JP2008270064A - Street illumination system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a street illumination system with power consumption lessened, capable of securing necessary illumination with people around, and doing away with failures such as lighting off of a lamp even if people are around at the time when a lighting mode is shifted from the nighttime to the midnight. <P>SOLUTION: The street lighting system is provided with a lamp, a ballast, a human detection sensor, a control part, and an automatic blinking unit controlling power supply. The control part is provided with a plurality of lighting modes. A nighttime lighting mode is extended at transition from the nighttime to the midnight duration, when presence of human bodies are detected. When the presence is not detected, the system turns to a dimmed lighting or a lighting-off state, and, when it is detected, the lamp is fully lit, so that power consumption is lessened and necessary illumination is secured at presence of human bodies. Since, moreover, a nighttime lighting mode is extended not to shift a lighting mode, there will be no such failures as lighting off despite presence of the human bodies at shifting into the midnight mode. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a street lighting system capable of lighting in a plurality of lighting modes.

  In this type of conventional street lighting system, a street lighting system is known in which the lighting mode is changed by dividing time into night time and midnight time (see, for example, Patent Document 1). FIG. 10 shows the lighting mode of the street lighting system according to Patent Document 1, and the horizontal axis of the figure shows the passage of time. When it is determined by the illuminance sensor that the street lighting system has that it has shifted from day to night, power is supplied to the lighting fixture, and the timer starts measuring a predetermined time. The street lighting system is a so-called dimming lighting that turns on the lamp fully at night time until the end of the measurement of the predetermined time, and after the measurement of the predetermined time is set as midnight time, suppressing the light output, Reduces power consumption.

  Also, street lighting systems are known in which the presence of a person is detected by a human sensor, the lighting state of the lamp is changed depending on the presence or absence of the person, and the lighting mode of the lamp is changed during night time and midnight time (for example, patents) Reference 2).

However, in the street lighting system disclosed in Patent Literature 1, the lamp is dimmed even in the presence of a person at midnight, and sufficient brightness is not ensured. In addition, the street lighting system disclosed in Patent Document 2 has a problem that, when shifting from night time to midnight time, the light turns off if the person is stationary without moving even if there is a person.
Japanese Patent Laid-Open No. 2003-347067 Japanese Patent Laid-Open No. 10-134967

The present invention has been made in order to solve the above-described conventional problems. The power consumption is low, and it is possible to secure necessary lighting when there is a person, and the lighting mode changes from night to midnight. An object of the present invention is to provide a street lighting system that does not cause a problem that the lamp is turned off when a person is present.

  In order to achieve the above object, the invention of claim 1 is directed to a lamp for illuminating a street, a ballast for stabilizing the lighting of the lamp, and a human sensor that detects the presence of a person and outputs a human detection signal. A control unit that controls the lamp and the ballast, and an automatic flasher that controls day and night to control power supply to the control unit and the ballast, and the control unit is controlled by the automatic flasher. When the transition from day to night is determined, the power is supplied, the timer of the control unit measures a predetermined time, and the time until the predetermined time is reached is the night time. In a street lighting system that changes the lighting mode of the lamp between the night time and midnight time after reaching the midnight time, the lighting mode by the control unit is a full lighting mode for fully lighting the lamp, run A dimming lighting mode for dimming lighting, and when the presence of a person is not detected by the presence sensor, the lamp is turned off or dimmed, and when the presence of a person is detected by the presence sensor, the timer A human sensor that fully lights the lamp during the measured lighting holding time and restarts the measurement of the lighting holding time when the presence of a person is detected again during the lighting holding time. A control mode, and the control unit lights the lamp in the full lighting mode at the night time and lights the lamp in the human sensor control mode at the midnight time, or the night time. During the time, the lamp is turned on by the human sensor control mode, and at the midnight time, the lamp is turned on by the dimming lighting mode, and a certain time for shifting from the night time to the midnight time. During the period from before it goes into the deep night time, when the presence of a person by the human sensor is detected, it is to extend the lighting mode in the night time.

