Building management system, building, and building management method

Abstract

To provide a building management device which can maintain a good environment in a management object area and enables reduction of a workload of a manager of the management object area despite having a simple structure, and to provide a building and a building management method.SOLUTION: A building 1 has a management object area 11 at an indoor space of a building body 10. In the management object area 11, management devices (a ventilation device 3 and an alarm unit 4) which may improve an environment for people in the room of the management object area are installed and a first slave unit 21 and a second slave unit 22 forming a building management device 2 are installed. The management object area 11 is an office. The building management device 2 comprises the first slave unit 21 and the second slave unit 22 and a master unit 23. The master unit 23 is disposed in a management room 12 located inside the building 2 and outside the management object area 11.SELECTED DRAWING: Figure 1

Description

【Technical Field】 【0001】 The present invention relates to a building management device, a building, and a building management method. Specifically, it relates to a device that can maintain a good environment in the management target area with a simple configuration and can reduce the workload of the administrator of the management target area. In this specification, the term "administrator" is used to include not only the direct person in charge of management but also the person responsible for the ultimate management responsibility of the building, such as the building owner and operator. 【Background Art】 【0002】 Conventionally, there has been an idea of remotely managing building facilities. As a device for performing such remote management, for example, a demand control unit as described in Patent Document 1 below has been proposed. The demand control unit is connected to a terminal device so as to be controllable, and includes a first slave unit that can receive a control signal of the terminal device generated outside the machine, a function of receiving an alert from a power demand monitoring device that is issued when the maximum demand power within a unit time approaches or reaches a set value, a function of generating a control signal for switching the terminal device to an operation in which the maximum demand power within a unit time does not exceed the set value according to the content of the received alert, and a function of transmitting the control signal to the first slave unit. 【0003】 According to the demand control unit described in Patent Document 1, an existing power demand monitoring device can be used as it is for installation. The first slave unit is connected to a terminal device installed in a building, and the control signal generated by the master unit and transmitted to the first slave unit is used to execute an operation so that the power consumption of the terminal device does not exceed the set value of the maximum demand power per unit time, and it is possible to prevent the occurrence of an operation situation in which the set value of the power demand is exceeded. 【Prior Art Documents】 【Patent Documents】 【0004】 【Patent Document 1】 Japanese Patent Publication No. 2015-213410 [Overview of the Initiative] [Problems that the invention aims to solve] 【0005】 By the way, in factories producing food, precision equipment, printing or textiles, as well as offices and educational facilities, reducing power consumption, which can lead to increased operating costs, is an important matter, but maintaining product quality and considering the working environment for workers are also crucial issues. 【0006】 For example, in a factory, even if cost reductions are achieved by controlling power consumption, if changes in temperature and humidity caused by the reduced operation of air conditioning equipment lead to product deterioration, it could result in product disposal, financial compensation to business partners, and damage to reputation, potentially leading to even greater losses. 【0007】 Furthermore, if air conditioning equipment is operated to cope with the recent abnormally high and low temperatures, it is predictable that operating conditions will inevitably exceed the set power demand. However, if the air conditioning equipment is shut down, resulting in excessively high or low temperatures inside the factory, or an increase in the concentration of harmful gases such as carbon dioxide, it will directly affect the health of factory workers, potentially leading to heatstroke, accidents due to decreased concentration, and a decline in work motivation. In the long term, an increase in employee turnover is also anticipated. The same applies to those working in offices and students attending classes at educational institutions. 【0008】 Furthermore, in order to prevent the environmental degradation described above, it is preferable to have facility managers at factories and other facilities. However, especially in small and medium-sized enterprises and facilities, there are problems such as a shortage of personnel and delays in the automation of management equipment. If detailed management is to be carried out to prevent environmental degradation, it will lead to an increased workload for the managers. 【0009】 This invention was conceived in view of the above points, and aims to provide a building management device, a building, and a building management method that, despite having a simple configuration, can maintain a good environment within the managed area and reduce the workload of the manager of the managed area. [Means for solving the problem] 【0010】 To achieve the above objectives, the building management device of the present invention comprises: a first slave unit installed in a managed area inside a building, having an observation function for observing environmental information such as temperature, humidity, airborne dust concentration, and hazardous gas concentration, or a combination thereof, in the managed area, and an observation information transmission function for converting the results observed by the observation function into a signal and transmitting it outside the device; a second slave unit installed in the managed area and connected to a management device installed in the managed area that can improve the hazardous environment in the managed area, having a control signal reception function and a control function for controlling the connected management device based on the received control signal; and a master unit having an observation data reception function for receiving observation data transmitted from the first slave unit, a control signal generation function for generating a control signal for the management device to be transmitted to the second slave unit based on the received observation data, and a control signal transmission function for automatically or manually transmitting the generated control signal. 【0011】 Here, the first slave unit, having the aforementioned observation function, can observe environmental information such as temperature, humidity, suspended dust concentration, and harmful gas concentration, or a combination thereof, within the installed management area. Furthermore, the first slave unit, having the aforementioned observation data transmission function, can convert the observed environmental information such as temperature within the management area into a signal and transmit it as observation data. 【0012】 The second slave unit can control connected management devices to improve hazardous environments within the managed area. The control of management devices by the second slave unit is performed based on control signals transmitted from the master unit and received by the receiving function. 【0013】 The "hazardous environment" to be improved here refers to an environment that is harmful to living organisms or objects present within the managed area. For example, "living organisms" include people and animals present within the managed area, while "objects" include products manufactured or stored within the managed area. Furthermore, the hazardous environment improved by the management equipment may affect both people and objects. For example, if products manufactured within the managed area require temperature and humidity control and release gases harmful to humans over time, a ventilation system can be a device that improves the hazardous environment for both people and objects. 【0014】 Examples of "hazardous environments" include environments within the controlled area that involve extremely high or low temperatures, humidity, suspended dust exceeding permissible limits, or various hazardous gases such as ammonia, or a combination thereof. Examples of "hazardous gases" include carbon dioxide, ammonia, carbon monoxide, nitrogen dioxide, hydrogen, methane, ethanol, propane, and butane, or a combination thereof. Examples of "management equipment" that can improve such environments include ventilation devices such as exhaust fans, blowers, air conditioners, dust collectors, generators of mist or ozone, sprayers or injectors for cleaning cleaning solutions or disinfectants for cleaning sources of hazardous gases, and pumps to control them. It should be noted that "hazardous environments" and "hazardous gases" are not limited to the examples above, and different hazardous environments and hazardous gases may exist depending on the organisms and objects present within the controlled area. In such cases, the equipment and facilities used to improve the hazardous environment are not limited to those described in the examples above and may be selected or installed as appropriate. 【0015】 The master unit, having the aforementioned observation data receiving function, can receive observation data from the first slave unit. This allows for the acquisition of environmental information such as temperature and harmful gas concentrations within the managed area. 【0016】 Furthermore, the master unit, having the aforementioned control signal generation function, can automatically or manually generate control signals for management equipment to be transmitted to the second slave unit based on the received observation data. Note that the generation of these control signals can be performed automatically or manually. This allows for the generation of control signals to improve environmental conditions such as temperature and harmful gas concentration within the managed area. Additionally, the master unit, having a control signal transmission function, can automatically or manually transmit the generated control signals. This allows the second slave unit to receive the control signals. 【0017】 Thus, the master unit has observation signal receiving function, control signal generation function, and control signal transmission function, so that it can receive signals related to environmental information received from the first slave unit, generate and transmit control signals related to environmental improvement within the managed area, and control the management equipment through the second slave unit. 【0018】 The master unit is designed to be spaced apart from the first and second slave units, and may be installed outside the managed area or building, or inside the managed area. If the master unit is installed outside the managed area (for example, in a control room outside the managed area or in a control building outside the building), and the managed area is a factory (an automated production line without workers) or a livestock barn, the manager can manage the managed area from a comfortable environment with air conditioning and no odors. In other words, the use of the building management device of the present invention contributes to improving the working environment for managers and can prevent health damage caused by the hazardous environment before improvement. 