JP2006029757A - Air conditioning system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioning system capable of achieving air conditioning environment desired by an individual or a facility manager in an office, saving energy by collectively controlling the whole, adopting LAN for network, and capable of flexibly coping with system variation. <P>SOLUTION: A management index is introduced, the management index is controlled in a management temperature range, and thereby the environment required by persons seated in a plurality of task regions is achieved, air conditioning control in an ambient region can be effectively performed, and energy can be saved. Next, apparatuses constituting the system are connected by LAN, a measurement system network is constituted by an agent manager model, and management/control by SNMP manager is executed. In an air conditioning system, an air conditioning management manager transmits TCP/IP control packet to respective air conditioning units and outdoor units based on the information of a measurement system, and the respective air conditioning units and the outdoor units are controlled by a communication adapter. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention integrates control of the air conditioning load to the task area and the air conditioning load to the ambient area, and realizes the environment of the task area and the environment of the ambient area as set, while making the system more flexible than the conventional system. The present invention relates to an air conditioning system that realizes expandability, high maintainability, low system cost and energy saving.

  Attention is focused on a task / ambient air conditioning system that efficiently air-conditions the local environment (task area) in which an office resident stays, rather than air-conditioning the entire office room (ambient area) at the same temperature. In this system, taking into account the uneven distribution of people who are heat generation sources, it is possible to tailor the preferences such as temperature, humidity and air flow that have individual differences. Examples of such systems include an air conditioning system (for example, Patent Document 1), an area-specific environment provision control system (for example, Patent Document 2), and the like.

As for the air conditioning control network, LonWorks etc. is generally widely used for air conditioning control in buildings and factories. As an example of applying LAN widely used for in-house data communication to the air conditioning control network, LAN connection air conditioning There is a machine system (for example, Patent Document 3).
Japanese Unexamined Patent Publication No. 6-185783 JP 2004-163088 A JP-A-9-79654

The task / ambient air conditioning system has many problems on the one hand that it can be expected to improve the intellectual productivity because it performs the air conditioning as required by the people in the office.
First, because the office is divided into a task area and an ambient area, and air conditioning control is performed independently of each other, air conditioning equipment and control systems for the task area are complicated, and system development costs and introduction costs are higher than conventional methods. Become. Next, there is a tendency to consume a large amount of energy in order to put weight on the environment of the occupants, particularly the temperature control in the task area.
In addition, if the location, size, number, etc. of office employees are changed due to a change in the organization of the company, it will be necessary to relocate or add task air conditioners, or change or enhance the control system. In general, it requires costs such as costs and system development costs, and a construction period for the change, and cannot be easily changed.

  An object of the present invention is to provide an air conditioning system having the following two features that solves the above problems. In other words, the first feature is that the air conditioning environment (task area) desired by each individual in the office is realized, and at the same time, the entire room (ambient area) also realizes the air conditioning environment desired by the facility manager, etc., and the overall system is controlled. By implementing LAN (Ethernet) in the air conditioning control network, the control system that accompanies relocation / expansion of task air conditioners, ambient air conditioners, outdoor units, etc. It can easily and flexibly respond to changes and additions, and the time period can be greatly shortened.

Means for Solving the Invention

  In order to solve the above problems, the present invention defines the basic configuration of the air conditioning system in claim 1. That is, an ambient air conditioner for air-conditioning the entire room, a task air conditioner for air-conditioning a plurality of limited space areas, and an outdoor unit equipped with a compressor or a condenser in the case of a refrigerant system or For non-refrigerant systems, communicates with an agent that connects refrigerators, boilers, and other sensors that measure the indoor environment such as temperature sensors, humidity sensors, and air pollution sensors, controllers that set temperature, humidity, etc. An air conditioning management manager that controls the ambient air conditioner, the task air conditioner, the outdoor unit, etc. using the temperature, humidity, etc. data acquired in step S1 to control the temperature, humidity, etc. to the values set by the controller; The air conditioning management manager is integrated with the overall management manager to control and manage the air conditioner, outdoor unit, environmental box, controller, air conditioning pipe, etc. Manager and supervisor manager, characterized in that connected in LAN.

