JP2009054496A - Lighting control system - Google Patents

Lighting control system Download PDF

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JP2009054496A
JP2009054496A JP2007221869A JP2007221869A JP2009054496A JP 2009054496 A JP2009054496 A JP 2009054496A JP 2007221869 A JP2007221869 A JP 2007221869A JP 2007221869 A JP2007221869 A JP 2007221869A JP 2009054496 A JP2009054496 A JP 2009054496A
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vehicle body
lighting
vehicle
body detection
detection information
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Junichi Kato
潤一 加藤
Juichi Kawashima
寿一 川島
Yuichi Ejiri
裕一 江尻
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Panasonic Electric Works Co Ltd
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Panasonic Electric Works Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting control system for lighting a tunnel or a night-time road while omitting useless lighting and further saving on electric power. <P>SOLUTION: The lighting control system is provided with: a plurality of luminaires each having a vehicle body detecting sensors; and a transfer signal line for transferring vehicle body detection information detected by the vehicle body detecting sensors between the luminaires. Each luminaire has a control part for controlling other luminaires via the transfer signal line in accordance with the vehicle body detection information detected by the vehicle body detecting sensors. When the vehicle body detecting sensors detect a vehicle body (S1), the control part controls the self-luminaire and other n-number front luminaires to be lit on (S2). When receiving the detection information from the transfer signal line, it sets a holding time for lighting the self-luminaire on (S5) and delivers the detection information in sequence until a counter number N as a set number minus one is zero. In this way, the n-number is set as a required minimum number to secure the visibility of a driver, thus omitting useless lighting and further saving on electric power. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、トンネルや夜間の道路を照明する照明制御システムに関する。   The present invention relates to an illumination control system for illuminating a tunnel or night road.

従来のトンネルの照明設備において、必要なときにのみ照明器具を点灯し、不要なときに消灯するようにして電力消費を削減するものが知られている。例えば、車両検出用センサにより通過車輌のトンネル内への進入を検知し、受光センサにより晴天と雲天とを検知し、天候状態によりトンネル内の照明を制御する照明設備が知られている（特許文献１参照）。しかし、この照明設備は、晴天時等に照度を上げる際、全照明灯を一斉に点灯するため、長いトンネル内等では、遠く離れた車輌走行に照明を必要としない地点をも点灯するため無駄に電力を消費することがあった。   In a conventional tunnel lighting facility, it is known to reduce power consumption by turning on a lighting fixture only when necessary and turning it off when unnecessary. For example, there is known a lighting facility that detects entry of a passing vehicle into a tunnel with a vehicle detection sensor, detects clear sky and cloudy sky with a light receiving sensor, and controls lighting in the tunnel according to weather conditions (Patent Literature). 1). However, since this lighting equipment lights up all the lights at the same time when increasing the illuminance in sunny weather, it is useless because it also lights up points that do not require lighting for long-distance vehicle travel in long tunnels. In some cases, it consumed power.

また、トンネル内の照明灯を所定の距離ごとにブロックに分割し、ブロックの出入り口に設けた車輌感知センサで車輌を検知し、車輌の走行の有無に応じてブロック毎に点灯制御して節電するトンネル灯制御装置が知られている（特許文献２参照）。しかしながら、この装置は、ブロック毎にブロック内の全照明灯を同時に点灯制御するので、節電が十分でないことがあった。また、車輌感知センサを個別にトンネルに設置するので、センサ用の設置工事を必要とする。
特開２００４−１２７８４５号公報 特開平１０−３３４７１１号公報 Also, the lighting in the tunnel is divided into blocks at predetermined distances, vehicles are detected by vehicle detection sensors provided at the entrances and exits of the blocks, and lighting is controlled for each block according to whether the vehicle is running or not to save power A tunnel light control device is known (see Patent Document 2). However, since this apparatus controls lighting of all the illumination lamps in each block at the same time, power saving may not be sufficient. In addition, since the vehicle sensor is individually installed in the tunnel, installation work for the sensor is required.
JP 2004-127845 A JP-A-10-334711

本発明は、上記の問題を解決するためになされたものであり、トンネル内や夜間の道路照明等において、より無駄な点灯を省き、より省電力化できる照明制御システムを提供することを目的とする。   The present invention has been made to solve the above-described problem, and an object of the present invention is to provide a lighting control system that can save more power and save more power in tunnels and night road lighting. To do.

上記目的を達成するために請求項１の発明は、車体検知センサを有する複数の照明器具と、該車体検知センサで検知された車体検知情報を前記照明器具間に伝送する伝送信号路と、を備えた照明制御システムにおいて、前記照明器具は、前記車体検知センサで検知された車体検知情報に基き前記伝送信号路を介して照明器具を制御する制御部を備え、前記制御部は、前記車体検知センサが車体を検知したとき、自照明器具と車の進行方向にある他の１つ又は複数の照明器具を、明状態に制御するものである。   In order to achieve the above object, the invention of claim 1 includes a plurality of lighting fixtures having a vehicle body detection sensor, and a transmission signal path for transmitting vehicle body detection information detected by the vehicle body detection sensor between the lighting fixtures. The lighting control system includes a control unit that controls the lighting device via the transmission signal path based on vehicle body detection information detected by the vehicle body detection sensor, and the control unit includes the vehicle body detection When the sensor detects the vehicle body, the lighting device and one or more other lighting devices in the traveling direction of the vehicle are controlled to be in a bright state.

