JP2021055969A - Central monitoring device for air conditioning facility and method of displaying state of air conditioning facility - Google Patents

Abstract

To provide a central monitoring device for air conditioning facilities and a method of displaying a state of air conditioning facilities such that the state of the air conditioning facilities can be easily grasped.SOLUTION: There is provided a center monitoring device 1 for air conditioning facilities that is connected communicably to heat transfer-side equipment 2 and heat use-side equipment 3 through a controller, the center monitoring device 1 comprising: acquisition means 8 which acquires output value information 12 from the controller, current value information 13 on a controlled object, and set value information 14 on the controlled object; conversion means 9 which converts the acquired information into display elements based upon previously registered conversion conditions; and display means 10 which displays display elements of the heat transfer-side equipment and heat use-side equipment side by side as one group on the same screen of a display part.SELECTED DRAWING: Figure 1

Description

The present invention relates to a central monitoring device for air conditioning equipment and a method for displaying the status of air conditioning equipment. More specifically, the present invention relates to a central monitoring device for air conditioning equipment in a multipurpose intelligence building, an office building, a general residential building, a factory, etc., and a method for displaying the status of the air conditioning equipment.

In air-conditioning equipment of a certain scale or larger, an inverter-controlled variable flow pump is used for the equipment that conveys heat media such as water and air, and heat is taken out from the heat medium to air-condition the object such as a room. In order to perform this, the heat utilization side equipment is equipped with an electric two-way valve, air-conditioning device (VAV), etc. so that heat can be variably taken out, and a variable flow rate / air-conditioning system is adopted according to the load fluctuation of the target heat load. It is common to measure energy saving by doing so.

In addition, in such a system of a certain scale or larger, a central monitoring system is constructed, and air conditioning equipment and the like are collectively managed and monitored. The management operator monitors the operating status of the heat source equipment and the air conditioning equipment on the secondary side based on the information such as the status and measured values of the air conditioning equipment displayed on the display of the central monitoring device.

In the information processing apparatus of Patent Document 1, a circular figure is displayed on the screen of the display, and the quantity is expressed by making the diameter of the circular figure proportional to the quantity. Further, it is disclosed that two circular figures are concentrically superposed to display a quantitative expression diagram and an increase / decrease tendency expression diagram, which are two different analysis results, in a contrasting manner.

Further, in the variable air supply amount control confirmation device of Patent Document 2, the type of control status is displayed in different colors. For example, the display area during cooling (insufficient capacity) and heating (insufficient capacity) is set as red, and the display area during cooling (satisfied) and heating (satisfied) is set as blue, during cooling (energy saving) and heating (energy saving). The display area (which can save energy) is displayed as green, the stopped display area is displayed as black, and the fully opened display area is displayed as white in a standard rectangular frame.

Further, in the air conditioning monitoring control system of Patent Document 3, color data of the air conditioning target area is registered in advance for each predetermined deviation temperature range between the set room temperature and the current room temperature. This system retrieves color data that includes shades that represent "hot" when the current room temperature is higher than the set temperature, and colors that include shades that represent "cold" when the current room temperature is lower than the set temperature. The data is taken out and the corresponding air-conditioned area on the air-conditioned area screen is displayed in color on the air-conditioned area screen. Furthermore, in order to instantly and visually recognize the air conditioning control status, a symbol mark mark is displayed on the air conditioning area screen to image the relationship between the opening range (%) of the VAV unit and the movable angle of the air volume adjustment plate in the VAV unit. It is disclosed to do.

