unit stores the display message in the storage unit; and a delivery device, which is electrically connected to the processing unit, and the delivery device sets the display message to The projection medium.

In an embodiment of the present invention, it also discloses that the storage unit stores a timing message pushed by the cloud platform, so that the projection device puts the timing message on the projection medium when the projection device has no communication connection. When the timing message delivery fails, the processing unit generates an abnormal message and stores it in the storage unit.

In an embodiment of the present invention, it is also disclosed that the projection device placed on the projection medium includes a playback block, wherein the playback block includes a plurality of blocks, and one of the blocks plays the display message .

In an embodiment of the present invention, it is also disclosed that the projection medium is cloth, mist or projection film.

In order to enable your reviewer to have a further understanding and understanding of the features of the present invention and the effects achieved, only the examples and detailed descriptions are provided, and the description is as follows:

Hereinafter, various embodiments of the present invention will be illustrated by the drawings to describe the present invention in detail; however, the concept of the present invention may be embodied in many different forms, and should not be construed as being limited to the exemplification set forth herein Examples.

Here, the process steps executed by the information delivery method of the first embodiment of the present invention will be described. Please refer to Fig. 1, which is a flowchart of the information delivery method according to the first embodiment of the present invention. As shown in the figure, the information delivery method of this embodiment includes the following steps:

Step S11: Set the projection device in the seat headrest of the mobile carrier, and project the projection device to the projection medium of the window glass of the mobile carrier;

Step S13: Connect to the projection device via cloud platform communication and push the display message, so that the projection device will put the display message on the projection medium, and at the same time use the terminal unit of the cloud platform to schedule the playlist of the projection device; and

Step S15: When the projection device does not download or downloads the display message of incompletely within the specified time, the terminal unit sends an error message to the fault processing server.

The structure of the information delivery device required by the information delivery method of the first embodiment of the present invention will be explained continuously. Please refer to Figure 2, which is a structural diagram of the information delivery system of the first embodiment of the present invention. As shown in the figure, it includes a projection device 1 and a mobile vehicle 3, and please also refer to Figure 3A. It is a schematic diagram of the structure of the information delivery device of the first embodiment of the present invention.

As shown in the figure, the information delivery device of this embodiment is arranged in a seat headrest 30 of the mobile carrier 3. The seat headrest 30 is provided with an opening 302, which is installed in the seat headrest 30 The information delivery device includes the projection device 1, which is provided with a delivery device 18, which is disposed opposite to the opening 302, wherein the structure of the information delivery device applied to a mobile vehicle of the present invention further includes a fixed element 36. The fixing element 36 fixes the projection device 1 to a supporting rod 304 in the seat headrest 30. The fixing element 36 mentioned above can be attached with devil felt, L-shaped bracket or double-sided tape, etc. It is fixed, but not limited to this. Furthermore, the seat headrest 30 includes an accommodating space 306 for arranging shock-proof foam and the information delivery device of this embodiment.

Moreover, the projection device 1 is connected to the projection device 1 through a cloud platform 5 and a display message 50 is pushed, so that the projection device 1 puts the display message 50 on a projection medium 32, and at the same time, a terminal unit 51 of the cloud platform 5 is used for scheduling The projection device 1 has a play list 53, wherein the play list 53 includes a designated time, a message information of the display message 50, and a status message. Furthermore, the display message 50 includes a time display message 502 or a real-time display message. A message 504 is displayed, and when the projection device 1 has not downloaded or downloaded the display message 50 incompletely at the specified time, the terminal unit 51 sends an error message 512 to a troubleshooting server 7, and the message information is the The name or number of the display message 50, and the status message is the download status of the display message 50, and the display message 50 can be divided into the timing display message 502 and the instant display message 504.

Among them, the projection device 1 of the present invention uses a liquid crystal on silicon (Liquid Crystal On Silicon, abbreviated LCoS) projector, also known as a silicon-based liquid crystal projector, or a single crystal silicon reflective liquid crystal projector. The transistor is grown on the wafer. This is a conventional technology. It uses a semiconductor process to make a drive panel (also known as CMOS-LCD), then the transistor is polished flat by grinding technology, and aluminum is plated as a mirror to form a CMOS substrate. Then the CMOS substrate is bonded to the glass substrate containing the transparent electrode, and then the liquid crystal is drawn in for packaging testing. In actual application, the light is projected from the outside to the chip, and then the brightness of the LCD on the chip determines how much light is reflected , And this change in reflectivity is modulated by the image signal. Therefore, as long as the image signal is applied to the silicon chip, the light reflected by the chip will change with the video image, and then projected to the screen through the lens , The image can be presented on the projection medium 32.

