JP2009087834A - Illuminance control system and its program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an illuminance control system to be easily installed for controlling illuminance depending on the status of persons in a room. <P>SOLUTION: When intermittently receiving a signal from a portable radio 2, illuminations 1a, 1b each checks RSSI to control illuminance depending on the RSSI. Thus, when the illumination 1a exists near a person who carries the portable radio 2, the RSSI of the illumination 1a receiving the signal from the portable radio 2 is high and the RSSI of the illumination 1b installed distant therefrom is low. So, the illuminance of the illumination 1a is set to be high, and the illuminance of the illumination 1b is set to be low. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an illuminance control system for controlling the illuminance of each illumination in an indoor illumination, and a program thereof.

  In a room with multiple lamps per room, the use of lighting at a necessary part with the required brightness leads to power saving compared to a room with one lamp per room. In addition, if you shine bright light before you sleep, you may feel sleepy or sleep less. The illuminance is not uniform and needs to be controlled according to time and circumstances.

  The illuminance control of multiple lights is performed by setting the illuminance of each illumination with the illuminance control device and changing the illuminance of each illumination at once by pressing the setting button etc. of the illuminance control device when necessary. ing.

  In addition, the illuminance sensor etc. measures the illuminance on the spot to control the illuminance of each illumination, and the human sensor constructed by the infrared sensor etc. allows the illumination to enter and exit from the room and approach or leave. On / off and illumination control are also performed (see, for example, Patent Document 1).

In addition, a specific sensor is controlled by detecting only the presence of a person in a certain range of a room by means of a human sensor or a partition (see, for example, Patent Document 2).
Japanese Patent Laid-Open No. 11-233268 Japanese Patent Laid-Open No. 11-40378

  However, in the system configuration as described above, the human sensor is an ON / OFF control of whether or not the response sensitivity varies depending on the temperature, so in order to control the illuminance of a plurality of illuminations, partition Consideration of the installation position and direction of sensors and complicated control algorithms are required.

  In addition, since human sensors are based on detection of temperature changes due to infrared rays and detection of moving objects, most of them also respond to pets such as dogs and cats kept indoors, which may cause unnecessary lighting control. There is.

  The present invention solves the above-described conventional problems, and an object thereof is to provide an illuminance control system that can be easily installed and can perform illuminance control according to the state of a person in a room.

  In order to solve the above-described problems, an illuminance control system according to the present invention includes a portable wireless device that transmits a wireless signal, and a plurality of lights that control the illuminance according to the received signal strength when receiving the wireless signal from the portable wireless device. It consists of. As a result, the illuminance can be increased when the received signal strength of the radio signal from the portable wireless device held by a person is high, and the illuminance can be controlled low when the received signal intensity is weak.

In the illuminance control system of the present invention, since the illuminance can be controlled according to the received signal intensity of the radio signal from the portable wireless device, the illuminance of only the illumination near the person with the portable wireless device is increased. By doing so, it is possible to avoid wasting power in all the lighting.

  An illuminance control system according to a first aspect of the invention comprises a portable wireless device that transmits a wireless signal and a plurality of lights that control the illuminance according to the received signal intensity when receiving the wireless signal from the portable wireless device. is there.

  Thus, by increasing the illuminance of only the illumination in the vicinity of the person who has the portable wireless device, it is possible to prevent wasteful power consumption in all the illumination.

  In the illuminance control system of the second invention, at least one of the illuminations of the first invention transmits a radio signal at a predetermined timing, and the portable radio receives a response signal when receiving the radio signal from the illumination Is returned.

  As a result, the portable wireless device is always in a receiving state and does not transmit a wireless signal in an outdoor area where there is no illumination. Therefore, it is possible to transmit radio waves to other wireless systems without consuming unnecessary power. There will be no interference.

  In the illuminance control system of the third invention, when the illumination of the second invention receives a radio signal from another illumination, the illuminance control system controls the illuminance according to the received signal intensity.