Japanese Patent No. 3463010 Japanese Patent No. 4668824 Japanese Patent No. 5032452

Conventionally, a heat transfer side device that conveys a heat medium such as water or air and a heat utilization side device that extracts heat from the heat medium and uses the heat medium are controlled independently of each other. Even in the variable flow rate / variable air volume system that is often used as an energy saving method, control of the heat transfer side equipment (pump that transports heat media such as water) (rotation speed control by the inverter of the pump motor) and heat utilization side equipment ( Control of the coil flow rate of the heat exchanger inside the air conditioner, the air volume of the air conditioner supply air, etc. (flow rate control in which the coil flow rate is performed by the electric two-way valve of the air conditioner, control of the internal damper opening of the air changer (VAV), etc.) , Controlled independently of each other. The heat transfer side equipment is installed in the heat source machine room such as a refrigerator and other machine rooms, and the heat utilization side equipment is installed near the target for heat exchange with the air of the target (room) to be air-conditioned. The fact that they are separated from each other and that the control targets such as the temperature of the heat medium and the temperature of the air are different are also factors that are independently controlled.

Then, in each device, the control output value (frequency of the inverter of the pump motor, valve opening, etc.) of the control device (pump, electric two-way valve, etc.) that controls the transfer / transportation of the heat medium is the control result. With (for example, pressure / room temperature), the heat transport side equipment and the heat utilization side equipment may be limited to each and displayed together by the central monitoring device, but the heat transport side equipment and the heat utilization side equipment may be displayed together. It was not displayed together by fusing with. For this reason, it was difficult to determine the status of the equipment on the transport side and the equipment on the user side in an integrated manner. Further, in general, it is difficult to read the situation because the control panel of the central monitoring device and the like display numerical values.

Furthermore, in central monitoring equipment in buildings and factories, the number of points for monitoring and recording the operation of operators such as heat transport side equipment and heat utilization side equipment of air conditioning equipment pursues more comfortable and more precise air conditioning. Therefore, it tends to be enormous, and the amount of data for recording and monitoring tends to increase. These data are entered and displayed in the central monitoring facility as control points for the building, but are used for building energy management systems (BEMS) or operational status analysis when initial costs are incurred, but are usually It is used for the operation of the construction staff according to the display of the central monitoring equipment, but it was extremely difficult to operate by referring to the above numerical display. Even if you try to use it, it is difficult to display them all together on a display or the like so that they can be easily grasped because the data is enormous.

On the other hand, in the operation management of air conditioning equipment in buildings and factories, it is important to check the suitability of thermal energy usage on a daily basis in the current social situation where _{further energy saving and CO 2 saving are required.} is there.

Therefore, it is an object of the present invention to provide a central monitoring device for air conditioning equipment and a method for displaying the status of air conditioning equipment, which can easily grasp the status of air conditioning equipment.

(1) The central monitoring device 1 of the air conditioning equipment of the present invention extracts heat from the heat transfer side devices 2, 2a and 2b for transporting the heat media 4 and 4a and the heat media 4 and 4a for air conditioning the target. A central monitoring device 1 that is communicably connected to the heat utilization side devices 3 and 3a and 3b to be used via the heat transfer side devices and the heat utilization side devices controllers 7a and 7b, respectively. Output value information 12 including the current value of the flow controller output of the control output values 12, 12a, 12b of the heat utilization side device and the heat medium of the heat utilization side device, and the current value indicating the flow controller output of the heat transfer side devices 2, 2a, 2b. , 12a, 12b, current value information 13a, 13b of the thermometer for measuring the temperature of the target, the temperature set value of the target, the maximum pressure set value for transporting the heat medium, and the flow rate of the heat medium of the heat utilization device. The acquisition means 8 for acquiring the set value information 14a and 14b including the maximum output of the actuator and the maximum output of the flow controller of the heat transfer medium, and the information acquired by the acquisition means 8 are obtained based on the conversion conditions registered in advance. The heat is arranged on the same screen 40 of the display unit 11 and the conversion means 9 for converting into the display elements 24 and 25 so that it can be seen as a geometrical aggregate along the path through which the heat medium actually transported is circulated. The transfer side devices 2, 2a and 2b and the heat utilization side devices 3, 3a and 3b are arranged on the display unit, and the display elements 25 of the heat transfer side devices 2, 2a and 2b and the heat utilization side devices 3, 3a, It is characterized in that it is composed of a display means 10 for displaying the display elements 24 of 3b as a set.