  Next, the agent has an upper / lower logical hierarchical structure. That is, the subordinate agent has a function of processing and transmitting a TCP / IP packet in order to acquire and transmit measurement data from various sensors such as temperature, humidity, and air contamination to the outside. The upper agent receives TCP / IP packets transmitted from a plurality of lower agents via the LAN, retrieves temperature data, uses the temperature data, etc. to calculate a management index for air conditioning control, and is connected to the LAN. It has a function to transmit to the air conditioning management manager.

  The air conditioning management manager has a function of transmitting and receiving temperature and humidity set values from a temperature controller, a function of transmitting and receiving measured data such as temperature and humidity and a set value from a temperature controller via the LAN with the agent, and air conditioning control. A function for calculating optimal control data to perform the control, and a function for performing air-conditioning control by transmitting / receiving control data to / from the ambient air conditioner, task air conditioner, outdoor unit, refrigerator, boiler, and the like.

  Furthermore, the air conditioning management manager controls and manages the agent, the task air conditioner, the ambient air conditioner, the outdoor unit, the refrigerator, the boiler, and the like when the office layout is changed due to a change in the organization of the company or a personnel change. This device is characterized in that it can be easily set to change or add a device to be controlled and managed by using a VLAN function or the like of an IP address set for each device.

  In addition, the agent is characterized in that when determining the upper or lower logical structure, the agent determines a value such as an IP address or a MAC address among a plurality of target agents.

  Furthermore, the upper agent uses its own temperature, humidity, etc. data and temperature, humidity, etc. data collected from a plurality of lower agents, and the maximum value, minimum value, weighted sum of the collected data, which is an index for air conditioning management, is used. And the weighted average value is calculated, the management range such as temperature and humidity sent from the air conditioning management manager and recorded in its own management database is compared with the index, and if it falls outside the range, the air conditioning management manager The air conditioning management manager having the function of notifying the contents transmits control data to the task area air conditioner, ambient air conditioner, outdoor unit, etc., and the air conditioning management index is within the management range. The air conditioning is controlled so as to be within the range.

  Further, the subordinate agent compares the temperature and humidity data measured by itself with the set values of temperature, humidity, etc. transmitted from the air conditioning management manager and recorded in its management database. When it exceeds, the air conditioning management manager has a function to notify the contents, and the air conditioning management manager that has received the notification sends control data to the task area air conditioner, ambient air conditioner, outdoor unit, etc. The air conditioning is controlled so that the deviation falls within an allowable range.

The invention's effect

This system can provide a great effect as described below.
First, by managing the temperature management of the task area that realizes the comfort of the occupants and the temperature management of the whole room with temperature indexes such as Tmax, Tmin, and Tave, individual needs are adapted to the management temperature range, and the whole By adjusting the air conditioning, energy saving and comfort can be achieved. To add a little explanation, the system administrator or building equipment administrator sets the ambient temperature that occupies most of the office room, so the ambient area where the air conditioner is heavily loaded is controlled to the management temperature range, In addition, by absorbing the increase in the thermal load in the task area with the ambient thermal load, it is possible to control the energy consumption of the entire room low.

  Next, by incorporating an agent, which is a semiconductor product, in the configuration of the air conditioning system, it is excellent in real-time property, and information about temperature changes and movements of people can be instantly transmitted to the air conditioning management manager. In addition, since the power consumption is low and the price is low, energy saving and system cost of the entire system can be reduced.

  The existing general-purpose system (network management system using SNMP) can be used for the air-conditioning control system, which can reduce system development costs and shorten the development period. Fault management, device configuration management, performance management, statistics, which are the original functions of SNMP Management is possible.

  In addition, because the air conditioning control network is configured with a LAN, the air conditioning management manager can control indoor units and outdoor units at high speed, and the open protocol allows system costs, equipment costs, and maintenance management. Cost can be significantly reduced. In addition, it is possible to respond freely by using a VLAN function or the like for rearrangement of air conditioning equipment or group reorganization due to increase or decrease of personnel, organizational change, etc., and it is excellent in equipment expandability.

