JP2009004244A - Lighting control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting control system capable of improving precision of human detection and, therefore, capable of improving precision of light control. <P>SOLUTION: The light control system includes: IC tag readers 5a, 5b, ... outputting ID detection signals when they read out identification data from IC tags 9a, 9b, ...; a central control device 2 outputting a control signal for lighting and controlling the lighting device by a condition set beforehand by the user identification data of the ID detection signals when the ID detection signals are received from the IC tag readers; and control terminals 4a, 4b, ... receiving the control signal and controlling optical output of the lighting device by the control signal 2. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an illumination control system that controls turning on / off and dimming of a lighting fixture.

  Conventionally, as an example of this type of lighting control device, there is one that detects the presence or absence of a human body and controls the lighting fixture on / off (lights on / off) by detecting infrared rays emitted from the human body by a pyroelectric infrared sensor. Are known.

  However, this pyroelectric infrared sensor detects the presence of the human body by detecting the amount of change in the infrared that occurs when the human body moves at a temperature difference from the surroundings. When it disappears, there is a problem that it is determined that there is no human body because the amount of change in infrared rays cannot be detected, and the lighting apparatus is turned off.

Therefore, when the pyroelectric infrared sensor detects a human body and does not detect the human body within a predetermined time, there is known an illumination control device that detects the human body by tilting the pyroelectric infrared sensor itself with a fine tilt mechanism. (For example, refer to Patent Document 1).
JP-A-8-273065

  However, since the latter conventional lighting control device is provided with a fine movement tilt mechanism, the lighting control device as a whole is increased in size and weight, and there is a mechanical drive unit. There is a new problem that the operation reliability is lowered.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide an illumination control system capable of improving human body detection accuracy and thereby improving dimming accuracy. It is in.

  An illumination control system according to claim 1 includes an IC tag reader that outputs an ID detection signal when user identification information is read from an IC tag; and when the ID detection signal is received from the IC tag reader, A central control device that outputs a control signal for turning on and controlling the lighting apparatus according to control conditions set in advance by the user identification information; and receiving the control signal, the light output of the lighting apparatus is controlled by the control signal. And a control terminal.

  A lighting control system according to claim 2 is a timer that is activated when an ID detection signal is received from an IC tag reader and counts a predetermined time that is set in advance; Control means for giving a control signal to the control terminal for lowering the light output of the luminaire when the light is not received.

  The illumination control system according to a third aspect is characterized in that the timer is configured such that the set time can be changed according to a preset schedule of a required period.

  The illumination control system according to claim 4 is characterized in that the control means is configured to be able to change the dimming degree for reducing the light output of the luminaire according to a preset schedule for a required period.

  The illumination control system according to claim 5 is characterized in that the IC tag reader and the control terminal are arranged for each of a plurality of lighting fixture groups.

  In the illumination control system according to claim 6, when the control device receives the ID detection signal from the IC tag reader, the control device determines whether or not the user indicated by the user identification information of the ID detection signal is a registered person. When the user is authenticated, when the person is authenticated, a control condition preset for the user of the ID detection signal is given to the control terminal, and the central control device is configured to control the lighting apparatus for each group. It is characterized by being.

  According to the lighting control system according to claim 1, by detecting the user identification information (ID) recorded on the IC tag from the IC tag carried or carried by an employee or the like by the IC tag reader, The presence or absence (presence or absence) of a person can be detected. For this reason, since the presence / absence (presence / absence) of a person can be detected without mechanically driving the IC tag reader, the mechanical driving unit can be omitted. For this reason, it is possible to reduce the size and weight of the entire lighting control device.

  Further, since the human detection accuracy can be improved, it is possible to improve the control accuracy for turning on / off or dimming the lighting fixture based on the human detection accuracy.

  Furthermore, the lighting fixtures are turned on and off based on the control conditions indicated in the individual user identification information recorded on the IC tag that is carried or carried by the employee or other person. It can control for every lighting fixture group based on control conditions common to light control and several user identification information.

  According to the illumination control system according to claim 2, when the ID is not detected again by the IC tag reader within the set time of the timer after reading the user identification information of the IC tag by the IC tag reader, Dimming control is performed to determine that the human body is absent and to turn off or dimm the luminaire. That is, when the human body is absent, the lighting apparatus is turned off or dimmed, so that power can be saved.

