JPH07219467A - Lighting system for marking emergency facility - Google Patents

Abstract

PURPOSE:To provide a lighting system capable of marking the locations of various emergency facilities such as police station, fire station, emergency hospital, and doctor's office at night regardless of a power stoppage. CONSTITUTION:A non-return diode 113 is connected between a solar battery module 111 and a secondary battery 112. This emergency facility marking lighting system is provided with a power source section 110 capable of extracting the output only at night with a sunshine judging switch circuit 114 using the solar battery module 111 as a sunshine judging sensor and an illumination section 120 continuously lighting or periodically blinking a high-intensity red LED in a hollow spherical red globe through the night or for a prescribed period after sunset. The emergency facility marking lighting system independent of the commercial power, requiring no maintenance, and having a long life and high reliability can be realized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting system for marking the locations of various emergency facilities such as police stations, fire stations, hospitals and clinics at night.

[0002]

2. Description of the Related Art Conventionally, various emergency facilities such as police stations and their police stations (koban), public safety institutions such as fire stations, and emergency medical institutions such as emergency hospitals, clinics, and midwives have their locations at night. In order to make it easy to see from a distance, a red-ball-shaped lighting fixture was installed at the entrance of each facility, etc., and turned on. Usually, in these lighting fixtures, an incandescent lamp that is turned on by a commercial AC power source is housed as a light source in a hollow spherical red transparent or translucent glass globe. Usually, commercial power is pre-wired in an emergency facility, and the illuminance of these luminaires can be freely selected according to the power consumption value of the attached light bulb, and there is also an advantage that the maintenance cost is low.

However, although the frequency may be low, these luminaires cannot be lit during a power failure. Further, even if the tungsten filament of the incandescent light bulb is broken, the lamp cannot be turned on, and there is a problem that the marking by the illumination cannot be performed.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art. It requires no maintenance for a long period of time and can indicate the location of emergency facilities at night regardless of whether or not there is a power failure. The objective is to provide a long-life, high-reliability lighting system.

[0005]

SUMMARY OF THE INVENTION The above-mentioned object is achieved by a sunshine discrimination switch circuit in which a backflow prevention diode is connected between a solar cell module according to the present invention and a secondary battery, and the solar cell module serves as a sunshine discrimination sensor. For emergency facility marking with a power supply that can take out only the output and a lighting unit that makes the high-luminance red light emitting diode in the hollow spherical red transparent or semi-transparent globe light continuously for a predetermined time or blinks periodically This is achieved by the lighting system.

[0006]

In such a structure, the DC power generated by converting the solar light energy into electric energy by the solar cell in the daytime and generating the electric power is like a sealed nickel-cadmium storage battery (hereinafter, abbreviated as nicad battery). It stores electricity in a secondary battery. Then, by the DC power from the secondary battery,
(EN) An illumination system for emergency facility marking, which is independent from commercial power and which continuously lights up a high-intensity red LED when it gets dark at night or continuously for a predetermined time, or makes it blink periodically.

[0007]

Embodiments of the present invention will be described in detail below with reference to the drawings.

(Embodiment 1) FIG. 1 is a block diagram showing a circuit configuration of an illumination system for emergency facility marking according to a first embodiment of the present invention. In FIG. 1, the power supply unit 110 has, for example, an operating voltage of 8.0 V and an operating current average of 130 m.
A (maximum output 1.0W) solar cell module 111
A main DC power supply unit is constituted by a rechargeable battery 112 including a Nicad battery (nominal voltage 6V) having a nominal capacity of 1200 mAh in series with five cells. During the daytime, the nickel-cadmium battery 112 is charged and stored with direct current power generated by the solar cell module 111 from sunlight. This solar cell module 111 is used not only for power generation but also as a sunshine discrimination sensor. On the other hand, if it gets dark at night without a sun, 1
In order to prevent the solar cell module 111, which is a kind of diode, from being biased in the forward direction and become a load on the nicad battery 112 and the nicad battery 112 is discharged, a backflow prevention is provided between the solar cell module 111 and the nicad battery 112. The diode D113 is connected. It is sufficient to expect a voltage drop of about 0.4 V due to the backflow prevention diode D113.

Since the illumination system for emergency facility marking according to the present invention is a lighting indicator only at night, it lights up when the outdoor illuminance becomes dark at 200 to 100 lux at sunset,
When the sun rises, it may be adjusted so that the light goes out when it becomes bright up to 100 to 200 lux. The solar cell module 111 itself is used for the sunshine discrimination sensor.
The power supply unit 11 which operates the switch circuit 114 depending on the presence / absence of the output of 11
0 is configured. The power supply unit 110 described above integrally houses the solar cell module 111, the secondary battery 112, the backflow prevention diode 113 and the sunshine discrimination switch circuit 114 in a waterproof housing, and is provided with positive and negative terminals. Unitization is convenient for constructing the lighting system according to the present invention. Further, when the lighting system is installed, if the sunlight of the emergency facility is bad, the power supply unit 110 is divided into the solar cell module 111 and other portions, and each is housed in a housing having a waterproof structure. Install in a place with excellent sunshine conditions and connect it to another power supply section to eliminate the problem.

