JP2004320078A - Portable telephone for railway service - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable telephone for railway service that does not cause communication failure while ensuring sufficient illumination to light up an accident site at a dark place with sufficient lightness, can immediately cope with exhausting of a lighting power supply, if any, and surely carry out transceiving to/from a required opposite party as required. <P>SOLUTION: The portable telephone wherein a cover is freely opened/closed to a main body of the portable telephone, operation buttons are placed on an upper face of the main body, a liquid crystal display apparatus is located to a lower face of the cover, a CCD camera and an illumination light comprising high luminance white light emitting diodes are placed on the upper face, and a communication charging battery is built in the main body, is characterized in that a photographing purpose strobe lamp is provided in the upper side of the cover of the portable telephone, 8 to 10 sets of the high luminance white light emitting diodes as the illumination light are placed in parallel, three AAA batteries are built in the upper side of the cover in an easily replaceable way for the power supply of the illumination light and the photographing purpose strobe lamp, the AAA batteries are connected in series and a switch controls the lighting of the high luminance white light emitting diodes. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
[Industrial applications]
The present invention relates to a mobile phone for business use in railways, in which a camera-equipped mobile phone is provided with an illumination function, and is used as a simple illumination light. With the camera-equipped mobile phone alone, it is possible to accurately inform the concerned parties of the accident situation and the like with image information, and to accurately communicate the accident situation and the like to the concerned parties with textual information and voice information. .
[0002]
[Prior art]
Since mobile phones with cameras are widely used as a means of communication, if an accident occurs in a dark place, the accident situation can be visually checked by illuminating with a portable lighting device such as a flashlight. After confirming the above, shoot the situation with the above camera-equipped mobile phone (by turning on the strobe lamp, you can shoot a relatively clear image even in a dark place, etc.) and easily transmit this Can be. However, in the case of emergency, emergency, etc., if the user does not have the lighting equipment, the situation of the accident cannot be clearly confirmed, and the situation and scene to be transmitted cannot be appropriately specified.
[0003]
Japanese Patent Application Laid-Open No. 2001-320461 describes a mobile phone with an illumination lamp using a white light emitting diode that can cope with the above situation. This device incorporates a light emitting diode into a mobile phone as shown in FIG. 5, and can detect the brightness of the outside world and automatically turn on and illuminate as necessary. A CCD camera is arranged in the center, and white light emitting diodes are arranged on the left and right sides of the CCD camera. When the brightness of the outside world is insufficient, the white light emitting diodes are automatically turned on.
[0004]
[Patent Document 1]
JP-A-2001-320461
[Problems of the prior art]
By the way, in a dark environment without lighting such as at night or under the floor, the situation at the accident site such as a railway vehicle accident is, for example, 3 meters away (because the height of the vehicle is about 4 m and the width is about 3 m). In order to be illuminated and viewed from above, the illumination light must be considerably bright, for example, a brightness equivalent to that of a normal large flashlight (example of specification, krypton bulb, 7.2 V, 550 mA, 3960 mW). Is necessary. However, it is practically impossible to secure such a level of brightness with the illumination lamp (for example, 3.6 V, 20 mA, 72 mW per unit) using two white light emitting diodes of the above-mentioned conventional technology. If the brightness of a large flashlight is to be ensured by using or increasing the number of the batteries, the power of the battery (a lithium-ion battery built into a normal mobile phone is 3.6 V, 500 mAh, (Approximately 1800 mWh), and the voltage drop is large. Therefore, there is a possibility that the power is lost and the communication is suddenly lost. Is required, and it is no longer necessary to use it on site.
[0006]
Further, in the above-mentioned prior art, a communication rechargeable battery built in a mobile phone is also used for illumination, and illumination is performed by two white light emitting diodes (3.6 V, 20 mA per one). There is not enough light to illuminate the accident scene from a distance of about 3m in a dark place. Therefore, it cannot be used for railway services.
Furthermore, in the case of railway service (for example, carrying by a crew), it is carried in case of emergency, and it is important to be able to reliably communicate with a necessary partner when necessary. In the case of, the communication connection can be made to an unspecified number of people, so it may not be possible to receive the communication from the necessary partner when it is important, or the communication connection may be delayed. It is not suitable for railway service.
[0007]
[Problems to be solved by the present invention]
The present invention relates to a railway business mobile phone, which ensures that the lighting required to illuminate with sufficient brightness to confirm the accident site, etc., does not impair communication, and that the lighting power supply It is an object of the present invention to be able to immediately respond to this even if it is exhausted, and to make a quick and reliable communication connection to a required partner when necessary. .
