JP2007127348A - Environment regulation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an environment regulation system capable of easily and surely obtaining a more proper environment condition by obtaining distance information to environmental equipment and correcting an environment regulation factor affected by a distance in the environment equipment such as air conditioning equipment and lighting equipment inside a floor divided into a plurality of zones. <P>SOLUTION: The environment equipment transmits predetermined radio data, receives an environment condition instruction transmitted from a remote controller with a sensor and distance information between the environment equipment and the remote controller with the sensor, and then, corrects the environment instruction condition instructed by the remote controller with the sensor according to the distance information. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an environmental adjustment system, and more particularly to an environmental adjustment system including an environmental facility for creating an environmental condition in a closed space, and a remote controller with a sensor for giving an environmental condition command for the closed space to the environmental facility.

Conventionally, as an environmental adjustment system applied to a wide floor such as a building, the floor is divided into several air conditioning zones, and a plurality of outlets are embedded in the ceiling of each zone, so that the air sent from the air conditioner can be There is known an air conditioner that blows out from an outlet and adjusts it to a desired environmental condition (for example, a desired temperature) (see, for example, Patent Document 1).
Each of the plurality of outlets is provided with a damper (VAV unit) that adjusts the flow rate of air blown from each outlet. This damper is configured such that a temperature detection value provided by a temperature sensor provided for each air conditioning zone is fed back, and the damper opening degree and flow rate are controlled by an actuator to satisfy a desired temperature condition (for example, Patent Document 2). Or see 3). The temperature sensor used for this type of purpose is located where it is not affected by other air conditioning zones.

Moreover, the lighting equipment which is one of the environmental adjustment systems in the floor generally takes a form in which a plurality of lighting devices are attached to the ceiling. These lighting fixtures can be turned on / off by a switch mounted on the wall, and can be turned on / off by remote control to improve convenience, and the illuminance of the lighting fixture can be adjusted to achieve the desired brightness. A lighting installation configured as described above has also been attempted.
JP 2004-144348 A Japanese Patent Publication No. 8-23431 JP 2003-4282 A

  However, in the air conditioner described above, the actuators and sensors provided for each of the plurality of air conditioning zones have a one-to-one relationship. For this reason, a sensor must be provided in a place that is not affected by the air blown out from the blowout opening provided in another adjacent air conditioning zone. Therefore, in addition to being restricted by the location where the sensor is installed, not only will the engineering burden be increased so that the correspondence between the sensor and the actuator becomes unambiguous, but also when the floor layout is changed, the air conditioning equipment is updated, etc. However, there is a problem that a great engineering cost for satisfying predetermined environmental conditions occurs.

In addition, when a floor is divided into a plurality of air conditioning zones, if different environmental conditions (for example, temperature conditions) are set in adjacent air conditioning zones, interference may occur between the air conditioning zones. There was a problem that environmental conditions could not be met.
In order to solve this kind of problem, the opening degree of the damper (VAV unit) provided at the outlet and the flow rate of the air blown from the outlet are determined from the remote control with a sensor (hereinafter referred to as a temperature sensor, for example) in the air conditioning zone. A remote control) is placed on the desk, the temperature detected by the temperature sensor and the temperature difference (deviation) set on the remote control with the sensor are obtained, and the damper (VAV unit) is remotely controlled by this deviation. Can be considered.

  However, if a remote control equipped with such a sensor is placed at the user's hand, the remote control can satisfy the temperature condition in the vicinity of the remote control, but the location near the outlet of the air conditioning zone, The distance from the outlet differs from the location in the vicinity of the boundary of the air conditioning zone, and it cannot be denied that there is a temperature difference depending on the location even within the same air conditioning zone. Therefore, even if the remote controller sets the desired temperature, it may cause a temperature difference within the zone, causing discomfort such as over-cooling or over-warming, and the user may think that the air conditioner has failed. It can be felt, and there is a lot of waste from the viewpoint of energy saving.

In addition, lighting equipment, which is one of the environmental adjustment systems in the floor, can be turned on and off by remote control, and can be adjusted for illuminance, but the floor is divided into multiple lighting zones. In this case, there is a problem in that the illuminance differs between the vicinity of the central portion and the vicinity of the peripheral portion of each zone, and appropriate illuminance cannot be obtained.
The environmental adjustment system of the present invention has been made to solve the above-described problems. The purpose of the environmental adjustment system is to provide environmental equipment such as air conditioning equipment and lighting equipment in a floor divided into a plurality of zones. It is an object of the present invention to provide an environmental adjustment system that can obtain environmental information that is affected by the distance, correct environmental adjustment factors that are affected by the distance, and thereby obtain environmental conditions that are easier and more reliable than in the past.

In order to achieve the above-described object, an environmental adjustment system according to the present invention includes an environmental facility that creates an environmental condition in a closed space, and a remote controller with a sensor that gives the environmental condition command of the closed space to the environmental facility by radio waves. An environmental conditioning system comprising:
The environmental equipment transmits predetermined wireless data and receives the environmental condition command transmitted from the sensor-equipped remote control, and the environmental condition command received by the first wireless unit. An adjustment unit for adjusting environmental conditions in a closed space;
The remote control with a sensor includes an input unit for inputting an environmental condition command in a closed space, and a second wireless unit for receiving wireless data transmitted from the first wireless unit of the environmental equipment,
From the environmental condition command or the wireless data transmitted between the first wireless unit and the second wireless unit to at least one of the environmental facility or the remote controller with sensor, the environmental facility and the remote controller with sensor A distance calculation unit that calculates the distance of
The adjustment unit corrects the environmental condition command according to a distance between the environmental equipment and the remote controller with sensor obtained by the distance calculation unit.