請求項２の発明は、請求項１に記載の照明制御システムにおいて、前記制御部は、隣接する車体検知センサにより検出された車体の検知タイミングの時間差と予め定められた照明器具間距離とにより車速を求め、この車速に応じて車の進行方向の照明器具を明状態に移行させるタイミングを変えるものである。   According to a second aspect of the present invention, in the illumination control system according to the first aspect, the control unit is configured to determine a vehicle speed based on a time difference between vehicle body detection timings detected by adjacent vehicle body detection sensors and a predetermined distance between lighting fixtures. The timing at which the lighting device in the traveling direction of the vehicle is shifted to the bright state is changed according to the vehicle speed.

請求項１の発明によれば、車の進行方向の明状態に制御する照明器具の台数を、運転者が進行道路の視認性を確保できる必要最小限の台数に設定しておけば、無駄な点灯を省き、省電力化を図ることができる。また、個々の照明器具を順次点灯できるので、滑らかな照明が得られて、進行先の道路を見易くなる。また、照明器具は車体検知センサを有しているので、車体検知センサ用の設置工事は不要となり、工事費を安くできる。   According to the invention of claim 1, it is useless if the number of lighting fixtures to be controlled in a bright state in the traveling direction of the vehicle is set to the minimum number necessary for the driver to ensure the visibility of the traveling road. It is possible to save lighting and save power. Moreover, since each lighting fixture can be lighted sequentially, smooth illumination is obtained and it becomes easy to see the road ahead. Moreover, since the lighting fixture has a vehicle body detection sensor, installation work for the vehicle body detection sensor is unnecessary, and the construction cost can be reduced.

請求項２の発明によれば、通常の車速において車の進行方向の照明器具を明状態に移行させるタイミングを、一定時間遅らせて制御するものとしたとき、車速が通常より遅いときは、さらに移行タイミングを遅らせて省電力化でき、また、車速が通常より速いときは、移行タイミングを遅らせないものとすることで、運転者の進行道路の視認性を良くしつつ、省電力化することができる。   According to the second aspect of the present invention, when the timing at which the lighting device in the traveling direction of the vehicle is shifted to the bright state at the normal vehicle speed is controlled by delaying by a certain time, the shift is further performed when the vehicle speed is slower than normal. Power can be saved by delaying the timing, and when the vehicle speed is faster than usual, the transition timing is not delayed so that the visibility of the driver's traveling road can be improved and power can be saved. .

以下、本発明の第１の実施形態に係る照明制御システム（以下、本システムという）について、図１及び図２を参照して説明する。本システム１は、車体検知センサ１１を有する複数の照明器具１０と、車体検知センサ１１で検知された車体検知情報を照明器具間に伝送する伝送信号線（伝送信号路）２０とを備え、車体を検知して照明灯を点灯制御するものである。   Hereinafter, an illumination control system according to a first embodiment of the present invention (hereinafter referred to as the present system) will be described with reference to FIGS. 1 and 2. The system 1 includes a plurality of lighting fixtures 10 having a vehicle body detection sensor 11 and a transmission signal line (transmission signal path) 20 for transmitting vehicle body detection information detected by the vehicle body detection sensor 11 between the lighting fixtures. Is detected to control lighting of the illumination lamp.

照明器具１０は、道路上を走行する車体の存在を検知する車体検知センサ１１と、道路上を照らす照明灯１２と、照明灯１２を点滅調光する点滅調光安定器１３と、伝送信号線２０を介して他の器具を制御する制御部１４と、伝送信号線２０に接続され各照明器具１０の制御部１４からの制御信号等を送受する通信部１５とを有する。また、照明器具１０は、道路に沿って間隔をおいて複数個配置され、ここでは、進行方向に同じ照明器具１０が、１０ａ、１０ｂ、１０ｃ、１０ｄ、１０ｅ・・のように順に配置されている。これら照明器具１０には、伝送信号線２０が通信部１５を介して順に送り配線されている。   The luminaire 10 includes a vehicle body detection sensor 11 that detects the presence of a vehicle body traveling on a road, an illuminating lamp 12 that illuminates the road, a flashing dimming stabilizer 13 that flashes and dims the illuminating lamp 12, and a transmission signal line. And a communication unit 15 that is connected to the transmission signal line 20 and transmits and receives a control signal from the control unit 14 of each lighting device 10. In addition, a plurality of lighting fixtures 10 are arranged at intervals along the road. Here, the same lighting fixtures 10 are arranged in order such as 10a, 10b, 10c, 10d, 10e,. Yes. In these lighting fixtures 10, transmission signal lines 20 are sequentially sent and wired via the communication unit 15.

車体検知センサ１１は、車体の通過の有無を検知し、その車体検知情報を出力するものであり、このセンサ部材としては、例えば、超音波センサ・近赤外センサ・ミリ波センサ・焦電センサ等を用いることができる。この車体検知センサ１１で検知された車体検知情報の出力は、制御部１４に入力される。   The vehicle body detection sensor 11 detects whether or not the vehicle body has passed and outputs vehicle body detection information. Examples of the sensor member include an ultrasonic sensor, a near infrared sensor, a millimeter wave sensor, and a pyroelectric sensor. Etc. can be used. The output of the vehicle body detection information detected by the vehicle body detection sensor 11 is input to the control unit 14.

