JP5966374B2 - Lighting system - Google Patents

Description

  The present invention relates to a technique for controlling lighting of one or a plurality of lighting fixtures by a controller.

  There is known a lighting system that centrally controls lighting of one or a plurality of lighting fixtures by a controller. This type of illumination system is widely used in both outdoor illumination systems that illuminate the outdoors and indoor illumination systems that illuminate the interior. Examples of outdoor lighting systems include road lighting systems used for road lighting, street lighting systems used for street and arcade lighting, and landscape lighting systems that illuminate shopping malls and various facilities to enhance the landscape. . Examples of the indoor lighting system include an indoor lighting system used for lighting in a living room and an in-house lighting system used for lighting in a building.

In these lighting systems, the controller controls the lighting of each of the lighting fixtures so as to reduce waste by suppressing unnecessary lighting while performing lighting required according to the purpose and purpose of lighting. In this way, lighting efficiency is improved.
In the case of a road lighting system, the controller centrally controls lighting of each lighting fixture (road light) arranged along the road. In terms of road illuminance, traffic volume is one of the factors that regulate road illuminance necessary for ensuring traffic safety. Therefore, the controller centrally controls the blinking and dimming of each lighting fixture according to the traffic volume of the lighting target road (more precisely, the traffic volume of the lighting target road predicted for each time zone). In this way, lighting necessary for road lighting is performed, and waste of lighting is reduced by not increasing the illuminance of the road more than necessary (see, for example, Patent Document 1).

JP 2011-18466 A

However, in a lighting system in which the controller centrally controls lighting of the lighting fixture, if the controller falls out of control of lighting of the lighting fixture for some reason, not only the useless lighting is reduced, Even the necessary lighting required according to the purpose cannot be realized.
Therefore, if the lighting fixture is removed from the lighting control by the controller, the necessary lighting can be maintained if the lighting fixture has a function of controlling lighting on its own. Specifically, a timing circuit for timing the time is built in the lighting fixture, and when the lighting fixture is removed from the control of the controller, the lighting fixture is in a predetermined lighting state according to the time of the timing circuitry. Thus, the structure which controls lighting independently is conceivable.
However, the unit price increases because the lighting fixture needs to include a clock circuit, and the cost increase is often significant in a lighting system including a large number of lighting fixtures. Further, in order to match the lighting states of the respective lighting fixtures, it is necessary to set the time of the clock circuit of each lighting fixture to each other, and a circuit and control for time adjustment are required.

  Further, when the lighting fixture is removed from the lighting control by the controller, the necessary lighting can be realized with a simple circuit configuration if the lighting fixture is configured to continue lighting unconditionally. However, even when the surroundings are bright, such as during the daytime, lighting fixtures are turned on, and the amount of unnecessary lighting increases.

  This invention is made | formed in view of the situation mentioned above, and it aims at providing the illumination system which can maintain required illumination, even when a lighting fixture remove | deviates from under control of a controller.

In order to achieve the above object, the present invention comprises a lighting fixture and a timing means for timing the time , lighting schedule data for controlling the lighting state of the lighting fixture according to the time, and the time of the timing means And a controller for controlling the lighting of the lighting apparatus, a time storage means for acquiring and updating and storing the time indicated by the time measuring means of the controller at regular intervals, and the time, Elapsed time after clearing the count each time the time of the time storage means is updated and stored, and the self-lighting control data storage means storing the self-lighting control data defining the correspondence with the lighting state of the lighting fixture counting means for counting, when said elapsed time counting means is counting exceeds a predetermined time, the time stored in the time memory unit, the elapsed time And characterized in that it comprises a control means for controlling the lighting of the luminaire on the basis of the self-supporting lighting control data.

Further, the present invention provides the lighting system comprising a plurality of the lighting fixtures, each of the lighting fixtures including the time storage means, the self-lighting control data storage means, the counting means, and the control means, The self-lighting control data in the self-lighting control data storage means is set by the controller.

  Further, the present invention is the above lighting system, comprising a plurality of the lighting fixtures, wherein each of the lighting fixtures is connected to the control means, and the controller controls lighting of each of the lighting fixtures through the control means. It is characterized by.