The environmental adjustment system described above obtains the distance between the environmental equipment and the remote controller with sensor, corrects the environmental condition output from the remote controller with sensor according to this distance, and satisfies the desired environmental condition.
Preferably, the distance calculation unit includes the environmental equipment, the remote controller with sensor, and the signal strength of the environmental condition command received by the first wireless unit or the signal strength of the wireless data received by the second wireless unit. It is desirable to calculate the distance of.

Alternatively, the distance calculation unit may include the environmental equipment and the sensor-equipped remote control from the environmental condition command or the transmission delay time of the wireless data transmitted between the first wireless unit and the second wireless unit. Configured to determine the distance.
In the above-described environmental adjustment system, the electric field strength of wireless data decreases in inverse proportion to the square of the distance between the environmental equipment and the remote controller with sensor, and the transmission delay time for wireless transmission is the distance between the environmental equipment and the remote controller with sensor. Therefore, the distance between the environmental equipment and the remote control with sensor is obtained.

The environmental equipment is an air conditioner that creates environmental conditions of air in the closed space,
The air conditioner includes a plurality of air outlets disposed in the closed space, and a plurality of actuators that control at least one of the opening of the plurality of air outlets, the flow rate of air blown from the air outlet, or the temperature of the air blown out. And an air conditioning control unit that is connected to the plurality of actuators via a predetermined transmission path and controls driving of each actuator,
The actuator is disposed near each of the plurality of outlets, transmits a predetermined wireless data, and receives an operation command output from the sensor-equipped remote control, and the first wireless unit. A communication control unit for sending the operation command received from the remote controller with the sensor and the distance information obtained by the distance calculation unit to the air conditioning control unit via the transmission path;
The air conditioning control unit receives the operation command received via the transmission path and the distance information obtained by the distance calculation unit, and outputs the operation command corrected according to the distance information to the actuator. It is characterized by having.

  In the above-described environment adjustment system, the first wireless unit provided in the vicinity of the outlet port receives the operation command received from each of the plurality of remote controllers with sensors and the distance information between the air conditioner and the remote controller with sensors obtained by the distance calculation unit, The data is transmitted to an air conditioning control unit that centrally manages a plurality of actuators via a wireless transmission line or a wired transmission line. Then, the air conditioning controller drives the actuator after correcting the operation command using the distance information transmitted from each of the plurality of actuators.

Preferably, the distance calculation unit obtains the distance to the air conditioner from the signal strength of the operation command received by the first wireless unit or the signal strength of the wireless data received by the second wireless unit. Is desirable.
Alternatively, the distance calculation unit may include the air conditioner and the sensor-equipped remote control based on the environmental condition command or the wireless data transmission delay time transmitted between the first wireless unit and the second wireless unit. Configured to determine the distance.

In the environmental adjustment system described above, the electric field strength of wireless data decreases in inverse proportion to the square of the distance between the air conditioner and the remote controller with sensor, and the transmission delay time for wireless transmission is the distance between the air conditioner and the remote controller with sensor. Therefore, the distance between the air conditioner and the remote control with sensor is obtained.
The environmental equipment is an air conditioner that creates environmental conditions of air in the closed space,
The air conditioner includes an air outlet provided in a closed space, an actuator for controlling at least one of an opening of the air outlet, an air flow rate blown from the air outlet, or an air temperature of the air outlet, and a vicinity of the air outlet. A first wireless unit arranged to transmit predetermined wireless data and receive an operation command output from the remote controller with sensor, and an operation command received by the first wireless unit from the remote controller with sensor An air conditioning control unit for controlling the actuator according to
The remote controller with a sensor includes an input unit that inputs an operation command for the actuator, and a second wireless unit that receives wireless data transmitted from the first wireless unit,
From the operation command or the wireless data transmitted between the first wireless unit and the second wireless unit to at least one of the air conditioner or the remote controller with sensor, the air conditioning equipment and the remote controller with sensor It has a distance calculation unit that calculates the distance,
The air conditioning control unit corrects an operation command input from the input unit in accordance with the distance from the air conditioning apparatus obtained by the distance calculation unit.

The environmental adjustment system described above obtains the distance between the air conditioner and the remote controller with sensor, and corrects the environmental condition output from the remote controller with sensor according to this distance, for example, the temperature by the air conditioning adjustment unit to obtain the desired environmental condition. To satisfy.
Preferably, the remote controller with sensor further includes a temperature sensor for measuring a temperature in the vicinity of the remote controller with sensor, and the temperature information detected by the temperature sensor is transmitted from the second wireless unit to the first wireless unit. On the other hand, it is desirable that the air conditioning control unit corrects the operation command according to the distance to the air conditioner obtained by the distance calculation unit and the transmitted temperature information.

The environmental adjustment system described above includes an actuator, a remote controller with a sensor, and a sensor that calculates a deviation calculated as a difference between an operation command (set value) input from an input unit and a temperature (measured value) measured by a sensor. After being corrected according to the distance, the operation command is given to the damper (VAV unit).
The environmental facility is an illumination device that illuminates a predetermined range of the closed space,
The lighting device is disposed in the vicinity of the predetermined space in the closed space, and is disposed in the vicinity of the lighting devices, transmits predetermined wireless data, and is transmitted from the remote controller with sensor. A first wireless unit that receives an illuminance command; and a luminance adjustment unit that adjusts the luminance of the luminaire according to the illuminance command received by the first wireless unit from the sensor-equipped remote control,
The sensor-equipped remote control includes an input unit that inputs an illuminance command for the lighting device, and a second wireless unit that receives wireless data transmitted by the first wireless unit,
From the illuminance command or the wireless data transmitted between the first wireless unit and the second wireless unit to at least one of the lighting device or the remote controller with sensor, the lighting equipment and the remote controller with sensor It has a distance calculation unit that calculates the distance,
The brightness adjusting unit corrects an operation command input from the input unit according to a distance between the lighting fixture and the sensor-equipped remote control obtained by the distance calculation unit.