  Thereby, since illumination intensity can be adjusted in relation to the distance of other illumination, it can be used for fine control of illumination intensity of each illumination.

  In the illumination control system according to a fourth aspect, the illumination according to the first or second aspect transmits a signal including the received signal strength of the signal received from the portable wireless device, and receives the signal including the received signal strength. And an illuminance control device that transmits an illuminance setting value corresponding to the received signal intensity to the illumination.

  Thus, by collecting the received signal intensity received by each illumination in the illuminance control device, the conversion process of the received signal intensity and illuminance may be performed only by the illuminance control device. This circuit is no longer necessary.

  In addition to the configuration of the fourth invention, the illuminance control system of the fifth invention has an illuminance detector that wirelessly transmits ambient brightness by an illuminance sensor, and the illuminance control device includes: Data is received wirelessly and used as a multiplier of the illuminance setting value.

  Thereby, since the illuminance of each illumination can be determined based on the brightness of the room by the illuminance signal received from the illuminance detector, the illuminance control can be performed more efficiently.

  In the illuminance control system of the sixth aspect of the invention, the illuminance control device of the first aspect of the invention transmits a radio signal at a predetermined timing, and when the portable radio receives a radio signal from the illuminance control device, a response signal And the illumination receives a response signal from the portable wireless device and controls the illuminance according to the received signal strength.

  This eliminates the need for a function of timing the timing for transmitting the search signal in the illumination, thereby simplifying the illumination device configuration.

A seventh invention is a program for executing at least a part of the control in the illuminance control system of the first to sixth inventions by illumination, a portable wireless device, or an illuminance control device, thereby downloading on a recording medium or a communication line Because it is possible to change or add programs during operation, it is possible to cope with new specification changes.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a configuration diagram of an illuminance control system according to the first embodiment of the present invention. The lighting 1a and the lighting 1b have a built-in wireless communication device (not shown), and are installed in the same room, respectively, and perform illuminance control according to the position in the room of the resident with the portable wireless device 2.

  The form of the portable wireless device 2 is built in a mobile phone, a business card type card, a key holder, a writing instrument, a pendant, a wristwatch or the like and is always carried. As the wireless means, it is only necessary to be able to communicate in one room, and therefore a method capable of performing communication over several tens of meters such as a wireless LAN and a specific low power wireless may be used.

  Next, an illuminance control procedure using wireless communication between each illumination 1 and the portable wireless device 2 will be described with reference to FIG.

  The portable wireless device 2 sends out a beacon signal 11 every 10 seconds. The content of the signal includes an ID for identifying the portable wireless device 2.

  Illumination 1a receives intermittently and confirms RSSI (Received Signal Strength Indicator, which is generally used to indicate received signal strength as received signal strength) when receiving a signal from portable radio 2 And illuminance is controlled according to RSSI. Similarly, when the illumination 1b receives intermittently and receives a signal from the portable wireless device 2, the illumination 1b confirms the RSSI and controls the illuminance according to the RSSI.

  The RSSI generates and outputs a value substantially proportional to the logarithmic value (dB micro V) of the input voltage received by the wireless reception circuit (not shown) of the illumination 1. The numerical value range is, for example, -20 to +60, and the larger the numerical value, the higher the input voltage indicates that the signal can be received stably. The illuminance is determined from the RSSI value. If the RSSI is considered to be half proportional to the square of the distance to the communication partner, it is determined that the RSSI is high and the illuminance is set high. The relationship between RSSI and the illuminance setting value may be determined on a one-to-one basis, and if the user can change the setting, the illuminance is adjusted according to the brightness of the room itself (light from the window, etc.). You can also

  For example, as shown in FIG. 1, when the illumination 1a is in the vicinity of a person with the portable radio 2, the RSSI of the signal from the portable radio 2 in the illumination 1a is high, and the illumination 1b installed remotely. Therefore, the illuminance of the illumination 1a is set high and the illuminance of the illumination 1b is set low.