  According to the present invention, since the lighting of the lighting fixture is controlled based on the time acquired by the time acquisition means and the lighting control data even when the lighting of the lighting fixture is out of the control of the controller, the control is performed. Even if there is no clock means for measuring the time other than the machine, it is possible to realize the illumination required at least when the control is out of control without waste.

1 is a configuration diagram of a street lighting system according to a first embodiment of the present invention. It is a block diagram which shows the functional structure of a control machine. It is a conceptual diagram of lighting schedule data. It is a block diagram of a street light. It is a flowchart which shows operation | movement of a control machine. It is a flowchart which shows operation | movement of a street lamp. It is a block diagram of the street lighting system which concerns on 2nd Embodiment of this invention.

Embodiments of the present invention will be described below with reference to the drawings. Below, the street lighting system which is one of the outdoor lighting systems is illustrated as an illumination system which concerns on this invention.
[First Embodiment]
FIG. 1 is a configuration diagram of a street lighting system 1 according to the present embodiment.
As shown in the figure, the street lighting system 1 includes a controller 10 and a plurality of street lamps 20 as lighting fixtures, and the controller 10 and each of the street lamps 20 can communicate with each other via a communication line 2. It is a system in which the controller 10 centrally controls lighting of each street lamp 20 by connecting. Control of lighting of the street lamp 20 by the controller 10 includes part or all of switching between lighting and extinguishing (that is, blinking), dimming, and light color switching. Each of the street lamps 20 is appropriately arranged along a street that is a space to be illuminated, and lights up under the control of the controller 10 to illuminate the street. The controller 10 is a device configured independently of the street light 20. As long as the lighting of each street light 20 can be controlled, the controller 10 is not limited to a street that is a space to be illuminated and can be installed in any place, for example, in a building. It is installed in a control box or the like provided on the street side.
Note that the communication between the controller 10 and the street light 20 is not limited to wired communication through the communication line 2 and wireless communication can also be used.

FIG. 2 is a block diagram schematically showing a functional configuration of the controller 10.
As shown in the figure, the controller 10 includes a microcomputer 11, a first communication circuit 12, an RTC (Real Time Clock) 13, and a second communication circuit 14.
The microcomputer 11 is a circuit that operates based on a predetermined program, and functions as a control unit that centrally controls each unit. The microcomputer 11 includes a data storage unit 15 that includes a RAM, a ROM, and the like and stores various data. The data storage unit 15 stores lighting schedule data 16 for controlling lighting of each street lamp 20 according to time.
The first communication circuit 12 is a circuit that constitutes means for communicating with each of the street lamps 20 through the communication line 2 in accordance with a predetermined communication standard under the control of the microcomputer 11. For this communication standard, for example, RS-485, which is one of the communication standards standardized by the Electronic Industries Association (EIA), is used.

The RTC 13 constitutes time measuring means for measuring the current time and outputting it to the microcomputer 11. The RTC 13 is provided on the board of the microcomputer 11, for example. While the power supply to the board is cut off, the RTC 13 always operates by receiving power supply from the battery provided on the board, thereby counting the time at all times. Then, it is prevented that a deviation occurs from the actual time.
The second communication circuit 14 is a circuit that constitutes means for communicating with the external terminal 17 under the control of the microcomputer 11. The external terminal 17 is a terminal for setting the lighting schedule data 16 and storing it in the data storage unit 15. As the external terminal 17, an arbitrary terminal such as a portable personal computer is used. Also, any communication standard can be used for communication between the second communication circuit 14 and the external terminal 17.

FIG. 3 is a conceptual diagram of the lighting schedule data 16.
As described above, the lighting schedule data 16 is data for controlling the lighting of the street lamp 20 according to the time, and defines the correspondence between the time and the lighting state of the street lamp 20. In this embodiment, a street lamp address 18 for uniquely identifying each street lamp 20 is allocated in advance to each of the street lamps 20, and the lighting schedule data 16 includes a street lamp as shown in FIG. Correspondence between time and lighting state is defined for each address 18. As a result, not all street lights 20 are brought into a uniform lighting state, but can be brought into an appropriate lighting state according to the brightness, traffic volume, etc. around each installation location.