[0008]
[Means for solving the problem]
[Solution 1]
Means for solving the above problems of the present invention is that a lid is openable and closable with respect to a main body of the telephone, an operation button is arranged on an upper surface of the main body, and a liquid crystal display is provided on a lower surface of the lid. The following (A) is assumed on the premise of a railway business mobile phone in which a CCD camera and a high-intensity white light emitting diode illuminating light are arranged on the upper surface of the lid, and a communication rechargeable battery is built in the main body. Or (d).
(B) a strobe lamp for photographing is provided on the upper surface of the lid,
(B) the number of high brightness white light emitting diodes is eight or more;
(C) The power source of the high-brightness white light emitting diode and the strobe lamp is configured by connecting a plurality of AAA batteries (for example, three batteries) in series, and the batteries are interchangeably arranged on the upper surface side of the lid. And built-in,
(D) Lighting of the high brightness white light emitting diode is controlled by a manual switch.
The upper surface and the lower surface mean the upper surface and the lower surface in a state where the lid is closed.
[0009]
[Action]
Since the height of the railway vehicle is approximately 4 m and the width is approximately 3 m, it is necessary to illuminate the target with a brightness of, for example, approximately 3 looks in order to visually confirm the outline of the accident situation at the accident site. (By the way, the brightness of the ground under the full moon is about 0.2 lux).
On the other hand, a liquid crystal display is arranged on the lower surface of the lid portion (overlapping surface side of the main body portion), and a plurality of AAA batteries (for example, three batteries) are juxtaposed and built in on the upper surface to provide a lighting power supply. In the configuration, in order to fit the light emitting diode within the thickness of the lid, it is necessary to make the mounting method of the white light emitting diode as small as possible.
If at least eight small-sized, high-luminance white light-emitting diodes (e.g., 3.6 V, 20 mA, and 72 mW each) are arranged in parallel as described above, the above-described illumination can be obtained. Almost can be secured.
[0010]
In addition, a voltage of 4.5 V can be obtained by connecting a plurality of AAA batteries (for example, three batteries) in series, so that a voltage necessary for lighting the high-brightness white light emitting diode is sufficiently secured, In the case of an alkaline battery type, if it is used intermittently, it can be used for about 50 hours.
In addition, since the lighting of the high-brightness white light emitting diode is operated by a manual switch, the object can be appropriately illuminated and clearly visible, irrespective of the photographing operation by the CCD camera.
Further, the power supply of the strobe lamp is also used as a power supply for lighting, is independent from a power supply for communication, and uses a AAA battery. Even if the power of the strobe lamp is exhausted, it can be quickly and easily refilled by replacing the battery.
[0011]
[Solution 2]
This solving means is based on the above-mentioned solving means 1, and is constituted by the following requirements (a) to (c).
(B) A random access memory (RAM) for abbreviated dialing is provided, and a read-only memory (ROM) for setting abbreviated dialing is provided. (B) A shortening for communication to the random access memory (RAM) is provided. Setting the dial by reading from the previously registered read only memory (ROM);
(C) The transmission / reception partner is limited to the one set in the random access memory (RAM).
[0012]
[Action]
Since communication is performed by using abbreviated dialing, telephone operations can be performed quickly and reliably even from a busy accident site. The setting of the abbreviated dialing in the random access memory (RAM) is limited to that previously registered in the read-only memory (ROM), so that only those necessary for business are set as communication targets. In addition, it is possible to simply and quickly read out and select a communication partner from a random access memory (RAM).
Also, since the communication target is limited to the one set in the random access memory (RAM), communication from other places is not confused, and the telephone line is blocked by unnecessary communication. Since the possibility of communication is eliminated, it is possible to quickly and reliably receive communication from a partner required for business.
[0013]
Embodiment
Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 conceptually shows a railway business mobile phone according to the present invention. The railway business mobile phone 1 is a general-purpose mobile phone in which a cover 3 can be freely opened and closed with respect to a main body 2. It is almost the same in external form.
That is, the mobile phone 1 for railway service according to the present invention is configured such that the lid 3 can be opened and closed about the shaft 4 with respect to the main body 2. The main body 2 is provided with an antenna 16.