【0019】 Thus, the building management device of the present invention has a simple configuration comprising a first slave unit, a second slave unit, and a master unit, making installation easy and reducing procurement and installation costs. Furthermore, the building management device of the present invention can maintain a good environment within the managed area where the device is installed, even without the administrator being present in the managed area, thereby reducing the workload of the administrator. 【0020】 Furthermore, the building management system of the present invention can be easily applied to existing buildings and managed areas without major renovations. When applied to existing managed areas and existing management equipment can be utilized, the disposal of existing management equipment and the introduction of new equipment become unnecessary, thereby reducing construction costs and other expenses. This also reduces the economic burden on managers (including building owners) and the environmental impact associated with the disposal of existing management equipment. Naturally, the building management system of the present invention can also be applied to newly constructed buildings and managed areas. 【0021】 Furthermore, the aforementioned building management device may be configured such that the installation locations of the first and second slave units are within the managed area of ​​an educational facility or office, the observation function of the first slave unit targets one or a combination thereof of temperature, humidity, carbon dioxide concentration, ammonia concentration, carbon monoxide concentration, nitrogen dioxide concentration, hydrogen concentration, methane concentration, ethanol concentration, propane concentration, and butane concentration within the managed area, and the management equipment connected to the second slave unit is a ventilation device and / or an alarm. 【0022】 In this embodiment, first, the first slave unit observes the conditions (environmental information) such as temperature, humidity, and carbon dioxide concentration within the managed area (educational facility or office), converts it into a signal, and transmits it to the master unit as observation data. The master unit receives the observation data transmitted from the first slave unit using its observation data receiving function, and if the conditions within the managed area have reached levels of temperature, humidity, carbon dioxide concentration, etc., that are harmful to occupants (humans), it generates a control signal for the aforementioned management equipment based on the observation data using its control signal generation function, and transmits the said control signal to the second slave unit using its control signal transmission function. The second slave unit receives the control signal and can improve the environment by operating the ventilation device, which is a management equipment connected to it, to perform ventilation. 【0023】 Furthermore, the second slave device can operate the connected alarm by the above-described control signal received from the master device, notify the in-room person of the environmental deterioration, and raise an alert. Then, the alarm can prompt the in-room person who has learned of the alarm to contact the administrator or take additional measures such as opening the window for ventilation by the in-room person himself / herself. 【0024】 Note that the expression "the management device is a ventilation device and / or an alarm" used in this aspect includes both cases where the management device is both a ventilation device and an alarm and cases where the management device is only one of the ventilation device or the alarm. 【0025】 Thus, according to this building management device, even if the administrator does not stay in the educational facility or office which is the management target area, the environment within the management target area where the device is installed can be kept in good condition, the work burden of the administrator can be reduced, and it contributes to maintaining the health and comfort of the in-room person. 【0026】 In addition, in the above-described building management device, the installation locations of the first slave device and the second slave device are inside or near the refrigerated and frozen showcase in the food sales space, the observation function of the first slave device targets at least the temperature inside or near the refrigerated and frozen showcase, and the management device connected to the second slave device may be the temperature adjustment function unit and / or an alarm of the refrigerated and frozen showcase. 【0027】 In this embodiment, first, the first slave device observes the temperature situation (environmental information) inside or near the refrigerated and frozen showcase in the food sales space, converts it into a signal, and transmits it to the master device as observation data. The master device receives the observation data transmitted from the first slave device through the observation data receiving function. When the temperature situation inside or near the refrigerated and frozen showcase reaches a temperature situation harmful to the stored items, based on the observation data, the master device generates a control signal for the aforementioned management device through the control signal generation function, and transmits the control signal to the second slave device through the control signal transmission function. The second slave device receives the control signal and operates the temperature adjustment function unit of the refrigerated and frozen showcase, which is the management device connected thereto, to adjust the temperature, thereby improving the environment. 【0028】 Furthermore, the second slave device can operate the connected alarm by the aforementioned control signal received from the master device to notify the deterioration of the environment to the administrator (including the person in charge of the sales floor) and raise a warning. Then, the alarm can prompt the person in charge of the sales floor who has learned of the alarm to contact the administrator or take additional measures such as the person in charge of the sales floor and others to maintain the surrounding environment themselves. 【0029】 Note that the expression "food sales space" used in this embodiment is used in the sense of including not only the retail store that deals only with food but also the food sales area of general retail stores that deal with daily sundries such as convenience stores, department stores, and general supermarkets. Also, the expression "being the temperature adjustment function unit and / or the alarm" used in this embodiment means both cases where the management device is both the temperature adjustment function unit and the alarm and cases where the management device is only either the temperature adjustment function unit or the alarm. Furthermore, the expression "targeting at least the temperature inside or near the refrigerated and frozen showcase" used in this embodiment means, as will be described later, that it is not intended to exclude anything other than the temperature as the observation target of the observation function of the first slave device. 【0030】 Thus, with this building management device, even if the manager does not have to be present inside or near the refrigerated / frozen display cases in the food sales space which is the managed area, the environment within the managed area where the device is installed can be maintained in good condition. This reduces the workload of the manager (including the sales floor staff) and contributes to maintaining the quality of products stored in the refrigerated / frozen display cases. 【0031】 Furthermore, the aforementioned building management device may be configured such that the observation function of the first slave unit further targets one or a combination thereof of humidity, carbon dioxide concentration, ammonia concentration, carbon monoxide concentration, nitrogen dioxide concentration, hydrogen concentration, methane concentration, ethanol concentration, propane concentration, and butane concentration inside or near the refrigerated display case, and the management device further connected to the second slave unit is a ventilation device. 【0032】 In this embodiment, first, the first slave unit observes the temperature inside or near the refrigerated / frozen display case in the food sales space, as well as other conditions (environmental information), converts them into signals, and transmits them to the master unit as observation data. The master unit receives the observation data transmitted from the first slave unit using its observation data receiving function, and if the inside or near the refrigerated / frozen display case has reached a state where, in addition to the aforementioned temperature, conditions such as humidity are harmful to the stored items, it generates a control signal for the aforementioned management equipment based on the observation data using its control signal generation function, and transmits the said control signal to the second slave unit using its control signal transmission function. The second slave unit receives the control signal and can improve the environment by operating the ventilation device, which is a management equipment connected to it, to adjust the temperature. 【0033】 Furthermore, if the temperature inside or near the refrigerated / frozen display case reaches a level harmful to the stored items, the temperature control function may also be activated simultaneously. In addition, if the humidity or other conditions inside or near the refrigerated / frozen display case reach a level harmful to the stored items, the second slave unit can activate the connected alarm to notify the manager (including the sales floor staff) of the deterioration of the environment and issue a warning. The alarm then prompts the sales floor staff, upon learning of the alarm, to contact the manager or to take additional measures such as improving the environment through ventilation. 【0034】 Thus, with this building management device, even if the manager does not have to be present inside or near the refrigerated / frozen display cases in the food sales space which is the managed area, the environment within the managed area where the device is installed can be maintained in a better condition, reducing the workload of the manager (including the sales floor staff) and contributing to the maintenance of the quality of products stored in the refrigerated / frozen display cases. 【0035】 Furthermore, the aforementioned building management device may be configured such that the installation locations of the first and second slave units are within the managed area of ​​the factory, the observation function of the first slave unit targets at least the humidity of the managed area, and the management device connected to the second slave unit is a dehumidifier and / or an alarm. 【0036】 In this embodiment, first, the first slave unit observes the humidity conditions (environmental information) in the managed area of ​​the factory, converts it into a signal, and transmits it to the master unit as observation data. In this embodiment, "factory" refers to, for example, a food, precision equipment, printing, or textile factory that requires special humidity control, but is not limited to these, and may also refer to factories producing other products. In this embodiment, "managed area" refers to, for example, an area where objects requiring humidity control exist, such as a material warehouse, a room where a production line is installed, or a storage room for finished products, but does not exclude other areas such as a management room or employee break room from a welfare perspective. 