Next, please continue to refer to Figure 2, which is a structural diagram of the information delivery device of the first embodiment of the present invention, which includes a communication device 10, a processing unit 14, a storage unit 16, and a delivery device 18. The communication device 10 is connected to the cloud platform 5 by wireless communication, so that the projection device 1 can receive the display message 50 transmitted by the cloud platform 5 at any time. The processing unit 14 is electrically connected to the storage unit 16, and can place a flash drive or a memory card to store an offline message (not shown, such as an advertisement) when the projection device 1 and the cloud platform 5 are offline In the projection medium 32, the storage unit 16 is a flash drive, a memory card, a built-in flash memory (Flash rom) or a hard disk, etc.

And the above-mentioned projection structure of the projection device 1 includes a light source 11, a flat reflective element 13 and a curved reflective element 15. Please refer to Figure 3C, which is an enlarged schematic diagram of the structure of the information delivery device according to the first embodiment of the present invention. When the projection device 1 is turned on, the projection device 1 is communicatively connected to the cloud platform 5, and the cloud platform 5 pushes the display message 50, and the projection device 1 stores the display message 50 in the storage unit 16, and puts it at the same time The display message 50 is on the projection medium 32. When the projection device 1 receives the display message 50 and plays, the light source 11 in the projection device 1 is activated, and the light source 11 projects a light L1 (including the display message 50) To a flat reflective element 13, where the flat reflective element 13 used in this embodiment uses a liquid crystal on silicon (LCoS) drive panel, but not limited to this, the light L1 is projected on the flat reflective element 13 A first projection surface P1 is formed. The flat reflective element 13 reflects the light L1 to the curved reflective element 15. The light L1 greatly increases the projection area within a short distance due to the curved surface of the curved reflective element 15, forming a first Two projection surfaces P2, the second projection surface P2 is projected onto the projection medium 32 through the opening 302 through the placing device 18, and the present invention uses this mechanism to communicate with the cloud platform 5 through the projection device 1 After the display message 50 is displayed, the plurality of reflective light sources L1 in the projection device 1 are used to form the display message 50 and placed on the projection medium 32.

In addition, when the projection device 1 does not activate the communication device 10 to connect to the cloud platform 5 to download the display message 50 at the specified time, the terminal unit 51 will send the error message 512 to the fault handling server 7. Afterwards, the management end of the cloud platform 5 will receive the error message 512 and arrange the maintenance processing of the projection device 1. For example, when the projection device is not connected to the cloud platform 5 on April 5, the device that installs the projection device 1 The mobile vehicle 3 also did not ask for leave from the vehicle company to which it belongs. Therefore, the cloud platform 5 determines that the projection device 1 is faulty, and therefore, transmits the error message 512 to the fault handling server 7.

The mobile vehicle 3 mentioned above generally refers to a car (a hatchback or a sedan).

The aforementioned projection medium 32 is made of cloth, water mist or projection film.

The aforementioned Cloud Platform 5 is an operating system built on the Internet, and a server with core infrastructure, data analysis and machine learning technologies.

Next, please also refer to Figure 3A, which is a schematic diagram of the structure of the information delivery device of the first embodiment of the present invention, Figure 3B, which is a schematic diagram of the structure and position of the information delivery device of the first embodiment of the present invention, and fourth The figure is a schematic diagram of the displayed image of the information placing method according to the first embodiment of the present invention. The flow of the information delivery method of the mobile vehicle of the present invention will be described below. First, as shown in FIGS. 3A and 3B, the projection device 1 is installed in the seat headrest 30 of the mobile carrier 3 so as to be opposite to the window glass 34 of the mobile carrier 3 Projection medium 32. Continuing, as shown in Figure 4, the communication device 10 in the projection device 1 receives the display message 50 transmitted from the cloud platform 5, and then puts the display message 50 on the projection medium 32 through the projection device 1 (Such as step S13), the utility of the present invention to push the display message 50 to the mobile vehicle 3 is completed here.

