JP2016076186A - Flexible type information display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flexible type information display device that can implement an information display without limiting places in a case of disasters, and is usable for a long period of time.SOLUTION: A flexible type information display device comprises a top case 2 and bottom case 3 in which a main body 1 is openable/closable, in which a display unit is arranged in the top case 2, and a power source unit, control unit and operation unit are arranged in the bottom case 3. Further, when an amount of power residual is below a prescribed value, the display unit is partially halted, or update frequency is lowered, or a display area is contracted, which in turn economizes the power.SELECTED DRAWING: Figure 1

Description

The present invention relates to a portable information display device used in a disaster.

  Due to the interruption of the communication infrastructure due to the impact of the disaster, it is impossible to know the necessary information at the time of disaster, and information is shared by pasting posts such as sticky notes on the bulletin board about the safety of the victims and information on the evacuation destination There was only. The same applies to the distribution information of daily commodities such as water and food, and only a limited number of people can know the information, and the information sharing is extremely poor.

  From the prior art, there is an electronic signboard installed in a facility designated as a refuge (see, for example, Patent Document 1). Moreover, there is a disaster prevention support package device provided with a tire for movement (see, for example, Patent Document 2). In addition, there is a portable charging / discharging device that houses a solar cell suitable as an emergency power source in a disaster or the like (see, for example, Patent Document 3).

Japanese Patent No. 5369572 (paragraphs 0010 to 0017, FIG. 1) Japanese Patent Laying-Open No. 2006-330982 (paragraphs 0003 to 0017, FIG. 1) Utility Model Registration No. 3190673 (paragraphs 0005 to 0010, FIG. 1)

  However, Patent Document 1 assumes installation at a designated evacuation site, and the installation location is limited. Patent Document 2 assumes that the rack-type disaster prevention support device has tires attached to the lower part of the rack-type disaster prevention support device, but is assumed to move on a flat route in the facility, and has outdoor portability. I can not say. Furthermore, the portable charging / discharging device of Patent Document 3 is a device for securing a power source, and there is a problem that information cannot be displayed.

  An object of the present invention is to provide a portable information display device that can display information without limiting the location at the time of a disaster and can be used for a long period of time.

The present invention
The main body consists of an upper and lower case that can be opened and closed.
A display unit is arranged in the upper case,
A power supply unit, a control unit, and an operation unit are arranged in the lower case,
The power supply unit and the control unit are arranged surrounded by a buffer material,
The operation unit has an external connection unit for performing communication with the outside,
The external connection unit is connected to the control unit, acquires various information from the outside,
The display unit includes a first display element and a second display element,
The first display element displays nationwide information transmitted over a wide area,
The second display element displays local information directly connected to local life,
A remaining capacity measuring unit for measuring the remaining capacity of the power supply unit;
Based on the measurement result of the remaining capacity measurement unit, the display operation of the display unit is controlled,
When the remaining capacity of the power supply unit becomes a predetermined value or less by the remaining capacity measuring unit,
When the driving of the second display element is stopped, the area information is displayed on the first display element, or when the remaining capacity of the power supply section becomes a predetermined value or less by the remaining capacity measuring section, the first display element is displayed. The update frequency of the two display elements is lower than the first display element update frequency;
The display unit is configured using a memory display member.

  As described above, according to the present invention, when a portable information display device is used, the information display device is stored in a portable case that is easy to carry and is robust, so that it can be used without any limitation in the event of a disaster. It is possible to easily collect information by using electronic paper with low power consumption for the display part, further dividing the display part and displaying the related information of the whole country and region, and divided display according to the remaining battery level The important information display time can be extended by extracting and displaying the important information from the information.

It is a perspective view of a portable information display device. It is the upper side figure and side view of a portable information display apparatus. It is a block diagram of a portable information display device. It is a top view of a lower case for a portable information display device. It is sectional drawing of the upper case of a portable information display apparatus. It is sectional drawing of the lower case of a portable information display apparatus. It is a figure showing the screen division of the display part. It is a figure showing the display part at the time of battery remaining low. It is a figure showing the display part at the time of battery remaining low. It is a block diagram with a power supply voltage detection part of a portable information display apparatus. It is the figure showing the display part which set the division and performed the information display.