If the rated voltage is 6 V (DC) as in the power supply unit 110 described above, the high-intensity red LED 12 is normally used.
It is possible to configure an illuminating unit 120 that connects up to three 1 (operating voltage of 1.8 V) and turns on the light. Depending on the emergency facility, it is necessary to continuously light up at night, but if there is no legal obstacle, the blinking cycle, duty ratio, peak current value, etc. are set by the lighting control circuit 122, and the LED 121 is turned on for 0.5 s, 0. Repeat 5s off,
Blinking periodically is more effective because it improves visibility and economy. That is, since the average operating current value can be lowered by blinking the light periodically, it is first possible to adopt an inexpensive power supply unit having a relatively small capacity. Alternatively, it is possible not only to use LEDs of higher brightness but also to improve visibility from a distance by blinking the light source. As a light source, conventional incandescent bulbs have a lighting life of generally 1
By replacing the LED with 0 ⁵ h, it is possible to extend the life of the illuminating part, which does not substantially require replacement. Also LED
Since the over-discharging prevention function can be imparted by the diode characteristic of (3), there is no fear of over-discharging the secondary battery of the power supply unit. The high-brightness red LED light source globe may be made of hollow spherical red transparent or translucent glass as in the past, but since it is easily damaged, it is a weather-resistant and impact-resistant synthetic material such as acrylic resin or polycarbonate. It is desirable to replace with resin.

(Embodiment 2) FIG. 2 is a block diagram showing a circuit configuration of an illumination system for emergency facility marking according to a second embodiment of the present invention. In the first embodiment, as the secondary battery 112 of the power supply unit 110, the case of using a NiCd battery having an excellent overcharge resistance in a wide temperature range has been described. Lead-acid batteries and lithium secondary batteries, which are smaller and lighter than Nicad batteries and have excellent low-temperature characteristics, can also be used. However,
Since these secondary batteries are inferior in overcharge resistance, if the overcharge prevention circuit 215 is connected in parallel to the solar cell module as shown in the power supply unit 210 of FIG.
Overcharging is prevented. Since the other points are the same as those in the first embodiment, description thereof will be omitted.

(Third Embodiment) FIG. 3 is a block diagram showing the circuit arrangement of an illumination system for emergency facility marking according to the third embodiment of the present invention. In FIG. 3, the power supply unit 310 is illustrated in the same manner as in FIG. 2, but when a nickel-cadmium battery having excellent overcharge resistance is used as the secondary battery 312, the power supply unit 110 of FIG.
Of course, like the above, the overcharge prevention circuit 315 may be omitted. The third embodiment is an example of the illuminating unit 320 in a case where it is desired to start lighting the marking illumination system after sunset and turn off the lighting system after a predetermined time in some emergency facilities. That is, as shown in the circuit of the illumination unit 320 in FIG. 3, the above object can be achieved by providing the timer circuit 323 which works in conjunction with the sunshine discrimination switch circuit 314 of the power supply unit 310. By adopting this timer circuit 323, it is not necessary to prepare a power supply unit with a higher capacity than necessary,
It also has the advantage of improving economic efficiency.

[0013]

As described above, the present invention connects the backflow prevention diode between the solar cell module and the secondary battery,
A power supply section that can take out the output only at night by the sunshine detection switch circuit that uses the solar cell module as a sunshine detection sensor,
After the sunset or all night or for a certain period of time, a high-brightness red LED in a hollow spherical red transparent or semi-transparent globe is continuously turned on, or is composed of an illumination unit that blinks periodically to prevent a power failure. Independent of commercial power, maintenance-free, long-life and highly reliable lighting system for emergency facility marking.

[Brief description of drawings]

FIG. 1 is a block diagram showing a circuit configuration of an illumination system for emergency facility marking according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a circuit configuration of a lighting system for emergency facility marking according to a second embodiment of the present invention.

FIG. 3 is a block diagram showing a circuit configuration of a lighting system for emergency facility marking according to a third embodiment of the present invention.

[Explanation of symbols]

110, 210, 310 Power supply section 111, 211, 311 Solar cell module 112, 212, 312 Secondary battery 113, 213, 313 Backflow prevention diode D 114, 214, 314 Sunlight discrimination switch circuit 215, 315 Overcharge prevention circuit 120, 220,320 Illumination part 121,221,321 High brightness red light emitting diode L
ED 122, 222, 322 lighting control circuit 323 timer circuit

Claims (6)

[Claims] 1. A power supply unit, which connects a backflow prevention diode between the solar cell module and the secondary battery, and outputs an output only at night by a sunshine discrimination switch circuit using the solar cell module as a sunshine discrimination sensor, and a hollow spherical red color. An illumination system for emergency facility marking, comprising an illumination unit for continuously lighting a high-intensity red light-emitting diode in a transparent or semi-transparent globe for a predetermined time or periodically blinking. 2. The lighting system for emergency facility marking according to claim 1, wherein a sealed nickel-cadmium storage battery is used as the secondary battery. 3. The lighting system for emergency facility marking according to claim 1, wherein a circuit for preventing overcharge is connected in parallel to the solar cell module when the secondary battery is charged by the solar cell module. 4. The lighting system for emergency facility marking according to claim 3, wherein a small sealed lead acid battery or a lithium secondary battery is used as the secondary battery. 5. The emergency facility according to claim 1 or 3, further comprising an illumination unit that is continuously turned on for a predetermined period of time after sunset or is periodically blinked by a timer circuit linked to a sunshine discrimination switch circuit of a power source unit. Lighting system for marking. 6. The hollow spherical red globe of the illuminating part is made of synthetic resin having excellent weather resistance and impact resistance.
The lighting system for emergency facility marking according to any one of 3, 4, and 5.