制御部１４は、自器具１０ａの車体検知センサ１１から入力される車体検知情報に基き、点滅調光安定器１３を制御して、照明灯１２を点灯制御して自器具１０ａを明状態とする。また、制御部１４は、他の照明器具を制御する制御信号を送出し、伝送信号線２０を介して進行方向に存在するｎ台（ｎは、１又は複数）の他の照明器具を明状態に制御する。台数ｎは、車体を検知した照明器具から何台先までの器具を明状態にするかを示す数字である。また、この台数ｎは、１又は複数なので、任意に選ぶことができる。従って、ユーザが、現場の状況、例えば、道路幅、道路制限速度、照明器具間の距離、及び交通量等に基いて、運転者の進行道路の視認性を考慮した必要最低限の台数として定めることができる。ここで、明状態にする台数ｎを２（台）とすると、制御部１４は、自器具１０ａが、車体検知センサ１１で車体を検知した場合、自器具１０ａと共に、進行方向の２台先までの照明器具、即ち、照明器具１０ｂ、１０ｃを明状態にする。ここで、明状態とは、車体走行用に設定された点滅調光安定器１の出力電圧により照明灯１２を駆動して、照明器具１０を明るく点灯することを言う。   Based on the vehicle body detection information input from the vehicle body detection sensor 11 of the own device 10a, the control unit 14 controls the blinking dimming stabilizer 13 to turn on the illumination lamp 12 to make the own device 10a bright. . In addition, the control unit 14 transmits a control signal for controlling other lighting fixtures, and the n other lighting fixtures (n is one or more) existing in the traveling direction via the transmission signal line 20 are in a bright state. To control. The number n is a number indicating the number of fixtures from the lighting fixture that detects the vehicle body to the bright state. Further, since the number n is one or more, it can be arbitrarily selected. Therefore, the user determines the minimum number of vehicles in consideration of the visibility of the driver's traveling road, based on the situation at the site, for example, road width, road speed limit, distance between lighting fixtures, and traffic volume. be able to. Here, if the number n to be in the bright state is 2 (units), the control unit 14 can detect up to 2 units ahead in the traveling direction together with the own device 10a when the own device 10a detects the vehicle body by the vehicle body detection sensor 11. The lighting fixtures, that is, the lighting fixtures 10b and 10c are brought into a bright state. Here, the bright state refers to driving the illuminating lamp 12 with the output voltage of the flashing dimming ballast 1 set for vehicle body running, and lighting the luminaire 10 brightly.

上記のように構成された本システム１における照明制御の動作手順について、図３のフローチャートを参照して説明する。制御部１４は、自器具１０ａの車体検知センサ１１が車体を検知すると（Ｓ１）、点滅調光安定器１３を制御して照明灯１２を点灯し、自器具１０ａを明状態にして、明状態の保持時間を設定する（Ｓ２）。この保持時間は、予め照明器具間隔の距離や、道路の制限速度などを考慮して設定される。この保持時間設定後、制御部１４は、自器具１０ａの車体検知センサ１１で検出された車体検知情報と、この検知情報を車の進行方向の照明器具に送る台数ｎ（ここでは、ｎ＝２）とを、伝送信号線２０を介して進行方向の照明器具に順次送出する（Ｓ３）。   An operation procedure of illumination control in the system 1 configured as described above will be described with reference to a flowchart of FIG. When the vehicle body detection sensor 11 of the own device 10a detects the vehicle body (S1), the control unit 14 controls the blinking dimming stabilizer 13 to turn on the illuminating lamp 12. Is set (S2). This holding time is set in advance in consideration of the distance between the lighting fixtures and the speed limit of the road. After the holding time is set, the control unit 14 detects the vehicle body detection information detected by the vehicle body detection sensor 11 of the own device 10a and the number n (here, n = 2) of sending the detection information to the lighting device in the vehicle traveling direction. Are sequentially sent to the lighting fixtures in the traveling direction via the transmission signal line 20 (S3).