【0037】 The master unit receives observation data transmitted from the first slave unit using its observation data reception function. When the humidity in the managed area reaches a level harmful to the objects to be managed, it generates a control signal for the aforementioned management equipment based on the observation data using its control signal generation function, and transmits this control signal to the second slave unit using its control signal transmission function. The second slave unit receives the control signal and can improve the environment by operating the dehumidifier, which is a management device connected to it, to adjust the humidity. 【0038】 Furthermore, the second slave unit can activate the connected alarm based on the aforementioned control signal received from the master unit, thereby notifying administrators and occupants of the managed area (e.g., factory workers) of environmental deterioration and issuing a warning. The alarm then prompts occupants of the managed area who become aware of the alarm to contact the administrator or take additional measures themselves, such as opening windows for ventilation. 【0039】 Furthermore, the expression "dehumidifier and / or alarm" used in this embodiment includes both cases: when the management device is both a dehumidifier and an alarm, and when the management device is either a dehumidifier or an alarm, but not both. Also, the expression "targeting at least the humidity of the area to be managed" used in this embodiment does not mean that anything other than humidity is excluded as an observation target for the observation function of the first slave unit, as will be explained later. 【0040】 Thus, with this building management device, even if the manager does not have to be present in the factory, the environment within the managed area where the device is installed can be maintained in good condition, reducing the workload of the manager and contributing to maintaining the quality of the finished products manufactured in the factory. 【0041】 Furthermore, the aforementioned building management device may also be configured such that the observation function of the first slave unit further targets one or a combination thereof of the temperature, carbon dioxide concentration, ammonia concentration, carbon monoxide concentration, nitrogen dioxide concentration, hydrogen concentration, methane concentration, ethanol concentration, propane concentration, and butane concentration of the managed area, and the management device further connected to the second slave unit is a ventilation device. 【0042】 In this embodiment, the first slave unit first observes humidity in the managed area of ​​the factory, as well as other conditions (environmental information), converts them into signals, and transmits them to the master unit as observation data. In this embodiment, the "managed area" is also a room where a production line is installed, and the further targets of the observation function of the first slave unit may be collectively referred to as "temperature, carbon dioxide concentration, etc." 【0043】 The master unit receives observation data transmitted from the first slave unit using its observation data reception function. If the managed area reaches conditions such as humidity, temperature, or carbon dioxide concentration that are harmful to the objects to be managed or to the occupants, it generates a control signal for the aforementioned management equipment based on the observation data using its control signal generation function, and transmits this control signal to the second slave unit using its control signal transmission function. The second slave unit receives the control signal and can improve the environment by operating the ventilation device, which is a management equipment connected to it, to adjust the temperature, carbon dioxide concentration, etc. 【0044】 Furthermore, if the temperature, carbon dioxide concentration, or other conditions become harmful to the objects under management or to the occupants, the ventilation system may also be activated simultaneously. In addition, the second slave unit can activate the connected alarm when the temperature, carbon dioxide concentration, or other conditions become harmful to the objects under management or to the occupants, thereby notifying the administrator and occupants of the managed area of ​​the deterioration and issuing a warning. The alarm can then prompt occupants of the managed area to contact the administrator or take additional measures such as improving the environment through ventilation. 【0045】 Thus, with this building management device, even if the manager does not have to be present in the factory, the environment within the managed area where the device is installed can be maintained in a better condition, reducing the workload of the manager, and contributing to maintaining the quality of finished products manufactured in the factory and the health of workers and other occupants within the managed area. 【0046】 Furthermore, the aforementioned building management device may also be configured such that the master unit has a threshold memory function capable of storing threshold values ​​related to the input environmental information, and the control signal generation function compares the threshold value with the observation data received from the first slave unit, and automatically generates and transmits control signals to both or either of the management devices connected to the second slave unit when the numerical value related to the observation data approaches or exceeds the threshold value. In this configuration, both or either of the environmental improvement work performed within the managed area and the warning notification (or alert) to occupants can be automated, thereby further reducing the workload of the manager and further improving the accuracy of environmental management within the managed area. 【0047】 More specifically, by having the aforementioned threshold memory function, the master unit can be given the ability to store threshold values ​​related to the input environmental information. The control signal generation function then compares the observation data received from the first slave unit with the threshold values ​​input to and stored in the threshold memory function, and when the numerical value based on the observation data approaches or exceeds the threshold, it can automatically generate and transmit control signals to both or either of the management devices connected to the second slave unit. 【0048】 In other words, even without the administrator constantly monitoring the environment within the managed area, the automated master unit compares the received observation data with thresholds to make control decisions for the management equipment, and one or both of the two or more management devices (equipment capable of improving harmful environments, such as ventilation fans, or alarms) connected to the second slave unit are activated. 【0049】 As a result, if at least one of the management devices is operational, a warning will be issued regarding environmental improvement or deterioration within the managed area. If both management devices are operational, both environmental improvement and warnings regarding deterioration will be issued. Depending on the managed area, this can reduce the burden on administrators to monitor and control decisions day and night. This reduction in burden also makes it possible to manage the managed area from outside the office, such as while on business trips or vacations, contributing to improved working conditions for administrators, such as improved working environment and the ability to take vacations. In addition, immediate response from the master unit ensures that the environment within the managed area is always maintained in good condition. 【0050】 The "threshold" refers to a numerical value of temperature, humidity, airborne dust concentration, or hazardous gas concentration that may cause health damage to persons in the controlled area, or a numerical value of temperature, humidity, airborne dust concentration, or hazardous gas concentration that may affect the objects controlled in the controlled area. Furthermore, the input "threshold" is a numerical value related to at least one of temperature, humidity, airborne dust concentration, and hazardous gas concentration, and may be a numerical value related to two or more of the above. 【0051】 Furthermore, the aforementioned building management device may also be configured such that the master unit further has a signal data storage function that stores either or both of the received observation data and the generated control signals. In this configuration, the administrator can directly or indirectly perceive the records of observation data and control signals stored by the master unit. This allows the administrator to understand or grasp the history of environmental changes within the managed area and the actions taken in response, which can be used to determine whether further action is necessary and to improve knowledge for the future operation and management of the managed area. 【0052】 Furthermore, "directly from the master unit" and "perceived" refer to methods such as reading digitized observation data and control signals via a monitor or similar device on the master unit. Additionally, "indirectly from the master unit" and "perceived" refer to methods such as reading digitized observation data and control signals via a monitor or similar device on a personal computer (hereinafter referred to as "PC") connected to the master unit, or via the display screen of an external information terminal connected via a server or internet connection to the master unit. 【0053】 Furthermore, the aforementioned building management device may also have a master unit connected to an internet line and further having an internet transmission function capable of transmitting either or both of the observation data and / or control signals stored in the signal data storage function to an external information and communication terminal. In this configuration, the administrator can obtain information about the managed area through the information and communication terminal even when away from the building or the managed area within the building. 【0054】 More specifically, administrators can learn about environmental changes within the managed area by obtaining information from observation data stored in the signal data storage function. In addition, by obtaining information from control signals stored in the signal data storage function, administrators can view the history of control signals received by an external information communication terminal and learn about the operational history of management equipment that improved the environmental changes within the managed area. 【0055】 Furthermore, the aforementioned building management device may also have a master unit that further has an internet reception function, and a control signal generation function that generates control signals for management devices based on requests received from an external information communication terminal via the internet reception function. In this configuration, even when the administrator is away from the managed area, they can send requests to the master unit via an information communication terminal and manually control the management devices within the managed area to improve the environment within the managed area. 