  According to the lighting control system of the third aspect, since the IC tag reader and the control terminal are provided for each of the plurality of lighting fixture groups, the plurality of lighting fixtures are turned on / off or dimmed for each of the groups. Can be controlled.

  According to the illumination control system of the fourth aspect, since the lighting device is turned on and off and dimming is controlled after the user is authenticated by the central control device, the lighting device is turned on and off and dimmed with a false ID. It is possible to prevent the above control.

  Embodiments according to the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 is a block diagram showing a configuration of a lighting control system according to an embodiment of the present invention with a part omitted, and FIGS. 2 and 3 are flowcharts of processing programs of a central control device of the lighting control system.

  As shown in FIG. 1, the lighting control system 1 sends a central control device 2 to a plurality of sets 4 a and 5 a, 4 b and 5 b,. For example, each of the monitoring terminals 6 disposed on a wall switch or the like is electrically connected. Furthermore, the setting device 7 can be electrically connected to the monitoring terminal 6.

  Each set of control terminals 4a, 4b,... And each set of IC tag readers 5a, 5b,... Are arranged for each of a plurality of sets of lighting fixture groups G1, G2,. Each of the lighting fixture groups G1, G2,... Is installed for each lighting area to be illuminated, such as a plurality of offices of the company, for example. For this reason, there are cases where the conditions for collecting external light, such as areas where there is little external light, are different. For this purpose, each lighting fixture group G1, G2,... Has one or more dimmable lighting fixtures 8, 8,..., Respectively. It includes LEDs (light emitting diodes), light bulbs and the like.

  Each of the IC tag readers 5a, 5b,... Is disposed, for example, on the ceiling of each illumination area and is driven by, for example, a commercial power supply (AC), and wirelessly communicates with the IC tags 9a, 9b,. ID reading means for intermittently reading required information such as IDs, which are user identification information recorded on the IC tags 9a, 9b,... Means is provided for outputting an ID detection signal when read.

  Each of the IC tags 9a, 9b,... Is configured, for example, as an employee ID card that is always carried or carried by an employee or the like, and an antenna, memory, and CPU (central processing) (not shown) are placed in a plastic card having a required shape. Device) and a button battery or the like for driving them is replaceably provided and is configured as an RF active type. In the memory of the IC tags 9a and 9b, an ID for authenticating each employee, position information such as office seats, a processing program for driving the CPU, and the like are recorded. From the IC tag readers 5a, 5b,. When a read request signal is received by an antenna, communication means for wirelessly transmitting recording information such as an ID to the IC tag readers 5a, 5b,.

  In addition, each IC tag reader 5a, 5b,... Includes means for transmitting recording information such as an ID read from each IC tag 9a, 9b,... To the central controller 2 through the signal transmission line 3 as an ID detection signal. is doing.

  The central controller 2 includes a display with a touch panel, an ID authentication unit, and a dimming data table in which a plurality of IDs and lighting control conditions such as lighting and dimming are associated in advance. The display with a touch panel displays a dimming data table set in the central controller 2, a list of IDs of all employees, etc., and appropriately inputs these setting information by touch operation of the touch panel or key input, or Can change.

  When the ID authentication means receives an ID detection signal, the ID authentication means compares this ID detection signal with the ID (number) of all employees recorded in advance, and detects this ID when it matches. This is a personal authentication means to authenticate that the employee is a normal employee who can use the system. As lighting control conditions, for each individual ID of each employee or for each ID common to a plurality of employees, each lighting fixture group G1, G2,. Is preset.

  When the central control device 2 receives the ID detection signal from each IC tag reader 5a, 5b,..., The central control device 2 reads the control condition for turning on / off and the dimming degree corresponding to the ID by referring to the dimming table, A means for transmitting the light as a dimming signal (control signal) via the transmission signal line 3 to the corresponding control terminals 4a, 4b,.

  When each control terminal 4a, 4b,... Receives the dimming signal from the central control device 2, the dimming signal is sent to the lighting fixture groups G1, G2,... Belonging to each control terminal 4a, 4b,. Are provided to the fixtures 8, 8..., And the lighting fixtures 8 are provided for each lighting fixture group G 1, G 2,.

  In addition, when a plurality of IDs are set to perform different controls on the same lighting fixture 8, the central control device 2 assigns a higher priority ID among the IDs detected by giving priority to the IDs. It can be adopted and controlled.

