JP2013037990A - Aircraft beacon light device - Google Patents

Abstract

An object of the present invention is to eliminate the lighting unsatisfactory time at the time of a power failure of an air traffic light.
A battery 17 is provided separately from the normal constant current power supplies 11A and 11B for lighting the lamp, and the battery 17 is temporarily maintained until the power of the spare constant current power supplies 11a and 11b is supplied during a power failure. To turn on the indicator lights 141a to 141n and 142a to 142n. The battery 17 is turned on until the power of the preliminary constant current power supplies 11a and 11b is supplied.
[Selection] Figure 1

Description

  The embodiment of the present invention relates to an air traffic sign light device that prevents the influence of a runway lighting facility during a power failure.

  Conventional beacon lamps can be operated even when the power supply of the commercial power supply is interrupted due to a power outage, etc. by charging the secondary battery with solar cells and supplying the power stored in the rechargeable battery to the beacon lamp Has been proposed.

JP-A-9-269746

  ICAO (International Civil Aviation Organization) sets up the maximum time for switching to secondary power supply according to the type of lighting at facilities that light the edges of runways or taxiways during power outages as a safety measure when aircraft take off and landing. ing.

  For example, in the case of a runway lamp, there is a problem that the switching time to the secondary power source is 15 seconds at the maximum, and the lamp is not turned on for a maximum of 15 seconds at the time of power failure.

  In this embodiment, it is providing the air mark light apparatus which can aim at cancellation | release of the lighting unspotted time at the time of a power failure.

According to this embodiment, a constant current power source that supplies an AC constant current during normal operation, a standby constant current power source that supplies an AC constant current during a power failure, and a gap along both sides of the runway or taxiway. A plurality of indicator lights that are turned on based on the power source switched from the constant current power source to the standby constant current power source within a predetermined first time during a power failure,
When switched to the preliminary constant current power source, a timer that instantly counts a second time longer than the first time was started, and the marker lamp was driven by a battery during the second time.

  According to the embodiment of the present invention, it is possible to eliminate the lighting unsatisfactory time at the time of a power failure of an air traffic sign light.

It is a notional block diagram for demonstrating one Embodiment regarding an aircraft sign lamp apparatus. It is a specific circuit diagram of the lighting means of FIG. It is a perspective view for demonstrating an example of a marker lamp. It is a flowchart for demonstrating operation | movement. It is a timing chart for demonstrating operation | movement. It is a flowchart for demonstrating operation | movement. It is a timing chart for demonstrating operation | movement.

  Hereinafter, embodiments will be described in detail with reference to the drawings.

  1 to 7 are diagrams for explaining an embodiment relating to an air traffic sign light device, FIG. 1 is a conceptual configuration diagram, FIG. 2 is a specific circuit diagram of the lighting drive circuit of FIG. 1, and FIG. FIG. 4 and FIG. 7 are flowcharts for explaining the operation, and FIG. 5 and FIG. 6 are timing charts for explaining the operation, respectively.

  11A and 11B are, for example, two constant current power supplies (CCR: Constant Current Regulator) for supplying an AC constant current with a rating of 6.6 A, for example, for lighting a marker lamp that lights both edges of a runway. . The constant current power supplies 11A and 11B are completely different power supplies. When one of the constant current power supplies 11A and 11B goes down, power can be supplied from the other.

  The constant current power supplies 11A and 11B have a current switching function for switching the output current for dimming. The current value to be switched is, for example, 6.6 A, 5.2 A, 4.1 A, 3.2 A, and 2.8 A, and can be changed to a corresponding current value by tap switching.

  Reference numerals 11a and 11b denote reserve constant current power supplies. The reserve constant current power supplies 11a and 11b are for supplying an alternating constant current in the event of a power failure or failure of the constant current power supplies 11A and 11B. For example, the constant current power supplies 11A and 11B Configured in the same way. The standby constant current power supplies 11a and 11b are switched and connected to the load side by a switching signal generated based on, for example, a power failure of the constant current power supplies 11A and 11B at the time of a power failure. The first time required for this switching is set to a maximum of 15 seconds, and switching to the preliminary constant current power supplies 11a and 11b is performed during this first time. For example, an uninterruptible power supply is conceivable as a power source for the preliminary constant current power sources 11a and 11b.

  The AC constant currents supplied from the constant current power supplies 11A and 11B through the power supply lines 131 and 132, respectively, are arranged such that light sources arranged at intervals on both sides of the runway use the indicator lamps 141a to 141n of the light emitting diodes LED. The lighting means 151a to 151n for lighting and the lighting means 152a to 152n for lighting the marker lamps 142a to 142n are respectively supplied. For example, 200 to 300 marker lights are installed on a 3000 m runway.

  The lighting means 151a to 151n and 152a to 152n have the same configuration. That is, a DC power source obtained via AC / DC converting means (not shown in FIG. 1) is supplied with a predetermined voltage to the marker lamp via the control circuit 16.