The "output value information" includes not only the output values of the controllers 7a and 7b, but also the frequency 12a of the inverter 5a, which is a flow rate controller, and the ratio of the opening degree 12b of the electric two-way valve 5b to each maximum value. It is a concept that includes the amount that can be converted into.
The "current value information" is a concept including the current values 13a and 13b of the controlled object and values that can be converted into the current values 13a and 13b.
"Set value information" is a concept including a set value to be controlled and a value that can be converted into the set value.
In the embodiment, step S1 of FIG. 6 corresponds to the “acquisition means”.
In the embodiment, step S3 of FIG. 6 corresponds to the “conversion means”.
In the embodiment, the “display means” corresponds to step S4 in FIG.

(2) In such a central monitoring device 1, each of the display elements 24 and 25 is arranged on the outer periphery of the inner figures 24b and 25b and the inner figures 24b and 25b, and the outer peripheral lines 24a and 25a having a fixed shape are arranged. And the background colors 24c and 25c arranged between the inner figures 24b and 25b and the outer peripheral lines 24a and 25. By converting to the figures 24b and 25b and switching the air conditioning of the target to either cooling or heating, the heat utilization side devices 3, 3a and 3b have a warm color on the cooling side, a cold color on the heating side, and a heat transfer side. In the devices 2, 2a and 2b, it is preferable to convert the background colors 24c and 25c to the same colors as the inner figures 24b and 25b of the heat utilization side devices 3, 3a and 3b on both the cooling side and the heating side.

(3) Further, in the conversion means 9, the set value information 14a and 14b and the current value information 13a and 13b are at room temperature, and the difference between the current value information 13a and 13b and the set value information 14a and 14b is predetermined. When it is within the range, it is converted into an outer line 24a of a color indicating that the current value (room temperature) is appropriate, and the difference between the current value information 13a and 13b and the set value information 14a and 14b is equal to or greater than a predetermined value. When it is negative, it is converted into an outer line 24a of a color indicating that the current value (room temperature) is too low, and when the difference between the current value information 13a and 13b and the set value information 14a and 14b is positive or more than a predetermined value. Is preferably converted to an outer line 24a of a color indicating that the current value (room temperature) is too high. Further, it is preferable to convert the difference between the current value information 13a and 13b and the set value information 14a and 14b into the outer peripheral lines 24a and 25a of the color based on the difference.

(4) Further, in the heat transport side devices 2, 2a and 2b, when the background color inside the outer peripheral line 25a is within a predetermined range in the difference between the current value information 13a and 13b and the set value information 14a and 14b. It is a color of a color system opposite to the color of the outer peripheral line 25a of the above, and in the heat utilization side devices 3, 3a, 3b, the color of the inner figure 24b is the current value information 13a, 13b and the set value information 14a, 14b. The color is the same as the color of the outer peripheral line 24a when the difference is within a predetermined range, so that when the control state of the air conditioning equipment is good, the number of colors of the same system is increased on the screen 40. Is preferable.

(5) Further, in the heat transport side devices 2, 2a and 2b, when the background color inside the outer peripheral line 25a exceeds a predetermined range in the difference between the current value information 13a and 13b and the set value information 14a and 14b. The color of the inner figure 24b in the devices 3, 3a, 3b on the heat utilization side is the same as the color of the outer peripheral line 25a of the above, and the current value information 13a, 13b and the set value information 14a, 14b. The color is the opposite of the color of the outer peripheral line 24a when the difference between the two is within a predetermined range, and when the control state of the air conditioning equipment is insufficient, the color of the outer peripheral lines 25a and 24a and the inside thereof. It is preferable that the color difference between the two is noticeable.

(6) The display means 10 displays the display elements 24 of the heat utilization side devices 3, 3a and 3b connected to a common vertical pipe of a building such as a building vertically side by side on the screen 40 of the display unit 11. It is preferable to do so.

