JP6924675B2 - High-intensity aviation obstruction light system - Google Patents

Description

The present invention relates to a high-intensity aviation obstruction light system in which a control device controls a plurality of aviation obstruction lights indicating their presence in daytime, twilight, and nighttime, such as a building that obstructs a flying aircraft.

Conventionally, an aviation obstruction light system has been used to indicate the presence of high-rise structures (excluding high-rise buildings) that obstruct flying aircraft during the daytime, twilight, and nighttime. As a conventional dimming system or an aviation obstruction light system, for example, Patent Documents 1 to 3 are known.

The dimming control system described in Patent Document 1 is connected to a dimming control panel and a transmission line that transmit a dimming control signal and receive a signal related to status monitoring information via a transmission line, and is also used as a lighting fixture. It has a control unit that is connected and controls the light output of the lighting fixture according to the dimming control signal sent from the dimming control panel, and includes a dimmer that supplies power to the lighting fixture. The dimming control panel is provided with a power supply unit that supplies power via a transmission line, and the dimmer detects the voltage applied to the luminaire or the flowing current according to the control by the control unit, and obtains the detection result. It is equipped with a monitoring information transmission unit that transmits to the dimming control panel as a signal related to status monitoring information.

The aviation obstruction system described in Patent Document 2 is received by a plurality of aviation obstruction lights installed in a predetermined area, a time radio wave receiving device for receiving a time radio wave for notifying the time such as a Japanese standard time radio wave, and a time radio wave receiving device. A flickering control means that outputs a timing pulse signal having a predetermined duty ratio and a period at each predetermined time indicated by the blinking control means, and a plurality of powers that are on / off controlled based on the timing pulse signal from the flickering control means in the predetermined area. It is provided with a plurality of control units provided with power supply control means for each of the obstruction lights.

The aviation obstruction light control system described in Patent Document 3 includes a plurality of aviation obstruction light control terminals that control aviation obstruction lights, a monitoring control device that monitors and controls aviation obstruction light control terminals, and an aviation obstruction light control terminal. It includes a signal line to which the device and the monitoring and control device are communicably connected to each other.

Japanese Unexamined Patent Publication No. 2009-146617 Japanese Unexamined Patent Publication No. 2004-55460 JP-A-2002-260403

However, in order to apply Patent Document 1 to a high-luminosity aviation obstruction light, it is necessary to provide a communication function for each flash device attached to the upper part of a steel tower and a control center on the ground, which complicates the circuit configuration and costs. Becomes expensive.

Patent Document 1 describes that the voltage or current applied to the luminaire is detected, the detection result is transmitted to the dimming control panel and displayed, and the display of the dimming result of continuous constant luminous intensity is described. Will be done. However, it is unclear whether it can be applied to a flash device with a period of 1 to 1.5 seconds, and since there is no function such as whether the flash operation is synchronized with the flash command, it is not suitable for high-intensity aviation obstruction lights. ..

In Patent Document 2, in order to synchronize the blinking or flashing of a plurality of obstruction lights, a GPS receiver is provided for each obstruction light, which complicates the circuit configuration and increases the cost. In Patent Document 2, each high-intensity aviation obstruction light can be synchronized, but it cannot be verified whether the flashing result is synchronized in the ground control center or the like.

According to Patent Document 3, in a plurality of high-luminosity aviation obstruction lights, a communication function must be provided for each flash device and a ground control unit, respectively, which complicates the circuit configuration and increases the cost. With this technology, it is not possible to detect the result of the flash and verify whether it is synchronized with the flash command.

An object of the present invention is to provide a high-intensity aviation obstruction light system including a plurality of flashing high-intensity aviation obstruction lights that can simplify the circuit configuration and reduce the cost.

