JP6950602B2 - Security terminal device - Google Patents

Description

The present invention relates to a security terminal device.

A security terminal device installed on a mounting surface such as a wall is known (for example, Patent Document 1). This security terminal device reads the identification information from the IC card in a non-contact manner, and when the IC card is authenticated as legitimate, displays that fact on the LED display device. Such devices are often accompanied by a display indicating the operating state of the security system. For example, when the security system is in a vigilant state, characters such as "warning" are displayed on the surface of the IC card so that it can be seen that the security system is in a vigilant state (hereinafter referred to as "character display, etc."). Sometimes. Such a display may be configured such that the character display or the like is directly lit so that it can be visually recognized day or night, or it is illuminated by a light source and lit brightly.

Japanese Unexamined Patent Publication No. 2014-157550

In recent years, there has been a demand for thinner security terminal devices. However, when the character display or the like is configured to be directly lit, the light emitting device is arranged on the back surface of the character display or the like, and there is a problem that it is difficult to reduce the thickness of the security terminal device. On the other hand, when the light from the light source is guided to the character display or the like by using a light guide plate and turned on, the brightness of the character display or the like becomes insufficient as compared with the case where the light source is arranged on the back surface of the character display or the like. Cheap. The security terminal device may be installed outdoors, and it may be difficult to see the character display or the like in sunlight.

The present invention has been made in view of the above-mentioned problems, and can be realized as the following forms.

(1) According to one embodiment of the present invention, a security terminal device attached to the surface of a structure is provided. This security terminal device is provided with an authentication unit, a case for accommodating the authentication unit, a light source plate arranged inside the case in parallel with the back surface of the case, and one end of the light guide plate. The first is provided with a light source that emits light that spreads inside the light plate, and a display unit that displays light by passing light from the light source through the light guide plate to the case and guiding the light to the outside of the case. The display unit includes characters, and the area of the region through which light passes in the first display unit is larger than the area of the region through which light passes in the second display unit, from the light source to the second display unit. The distance is shorter than the distance from the light source to the first display unit.

According to this form, the distance from the light source to the second display unit is shorter than the distance from the light source to the first display unit, so that the brightness of the second display unit is brighter than the brightness of the first display unit. As a result, when the security terminal device is exposed to sunlight, it becomes easier to recognize that the second display unit is lit brightly than to recognize the characters in the first display unit.

(2) In the above embodiment, a reflecting portion that reflects at least a part of the light from the light source toward the surface of the case may be provided on the side of the light guide plate opposite to the case side. According to this form, the reflecting unit tends to brighten the display unit by reflecting the light toward the display unit and the display unit.

(3) In the above form, the reflective portion may be a metal film or plate. According to this form, since the reflecting portion is a metal film or plate, the reflecting portion can be easily formed and light can be reflected.

(4) In the above embodiment, the reflective portion may be a frosted glass-like uneven shape formed on the side of the light guide plate opposite to the case side. According to this form, by polishing the side of the light guide plate opposite to the case side, a reflective portion can be easily formed and light can be reflected.

(5) In the above embodiment, a plurality of the light sources are provided according to the number of the characters or the length of the character string formed by the characters, and the second display unit has a plurality of child display units according to the number of characters. The space between the plurality of child display units is located on a line connecting the light source and the character. According to this form, on the line connecting the light source and the character, there is a portion between a plurality of child display units, that is, a portion where light does not leak. Since the light that brightens the first display unit does not leak from the second display unit, it does not affect the brightness of the characters in the first display unit.

The present invention can be realized in various forms, for example, in the form of a security terminal device, an external terminal device for entry / exit management, an authentication device, and the like.

It is explanatory drawing which shows the security terminal device for authentication attached to the outdoor side surface of a building. It is explanatory drawing which shows the cross section in the vicinity of the 1st display part and the 2nd display part of a security terminal apparatus. It is explanatory drawing which shows the state when the 1st display part and the 2nd display part are seen in the alert state. It is explanatory drawing which shows the state when the 1st display part and the 2nd display part are seen in the alert state in 2nd Embodiment. It is explanatory drawing which shows the state when the 1st display part and the 2nd display part are seen in the alert state in 3rd Embodiment. It is explanatory drawing which shows the 4th Embodiment.