  Embodiments of the present invention will be described below with reference to FIGS. FIG. 1 is a model of an office room to which the air conditioning system of the present invention is applied. The local space 7a, 7b, 7c where the resident of the office stays is defined as a task area, and the entire room 6 subject to air-conditioning control is defined as an ambient area, and an agent connected with a temperature sensor, humidity sensor, air pollution sensor, etc. is incorporated. The environment box 3 (3a to 3d) is installed in the task area 7 and the ambient area 6 in the room. In the case of FIG. 1, the ambient area 6 is one in the whole room, and one ambient air conditioner 1 and one environmental box 3a are installed on the ceiling. Although three task areas are described, the occupants in the room are present at two places 7a and 7b, and no resident is present in the task area 7c at the meeting corner. The illustrated air conditioning system is a general building multi-air conditioning system that is separated into an indoor unit and an outdoor unit.

Here, the air conditioning management index, which is a feature of the present invention, will be described using the model of FIG. If the temperature of the task area 7a is T1, the temperature of the task area 7b is T2, the temperature of the task area 7c is T3, and the temperature of the ambient area 6 is T4, the temperature variable N of the air conditioning control becomes 4. Using these values, the maximum value Tmax, the minimum value Tmin, the total sum Tsum weighted to each temperature, and the weighted average value Tave are used as the air conditioning control management indices shown by the following formulas (f1) to (f4). To do. The reason why the weight is given here is that when the average value Tave is calculated, the space volume differs greatly between the ambient area and the task area, and a weighting factor proportional to the space volume is required to represent the average temperature.
Maximum indoor temperature Tmax = Max (T1, T2, T3, T4) (f1)
Indoor temperature minimum value Tmin = Min (T1, T2, T3, T4) (f2)
Indoor temperature total Tsum = w1 * T1 + w2 * T2
+ W3 * T3 + w4 * T4 (f3)
(However, w1 + w2 + w3 + w4 = 4)
Average indoor temperature Tave = Tsum / 4 (f4)

In addition, although said numerical formula (f1)-(f4) is a case where there are four types of temperature variables T1-T4, there are many task areas etc. in a large-scale air-conditioned space, and there are N types of temperature variables T1-Tn. Can be defined by the following mathematical formulas (F1) to (F4).
Maximum indoor temperature Tmax = Max (T1,..., Tn) (F1)
Indoor temperature minimum value Tmin = Min (T1,..., Tn) (F2)
Total temperature in the room Tsum = Σwi * Ti (F3)
(However, Σwi = N)
Average indoor temperature Tave = Tsum / N (F4)

  Next, the system configuration (physical network configuration) of the present invention will be described. FIG. 2 shows a system configuration when the air conditioning system is applied to the model of FIG. 1, in which an air conditioning system of an office 24 in a building and a general management manager 17 of a remote management site 26 are connected via an IP network 19. Yes.

  The system configuration in the office 24 is such that a temperature sensor 14 for measuring temperature and humidity, an agent 22 connected to the humidity sensor 15 are connected to a communication line (LAN) 18 in a total of four in a task area and one in an ambient area. ing. In addition, three task air conditioners 10 (10a, 10b, 10c), an ambient air conditioner 12, and an outdoor unit 13 are connected to a communication device (communication adapter) 11 via a communication line 21, respectively. Moreover, the controller 17 which can set temperature, humidity, etc. to the task air conditioner 10 and ambient air conditioner is connected to each air conditioner. An air conditioning management manager 16 is connected to a communication line (LAN) 18 to manage and control task and ambient air conditioners, agents, and outdoor units.

  A communication device (communication adapter) 11 (11a to 11e) that connects the communication line 21 of each air conditioner and the LAN 18 has a function of converting a control packet from the manager into an original protocol (control command) of the air conditioner manufacturer, and a controller 17 It has a function of converting an original protocol describing setting values (temperature, wind direction, etc.) from (17a to 17d) into an IP packet for transmission to the management manager 16. The air conditioning management manager 16 is responsible for both communication with the agent 22 and control of the task air conditioners 10a, 10b and 10c, the ambient air conditioner 12 and the outdoor unit 13.

  The general management manager 17 of the management site 26 can control and manage the air conditioners 10 and 12, the outdoor unit 13 and the agent 22 in the remote office 24, and can also exchange information with the air conditioning management manager 16. .