【0056】 To achieve the above objectives, the present invention comprises: a building body having a controlled area indoors and equipped with management equipment capable of improving the environment for people and / or objects present in the controlled area; a first slave unit installed in the controlled area having an observation function for observing environmental information such as temperature, humidity, airborne dust concentration, or harmful gas concentration, or a combination thereof, in the controlled area, and an observation data transmission function for transmitting signals based on the results observed by the observation function; and a second slave unit installed in the controlled area and connected to the management equipment, having a control signal receiving function and a control function for controlling the connected management equipment based on the received control signals. 【0057】 The expression "person and / or thing" used in the building of this invention means that it includes both the case where it is a person and a thing, and the case where it is either a person or a thing alone. 【0058】 Here, the building can observe environmental information such as temperature, humidity, suspended dust concentration, and hazardous gas concentration, or a combination thereof, within the indoor controlled area, thanks to the observation function of the first slave unit. Furthermore, the first slave unit can convert the observed environmental information, such as temperature within the controlled area, into a signal and transmit it as observation data, thanks to the observation data transmission function described above. 【0059】 The second slave unit can control connected management devices to improve hazardous environments within the managed area. The control of management devices by the second slave unit is performed based on control signals transmitted from the master unit and received by the receiving function. 【0060】 The master unit, which is connected to the first and second slave units by wired or wireless means, may be installed outside the building (outdoors), but this does not exclude installation within the managed area or inside a building outside the managed area. This master unit has at least an observation data receiving function to receive observation data transmitted from the first slave unit, a control signal generation function to generate control signals for management equipment to be transmitted to the second slave unit based on the received observation data, and a control signal transmission function to transmit the generated control signals automatically or manually. 【0061】 The master unit, having the aforementioned observation data receiving function, can receive observation data from the first slave unit and obtain environmental information such as temperature and harmful gas concentration within the managed area. Furthermore, the master unit, having the aforementioned control signal generation function, can generate control signals for the management equipment to be transmitted to the second slave unit based on the received observation data. These control signals are intended to improve the environment, such as temperature and harmful gas concentration, within the managed area using the management device. Moreover, the master unit, having the aforementioned control signal transmission function, can transmit the generated control signals automatically or manually, and the second slave unit can receive these control signals. 【0062】 Thus, the building of the present invention has a simple configuration comprising a building body, a first slave unit, and a second slave unit, making installation easy and reducing the cost of procuring and installing the equipment. Furthermore, the building of the present invention can maintain a good environment within the managed area even without the manager being present in the managed area, thereby reducing the manager's workload. In addition, if the master unit of the building of the present invention is installed outside the managed area, and the managed area is a factory or livestock barn, the manager can manage the managed area from a comfortable environment with air conditioning and free from odors. In other words, the use of the building of the present invention contributes to improving the working environment for managers and can prevent health damage caused by the hazardous environment before improvement. 【0063】 To achieve the above objectives, the present invention provides a building management method comprising: a first slave unit installed in a managed area of ​​a building; a second slave unit installed in the managed area and connected to a management device capable of improving the harmful environment for people and / or objects present in the managed area; and a master unit located inside or outside the managed area, wherein the first slave unit observes environmental information of the managed area, including temperature, humidity, airborne dust concentration, or harmful gas concentration, or a combination thereof, and transmits the observed results as observation data; a second step in which the master unit receives the observation data transmitted from the first slave unit, generates a control signal for the management device to be transmitted to the second slave unit based on the received observation data, and transmits the generated control signal automatically or manually; and a third step in which the second slave unit receives the control signal and controls the connected management device based on the received control signal. 【0064】 In the building management method of the present invention, the expression "person and / or thing" includes both cases: when it refers to both a person and a thing, and when it refers to either a person or a thing alone. Furthermore, the expressions "hazardous environment," "hazardous gas," and "management equipment" are as described above, so their explanation will be omitted. 【0065】 Here, by providing the first step described above, the first slave unit installed in the building can observe environmental information such as temperature, humidity, airborne dust concentration, or harmful gas concentration in the area to be managed within the building, or a combination thereof, and transmit the observed results as observation data by converting them into signals. 【0066】 Furthermore, by incorporating the aforementioned second step, a master unit located within or outside the managed area can receive observation data transmitted from the first slave unit, generate control signals for the management equipment based on the received observation data, and automatically or manually transmit the generated control signals to the second slave unit. 【0067】 Furthermore, by incorporating the aforementioned third step, the second slave unit installed in the managed area can control the connected management device based on the received control signal, and use the functions of the management device to improve the harmful environment for people and / or objects in the managed area. 【0068】 In the building management method of the present invention, the master unit can be positioned separately from the first and second slave units, and the master unit may be installed outside the managed area or building, or inside the managed area. Furthermore, if the master unit is installed outside the managed area (for example, in a management room outside the managed area or in a management building outside the building), and the managed area is a factory (an automated production line without workers) or a livestock barn, the manager can manage the managed area from a comfortable environment with air conditioning and free from odors. In other words, the building management method of the present invention contributes to improving the working environment for managers and can also prevent health damage caused by the hazardous environment before improvement. 【0069】 Furthermore, the building management method of the present invention has a simple configuration consisting of a first slave unit, a second slave unit, and a master unit, making installation easy and reducing the procurement and installation costs of the equipment. In addition, the building management method of the present invention can maintain a good environment within the managed area without the manager being present in the managed area, thereby reducing the workload of the manager. 【0070】 Furthermore, the building management method of the present invention can be easily applied to existing buildings and managed areas without major renovations. When applied to existing managed areas and existing management equipment can be utilized, it eliminates the need to dispose of existing equipment or introduce new equipment, thereby reducing construction costs and other expenses. This also reduces the economic burden on managers (including building owners) and the environmental impact associated with the disposal of existing equipment. Naturally, the building management method of the present invention can also be applied to newly constructed buildings and managed areas. [Effects of the Invention] 【0071】 According to the building management device, building, and building management method of the present invention, it is possible to maintain a good environment within the managed area with a simple configuration, and to reduce the workload of the manager of the managed area. [Brief explanation of the drawing] 【0072】 [Figure 1] This is an explanatory diagram showing a building management method including the configuration of a building, a building management device, and a communication path according to the first embodiment of the present invention. [Figure 2] Figure 1 shows the components of the building management system, where (a) is a schematic diagram of the structure of the first slave unit, (b) is a schematic diagram of the structure of the second slave unit, and (c) is a schematic diagram of the structure of the master unit. [Figure 3] This is an explanatory diagram showing a building management method including the configuration of a building, a building management device, and a communication path according to Modification 1 of the present invention. [Figure 4] This is an explanatory diagram showing a building management method including the configuration of a building, a building management device, and a communication path according to a second embodiment of the present invention. [Figure 5] This is an explanatory diagram showing a building management method including the configuration of a building, a building management device, and a communication path according to a third embodiment of the present invention. [Modes for carrying out the invention] 【0073】 The embodiments of the present invention will be described in more detail with reference to Figures 1 to 5. The following description will be in the order of [First Embodiment], [Modification 1], [Second Embodiment], and [Third Embodiment]. Reference numerals in each figure are used to reduce complexity and facilitate understanding, and in the case of multiple equivalent parts that share the same reference numeral, only some of them may be given reference numerals. 