-First embodiment:
FIG. 1 is an explanatory diagram showing an authentication security terminal device 10 used for authentication in a security system that manages the security of a building or the like. The security terminal device 10 is attached to the outdoor surface 100 of a structure such as a building. The surface 100 is, for example, the side surface of a wall or a pillar outside the building. The security terminal device 10 houses the authentication device 50 inside the case 20. A display unit 30 and a warning state switching button 55 are provided on the surface of the case 20. An area 52 over which the ID card is held is displayed on the surface of the case 20, and an authentication device 50 is provided at a position on the back surface of the area 52. When a person who intends to enter the inside of the building holds the ID card over the area 52 corresponding to the authentication unit 50, the authentication unit 50 authenticates the ID card and determines whether or not to enter the inside of the building. As the authentication unit 50, in addition to the authentication unit that authenticates the ID card, a biometric authentication unit that authenticates a living body such as a fingerprint, a palm print, a vein, and a face may be used. The display of the area 52 can be omitted.

The alert state switching button 55 is a button for switching between the alert state and the non-alert state of the security system. Here, the alert state is a state set when there are no people in the building. In the alert state, the security terminal device 10 detects the opening and closing of the door with, for example, a door sensor (not shown), and uses, for example, an infrared sensor (not shown) to determine whether or not a person is present in the building. Detect. An infrared sensor is used because a person is a heat source, and if infrared rays are used, a person who is a heat source can be detected, and an object other than a person who is not a heat source is not detected. A sensor other than the infrared sensor may be used as long as it is a sensor that detects only a person and does not detect anything other than a person. In the alert state, if the door opens or closes, or if an abnormality occurs such that there is a person even though the inside of the building should be unmanned, the security terminal device 10 has an abnormality in the control center of the security system. To report. In the non-alert state, the security terminal device 10 manages admission by authentication.

Switching between the alert state and the non-alert state of the security system by the alert state switching button 55 is performed as follows. For example, when a person holds the ID card over the authentication unit 50 and presses the alert state switching button 55 within a certain period of time, the alert state and the non-alert state of the security system are switched. The order in which the ID card is held over the authentication unit 50 and the order in which the alert state switching button 55 is pressed are exchanged, and the ID card is placed on the authentication unit 50 within a certain period of time after the person presses the alert state switching button 55. It may be configured to switch between the alert state and the non-alert state by holding it over. For example, the last person leaving the building switches from the non-alert state to the alert state, and the first person to enter the building switches from the alert state to the non-alert state.

When the inside of the building is switched to the alert state, the display unit 30 lights up brightly. The final resident of the building can confirm that the inside of the building has been switched from the non-alert state to the alert state by seeing the display unit 30 illuminate brightly. In addition, the first visitor to the building recognizes that the inside of the building is in a warning state when the display unit 30 lights up brightly, and the inside of the building does not light up because the display unit 30 does not light up. It can be confirmed that the alert state has been switched to the non-alert state. Other users can determine whether the inside of the building is in a vigilant state or a non-alert state depending on whether or not the display unit 30 is brightly lit.

The display unit 30 includes a first display unit 35 and a second display unit 40. The first display unit 35 displays characters. Characters are codes used as one of the means of communicating language. Characters include, for example, ideographic and phonetic characters, as well as pictograms, pictograms, and hieroglyphs. However, the characters are not limited to these. The second display unit 40 is, for example, an elongated rectangle. The area of the region through which light passes in the first display unit 35 is larger than the area of the region through which light passes in the second display unit 40. That is, the area of the area where the first display unit 35 is brightly lit in the alert state is larger than the area of the area where the second display unit 40 is brightly lit.

FIG. 2 is an explanatory view showing a cross section in the vicinity of the display unit 30 of the security terminal device 10. The security terminal device 10 includes a surface plate 21, a display unit forming unit 22, a light guide plate 25, a reflecting unit 27, a light source 60, and a substrate 70. From the front surface side of the case 20 of the security terminal device 10, the surface plate 21, the display unit forming unit 22, the light guide plate 25, the reflecting unit 27, and the substrate 70 are arranged in this order.

The surface plate 21 is made of a transparent plate such as glass, and protects the display portion forming portion 22 on the inner side so that the display portion forming portion 22 is not scratched, and the appearance of the case 20 is good. do. The surface plate 21 may be made of a material other than glass, for example, a transparent resin such as an acrylic resin.

The display unit forming unit 22 is formed of a member that does not transmit light, and is a member for forming the display unit 30. The display portion forming portion 22 is formed, for example, by printing on the back surface of the front surface plate 21. The display unit 30 is formed as an opening in which printing is not performed on the back surface of the front surface plate 21.