Wherein, the display message 50 includes fixed advertisements or messages that are played regularly and regularly, or major messages currently occurring in various parts of the world, such as real-time information such as natural disasters, man-made terrorist attacks, or national emergency alert messages, and is not limited thereto.

In detail, the projection device 1 of the present invention is arranged on the seat headrest 30 of the rear seat of the mobile carrier 3, and although the distance between it and the window glass 34 behind the mobile carrier 3 is relatively short, however, The projection device 1 of the present invention can be used to display the information provided by the display message 50 on the projection medium 32. In other words, according to the structural design of the traditional projector, the distance between it and the projection interface is limited to a certain extent, and it cannot be directly installed on the mobile carrier 3 to achieve the effects achieved by the present invention.

Furthermore, the projection device 1 of the present invention can also be respectively arranged on the headrest of a plurality of seats seated behind the mobile carrier 3. For example, the rear seat headrest on the left is provided with one projection device 1, and the dropped message 50 is displayed on the left side of the window glass 34 behind the moving vehicle 3, and the rear seat headrest on the right is provided with another projection device. 1. The dropped message 50 is displayed on the right side of the window glass 34 behind the mobile vehicle 3, and the required relevant information is independently displayed on each part of the window glass 34 behind the vehicle body. It differs from the technical content taught above in that the aforementioned projection device 1 is only provided with one of the headrests of the rear seat, and the message 50 is placed on the projection medium 32 of the window glass 34 of the rear seat. superior. This paragraph discloses that the projection device 1 is installed on the different seat headrests 30 of the mobile carrier 3, so that the left and right positions of the projection medium 32 at the rear are allocated to display the information dropped by the projection device 1 respectively. .

Or the projection device 1 can also be installed in the position of the pillars (such as the known A-pillar, B-pillar, and C-pillar, not shown) inside the mobile carrier 3. The fixing method can be through pasting and fastening And other methods, but not limited to this. Here is an example: the projection device 1 is installed on the left and right pillars (B pillars) of the mobile vehicle 3, and the projection device 1 located on the left pillar of the mobile vehicle 3 is relative to the The window glass 34 on the right rear of the mobile vehicle 3, and the projection device 1 located on the right column of the mobile vehicle 3, relative to the window glass 34 on the left and rear of the mobile vehicle 3, can be The display message 50 is projected on the vehicle window glass 34 on the left and right rear of the mobile carrier 3 by the projection device 1.

In addition, the projection device 1 can be further installed on a roof surface (not shown) inside the mobile vehicle 3 and project the message 50 with respect to the window glass 34 behind the mobile vehicle 3.

Here, the above-mentioned installation position of the projection device 1 of the present invention is not limited as long as it can be combined and used. For example, when there are no passengers in the vehicle, the projection medium 32 of the window glass 34 at the left, right, and rear of the mobile vehicle 3 can be simultaneously controlled to display the dropped display message 50. When there are passengers on the left of the rear seat in the car, only the display message 50 is displayed on the window glass 34 on the right or rear of the mobile vehicle 3 to avoid hindering the passengers from viewing the external environment; Whether the projection device 1 delivers the message 50 or not depends on the terminal unit 51 (as shown in FIG. 2) of the cloud platform 5 to decide to transmit the display message 50 to the projection device 1.

Please continue to refer to Figure 2, which is a structural diagram of the information delivery system according to the second embodiment of the present invention. As shown in the figure, in the information delivery system of this embodiment, the cloud platform 5 further includes the terminal unit 51. The terminal unit 51 is used to continuously receive the updated display message 50, and the display message 50 passes through the cloud platform 5. The projection device 1 is transmitted to the projection medium 32 and is placed on the projection medium 32. The projection device 1 is placed on the projection medium 32 and includes a playing block 38. The playing block 38 includes a plurality of blocks 382. One of the blocks 382 plays the display message 50. Please refer to Figure 5, which is a schematic diagram of the display message playback of the present invention. As shown in the figure, the projection medium 32 can respectively display the display message 50 and the other display at the same time. The message 50 is in these blocks 382.