  In order to explain the mechanism by which the air conditioning management manager controls the air conditioner in more detail, a description will be given using the logical network shown in FIG. This air conditioning system is composed of two systems, a measurement system 30 for measuring and monitoring indoor temperature and the like, and a control system 31 for controlling the air conditioner. Software for managing and controlling the measurement system 30 is an SNMP management manager 33, and the control system The software that manages 31 is control software 34. Furthermore, an air conditioning management manager 32 is configured as a higher-level application of two software.

  The measurement system is composed of agents 35 and 37 to which temperature sensors and the like are connected, and an SNMP manager 33, and the upper agent 35 (Task 2 in the case of FIG. 3) obtains temperature information (measured values) from each lower agent 37. Then, using the collected temperature information (T1 to T4), the values of the equations (f1) to (f4) are obtained and used as an index for air conditioning control. The upper agent compares the set temperature range with the measured value, and if the measured value deviates from the temperature range, notifies the SNMP manager 33 by Trap. The air conditioning management manager 32 that has received the Trap information from the SNMP manager 33 controls the air conditioning equipment 38 using the control software 34.

  Upon receiving an air conditioner control instruction from the air conditioning management manager 32, the control software 34 transmits a control packet to the communication device 36 of the air conditioner 38 outside the temperature management range. The control packet reaches the communication device 36, and the communication device 36 converts this into a control command for the air conditioner to control the air conditioner 38.

Which of the agents is higher in the measurement system 30 is determined in ascending / descending order of the address value by exchanging information on the IP address or MAC address by ARP or the like. The MAC address / IP address is set from the air conditioning management manager 32 when the system is constructed. Next, when not operating normally due to a failure of a sensor or the like rather than a failure of the agent itself, the higher agent 35 is determined from other agents excluding the agent. Further, when the upper agent 35 itself fails, it is recognized that another agent has failed due to the keep-alive function between the agents, so the lower agent 37 next to the address value is promoted, and the upper agent 35 Perform the function.
Note that the failed agent does not respond to polling from the SNMP manager 33, or other agents notify the SNMP manager 33 by Trap, so that the SNMP manager 33 can identify the ID and location of the failed agent and efficiently maintain the device. Can be done.

  Next, before describing the details of the system flow of air conditioning control, the concept of the processing flow of air conditioning control adopted in the present invention will be described with reference to temperature control in the task area and ambient area as an example with reference to FIG.

  First, in the temperature control of the task area 45, there is a range of temperatures at which an individual can set the air conditioner in the task area 45, and the facility manager or system administrator sets the upper limit 41 and lower limit 42 of the temperature width 40 (this The temperature setting value 50 set by an individual in the task area 45 has priority. Accordingly, when the set value exceeds the management temperature range, the upper limit 41 and the lower limit value 42 of the management temperature range 40 are changed, and the set value 50 of the task area becomes the correction value 51.

  Secondly, task area air-conditioning control is performed when a person is present / resident in the task area 45, and is not subject to air-conditioning control when not present / resident. In addition, the presence / absence is determined by an infrared sensor or the like.

  Thirdly, the minimum value Tmin48 of the temperature in all the task areas is controlled to be equal to or higher than the lower limit value 42 of the set management temperature range 40. However, when no person is present or resident in the task area, the value may be lower than the lower limit 42 (during heating).

Fourthly, similarly, the maximum value Tmax47 of the temperature of all task areas is controlled to be equal to or less than the upper limit value 41 of the set management temperature range. However, when no person is present or resident in the task area, the upper limit 41 may be exceeded (during cooling).

  Next, preconditions in the ambient area 46 will be described. First, the ambient temperature can be set by the facility manager or system manager. Second, similarly to the task area, the ambient temperature is set to a management temperature width 44 having an upper limit value 41 and a lower limit value 43, and the ambient temperature is controlled to be within the management temperature width 44. However, the ambient temperature range 44 and the task range temperature range 40 may be different.

The air conditioning control incorporating the above basic concept has three types of phases as shown in FIG. 5 (1) Initial setting phase (S101)
(2) Setting check phase (S102)
(3) Temperature control phase (S103)
Divided into two. Each phase further comprises a plurality of steps.