  The regulation of the correspondence between the time and the lighting state is defined by assigning the illumination output for each time zone divided into a plurality of days. This time zone can be appropriately set according to the installation environment and usage of the street lighting system 1. In this embodiment, in order to control lighting for each day with or without sunshine and traffic volume, the day is divided every 6 hours starting from midnight, and the lighting output is defined in each time zone. In this embodiment, the illumination output is defined by the duty ratio of the PWM signal used for dimming control of the street lamp 20, and when the duty ratio is 0%, it means lighting at 100% (maximum) output. When the duty ratio is 100%, it means turning off.

  Whenever one of the time zones defined in the lighting schedule data 16 starts based on the current time measured by the RTC 13, the controller 10 outputs the lighting output associated with the time zone to each street light 20. Is transmitted as the lighting control signal 30 through the first communication circuit 12. The lighting control signal 30 includes a street lamp address 18 indicating a destination street lamp 20 and a duty ratio of the PWM signal that defines the lighting output of the street lamp 20 and is transmitted to each street lamp 20. When receiving the lighting control signal 30, the destination street lamp 20 performs dimming based on the duty ratio of the PWM signal. The illumination output instruction is not limited to the configuration in which the duty ratio of the PWM signal is transmitted, for example, the configuration in which the signal indicating the dimming rate is transmitted, or the lighting / output is assumed on the assumption that the size of the illumination output is constant. It may be configured to instruct only turning off.

  In addition, the controller 10 transmits a time notification signal 19 including the current time indicated by the RTC 13 from the first communication circuit 12 to the street lamps 20 through the communication line 2 all at once. The time notification signal 19 is transmitted intermittently. In this embodiment, the controller 10 transmits the time notification signal 19 every time a predetermined time Ta (for example, 1 hour) elapses.

Returning to FIG. 2, the controller 10 further includes a lightning protection circuit 40, a PWM input unit 42, and a contact input unit 43.
The lightning protection circuit 40 is a circuit that prevents a high voltage (so-called surge voltage) that can be transiently generated in the communication line 2 during a lightning strike from being input to the first communication circuit 12 and causing the first communication circuit 12 to fail. is there. Specifically, the lightning protection circuit 40 includes a surge absorbing resistor 41 that is connected in series to the connection portion of the communication line 2 and the first communication circuit 12 and serves as a surge absorbing means that absorbs a surge voltage. The surge absorbing means is not limited to the surge absorbing resistor 41, and may be constituted by any of an arrester, a varistor, and a surge absorber, or a surge absorbing component such as the surge absorbing resistor 41, the arrester, the varistor, and the surge absorber. It may be configured by appropriately combining necessary components from the inside.

Each of the PWM input unit 42 and the contact input unit 43 is a means for receiving an input of a signal for controlling lighting of the street lamp 20 (hereinafter referred to as “external input lighting control signal” and denoted by reference numeral 44). The PWM input unit 42 is a means for receiving an input of a PWM signal when the street lamp 20 is dimmed by PWM control or a duty ratio of the PWM signal, and the contact input unit 43 is turned on / off of the street lamp 20 (ie, Is a means for receiving a binary signal instructing blinking).
When the external input lighting control signal 44 is input, the controller 10 lights each street lamp 20 based on the external input lighting control signal 44 regardless of the lighting state defined in the lighting schedule data 16. To control.

  As a result, the external input lighting control signal 44 is input from the external device to the PWM input unit 42 and the contact input unit 43 as necessary, so that the street lamp 20 is lit regardless of the rules of the lighting schedule data 16. Can be controlled. For example, if the lighting schedule data 16 is turned on when a traffic signal is detected by a security device or a human sensor even when the street light 20 is turned off, it is turned on when it is manually operated. The crime prevention signal of the device, the output of the human sensor, or the output of the manual operation switch is input to the contact input unit 43. Further, for example, when lighting control is performed by specifying lighting control of the street lamp 20 based on ambient brightness or other dimmers regardless of the rules of the lighting schedule data 16, an external input for specifying the lighting control is used. The lighting control signal 44 is input to the PWM input unit 42. In addition, when the street sensor 20 is turned on with dimming specified when a human sensor detects traffic, an external input lighting control signal 44 is input to the PWM input unit 42.

FIG. 4 is a block diagram showing a functional configuration of the street lamp 20.
As shown in the figure, the street lamp 20 includes a lamp unit 21 as a light source, a ballast 22, and a power source unit 23.
The lamp unit 21 includes, for example, a discharge lamp having an output necessary for street lighting such as a ceramic metal halide lamp and an HID lamp as a light source. The ballast 22 turns on the lamp unit 21, and the power supply unit 23 is supplied with commercial power from the outside and supplies the ballast 22 with lighting power of the lamp unit 21.