In order to solve the above problems, the high-intensity aviation obstruction light system according to the present invention is for instructing a plurality of flash devices arranged in a predetermined area and flashes of the flash devices at a cycle of 1 to 1.5 seconds. A high-intensity aviation obstruction light system including a controller that transmits a trigger signal to the plurality of flash devices via a pair of control lines, and each of the plurality of flash devices flashes by the trigger signal. The LED, the current detection circuit that detects the current flowing through the LED, and the signal obtained by taking the logical product of the current signal detected by the current detection circuit and the trigger signal are delayed by a delay time set for each flash device. It has a time-division flash circuit that outputs a return signal obtained by synthesizing the flash signals to a pair of control lines different from the trigger signal, and the controller has each flash based on the return signal and the trigger signal. It is characterized in that it determines whether or not the devices are flashing in synchronization.

According to the present invention, the time-division flash circuit of the flash device delays a signal obtained by taking the logical product of the current signal detected by the current detection circuit and the trigger signal by a delay time set for each flash device. When the signal is time-divisionally returned to the control line and output as a signal, the controller determines whether each flash device is flashing synchronously based on the return signal and the trigger signal.

That is, whether or not the trigger signal output by the controller and the flash of the flash device are synchronized is determined by two types of signals transmitted via the two types of control lines, so that the controller does not need a dedicated communication function. It becomes. The circuit configuration can be simplified and the cost can be reduced. Moreover, since the communication function is not used, it is hardly affected by external noise.

It is a block diagram of the high light intensity aviation obstruction light system which concerns on Example 1 of this invention. It is a block diagram of each flash device of the high-intensity obstruction light system which concerns on Example 1 of this invention. It is a flowchart which shows the processing of each flash device of the high light intensity aviation obstruction light system which concerns on Example 1 of this invention. It is a flowchart which shows the processing of the control device of the high light intensity aviation obstruction light system which concerns on Example 1 of this invention. It is a timing chart at the time of synchronization of the flash signal of each flash device of the high-intensity obstruction light system according to the first embodiment of the present invention. It is a timing chart at the time of flash stop of the flash signal of the flash device of the high-luminosity obstruction light system according to the first embodiment of the present invention. It is a timing chart at the time of asynchronous of the flash signal of the flash device of the high-intensity obstruction light system according to the first embodiment of the present invention.

Hereinafter, the high-intensity aviation obstruction light system according to the embodiment of the present invention will be described in detail with reference to the drawings.

The high-luminance aviation obstruction light system switches the luminous intensity according to the ambient brightness, and all the light emitters installed in one flash device flash at specified intervals in synchronization. The high-luminosity aviation obstruction light system of the first embodiment uses a flash device using an LED for the light emitting unit, and all the light emitting parts are synchronously flashed to easily detect an abnormality.

In the high-luminosity aviation obstruction lights, all the flashing devices are flashed at the same time with the number of flashes of 40 to 60 / min for each installed property. A light emitting diode is used as a light source, and the number of times is set to once or more within 100 to 250 milliseconds. In the case of high-intensity aviation obstruction lights, if the power supply unit and control unit fail, each flash device automatically flashes at intervals of 2 to 3 seconds. The high-intensity aviation obstruction light switches the light intensity in three stages: daytime (200,000 cd), twilight (20,000 cd), and nighttime (2,000 cd).

FIG. 1 is a block diagram of a high-luminance aviation obstruction light system according to a first embodiment of the present invention. The high-luminance aviation obstruction light system is provided in a high-rise structure or the like that obstructs an aircraft, and has three to eight, for example, four flash device light emitting units 1-1 to 1-4 and four flash device light emitting units 1-. Four flash device power supply units 2-1 to 2-4 connected to 1-4 to drive four flash device light emitting units, and control lines 3-1, 4-1 to 3-4, 4-4. Branch relay box 6-1 connected to four flash device power supply units 2-1 to 2-4 via power supply lines 5-1 to 5-4, control lines 7-1, 8-1, and power supply line 9 It is provided with a branch relay box 6-2 connected to the branch relay box 6-1 via -1. The control lines 7-1 and 8-1 and the power supply line 9-1 are longer than 60 m.

The four flash device light emitting units 1-1 to 1-4 and the four flash device power supply units 2-1 to 2-4 constitute four flash devices and are arranged on all sides at the same height.