  According to a second aspect of the present invention, in the street lighting system according to the first aspect, the control unit lights the lamp in the human sensor control mode at the night time and midnight time, and the lighting holding time at the midnight time. Is controlled to be shorter than the lighting holding time in the night time.

  According to a third aspect of the present invention, in the street lighting system according to the first aspect, the lighting mode by the control unit is such that when the presence sensor is detected by the human sensor, the lamp repeatedly blinks for a certain period of time. A warning control mode for performing arousing is further provided. The lamp is lit in the human sensor control mode at nighttime, and the lamp is lit in the attention control mode at midnight.

  According to a fourth aspect of the present invention, in the street lighting system according to the first aspect, when the lighting mode by the control unit detects the presence of a person by the human sensor, the lamp repeatedly blinks for a certain period of time. A reminder control mode for performing alerting, the lamp is turned on by the alert control mode at night time and midnight time, and the blinking cycle of the lamp at the time of alerting at midnight time It is controlled so as to be shorter than the cycle.

  According to the invention of claim 1, since the time for lighting the lamp is divided into night time and midnight time, and it is lit in the lighting mode according to each time, the power consumption can be reduced, Necessary lighting can be secured when people are present. Also, by extending the lighting mode at night time according to the presence of a person at a certain time before the end of the night time, the lighting mode is not switched, and the lamp is turned off regardless of the presence of a person. There is no problem.

  According to the invention of claim 2, since the human sensor control mode is used for both night time and midnight time, and the lighting holding time is shortened in midnight time, the power consumption can be reduced.

  According to invention of Claim 3, the crime prevention effect in midnight time can be heightened by alerting control mode.

  According to the invention of claim 4, the crime prevention effect at night time and midnight time can be enhanced by the alerting control mode, and the crime prevention effect at midnight time can be further enhanced since the blinking cycle at midnight time is short.

(First embodiment)
A street lighting system according to a first embodiment of the present invention will be described with reference to FIG. FIG. 1 shows the configuration of a street lighting system. The street lighting system 1 includes a lighting fixture 2 and an automatic flasher 3 that receives power from the power source 4 and controls the power supply to the lighting fixture 2. The luminaire 2 includes a lamp 5 for illuminating a street, a dimming ballast 6 for dimming and lighting the lamp 5, a control unit 7 for controlling the dimming ballast 6, and a human detection signal by detecting the presence of a person. And a plurality of human sensors 8 that output. The control unit 7 includes a timer 7a that measures a set time and a microcomputer 7b that controls the dimming ballast 6 and the like. The automatic flasher 3 starts supplying power to the luminaire 2 when the shift from day to night is determined by the built-in illuminance sensor, and supplies power to the luminaire 2 when determining shift from night to morning. finish. When the power is supplied from the automatic flasher 3, the microcomputer 7b causes the timer 7a to measure a predetermined time, until the predetermined time is reached as night time, and after reaching the predetermined time as midnight time, The lighting mode of the lamp 5 is changed at night time and midnight time. The human sensor 8 detects a heat ray radiated from the human body by a pyroelectric element, and detects the presence of the human body based on a change in heat dose according to the operation of the human body.

  As the lighting mode of the lamp 5, the microcomputer 7b has a full lighting mode in which the lamp 5 is fully lit and a human sensor control mode in which lighting is performed by detecting the presence of a person. In the human sensor control mode, the microcomputer 7b turns on the lamp 5 when the human sensor 8 does not detect the presence of a person, and turns on the timer 5 when the human sensor 8 detects the presence of a person. The lamp is fully lit while the predetermined lighting holding time is measured by 7a, and when the presence of a person is detected again during the lighting holding time, the lighting holding time measurement is restarted and the lamp 5 is fully lit. Let