The ballast 22 includes a lighting unit 24, a lighting control unit 25, a third communication circuit 26, and a lightning protection circuit 27.
The lighting unit 24 is a circuit that supplies power to the lamp unit 21 to discharge and discharge the discharge lamp of the lamp unit 21, and supplies power so as to maintain particularly stable discharge.
The lighting control unit 25 controls the lighting unit 24 to control lighting and extinguishing of the lamp unit 21 and dimming (illumination output).
The third communication circuit 26 communicates with the controller 10 through the communication line 2 under the control of the lighting control unit 25, receives the lighting control signal 30 and the time notification signal 19, and outputs them to the lighting control unit 25.
The lightning protection circuit 27 includes a surge absorption resistor 41 similar to the lightning protection circuit 40 included in the controller 10 and absorbs a surge voltage generated in the communication line 2.
When the lighting control signal 30 is input, the lighting control unit 25 controls the lighting unit 24 based on an instruction of the lighting control signal 30. Thereby, central control of each street light 20 by the controller 10 is performed.

Next, the lighting control unit 25 will be described in further detail.
The control unit 50 centrally controls each part of the ballast 22, and the timer 51 starts timer counting under the control of the control unit 50 and counts elapsed time. As the timer 51, a timer circuit incorporated in a microcomputer or an IC circuit can be used. The storage unit 52 stores various data required for lighting control. In this embodiment, the storage unit 52 stores, in particular, the independent lighting control schedule data 53 and the notification time 54.

The self-sustained lighting control schedule data 53 is data that is referred to by the control unit 50 in order for the lighting control unit 25 to perform self-sustained lighting control when the lighting control of the street lamp 20 is out of the controller 10. . In the self-sustained lighting control schedule data 53, as in the lighting schedule data 16 stored in the controller 10, as shown in FIG. 4, the correspondence between the time and lighting state of at least the street lamp 20 is defined. Yes. In the figure, lighting / extinguishing for each time zone is defined as the correspondence between the time and the lighting state. Note that dimming at the time of lighting may be designated in the schedule data 53 for independent lighting control.
The independent lighting control schedule data 53 is set to an initial value when the street light 20 is shipped from the factory, and can be updated and set from the controller 10 through the communication line 2 after installation, for example.

The notification time 54 is the time indicated by the time notification signal 19 transmitted from the controller 10 every predetermined time Ta. Each time the time notification signal 19 is received, the control unit 50 updates and stores the time indicated by the time notification signal 19 in the storage unit 52 as the notification time 54.
Under the control of the control unit 50, the timer 51 clears the counter value every time the notification time 54 is updated and stored in the storage unit 52, starts counting, and counts the elapsed time Tb from the update storage timing. . By adding this elapsed time Tb to the notification time 54, the current time is specified.

  Here, when the count value of the timer 51 exceeds a certain time Ta, which is the transmission interval of the time notification signal 19, that is, when the time notification signal 19 is not transmitted even after the scheduled time, the controller 10 and the street This indicates that communication cannot be received from the controller 10 due to some reason such as a communication failure occurring between the street lights 20. In this state, it is impossible to receive the lighting control signal 30 from the controller 10, and the street light 20 is removed from the lighting control of the controller 10. In the state where it is out of the control of the controller 10, when the time zone defined by the lighting schedule data 16 is straddled, the street is not properly illuminated. In particular, in the outdoor lighting system such as the street lighting system 1, since many street lamps 20 are installed in a relatively wide range, it takes time to investigate the cause of the failure. Becomes prominent.

  Therefore, in this embodiment, when the elapsed time Tb counted by the timer 51 exceeds the predetermined time Ta, the control unit 50 of the street lamp 20 sets the timer 51 at the self-sustained lighting control schedule data 53 and the notification time 54. Based on the time when the elapsed time Tb is added, lighting is controlled autonomously, and appropriate lighting is maintained even when the controller 10 is out of control.