  The monitoring terminal 6 is disposed on a wall switch (not shown), and the setting device 7 includes input means such as a touch panel and a numeric keypad. The setting device 7 is connected to the monitoring terminal 6 through a cord, and the setting of addresses of the respective lighting fixtures 8 and their groups G1, G2,... And grouping of the lighting fixture groups G1, G2,. Alternatively, setting information for making these changes can be input. The setting information is transmitted to the central control device 2 via the transmission signal line 3, and setting information such as lighting control conditions set in the central control device 2 is newly set or changed. .

  2 and 3 show flowcharts of the processing program of the central control unit 2, respectively. In these drawings, the symbol S added with a number indicates each step of the flowchart, and the circle A indicates a connector.

  After starting this processing program, the central controller 2 first determines in step S1 whether or not an ID detection signal has been received from any one of the IC tag readers 5a, 5b,... When the signal is received, the process proceeds to the next S2.

  In S2, it is determined whether or not the ID of the received ID detection signal is normal data by the authentication means. If Yes, the process proceeds to the next S3. If No, the process returns to S1, and S1 and the subsequent steps are repeated.

  In S3, the dimming data table is referred to based on this normal ID, the dimming degree corresponding to this ID is extracted, and this is used as a dimming signal to control terminals 4a, 4b,. Is transmitted through the signal transmission line 3. Therefore, the specified control terminals 4a, 4b,... Give the received dimming signal to specific lighting fixture groups G1, G2,. Light control.

  After that, in S4, the exit detection timer is started. In the next S5, the ID detection signal is continuously received from the IC tag readers 5a, 5b,... Of the lighting fixture groups G1, G2,. When it is determined whether or not an ID detection signal is received (Yes), a person such as an employee who owns or carries the IC tag 9a, 9b,. It is determined that the vehicle stays in the lighting area without leaving the room, and the process proceeds to S6. On the other hand, when the answer is No in S5, it is determined that a person such as an employee who owns or carries the IC tag 9a, 9b,... Has left the lighting area where the dimming is lit, and proceeds to S7 shown in FIG. move on.

  In S6, driving of the exit detection timer is stopped and cleared again to the initial state, and then the process returns to S1 again, and S1 and subsequent steps are repeated again.

  For this reason, lighting control of each lighting fixture 8 of each lighting fixture group G1, G2,... Is controlled in each lighting area based on the lighting control condition of the ID detection signal.

  On the other hand, in S7, it is determined that a person such as a portable employee has left the lighting area where the dimming is turned on, and once the control terminal 4a, 4b, ..., the lighting fixture groups G1, G2, ... or the lighting fixtures 8, 8, ... are turned off.

  In the next S8, the driving of the exit detection timer is stopped and cleared to the initial state again. Thereafter, the process returns to S1 and the steps after S1 are repeated.

  Therefore, according to this lighting control system 1, the IDs recorded on the IC tags 9a, 9b,... From the IC tags 9a, 9b,. ,... Can detect the presence (presence or absence) of a person. In addition, since a person such as an employee can be detected without moving, the presence or absence (presence / absence) of the person can be detected without mechanically driving the IC tag readers 5a, 5b,. For this reason, since the mechanical drive unit can be omitted, the overall lighting control system can be reduced in size and weight.

  Further, since the human detection accuracy can be improved, the dimming accuracy for dimming the lighting fixtures 8, 8,... Can be improved accordingly.

  Further, the lighting fixtures 8, 8,... Are turned on and off or dimmed based on the control conditions indicated in the personal user identification information recorded on the IC tags 9a, 9b,. Since it controls, it can control to G1, G2, ... for every lighting fixture group based on the control conditions common to the individual specific light control and several user identification information.

  When the IC tag readers 5a, 5b,... Read the user identification information of the IC tags 9a, 9b,... And the ID cannot be detected again by the IC tag readers 5a, 5b,. The light extinction dimming means as the control means judges that the person such as the employee is absent and performs the extinction control to turn off the lighting fixtures 8, 8,. That is, when the person is absent, the lighting fixtures 8, 8,... Are turned off or dimmed to a predetermined value, so that power saving can be achieved.

  Further, since the IC tag readers 5a, 5b,... And the control terminals 4a, b,... Are arranged for each of the plurality of lighting fixture groups G1, G2,. It is possible to control turning on / off and dimming respectively.

  Since the central control device 2 authenticates the user such as an employee, the lighting fixtures 8, 8,... Are controlled to be turned on and off, so that the lighting fixtures 8, 8,. It is possible to prevent the dimming from being controlled.