上記Ｓ３の処理後、及びＳ１でＮＯのときに、制御部１４は、伝送信号線２０を介して通信部１５が自器具１０ａより前の器具から検知情報を受信したかを調べ、該情報を検知したとき（Ｓ４でＹＥＳ）、自器具１０ａを明状態にして、この明状態の保持時間を設定し（Ｓ５）、残りの点灯する台数を示すカウンタ台数Ｎ（初期値はｎ）を１つだけ少なくしてＮ＝Ｎ−１とし、カウンタ台数Ｎが０であるかを調べ、０でないときは（Ｓ６でＮＯ）、カウンタ台数Ｎを車体検知情報と共に伝送信号線２０からの信号線検知情報として、進行方向の次の器具に送出する（Ｓ７）。また、Ｓ７の処理後、及びＳ６でＹＥＳのときに、自器具１０ａの設定された保持時間が０となったかを調べ、０になったとき（Ｓ８でＹＥＳ）、自器具１０ａの照明灯１２を暗状態に設定し（Ｓ９）、Ｓ１に戻り、以降は、同じステップを繰り返す。また、Ｓ４でＮＯのときは、Ｓ９に移行する。また、Ｓ８でＮＯのときは、Ｓ１に戻る。これにより、例えば、ｎ＝２とした場合は、制御部１４は、自器具１０ａの車体検知センサ１１で車体を検出すると、自器具１０ａの照明灯１２を点灯して、次の進行方向の連続する２つの照明器具１０ｂと照明器具１０ｃを同時に明状態にする。この明状態にする台数のｎ＝２は、道路の各条件、道路幅、道路制限速度、照明器具間隔の距離等を考慮して、ユーザが予め決定することができる。また、自器具１０ａでＮ＝０になり、保持時間が０になると自器具１０ａは暗状態となり、車が通過した照明器具は順次暗状態となるよう制御される。ここで、暗状態とは、車体走行用の点灯の設定出力より低い電圧で点灯して照度を低減すること又は消灯することを言う。   After the process of S3 and when S1 is NO, the control unit 14 checks whether the communication unit 15 has received detection information from the device before the own device 10a via the transmission signal line 20, and obtains the information. When detected (YES in S4), the own instrument 10a is set to the bright state, the holding time of this bright state is set (S5), and the counter number N (the initial value is n) indicating the number of remaining lights is set to one. N = N−1 and check whether the number of counters N is 0. If not (NO in S6), the number of counters N is signal line detection information from the transmission signal line 20 together with the vehicle body detection information. Is sent to the next device in the traveling direction (S7). Further, after the processing of S7 and when YES in S6, it is checked whether or not the set holding time of the own device 10a has become 0, and when it has become 0 (YES in S8), the illumination lamp 12 of the own device 10a. Is set to the dark state (S9), the process returns to S1, and thereafter the same steps are repeated. If NO in S4, the process proceeds to S9. If NO in S8, the process returns to S1. Thereby, for example, when n = 2, when the vehicle body is detected by the vehicle body detection sensor 11 of the own device 10a, the control unit 14 turns on the illumination lamp 12 of the own device 10a and continues in the next traveling direction. The two lighting fixtures 10b and 10c to be turned on simultaneously are in a bright state. The number n = 2 of the number of bright states can be determined in advance by the user in consideration of road conditions, road width, road speed limit, distance between lighting fixtures, and the like. Further, when N = 0 in the own device 10a and the holding time becomes 0, the own device 10a is in a dark state, and the lighting devices through which the vehicle has passed are sequentially controlled to be in a dark state. Here, the dark state means lighting at a voltage lower than the setting output for lighting for driving the vehicle to reduce illuminance or turning off.

このように、上記実施形態によれば、車の進行方向の明状態に制御する照明器具１０の台数ｎを、運転者が進行道路の視認性を確保できる必要最小限の台数に設定しておけば、無駄な点灯を省き、省電力化を図ることができる。また、個々の照明器具１０を順次点灯できるので、滑らかな照明が得られて、進行先の道路を見易くなる。また、照明器具１０は車体検知センサ１１を有しているので、車体検知センサ用の設置工事は不要となり、工事費を安くできる。   As described above, according to the embodiment, the number n of the lighting fixtures 10 to be controlled in the bright state in the traveling direction of the vehicle can be set to the minimum number necessary for the driver to ensure the visibility of the traveling road. Thus, unnecessary lighting can be omitted and power saving can be achieved. Moreover, since each lighting fixture 10 can be lighted sequentially, smooth illumination is obtained and it becomes easy to see the road ahead. Moreover, since the lighting fixture 10 has the vehicle body detection sensor 11, the installation work for a vehicle body detection sensor becomes unnecessary, and can reduce construction cost.

また、本システム１は、車の進行方向のｎ台の照明器具１０を予め明状態に点灯する際、自器具１０ａが車体を検知したときに、同時にｎ台を同じタイミングで制御してももよいし、また、あるタイミングだけ点灯する時間を遅らせて制御してもよい。   Further, the present system 1 may control the n lighting fixtures 10 in the traveling direction of the vehicle in advance in a bright state, and simultaneously control the n lighting fixtures 10a at the same timing when the own fixture 10a detects the vehicle body. Alternatively, the lighting time may be delayed for a certain timing.

次に、本発明の第２の実施形態に係る照明制御システムについて、図４乃至図６を参照して説明する。本システム１は、隣接する車体検知センサ１１により検出された車体の検知タイミングの時間差と予め定められた照明器具間距離とにより車速を求め、この車速に応じて車の進行方向の照明器具１０を予め明状態に移行させるするタイミングを変えるものである。ここで、隣接する車体検知センサ１１は、互いに隣り合わせの照明器具にあってもよいし、ｎ台の照明器具１０間に離れていてもよい。   Next, an illumination control system according to a second embodiment of the present invention will be described with reference to FIGS. The system 1 obtains the vehicle speed from the time difference between the detection timings of the vehicle bodies detected by the adjacent vehicle body detection sensors 11 and a predetermined distance between the luminaires, and determines the luminaire 10 in the traveling direction of the vehicle according to the vehicle speed. The timing for shifting to the bright state in advance is changed. Here, the adjacent vehicle body detection sensors 11 may be in lighting fixtures adjacent to each other, or may be separated between n lighting fixtures 10.