The environmental adjustment system described above obtains the distance between the lighting device and the remote controller with sensor, corrects the illuminance condition output from the remote controller with sensor according to this distance, and satisfies the desired environmental condition.
Preferably, the distance calculation unit is configured to calculate the lighting fixture and the sensor-equipped remote control from the signal intensity of the illuminance command received by the first wireless unit or the signal intensity of the wireless data received by the second wireless unit. It is desirable to calculate the distance of.

Alternatively, the distance calculation unit may determine whether the lighting fixture and the remote controller with sensor are transmitted from the illuminance command or the transmission delay time of the wireless data transmitted between the first wireless unit and the second wireless unit. Configured to determine distance.
In the above-described environment adjustment system, the electric field strength of wireless data decreases in inverse proportion to the square of the distance between the lighting fixture and the remote control with sensor, and the transmission delay time for wireless transmission is between the lighting fixture and the remote control with sensor. The distance between the luminaire and the remote control with sensor is obtained.

The plurality of lighting devices are respectively connected to the luminance adjusting unit via a predetermined transmission path, and send the illuminance command and the distance information, respectively, while the luminance adjusting unit receives from the plurality of lighting fixtures The illuminance command corrected according to each distance information sent is provided to the luminaire.
The environment adjustment system described above includes the first radio unit and the second radio unit obtained by the operation command and distance information calculation unit received by the first radio unit provided in the vicinity of the lighting fixture from the remote controller with sensor, respectively. The distance information is transmitted to a brightness adjusting unit that centrally manages the brightness of a plurality of lighting fixtures via a wireless transmission path or a wired transmission path. The brightness adjusting unit adjusts the brightness of the lighting fixture after correcting the operation command using distance information transmitted from each of the plurality of lighting fixtures.

  Preferably, the remote controller with sensor further includes an illuminance sensor for measuring the illuminance in the vicinity of the remote controller with sensor, and the illuminance information detected by the illuminance sensor is transmitted from the second wireless unit to the first wireless unit. On the other hand, it is desirable that the brightness adjustment unit corrects the operation command according to the distance between the lighting fixture and the remote control with sensor obtained by the distance calculation unit and the transmitted illuminance information.

The environmental adjustment system described above includes a luminaire and a remote control with a sensor in which a distance calculation unit obtains a deviation obtained as a difference between an illuminance command (set value) input from an input unit and an illuminance (measurement value) measured by a sensor. The luminance adjustment unit corrects the signal according to the distance to the lighting device, and gives it to the lighting device as an operation command.
More preferably, it is desirable that the distance calculation unit obtains the position of the sensor-equipped remote control by a lateration method using at least three different distance information.

  The above-described environment adjustment system obtains the distance between the remote controller with sensor and at least three environmental facilities (air conditioners and lighting fixtures), and obtains the position of the remote controller with sensor by the lateral method.

  According to the environmental adjustment system of the present invention, the temperature, illuminance, etc. in the closed space, the environmental equipment such as an air conditioner or lighting device that creates a desired environmental condition, and the temperature, illuminance, etc. of the closed space given to these environmental equipment The distance from the remote controller with sensor to which the environmental condition command is given by wireless data is obtained from the signal strength of the wireless data received by the remote controller with sensor or the propagation delay time of the wireless data, and the environmental equipment is installed from the remote controller with sensor according to the obtained distance. Since the environmental conditions instructed are corrected, desired environmental conditions can be satisfied.

  In particular, the environmental adjustment system of the present invention receives wireless data transmitted from at least three environmental facilities (air conditioners and lighting devices), and obtains distance information obtained from the signal strength or propagation delay time of these wireless data. Using the lateralization method, the position information of the remote control with sensor is obtained, and this position information is obtained to correct the environmental adjustment factors that are affected by the distance. It is possible to achieve an excellent effect of being able to.

DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of an environment adjustment system of the present invention will be described with reference to the accompanying drawings regarding an air conditioner as an environmental facility. 1 to 6 are examples of embodiments for carrying out the invention, and the present invention is not limited to these drawings.
FIG. 1 is a block diagram showing a first embodiment of the environmental control system of the present invention, in which a floor is divided into a plurality of air conditioning zones as shown in FIG. 2, and a plurality of units are attached to the ceiling of each zone. 1 shows an environmental adjustment system in which a damper or a VAV unit provided at the air outlet is centrally controlled by an air conditioning control unit connected via a predetermined transmission path.

  In FIG. 1, 10 is an actuator attached to the ceiling of each zone divided into a plurality of air conditioning zones (not shown). Although not shown, the actuator 10 includes a damper or a VAV unit (hereinafter sometimes referred to as a damper) 11 that adjusts the flow rate of air sent from an air conditioner via a duct, and drive control of the damper 11. An operation unit 12 is provided. And the air sent from the air conditioner is sent into the predetermined | prescribed air conditioning zone provided with the blower outlet.