The first embodiment will be described below.
FIG. 1 is a perspective view of a portable information display device of the present invention, and FIG. 2 is a top view and a side view. As shown in FIG. 1, the portable information display device of the present invention has a mechanism in which a main body 1 can be opened and closed vertically, and is composed of an upper case 2 and a lower case 3. The electronic paper display substrate 43 is fixed by a fixing member. Here, the arrow Y 1 indicates the upward direction in the upper case 2, and the arrow Y 2 indicates the upward direction in the lower case 3.
The electronic paper display substrate 43 is provided with a plurality of display elements having memory properties, for example, electronic paper 11. As an example of the arrangement, two rectangular electronic papers 11 are arranged close to each other in the direction in which the long side is perpendicular to the vertical direction of the upper case. Moreover, the illumination 12 (12-1-4) which illuminates the electronic paper 11 is arrange | positioned at each right and left of the electronic paper 11. FIG.

  The illumination 12 is an illumination element that illuminates the two electronic papers 11, and is configured by an LED or a light bulb. Unlike the liquid crystal display device, the electronic paper does not emit light because it does not include a backlight. Accordingly, since the display of the electronic paper cannot be read in a dark environment, the illumination 12 is arranged in the proximity position to illuminate the surface of the electronic paper brightly. The number of the illuminations 12 may be changed depending on the brightness of the illumination element and the illumination light irradiation range. Further, the arrangement positions of the illumination 12 may be arranged above and below the electronic paper 11. Further, by arranging the light guide plate 42 (see FIG. 6) on the front surface of the electronic paper 11 and guiding the illumination light from the illumination 12 to the entire surface of the electronic paper, it is possible to illuminate evenly.

The lower case 3 accommodates a power supply unit 22, a battery unit 27, a control unit 23, and a storage unit 24 surrounded by a buffer material 40 (see FIG. 6), and a plurality of operation panels 5 are provided in the opening of the lower case 3. The fixing member 41 is fixed. On the operation panel 5, an operation unit 20 and an external connection unit 21 are arranged.
The electronic paper display substrate 43 and the operation panel 5 can be detached from the main body 1 by loosening the fixing member 41.

FIG. 3 is a system block diagram of the present embodiment.
The power source unit 22 selects a power source from either an external power source (not shown) connected to the external power source input unit 26 or a battery unit 27 that includes a plurality of batteries and is included in the main body 1, and boosts or steps down (not shown) The voltage is converted into a voltage for operation of the control unit 23 and supplied by the circuit. The battery unit 27 sets a voltage and a current so as to satisfy the operation condition of the control unit by connecting a plurality of alkaline dry batteries in series and parallel in consideration of the availability at the shelter. When the main body 1 is opened and closed and placed on a desk or the like, the lower case 3 including the total weight of the battery is heavier than the upper case 2, so that the main body 1 can be stably installed without falling down. Of course, the battery is not limited to this, but may be a lithium-ion battery, a lead-acid battery, a rechargeable dry battery such as nickel metal hydride, a manganese dry battery, etc. does not change. When a rechargeable battery is used, when the external power supply is connected to the external power supply input unit 26, a circuit for charging the rechargeable battery of the battery unit 27 with a current from the external power supply is provided in the power supply unit 22. May be.

  4 is a top view of the operation panel 5, in which 8 is a power switch, 9 is a lighting switch, 21 is an external connection portion, and 20A and 20B are operation switches.

  The control unit 23 is activated by turning on the power switch 8 on the operation panel 5, and outputs a control signal while supplying power to the storage unit 24, the electronic paper 11 that is the display unit 25, and the operation unit 20, Control the behavior. The control unit 23 is also connected to a mobile phone connection terminal, a disaster prevention wireless device connection terminal, a network port, a USB port, an RS232C terminal, and the like installed on the operation panel 5 as the external connection unit 21. When the control signal is activated, control signals are supplied to these terminals to communicate with external devices connected to the terminals, and information obtained from the external devices can be displayed on the electronic paper 11. Furthermore, by connecting a large monitor or the like to the image output terminal of the operation panel 5, the received information can be displayed on an external display device, and by connecting an input device such as a keyboard to the USB port, text can be displayed. It becomes possible to input information. The storage unit 24 is a memory that stores information obtained from an external device and information acquisition date and time, and can continue to store information even when the power is turned off.

  Further, the operation panel 5 is provided with an operation unit 20 for operating the operation of the main body 1 and has two upper and lower switch groups. The upper switch group 20A is a button for operating the display of the electronic paper 11A, and the lower switch group 20B is a button for operating the display of the electronic paper 11B, and performs operations such as selection of displayed information, suspension of screen display, and forced reception of information. Can do. In order to easily recognize the function of the button, for example, a stop mark for manual feed, a right arrow mark for automatic feed, and a down arrow mark for forced reception are shown as part of the button.

