JP2009210948A - Electronic poster system and electromotive force supervising and controlling display confirmation program used for electronic poster system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic poster system which does not require maintenance operation to perform supplementary charge by an external power source and which is not limited in an installation place and movement. <P>SOLUTION: The electronic poster system is constituted of a server device 30 and a plurality of display devices 40. The server device 30 is installed, for example, in a station building and transmits data for display by radio communication. The display devices 40 are freely installed at the same position as that for advertisement using the conventional paper poster such as bulletin boards or outer walls in all the area of the station. Emergency display on accident information or the like can be freely additionally installed and also can be moved in facilities of the station. The display devices 40 are connected to the server device 30 by radio, have a function to receive the data for display transmitted from the server device 30 and display it on a screen, and is operated by electromotive force of a solar battery 43b. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an electronic poster system and an electromotive force monitoring control display confirmation program used for the electronic poster system. For example, a server device that creates display data, such as a station premises, displays the same display data on a screen. The present invention relates to an electronic poster system suitable for use in a case where a plurality of display devices are distributedly arranged and an electromotive force monitoring control display confirmation program used in the electronic poster system.

  Paper posters are easy to install, but have the problem that replacement work during renewal takes a lot of work. Various electronic poster systems have been developed to improve this. However, a communication cable for transmitting data when the display contents are updated and a power source for supplying power to the display device side of the system. A cable is required, and there are restrictions on the degree of freedom of installation location and easy installation and mobility. For this reason, an electronic poster system using electronic paper and wireless communication has been proposed.

  This type of electronic poster system includes a server device 10 and a display device 20, as shown in FIG. The server device 10 includes a control unit 11, a data input unit 12, a data storage unit 13, a wireless communication unit 14, and a display unit 15. The display device 20 includes a control unit 21, a wireless communication unit 22, a secondary battery 23, and a display unit 24.

  In the server device 10, display data is created and the created data is taken in based on the input data in by the data input unit 12, and these data are stored in the data storage unit 13. The accumulated data is transmitted to the display device 20 by the control unit 11 via the wireless communication unit 14 based on program control and displayed on the display unit 15. The display device 20 is configured by electronic paper, and display data transmitted from the server device 11 is received by the wireless communication unit 22. Display data received by the wireless communication unit 22 is displayed on the display unit 24 via the control unit 21. Further, the secondary battery 23 supplies power to each part of the display device 20. The secondary battery 23 is supplementarily charged by an external power source (not shown).

  At present, there is no appropriate prior art document information related to the above-described conventional technology.

However, the electronic poster system has the following problems.
That is, in the electronic poster system of FIG. 3, since only the secondary battery 23 is used as the power source of the display device 20, maintenance work is required to perform supplementary charging with an external power source at regular intervals. In this case, it takes time for the person in charge to go to the place where the display device 20 is installed, remove the display device 20 from the wall, etc., and reinstall it after charging. In addition, when the display device 20 is configured so that power is always supplied from an external power source, the display device 20 is not completely cable-less, and there are restrictions on the installation location associated with securing a power source and restrictions on movement associated with a wired cable. There is a problem of receiving.

  The present invention has been made in view of the above-described circumstances, and an electronic poster system and an electronic poster system that do not require a maintenance work for performing supplementary charging with an external power supply and are not subject to restrictions on installation location or movement. It is an object to provide an electromotive force monitoring control display confirmation program to be used.

  In order to solve the above-described problems, a first configuration of the present invention includes a server device that transmits display data by wireless communication, and the display data that is wirelessly connected to the server device and transmitted from the server device. The present invention relates to an electronic poster system having a plurality of display devices that receive and display a screen, and each of the display devices is configured to operate by an electromotive force of a solar cell.

  According to the configuration of the present invention, each display device is configured to operate by the electromotive force of the solar cell, so that it can be installed and moved at any location within the wireless network range, and from the remote server device. The display contents can be updated. Further, the display device can be completely wireless, thin, and light, and can have the same installation convenience as a conventional paper poster.

  Each display device has a power supply unit for operating the display device, and the power supply unit includes a secondary battery and a solar battery for charging the secondary battery, and an electronic poster system, An electromotive force monitoring control display confirmation program used in the electronic poster system is provided.