  The operation unit 12 adjusts the opening degree of the damper 11, the air flow rate blown from the outlet, the air temperature, and the like under the control of the air conditioning control unit 20 described later. Further, the actuator 10 is provided with a wireless unit 13 that performs communication using a radio wave with a remote controller 30 with a sensor (to be referred to as a remote controller hereinafter). The wireless unit 13 receives information such as an operation command for the damper 11 received from the remote controller 30 and sends predetermined data (beacon) serving as a reference signal for measuring the distance between the remote controller 30 and the actuator 10 to the remote controller 30. Send to

  In addition, the actuator 10 includes a communication interface unit 14 that outputs an operation command received from the remote controller 30 by the wireless unit 13 and distance information between the actuator 10 and the remote controller 30 to the air conditioning controller 20 via a predetermined transmission path 1. Is provided. Incidentally, as the transmission path 1, for example, a wired transmission path such as Ethernet (registered trademark) or a wireless LAN as defined by IEEE 802.11, Bluetooth (registered trademark), ZigBee (registered trademark), or the like is applied. There is no particular limitation as long as the actuator 10 and the air conditioning controller 20 can communicate with each other.

And the actuator 10 comprised in this way is attached to the ceiling of each zone divided into the some air conditioning zone, as shown in FIG.
On the other hand, an air conditioning control unit 20 is connected to the transmission line 1. The air conditioning control unit 20 receives operation commands and distance information received from the remote controller 30 by the wireless units 13 of the plurality of actuators 10 connected to the transmission path 1 via the transmission path 1.

The air conditioning control unit 20 receives a communication interface unit 21 that interfaces with the transmission line 1 for communicating with the actuator via the transmission line 1, and an operation command and distance information received from the actuator 10 via the transmission line 1. In addition, a control unit 22 that sends back an operation command in which the operation command is corrected according to the distance information is provided to the actuator 10.
On the other hand, the remote controller 30 is inputted from the input unit 31 for inputting an operation command (for example, set temperature, actuator on / off, etc.) to the actuator 10, the temperature sensor 32 for detecting the temperature near the remote controller 30, and the input unit 31. The display unit 33 displays the operation command, the temperature detected by the temperature sensor 32, the operation command input from the input unit 31, and the temperature information detected by the temperature sensor 32 are sent to the radio unit 13 of the actuator 10, and A remote control wireless unit 34 that receives a beacon transmitted from the wireless unit 13 is provided. The remote controller 30 also includes a control unit 35 that controls the operation of the input unit 31, the sensor 32, the display unit 33, and the remote control radio unit 34. The control unit 35 measures the distance between the actuator 10 and the remote controller 30, which will be described in detail later, and sends the result as distance information to the air conditioning control unit (controller) 20 via the actuator 10 and the transmission path 1. Take a role.

  Schematically, the environment adjustment system of the present invention configured as described above is characterized in that an operation sent from the remote controller 30 according to the distance information received from the remote controller 30 by the air conditioning control unit (controller) 20. While the command is corrected and the operation command is sent back to the actuator 10, the actuator 10 is in the point of driving and controlling the actuator 10 based on the sent back operation command.

The characteristic environmental adjustment system of the present invention will be described in more detail.
First, there are mainly two methods for measuring the distance between the remote controller 30 and the actuator 10. The first is a method for measuring the electric field strength of radio waves, and the second is a method for measuring the propagation delay time of radio waves.
First, a method in which the second radio unit (the remote control radio unit 34 of the remote controller 30) measures the electric field strength of the radio wave transmitted by the first radio unit (the radio unit 13 of the actuator 10) will be described. In this method, the remote controller 30 receives a beacon transmitted from the wireless unit 13 of the actuator 10 disposed at a predetermined location on the floor. The transmission output of the beacon transmitted by the wireless unit 13 is the same for each of the plurality of actuators 10. The beacon is assigned an identifier (for example, ID) that can determine where the actuator 10 is arranged on the floor, and a different frequency or code (code) for each of the plurality of actuators 10. More specifically, a frequency division multiple access method (FDMA), a time division multiple access method (TDMA), a code division multiple access method (CDMA), a transmission method combining these connection methods, or the like is applied.

  On the other hand, the remote controller 30 measures the electric field strength of beacons output from the plurality of actuators. This electric field strength generally decreases in inverse proportion to the square of the distance between the actuator 10 and the remote controller 30. For this reason, the remote controller 30 holds the relationship between the electric field strength and the distance in advance in the distance calculation means 36 of the control unit 35 as a parameter. Then, the distance calculation means 36 of the remote controller 30 obtains the distance to the actuator 10 from the received electric field strength of the beacon.

  In the environment adjustment system of the present invention, the distance calculation means 36 may be provided in the air conditioning control unit (controller) 20, although not particularly shown, instead of the method of providing the distance calculation means 36 in the remote controller 30. In this case, the first radio unit (the radio unit 13 of the actuator 10) measures the electric field strength of the operation command information sent from the second radio unit of the remote control (the remote control radio unit 34 of the remote controller 30), and the electric field strength is calculated from this electric field strength. The distance calculation means provided in the air conditioning control unit 20 determines the distance between the outlet and the remote controller 30.

  Next, a method for measuring the propagation delay time of the second radio wave will be described. This method measures the propagation delay time of radio waves transmitted between the radio unit 13 of the actuator 10 and the remote control radio unit 34. As a method of calculating the propagation delay time, there is a method (first distance measuring method) in which the wireless data transmitted from the remote controller 30 is received by the actuator 10 and sent back to the remote controller 30 to obtain from the relative time until it reaches the remote controller 30 (first ranging method). There is a method (second distance measuring method) in which a clock synchronized with each of the remote controller 30 and the actuator 10 is provided and obtained from a transmission delay time (absolute time) of wireless data transmitted from the actuator 10 or the remote controller 30.