In addition, the high-intensity aviation obstruction light system has four flashes connected to four flash device light emitting units 1-5 to 1-8 and four flash device light emitting units 1-5 to 1-8 via a connecting line. Four flash device power supply units 2 via the device power supply unit 2-5 to 2-8, control lines 3-5 to 3-8, 4-5 to 4-8, and power supply lines 5 to 5 to 5-8. The branch relay box 6-2 connected to -5 to 2-8, and the controller 10 connected to the branch relay box 6-2 via the control lines 7-1 and 8-1 and the power supply line 9-1. , The ambient illuminance detector 11 connected to the control device 10 is provided.

The four flash device light emitting units 1-5 to 1-8 and the four flash device power supply units 2-5 to 2-8 constitute four flash devices, and are arranged at the same height, for example, on all sides. The four flash device light emitting units 1-1 to 1-4 and the four flash device power supply units 2-1 to 2-4 are arranged at different heights.

In this example, eight flash devices have been illustrated, but the plurality of flash devices is not limited to eight.

The power supply lines 9-1 from the controller 10 are connected to the power supply lines 5-1 to 5-8 via the branch relay boxes 6-1 and 6-2. The control line 7-1 from the control device 10 is connected to the control lines 3-1 to 3-8 via the branch relay boxes 6-1 and 6-2, and the control line 8-1 from the control device 10 is a branch relay. It is connected to control lines 4-1 to 4-8 via boxes 6-1 and 6-2. The control lines 7-1, 3-1 to 3-8 are signal lines for transmitting a trigger signal and a luminous intensity switching signal for instructing each flash device to blink the flash device from the control device 10. The control lines 8-1, 4-1 to 4-8 are a pair of signal lines for the controller 10 to receive the return signal from each flash device.

FIG. 2 is a block diagram of each flash device of the high-luminosity obstruction light system according to the first embodiment of the present invention. Each flash device is composed of a flash device light emitting unit 1 (1-1 to 1-8) and a flash device power supply unit 1 (2-1 to 2-8) that drives the flash device light emitting unit 1. The flash device power supply unit 2 is connected to the flash device light emitting unit 1 (1-1 to 1-8) in which a plurality of LEDs are connected in series.

Each flash device power supply unit 2 includes a switch 21, a transformer 22, a DC power supply circuit 23, a switch unit 24, a current detection unit 25, a flash control circuit 26, an LED drive circuit 27, a current detection circuit 28, and a time-division flash circuit 29. ing. The transformer 22 may be omitted.

When the switch 21 is turned on, an AC voltage of 200 V is supplied to the primary winding of the transformer 22 from the power supply lines 5 (5-1 to 5-8). The DC power supply circuit 23 converts the AC voltage from the secondary winding of the transformer 22 into a DC voltage, and converts the DC voltage into a series circuit including a flash device light emitting unit 1 composed of LEDs, a switch unit 24, and a current detection unit 25. Supply.

The flash control circuit 26 outputs a trigger signal input from the controller 10 to the LED drive circuit 27 and the time-division flash circuit 29. Further, the flash control circuit 26 outputs a luminous intensity switching signal for switching the luminous intensity input from the controller 10 to any of daytime, twilight, and nighttime to the LED drive circuit 27.

The LED drive circuit 27 drives the flash device light emitting unit 1 composed of LEDs by turning on and off the switch unit 24 at a high frequency and at a constant cycle by a trigger signal from the flash control circuit 26. The switch unit 24 is a switching element Q1 which is connected in series to the flash device light emitting unit 1 and is composed of a MOSFET. The switching element Q1 may be an isolated bipolar transistor or the like.

The current detection unit 25 is connected in series with the switch unit 24, and includes, for example, a current detection resistor and a Hall element. The current detection circuit 28 detects the current flowing through the current detection resistor and the Hall element, that is, the current flowing through the light emitting unit 1, determines whether or not the detected energizing current is at the specified current value, and the energizing current becomes When the specified current value is reached, the energizing current is output to the time-divided flash circuit 29.