【0074】 [First Embodiment] [Building 1 and Building Management System 2] Refer to Figures 1 and 2. Building 1 has a managed area 11 inside the building body 10, and management equipment capable of improving the environment for people in the managed area is installed in the managed area 11, and a first slave unit 21 (1 unit) and a second slave unit 22 (2 units) which constitute the building management device 2 are installed. In this embodiment, the managed area 11 is an office (hereinafter referred to as office 11 in the description of this embodiment), and the management equipment is a ventilation device 3 and an alarm (patrol lamp) 4. In this embodiment, the building management device 2 is composed of the first slave unit 21 and the second slave unit 22 mentioned above, and a master unit 23, and the master unit 23 is located in a management room 12 which is inside building 2 but outside office 11. The parts of building 1 and building management device 2 will be described in detail below. 【0075】 (Building 1) Building 1 (main building 10) has an office 11 and a control room 12 inside. Office 11 has a first slave unit 21, a second slave unit 22, a ventilation device 3, and an alarm 4 installed in designated locations. Control room 12 has a master unit 23 installed. 【0076】 (Building management device 2) The building management device 2 consists of a first slave unit 21, a second slave unit 22, and a master unit 23. 【0077】 (First slave unit 21) The first sub-unit 21 is installed in the office 11 at a location suitable for observing environmental information (see Figure 1). In this embodiment, the target of observation is the harmful environment for occupants in the office 11, and in particular, observation of carbon dioxide concentration is considered important. Therefore, the installation location of the first sub-unit 21 is preferably a location where carbon dioxide concentration is measured to be high after taking preliminary measurements at multiple locations in the room, and is as far away as possible from doors, windows, air inlets, air conditioning outlets, etc. (to avoid the influence of outside air), at least 50 cm away from occupants' seats, etc. (to avoid the direct influence of exhaled breath), at a height of 75 to 150 cm above the floor, and away from indoor combustion equipment (stoves, stoves, etc.). 【0078】 Refer to Figure 2(a). The first slave unit 21 has an observation function unit 211, an observation data transmission function unit 212, a power supply unit (not shown), a serial port 213, and a Bluetooth (registered trademark; hereinafter omitted) communication unit 214 within its casing. In this embodiment shown in Figure 1, one first slave unit 21 is installed, but this is not the only configuration. For example, if the office 11 is large or if more detailed observation is required, two or more first slave units may be added. 【0079】 The observation function unit 211 has the function of observing environmental information within the office 11. In this embodiment, the observation function unit 211 has a temperature and humidity sensor, an airborne dust concentration sensor, a carbon dioxide concentration sensor, and a multi-channel gas sensor, and the multi-channel gas sensor is one that can measure ammonia concentration, carbon monoxide concentration, nitrogen dioxide concentration, hydrogen concentration, methane concentration, ethanol concentration, propane concentration, and butane concentration. 【0080】 The observation data transmission unit 212 has the function of converting the results observed by the observation function unit 211 into a signal and transmitting it. In this embodiment, the communication standard for data transmission is Zigbee (registered trademark; hereinafter omitted), but it is not limited to this, and may be Bluetooth, UWB (Ultra Wide Band), etc. 【0081】 The power supply unit supplies power to operate the components of the first slave unit 21, such as the observation function unit 211 and the observation data transmission function unit 212. In this embodiment, the power supply unit has a structure that incorporates a battery or the like, but it is not limited to this, and may also have a structure in which power is input from an external source via, for example, an AC adapter and power cord. 【0082】 The serial port 213 and the Bluetooth communication unit 214 are components that constitute part of the observation function unit 211. The serial port 213 is connected to the observation function unit 211 via a wired connection, and the Bluetooth communication unit 214 is connected to the observation function unit 211 via a wireless connection. The serial port 213 can be connected to external observation devices, and external observation devices having Bluetooth communication functionality 214 can be connected to receive observation information from such external observation devices. Examples of "external observation devices" include thermometers and hygrometers in the office 11, and include both existing and newly installed devices. In this embodiment, a serial port 213 and a Bluetooth communication unit 214 are provided, but this is not the only option. For example, the port may use a standard other than serial, or the communication unit may use a standard other than Bluetooth, and the number of ports and communication units may be two or more. 【0083】 (Second handset 22) The second slave unit 22 is installed in the office 11 with one unit connected to the ventilation fan 3 and the other unit connected to the alarm 4 (see Figure 1). 【0084】 Refer to Figure 2(b). The second slave unit 22 has a receiving function unit 221, a control function unit 222, an analog connection port 223, an HDMI (registered trademark; hereinafter omitted) connection port 224, and a power supply unit (not shown) within its casing. 【0085】 In this embodiment shown in Figure 1, two second slave units 22 are installed, but this is not limited to this configuration. For example, the number of second slave units may be increased or decreased depending on the number of management devices to be connected, or multiple management devices may be connected to a single second slave unit if the distance between the installed management devices is short. Furthermore, in this embodiment, an analog connection port 223 and an HDMI connection port 224 are provided, but this is not limited to this configuration. For example, the ports may be digital connection methods or standards other than HDMI, and the number of ports may be two or more. 【0086】 The receiving function unit 221 has the function of receiving control signals generated and transmitted by the master unit 23. In this embodiment, the control signals received by the receiving function unit 221 are control signals for the ventilation device 3 and the alarm device 4, but are not limited to these. For example, it may also have the function of receiving control signals for control devices that can improve harmful environments for people and objects, such as control signals for an ozone generator. In this embodiment, the communication standard for the receivable control signals is Zigbee, but is not limited to this. For example, it may be Bluetooth, UWB, etc. 【0087】 The control function unit 222 is connected to the ventilation device 3 and alarm device 4 via an analog connection port 223 and an HDMI connection port 224, either by wired or wireless means, and has the function of controlling the ventilation device 3 and alarm device 4 based on the control signals received by the receiving function unit 221. 【0088】 The power supply unit provides power to operate the components of the second slave unit 22, such as the receiving function unit 221 and the control function unit 222. In this embodiment, the power supply unit has a structure that incorporates a battery or the like, but it is not limited to this, and may also have a structure in which power is input from an external source via, for example, an AC adapter and power cord. 【0089】 The analog connection port 223 is the connection point to the ventilation device 3 and the alarm 4, and control signals can be transmitted to each device through it. In this embodiment, the ventilation device 3 is a ventilation fan. In this embodiment, the alarm 4 gives a warning with light, but it is not limited to this, and may give a warning with sound, text, etc. 【0090】 The HDMI connection port 224 can be connected to a monitor or other device. For example, it can be connected to a monitor to display the observation data received via the master unit, allowing occupants in office 11 to visually check the observation data of the surrounding environment. The HDMI connection port 224 can also be connected to a monitor-type alarm system that has warning display functions. 【0091】 (Main unit 23) Refer to Figure 2(c). The master unit 23 has, within its casing, an observation data receiving function unit 231, a control signal generation function unit 232, a control signal transmission function unit 233, a threshold memory function unit 234, a signal data storage function unit 235, an internet line connection unit 236, an internet transmission function unit 237, an internet reception function unit 238, and a power supply unit (not shown). 【0092】 The observation data receiving function unit 231 has the function of receiving observation data transmitted from the first slave unit 21. 【0093】 The control signal generation function unit 232 compares the observation data received from the first slave unit 21 with a threshold value stored in the threshold memory function unit 234 (described later), and has the function of automatically generating a control signal to control the ventilation device 3 and the alarm device 4 when the numerical value related to the observation data approaches (or exceeds) the aforementioned threshold value. The control signal generation function unit 232 also has the function of generating the aforementioned control signal based on a request received from an external information communication terminal via the internet reception function unit 238. 【0094】 The control signal transmission function unit 233 has the function of receiving the generated control signal and automatically transmitting the said control signal to the second slave unit 22. 【0095】 The threshold memory function unit 234 has the function of storing threshold values ​​related to the input environmental information. In this embodiment, the input threshold values ​​are at least numerical values ​​for temperature, humidity, carbon dioxide concentration, suspended dust concentration, ammonia concentration, carbon monoxide concentration, nitrogen dioxide concentration, hydrogen concentration, methane concentration, ethanol concentration, propane concentration, and butane concentration that may cause harm to human health, but are not limited to these. The administrator can set the type and threshold values ​​as appropriate, as long as they can be detected by sensors or the like. 【0096】 The signal data storage unit 235 has the function of storing both the observation data received by the master unit 23 and the control signals generated by the master unit 23. 【0097】 The internet connection unit 236 is connected to the internet transmission function unit 237 and the internet reception function unit 238, and is a port portion that enables communication with the outside world via the internet. The internet transmission function unit 237 has the function of transmitting both observation data and control signals stored in the signal data storage function unit 235 to an external information communication terminal. The internet reception function unit 238 has the function of receiving requests from an external information communication terminal and sending them to the control signal transmission function unit 233. 【0098】 The power supply unit provides power to operate the components of the master unit 23, such as the observation data receiving function unit 231 and the control signal generation function unit 232. In this embodiment, the power supply unit is powered externally via an AC adapter cord, but it is not limited to this, and may have a built-in battery or the like. 