  First, as shown in FIG. 3, the first ranging method further includes a timer 37 for measuring the propagation delay time, a measurement signal generator 38 for generating a signal (measurement signal) for measuring the propagation delay time, and A remote controller 30 including a measurement signal detection unit 39 that detects a measurement signal returned from the actuator 10 received by the remote control radio unit 34 is used. On the other hand, the wireless unit 13 of the actuator 10 is configured to send back a measurement signal transmitted from the remote controller 30 to the remote controller 30 (not shown in FIG. 3).

  The control unit 35 of the remote control 30 of the environment adjustment system configured as described above gives a measurement start command to the measurement signal generation unit 38 in order to start distance measurement. Upon receiving the measurement start command, the measurement signal generation unit 38 adds a short data length code (measurement signal) indicating distance measurement together with the time information (transmission start time) timed by the time measuring unit 37 to provide remote control wireless communication. The data is sent from the unit 34.

The wireless unit 13 of the actuator 10 that has received the measurement signal transmitted from the remote control wireless unit 34 sends this measurement signal back to the remote controller 30 that has transmitted the measurement signal as it is without notifying the air conditioning control unit 20.
The measurement signal detection unit 39 of the remote controller 30 transmits the detected measurement signal to the control unit 35 when the data received by the remote control radio unit 34 includes a measurement signal. The control unit 35 receives the time (arrival time) when the measurement signal is detected from the time measuring unit 37 and extracts the transmission start time included in the transmitted measurement signal. Then, the distance calculation means 36 calculates the difference between the extracted transmission start time and the arrival time received from the timer 37. This difference includes the internal processing time in addition to the propagation delay time of the measurement signal transmitted between the remote controller 30 and the actuator 10. Therefore, the difference between the remote controller 30 and the actuator 10 is excluded except for this internal processing time. Determine the propagation delay time for round trip. Incidentally, as the internal processing time, the time required for the measurement signal generator 38 to generate the measurement signal, the time required for the remote controller radio unit 34 to transmit the measurement signal, and the radio unit of the actuator 10 receive the measurement signal. Time required for the remote control wireless unit 34 to receive the measurement signal, and time required for internal processing until the arrival time is extracted from the control unit 35 or the time measuring unit 37.

The propagation delay time thus determined is the round trip time between the remote controller 30 and the actuator 10. The distance calculating means 36 calculates the distance between the remote controller 30 and the actuator 10 by multiplying the propagation delay time by [1/2] and multiplying the propagation speed of radio waves (3 × 10 ⁸ [m / s]).
In order to reduce the time delay required for the above-described internal processing, it is preferable that the configuration is constituted only by hardware, preferably without software. Further, the environment adjustment system of the present invention is configured to measure the propagation delay time of the measurement signal returned by the remote controller 30 instead of the method of measuring the propagation delay time of the measurement signal returned by the actuator 10 as described above. May be. In this case, although not particularly shown, the actuator 10 sends a measurement signal, and the distance between the outlet and the remote control 30 is obtained from the propagation delay time until the remote control 30 returns the measurement signal and arrives at the actuator 10.

Next, the second distance measuring method will be described. In this method, a clock synchronized with each of the remote controller 30 and the actuator 10 is provided and obtained from the transmission delay time (absolute time) of wireless data sent from the actuator 10 or the remote controller 30.
In addition to the components of the remote controller 30 described in the first embodiment, the remote controller 30 in the second distance measuring method further includes a signal (measurement signal) for measuring the propagation delay time as shown in FIG. ) And a time synchronization unit 40 that synchronizes the time with the time measurement unit 15 of the actuator 10.

  On the other hand, in addition to the components of the actuator 10 described in the first embodiment, the actuator 10 further includes the time measuring unit 15 that measures the propagation delay time, the time measuring unit 37 of the remote controller 30, and the time of the time measuring unit 15. The time synchronization unit 16 to be synchronized, the measurement signal detection unit 17 that detects the measurement signal transmitted from the remote controller 30 and received by the wireless unit 13, the measurement signal detected by the measurement signal detection unit 17, and the time information measured by the timer unit 15 Based on the above, a distance calculation unit 18 for obtaining the distance between the remote controller 30 and the actuator 10 is provided.

The time synchronizer 40 of the remote controller 30 and the time synchronizer 16 of the actuator 10 configured as described above communicate with each other via the radio units 34 and 13 prior to the distance measurement. Synchronize (match) time.
Then, the control unit 35 of the remote controller 30 gives a measurement start command to the measurement signal generation unit 38. Then, the measurement signal generator 38 receives time information from the time synchronizer 40 and sends a measurement signal from the remote controller radio unit 34 together with this time information.

  On the other hand, when the measurement signal detection unit 17 of the actuator 10 detects that the signal received via the wireless unit 13 includes a measurement signal, the measurement signal detection unit 17 notifies the distance calculation unit 18 that the detection signal has been detected. When receiving the measurement signal detection notification, the distance calculation unit 18 receives the current time (arrival time) from the time measuring unit 15 and extracts the transmission start time included in the measurement signal transmitted from the remote controller 30. The distance calculation unit 18 calculates the difference between the extracted transmission start time and the arrival time received from the time measuring unit 15. This difference is propagated between the remote controller 30 and the actuator 10 except for the internal processing time because the internal processing time is included in addition to the propagation delay time of the measurement signal transmitted between the remote controller 30 and the actuator 10. To determine the propagation delay time. Incidentally, as the internal processing time, the time required for the measurement signal generation unit 38 to generate the measurement signal, the time required for the remote control radio unit 34 to transmit the measurement signal, and the measurement signal detection unit 17 of the actuator 10 measure the measurement signal. And the time for the internal processing until the distance calculating unit 18 extracts the arrival time from the time measuring unit 15.