  The timing of the reception operation of the illumination 1 may be continuous reception, but since reception power is always used, the beacon signal 11 from the portable wireless device 1 is longer than the interval of intermittent reception as an intermittent reception operation. The lighting 1 may be provided with an accurate timing function that can be received by transmission or can start reception at the same time as the transmission interval of the beacon signal 11 from the portable wireless device 1.

  As a result, the lighting can be installed without wiring with other devices, it is bright in the vicinity of people with portable radios, it is relatively dark in places where there are no people, and unnecessary parts are not illuminated brightly Even if the person carrying the portable wireless device 2 moves in the room, the control is always repeated.

  In the present embodiment, the beacon signal 11 is periodically transmitted from the portable wireless device 2, but periodically (for example, at intervals of 10 seconds) from the illumination 1 as in the signal flow shown in FIG. 3. If the received portable wireless device 2 transmits the search signal 12 and the response signal 13 is transmitted, each illumination 1 receives the response signal 13 and confirms the RSSI, thereby performing the same illuminance control. be able to. As described above, if the search signal 12 is transmitted from the illumination 1, the portable wireless device 2 only needs to be in a receiving state at all times, and is not necessary because the wireless signal is not transmitted outside the area without the illumination 1. Without consuming a large amount of power, other radio systems are not disturbed by radio wave emission.

  In the above embodiment, the transmission signal from the portable wireless device 2 includes its own ID. By using this in the lighting 1, the portable wireless device possessed by the elderly or the like who has low vision When identified as the ID of 2, the illuminance can be set to about 20% higher, or the portable wireless device 2 that does not control the illuminance can be selected.

  Moreover, in the said Example, although the transmission interval of the beacon signal 11 and the search signal 12 was 10 second, you may set an interval by the use etc. of a room, and if it is the search signal 12 transmitted from the illumination 1, If the change of the RSSI is monitored with the illumination 1 and the interval is changed according to the movement of the person, the radio wave is not transmitted more than necessary.

  Moreover, in the said Example, although the illumination 1 was demonstrated with 2 units | sets, the same illumination intensity control can be performed even if it is 3 or more units | sets. If the number of lights is large, the illuminance can be controlled more finely (for example, brightly illuminate only near the person), which is also effective for power saving.

  In the above embodiment, only one portable wireless device 2 has been described. However, when two or more people are in the room, each person may carry the portable wireless device 2. In this case, the timing of the wireless signal transmitted from the portable wireless device 2 is shifted by each portable wireless device 2 so that the illumination 1 receives the beacon signal 11 or the response signal 13 from each portable wireless device 2. be able to. The transmission timing from the portable wireless device 2 may be generated by generating the ID or random number of the portable wireless device 2 and changing the transmission waiting time by a timer. Thereby, the RSSI of the received signal from each portable wireless device 2 can be obtained, and if the illuminance is set according to the highest RSSI, the illuminance at a place where a person is present can be sufficiently maintained.

(Embodiment 2)
Hereinafter, a second embodiment of the present invention will be described with reference to the drawings.

  FIG. 4 is a configuration diagram of an illuminance control system according to the second embodiment of the present invention.

  The lighting 1a and the lighting 1b have a built-in wireless communication device (not shown), and are installed in the same room, respectively, and perform illuminance control according to the position in the room of the resident with the portable wireless device 2.

  The form of the portable wireless device 2 is built in a mobile phone, a business card type card, a key holder, a writing instrument, a pendant, a wristwatch or the like and is always carried.

  Next, an illuminance control procedure using wireless communication between each illumination 1 and the portable wireless device 2 will be described with reference to FIG.

  The search signal 12a is transmitted periodically (for example, at intervals of 10 seconds) from the illumination 1a, and the received portable wireless device 2 transmits a response signal 13a.

  The illumination 1a receives intermittently and, when receiving the response signal 13a from the portable wireless device 2, confirms the RSSI of the received signal.