  Next, the operation in which the microcomputer 7b controls the lighting of the lamp 5 in the street lighting system 1 having the above configuration will be described with reference to FIGS. FIG. 2 shows an operation flow of the microcomputer 7b. When the surroundings of the automatic flasher 3 are darkened and the automatic flasher 3 determines the transition from day to night, the automatic flasher 3 starts supplying power to the lighting fixture 2. When power is supplied to the luminaire 2, the microcomputer 7b starts measuring a predetermined nighttime holding time by the timer 7a (step S1). Then, it is determined whether or not the time measurement has been completed (step S2). If the measurement has not been completed, the lamp 5 is turned on in the full lighting mode as the night time (step S3). When the timer 7a finishes measuring the nighttime holding time (step S2), the microcomputer 7b lights the lamp 5 in the human sensor control mode as midnight time.

  When the human sensor control mode is entered and the human sensor 8 detects the presence of a person (step S4), the microcomputer 7b causes the timer 7a to start measuring the lighting holding time (step S5) and turns on the lamp 5 fully. (Step S6). If the human sensor 8 detects the presence of a person again during the measurement of the lighting holding time (step S4), the microcomputer 7b causes the timer 7a to restart the lighting holding time (step S5), and the lamp 5 Is continuously turned on (step S6). When the presence of a person is not detected during the lighting holding time, the lighting holding time is continuously measured (step S7). When the lighting holding time is measured, the lamp 5 is dimmed (step S8). Then, the surroundings of the automatic flasher 3 become brighter, and when the automatic flasher 3 determines the shift from night to morning, the power supply to the lighting fixture 2 is terminated and the lamp 5 is turned off.

  FIG. 3 shows nighttime and midnight lighting modes. In the night time from when the automatic flasher 3 starts supplying power to the control unit 7 until the end of the measurement of the night holding time T1, the microcomputer 7b lights the lamp 5 in the full lighting mode, and the night holding time T1. After the end of the measurement, the lamp 5 is turned on in the human sensor control mode as midnight time. When the presence sensor 8 detects the presence of a person at the time point P1 between the time point before the transition hold time T2 and the time point when the time shifts to midnight time than the time point when the night time shifts to midnight time, the microcomputer 7b extends the lighting mode in the night time for the extension time T3 from the time of detection. If the human sensor 8 further detects the presence of a person during the extension time T3, the microcomputer 7b further extends the lighting mode at night time from that point.

  As described above, according to the street lighting system 1 of the present embodiment, in the midnight time when there are not many people, the lamp 5 is turned on according to the presence of the person by the human sensor control mode, thereby consuming power. In addition to reducing the amount, the necessary lighting can be secured when there are people. In addition, the full lighting mode at night time is extended by detecting the presence of a person at a certain time before shifting to midnight time, so when the night time ends, it shifts to the midnight time human sensor control mode. The problem that the lamp 5 is dimmed until the sensor 8 detects the presence of a person again is eliminated.

  Next, a first modification of the street lighting system 1 of the first embodiment will be described with reference to FIG. In this modified example, the lighting mode at night time and midnight time is different from the lighting mode in the street lighting system 1 of the first embodiment. The microcomputer 7b has the above-described human sensor control mode and a dimming lighting mode in which the lamp 5 is dimmed. The microcomputer 7b lights the lamp 5 in the human sensor control mode at night time, and lights the lamp 5 in the dimming lighting mode at midnight. By such mode setting, the microcomputer 7b turns on the lamp 5 according to the presence / absence of a person at night time, and dimming the light at midnight regardless of the presence / absence of a person, thereby reducing power consumption. can do. In addition, because the presence sensor control mode at night time is extended by detecting the presence of a person at a certain time before the end of night time, the light shifts to the dimming lighting mode at midnight time when the night time ends. The problem of reduced output is eliminated.