The distance calculation unit 18 multiplies the propagation delay time obtained as described above by [3 × 10 ⁸ m / s], which is the propagation speed of radio waves, to obtain the distance between the remote controller 30 and the actuator 10.
In order to reduce the time related to the above-described internal processing, it is desirable that the system is configured only by hardware, preferably without software.

The distance information obtained as described above, together with the operation command input from the input unit 31 and the detected temperature information measured by the sensor 32, controls the air conditioning via the wireless unit 13 of the actuator 10 and the transmission path 1. Given to part 20.
In the case of proportionally controlling the actuator 10, the air conditioning controller 20 calculates a deviation (e) that is a difference between the set value (PV) input from the input unit 31 and the measured value (SV) of the temperature measured by the sensor 32. , [E = SV−PV]. Then, from the distance information (D) between the remote controller 30 and the actuator 10, the control gain (K) is obtained as [K∝1 / D], and the operation amount (MV) of the actuator 10 is
[MV = K · e]
Asking. The control unit 22 corrects the operation amount (MV) of the actuator 10 according to the distance information between the remote controller 30 and the actuator 10 in this way, and then sends the operation amount (MV) to the actuator 10.

The actuator 10 that has received the operation amount from the air conditioning control unit 20 gives the operation amount (MV) to the operation unit 12 to adjust the opening degree of the damper 11 and the air flow rate blown from the outlet.
Further, when the actuator 10 performs PID control of the actuator 10, if the proportional gain is Kp, the integral gain is Ki, the integral time is Ti, the differential gain is Kd, and the integral time is Td, the operation amount (MV) is ,
[MV = K (Kp · e + Ki · Ti ⁻¹ edt + Kd · Td (de / dt))
Can be obtained as As described above, the control unit 22 corrects the operation amount (MV) of the actuator 10 based on the distance information between the remote controller 30 and the actuator 10, and then sends the operation amount (MV) to the actuator 10.

Thus, according to the environmental adjustment system according to the first embodiment of the present invention configured as described above, the distance between the remote controller 30 instructing the temperature command and the actuator 10 is determined from the signal strength of the wireless data received by the remote controller 30. Since the obtained temperature command is corrected in accordance with the obtained distance, desired environmental conditions can be satisfied.
The first embodiment described above exemplifies a method for obtaining the operation amount of the actuator 10 from the operation command and distance information obtained from one remote controller 30 existing in the zone. However, this embodiment can be modified. For example, as shown in zones C and D of FIG. 2, a plurality of remote controllers 30 are in the same zone, and each remote controller 30 can be applied even when the actuator 10 sends an operation command and distance information. In this case, the air conditioning control unit 20 may obtain the operation amount of the actuator 10 by weighting the operation amount (MV) derived from the operation commands and distance information of the plurality of remote controls 30 by the distance.

  For example, the distance between the actuator 10 and the plurality of remote controllers 30 is [L1, L2,..., Ln], and the operation amount derived from the operation command and distance information sent from each remote controller 30 is [MV1, MV2,..., MVn], and the total distance to each remote controller 30 is L0 [= L1 + L2 +. Then, the contribution rate according to the position of each remote controller 30 is [C1, C2,..., Cn] = (1 / L0) × [L1, L2,..., Ln]. The operation amount of the actuator 10 may be [MV = C1 · MV1 + C2 · MV2 +... + Cn · MVn].

Thus, according to the modification according to the first embodiment of the present invention configured as described above, the contribution amount according to the distance is calculated and the operation amount (MV) is corrected. Even when 30 is present, an appropriate operation amount of the actuator 10 can be derived, and desired environmental conditions can be easily obtained.
Further, the remote controller 30 receives a beacon transmitted from each of at least three actuators 10 and obtains a distance from each actuator 10, thereby more accurately determining where the remote controller 30 is located on the floor. Information can be obtained. This method applies a lateration method applied to GPS (Global Positioning System) and the like. In this lateralization method, when the remote controller 30 is located at a point P as shown in FIG. 5, the distances from the point P to the three actuators (L1, L2, L3) are received by the remote controller 30 at the point P. The distance (E1, E2, E3) is obtained from the electric field strength or propagation delay time for each actuator. For convenience, when the position of the point P is set to (x, y) of the x and y coordinates, the estimated distance of the distance between the i-th actuator 10 and the remote controller 30 is Di, and the distance of the actuator 10 is Ei. The position of (x, y) that minimizes the value of F (x, y) obtained by the following expression represents the coordinates (x, y) of the point P. That is, the coordinates (x, y) represent the position of the point P.

F (x, y) = Σ {Di (x, y) −Ei} ²
Here, Σ is the sum from i = 1 to N.
The air-conditioning control unit 20 thus obtains position information of the remote control 30 existing in the floor, and determines which position in the zone divided in advance in the floor based on this position information. Then, the contribution rate of the remote controller 30 existing for each zone may be obtained as described above, and the operation amount of the actuator 10 disposed in each zone may be determined. By doing in this way, the operation amount of the actuator 10 with higher accuracy can be derived, and it becomes possible to adjust to more preferable environmental conditions.