[0014]
Further, on the upper surface 5 of the main body 2 (on the side of the surface overlapping with the lid), as in the case of a general-purpose mobile phone, there are provided a transmission speed dial and a reception operation button (not shown). In addition, the main unit 2 has a built-in electric circuit of a rechargeable battery, a random access memory, and a read-only memory for setting abbreviated dialing, which can be charged as a communication power supply for the same call and reading / writing as a general-purpose mobile phone. (Not shown). The setting of the abbreviated dial in the random access memory (RAM) is performed only in the railway operation control room and other necessary railway-related departments registered in advance in the read-only memory (ROM). The crew who rushed to the airport can quickly and quickly report the accident status information to the train operation command room, etc., without making an erroneous operation.
The above-mentioned lithium battery is the same as, for example, a battery of 3.6 V and 500 mAh built in a general-purpose mobile phone.
[0015]
On the other hand, a liquid crystal display 7 is disposed on the lower surface 6 of the lid 3, and a CCD camera 8 and ten high-luminance white light-emitting diodes 9 as illumination lamps 10 are arranged in parallel on the upper surface 6 ′ of the lid. Further, a strobe lamp 11 for photographing, and a detector 12 for detecting the brightness of a photographing place at an accident site and a distance to a photographing target are provided (see FIGS. 2 and 3).
On the other hand, since railcars are about 4 m high and about 3 m wide, photographing the accident site is often done from a position at least 3 m away, and the exact accident situation at that position is visually observed. For example, illumination with a brightness of about 3 lux is required, and for this purpose, high-intensity white light-emitting diodes 9 of 3.6 V, 20 mA, and 72 mW are arranged in two rows of 5 on the upper surface 6 ′ of the lid. To ensure the lighting intensity.
[0016]
In addition, a power supply 13 used for the illuminating lamp 10 and the strobe lamp 11 for photographing is built in the lid 3. The power supply 13 is provided separately from a photographed image and a power supply for transmission / reception, and three AAA batteries are connected in series so that a voltage of 4.5 V is secured (see FIG. 4). ).
Further, a cover 14 for covering the CCD camera 8 and the detector 12 and a lock button 15 for opening and closing the cover 14 are provided on a side surface of the lid 3.
[0017]
Of course, the railway business mobile phone 1 is thicker by the amount that the AAA battery is incorporated in the lid 3 in a state where the main body 2 and the lid 3 are overlapped. Since is small in diameter, the thickness of the lid portion is only slightly thicker than that of a general-purpose mobile phone, and there is no particular problem in carrying and using the mobile phone.
Next, an electric circuit system of the illuminating lamp 10 and the photographing strobe lamp 11 provided on the lid 3 will be described with reference to the block diagram of FIG.
[0018]
To the lid 3, three AAA batteries are connected in series as a power supply 13. The power supply 13 has a strobe discharge tube (generally a xenon tube) 22 for photographing and a high-luminance white light emission for illumination. Each of the diodes 9 is connected by an electric circuit.
The electric circuit of the strobe discharge tube 22 for photographing includes a power supply 13, a power switch 17 of an illumination lamp and a strobe lamp for photographing, a booster circuit (DC-DC) 18, an electrolytic capacitor 19 for the strobe discharge tube 22, a strobe discharge. A trigger circuit 20 for generating an AC current that triggers light emission of the tube 22 and a light emitting switch 21 for supplying power from the electrolytic capacitor 19 to the strobe discharge tube 22 in conjunction with a shutter of the CCD camera are provided.
Further, in the electric circuit of the ten high-luminance white light-emitting diodes 9, since the power supply voltage is 4.5V, a step-down resistor 23 for reducing this voltage to 3.6V is arranged. The step-down resistor 23 may be a constant current diode 24 as shown in FIG.
[0019]
By always carrying the above-mentioned railway business mobile phone 1 to a railway crew, even when a vehicle breakdown or accident is encountered at night or in a dark situation such as in a tunnel, the power switch 17 is operated and the lighting lamp 10 is turned on. By illuminating the accident situation, visually identifying an object to be photographed, and releasing the shutter as it is, the photographing strobe lamp 11 is turned on and the CCD camera can reliably and clearly photograph the object. Then, after the necessary image information is fetched, the fetched image information can be promptly transmitted to a predetermined train operation command room or other railway-related departments by a speed dial operation.
[0020]
The main body 2 is provided with an operation button for creating text information or a microphone for transmitting voice information, and a speaker for listening to voice information from a communication partner. (Not shown).