The time-divided flash circuit 29 takes a logical product of the current signal detected by the current detection circuit 28 and the trigger signal from the flash control circuit 26, and the signal obtained by the logical product is used only for the delay time set for each flash device. The delayed return signal is output to the control lines 4-1 to 4-8. Therefore, by ORing the control lines 4-1 to 4-8, the return signal ds shown in FIG. 5 or 6 is generated on the control line 8-1 in a time-division manner for each flash device. ..

The control device 10 transmits a trigger signal for instructing a flash of a flash device having a period of 1 to 1.5 seconds to a plurality of flash devices via a pair of control lines. The control device 10 compares a return signal composed of a pair of each flash signal sent from each flash device to the control line 8-1 via the control lines 4-1 to 4-8 in a time-division manner and a trigger signal. Then, it is determined whether each flash device is flashing in synchronization.

When the controller 10 receives the return signal at the timing obtained by adding the delay time set for each flash device to the trigger signal, the controller 10 determines that each flash device is flashing in synchronization, and determines that the flash is flashing. If the return signal is not received at the timing and the return signal is not received within one cycle of the flash cycle, it is determined that the flash device has stopped the flash, and the return is performed at a timing different from the predetermined timing. When a signal is received, it is determined that some of the flash devices are flashing asynchronously.

Further, when the flash device does not receive the trigger signal from the controller 10, each flash device generates a unique signal different from the trigger signal, and generates a flash signal based on the unique signal.

Next, the processing of the high-intensity aviation obstruction light system according to the first embodiment configured in this way will be described.

First, the processing of each flash device will be described with reference to FIG. Each flash device determines whether or not a trigger signal has been received from the control device 10 via the control lines 3-1 to 3-8 (step S11), and if the trigger signal is received, the switch unit uses the trigger signal. The 24 is turned on and off at a high frequency (step S12). Then, since a current flows through the flash device light emitting unit 1, the switch unit 24, and the current detection unit 25, the current detection circuit 28 detects the energizing current flowing through the flash device light emitting unit 1.

The time-divided flash circuit 29 takes a logical product of the current signal detected by the current detection circuit 28 and the trigger signal from the flash control circuit 26, and the signal obtained by the logical product is used only for the delay time set for each flash device. The delayed flash signal is used (step S13).

Further, since each time-division flash circuit 29 outputs the flash signal to the control lines 4-1 to 4-8 in a time-division manner, the return signal obtained by ORing the flash signals of the control lines 4-1 to 4-8 is obtained. It is transmitted on the control line 8-1 and the return signal is transmitted to the controller 10 (step S14).

On the other hand, in step S11, when each flash device does not receive the trigger signal from the controller 10, the flash device generates its own signal, and the generated signal is used as the trigger signal (step S15). Proceed to the process of S12.

Next, the processing of the controller 10 will be described with reference to FIG. The control device 10 transmits a trigger signal to each flash device via the control line 7-1 (step S21).

Then, a return signal is received from each flash device via the control line 8-1 (step S22). The controller 10 analyzes the return signal and the trigger signal (step S23), and determines whether or not there is a return signal (step S24).

When there is a return signal, the controller 10 determines whether or not the return signal is synchronized with the trigger signal (step S25). When the controller 10 receives the return signal at the timing obtained by adding the delay time set for each flash device to the trigger signal, the controller 10 determines that the flash devices are flashing in synchronization (step S26). ).

In the example shown in FIG. 5, when the controller 10 receives the return signal ds at the timings t2, t3, and t4 obtained by adding the delay time set for each flash device to the trigger signal tg, each flash device. Is synchronized and determined to be flashing.

Further, in the example shown in FIG. 6, the controller 10 does not receive the return signal ds at the timing t2 obtained by adding the delay time set for each flash device to the trigger signal tg, and signals to another region. Since there is no flash, it is determined that the flash device has stopped the flash (step S27).

Further, in the example shown in FIG. 7, when the control device 10 receives the return signal at a timing t5 different from the timing t2, t3, and t4 in which the delay time set for each flash device is added, each flash device receives the return signal. It is determined that the flash is asynchronously flashing (step S28).