  Further, in an environment where there is a light source always around when there is a need for display, in the present invention, each display device has a power supply unit for operating the display device, and the power supply unit is composed only of solar cells. Yes.

  In addition, according to the present invention, each display device is configured to transmit, to the server device by wireless communication, when the screen display of display data is completed, that the screen display is completed. Further, when the server device does not receive the completion of the screen display from each display device, the server device repeats the transmission of the display data to the display device a predetermined number of times, and further, when the fact that the screen display is completed is not received, The display device is configured to display on the screen that the display device is in a display error state.

  Further, in the present invention, each display device monitors the electromotive force of the solar cell, and when an abnormality occurs in the electromotive force, the electromotive force monitor generates electromotive force abnormality information indicating that the electromotive force is abnormal. And first wireless communication means for transmitting the electromotive force abnormality information generated by the electromotive force monitoring means to the server device by wireless communication. The server device includes: a second wireless communication unit that receives the electromotive force abnormality information transmitted from each display device; and the solar cell based on the electromotive force abnormality information received by the second wireless communication unit. And a display unit that displays on the screen that the electromotive force is abnormal.

FIG. 1 is a block diagram showing an electrical configuration of a main part of an electronic poster system according to a first embodiment of the present invention.
The electronic poster system of this example includes a server device 30 and a plurality of display devices 40,..., 40 as shown in FIG. The server device 30 is installed in, for example, a station building and transmits display data by wireless communication under program control. The display devices 40,..., 40 are freely installed at the same positions as advertisements using conventional paper posters such as bulletin boards and outer walls throughout the station, and emergency displays such as accident information are in the station facility. It can be freely installed and moved. In particular, in this embodiment, the display devices 40,..., 40 are wirelessly connected to the server device 30 and have a function of receiving display data transmitted from the server device 30 and displaying it on the screen. Operates by electromotive force.

  The server device 30 includes a control unit 31, a data input unit 32, a data storage unit 33, a wireless communication unit 34, and a display unit 35. The data input unit 32 is composed of, for example, a keyboard or a memory driver, and creates display data and takes the created data as input data in. The data storage unit 33 is composed of, for example, a RAM (Random Access Memory) and stores the captured data. The wireless communication unit 34 is configured as a wireless local area network (LAN), for example, and transmits display data stored in the data storage unit 33 by wireless communication. The control unit 31 controls the entire server device 30 based on a predetermined control program. The display unit 35 displays data necessary for the operation of the server device 30 such as display data transmitted from the wireless communication unit 34, for example.

  The display device 40 includes a control unit 41, a wireless communication unit 42, a power supply unit 43, and a display unit 44. The wireless communication unit 42 receives display data transmitted from the wireless communication unit 34 of the server device 30. The power supply unit 43 is a power supply for the entire display device 40 to operate, and includes a secondary battery 43a and a solar battery 43b. The secondary battery 43a is composed of, for example, a lithium ion battery. The solar battery 43b is for converting the ambient light p into electric power and charging the secondary battery 43a.

  The display unit 44 is composed of, for example, electronic paper and displays display data. The control unit 41 has a CPU (Central Processing Unit) 41a as a computer for controlling the entire display device 40 and a ROM (Read Only Memory) 41b in which an electromotive force monitoring control display confirmation program for operating the CPU 41a is recorded. is doing. In particular, in this embodiment, the control unit 41 monitors the electromotive force of the solar cell 43b, and when an abnormality (for example, a voltage drop) occurs in the electromotive force, the control unit 41 indicates that the electromotive force is abnormal. Generate power anomaly information. In this case, the wireless communication unit 42 transmits the electromotive force abnormality information generated by the control unit 41 to the server device 30 by wireless communication. Further, when the control unit 41 confirms that the display unit 44 has completed the display of the display data, the control unit 41 transmits the fact that the display of the screen has been completed to the server device 30 via the wireless communication unit 42.

  The wireless communication unit 34 of the server device 30 receives the electromotive force abnormality information transmitted from each display device 40, and the display unit 35 is based on the same electromotive force abnormality information received by the wireless communication unit 34. The screen displays that the electromotive force of the solar battery 43b is abnormal. Further, when the server device 30 does not receive a message indicating completion of screen display from each display device 40, the server device 30 repeats transmission of display data to the display device 40 a predetermined number of times, and further does not receive information indicating completion of screen display. At this time, the display unit 35 displays on the screen that the display device 40 is in a display error state.