  Next, a second embodiment of the present invention will be described with reference to FIG. The second embodiment is different from the first embodiment described above in that the damper (VAV unit) 11 provided in each actuator 10 is controlled without providing the air conditioning control unit 20 that centrally controls the plurality of actuators 10. The control unit 19 is provided. In addition, in FIG. 6, the same code | symbol is attached | subjected to the site | part similar to 1st embodiment mentioned above, and the description is abbreviate | omitted.

  In this figure, the remote controller 30a measures the distance from the actuator 10a by the method described in the first embodiment. The measured distance information is sent to the actuator 10 from the remote controller 30a together with an operation command. The control unit 19 of the actuator 10a receives the operation command and the distance information from the remote controller 30a, corrects the operation command with the distance information as described in the first embodiment, and gives the corrected operation command to the operation unit 12. The damper 11 is controlled by the proportional control or the PID control described above.

  When there is another remote controller 30b in the zone where the actuator 10a is disposed, the actuator 10a also receives an operation command and distance information from this remote controller 30b. Then, the control part 19 calculates the contribution rate according to distance as described in 1st embodiment, and sets the operation amount of the damper 11 based on this calculated contribution rate. Of course, when another remote controller 30c is in the same zone, the control unit 19 similarly determines the contribution rate and sets the operation amount of the damper 11.

Thus, according to the environment adjustment system of the second embodiment of the present invention configured as described above, the contribution rate according to the distance is calculated even when there are a plurality of remote controllers in the same zone. An appropriate operation amount of the actuator 10 can be derived, and desired environmental conditions can be easily obtained.
In addition, the environment adjustment system of this invention is applicable also to lighting equipment besides the air conditioning equipment mentioned above. In this case, the temperature sensor 32 of the remote controller 30 is an illuminance sensor that measures the illuminance in the vicinity of the remote controller 30, and the input unit 31 is an input means for inputting operation commands such as turning on / off the lighting fixtures in the zone and desired illuminance. The display unit 33 displays the setting state and illuminance of the lighting fixture input from the input unit 31.

On the other hand, the actuator 10 is a lighting fixture that can change not only the on / off operation but also the luminance in accordance with a command from the operation unit 12 instead of the damper 11.
Then, the luminaire is controlled by the centralized control method or the distributed control method similar to the first and second embodiments described above. Specifically, the illuminance changes in inverse proportion to the square of the distance from the lighting device. Therefore, the distance between the remote controller 30 and the lighting fixture may be obtained as described above, and the luminance of the lighting device may be adjusted according to this distance. Of course, even when a plurality of remote controllers 30 are in the same zone, the contribution rate is calculated as described above, and the luminance of the lighting fixture may be controlled in accordance with this contribution rate. It is possible to easily obtain the effects such as practical use.

  It should be noted that the environment adjustment system of the present invention is not limited to the above-described embodiment, and various changes can naturally be made without departing from the scope of the present invention.

The block which shows the air-conditioning system taken as the environment adjustment system which concerns on 1st embodiment of this invention, and which takes the structure provided with the air-conditioning control part which connects several air-conditioning apparatuses to a predetermined transmission line and carries out centralized control of these air-conditioning apparatuses FIG. It is a figure which shows the air conditioner and remote control which are arrange | positioned at each zone of the floor divided | segmented into the several zone. It is a block diagram which shows the structure of the remote control which calculates | requires the distance of an actuator and a remote control from the round-trip time of the radio wave transmitted between an actuator and a remote control. It is a block diagram which shows the structure of the air conditioning system which calculates | requires the distance of an actuator and a remote control from the transmission delay time of the radio wave transmitted between an actuator and a remote control. It is a figure which shows the method of calculating | requiring the position of a remote control by the lateralization method. It is a block diagram which shows the air-conditioning system which takes the structure which a some air conditioner carries out distributed control as an environmental adjustment system which concerns on 2nd embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Transmission path 10 Actuator 11 Damper 12 Operation part 13 Radio | wireless part 14 Communication interface part 20 Air-conditioning control part 21 Communication interface part 22 Control part 30 Remote control 31 Input part 32 Sensor 33 Display part 34 Remote control wireless part 35 Control part

Claims (14)