  The information displayed on the display unit 25 is information related to the disaster situation and evacuation life required by the disaster victim. For example, information on areas damaged by the disaster, transportation operation information, distribution information on daily commodities, medical care, etc. Information, power information, and the like. In addition, weather forecasts and information related to entertainment (for example, sports news) are also displayed at a reduced frequency. Further, when displaying information, in order to determine whether the information is old information or the latest information, a function capable of writing the update time and the information source is provided.

The display unit 25 has electronic papers 11A and 11B installed one above the other, and the same information may be divided and displayed on two electronic papers 11. For example, the top is national information and the bottom is regional information. In addition, one electronic paper 11B displays information (regional information) directly related to the lives of the disaster victims in the region including the current location, and the other displays information (national information) transmitted to the wide area, The viewer can easily select information. Specifically, the nationwide information includes wide-area operation status of transportation facilities, wide-area weather information, information on the progress of government disaster countermeasures, information on entertainment (for example, sports news), and the like. In addition, regional information includes information on transportation operations in the area including the current location, information on restoration of facilities (electricity, gas, water), information on victims housed in other shelters, and information on water and food distribution , Doctor dispatch information, local warnings and warnings. When each information is displayed, the information has an expiration date, so that information unnecessary for the user can be eliminated, and new information can always be displayed efficiently.

  The communication device connected to the external connection unit 21 is, for example, a disaster prevention radio device or a satellite mobile phone. A disaster prevention radio is an example of a disaster prevention radio in a prefecture, where information about disasters is transmitted and received between a prefectural office, which is a base station, and a terminal station using radio in a specific frequency band. An emergency call from is also possible. As information to be sent and received, remote monitoring with simple moving images and still images, communication of facsimile and text information is possible in addition to voice, and transportation operation information, distribution information of daily commodities, medical information, and power information are obtained. Can do.

  In the event of a disaster, many victims try to confirm the safety of their families, etc., so the mobile phone line becomes saturated and reliable information cannot be exchanged. On the other hand, since satellite mobile phones have few users, communication lines can be secured, and data and voice can be transmitted and received even in mountainous areas where mobile phones are difficult to connect because they communicate via satellite. Therefore, by connecting a satellite mobile phone as an external device, it is possible to reliably access various databases. In addition to information obtained from disaster prevention radio, in addition to information such as the safety of victims and shelters Wide area information such as weather and traffic regulations.

  If there is an internet line that can be used near the main body 1, information equivalent to that of a satellite mobile phone can be obtained by connecting the internet line to the network port of the external connection unit 21 by wire.

  Furthermore, by connecting an external device, not only information acquisition but also transmission is possible. For example, the number of victims housed in shelters, names, health status, stockpile and distribution requirements for food items, contact with life-threatening emergencies, requests for doctor dispatch, disaster site photos, etc. You can send and request a response. Along with this, since the transmission history of the request and the acceptance status at the base station are displayed on the electronic paper 11B, it is possible to indicate that the request of the victim is being processed without delay. The effect of calming is obtained.

  In disaster-stricken areas, roads often break and can only be moved on foot, and evacuation shelters are temporarily set up, so the space is small and power cannot be secured. Under such circumstances, the portable information display device is extremely useful, but in the process of transporting the portable information display device to the refuge, vibration and impact are often applied to the main body 1. A general-purpose computer and a display device are mounted in the apparatus, and the apparatus easily breaks down depending on how vibrations and shocks are applied. However, because it is a device that cuts the lifeline of the disaster victims, it must be avoided that it can not be used if it comes to the site.

  Therefore, in the portable information display device according to the present invention, the exterior color is, for example, red or orange with high visibility so that it can be distinguished from other devices, and the material is a resin or metal that is resistant to external impact and easy to mold, For example, it is composed of reinforced plastic, aluminum, stainless steel, and duralumin. In addition, the main body 1 is opened by an impact or stress, and has a hook 6 that can hold the main body 1 in a closed state so that the display unit 25 and the operation unit 20 are not damaged.

  FIG. 5 is a cross-sectional view taken along line A-A ′ in the lower case 3 of FIG. 4. The battery unit 27, the control unit 23, and the storage unit 24 are fixed to the inner bottom surface of the lower case 3 together with the cushioning material 40, and the operation panel 5 is provided with the operation unit 20 and the external connection unit 21. A substrate 30 that transmits an electrical signal from the control unit 23 to the operation unit 20 and the external connection unit 21 is disposed near the operation unit 20 on the back side.