The light guide plate 25 is a transparent plate substantially parallel to the back surface of the case 20, that is, the back surface of the front surface plate 21. The light guide plate 25 is made of a highly transparent substance, for example, an acrylic resin. The light guide plate 25 may be made of a resin other than the acrylic resin, and may be made of a highly transparent material such as glass.

The light source 60 is attached to the substrate 70 and is arranged at one end of the light guide plate 25. The light source 60 emits light substantially parallel to the surface plate 21 with respect to the light guide plate 25. The light source 60 is composed of, for example, a light emitting diode. The light from the light source 60 spreads within a range of a certain angle. The distance from the light source 60 to the second display unit 40 is shorter than the distance from the light source 60 to the first display unit 35.

The reflecting portion 27 is provided on the side opposite to the display portion forming portion 22 of the light guide plate 25. The reflecting portion 27 is formed, for example, by providing a metal film or a metal plate on the substrate 70 side of the light guide plate 25. Light passing through the light guide plate 25 can be reflected by a metal film or plate. As the metal, a metal having a high ability to reflect light such as aluminum and silver is preferable. A metal film may be formed by depositing or plating a metal on the substrate 70 side of the light guide plate 25, or a paint containing fine metal powder may be applied to form the metal film. A film containing metal may be attached. Diffuse reflection of light may be promoted by forming irregularities on the metal, and the light may be guided to the display unit 30. Further, the reflective portion 27 may be formed by forming frosted glass-like irregularities by polishing the substrate 70 side of the light guide plate 25.

The light emitted from the light source 60 spreads while passing through the light guide plate 25, and a part of the light hits the reflecting portion 27. The light that hits the reflecting portion 27 is diffusely reflected, and a part of the light is reflected toward the display portion forming portion 22. Here, when the reflected light is directed to the display unit 30, the light passes through the opening forming the display unit 30 and leaks to the outside of the surface plate 21. That is, the display unit 30 allows the light from the light source 60 to pass through the light guide plate 25 to the case 20 and guide the light to the outside of the case 20. As a result, when the security terminal device 10 is viewed from the outside, the display unit 30 appears to be brightly lit. The light other than the light directed to the display unit 30 is repeatedly reflected between the display unit forming unit 22 and the reflecting unit 27, and the light other than the attenuation absorbed by the display unit forming unit 22 and the reflecting unit 27 is reflected. Finally, it goes out through the opening forming the display unit 30. The light from the light source 60 also spreads to the display portion forming portion 22 side of the light guide plate 25. Therefore, in addition to the light reflected by the reflecting unit 27, the light that has spread from the light source 60 to the display unit forming unit 22 side also exits from the opening that forms the display unit 30.

FIG. 3 is an explanatory diagram showing a state when the first display unit 35 and the second display unit 40 are viewed in the alert state. In FIG. 3, for convenience of illustration, the portion where light leaks and shines is filled. Further, FIG. 3 illustrates the light emitted from the light source 60 and the light source 60. In the present embodiment, the security terminal device 10 includes a plurality of light sources 60 according to the number of characters included in the first display unit 35. The security terminal device 10 may include a plurality of light sources 60 according to the length of the character string formed by the characters.

In FIG. 3, the distance L1 from the light source 60 to the first display unit 35 is shown by the distance from the light source 60 to the center of the first display unit 35 in the direction in which the light travels, and the second display in the direction in which the light travels from the light source 60. The distance L2 to the unit 40 is shown as the distance from the light source 60 to the center of the second display unit 40. However, the distance from the light source 60 may be the distance from the first display unit 35 or the second display unit to the side closest to the light source 60 or the side farthest from the light source in the direction in which the light travels. In the present embodiment, the distance L1 from the light source 60 to the first display unit 35 is longer than the distance L2 from the light source 60 to the second display unit 40. Therefore, the light emitted from the light source 60 spreads over the entire characters of the first display unit 35. As a result, the characters in the first display unit 35 are displayed with uniform brightness. In particular, at night or when the security terminal device 10 is installed indoors, the characters of the first display unit 35 are displayed with sufficient brightness by the light of the light source 60. Therefore, the user of the security terminal device 10 can easily know whether the inside of the building is in the alert state or the non-alert state.

Here, since the security terminal device 10 is attached to the outdoor surface 100 of the building, sunlight may hit the security terminal device 10. Since the illuminance when exposed to sunlight is high, when the sunlight hits the security terminal device 10, even if the first display unit 35 is brightly lit, the characters on the first display unit may not be recognized. Even in this case, however, since the distance from the light source 60 to the second display unit 40 is shorter than the distance from the light source 60 to the first display unit 35, the brightness of the second display unit 40 is the brightness of the first display unit 35. Brighter than the brightness of. Therefore, it can be easily determined whether or not the second display unit 40 is lit brighter than that of the first display unit 35. Therefore, even outdoors in bright daytime, a person can easily determine whether the second display unit 40 is lit brightly, and easily know whether the inside of the building is in a alert state or a non-alert state. be able to. The light source 60 may be blinked.