An environmental adjustment system having an environmental facility for creating an environmental condition in a closed space, and a remote controller with a sensor for giving the environmental condition command of the closed space to the environmental facility by radio waves,
The environmental equipment transmits a predetermined wireless data, and a first wireless unit that receives the environmental condition command transmitted from the sensor-equipped remote control;
An adjusting unit for adjusting environmental conditions in a closed space in accordance with the environmental condition command received by the first radio unit;
The sensor-equipped remote control includes an input unit for inputting an environmental condition command in a closed space;
A second wireless unit for receiving wireless data transmitted by the first wireless unit of the environmental equipment;
From the environmental condition command or the wireless data transmitted between the first wireless unit and the second wireless unit to at least one of the environmental facility or the remote controller with sensor, the environmental facility and the remote controller with sensor A distance calculation unit that calculates the distance of
The said adjustment part correct | amends the said environmental condition instruction | command according to the distance of the said environmental installation and the said remote control with a sensor which the said distance calculating part calculated | required, The environment adjustment system characterized by the above-mentioned.   The distance calculation unit is configured to determine the distance between the environmental equipment and the remote controller with sensor from the signal strength of the environmental condition command received by the first wireless unit or the signal strength of the wireless data received by the second wireless unit. The environment adjustment system according to claim 1, wherein   The distance calculation unit is a distance between the environmental equipment and the remote controller with sensor from the environmental condition command transmitted between the first radio unit and the second radio unit or a transmission delay time of the radio data. The environment adjustment system according to claim 1, wherein The environmental equipment is an air conditioner that creates environmental conditions of air in the closed space,
The air conditioner includes a plurality of outlets arranged in the closed space,
A plurality of actuators for controlling at least one of the opening degree of the plurality of outlets, the flow rate of air blown from the outlets or the temperature of the outlet air;
An air conditioning control unit that is connected to the plurality of actuators via a predetermined transmission path and controls driving of each actuator,
The actuator is disposed near each of the plurality of outlets, and transmits a predetermined wireless data, and a first wireless unit that receives an operation command output from the sensor-equipped remote control;
A communication control unit that sends the operation command received from the remote controller with the sensor and the distance information obtained by the distance calculation unit to the air conditioning control unit via the transmission path, the first wireless unit;
The air conditioning control unit receives the operation command received via the transmission path and the distance information obtained by the distance calculation unit, and outputs the operation command corrected according to the distance information to the actuator. The environment adjustment system according to any one of claims 1 to 3, further comprising:   The distance calculation unit obtains a distance to the air conditioner from the signal strength of the operation command received by the first wireless unit or the signal strength of the wireless data received by the second wireless unit. Item 5. The environmental adjustment system according to Item 4.   The distance calculation unit is configured to determine a distance between the air conditioner and the remote controller with the sensor based on a transmission delay time of the environmental condition command or the wireless data transmitted between the first wireless unit and the second wireless unit. The environment adjustment system according to claim 5, wherein The environmental equipment is an air conditioner that creates environmental conditions of air in the closed space,
The air conditioner includes an air outlet disposed in a closed space,
An actuator for controlling at least one of the opening of the outlet, the flow rate of air blown from the outlet, or the temperature of the blown air;
A first wireless unit disposed in the vicinity of the outlet and transmitting predetermined wireless data and receiving an operation command output from the remote controller with sensor;
The first radio unit includes an air conditioning control unit that controls the actuator according to an operation command received from the sensor-equipped remote control,
The remote controller with sensor includes an input unit for inputting an operation command for the actuator;
A second wireless unit for receiving wireless data transmitted by the first wireless unit;
From the operation command or the wireless data transmitted between the first wireless unit and the second wireless unit to at least one of the air conditioner or the remote controller with sensor, the air conditioning equipment and the remote controller with sensor It has a distance calculation unit that calculates the distance,
The environment adjustment system according to claim 1, wherein the air conditioning control unit corrects an operation command input from the input unit in accordance with a distance from the air conditioner obtained by the distance calculation unit. The sensor-equipped remote control further includes a temperature sensor that measures the temperature in the vicinity of the sensor-equipped remote control, and sends temperature information detected by the temperature sensor to the first radio unit from the second radio unit,
The environment adjustment system according to claim 4 or 7, wherein the air conditioning control unit corrects the operation command in accordance with a distance from the air conditioner obtained by the distance calculation unit and the transmitted temperature information. The environmental facility is a lighting device that illuminates a predetermined range of the closed space,
The lighting device includes a plurality of lighting fixtures arranged at predetermined locations in the closed space;
A first wireless unit that is disposed in the vicinity of these lighting fixtures, transmits predetermined wireless data, and receives an illuminance command transmitted from the remote controller with sensor,
The first wireless unit includes a luminance adjustment unit that adjusts the luminance of the lighting fixture according to the illuminance command received from the remote controller with sensor,
The sensor-equipped remote control includes an input unit that inputs an illuminance command for the illumination device;
A second wireless unit for receiving wireless data transmitted by the first wireless unit;
From the illuminance command or the wireless data transmitted between the first wireless unit and the second wireless unit to at least one of the lighting device or the remote controller with sensor, the lighting equipment and the remote controller with sensor It has a distance calculation unit that calculates the distance,
The said brightness adjustment part correct | amends the operation command input from the said input part according to the distance of the said lighting fixture and the said remote control with a sensor which the said distance calculating part calculated | required. Environmental adjustment system.   The distance calculation unit calculates the distance between the lighting fixture and the sensor-equipped remote control from the signal intensity of the illuminance command received by the first wireless unit or the signal intensity of the wireless data received by the second wireless unit. The environmental adjustment system according to claim 9, which is desired.   The distance calculation unit is configured to determine a distance between the lighting fixture and the remote controller with the sensor from a transmission delay time of the illuminance command or the wireless data transmitted between the first wireless unit and the second wireless unit. The environmental adjustment system according to claim 9, which is desired. The plurality of lighting devices are respectively connected to the luminance adjustment unit via a predetermined transmission path, and send the illuminance command and the distance information, respectively.
The environment adjustment system according to claim 9, wherein the luminance adjustment unit is configured to give the illuminance command the illuminance command corrected according to each distance information transmitted from the plurality of luminaires. The sensor-equipped remote control further includes an illuminance sensor that measures the illuminance in the vicinity of the sensor-equipped remote control, and sends the illuminance information detected by the illuminance sensor to the first wireless unit from the second wireless unit,
The environment according to claim 9, wherein the brightness adjustment unit corrects the operation command according to a distance between the lighting fixture and the remote control with a sensor obtained by the distance calculation unit and the transmitted illuminance information. Adjustment system.   The environment adjustment system according to claim 1, wherein the distance calculation unit is configured to obtain a position of the remote controller with a sensor by a later method using at least three different distance information.

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