Next, the operation of this electronic poster system will be described.
First, in the data input unit 32 of the server device 30, data such as display characters and images is input. In this case, if the data has already been converted into electronic data, it is input through a network or a recording medium, and if it is a document such as paper, it is input through an input device such as a scanner, and the person in charge operates the keyboard. Is input. The input data is temporarily stored in the data storage unit 33 by the control unit 31, and necessary data is appropriately read from the stored data. Further, the data stored in the data storage unit 33 is edited, re-saved, and deleted via the control unit 31 by the person in charge operating the keyboard of the data input unit 32 or the like later. In the control unit 31, data stored in the data storage unit 33 is read based on a control program or a manual command input from the data input unit 32, and the data is sent to the wireless communication unit 34. Data transmitted from the control unit 31 is transmitted to the display device 40 by the wireless communication unit 34.

  In the wireless communication unit 42 of the display device 40, data transmitted from the wireless communication unit 34 of the server device 30 is received and sent to the control unit 41. This data is sent to the display unit 44 by the control unit 41 and displayed on the screen. When the transmission of data to the display unit 44 is completed, the control unit 41 sends a message indicating that the display operation is completed to the server device 30 via the wireless communication unit 42. The wireless communication unit 34 of the server device 30 receives a notification that the display operation is completed from the display device 40 and sends it to the control unit 31. The control unit 31 confirms that the display operation on the display device 40 is completed, and the operation ends. On the other hand, if the display unit 40 does not report the completion of the display operation after a certain time, the control unit 31 transmits data again based on the control program, and repeats the number of times specified by the control program. However, if a display operation completion report cannot be obtained from the display device 40, the display unit 35 displays a display error on the display device 40, and the operation ends.

  In the display device 40, the solar battery 43b converts sunlight or illumination light (light p) in the environment in which the display device 40 is installed into an electromotive force, and the secondary battery 43a is charged. Electric power is supplied to each part of the display device 40 by the secondary battery 43a. The control unit 41 monitors the charging of the secondary battery 43a by the solar battery 43b and the power supply of the secondary battery 43a. When a power supply abnormality such as a voltage drop of the secondary battery 43a is detected, wireless communication is performed. This is reported to the server device 30 via the unit 42. The control unit 31 of the server device 30 displays on the display unit 35 that there is a power supply abnormality based on the report of the power supply abnormality from the wireless communication unit 34.

  In this electronic poster system, the power of the display device 40 is secured by the solar battery 43b, so that the secondary battery 43a does not need to be supplementarily charged with an external power supply, power consumption is reduced, and power is supplied from the outside. Unnecessary power cable is realized. In addition, since data is transmitted between the server device 30 and the display device 40 by wireless communication, a communication cable between the server device 30 and the display device 40 becomes unnecessary. In addition, since the display unit 44 of the display device 40 is configured by electronic paper, power is consumed only when the display is updated. However, power consumption during normal display is suppressed, and display is performed compared to a display device such as a liquid crystal display. The power consumption of the entire device 40 is greatly reduced. Therefore, the display device 40 has a configuration in which display update from a remote location is performed while realizing a complete cable-less operation, and a complicated update operation is not necessary. The function is flexible, for example, the display contents are sequentially updated every time. Furthermore, the display device 40 can be freely changed in installation location and moved within the area in an area where wireless communication is possible, and has a high degree of freedom in installation. Further, the display device 40 can inherit the same installation means as a conventional paper poster by reducing the thickness and weight.

  As described above, in the first embodiment, the display contents of the display device 40 are electronically updated from the remote server device 30, so that the trouble of exchanging and changing posters is reduced. Further, since the communication and power supply are completely cableless, and are thin and light like conventional paper posters, the installation form of the display device 40 can be freely selected. In addition, since the communication and power supply are completely cableless, the installation location of the display device 40 can be freely set within the wireless communication area. Further, when the server device 30 does not receive a message indicating that the screen display has been completed from each display device 40, the display unit 35 displays on the display unit 35 that the display device 40 is in a display error state. Can handle maintenance work.