-Second embodiment:
FIG. 4 is an explanatory diagram showing a state when the first display unit 35 and the second display unit 40 are viewed in the alert state in the second embodiment. In the second embodiment, the second display unit 40 is divided into a plurality of child display units 42, and is located between the two child display units 42 on a line connecting the light source 60 and the characters of the first display unit 35. The difference is that 43 is located.

Even in the second embodiment, as in the first embodiment, by increasing the distance from the light source 60 to the first display unit 35, the light emitted from the light source 60 is expanded, and the characters of the first display unit 35 are displayed. Can be displayed with even brightness. Further, since the distance from the light source 61 to the second display unit 40 is shorter than the distance from the light source 60 to the first display unit 35, the brightness of the second display unit 40 is larger than the brightness of the first display unit 35. bright. Therefore, the user of the security terminal device 10 can easily know whether the inside of the building is in the alert state or the non-alert state.

Further, in the second embodiment, since 43 is located between the two child display units 42 on the line connecting the light source 60 and the characters of the first display unit 35, the light that brightens the first display unit 35. Does not leak from the child display unit 42 of the second display unit 40. Therefore, even if light leaks from the child display unit 42, it does not affect the brightness of the characters in the first display unit 35.

-Third embodiment:
FIG. 5 is an explanatory diagram showing a state when the first display unit 35 and the second display unit 40 are viewed in the alert state in the third embodiment. The third embodiment is different from the first embodiment and the second embodiment in that only one light source 60 is provided. Even in the third embodiment, as in the first embodiment, by increasing the distance from the light source 60 to the first display unit 35, the light emitted from the light source 60 is expanded, and the characters of the first display unit 35 are displayed. Can be displayed with even brightness. Further, since the distance from the light source 60 to the second display unit 40 is shorter than the distance from the light source 60 to the first display unit 35, bright light leaks from the second display unit 40. Therefore, it can be easily determined whether or not the second display unit 40 is shining.

-Fourth embodiment:
FIG. 6 is an explanatory diagram showing a fourth embodiment. The difference from the first embodiment shown in FIG. 2 is that the light guide plate 25 is provided with a reflecting surface 28 on the substrate 70 side at a position corresponding to the display unit 30 to reflect the light from the light source 60 toward the display unit 30. The point is different. In the fourth embodiment, the light from the light source 60 is reflected by the reflecting surface 28 to guide the light toward the display unit 30. The reflective surface 28 can be formed in the same manner as the reflective portion 27, for example, by forming a concave shape corresponding to the reflective surface 28 on the substrate 70 side of the light guide plate 25. For example, the reflective surface 28 may be formed by depositing or plating a metal on the concave portion, or the reflective surface 28 may be formed by applying a paint containing fine metal powder. A film containing metal may be attached to form the reflective surface 28.

The angle formed by the reflecting surface 28 and the display portion forming portion 22 is θ, and is referred to as “the angle θ of the reflecting surface 28”. If the angle θ of the reflecting surface 28 is set to an angle smaller than 45 degrees, the angle of the light emitted from the display unit 30 to the outside can be turned upward. That is, since the display unit 30 can be displayed brightly toward the upper part, the visibility can be improved when the authentication security terminal device 10 is installed lower than the line of sight. If the angle θ of the reflecting surface 28 is set to 45 degrees, the angle of the light emitted from the display unit 30 to the outside can be made almost horizontal. Therefore, when the authentication security terminal device 10 is installed at the same height as the line of sight. In the above, the display unit 30 can be displayed brightly with respect to the line of sight, and the visibility can be improved. The angle θ of the reflecting surface 28 may be larger than 45 degrees. When the authentication security terminal device 10 is installed at a position higher than the line of sight, the display unit 30 can be displayed brightly with respect to the line of sight. It can be done and visibility can be improved. The reflecting surface 28 does not have to be a flat flat surface, and may be, for example, a convex surface. With respect to the height of the authentication security terminal device 10, the range of the line of sight that allows the display unit 30 to be displayed brightly with respect to the line of sight can be widened, and visibility can be improved in a wide range. The reflective surface 28 may be concave. Since the light can be collected, the display unit 30 can be displayed brighter and the visibility can be improved.