Then, this determination result is displayed by the controller 10 or output to the outside (step S29), and in the case of synchronization, the operation is continued as normal operation, in the case of stop, repair is urged, and in the case of asynchronous, it is not normal operation. Judging that, prompt the investigation.

When the energizing current is equal to or higher than the specified current, the switch unit 24 is turned off. If the energizing current is sufficiently smaller than the specified current, it is determined to be open and an alarm is output.

In addition, since the flash of the flash device has three stages of current, daytime, twilight, and nighttime, it is determined by changing the specified value current value to three stages for each of the specified value currents to determine whether the LED energizing current is the specified value current. ..

As described above, according to the high-intensity aviation obstacle light system of the embodiment, the time-division flash circuit of the flash device outputs a signal obtained by taking the logical product of the current signal and the trigger signal detected by the current detection circuit for each flash device. When the return signal, which is a combination of the flash signals delayed by the delay time set in, is output to a pair of control lines, the controller flashes in synchronization with each flash device based on the return signal from the control line and the trigger signal. Determine if you are doing it.

That is, whether or not the trigger signal output by the controller and the flash of the flash device are synchronized is determined via the control line, so that the controller does not need a communication function. The circuit configuration can be simplified and the cost can be reduced. Further, when the communication function is used, it is affected by external noise that invades the communication signal between the upper part of the tower and the control unit installed on the ground. However, since the present invention does not use the communication function, the influence of the external noise is affected. I hardly receive it. In addition, a control device can monitor whether each flash device is synchronized, stopped, or asynchronous with a set of wiring.

The high-luminance aviation obstruction lights switch between three types of luminosity, but the medium-luminous white aviation obstruction lights switch between two types of luminosity. It can also be applied to.

1, -1 to 1-8 Light emitting unit 2,2-1 to 2-8 Flash device power supply unit 3-1 to 3-8, 7-1 Trigger signal control line 4-1 to 4-8, 8-1 Control line for return signal (1 pair)
5-1 to 5-8, 9-1 Power line 6-1, 6-2 Branch relay box 10 Controller 11 Peripheral illuminance detector 21 Switch 22 Transformer 23 DC power supply circuit 24 Switch unit 25 Current detection unit 26 Flash control circuit 27 LED drive circuit 28 Current detection circuit 29 Time-split flash circuit Q1 Switching element D1 Diode

Claims (3)

A plurality of flash devices arranged in a predetermined area and a trigger signal for instructing a flash of a flash device having a period of 1 to 1.5 seconds are transmitted to the plurality of flash devices via a pair of first control lines. It is a high-intensity aviation obstruction light system equipped with a control device.
Each of the plurality of flash devices includes an LED that flashes by the trigger signal and
A current detection circuit that detects the current flowing through the LED, and
A pair of second control controls the return signal obtained by synthesizing the flash signal obtained by delaying the signal obtained by the logical product of the current signal detected by the current detection circuit and the trigger signal by the delay time set for each flash device. It has a time-dividing flash circuit that outputs to a line,
The control device determines whether or not each flash device is flashing synchronously based on a return signal composed of each flash signal sent from each flash device to the second control line in a time-division manner and the trigger signal. A high-intensity aviation obstruction light system characterized by When the control device receives the return signal at the timing obtained by adding the delay time set for each flash device to the trigger signal, the controller determines that the flash devices are flashing in synchronization. If the return signal is not received at the timing and the return signal is not received within one cycle of the flash cycle, it is determined that the flash device has stopped the flash, and the flash is stopped at a timing different from the timing. The high-intensity aviation obstacle light system according to claim 1, wherein when a return signal is received, each flash device is determined to be flashing asynchronously. When each of the flash devices does not receive the trigger signal from the controller, the flash device itself generates a unique signal different from the trigger signal, and generates the flash signal based on the unique signal to flash. The high-intensity aviation obstruction light system according to claim 1 or 2, wherein the high-intensity aviation obstruction light system.

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