  The lighting means 151a to 151n and 152a to 152n will be described with reference to FIG. 2, but these have the same configuration, and here, the lighting means 151a will be described as a representative.

  That is, the current of the luminous intensity ratio of the light emitting diode LED from the constant current power supply 11 </ b> A is rectified by the rectifier 22 through the insulating transformer 21 and supplied to the control circuit 16. The positive voltage output from the output of the control circuit 16 is connected to the first fixed contact Sa of the switch SW1 by a relay or the like, and the movable contact S3 of the switch SW1 is a marker lamp configured by connecting a plurality of light emitting diodes LED in series. 141a is connected to the positive electrode. Further, the negative voltage output from the output of the control circuit 16 is connected to the first fixed contact Sa of the switch SW2, and the movable contact Sc of the switch SW2 is connected to the negative electrode of the indicator lamp 141a.

  The second fixed contact Sb connected to the movable contact Sc of the switch SW1 is connected to one end of the timer 18 for 17 seconds or longer, for example, 17 seconds, and the second fixed contact Sb connected to the movable contact Sc of the switch SW2 is A battery 17 is connected between the other end of the timer 18. Since the battery 17 has a first time until the supply of the reserve constant current power supply is 15 seconds at the maximum, the battery 17 may have a small capacity that lights up for 15 seconds or more, for example, about 16 to 30 seconds. The battery 17 may be a primary battery or a secondary battery.

  The movable contact Sc of the switches SW1 and SW2 is switched and connected between the first fixed contact Sa and the second fixed contact Sb based on a control signal from the control circuit 16. The timer 18 starts counting for 17 seconds based on the control signal of the control circuit 16. When 17 seconds have elapsed, the timer 18 supplies information notifying that it has elapsed to the control circuit 16.

  The lighting means 151a preferably includes a discharge control switch or the like in order to prevent the battery 17 from being discharged during standby. The specific configuration of the discharge control switch can be appropriately implemented.

  Next, a specific example of the marker lamp 141a among the marker lamps 141a to 141n and 142a to 142n having the same configuration will be described with reference to FIG.

  The base 31 that is a ground-type marker lamp 141a is erected on the ground 32 beside the runway of the airport, and emits light in all directions to show obstacles beside the runway. Yes. The base body 31 is erected on the ground 32 via pipe-shaped legs 33. A plurality of light emitting diode units 34 are combined and arranged on the top of the base body 31, and the plurality of light emitting diodes are provided. A globe body 35 that covers the unit 34 and has translucency is attached to the base 31.

  The light emitting diode unit 34 uses a substrate on which the light emitting diodes LED are integrated, and has a substantially cylindrical shape in which the light emitting surface 36 is arranged in an annular shape toward the outer peripheral surface and arranged in a plurality of rows in the vertical direction.

  The lighting means 151a for lighting the marker lamp 141a is stored in a hand hole 37 embedded in the ground 32 in the lawn adjacent to the runway. The lighting means 151 a and the marker lamp 141 a in the embedded body 37 are electrically wired through an embedded body (not shown) embedded in the ground 32. In addition, if the lighting means 151a is accommodated in, for example, the base 31 of the marker lamp 141a, the embedded body 37 is not necessarily required.

  Here, with reference to FIGS. 4 to 7, control of the control circuit in the lighting means 151a by the constant current power supply 11A will be further described with reference to FIG.

<Operation during power failure>
First, the lighting operation at the time of a power failure will be described with reference to FIGS. 4 and 5. In FIG. 4, in step S1, it is determined whether the constant current power source 11A is driven by a power source based on an AC constant current. If it is determined in step S1 that the power supply is based on the constant current power supply 11A, the movable contact Sc of the switches SW1 and SW2 is connected to the first fixed contact Sa side, and the lighting means 151a is obtained based on the constant current power supply 11A. The indicator lamp 141a is turned on with the DC voltage generated (S2). That is, in steps S1 and S2, the indicator lamp 141a shown in FIG. 5 (d) is turned on during the driving period of the lighting means 151a by the constant current power supply 11A shown in FIG. 5 (a).

  In step S3, it is determined whether or not the constant current power source 11A is driven by a power source based on the AC constant current. In the case of driving by the power source based on the AC constant current of the constant current power source 11A, the process returns to step S1. When the constant current power supply 11A is not driven by a power supply based on an AC constant current, the control circuit 16 detects the fall of the constant current power supply 11A shown in FIG. 5A and determines that the constant current power supply 11A has failed.

  The control circuit 16 switches the movable contacts Sc of the switches SW1 and SW2 to the second fixed contacts Sb, turns on the indicator lamp 141a with a DC power source by the battery 17 (S4), and starts counting of the timer 18 (S5). . That is, in step S4, the indicator lamp 141a shown in FIG. 5 (d) is turned on during the drive period of the lighting means 151a by the battery 17 shown in FIG. 5 (a).