  In addition, this invention is not limited to the said embodiment, For example, the setting time and the light control level of the light extinction dimming means of the central control apparatus 2 are set to the working hours of the day, the day of the week, or the year. It may be configured such that it can be changed according to a schedule of a required period set in advance according to the month or season.

  FIG. 4 shows an example of a time schedule table in which the set time of the timer by the light extinction dimming means is appropriately changed according to a plurality of time zones in a day.

  This schedule table shows, for example, a time zone in which there is a low possibility that there are employees such as midnight and lunch breaks, and a time zone in which an action other than work is performed (for example, 0:00 to 9:00 or 12:00 to 13:00). ), The set time of the timer is set to be shorter than a time zone (for example, 9:00 to 12:00 or 13: 0 to 17:00) where there is a high possibility of performing business.

  For this reason, since the lighting fixtures 8, 8,... Can be turned off or dimmed early at night or during lunch breaks, power can be saved accordingly.

  FIG. 5 shows an example of a schedule table showing the correspondence between a plurality of time zones of the day and the dimming patterns 1, 2,..., And FIG. It is an example of the schedule table | surface which shows each correspondence of each.

  In the schedule table of FIG. 5, a dimming level of 0% means that the light is turned off after the timer set time has elapsed, and 10% is not turned off at all and continues to be turned on with a light flux of 10% of full lighting. It shows that.

  The schedule tables shown in FIGS. 4 to 6 are recorded in advance in the memory of the central control apparatus 2, and the set time of the timer and the dimming pattern are executed according to these schedule tables. Further, these schedule tables can be changed as appropriate by touch operation or key input of the above-mentioned display with a touch panel.

  Therefore, according to these schedule tables, the dimming pattern can be changed as appropriate according to the time zone of the day, weekdays of the week, holidays, and the like. For this reason, since the lighting fixture 8 can be lit at the necessary brightness for the required time and the useless lighting time and brightness can be suppressed, further power saving can be achieved.

The block diagram which abbreviate | omits and shows the whole structure of the illumination control system which concerns on one Embodiment of this invention. The flowchart of a part of processing program of the central control apparatus shown in FIG. The flowchart of the remaining part of the processing program of the central controller shown in FIG. FIG. 2 is a schedule table showing timer setting times in a plurality of time zones in a day recorded in advance in the central control device shown in FIG. 1. FIG. The schedule table | surface which each shows the kind of dimming pattern in the several time zone of the day recorded beforehand by the central control apparatus shown in FIG. The schedule table which shows the kind of dimming pattern in each day of the week recorded beforehand by the central control apparatus shown in FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Lighting control system, 2 ... Central control unit, 4a, 4b ... Control terminal, 5a, 5b ... IC tag reader, 6 ... Monitoring terminal, 7 ... Setting device, 8 ... Lighting fixture, 9a, 9b ... IC tag, G1, G2: Lighting equipment group.

Claims (6)

An IC tag reader that outputs an ID detection signal when the user identification information is read from the IC tag;
A central control device that outputs a control signal for turning on and controlling the luminaire according to control conditions set in advance by the user identification information of the ID detection signal when receiving the ID detection signal from the IC tag reader; ;
A control terminal that receives the control signal and controls the light output of the luminaire by the control signal;
A lighting control system comprising: A timer that is activated when an ID detection signal is received from the IC tag reader and measures a predetermined time set in advance;
Control means for giving a control signal to the control terminal for lowering the light output of the luminaire when the ID detection signal is not received again within a set time after the start of the timer;
The lighting control system according to claim 1, further comprising: 3. The lighting control system according to claim 2, wherein the timer is configured such that the set time can be changed in accordance with a preset schedule for a required period. 4. The lighting control system according to claim 2, wherein the control means is configured to be able to change the dimming degree for reducing the light output of the lighting fixture in accordance with a preset schedule for a required period. The illumination control system according to any one of claims 1 to 4, wherein the IC tag reader and the control terminal are arranged for each of a plurality of illumination fixture groups. When the control device receives the ID detection signal from the IC tag reader, it authenticates whether or not the user indicated by the user identification information of the ID detection signal is a registered person, and when the user is authenticated 6. The central control device according to claim 5, wherein a control condition preset for a user of the ID detection signal is given to the control terminal, and the lighting apparatus is controlled for each group. Lighting control system.

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