照明器具１０は、上記検知時間差を求めるため、車体の検知時間差測定用のタイマ１６をさらに備える。制御部１４は、自器具１０ａよりｎ台手前の照明器具１０ｎの車体検知情報が、伝送信号線２０を介して通信部１５に伝送されると、初期時刻０としてタイマ１６による計測をスタートする。そして、自器具１０ａの車体検知センサ１１が車体を検知した時刻にタイマ１６の計測をストップする。このタイマ１６のスタート、ストップの時間差は、車体の検知タイミングの時間差となる。この時間差は、車が通過してきたｎ台間の全所要時間Ｔａとなる。ここで、隣接する照明器具間を等距離とし、その距離をＲとする。但し、初期状態では、車体の検知タイミングの時間差の計測は、例えば、トンネルのなどにおいては、トンネル入口の最初の照明器具を検知後、次の照明器具を検知した状態からスタートするものとする。このとき、車体の検知タイミングの時間差は、隣接する車体検知センサ１１により得られる。   The luminaire 10 further includes a timer 16 for measuring the detection time difference of the vehicle body in order to obtain the detection time difference. When the vehicle body detection information of the lighting apparatus 10n n units before the own apparatus 10a is transmitted to the communication unit 15 via the transmission signal line 20, the control unit 14 starts measurement by the timer 16 at the initial time 0. And the measurement of the timer 16 is stopped at the time when the vehicle body detection sensor 11 of the own instrument 10a detects the vehicle body. The time difference between the start and stop of the timer 16 is the time difference of the vehicle body detection timing. This time difference is the total required time Ta between the n cars through which the vehicle has passed. Here, it is assumed that the adjacent lighting fixtures are equidistant, and the distance is R. However, in the initial state, the measurement of the time difference in the detection timing of the vehicle body starts from a state in which, for example, in the tunnel, the first lighting fixture at the entrance of the tunnel is detected and then the next lighting fixture is detected. At this time, the time difference in the detection timing of the vehicle body is obtained by the adjacent vehicle body detection sensor 11.

制御部１４は、上記全所要時間Ｔａとｎにより、隣接器具間を通過する車の平均の所要時間Ｔｓを、Ｔａ／ｎとして、車速ＶをＲ／Ｔｓとして計算し、この所要時間Ｔｓを車体検知情報に付加し、信号線検知情報として、伝送信号線２０を介して次の照明器具に伝送する。   Based on the total required times Ta and n, the control unit 14 calculates the average required time Ts of a vehicle passing between adjacent appliances as Ta / n and the vehicle speed V as R / Ts. It adds to detection information and transmits to the next lighting fixture via the transmission signal line 20 as signal line detection information.

各照明器具の制御部１４は、信号線検知情報を受信したとき、自器具が明状態でない場合は、明状態に移行するが、この場合の移行条件として、移行するタイミングを、信号線検知情報を得てから、Ｔｓ／α（秒）後とする。このαは、現場の状況（照明器具間隔、道幅等の道路条件など）を考慮して設定される定数である。このαを用いて、制御部１４は、進行方向の照明器具の明状態への移行を、運転者の進行道路の視認性を損なうことのないよう、車速Ｖに応じて車体検知情報の検知時刻よりＴｓ／αだけタイムシフトさせるよう時間制御する。   When the control unit 14 of each lighting fixture receives the signal line detection information, the lighting device shifts to the bright state if the own fixture is not in the bright state. After Ts / α (seconds). This α is a constant set in consideration of the situation at the site (road conditions such as lighting fixture interval and road width). Using this α, the control unit 14 detects the detection time of the vehicle body detection information in accordance with the vehicle speed V so as not to impair the visibility of the traveling road of the driver when shifting the lighting device in the traveling direction to the bright state. Further, time control is performed so as to shift the time by Ts / α.

次に、本システム１の動作手順について、図６のフローチャートを参照して説明する。本システム１の動作手順は、前記実施形態と略同じであるので、異なる点について説明する。制御部１４は、Ｓ２の処理後、自器具１０ａのｎ台前の器具１０ｎからの伝送信号線２０により伝送されてきた車体検知情報を検知してタイマ１６をスタートさせる。続いて、自器具１０ａの車体検知センサ１１で車体を検知すると、タイマ１６をストップし、タイマ１６のスタート・ストップの時間差により全所要時間Ｔａを計測し、隣接器具間の所要時間Ｔｓ＝Ｔａ／ｎと距離Ｒより、車速Ｖ（＝Ｒ／Ｔｓ）を算出する（Ｓ１０）。但し、Ｔｓのデフォルトは０とする。続いて、車体を検知した自器具１０ａが制御する車の進行方向の他の器具台数ｎと、台数ｎの点灯された残りの台数を示すカウンタ台数Ｎ（初期値ｎ）、車体検知情報、所要時間Ｔｓの各情報を信号線検知情報として伝送信号線２０を介して次の進行方向の器具に伝送する（Ｓ１１）。但し、初期状態では、ｎ＝１とし、最初に検知された照明器具と次に検知された照明器具の検知情報から所要時間Ｔｓ及び車速Ｖを求めて、その後にｎを設定して各器具を制御するものとする。また、信号線検知情報とは、伝送信号線２０を介して送られるｎの値、カウンタ台数Ｎ、車体を検知した情報（検知有）、所要時間Ｔｓ等を言う。   Next, the operation procedure of the system 1 will be described with reference to the flowchart of FIG. Since the operation procedure of the system 1 is substantially the same as that of the above embodiment, only different points will be described. After the process of S2, the control unit 14 detects the vehicle body detection information transmitted from the transmission signal line 20 from the n tools 10n before the own device 10a, and starts the timer 16. Subsequently, when the vehicle body is detected by the vehicle body detection sensor 11 of the own device 10a, the timer 16 is stopped, the total required time Ta is measured by the time difference between the start and stop of the timer 16, and the required time between adjacent devices Ts = Ta / The vehicle speed V (= R / Ts) is calculated from n and the distance R (S10). However, Ts defaults to 0. Subsequently, the number n of other devices in the vehicle traveling direction controlled by the own device 10a that has detected the vehicle body, the counter number N (initial value n) indicating the remaining number of the number n, vehicle body detection information, required Each information of time Ts is transmitted as signal line detection information to the instrument in the next traveling direction via the transmission signal line 20 (S11). However, in the initial state, n = 1 is set, the required time Ts and the vehicle speed V are obtained from the detection information of the first detected lighting fixture and the next detected lighting fixture, and then n is set to set each fixture. Shall be controlled. The signal line detection information refers to the value of n sent through the transmission signal line 20, the number N of counters, information on detection of the vehicle body (with detection), required time Ts, and the like.