Here, the process steps executed by the information delivery method of the second embodiment of the present invention will be described. Please refer to FIG. 6, which is a structural diagram of the information delivery device according to the second embodiment of the present invention. As shown in the figure, in the information delivery system of the mobile vehicle of this embodiment, the projection device 1 further includes the storage unit 16. When the cloud platform 5 and the projection device 1 are in an offline state, the cloud platform 5 cannot be confirmed by the terminal unit 51 that the delivery status of the projection device 1 is normal or abnormal. Therefore, the storage unit 16 of the projection device 1 stores an abnormal message 514 caused by the abnormality of the projection device 1, and then according to the operator of the mobile vehicle 3 when reporting repairs or regular maintenance, through the connection state or by the maintenance personnel Take out the storage unit 16 and read the abnormal message 514, then remove the projection device 1 for maintenance.

Or the user can directly control the built-in/peripheral control interface (not shown) of the projection device 1, and understand the abnormal problem of the projection device 1 according to the abnormal message 514. In addition, the storage unit 16 also downloads, stores and plays the timing display message 502 when the cloud platform 5 and the projection device 1 are in a connected state (in general) to play, and wait for the projection device 1 and the cloud When the platform 5 is offline, the timing display message 502 can still be placed on the projection medium 32.

In addition, the above-mentioned application of the disclosed embodiments of the present invention is not limited to only being executed on the mobile vehicle 3. The present invention can also be installed on the side of the inner space of the elevator carrying passengers, and opposite to the door (steel) installed inside the elevator, the white cloth, white paper or white background objects attached to the door, but it is not limited to this, and then It is also possible to implement the action method of the present invention to achieve related effects.

Or it can be connected with the navigation satellite of the mobile vehicle 3, and the projection medium 32 can be set on the front glass of the mobile vehicle 3 for road navigation, and the projection device 1 can be set in the storage in front of the passenger seat. The display message 50 is projected onto the projection medium 32 through the projection device 1 in the locker (the opening 302 is provided on one side of the locker), the interior of the car roof or other suitable places, and this embodiment can It is applied to taxis, Uber, etc., so that passengers who are preparing to take a ride outside the car can know whether they have booked the trip for themselves.

The projection device 1 of the present invention is further equipped with an infrared emitter and an infrared detector, which can detect the position where the user touches the projection medium 32 through infrared, so as to achieve the effect of multi-touch detection.

Therefore, the present invention is really novel, progressive, and available for industrial use. It should meet the patent application requirements of my country's patent law. Undoubtedly, I filed an invention patent application in accordance with the law. I pray that the Bureau will grant the patent as soon as possible.

However, the above are only the preferred embodiments of the present invention, and are not used to limit the scope of implementation of the present invention. For example, the shapes, structures, features and spirits described in the scope of the patent application of the present invention are equally changed and modified. , Should be included in the scope of patent application of the present invention.

1: Projection device 10: Communication device 11: light source 13: Plane reflective element 14: Processing unit 15: curved reflective element 16: storage unit 18: Dropping device 3: mobile vehicle 30: Seat headrest 302: open 304: support rod 306: accommodating space 32: projection medium 34: car window glass 36: fixed element 38: Play block 382: Block 5: Cloud platform 51: terminal unit 53: playlist 512: error message 514: Abnormal Message 50: display message 502: Timing display message 504: Real-time display of messages 7: Troubleshooting server L1: light P1: The first projection surface P2: Second projection surface S11: steps S13: steps S15: steps

Figure 1: It is a flowchart of the information placing method according to the first embodiment of the present invention; Figure 2: It is a structural diagram of the information delivery device of the first embodiment of the present invention; Figure 3A: It is a schematic diagram of the structure of the information delivery device of the first embodiment of the present invention; Figure 3B: It is a schematic diagram of the structural position of the information delivery device according to the first embodiment of the present invention; Figure 3C: It is an enlarged schematic diagram of the structure of the information delivery device according to the first embodiment of the present invention; Figure 4: It is a schematic diagram of the displayed image of the information placing method according to the first embodiment of the present invention; Figure 5: It is a schematic diagram of the display message playback of the present invention; and Figure 6: It is a structural diagram of an information delivery device according to a second embodiment of the present invention.