Next, the operation of the street lighting system 1 will be described in detail.
FIG. 5 is a flowchart showing the operation of the controller 10.
The microcomputer 11 of the controller 10 acquires the current time from the RTC 13 (step Sa1), and determines whether or not the transmission timing of the time notification signal 19 has arrived (step Sa2). This determination can be made, for example, based on whether or not the difference between the time when the time notification signal 19 was transmitted last time and the current time acquired at step Sa1 has reached a certain time Ta. When the transmission timing of the time notification signal 19 has arrived (step Sa2: YES), the microcomputer 11 includes the current time acquired in step Sa1 in the time notification signal 19 and transmits all the street lights 20 through the communication line 2 all at once. (Step Sa3).

  When the transmission timing of the time notification signal 19 has not arrived (step Sa2: NO), the microcomputer 11 refers to the lighting schedule data 16 to control the lighting of the street lamp 20 according to the time (step Sa4). And the microcomputer 11 determines whether the time slot | zone prescribed | regulated by the lighting schedule data 16 changed next based on the present time acquired by step Sa1 (step Sa5). When the time zone transitions (step Sa5: YES), the microcomputer 11 in the lighting schedule data 16 controls the lighting state specified in the transition time zone to indicate the lighting control signal 30. Is transmitted to each street light 20 through the communication line 2 (step Sa6). If the time zone has not changed (step Sa5: NO), the microcomputer 11 returns the processing step to step Sa1 to determine that the next transmission timing of the time notification signal 19 has arrived.

  Through the above processing, the controller 10 transmits the time notification signal 19 indicating the current time every fixed time Ta to the street lamps 20 all at once, and every time the time zone in the lighting schedule data 16 changes, A lighting control signal 30 for controlling the lighting state defined in the transition time zone is transmitted for each street lamp 20.

FIG. 6 is a flowchart showing the operation of the street lamp 20.
In addition, since operation | movement of each of the some street lamp 20 is the same, below, it demonstrates on behalf of one.
As shown in the figure, when the lighting control unit 25 of the street light 20 receives the time notification signal 19 from the controller 10 (step Sb1: YES), the time indicated by the time notification signal 19 is stored as the notification time 54. 52 is updated and stored (step Sb2), and after the timer 51 is reset, counting of the elapsed time Tb is started (step Sb3).
Next, the lighting control unit 25 determines whether or not the elapsed time Tb has exceeded a certain time Ta that is the transmission interval of the time notification signal 19 (step Sb4). When the elapsed time Tb is less than the predetermined time Ta (step Sb4: NO), when the lighting control unit 25 receives the lighting control signal 30 (step Sb5: YES), the lamp unit 21 is based on the lighting control signal 30. Is controlled (step Sb6), and the processing step is returned to step Sb1 to wait for the time notification signal 19.

On the other hand, when the elapsed time Tb exceeds the predetermined time Ta (step Sb4: YES), communication can be received from the controller 10 for some reason, such as a communication failure occurring between the controller 10 and the street light 20. This indicates that the control unit 10 is out of control.
Therefore, in this case, the lighting control unit 25 performs the following process in order to execute independent lighting control. That is, the lighting control unit 25 calculates the current time by adding the elapsed time Tb counted by the timer 51 to the notification time 54 updated and stored in step Sb2 (step Sb7). Next, the lighting control unit 25 refers to the independent lighting control schedule data 53 and controls the lighting of the lamp unit 21 to the lighting state corresponding to the time calculated in step Sb7 (step Sb8). As a result, when the street light 20 is removed from the control of the controller 10, the lighting control is performed independently based on the schedule data 53 for the independent lighting control. Appropriate lighting will continue.

  After step Sb7, the lighting control unit 25 returns the processing step to step Sb1 to determine whether or not the time notification signal 19 can be normally received. Until the time notification signal 19 can be received (that is, until the determination result of step Sb1 becomes YES), the elapsed time Tb counted by the timer 51 is maintained in a state exceeding a certain time Ta, and step Sb4 is It is continuously determined as YES, and the independent lighting control by step Sb7 and step Sb8 is continued.

  As described above, according to the present embodiment, the notification time 54 based on the time notification signal 19 notified from the controller 10 even when the lighting of the street light 20 is out of the control of the controller 10 for some reason. Based on the elapsed time Tb and the independent lighting control schedule data 53, the street light 20 controls lighting on its own. Thereby, even if the street light 20 does not have a means for measuring the current time, the necessary lighting can be continued without waste.