【0099】 In this embodiment, signal transmission between the first slave unit 21 and the master unit 23, and between the second slave unit 22 and the master unit 23, is wireless, but this does not exclude wired transmission. 【0100】 [Operation of buildings and building management systems, building management methods] The operation of Building 1 and Building Management Device 2, as well as the building management method, will be explained with reference to Figures 1 and 2. 【0101】 The building management method comprises at least the following steps 1, 2, and 3. Specifically, (1) In the first step, the first slave unit 21 installed in office 11 observes environmental information such as temperature, humidity, airborne dust concentration and harmful gas concentration inside office 11, converts the observed results into signals and transmits them as observation data. (2) In the second step, the master unit 23 located in the control room 12 receives the observation data transmitted from the first slave unit 21, and based on the received observation data, generates control signals for the ventilation device 3 and alarm 4 to be transmitted to the second slave unit 22, and transmits them automatically (manually is also possible). (3) In the third step, the second slave unit 22 receives a control signal and controls the connected ventilation device 3 and alarm 4 based on the received control signal, operating the ventilation device 3 to ventilate the office 11 and alerting occupants of the deteriorating environment with the alarm 4. 【0102】 The operation of Building 1 and Building Management System 2 will be explained. The first slave unit 21 uses its observation function unit 211 to observe environmental information such as temperature, humidity, airborne dust concentration, and harmful gas concentration inside the office 11. The first slave unit 21 then uses its observation data transmission function unit 212 to convert the observed environmental information inside the office 11 into signals and transmit them as observation data. 【0103】 Furthermore, the observation data transmission function unit 212 of the first slave unit 21 uses the Zigbee communication standard for data transmission. This allows for relay functionality to be provided to the terminal, enabling information transmission through repeated relaying between Zigbee elements. Due to its low power consumption, it can operate for extended periods on battery power and build a wireless network. Additionally, the serial port 213 and Bluetooth communication unit 214 of the first slave unit 21 can connect to external observation devices via the serial port 213 or to external observation devices with Bluetooth communication capabilities, allowing for the reception of observation information from these external observation devices, thus offering high expandability. 【0104】 The master unit 23 receives observation data from the first slave unit 21 using the observation data receiving function unit 231. This allows it to obtain environmental information such as temperature inside the office 11. The master unit 23 then compares the observation data received from the first slave unit 21 with the threshold stored in the threshold storage function unit 234 using the control signal generation function unit 232. When the numerical value related to the observation data approaches the aforementioned threshold (including when it exceeds it; in other words, when the managed area reaches a state of temperature, humidity, carbon dioxide concentration, etc. that is harmful to occupants (humans)), the master unit 23 automatically generates a control signal to control the ventilation device 3 and alarm device 4. 【0105】 Furthermore, at the administrator's discretion, control signals for controlling the ventilation device 3 and alarm 4 can be manually generated. The control signal generation function unit 232 may also generate the aforementioned control signals based on requests from the administrator received via the internet reception function unit 238 from external information communication terminals such as a personal computer D1 or smartphone D2. 【0106】 The master unit 23 receives the control signal generated by the control signal generation function unit 232 to the control signal transmission function unit 233, and automatically transmits the control signal to the second slave unit 22 (manual transmission is also possible). 【0107】 The master unit 23 stores threshold values ​​for environmental information that are suitable for the human body, either at the time of shipment of the master unit 23 or after purchase by an administrator, etc., using the threshold memory function unit 234. This allows for the automation of generating control signals to the ventilation device 3 and alarm device 4 by comparing observed data with the threshold values, in cooperation with the control signal generation function of the aforementioned control signal generation function unit 232. 【0108】 The master unit 23 stores both the observation data received by the master unit 23 and the control signals generated by the master unit 23 (including both automatic and manual) using the signal data storage function unit 235. The master unit 23 is connected to the outside world via the internet connection unit 236, and the internet transmission function unit 23 transmits both the observation data and control signals stored in the signal data storage function unit 235 to the PC D1 and smartphone D2. The internet reception function unit 238 receives requests from the PC D1 and smartphone D2 and sends them to the control signal transmission function unit 233. 【0109】 As a result, the administrator can perceive the observation data and control signal records stored by the master unit 23 either directly through a monitor or other device connected to the master unit 23, or indirectly by accessing the master unit 23 or the server D3 where the data from the signal data storage function unit 235 is recorded, and using a personal computer D1 or smartphone D2. 【0110】 The master unit 23 then receives signals related to environmental information from the first slave unit 21, generates and transmits control signals related to improving the environment of the office 11, and controls the ventilation device 3 and alarm 4 through the second slave unit 22. 【0111】 When the first slave unit 21 detects an increase in the concentration of various harmful gases or the room temperature (a harmful environment for human health in the office 11), the second slave unit 22 controls the operation of the connected ventilation system 3 and alarm 4 based on the control signal received from the master unit 23. As a result, the atmosphere inside the office 11 is improved to a comfortable temperature and other conditions for the occupants. 【0112】 The second slave unit 22, specifically the receiving function unit 221, receives the control signals generated and transmitted by the master unit 23. Since the receiving function unit 221 uses the Zigbee communication standard for data transmission, it is equipped with a relay function, and information can be transmitted by Zigbee elements communicating with each other through repeated relaying. Because of its low power consumption, it can operate for extended periods on battery power and can also build a wireless network. 【0113】 The second slave unit 22 is connected to the ventilation device 3 and alarm device 4 by the control function unit 222, and controls the ventilation device 3 and alarm device 4 based on the control signals received by the receiving function unit 221. The control signals are transmitted to the ventilation device 3 and alarm device 4 via the analog connection port 223. 【0114】 Furthermore, the HDMI connection port 224 can be connected to a monitor or other device. For example, it can be connected to a monitor to display the observation data received via the master unit, allowing occupants in office 11 to visually check the surrounding environment. Additionally, the HDMI connection port 224 can be connected to the alarm 4, allowing occupants in office 11 to visually obtain environmental information. This can prompt occupants to contact the administrator upon learning of the alarm, or to take additional measures such as opening windows for ventilation. 【0115】 In this way, even when the administrator is not in office 11 (or is away from office 11), they can use a PC D1 or smartphone D2 to obtain information on observation data stored in the master unit 23 and learn about changes in the office environment. 【0116】 Similarly, the administrator can use a personal computer D1 or smartphone D2 to view the history of control signals stored in the master unit 23, and learn the operating history of the ventilation system 3 and alarm 4 that improved the environmental changes in office 11. Then, by viewing the aforementioned observation data and control signals stored in the signal data storage function unit 235, the administrator can understand or grasp the history of environmental changes in office 11 and the measures taken to address them, which can be used to determine whether further measures are necessary and as knowledge for future livestock barn management. 【0117】 Furthermore, because signal transmission between the first slave unit 21 and the master unit 23, and between the second slave unit 22 and the master unit 23 is wireless, wiring within the office 11 is unnecessary, reducing the effort required during installation. In addition, since no wiring is visible within the office 11 after installation, it has a clean appearance. 【0118】 Thus, in a building 1 equipped with the building management device 2, the first slave unit 21, the second slave unit 22, and the master unit 23 work together to maintain a good environment within the office 11 and reduce the workload of the administrator. 【0119】 The building management device 2 has a simple configuration consisting of a first slave unit 21, a second slave unit 22, and a master unit 23, making installation in building 1 easy and reducing the procurement and installation costs of the device. Furthermore, while the building management device 2 is naturally applicable to newly constructed buildings 1, it can also be easily applied to existing buildings 1 without major renovations. When the building management device 2 is applied to an existing building and existing management equipment can be utilized, the disposal of existing management equipment and the introduction of new equipment become unnecessary, which can reduce construction costs and lessen the financial burden on managers (including building owners). In addition, if the existing management equipment is a precision device from a specialized manufacturer, it can be used, allowing the observation function unit 211 of the first slave unit 21 to be simplified by using a less expensive component with fewer observation functions, or even by omitting the component altogether, thereby lowering the unit price of the product. 【0120】 Furthermore, with Building 1 equipped with the building management device 2, the administrator does not need to constantly monitor the environment of the managed area (office) 11. The master unit 23 compares observed data with thresholds and automatically makes control decisions for the ventilation device 3 and alarm 4, activating them to improve the environment within the managed area, office 11. This reduces the burden of monitoring and control decisions by the administrator day and night, and also makes it possible to manage office 11 from outside the office, such as while on business trips or vacations. As a result, it can contribute to improving the working environment for administrators and improving working conditions such as taking vacations, and the environment of office 11 can be kept good at all times through the immediate response by the master unit 23. In other words, Building 1 (office 11) can automate tasks that are currently done manually and quantify management items that rely on experience and intuition by monitoring, recording, and monitoring various environmental values. 