  In the first initial setting phase (S101), as described with reference to FIG. 3, the logical network configuration (measurement system 30) of a large number of agents installed in the ambient area and the task area is determined.

  In the operation of the system in this phase (S101), first, agents in each control box installed in the room create an ARP table after performing communication such as ARP with each other (S111, S115). Next, the setting conditions for determining whether the agent is a higher agent or a lower agent depending on the magnitude of the MAC / IP address value are exchanged (S112, S116). Next, the measurement logical network shown in FIG. 3 is constructed (S117). Finally, the higher-level agent notifies the other agents that it is higher-level (S118), and the lower-level agent transmits the measured values and set values of temperature and humidity data to the higher-level agent (S114). To do.

  In the second setting check phase (S102), the set temperature in the task area set by the resident in the room using the temperature controller and the ambient set temperature set by the administrator using the temperature controller are the system administrator or building equipment administrator. Is determined to satisfy the set management temperature range (task area, ambient area), and if it is outside, each set value is changed to the management temperature.

  In the processing flow, first, each temperature controller (S121) in the task area and the ambient area transmits (S122) the value (S122) set / changed by the resident or the administrator (S123). Second, the communication adapter converts the setting information received from each temperature controller (S126) into an IP packet (S126) and transmits it to the air conditioning management manager (S127). Third, the air conditioning management manager determines whether the set value exceeds the task temperature width upper limit value and the ambient temperature width upper limit value (S132) with respect to the received setting information (S131), and similarly, the set value is the task temperature width lower limit value. It is determined whether or not the value and the ambient temperature width lower limit value are below (S132). If the set value is not the result of the fourth determination (S133), the correction value is transmitted to the corresponding temperature controller (S134), and the received temperature controller (S124) changes the set value to the correction value. Displayed on the liquid crystal or the like (S125). Finally, the air conditioning management manager transmits the setting information to the upper agent (S135), and the upper agent registers it in its own MIB (S137).

Next, the third temperature control phase will be described. The higher-level agent performs the following temperature control in cooperation with the air conditioning management manager.
First

Using the air conditioning management indexes obtained by the formulas (f1) to (f4), it is determined whether these indexes fall within the management temperature range of the task area / ambient area. The first step (see FIG. 8) for controlling the temperature and controlling the temperature, and then the corresponding indoor unit so that each measured temperature value approaches the set temperature set by the indoor occupant or the building equipment manager, etc. The second step (see FIG. 9) for controlling the temperature by controlling the flow rate of the refrigerant and the rotational speed of the compressor of the outdoor unit.

  This will be described with reference to FIG. 8 showing the processing flow of the first step. First, the upper agent uses the measured temperature and humidity data received from each lower agent (S142), and calculates the air conditioning management indices Tmax, Tmin, Tsum, and Tave from equations (f1) to (f4) (S143). )

  First, the higher-level agent determines whether Tmax exceeds the task temperature range upper limit value and the ambient temperature range upper limit value (S144, S145). If it exceeds, the Trap packet (the IP address of the higher agent is set). (Including) is transmitted to the air conditioning management manager (S146). On the other hand, if it is within the setting range (S145), the process proceeds to the next step (S147).

  The air conditioning management manager that has received the trap (S150) sends a control packet to the corresponding communication adapter (S151) and receives the packet (S156) so that the temperature of the corresponding task area or ambient area falls within the management temperature range. The communication adapter converts the control packet into a control command for the indoor air conditioner (S157), and controls the temperature of the refrigerant by controlling the flow rate of the refrigerant with the flow valve of the indoor air conditioner (task air conditioner or ambient air conditioner) (S158).

  In addition, the air conditioning manager

After calculating the amount of system circulating refrigerant after control in step S151 and sending a control packet to the communication adapter of the outdoor unit (S151), the outdoor unit is controlled to control the motor speed of the outdoor unit compressor corresponding to the refrigerant flow rate. A control packet is transmitted (S152). When the communication adapter receives the control packet (S162), it converts it into a control command (S163), transmits the control command to the motor of the outdoor unit, and controls the rotational speed of the motor (S164).