  Similarly, the illumination 1b transmits a search signal 12b at intervals of 10 seconds, and the received portable wireless device 2 transmits a response signal 13b.

  When the illumination 1b receives intermittently and receives the response signal 13b from the portable wireless device 2, the illumination 1b confirms the RSSI of the received signal.

  Furthermore, when the illumination 1a receives the search signal 12b transmitted by the illumination 1b, the illumination 1a calculates the distance between the illumination 1a and the illumination 1b by checking the RSSI of the received signal. Similarly, when the illumination 1b receives the search signal 12a transmitted by the illumination 1a, the illumination 1b confirms the RSSI of the received signal. The illumination 1a and the illumination 1b adjust the illuminance control according to the RSSI of the received signal from the portable wireless device 2 by the RSSI of the received signal from the other illumination 1, respectively.

  That is, since each distance of the illumination 1 can be estimated by the RSSI of the reception signal from the other illumination 1, for example, when the RSSI of the reception signal from the illumination 1b is equal to or more than a predetermined value in the illumination 1a, the illumination 1 Since they are close to each other, it is possible to avoid being too bright by lowering the illuminance a little from the illuminance to be set by the RSSI of the received signal from the portable wireless device 2. This can be used for fine illumination control when the illumination 1 is a stand-type portable type.

(Embodiment 3)
Hereinafter, a third embodiment of the present invention will be described with reference to the drawings.

  FIG. 6 is a configuration diagram of an illuminance control system according to the third embodiment of the present invention.

  What is different from the previous embodiments in the system configuration is that an illuminance control device 3 for notifying the illumination 1 of the illuminance control value is provided.

  Next, the procedure of illuminance control using wireless communication between each illumination 1, the portable wireless device 2, and the illuminance control device 3 will be described with reference to FIG.

  First, the search signal 12 is transmitted periodically (for example, every 10 seconds) from the illumination 1a, and the received portable wireless device 2 transmits the response signal 13.

  The illumination 1a receives the response signal 13, confirms the RSSI, and transmits a received intensity signal 14a including RSSI that is the received electric field intensity of 1a to the illuminance control device 3.

  Similarly, the illumination 1b also receives the response signal 13, confirms the RSSI, and transmits a received intensity signal 14b including RSSI that is the received electric field intensity of 1b to the illuminance control device 3.

  In the illuminance control device 3, the illuminance to be controlled by the illumination 1a and the illumination 1b is determined from the received reception intensity signals 14 and 14b, and an illuminance control signal 15a including illuminance data controlled by the illumination 1a is determined for the illumination 1a. An illuminance control signal 15b including illuminance data controlled by the illumination 1b is transmitted to the illumination 1b.

  In each illumination 1, when the illuminance control signal 15 is received, the illuminance is set according to the illuminance data to be controlled.

  As described above, by collecting the RSSI received by each illumination 1 in the illuminance control device 3, the RSSI and illuminance conversion processing may be performed only by the illuminance control device 3. This circuit is no longer necessary.

  In the present embodiment, the illuminance control device 3 controls the illuminance only by the reception intensity of the signal from the portable wireless device 2 of each illumination 1, but as shown in FIG. 8, a phototransistor, a photodiode, or the like An illuminance detector 4 that includes an illuminance sensor that measures the illuminance in a room using a radio and that can be wirelessly transmitted is provided, and an illuminance signal 16 that includes the illuminance measured by the illuminance detector 4 is periodically (eg, every 30 minutes). If it transmits to a control apparatus, the illumination intensity control apparatus 3 received from RSSI corresponding to the distance with the portable radio | wireless machine 2 of each illumination 1 by the received intensity signal 14 received from each illumination 1, and the illumination intensity detector 4 Since the illuminance of each illumination 1 can be determined based on the brightness of the room based on the illuminance signal 16, more illuminance control can be performed. For example, if it is determined that the brightness of the room is sufficiently bright, control is performed such as multiplying the illuminance data for each illumination 1 by half and reducing it to half the illuminance.