また、ｎ台前の器具からの信号線検知情報を受信したときは（Ｓ４でＹＥＳ）、自照明器具が点灯中かを調べ、明状態でないとき（Ｓ１２でＮＯ）、信号線検知情報のＴｓと、予め設定されたα（定数）を基に、Ｔｓ／αを求め、Ｔｓ／α秒後に自器具を明状態に移行する（Ｓ１３）。このＴｓ／αにより移行タイミングを、通常の車速（例えば、現場の道路の平均的車速など）において、一定の時間遅らせて制御することができ、また、移行タイミングを車速により変えることができる。そして、自器具１０ａを明状態に移行させると共に、カウンタ台数Ｎを１だけ差し引き、Ｎ＝Ｎ−１≠０のときは（Ｓ６でＮＯ）、次の器具に信号線検知情報を送出し（Ｓ１４）、Ｓ８に移行する。また、Ｓ１２でＹＥＳのときは、Ｓ６に移行し、Ｓ６でＹＥＳ（Ｎ＝０）のときは、信号線検知情報を受信したタイミングで、タイマ１６のカウンタをスタートさせ（Ｓ１５）、Ｓ８に移行する。Ｓ８に移行後は、自器具１０ａの設定された保持時間が０となったかを調べ、０になったとき（Ｓ８でＹＥＳ）、Ｓ９に移り、自照明器具を暗状態に設定し（Ｓ９）、Ｓ１に戻る。また、Ｓ８でＮＯのときは、Ｓ１に戻る。これにより、信号線検知情報を受信したｎ台の器具が、順次、Ｔｓ／α（秒）だけ遅れて点灯されるので、電力消費を低減することができる。また、信号線検知情報を受信したとき、現場の環境（照明器具間隔、トンネルの長さ等）に合わせて、αを最適に設定することにより、運転者の視認性を損なうことなく、省電力化することができる。   Further, when signal line detection information from n devices in front is received (YES in S4), it is checked whether or not the self-illuminating device is lit, and when it is not in a bright state (NO in S12), Ts of the signal line detection information Based on α (constant) set in advance, Ts / α is obtained, and after Ts / α seconds, the device shifts to the bright state (S13). With this Ts / α, the transition timing can be controlled with a certain time delay at a normal vehicle speed (for example, the average vehicle speed on the road in the field), and the transition timing can be changed according to the vehicle speed. Then, the own device 10a is shifted to the bright state, and the counter number N is decremented by 1. When N = N−1 ≠ 0 (NO in S6), signal line detection information is sent to the next device (S14). ), The process proceeds to S8. If YES in S12, the process proceeds to S6. If YES in S6 (N = 0), the counter of the timer 16 is started at the timing when the signal line detection information is received (S15), and the process proceeds to S8. To do. After shifting to S8, it is checked whether or not the set holding time of the own fixture 10a has become 0. When it has become 0 (YES in S8), the procedure moves to S9 and the own lighting fixture is set to a dark state (S9). Return to S1. If NO in S8, the process returns to S1. As a result, the n devices that have received the signal line detection information are sequentially turned on with a delay of Ts / α (seconds), so that power consumption can be reduced. In addition, when signal line detection information is received, it is possible to save power without sacrificing driver visibility by optimally setting α according to the on-site environment (lighting fixture spacing, tunnel length, etc.). Can be