  Similarly, the upper agent determines whether or not Tmin is lower than the lower limit value of the task temperature range and the lower limit value of the ambient temperature range (S144, S145), and if it is lower (S145), the trap packet (the IP of the exceeding agent) (Including the address) is transmitted to the management manager (S146). On the other hand, if it is within the setting range (S145), the process proceeds to the next step (S147).

  The air conditioning management manager that has received the trap (S150) sends a control packet (S151) to the corresponding communication adapter so that the temperature of the corresponding task area or ambient area falls within the management temperature range, and receives the control packet (S156). The communication adapter that has been converted into a control command (S157) for the air conditioner performs temperature control by controlling the refrigerant flow rate (S158) with the flow valve of the indoor air conditioner (task air conditioner or ambient air conditioner).

  In addition, the air conditioning manager

,

The system circulating refrigerant amount after control is calculated, and a control packet is transmitted to the communication adapter of the outdoor unit (S152), and the motor rotation speed of the compressor of the outdoor unit corresponding to the refrigerant flow rate is controlled. When the communication adapter receives the control packet (S162), it converts it into a control command (S163), transmits the control command to the motor of the outdoor unit, and controls the rotational speed of the motor (S164).

  The upper agent determines whether the Tave is within the upper limit value of the task area temperature range and the upper limit value of the ambient area temperature range (S147), and if it is outside (S148), the Trap packet (the IP address of the exceeding agent) Are transmitted to the air conditioning management manager (S149).

  The air conditioning management manager that received the trap (S153) sends a control packet to the communication adapter for the ambient air conditioner (S154), and the communication adapter converts the control command to the control command for the air conditioner (S160), and changes the refrigerant flow rate of the ambient air conditioner. Control (S161) to perform temperature control.

  Air conditioning management manager

Then, the system circulating refrigerant amount after control is calculated, and a control packet is transmitted to the outdoor unit (S155). When the communication adapter of the outdoor unit receives the control packet (S165), it converts it into a control command (S166), transmits the control command to the motor of the compressor of the outdoor unit, and sets the motor rotation speed of the compressor corresponding to the refrigerant flow rate. Control (S167).

  Next, the processing flow of the second step will be described with reference to FIG. First, the upper agent compares the temperature measurement value Tti of each task area and the temperature measurement value Tamb of the ambient area transmitted from each lower agent with the set value of each area, and the temperature difference (S170) is allowed. When exceeding the range (S171), Trap is transmitted to the air conditioning management manager (S172).

  The air-conditioning management manager that has received the Trap (S173) calculates the required heat load capacity for each task area and ambient area (S174), and obtains the sum.

  The air conditioning management manager transmits a control packet to each air conditioner in the task area and the ambient area (S175), and the communication adapter of each air conditioner that receives the control packet (S178) converts the control packet into a control command (S179). Each refrigerant flow valve is controlled (S180) to control its flow rate.

  Next, the air conditioning management manager transmits a control packet to the outdoor unit (S177), the communication adapter of the outdoor unit receives the control packet (S181), converts the control packet into a control command for the compressor motor (S182), and the outdoor unit. The motor speed of the compressor of the compressor is controlled (S183), and the entire refrigerant flow rate is controlled to control the air conditioning load.

  It is a figure which shows one model example of the application object of this air conditioning system.   It is a figure which shows the system configuration example of this air conditioning system.   It is a figure which shows the logic structure of this air conditioning system.   It is a conceptual diagram explaining the temperature control of this air conditioning system.   It is a figure which shows the whole air-conditioning control flow of this air-conditioning system.   It is a flowchart of the initial setting phase in air-conditioning control.   It is a flowchart of the set value determination phase in air-conditioning control.   It is a flowchart of the temperature control phase 1st step in air-conditioning control.   It is a flowchart of the temperature control phase 2nd step in air-conditioning control.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ambient air conditioner 2 Task air conditioner 3 Environment box with built-in agent, temperature sensor, humidity sensor, etc. 4 Outdoor unit 5 Refrigerant piping 6 Ambient area 7 Task area 10 Task air conditioner 11 Communication device (communication adapter)
12 Ambient air conditioner 13 Outdoor unit 14 Temperature sensor 15 Humidity sensor 16 Air conditioning management manager 17 Controller 18 Office LAN
19 IP network 20 Management site side LAN
21 Communication line connecting each air conditioner and communication device 22 Agent 23 Office side router 24 Office 25 where the air conditioning system is installed 25 Management site side router 26 Management site side of the air conditioning system 27 General management manager 30 Measurement of the air conditioning system System network 31 control system network 32 air conditioning management manager 33 SNMP manager 34 control software 35 upper agent 36 communication device 37 lower agent 38 air conditioner 40 task area temperature setting range 41 task area, ambient area setting upper limit temperature 42 task area Setting lower limit temperature 43 Ambient area setting lower limit temperature 44 Ambient area temperature setting range 45 Task area 46 Ambient area 47 Maximum temperature value of air conditioning management index 48 Minimum temperature value of air conditioning management index 50 Set by resident in task area 1 Management outside temperature 51 set temperature after the change task area 1