  In addition, the illuminance control device 3 is provided with a timekeeping function for one day, and since the outside of the window should be bright during the daytime, the illuminance to be controlled is halved, and at midnight, the illuminance is controlled so as not to give a stimulus. In the morning, fine control can be performed according to the life of the person, such as increasing the illuminance by 1.5 times to wake up.

  In each of the above embodiments, the device that transmits the search signal 12 is the illumination 1. However, if the search signal 12 is transmitted from the illuminance control device 3 as shown in FIGS. In this case, the function of timing the transmission timing of the search signal 12 is not required, so that the device configuration of the illumination 1 can be simplified. Further, when it is desired to change the transmission interval of the search signal 12 in the illuminance control device 3, it can be easily performed by installing the illuminance control device 3 on a desk or wall that can be reached.

  Also, in each of the above embodiments, the antenna directivity of the wireless communication portion of each illumination is not shown, but if an antenna with as little directivity as possible is used, the received signal strength changes depending on the distance. It is possible to simply control the illuminance according to the distance, and conversely, if a directional antenna is used, the reception sensitivity can be increased with respect to a specific position and direction. Illuminance control for increasing the illuminance by approaching a specific space can be performed.

  Further, the present invention may be a program for causing each device to implement the above embodiments, or a recording medium (such as a ROM built-in cassette) on which the program is recorded. By using a program, it is possible to easily change the control by exchanging and using a recording medium on which the program is recorded, or by rewriting it via a network.

  As described above, since the illuminance control system and the program according to the present invention can control the illuminance of each illumination in the room according to the position of the person with the portable wireless device, The present invention can be applied to illumination control of offices, factories and shops in companies.

The block diagram of the illumination intensity control system in embodiment of this invention Flow chart of radio signal in the first embodiment of the present invention Flow chart of another radio signal in the first embodiment of the present invention The block diagram of the illumination intensity control system in 2nd embodiment of this invention Flow chart of radio signal in the second embodiment of the present invention The block diagram of the illumination intensity control system in 3rd embodiment of this invention Flow chart of radio signal in the third embodiment of the present invention The block diagram of another illumination intensity control system in 3rd embodiment of this invention The block diagram of another illumination intensity control system in embodiment of this invention Another radio signal flowchart in the embodiment of the present invention

Explanation of symbols

1 Illumination 2 Portable Radio 3 Illuminance Control Device 4 Illuminance Sensor

Claims (7)

An illuminance control system comprising a portable wireless device that transmits a wireless signal and a plurality of lights that control the illuminance according to the received signal intensity when receiving the wireless signal from the portable wireless device. The illuminance control according to claim 1, wherein at least one of the lights transmits a wireless signal at a predetermined timing, and the portable wireless device returns a response signal when receiving the wireless signal from the light. system. The illuminance control system according to claim 2, wherein, when the illumination receives a wireless signal from another illumination, the illumination is controlled according to the received signal intensity. The illumination transmits a signal including a received signal strength of a signal received from the portable wireless device, receives a signal including the received signal strength, identifies the received signal strength (position of the portable wireless device and The illuminance control system according to claim 1, further comprising an illuminance control device that transmits an illuminance setting value according to a position of the portable wireless device to the illumination. 5. The illuminance detector that wirelessly transmits ambient brightness by an illuminance sensor, wherein the illuminance control device wirelessly receives data of the illuminance detector and sets the illuminance setting value as a multiplier. Illuminance control system. The illuminance control device transmits a wireless signal at a predetermined timing, the portable wireless device transmits a response signal when receiving the wireless signal from the illuminance control device, and the illumination is transmitted from the portable wireless device, respectively. The illuminance control system according to claim 1, wherein the illuminance control is performed according to the received signal intensity by receiving the response signal. The program which makes an electronic device perform at least one part of control of the illumination intensity control system of any one of Claims 1-6.

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