S11: steps

S13: steps

S15: steps

Claims (13)

An information delivery method applied to mobile vehicles, which includes: A projection device is arranged in a headrest of a seat of a mobile vehicle, and the projection device is projected to a projection medium of a window glass of the mobile vehicle; Connect the projection device through a cloud platform communication and push a display message, so that the projection device puts the display message on the projection medium, and a terminal unit of the cloud platform is used to schedule a playlist of the projection device, wherein the The playlist includes a designated time, one of the displayed messages and a status message; and When the projection device has not downloaded or downloaded the display message incompletely within the specified time, the terminal unit sends an error message to a fault handling server. Such as the information delivery method applied to mobile vehicles as described in item 1 of the scope of patent application, The display message includes a certain time display message or an instant display message. Such as the information delivery method applied to mobile vehicles as described in item 1 of the scope of patent application, The projection device placed on the projection medium includes a play block, wherein the play block includes a plurality of blocks, and one of the blocks plays the display message. Such as the information delivery method applied to mobile vehicles as described in item 1 of the scope of patent application, The projection device is a liquid crystal silicon-on-silicon projector, which is equipped with: A communication device, which is connected to the cloud platform in communication, and the cloud platform pushes the display message to the projection device; A processing unit electrically connected to the communication device and a storage unit, the processing unit storing the display message in the storage unit; and A placing device is electrically connected to the processing unit, and the placing device casts the display message on the projection medium. The information delivery method applied to mobile vehicles as described in item 4 of the scope of patent application, The storage unit stores a timing display message pushed by the cloud platform, so that the projection device puts the timing display message on the projection medium when there is no communication connection, and the processing is performed when the timing display message fails to be delivered The unit generates an abnormal message and stores it in the storage unit. Such as the information delivery method applied to mobile vehicles as described in item 1 of the scope of patent application, The projection medium is cloth, water mist or projection film. A structure of an information delivery device applied to a mobile vehicle, which includes: A projection device arranged in a seat headrest of a mobile carrier, one side of the seat headrest is provided with an opening, one side of the projection device is provided with a throwing device, and the throwing device is arranged opposite to the opening; and A projection medium, which is arranged on a vehicle window glass on one side of the mobile carrier, and which is oppositely arranged on the opening; Wherein, the projection device is connected through a cloud platform communication and a display message is pushed, so that the projection device puts the display message on the projection medium, and at the same time, a terminal unit of the cloud platform is used to schedule a playlist of the projection device, and further , The playlist includes a designated time, one of the display messages and a status message. Furthermore, when the projection device does not download or incompletely download the display message at the designated time, the terminal unit sends an error Message to a fault handling server. As described in item 7 of the scope of patent application, the information delivery device applied to mobile vehicles The structure, wherein the structure of the information delivery device applied to the mobile vehicle further includes a fixing element, which fixes the projection device on a support rod in the seat headrest. As described in item 7 of the scope of patent application, the information delivery device applied to mobile vehicles Structure, where the display message includes a certain time display message or an instant display message. The information delivery device applied to mobile vehicles as described in item 7 of the scope of patent application In the structure, the projection device is a liquid crystal silicon-on-silicon projector, which is provided with: A communication device, which is connected to the cloud platform in communication, and the cloud platform pushes the display message to the projection device; A processing unit electrically connected to the communication device and a storage unit, the processing unit storing the display message in the storage unit; and A placing device is electrically connected to the processing unit, and the placing device casts the display message on the projection medium. The information delivery device applied to mobile vehicles as described in item 10 of the scope of patent application The structure in which the storage unit stores a timing display message pushed by the cloud platform, so that the projection device puts the timing display message on the projection medium when there is no communication connection, wherein, when the timing display message fails to be delivered , The processing unit generates an abnormal message and stores it in the storage unit. The information delivery device applied to mobile vehicles as described in item 7 of the scope of patent application The structure in which the projection device is placed on the projection medium includes a play block, wherein the play block includes a plurality of blocks, and one of the blocks plays the display message. As described in item 7 of the scope of patent application, the information delivery device applied to mobile vehicles Structure, wherein the projection medium is cloth, water mist or projection film.

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