FIG. 6 is a cross-sectional view taken along the line BB ′ in the upper case 2 of FIG. The electronic paper 11 is attached to the electronic paper display substrate 43, and the electronic paper display substrate 43 is fixed to the upper case 2 together with the buffer material 40 using a plurality of fixing members 41. Further, a light guide plate 42 is disposed on the front surface of the electronic paper 11 so that the light from the illumination 12 is guided to the surface of the electronic paper 11 so that the displayed content can be read even in a dark environment.
As shown in FIGS. 5 and 6, by disposing the cushioning material 40, it is possible to reduce the impact applied to the case of the main body 1 and prevent the destruction of each part.

Next, a second embodiment will be described.
The case where national information and regional information are displayed on the two electronic papers 11A and 11B of the display unit 25 will be described below as an example.

  Since the portable information display device according to the present invention incorporates a battery as a power source as described above, the portable information display device can also be used during a power outage or in an evacuation center that is restricted in power use. However, in the case of a large-scale disaster, there is a possibility that power outages and power usage restrictions will continue for a long time, and it is necessary to control the current consumption in order to operate the portable information display device as long as possible.

  FIG. 10 is a block diagram of a system according to the second embodiment. The difference from FIG. 3 is that a power supply voltage detection circuit 29 connected to the power supply unit 22 and the control unit 23 is provided.

  The power supply voltage detection circuit 29 compares the power supply voltage with the voltage threshold value D and the voltage threshold value E, and monitors whether the power supply voltage falls below the threshold values D and E. Here, the relationship of the voltage threshold is voltage threshold D> voltage threshold E. Specifically, the power supply voltage before current consumption, that is, the initial voltage is set to F, the minimum operating voltage of the main body 1 is set to a voltage threshold E (hereinafter referred to as E), and the voltage between F and E is set to the voltage. It is set to a threshold value D (hereinafter referred to as D). (F + E) / 2 = D

  If the power supply voltage is higher than D, the respective information is displayed on the electronic papers 11A and 11B. If the power supply voltage is higher than E and lower than D, the electronic paper 11B displaying the region information is continuously operated, The control unit 23 controls to erase the display of the electronic paper 11A displaying the nationwide information and stop the operation. Further, when the power supply voltage becomes E or less, the display of the two electronic papers 11A and 11B is erased and the operation is stopped.

  In other words, when the remaining amount of power is low, the information (regional information) that is directly related to the lives of the disaster victims is displayed and the other information display is stopped to reduce the current consumption and reduce the operating period. extend. Specifically, the regional information related to the disaster of the electronic paper 11B is preferentially displayed, and the nationwide information of the electronic paper 11A and sports news with low importance are reduced, the update frequency is stopped, the update is stopped, or the display is deleted. Do one of these. When updating of the display information is stopped or the display is erased, a single display of white or black may be performed in order to prevent burning.

Even if the update of the electronic paper 11A is stopped while the information about the remaining battery level and the estimated time until the battery replacement, the display of the battery replacement procedure, etc. are left as shown in FIG. Good. Furthermore, if the information is necessary for the victim while being nationwide information, the electronic paper 11A may be displayed with a lower frequency of update. For example, date, time, weather and the like.
Since electronic paper can be operated by dividing the screen and display information, as shown in Fig. 11, the operation category is set in the lower right corner of the screen, etc. By displaying information necessary for the user and stopping the operation of the other sections, power consumption can be reduced.

  The above processing also provides the following secondary effects. Since the number of electronic paper 11 on which information is displayed is reduced from two to one, the administrator of the device can know the state of the power supply voltage reduction without preparing a separate voltage warning lamp to notify that the power supply voltage has decreased. Therefore, it is possible to promote the procurement or charging of the replacement battery.

  By controlling the illumination 12 together with the electronic paper 11, the current consumption can be further reduced. Specifically, if the power supply voltage is higher than D, information is displayed on the two electronic papers 11, and the illumination units 12-1, 12-2, 12-3 that illuminate the electronic papers 11A, 11B in an environment where the surroundings are dark are provided. , 12-4 are all lit. When the power supply voltage is greater than E and less than or equal to D, the electronic paper 11B displaying the area information and the lights 12-3 and 12-4 illuminating the area are operated, and the other electronic paper 11A displaying the nationwide information is displayed. The controller 23 controls the display 12 to be erased, the drive signal is stopped, and the lights 12-1 and 12-2 are turned off. Further, when the power supply voltage becomes E or less, the display of the two electronic papers 11A and 11B is erased, and all of the lights 12-1 to 12-4 are turned off.

  In the above description, an intermediate voltage between F and E is set to the voltage threshold D. However, if it is a voltage between F and E, it may be set to D. Further, although the minimum operating voltage of the main body 1 is set to E, E may be a voltage obtained by adding 5 to 10% to the minimum operating voltage of the main body 1.