Further, according to the present embodiment, since the count of the elapsed time Tb is started from the time when the notification time 54 is updated and stored, even if the street light 20 does not have a clock, the elapsed time Tb is added to the notification time. The current time can be calculated, and lighting defined by the independent lighting control schedule data 53 can be controlled in a state in which a deviation from the actual time is suppressed.
In particular, since the time notification signal 19 is transmitted from the controller 10 every predetermined time Ta, it is possible to determine whether or not the elapsed time Tb has exceeded the predetermined time Ta without providing any additional means. Communication failure between 10 and the street lamp 20 can be detected.

[Second Embodiment]
In the above-described embodiment, the configuration in which the controller 10 controls the lighting by transmitting the lighting control signal 30 to each of the plurality of street lamps 20 has been described. In contrast, in the present embodiment, a configuration in which the controller 10 indirectly controls lighting of a plurality of street lights will be described.

FIG. 7 is a diagram showing a configuration of the street lighting system 100 according to the present embodiment. In addition, in the same figure, the same code | symbol is attached | subjected about what was demonstrated in 1st Embodiment, and the description is abbreviate | omitted.
As shown in the figure, the street lighting system 100 includes a controller 10, a sub-controller 160, and a plurality of street lamps 120. The controller 10 and the sub controller 160 are connected to each other via the communication line 2 so that they can communicate with each other. The lighting control signal 30 and the time notification signal 19 transmitted from the controller 10 are transmitted to the sub controller 160. Receive.

  The sub controller 160 controls lighting of the plurality of street lamps 120 based on the lighting control signal 30 of the controller 10. Specifically, the sub controller 160 includes a lighting control unit 25, a third communication circuit 26, and a lightning protection circuit 27 provided in the street light 20 of the first embodiment, as shown in FIG. A ballast 122 of a plurality of street lamps 120 is connected to the lighting control unit 25 through a control line 103. Unlike the ballast 22 of the first embodiment, the ballast 122 of the street light 120 does not include the lighting control unit 25, the third communication circuit 26, and the lightning protection circuit 27 provided in the sub-control device 160. A lighting unit 24 that lights the lamp unit 21 with a signal from 160 lighting control units 25 is provided.

  In the street lighting system 100, a plurality of sub controllers 160 are connected to the communication line 2 of the controller 10, and a plurality of street lights 120 are connected to each sub controller 160. When there are a plurality of illumination target spaces (for example, alleys) of the street lighting system 100, a sub controller 160 and a street lamp 120 are provided for each space, and the lighting of each space is centrally controlled by the controller 10. Be controlled.

Under such a configuration, in the street lighting system 100, the controller 10 operates in the same manner as the operation described with reference to FIG. 5 in the first embodiment, and the sub-controller 160 operates as described in FIG. It operates in the same way.
That is, in the street lighting system 100, the sub controller 160 receives the lighting control signal 30 of the controller 10, and the sub controller 160 drives the ballast 122 of each street light 120 to control lighting. The controller 10 centrally controls each street light 120 through the sub controller 160. In addition, when a communication failure occurs between the controller 10 and the sub controller 160 and the street lights 120 are removed from the control of the controller 10, the sub controller 160 autonomously The lighting of the street lamp 120 will be controlled.

According to this embodiment, in addition to the effect demonstrated in 1st Embodiment, there exist the following effects.
That is, since the ballast 122 of each street light 120 does not need to include the lighting control unit 25, the third communication circuit 26, and the lightning protection circuit 27, the cost of the street light 120 can be suppressed.

  Each of the above-described embodiments is merely illustrative of one aspect of the present invention, and can be arbitrarily modified and applied without departing from the spirit of the present invention.

For example, in each of the above-described embodiments, the lighting control unit 25 indicates the elapse of the fixed time Ta when the time notification signal 19 is transmitted by starting the count of the elapsed time Tb from the time when the notification time 54 is updated and stored. The system is configured to monitor and detect that the controller 10 is out of the control due to the disconnection with the controller 10.
However, the present invention is not limited to this, and it may be detected by a separate means that communication between the controller 10 and the lighting control unit 25 is interrupted due to a communication failure or the like. For example, under the control of the lighting control unit 25, the third communication circuit 26 periodically transmits a confirmation signal for confirming communication to the controller 10 and confirms whether there is a response from the controller 10. Thus, the disconnection between the controller 10 and the lighting control unit 25 can be detected.