  Next, a second modification will be described with reference to FIG. In this modification, the lighting mode is different from that of the first embodiment. The microcomputer 7b has the above-described human sensor control mode and lights the lamp 5 in the human sensor control mode at night time and midnight time, but changes the lighting holding time between night time and midnight time. The microcomputer 7b increases the lighting holding time because there are some people at night time, and shortens the lighting holding time at midnight time because there are not many people. Since the microcomputer 7b is in the human sensor control mode for both night time and midnight time, and the lighting holding time is shortened in the midnight time, the power consumption can be reduced. In addition, the human sensor control mode at night time is extended by detecting the presence of a person at a certain time before the night time ends, so when the night time ends, it shifts to the human sensor control mode at midnight. The problem that the lamp 5 is dimmed until the presence of the person is detected by the human sensor 8 is eliminated.

  Next, a third modification will be described with reference to FIG. In this modification, the lighting mode is different from that of the first embodiment. The microcomputer 7b has the above-described human sensor control mode and an alerting control mode in which the lamp 5 blinks to alert the person. The alert control mode will be described with reference to FIG. The horizontal axis of FIG. When the human sensor 8 detects the presence of a person, the microcomputer 7b blinks the lamp 5 that has been dimmed and lighted five times, for example, by outputs of 82.5% and 5%, and then outputs the output for 5 seconds for 5%. To alert people. While calling this attention, the microcomputer 7b does not accept the detection signal from the human sensor 8, thereby preventing the lamp 5 from blinking continuously.

  The microcomputer 7b lights the lamp 5 in the human sensor control mode at night time, and lights the lamp 5 in the alert control mode at midnight. With such mode setting, power consumption can be reduced by human sensor control at night time, and the crime prevention effect can be enhanced by alert control mode at midnight time. In addition, because the presence sensor control mode at night time is extended by detecting the presence of a person at a certain time before the night time ends, the transition to the alert control mode at midnight time by the end of the night time, There is no danger of the lamp blinking, and it becomes safe. Also, night time may be set to the full lighting mode, and midnight time may be set to the alert control mode. This mode setting can also enhance the crime prevention effect at midnight.

  Next, a fourth modification will be described with reference to FIG. In this modification, the lighting mode is different from that of the first embodiment. The microcomputer 7b has the above-described alerting control mode and lights the lamp 5 in the alerting control mode at night time and midnight time. However, the blinking cycle of the lamp 5 is changed between night time and midnight time. . The microcomputer 7b lengthens the blinking cycle during night time and shortens the blinking cycle during midnight. By such mode setting, the crime prevention effect at night time and midnight time can be enhanced, and the crime prevention effect can be further enhanced by shortening the blinking period at midnight time. In addition, the alert control mode at night time is extended by detecting the presence of a person at a certain time before the end of night time, so there is no transition to the alert control mode at midnight time by the end of night time. It is possible to shift to the midnight alert control mode without a sense of incongruity.

(Second Embodiment)
A street lighting system according to a second embodiment of the present invention will be described with reference to FIG. FIG. 9 shows the configuration of a street lighting system. Unlike the first embodiment, the street lighting system 1 is designed to reduce the cost by turning on the lamp 5 without dimming the light when the lamp is turned on. The lighting fixture 2 includes a triac 7 c in the control unit 7, and includes a blinking stabilizer 61 instead of the dimming ballast 6. The microcomputer 7b turns on the lamp 5 via the triac 7c and the blinking stabilizer 61. The microcomputer 7b has a lighting mode for lighting the lamp 5.

  In the human sensor control mode in this lighting mode, in the street lighting system according to the first embodiment, when the presence of a person is not detected, the lamp 5 is dimmed and when the presence of a person is detected. In the street lighting system 1 according to this embodiment, when the presence of a person is not detected, the lamp 5 is turned off. When the presence of a person is detected, the lamp 5 is fully turned on. Let Further, in the alert control mode, in the street lighting system according to the first embodiment, when the presence of a person is detected, the dimmed lamp 5 is output by, for example, 82.5% and 5% output. Flashes 5 times, and then alerts the person by setting the output to 5% for 10 seconds. However, in the street lighting system 1 according to the present embodiment, when the presence of a person is detected, the lamp is turned off. 5 is fully lit, for example, blinks 5 times, and then turns off for 10 seconds. Then, the street lighting system 1 according to the present embodiment applies the respective lighting modes to night time and midnight time to turn on the lamp 5 in the same manner as the street lighting system according to the first embodiment.