  Furthermore, there may be three or more voltage thresholds for comparing the power supply voltages, and the operating conditions of the electronic paper 11 and the illumination 12 may be defined more finely as the battery voltage decreases. Specifically, since the electronic paper can be operated by dividing the screen and display information, the threshold voltage is set more finely, and the electronic paper 11A, step by step, according to the voltage drop amount of the battery power supply, The operation classification of 11B is narrowed and information with high importance is displayed preferentially. At that time, the illumination 12 that irradiates the section in which the electronic papers 11A and 11B are operating is turned on, but the other illuminations 12 are turned off to reduce the current consumption.

When the operation category of the electronic paper 11 is gradually reduced according to the amount of decrease in the battery voltage, an operation category that is restricted in stages is set in the electronic paper 11A that displays the national information, and the regional information The electronic paper 11 </ b> B that displays “” may not be set as a category.
There is a lot of important information in the area, and narrowing the display operation category will reduce the number of information to be displayed and is not beneficial to the victims. Therefore, only for the display of nationwide information, the display category is set to be narrowed in stages according to the amount of decrease in battery voltage, but the area information may be set to be fully displayed.

  Up to this point, the explanation has been given using an example in which two sheets of electronic paper are installed. However, three or more sheets of electronic paper may be installed, and even in that case, when the battery power drops below the set threshold voltage. Can continue to display electronic paper that displays information directly related to the lives of the victims, while other electronic papers can stop displaying information, reducing current consumption and extending the operating period. is there.

Moreover, although the example which displays national information on the electronic paper 11A and regional information on the electronic paper 11B has been described, the regional information may be displayed on the electronic paper 11A and the national information may be displayed on the electronic paper 11B. Furthermore, the national information may include sports news and wide area weather information.

  The portable information display device of the present invention is capable of displaying disaster information and disaster prevention information such as clothing, food and living at the time of a disaster while being portable, and is found in comparison with other devices because it has a characteristic color in an emergency. Easy to carry because it has a handle 7 and the main body 1 is light in weight. Furthermore, by carrying the shoulder belt on the left and right of the main body 1 with both shoulders, both hands can be handled freely, making it easier to carry. Become.

DESCRIPTION OF SYMBOLS 1 ... Main body 2 ... Upper case 3 ... Lower case 5 ... Operation panel 6 ... Hook 7 ... Handle 8 ... Power switch 9 ... Illumination switch 11 ... Electronic Paper 11A ... Electronic paper (upper part)
11B ... Electronic paper (bottom)
12 ... Illumination 12-1, 2 ... Illumination (upper part)
12-3, 4 ... Illumination (lower part)
DESCRIPTION OF SYMBOLS 20 ... Operation part 21 ... External connection part 22 ... Power supply part 23 ... Control part 24 ... Memory | storage part 25 ... Display part 26 ... External power supply input part 27 ... Battery Portion 29 ... Power supply voltage detection circuit 20A ... Upper switch group 20B ... Lower switch group 30 ... Substrate 40 ... Buffer material 41 ... Fixing member 42 ... Light guide plate

Claims (9)

The main body consists of an upper and lower case that can be opened and closed.
A display unit is arranged in the upper case,
A portable information display device, wherein a power supply unit, a control unit, and an operation unit are disposed in the lower case. The portable information display device according to claim 1, wherein the power supply unit and the control unit are disposed surrounded by a buffer material. The operation unit has an external connection unit for performing communication with the outside,
The portable information display device according to claim 1, wherein the external connection unit is connected to the control unit and acquires various kinds of information from the outside. The display unit includes a first display element and a second display element,
The first display element displays nationwide information transmitted over a wide area,
The portable information display device according to claim 3, wherein the second display element displays regional information directly connected to a local life. A remaining capacity measuring unit for measuring the remaining capacity of the power supply unit;
The portable information display device according to claim 4, wherein a display operation of the display unit is controlled based on a measurement result of the remaining capacity measuring unit. When the remaining capacity of the power supply unit becomes a predetermined value or less by the remaining capacity measuring unit,
The portable information display device according to claim 5, wherein driving of the second display element is stopped and the area information is displayed on the first display element. When the remaining capacity of the power supply unit becomes a predetermined value or less by the remaining capacity measuring unit,
The portable information display device according to claim 5, wherein the update frequency of the second display element is lowered or the update is stopped. When the remaining capacity of the power supply unit becomes a predetermined value or less by the remaining capacity measuring unit,
6. The portable information display device according to claim 5, wherein a display operation area of the second display element is reduced. 9. The portable information display device according to claim 1, wherein the display unit is configured using a memory display member.

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