図７（ａ）、（ｂ）、（ｃ）は、ｎ＝２（台）、α＝２として、２台前の照明器具からの信号線検知情報を基に、車速Ｖに応じて照明制御する場合の明状態移行状況を示す。先ず、図７（ａ）に示すように、制御部１４は、初期状態において、照明器具１０ａが１台前の最初の照明器具の車体検知センサからの車体検知情報を受信した時と、自器具１０ａの車体検知センサ１１により車体を検知した時とのタイマ１６による時間差（Ｔｓ）と、距離Ｒより車速Ｖを求め、ｎ＝２に設定する。そして、制御部１４は、自器具１０ａを明状態にすると共に、照明器具１０ｂに信号線検知情報（ｎ、Ｎ＝２、検知有、Ｔｓ）を送る。照明器具１０ｂの制御部は、この信号線検知情報を受けると、照明器具１０ｂをＴｓ／２だけ遅らせて点灯すると共に、Ｎ＝１として、信号線検知情報を照明器具１０ｃに送る。照明器具１０ｃの制御部は、この信号線検知情報（ｎ、Ｎ＝１、検知有、Ｔｓ）を受けると、照明器具１０ｃをＴｓ／２だけ遅らせて点灯する。これにより、照明器具１０ｂ、照明器具１０ｃは、信号線検知情報を受信後、共に、Ｔｓ／２だけ遅れて点灯される。このとき、Ｎ＝０となるので、照明器具１０ｃのタイマ１６がスタートする。   7 (a), 7 (b), and 7 (c), assuming that n = 2 (units) and α = 2, lighting control is performed according to the vehicle speed V based on signal line detection information from the previous lighting fixture The state of bright state transition is shown. First, as shown to Fig.7 (a), when the control part 14 received the vehicle body detection information from the vehicle body detection sensor of the 1st previous lighting fixture in the initial state, the lighting fixture 10a, and an own fixture The vehicle speed V is obtained from the time difference (Ts) by the timer 16 from the time when the vehicle body is detected by the vehicle body detection sensor 10a and the distance R, and n = 2 is set. And the control part 14 sends signal line detection information (n, N = 2, with detection, Ts) to the lighting fixture 10b while making the own fixture 10a into a bright state. Upon receiving this signal line detection information, the control unit of the lighting fixture 10b turns on the lighting fixture 10b with a delay of Ts / 2 and sends the signal line detection information to the lighting fixture 10c with N = 1. Upon receiving this signal line detection information (n, N = 1, with detection, Ts), the control unit of the lighting fixture 10c turns on the lighting fixture 10c with a delay of Ts / 2. Thereby, the lighting fixture 10b and the lighting fixture 10c are both turned on with a delay of Ts / 2 after receiving the signal line detection information. At this time, since N = 0, the timer 16 of the lighting fixture 10c starts.

次に、図７（ｂ）に示すように、器具１０ｂの車体検知センサ１１が車を検知すると、器具１０ｂの制御部は、既に点灯中の器具１０ｂの保持時間を再設定し、それより２台前の器具から受信した信号線検知情報よりＴｓ／２（α＝２）を求め、カウンタ台数Ｎを１づつ削減した信号線検知情報を、次の器具１０ｃ、器具１０ｄに順次送る。ここで、器具１０ｃは、既に器具１０ａにおける車の検知によって点灯されているので、器具１０ｄのみＴｓ／２だけ遅れて点灯される。次に、同様にして、図７（ｃ）に示すように、器具１０ｃの車体検知センサ１１が車を検知すると、器具１０ｅのみＴｓ／２だけ遅れて点灯される。   Next, as shown in FIG. 7 (b), when the vehicle body detection sensor 11 of the appliance 10b detects the vehicle, the control unit of the appliance 10b resets the holding time of the appliance 10b that is already lit, and 2 Ts / 2 (α = 2) is obtained from the signal line detection information received from the front instrument, and the signal line detection information obtained by reducing the number N of counters by one is sequentially sent to the next instrument 10c and instrument 10d. Here, since the instrument 10c has already been turned on by detection of a vehicle in the instrument 10a, only the instrument 10d is turned on with a delay of Ts / 2. Next, similarly, as shown in FIG. 7C, when the vehicle body detection sensor 11 of the appliance 10c detects a vehicle, only the appliance 10e is turned on with a delay of Ts / 2.

このように、本実施形態によれば、車の進行方向の照明器具を明状態に移行させるタイミングを固定的でなく、車速に応じて変えることとし、通常の車速において、移行するタイミングを、一定の時間遅らせて制御するものとしたとき、車速が通常より遅いときは、さらに移行タイミングを遅らせて省電力化でき、車速が通常よりも速いときは、移行タイミングを遅らせないものとして運転者の進行道路の視認性を良くしつつ、省電力化することができる。これにより、視認性とのバランスをとりつつ、省電力化することができる。   As described above, according to the present embodiment, the timing for shifting the lighting device in the traveling direction of the vehicle to the bright state is not fixed, but is changed according to the vehicle speed, and the timing for shifting at a normal vehicle speed is constant. When the vehicle speed is slower than normal, the transition timing can be further delayed to save power, and when the vehicle speed is faster than normal, the driver's progress is assumed not to delay the transition timing. It is possible to save power while improving the visibility of the road. Thereby, it is possible to save power while balancing the visibility.

なお、通常の車速において移行タイミングを遅らせない場合は、通常の車速よりも遅いときに移行タイミングを遅らせるものとする。   When the transition timing is not delayed at the normal vehicle speed, the transition timing is delayed when it is slower than the normal vehicle speed.

次に、上記第２の実施形態の変形例について説明する。この変形例は、信号線検知情報を受信したとき、制御部１４で算出した車速Ｖにより、明状態に移行させる車の進行方向の照明器具１０の台数ｎを変更できるようにしたものであり、その他の構成は前述と同じであり、図面及び重複説明は省略する。   Next, a modification of the second embodiment will be described. In this modified example, when the signal line detection information is received, the number n of the lighting fixtures 10 in the traveling direction of the vehicle to be shifted to the bright state can be changed by the vehicle speed V calculated by the control unit 14. Other configurations are the same as described above, and the drawings and redundant description are omitted.