[0021]
In addition, since the setting of the speed dial in the random access memory (RAM) is limited to that previously registered in the read-only memory (ROM) as described above, only the setting necessary for business purposes is set. become. Therefore, the communication connection is limited to the train operation control room and the railway-related departments necessary for business, and there is no communication connection with anything else.
[0022]
【The invention's effect】
On the top of the lid of the mobile phone for railway service, an illumination light and a strobe lamp for photographing with a CCD camera and a high-intensity white light emitting diode are arranged, and the power supply and electric circuit of this illumination light and the imaging strobe lamp are covered. Since the power supply required for the illumination lamp and the strobe lamp is sufficiently secured separately from the communication power supply, the communication power supply is not consumed at all by turning on the illumination lamp and the strobe lamp. Therefore, the consumption of the communication power source provided on the main body is limited to the consumption by communication, and the consumption is suppressed as much as possible.
Since easily available AAA batteries are used, even if the power for the lighting is exhausted and the power is lost during lighting, the batteries are replaced immediately by replacing the batteries.
[0023]
In addition, since the power supply for communication is provided separately from the power supply for the lighting lamp and the strobe lamp, the lighting power supply and the strobe lamp do not consume the communication power supply. The power for communication is not lost due to lighting for a long time. On the other hand, even if the power of the illumination lamp and the strobe lamp is lost, the batteries can be replaced even if the power is lost.
Therefore, it is possible to communicate with the train operation control room or necessary railway-related departments at any time without fail in the situation of the failure or accident of the railway vehicle.
[0024]
Further, by limiting the communicable objects to those set in the read-only memory (ROM), it is possible to simply and quickly read out the other party to be communicated from the random access memory (RAM). It is possible to avoid a situation in which the communication line is blocked due to non-communication and the essential communication cannot be performed beforehand, so that communication with the other party necessary for business is always possible.
[0025]
In addition, as a mobile phone for railway service, as a terminal of a TID system (driving information display device) including communication such as a change of a train operation schedule in a CTC (train central control device) section, or more widely as a communication information network of the entire railway. It can also serve as a terminal.
[Brief description of the drawings]
FIG. 1 is a conceptual perspective view of a railway-use mobile phone according to the present invention.
FIG. 2 is a side view thereof.
FIG. 3 is a conceptual front view of the upper surface of the lid.
FIG. 4 is a block diagram of an electric circuit of a strobe lamp for photographing and an illuminating lamp connected to a power supply provided in the lid body.
FIG. 5 is a schematic perspective view of a conventional mobile phone provided with an illumination lamp and a CCD camera.
[Explanation of symbols]
1: Mobile phone for railway business 2: Body part 3: Cover part 4: Axis 5: Body part upper surface 6: Cover part lower surface 6 ′: Cover part upper surface 7: Liquid crystal display 8: CCD camera 9: High brightness white Light-emitting diode 10: Illumination lamp 11: Strobe lamp 12 for photographing: Detector 13: Power supply for strobe for lighting and photographing 14: Cover covering CCD camera and detector 15: Camera protection lock button 16: Antenna 17: Power supply for lighting and strobe Switch 18: Step-up circuit (DC-DC)
19: electrolytic capacitor 20: trigger circuit 21: light emitting switch 22: discharge tube 23 for strobe photography: step-down resistor 24: constant current diode

Claims (2)

The lid is openable and closable with respect to the main body, operation buttons are disposed on the upper surface of the main body, a liquid crystal display is disposed on the lower surface of the lid, a CCD camera lens and an upper surface of the lid are disposed. Illumination light is arranged by a high-luminance white light emitting diode, a railway business mobile phone having a built-in communication rechargeable battery in the main body,
A flash lamp for shooting is provided on the upper surface of the lid,
The high-brightness white light-emitting diode is a type having a large amount of light emission, a high efficiency, a narrow irradiation angle, and a high luminance, and the number of installations is eight or more,
A power source for the white light emitting diode and the strobe lamp is configured by connecting a plurality of AAA batteries in series, and is installed in a replaceably juxtaposed manner on the upper surface side of the lid body,
A railway-use mobile phone in which lighting of the high-brightness white light-emitting diode is controlled by a manual switch. It has a random access memory (RAM) for speed dials and a read-only memory (ROM) for speed dial settings.
The setting of the communication speed dial to the random access memory (RAM) is performed by reading from the previously registered read only memory (ROM), and
2. The mobile phone according to claim 1, further comprising: a communicable partner limited to the one set in the random access memory (RAM).

Images