(7) The display means 10 displays the display elements 24 of the heat utilization side devices 3, 3a and 3b installed on the same floor of a building such as a building on the side of the screen 40 with respect to the screen 40 of the display unit 11. It is preferable to display them side by side in the direction.

(8) In the method of displaying the status of the air conditioning equipment of the present invention, heat is taken out from the heat transporting side devices 2 and 2a and 2b for transporting the heat medium 4 and the heat medium 4 is used to balance the target with air. It is a method of displaying the status of the air conditioning equipment including the heat utilization side devices 3, 3a and 3b on the display unit 11, and the control output values 12a, 12b or the flow rate for adjusting the amount of transporting or using the heat medium 4. Current value information 13a, 13b including the current value of a thermometer that displays the inner figures 24b and 25b in a size corresponding to the current value of the controller output and measures the temperature of the controlled object on the outer periphery of the inner figures 24b and 25b. Between the outer peripheral lines 24a and 25a colored based on the magnitude of the difference between the set value information 14a and 14b including the temperature set value of the controlled object and the inner figures 24b and 25b and the outer peripheral lines 24a and 25a. When the air conditioning of the target is switched to either cooling or heating, the heat-utilizing side devices 3, 3a and 3b are warm-colored on the cooling side, the heating side is cold-colored, and the heat-conveying side devices 2, 2a and 2b are cooled. It is characterized in that the background colors 24c and 25c, which are colored in the same color as the figures 24b and 25b of the heat utilization side devices 3, 3a and 3b, are displayed on both the side and the heating side.

(9) In such a method of displaying the status of the air conditioning equipment, the difference between the current value of the target temperature controlled by the control device 5 and the target temperature set value is defined on the outer periphery of the inner figures 24b and 25b. When it is within the range of, the outer peripheral lines 24a and 25a of colors indicating that the room temperature is appropriate are displayed, and the difference between the current values 13a and 13b of the target temperature and the target temperature set values 14a and 14b is When it is negative above a predetermined value, the outer lines 24a and 25a of colors indicating that the room temperature is too low are displayed, and the difference between the current values 13a and 13b of the target temperature and the target temperature set values 14a and 14b is displayed. When the value is positive above a predetermined value, it is preferable to display the outer peripheral line 24a of a color indicating that the room temperature is too high.

(10) Further, in the heat transport side devices 2, 2a and 2b, the outer peripheral line 24a when the difference between the current values 13a and 13b of the target temperature and the target temperature set values 14a and 14b is within a predetermined range. The color of the above and the background color of the inside of the outer peripheral line 24a are displayed in the same color, and the current values 13a and 13b of the target temperature and the target temperature set value 14a are displayed in the devices 3, 3a and 3b on the heat utilization side. When the difference from 14b is within a predetermined range, the colors of the outer peripheral lines 24a and 25 and the color of the inner figure are displayed in the same system of colors, and when the control state of the air conditioning equipment is good, the screen is displayed. It is preferable that the colors of the same system are increased.

(11) Further, in the heat transport side devices 2, 2a and 2b, the color of the outer peripheral lines 24a and 25a is determined by the difference between the current values 13a and 13b of the target temperature and the target temperature set values 14a and 14b. The color of the outer peripheral line when the range is exceeded is displayed in a color system opposite to the internal background color of the outer peripheral lines 24a and 25a, and in the heat utilization side devices 3, 3a and 3b, the inner figures 24b and 25b are displayed. The color is displayed in a color system opposite to the color of the outer peripheral lines 24a and 25a when the difference between the current values 13a and 13b of the target temperature and the target temperature set values 14a and 14b is within a predetermined range. Therefore, when the control state of the air conditioning equipment is insufficient, it is preferable that the difference between the colors of the outer peripheral lines 24a and 25a and the background color inside the outer lines 24a and 25a is conspicuous.