この変形例によれば、車速Ｖにより点灯する照明器具１０の台数ｎを変更できるので、制御部１４は、車速が速い場合は、進行方向の点灯させる器具の台数ｎを増加するように制御することができる。これにより、運転者の視認性を高めつつ、省電力化を図ることができる。   According to this modification, the number n of lighting fixtures 10 that are turned on at the vehicle speed V can be changed. Therefore, when the vehicle speed is fast, the control unit 14 controls the number n of fixtures to be turned on in the traveling direction. be able to. Thereby, power saving can be achieved while improving the visibility of the driver.

なお、本発明は上記各種の実施形態の構成に限定されるものではなく、発明の趣旨を変更しない範囲で適宜に種々の変形が可能である。第２の実施形態では、自器具が車体を検知すると、この検知時刻より先の２台の照明器具を共に、Ｔｓ／αだけ遅らせて明状態に移行させたが、進行方向のｎ台の照明器具の内、先にある器具ほど、Ｔｓ／αをさらに遅らせて（例えば、αを小さくして）、明状態に移行させることにより、さらに省電力化することができる。また、各照明器具に距離間隔を算出できる位置情報を持たせ、この位置情報を信号線検知情報と共に伝送することにより、照明器具間の距離を容易に得ることができる。また、伝送信号路を伝送信号線として有線を用いたが、無線による伝送信号路を用いてもよい。   In addition, this invention is not limited to the structure of said various embodiment, A various deformation | transformation is possible suitably in the range which does not change the meaning of invention. In the second embodiment, when the own device detects the vehicle body, the two lighting devices ahead of this detection time are both delayed by Ts / α and shifted to the bright state. Among the appliances, the earlier the appliance, the further power saving can be achieved by further delaying Ts / α (for example, by reducing α) and shifting to a bright state. Moreover, the distance between lighting fixtures can be easily obtained by giving each lighting fixture the positional information which can calculate a distance space | interval, and transmitting this positional information with signal line detection information. Further, although a wired transmission line is used as the transmission signal line, a wireless transmission signal line may be used.

本発明の第１の実施形態に係る照明制御システムの構成図。The block diagram of the illumination control system which concerns on the 1st Embodiment of this invention. 上記照明制御システムの照明器具の構成図。The block diagram of the lighting fixture of the said illumination control system. 上記照明制御システムの動作手順を示すフローチャート。The flowchart which shows the operation | movement procedure of the said illumination control system. 本発明の第２の実施形態に係る照明制御システムの構成図。The block diagram of the illumination control system which concerns on the 2nd Embodiment of this invention. 上記照明制御システムの照明器具の構成図。The block diagram of the lighting fixture of the said illumination control system. 上記照明制御システムの動作手順を示すフローチャート。The flowchart which shows the operation | movement procedure of the said illumination control system. （ａ）は上記照明制御システムのα＝２における説明図、（ｂ）は（ａ）より進行方向へ１器具だけ車体が進んだときの説明図、（ｃ）は（ｂ）より進行方向へ１器具だけ車体が進んだときの説明図。(A) is explanatory drawing in (alpha) = 2 of the said lighting control system, (b) is explanatory drawing when a vehicle body advances only 1 apparatus in the advancing direction from (a), (c) is advancing direction from (b). Explanatory drawing when the vehicle body has advanced by one appliance.

符号の説明Explanation of symbols

１ 照明制御システム
１０、１０ａ、１０ｂ、１０ｃ、１０ｄ、１０ｅ 照明器具
１１ 車体検知センサ
２０ 伝送信号線（伝送信号路） DESCRIPTION OF SYMBOLS 1 Lighting control system 10, 10a, 10b, 10c, 10d, 10e Lighting fixture 11 Car body detection sensor 20 Transmission signal line (transmission signal path)

Claims (2)

車体検知センサを有する複数の照明器具と、該車体検知センサで検知された車体検知情報を前記照明器具間に伝送する伝送信号路と、を備えた照明制御システムにおいて、
前記照明器具は、前記車体検知センサで検知された車体検知情報に基き前記伝送信号路を介して照明器具を制御する制御部を備え、
前記制御部は、前記車体検知センサが車体を検知したとき、自照明器具と車の進行方向にある他の１つ又は複数の照明器具を、明状態に制御することを特徴とする照明制御システム。 In a lighting control system comprising a plurality of lighting fixtures having a vehicle body detection sensor, and a transmission signal path for transmitting vehicle body detection information detected by the vehicle body detection sensor between the lighting fixtures,
The lighting fixture includes a control unit that controls the lighting fixture via the transmission signal path based on vehicle body detection information detected by the vehicle body detection sensor,
When the vehicle body detection sensor detects the vehicle body, the control unit controls the lighting device and one or more other lighting devices in the traveling direction of the vehicle to a bright state. . 前記制御部は、隣接する車体検知センサにより検出された車体の検知タイミングの時間差と予め定められた照明器具間距離とにより車速を求め、この車速に応じて車の進行方向の照明器具を明状態に移行させるタイミングを変えることを特徴とする請求項１に記載の照明制御システム。   The control unit obtains the vehicle speed based on a time difference between detection timings of the vehicle bodies detected by the adjacent vehicle body detection sensors and a predetermined distance between the lighting fixtures, and the lighting fixture in the vehicle traveling direction is in a bright state according to the vehicle speed. The lighting control system according to claim 1, wherein the timing of shifting to is changed.
JP2007221869A 2007-08-28 2007-08-28 Lighting control system Withdrawn JP2009054496A (en)

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