  The second time during which the timer 18 operates is set to be longer than 15 seconds when the constant current power supply 11A is switched to the standby constant current power supply 11a in the event of a power failure. Counting continues even after switching to 11a.

  The control circuit 16 after connecting the movable contacts Sc of the switches SW1 and SW2 to the respective second fixed contacts Sb determines whether it is connected to the preliminary constant current power source 11a in step S6. When it is determined that the auxiliary constant current power source 11a is connected, the movable contacts Sc of the switches SW1 and SW2 are respectively switched to the first fixed contact Sa, and the indicator lamp 141a is turned on with a DC voltage obtained based on the auxiliary constant current power source 11a. (S7). The control circuit 16 determines whether or not the timer 18 has finished counting for 17 seconds (S8) and ends. That is, in steps S6 and S7, the indicator lamp 141a shown in FIG. 5 (d) is turned on during the drive period of the lighting means 151a by the preliminary constant current power supply 11a shown in FIG. 5 (a).

  As described above, the indicator lamp 141a can be lit even when the constant current power supply 11A is down due to a power failure and the period until the switch to the standby constant current power supply 11a is set to a maximum of 15 seconds. In addition, since a special control line for driving with a battery that compensates for the time for switching from the constant current power supply 11A to the standby constant current power supply 11a is not required, a system can be constructed at a low cost. The timer 18 is preferably reset by automatic reset or other means after the count is completed.

<Operation when the light is off>
Next, the lighting operation when the light is turned off will be described with reference to FIGS. In this case, the process of steps S6 and S7 in the flowchart of FIG. 4 does not require the process of connecting to the preliminary constant current source.

  In FIG. 6, in the process of steps S1 and S2, the indicator lamp 141a shown in FIG. 7 (d) is turned on during the drive period of the lighting means 151a by the constant current power supply 11A shown in FIG. 7 (a). In step S3, the control circuit 16 in the case where the constant current power supply 11A is turned off and no DC voltage is output from the rectifier 22 based on the fall of FIG. 7A, the movable contact Sc of the switches SW1 and SW2 is set to the second. Switching to the fixed contact S2, the indicator lamp 141a is turned on by the power source of the battery 17 (S4).

  Simultaneously with switching the movable contact Sc of the switches SW1 and SW2 to the second fixed contact Sa, the control circuit 16 starts counting of the timer 18 (S5). When it is determined that the timer 18 has passed 17 seconds, the control circuit 16 switches the movable contact Sc of the switches SW1 and SW2 to the first fixed contact Sa and turns off the indicator lamp 141a.

  As described above, when the power supplies of the constant current power supplies 11A and 11B are turned off, the indicator lamp is turned on for 17 seconds after the time of the timer 18 elapses after the power supply is turned off. Operation can be realized.

  In this embodiment, when the main constant current power supply fails, the battery is turned on instantaneously during the period of switching to the standby constant current power supply, and when switched to the standby constant current power supply, the standby constant current power supply is used. Can be lit.

  In the above embodiment, the runway beacon is taken as an example, but other types such as a guide light may be used. Further, the lamp has been described as a ground type, but it may be an embedded type installed in a place where it is stepped on by an aircraft. The lamp color may be any of red, green, yellow, blue and white used at the airport. As the type of lamp, a light emitting diode has been exemplified as a trend of the times, but a halogen lamp may be used.

  The timer 18 may use a clock built in the control circuit 16. In this case, as a power source for the timer 18, a capacitor in which electric charge is stored may be used instead of the battery. Furthermore, when the battery is turned on, a signal line for transmitting another dimming signal to the lighting means side is necessary to realize dimming by tap switching from the control where the constant current power source or the standby constant current power source is installed. For this reason, it is practical to set the lighting with the battery to the rated lighting.

  Although the embodiment has been described, this embodiment is presented as an example and is not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, combinations, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

11A, 11B Constant current power supplies 11a, 11b Preliminary constant current power supplies 131, 132 Power supply lines 141a-141n, 142a-142n Indicator lamps 151a-151n, 152a-152n Lighting means 16 Control circuit 17 Battery 18 Timer

Claims (2)

A constant current power source that supplies an alternating constant current during normal operation;
A standby constant current power supply for supplying a constant AC current during a power failure of the constant current power supply;
A plurality of lamps arranged so as to be lit by the constant current power supply or the reserve constant current power supply, and are lit based on a power supply switched from the constant current power supply to the reserve constant current power supply within a predetermined first time at the time of a power failure With lights;
And a lighting means having a battery and a timer, and when switched to the preliminary constant current power source, the indicator lamp is driven by the battery for a second time period longer than the first time. An air traffic sign light device characterized by that.   2. The air traffic sign light device according to claim 1, wherein the first time is a maximum of 15 seconds, and the second time is set between 15 seconds and 30 seconds.

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