  In addition, this invention is not restricted to the structure of the said various embodiment, A various deformation | transformation is possible in the range which does not change the meaning of invention. For example, the lighting mode may be set by dividing time division into night time, midnight time, and morning time. Further, for example, a photo interrupter may be used for the human sensor.

The block diagram of the lighting system for streets concerning the 1st Embodiment of this invention. The flowchart of operation | movement of the microcomputer in the lighting system for streets. The figure which shows the lighting mode of night time and midnight time of the lighting system for streets. The figure which shows the lighting mode of night time and midnight time in the 1st modification of the lighting system for streets. The figure which shows the lighting mode of night time and midnight time in the 2nd modification of the lighting system for streets. The figure which shows the lighting mode of night time and midnight time in the 3rd modification of the lighting system for streets. The figure which shows the pattern of the alert mode in the lighting system for streets. The figure which shows the lighting mode of night time and midnight time in the 4th modification of the lighting system for streets. The block diagram of the lighting system for streets concerning the 2nd Embodiment of this invention. The figure which shows the lighting mode of night time and midnight time of the conventional street lighting system.

Explanation of symbols

1 Street lighting system 3 Automatic flasher 5 Lamp 6 Dimming ballast (ballast)
61 Flashing ballast (ballast)
7 Control unit 7a Timer 8 Human sensor

Claims (4)

A lamp for illuminating a street; a ballast that stabilizes lighting of the lamp; a human sensor that detects the presence of a person and outputs a human detection signal; and a controller that controls the lamp and the ballast; An automatic flasher that discriminates day and night and controls power supply to the control unit and ballast;
When the control unit determines that the automatic flashing device has shifted from day to night, the controller is supplied with power and causes the timer of the control unit to measure a predetermined time until the predetermined time is reached. In a street lighting system that changes the lighting mode of the lamp between the night time and the midnight time as the midnight time after the predetermined time is reached,
The lighting mode by the control unit is:
A full lighting mode for fully lighting the lamp;
A dimming lighting mode for dimming the lamp;
When the presence of a person is not detected by the human sensor, the lamp is turned off or dimmed, and when the presence of a person is detected by the human sensor, the lamp is turned on during the lighting holding time measured by the timer. A human sensor control mode in which full lighting is performed, and when the presence of a person is detected again during the lighting holding time, measurement of the lighting holding time is restarted and the lamp is fully lit.
The controller is
In the night time, the lamp is lit in the full lighting mode, and in the midnight time, the lamp is lit in the human sensor control mode, or
In the night time, the lamp is turned on by the human sensor control mode, and in the midnight time, the lamp is turned on by the dimming lighting mode,
When the presence sensor is detected by the human sensor during a period from a certain time before the transition to the midnight time to the transition to the midnight time, the lighting mode at the night time is extended. Characteristic street lighting system.   The controller is configured to light the lamp in the human sensor control mode at the night time and midnight time, and control the lighting holding time at the midnight time to be shorter than the lighting holding time at the night time. The street lighting system according to claim 1. The lighting mode by the control unit further includes a warning control mode for calling attention by repeatedly blinking the lamp for a certain time when the presence sensor is detected by the human sensor,
In the night time, the lamp is turned on by the human sensor control mode,
The street lighting system according to claim 1, wherein a lamp is lit in the alert control mode during the midnight time. The lighting mode by the control unit further includes a warning control mode for calling attention by repeatedly blinking the lamp for a certain time when the presence sensor is detected by the human sensor,
The lamp is lit in the alert control mode at the night time and late night time, and the flashing cycle of the lamp at the alert time at the late night time is controlled to be shorter than the flashing cycle at the night time. The street lighting system according to claim 1.

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