In each of the above-described embodiments, the timer 51 starts counting the elapsed time Tb from the time when the notification time 54 is updated and stored. However, the present invention is not limited to this. That is, when a means for detecting disconnection between the controller 10 and the lighting control unit 25 is separately provided, counting of the elapsed time Tb may be started from when the disconnection is detected by the means.
In each of the above-described embodiments, the time notification signal 19 and the lighting control signal 30 are described as being transmitted separately. However, the time notification signal 19 and the lighting control signal 30 may be transmitted as a set.
Moreover, in each embodiment mentioned above, lighting control of the street lamp 20 based on the schedule data 53 for independent lighting control controls lighting / extinguishing for each time zone, and lighting in addition to lighting / extinguishing for every time zone. It demonstrated as what controls the time light control (light control rate). However, the lighting control of the street lamp 20 based on the schedule data 53 for independent lighting control is not limited to this. For example, a street lamp 20 that can change the light color is adopted, and lighting / extinguishing for each time zone is adopted. In addition, the light color at the time of lighting may be controlled. Furthermore, when the street lamp 20 is turned on, both the dimming rate and the light color may be designated. Further, when a street light 20 that can change the color of light is adopted, a light color instruction signal input that receives a light color instruction signal (external input lighting control signal) that instructs the light color of the street light 20 is adopted. A part may be provided. For example, when the street lamp 20 is capable of selectively changing the light color from a predetermined number of light colors, the light color instruction signal can be input to the light color instruction signal input unit by appropriately changing the signal level. Provide external equipment.
Each of the light colors of the street light 20 is associated with a light color instruction signal of a different level and is recognized by the controller 10, so that the street light 20 is operated by operating an external device that outputs the light color instruction signal. It is possible to cause the controller 10 to perform the light color control.

Further, for example, in each of the above-described embodiments, the street lighting systems 1 and 100 are exemplified as the lighting system. However, the present invention is also applied to other outdoor lighting systems such as a road lighting system and an indoor lighting system that illuminates the interior. it can.
Moreover, although the case where the light source of the lamp part 21 was a discharge lamp was illustrated, not only this but light emitting elements, such as LED, can also be used for a light source. When the light source is a light emitting element, a power supply circuit for driving the light emitting element with DC power is provided in place of the ballasts 22 and 122.

1,100 Street lighting system (lighting system)
2 Communication line 10 Controller 13 RTC (Time measuring means)
19 Time signal 20, 120 Street light (lighting fixture)
DESCRIPTION OF SYMBOLS 21 Lamp part 22, 122 Ballast 23 Power supply part 24 Lighting part 25 Lighting control part 26 3rd communication circuit 27, 40 Lightning protection circuit 30 Lighting control signal 50 Control part (control means)
51 Timer (counting means)
52 storage unit (time storage means, data storage means for independent lighting control)
53 Schedule data for independent lighting control 54 Notification time 103 Control line 160 Sub controller Ta Fixed time Tb Elapsed time

Claims (3)

Lighting equipment,
A controller that controls the lighting of the lighting fixture based on the lighting schedule data for controlling the lighting state of the lighting fixture according to the time, and the timing of the lighting fixture; In a lighting system comprising
Time storage means for acquiring and updating and storing the time indicated by the time measuring means of the controller at regular intervals ;
Data storage means for independent lighting control storing data for independent lighting control that defines the correspondence between the time and the lighting state of the lighting fixture;
Count means for counting the elapsed time after clearing the count every time the time of the time storage means is updated and stored ;
When the elapsed time counted by the counting means exceeds a predetermined time, the lighting of the lighting fixture is controlled based on the time stored in the time storage means, the elapsed time, and the data for independent lighting control. Control means to
A lighting system comprising: A plurality of the lighting fixtures,
Each of the lighting fixtures
The time storage means, the independent lighting control data storage means, the counting means, and the control means,
  The self-lighting control data in the self-lighting control data storage means is set by the controller.
The illumination system according to claim 1. A plurality of the lighting fixtures,
The lighting system according to claim 1 , wherein each of the lighting fixtures is connected to the control means, and the controller controls lighting of each of the lighting fixtures through the control means.

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