FIG. 2 is a block diagram showing the electrical configuration of the main part of the electronic poster system according to the second embodiment of the present invention. Elements common to the elements in FIG. 1 showing the first embodiment are common. The code | symbol is attached | subjected.
In the electronic poster system of this example, as shown in FIG. 2, display devices 40A,..., 40A having different configurations are provided instead of the display devices 40,. In the display device 40A, the power supply unit is configured by only the solar battery 43b. The other configuration is the same as that shown in FIG.

  Usually, since advertisements and the like displayed on the display device 40A are displays for people who pass through these areas, in this electronic poster system, the display device 40A can transmit light to the extent that a person can be active in the surroundings. It is installed in a certain environment. For this reason, if it is not necessary to update the display in the dark as a use condition of the display device 40A, the configuration of the power supply unit can be omitted from the secondary battery and only the solar battery 43b. Accordingly, the entire display device 40A becomes thinner and lighter.

  This invention is an emergency bulletin board such as an advertisement display inside a station premises or a train accident, an advertisement display inside or outside a train or bus, and further a guide and commentary that can be changed according to visitors of different languages and ages in the museum. It is suitable for use when displaying. On the other hand, in the case of temporary advertisement display by borrowing the outer wall of the building, it is not necessary to secure a new power source, and it is necessary to go to a high place or a dangerous place that involves power supply construction or large-scale installation and renewal construction. Even in the installation, the labor is saved by updating the display from a remote location using radio.

It is a block diagram which shows the electric constitution of the principal part of the electronic poster system which is 1st Example of this invention. It is a block diagram which shows the electric constitution of the principal part of the electronic poster system which is 2nd Example of this invention. It is a block diagram which shows the electric constitution of the principal part of the conventional electronic poster system.

Explanation of symbols

30 Server device (part of electronic poster system)
31 Control Unit 32 Data Input Unit 33 Data Storage Unit 34 Wireless Communication Unit (Second Wireless Communication Unit)
35 Display unit 40, ..., 40, 40A, ..., 40A Display device (part of electronic poster system)
41 Control unit (electromotive force monitoring means)
41a CPU (Central Processing Unit)
41b ROM (Read Only Memory)
42 wireless communication unit (first wireless communication means)
43 Power supply unit 43a Secondary battery 43b Solar cell 44 Display unit

Claims (6)

A server device for transmitting display data by wireless communication;
An electronic poster system having a plurality of display devices that are wirelessly connected to the server device, receive the display data transmitted from the server device, and display the screen.
Each of the display devices is
An electronic poster system characterized by being configured to operate by an electromotive force of a solar cell. A server device for transmitting display data by wireless communication;
An electronic poster system having a plurality of display devices that are wirelessly connected to the server device, receive the display data transmitted from the server device, and display the screen.
Each of the display devices is
A power supply unit for operating the display device;
The power supply unit
A secondary battery,
An electronic poster system comprising: a solar battery for charging the secondary battery. A server device for transmitting display data by wireless communication;
An electronic poster system having a plurality of display devices that are wirelessly connected to the server device, receive the display data transmitted from the server device, and display the screen.
Each of the display devices is
A power supply unit for operating the display device;
The power supply unit
An electronic poster system, which is composed only of solar cells. Each of the display devices is
When the screen display of the display data is completed, the screen display is completed and transmitted to the server device by wireless communication.
The server device
When it is not received from each of the display devices that the screen display has been completed, transmission of the display data to the display device is repeated a predetermined number of times, and when it is not received that the screen display has been completed, the display device 4. The electronic poster system according to claim 1, wherein the electronic poster system is configured to display on the screen that the display is in a display error state. Each of the display devices is
An electromotive force monitoring means for monitoring the electromotive force of the solar cell and generating electromotive force abnormality information indicating that the electromotive force is abnormal when the electromotive force is abnormal;
First wireless communication means for transmitting the electromotive force abnormality information generated by the electromotive force monitoring means to the server device by wireless communication;
The server device
Second wireless communication means for receiving the electromotive force abnormality information transmitted from each display device;
2. A display unit that displays on the screen that the electromotive force of the solar cell is abnormal based on the electromotive force abnormality information received by the second wireless communication unit. 2, 3 or 4 electronic poster system.   A computer-readable electromotive force monitoring control display confirmation program for causing a computer to function as the electromotive force monitoring means according to claim 5.

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