Claims (7)

An ambient air conditioner for air conditioning the entire room;
A task air conditioner for air conditioning a plurality of limited space areas;
In the case of the refrigerant method, an outdoor unit equipped with a compressor or a condenser, or a refrigerator or a boiler other than the refrigerant method,
An agent connected to sensors that measure the indoor environment, such as a temperature sensor, humidity sensor, and air pollution sensor;
A controller to set temperature, humidity, etc.
Air conditioning management that controls the ambient air conditioner, task air conditioner, outdoor unit, etc. by using the data such as temperature and humidity acquired through communication with the agent to control the temperature, humidity, etc. to the values set by the controller. A manager,
Equipped with a general management manager that controls and manages multiple air conditioning management managers.
An air conditioning system in which each air conditioner, outdoor unit, agent, controller, air conditioning management manager, and general management manager are connected via a LAN. The agent has a logical hierarchical structure;
In order to acquire measurement data from various sensors such as temperature, humidity, and air contamination and transmit it to the outside, a lower-level agent having a function of processing and transmitting TCP / IP packets;
Receives TCP / IP packets sent from multiple subordinate agents connected via LAN, retrieves data such as temperature and humidity, calculates the air conditioning control management index using the data such as temperature and humidity, and connects to LAN An upper agent having a function of transmitting to the air conditioning management manager,
An air conditioning system according to claim 1. The air conditioning management manager
A function to send and receive temperature, humidity setting values, etc. from the temperature controller
A function of transmitting and receiving measurement data such as temperature and humidity and setting values from a temperature controller via the LAN with the agent;
A function for calculating optimal control data for air-conditioning control;
A function of performing air conditioning control by transmitting and receiving control data to and from the ambient air conditioner, task air conditioner, outdoor unit or refrigerator, boiler, and the like;
An air conditioning system according to claim 1. The air conditioning management manager
When the number of people in the office increases or decreases due to organizational changes, etc.
Regarding the agent, task air conditioner, ambient air conditioner, outdoor unit or refrigerating machine, and equipment to be controlled and managed, such as a boiler,
By using the VLAN function or the like of the IP address set for each device, it has a function that can be easily set to change and add devices to be controlled and managed,
The air conditioning system according to claim 1. The agent, when determining the upper or lower logical structure, is determined by a value such as an IP address or a MAC address among a plurality of target agents,
The air conditioning system according to claim 2. The upper agent is
Uses own temperature and humidity data and temperature and humidity data collected from multiple subordinate agents to calculate the maximum, minimum, weighted sum, and weighted average of the collected data that is used as an index for air conditioning management And a function for comparing the management range such as temperature and humidity transmitted from the air conditioning management manager and recorded in its own management database with the index and notifying the air conditioning management manager of the contents when the range is out of range. Have
The air conditioning management manager that has received the notification
Control data is transmitted to a task area air conditioner, an ambient air conditioner, an outdoor unit, etc., and air conditioning control is performed so that the air conditioning management index is within a management range.
The air conditioning system according to claim 2. The subordinate agent is
Compares the measured temperature and humidity data with the set values of temperature and humidity sent from the air conditioning management manager and recorded in the management database. It has a function to notify the manager of the contents,
The air conditioning management manager that has received the notification
Control data is transmitted to a task area air conditioner, an ambient air conditioner, an outdoor unit, etc., and air conditioning is controlled so that the deviation falls within an allowable range.
The air conditioning system according to claim 2.

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