In each of the above embodiments, the reflecting unit 27 is provided, and the light from the light source 60 is reflected by the reflecting unit 27 toward the openings of the first display unit 35 and the second display unit 40. It can be omitted. Since the distance from the light source 60 to the second display unit 40 is shorter than the distance from the light source 60 to the first display unit 35, the brightness of the light directly reaching the opening of the second display unit 40 from the light source 60 is the light source 60. Since it is brighter than the brightness of the light reaching the opening of the first display unit 35, brighter light leaks from the second display unit 40 than from the first display unit 35 even without the reflection unit 27, and the second display is displayed. It can be easily determined whether or not the part 40 is shining.

In each of the above embodiments, the security terminal device 10 for authentication attached to the outdoor surface 100 of the building has been described as an example, but the present invention can also be applied to the security terminal device 10 provided inside the building. This is because when the sunlight from the window of the building hits the security terminal device 10, the characters of the first display unit 35 are similarly difficult to recognize.

In each of the above embodiments, the first display unit 35 and the second display unit 40 are formed by deleting a part of the display unit forming portion 22 to form an opening, but the deleted portion is made of a transparent substance. You may fill it. Further, the transparent substance may be colored and transparent. Since the color changes with sunlight, it is easy to see that the light is bright. The color of the light source 60 may be different from that of sunlight.

In each of the above embodiments, the first display unit 35 and the second display unit 40 have been described as being separated. However, in the first to third embodiments, a part of the first display unit 35 on the light source 60 side may be used as the second display unit 40. Depending on whether or not a part of the first display unit 35 on the light source 60 side is brightly lit, it is possible to recognize whether it is in a warning state or a non-warning state.

In each of the above embodiments, a light emitting diode is used as the light source 60, but other light sources may be used. For example, an inorganic EL, an organic EL, a cold cathode tube, or a laser other than the light emitting diode may be used. When a laser is used, a lens, a concave mirror, or a beam expander may be used to spread the light.

In each of the above embodiments, the characters of the first display unit 35 have been described by taking horizontal writing as an example, but the characters of the first display unit 35 may be written vertically. If the second display unit 40 is located on the light source 60 side of the characters on the first display unit 35, it may be exposed to sunlight and the illuminance is high.

The present invention is not limited to the above-described embodiment, and can be realized with various configurations within a range not deviating from the gist thereof. For example, the technical features of the embodiments corresponding to the technical features in each embodiment described in the column of the outline of the invention are for solving a part or all of the above-mentioned problems, or a part of the above-mentioned effects. Alternatively, they can be replaced or combined as appropriate to achieve all of them. Further, if the technical feature is not described as essential in the present specification, it can be deleted as appropriate.

10 ... Security terminal device 20 ... Case 21 ... Surface plate 22 ... Display unit forming unit 25 ... Light guide plate 27 ... Reflecting unit 28 ... Reflecting surface 30 ... Display unit 35 ... First display unit 40 ... Second display unit 42 ... Child display Part 43 ... Between two child display parts 50 ... Authentication part 55 ... Warning state switching button 60 ... Light source 61 ... Light source 70 ... Board 100 ... Surface θ ... Angle of reflective surface

Claims (5)

A security terminal device that can be attached to the surface of a structure.
With the certification department
A case for storing the authentication unit and
Inside the case, a light guide plate arranged parallel to the back surface of the case,
A light source provided at one end of the light guide plate and emitting light spreading inside the light guide plate,
A display unit that displays light by passing light from the light source through the light guide plate to the case and guiding it to the outside of the case.
With
The display unit includes a first display unit and a second display unit.
The first display unit includes characters, and the area of the area through which light passes in the first display unit is larger than the area of the area through which light passes in the second display unit.
The distance from the light source to the second display unit is shorter than the distance from the light source to the first display unit.
Security terminal device. The security terminal device according to claim 1.
A reflecting portion that reflects at least a part of the light from the light source toward the surface of the case is provided on the side of the light guide plate opposite to the case side.
Security terminal device. The security terminal device according to claim 2.
A security terminal device in which the reflective portion is a metal film or plate. The security terminal device according to claim 2.
The reflective portion is a security terminal device having frosted glass-like irregularities formed on the side of the light guide plate opposite to the case side. The security terminal device according to any one of claims 1 to 4.
A plurality of the light sources are provided according to the number of the characters or the length of the character string formed by the characters.
The second display unit is divided into a plurality of child display units according to the number of characters.
A security terminal device in which a plurality of child display units are located on a line connecting the light source and the characters.

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