【0121】 [Variation 1] Building 1a is another embodiment (modification 1) of Building 1 and the managed area 11 shown in Figure 1, and modification 1 will be described with reference to Figure 3. 【0122】 Building 1a is an educational facility, and within the building body 10, there is a classroom (hereinafter referred to as classroom 11a in this modified example) and a control room 12, which are the managed area 11a. A first slave unit 21, a second slave unit 22, a ventilation device 3, and an alarm 4 are installed in designated locations in classroom 11a, and a master unit 23 is installed in the control room 12. 【0123】 In building 1a, the building management system 2 (first slave unit 21, second slave unit 22, master unit 23) is the same as in office 11 of the first embodiment, and the management equipment (ventilation device 3 and alarm 4) is also the same, so the explanation of the structure and effects of the common parts will be omitted. 【0124】 In building 1a, which is equipped with the building management device 2, the first slave unit 21, the second slave unit 22, and the master unit 23 work together to maintain a good environment for students and teachers in the classroom 11a, thereby reducing the workload of the administrator. 【0125】 [Second Embodiment] Refer to Figure 4. Building 1b is a food sales space such as a supermarket, and has a refrigerated and frozen display case (hereinafter referred to as the refrigerated and frozen display case 11b in this embodiment) and a control room 12 inside the main building 10, which are the managed area 11b. 【0126】 The refrigerated and frozen display case 11b has a first slave unit 21b, second slave units 22 and 22b, a ventilation device 3, and an alarm 4 installed nearby, while the master unit 23b is installed in the control room 12. In other words, the building management device 2 in this embodiment consists of two first slave units 21b, two second slave units 22, two second slave units 22b, and a master unit 23b. 【0127】 Since the structure and effects of the first slave unit 21b are generally the same as those of the first slave unit 21 in the first embodiment, the explanation of the common structure and effects will be omitted, and the differences in structure and effects will be described later. Similarly, since the structure and effects of the second slave unit 22b and the master unit 23b are generally the same as those of the second slave unit 22 and the master unit 23 in the first embodiment, the explanation of the common structure and effects will be omitted, and the differences in structure and effects will be described later. 【0128】 The first slave unit 21b has an observation function unit 211 that has the function of observing the temperature inside or near the refrigerated display case 11b, and observes the temperature conditions (environmental information) inside or near the refrigerated display case 11b, converts it into a signal, and transmits it to the master unit 23b as observation data. In addition, the first slave unit 21b also has an observation function unit 211 that has the function of observing humidity, carbon dioxide concentration, ammonia concentration, carbon monoxide concentration, nitrogen dioxide concentration, hydrogen concentration, methane concentration, ethanol concentration, propane concentration, and butane concentration inside or near the refrigerated display case 11b. As a result, it also observes conditions other than temperature (environmental information) inside or near the refrigerated display case 11b, converts them into signals, and transmits them to the master unit 23b as observation data. 【0129】 The master unit 23b receives observation data transmitted from the first slave unit 21b via the observation data receiving function unit 231. When the temperature inside or near the refrigerated / frozen display case 11b reaches a level harmful to the stored items (refrigerated / frozen goods), the control signal generation function unit 233 generates a control signal for the temperature control function unit (not shown and not labeled; the same applies hereinafter) of the refrigerated / frozen display case 11b, which is one of the management devices, based on the observation data. The control signal transmission function 233 then transmits the said control signal to the second slave unit 22b, which is connected to the temperature control function unit of the refrigerated / frozen display case 11b. 【0130】 Furthermore, the master unit 23b receives observation data other than temperature (such as the ammonia concentration mentioned above) from the first slave unit 21b. If the inside or vicinity of the refrigerated / frozen display case 11b has reached an environment harmful to the stored items or an environment that is unpleasant or harmful to shoppers or others staying in the vicinity, the control signal generation function unit 233 generates control signals for the ventilation device 3 and alarm 4 based on the observation data and transmits these control signals to the second slave unit 22. 【0131】 The second slave unit 22 has a control device connected to it which is a ventilation device 3 and an alarm 4, and the second slave unit 22b has a control device connected to it which is the temperature control function unit of the refrigerated / frozen display case 11b. 【0132】 The second slave unit 22b receives a control signal and activates the temperature control function unit of the refrigerated / frozen display case 11b, which is a management device connected to it, thereby adjusting the temperature inside the refrigerated / frozen display case 11b and improving the storage environment for the stored items. 【0133】 The second slave unit 22 receives a control signal and activates the ventilation device 3, thereby improving the environment inside and around the refrigerated / frozen display case 11b by diffusing or diluting unpleasant ammonia odors or other harmful gases (and, in some cases, adjusting the temperature of the refrigerated / frozen display case 11b) for shoppers and others staying in the vicinity. 【0134】 Furthermore, the second slave unit 22 can activate the alarm 4 based on the aforementioned control signal received from the master unit 23b, thereby notifying the manager (including the sales floor staff) of the environmental deterioration and issuing a warning. The alarm 4 can then prompt the sales floor staff, upon learning of the alarm, to contact the manager or take additional measures themselves, such as adjusting the temperature and improving the surrounding environment. 【0135】 Thus, with building 1b, the environment inside and around the refrigerated / frozen display case 11b can be maintained in good condition even without the manager being present near the refrigerated / frozen display case 11b, reducing the workload of the manager (including the sales floor staff), and contributing to maintaining the quality of the goods stored inside the refrigerated / frozen display case 11b, such as the products for sale. 【0136】 [Third Embodiment] Refer to Figure 5. Building 1c is a precision equipment assembly plant, and inside the main building 10 it has a production line room (hereinafter referred to as the production line room 11c in this embodiment) and a control room 12, which are the managed area 11c. 【0137】 The production line room 11c is equipped with a first slave unit 21c, second slave units 22 and 22c, a ventilation device 3, an alarm 4, and a dehumidifier 5, while the control room 12 is equipped with a master unit 23c. In other words, the building management device 2 in this embodiment consists of one first slave unit 21c, two second slave units 22, one second slave unit 22c, and a master unit 23c. 【0138】 Since the structure and effects of the first slave unit 21c are generally the same as those of the first slave unit 21 in the first embodiment, the explanation of the common structure and effects will be omitted, and the differences in structure and effects will be described later. Similarly, since the structure and effects of the second slave unit 22c and the master unit 23c are generally the same as those of the second slave unit 22 and the master unit 23 in the first embodiment, the explanation of the common structure and effects will be omitted, and the differences in structure and effects will be described later. 【0139】 The first slave unit 21c has an observation function unit 211 that has the function of observing the humidity inside the production line room 11c, observing the humidity conditions (environmental information) inside the production line room 11c, converting it into a signal, and transmitting it to the master unit 23c as observation data. In addition, the first slave unit 21c also has an observation function unit 211 that has the function of observing the temperature, carbon dioxide concentration, ammonia concentration, carbon monoxide concentration, nitrogen dioxide concentration, hydrogen concentration, methane concentration, ethanol concentration, propane concentration, and butane concentration inside the production line room 11c. As a result, it also observes conditions other than humidity (environmental information) inside the production line room 11c, converts them into signals, and transmits them to the master unit 23c as observation data. 【0140】 The master unit 23c receives observation data transmitted from the first slave unit 21c via the observation data receiving function unit 231. When the humidity inside the production line room 11c reaches a level harmful to the manufactured goods (objects to be managed), the control signal generation function unit 233 generates a control signal for the dehumidifier 5, which is one of the management devices, based on the observation data. The control signal transmission function 233 then transmits this control signal to the second slave unit 22c, which is connected to the dehumidifier 5. 【0141】 Furthermore, the master unit 23c receives observation data other than humidity (such as the aforementioned temperature and carbon dioxide concentration) from the first slave unit 21c. If the environment inside the production line room 11c has become harmful to the manufactured goods or uncomfortable or harmful to the occupants inside the production line room 11c, the control signal generation function unit 233 generates control signals for the ventilation device 3 and alarm 4 based on the observation data and transmits these control signals to the second slave unit 22. 【0142】 The second slave unit 22 is connected to a ventilation device 3 and an alarm 4, and the second slave unit 22c is connected to a dehumidifier 5. The second slave unit 22c receives a control signal and operates the dehumidifier 5, which is the control device connected to it, thereby adjusting the humidity in the production line room 11c and improving the environment for manufactured goods. 【0143】 The second slave unit 22 receives a control signal and activates the ventilation device 3, thereby improving the environment inside the production line room 11c by diffusing or diluting unpleasant odors or harmful gases such as carbon dioxide (and, in some cases, adjusting the temperature of the production line room 11c). 【0144】 Furthermore, the second slave unit 22 can activate the alarm 4 based on the aforementioned control signal received from the master unit 23c, thereby notifying the administrator (including those present in the production line room 11c) of the environmental deterioration and issuing a warning. The alarm 4 can then prompt those present in the production line room 11c who become aware of the alarm to contact the administrator or take additional measures themselves, such as adjusting the humidity and improving the surrounding environment. 【0145】 Thus, with building 1c, even if the manager does not stay in the production line room 11c, the environment inside the production line room 11c can be maintained in good condition, reducing the workload of the manager (including those present in the production line room 11c), and contributing to maintaining the quality of finished products manufactured in the precision equipment factory and the health of workers and other persons present in the production line room 11c. 【0146】 In this embodiment, the production line room 11c is given as the area to be managed, but it is not limited to this. For example, areas where moisture needs to be managed, such as material warehouses and finished product storage areas, can be used. In addition, from the perspective of employee welfare, management rooms, employee break rooms, etc., are not excluded. 【0147】 The terms and expressions used in this specification and claims are for illustrative purposes only and are not limiting in any way, and there is no intention to exclude features described herein and in claims, or any equivalent terms or expressions. Furthermore, it goes without saying that various modifications are possible within the scope of the technical concept of the present invention. Also, terms such as "first," "second," etc., do not imply rank or importance, but are used to distinguish one element from others. [Explanation of Symbols] 【0148】 1, 1a, 1b, 1c Building 10. Main building 11. Managed Area (Office) 11a Managed Area (Classroom) 11b Managed area (refrigerated / frozen display case) 11c Managed area (production line room) 12 Management room 2. Building management system 21, 21b, 21c First slave unit 211 Observation Function Unit 212 Observation data transmission function unit 213 Serial Ports 214 Bluetooth Communication Department 22, 22b, 22c Second slave unit 221 Receiving function unit 222 Control Function Unit 223 Analog Connection Ports 224 HDMI connection ports 23, 23b, 23c Main Unit 231 Observation data receiving function unit 232 Control signal generation function unit 233 Control signal transmission function unit 234 Threshold memory function unit 235 Signal data storage function unit 236 Internet connection section 237 Internet transmission function unit 238 Internet reception function unit 3. Ventilation system 4 alarm 5 Dehumidifier D1 PC D2 Smartphone D3 Server

Claims

[Claim 1] A first slave unit is installed in a controlled area inside a building and has an observation function for observing environmental information such as temperature, humidity, airborne dust concentration, or harmful gas concentration, or a combination thereof, in the controlled area, and an observation information transmission function for converting the results observed by the observation function into a signal and transmitting it outside the unit. A second slave unit is installed in the area under management and connected to a management device installed in the area under management that is capable of improving the hazardous environment in the area under management, and has a control function for receiving control signals and a control function for controlling the connected management device based on the received control signals. A master unit having an observation data receiving function for receiving observation data transmitted from the first slave unit, a control signal generation function for generating control signals for the management equipment to be transmitted to the second slave unit based on the received observation data, a control signal transmission function for automatically or manually transmitting the generated control signals, and a threshold memory function capable of storing threshold values ​​related to the input environmental information, wherein the control signal generation function is configured to automatically generate and transmit control signals for both or either of the management equipment connected to the second slave unit when the numerical value related to the observation data approaches or exceeds the threshold value, by comparing the threshold value with the observation data received from the first slave unit. Equipped with Building management system. [Claim 2] The installation locations of the first and second sub-units are within the managed area of ​​an educational facility or office, The observation function of the first sub-unit targets one or a combination thereof of temperature, humidity, carbon dioxide concentration, ammonia concentration, carbon monoxide concentration, nitrogen dioxide concentration, hydrogen concentration, methane concentration, ethanol concentration, propane concentration, and butane concentration within the controlled area. The management device connected to the second slave unit is a ventilation device and / or an alarm. The building management device according to claim 1. [Claim 3] The installation locations of the first and second sub-units are inside or near a refrigerated / freezer display case in a food sales space, The observation function of the first slave unit targets at least the temperature inside or near the refrigerated / freezer display case, The management device connected to the second slave unit is the temperature control function unit and / or alarm of the refrigerated / freezer display case. The building management device according to claim 1. [Claim 4] The observation function of the first sub-unit further targets one or a combination thereof of humidity, carbon dioxide concentration, ammonia concentration, carbon monoxide concentration, nitrogen dioxide concentration, hydrogen concentration, methane concentration, ethanol concentration, propane concentration, and butane concentration inside or near the refrigerated display case. The management device further connected to the second slave unit is a ventilation device. The building management device according to claim 3. [Claim 5] The installation locations of the first and second slave units are within the controlled area of ​​the factory, The observation function of the first slave unit targets at least the humidity of the area to be managed, The management device connected to the second slave unit is a dehumidifier and / or an alarm. The building management device according to claim 1. [Claim 6] The observation function of the first sub-unit further targets one or a combination thereof of the temperature, carbon dioxide concentration, ammonia concentration, carbon monoxide concentration, nitrogen dioxide concentration, hydrogen concentration, methane concentration, ethanol concentration, propane concentration, and butane concentration of the controlled area. The management device further connected to the second slave unit is a ventilation device. The building management device according to claim 5. [Claim 7] The master unit further has a signal data storage function that stores either or both of the received observation data and the generated control signals. A building management device according to any one of claims 1 to 6. [Claim 8] The master unit is connected to an internet line and further has an internet transmission function capable of transmitting either or both of the observation data and the control signals stored in the signal data storage function to an external information communication terminal. The building management device according to claim 7. [Claim 9] The master unit further has an internet receiving function, and the control signal generation function generates control signals for the management device based on a request received from an external information communication terminal via the internet receiving function. The building management device according to claim 8. [Claim 10] A building body having a managed area indoors, and equipped with management equipment capable of improving the environment for people and / or objects present in the managed area, A first slave unit installed in the area under control has an observation function for observing environmental information such as temperature, humidity, airborne dust concentration, or harmful gas concentration, or a combination thereof, in the area under control, and an observation data transmission function for transmitting the results observed by the observation function as a signal. A second slave unit is installed in the area under management and connected to the management device, and has a control function for receiving control signals and for controlling the connected management device based on the received control signals. Equipped with, The first and second slave units are connected by wired or wireless means to a master unit installed indoors or outdoors of the building. The master unit has an observation data receiving function that receives observation data transmitted from the first slave unit, a control signal generation function that generates control signals for the management equipment to be transmitted to the second slave unit based on the received observation data, a control signal transmission function that automatically or manually transmits the generated control signals, and a threshold memory function that can store threshold values ​​related to the input environmental information. The control signal generation function is configured to compare the threshold value with the observation data received from the first slave unit, and to automatically generate and transmit control signals for both or either of the management equipment connected to the second slave unit when the numerical value related to the observation data approaches or exceeds the threshold value. building. [Claim 11] Using a first slave unit installed in a managed area of ​​a building, a second slave unit installed in the managed area and connected to a management device installed in the managed area and capable of improving the harmful environment to people and / or objects present in the managed area, The first step involves the first slave unit observing environmental information such as temperature, humidity, airborne dust concentration, or harmful gas concentration of the managed area, or a combination thereof, and converting the observed results into a signal and transmitting it as observation data. The master unit receives observation data transmitted from the first slave unit, generates a control signal for a management device to be transmitted to the second slave unit based on the received observation data, and transmits the generated control signal automatically or manually in a second step. The third step is that the second slave unit receives a control signal and controls the connected management device based on the received control signal, Equipped with, In the second step, when generating the control signal, the master unit compares a threshold value related to the environmental information stored based on its functions with the observation data received from the first slave unit. When the numerical value related to the observation data approaches or exceeds the threshold value, the master unit automatically generates and transmits control signals to both or either of the management devices connected to the second slave unit. Building management methods.

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