(1) The central monitoring device of the air conditioning equipment of the present invention displays each display element of the heat transfer side device and the heat utilization side device as a set on the same screen of the display unit of the central monitoring device, and thus controls each other. It is easy to judge whether the result of is appropriate. For example, when the mutual control settings and the set values are changed, it is easy to grasp the status of whether or not the result is possible. Further, when either the control on the heat transfer side or the control on the heat utilization side is insufficient, it is possible to simply grasp which one has the problem. Furthermore, when the amount of heat used on the heat utilization side is small, it is immediately known that the heat transfer side is generating wasteful energy, which leads to energy saving. In addition, after the current value of the target room temperature deviates significantly from the set value, such as when the outside air suddenly enters the room, it is necessary to confirm in real time how the current value of the target room temperature gradually converges toward the set value. The efficiency of monitoring is improved.

(2), (8) In such a central monitoring device, each of the display elements is an inner figure, an outer peripheral line arranged on the outer periphery of the inner figure and the shape is fixed, and the inner figure and the outer figure. The conversion means converts the output value information into an internal figure having a size corresponding to the information, and switches the air conditioning of the target to either cooling or heating. Therefore, when converting the background color to a warm color on the cooling side on the heat utilization side device, a cold color on the heating side, and the same color as the internal figure of the heat utilization side device on both the cooling side and the heating side in the heat transfer side device. Furthermore, it can be easily determined whether the result of mutual control is appropriate. In addition, the background color, which is easily contrasted with the internal figure that converts the output value, further condenses the information necessary for grasping the operating status into each display element and displays it in parallel, so the equipment on the heat utilization side to be monitored can be monitored. Even if there are many, the overall tendency can be grasped.

(3), (9) Further, when the difference between the current value information of the temperature and the set value information of the temperature is within a predetermined range, the conversion means has a color indicating that the current value is appropriate. When the difference between the current temperature information and the set temperature information is negative, the current value is converted to an outer line of a color indicating that the current value is too low, and the temperature is converted to an outer line. When the difference between the current value information and the temperature setting value information is positive above the specified value, when converting to a color outline indicating that the current value is too high, the management of the operating status of the system can be visually grasped. It will be easier to do.

(4), (10) Further, in the heat transfer side device, the background color inside the outer peripheral line is opposite to the color of the outer peripheral line when the difference between the current value information and the set value information is within a predetermined range. It is a color of the color system, and the color of the inner figure in the heat utilization side device is the same color as the color of the outer peripheral line when the difference between the current value information and the set value information is within a predetermined range. Therefore, when the control state of the air conditioning equipment is good, if the screen is designed to have many colors of the same system, the heat transfer side equipment saves energy as the heat medium is transferred less. The figure becomes smaller, the background color inside the outer peripheral line looks larger, and the color of the same system becomes larger as a whole. On the other hand, in the equipment on the heat utilization side, the energy loss is small and the energy is saved as the resistance of the flow of the heat medium is reduced, and the inner figure (similar colors in the figure) corresponding to the opening of the valve becomes larger, and the inside of the outer peripheral line becomes larger. The area of the background color is small, and the colors of similar colors are large as a whole. Therefore, it is easy to visually recognize the energy efficiency of a large number of heat transport side devices and heat utilization side devices.

(5), (11) Further, in the heat transfer side device, the background color inside the outer peripheral line is the same as the color of the outer peripheral line when the difference between the current value information and the set value information exceeds a predetermined range. It is a systematic color system, and the color of the inner figure in the heat utilization side device is opposite to the color of the outer peripheral line when the difference between the current value information of the temperature and the set value information is within a predetermined range. If the color is the color, and the difference between the color of the outer line and the color inside it is conspicuous when the control state of the air conditioning equipment is insufficient, a large number of equipment on the heat transfer side and heat utilization It is easier to see the energy efficiency of the equipment on the side.

(6), (7) When the display means displays the display elements of the equipment on the heat utilization side connected to the common vertical pipe of a building such as a building vertically side by side on the screen of the display unit, further. When the display means displays the display elements of the devices on the heat utilization side installed on the same floor of a building such as a building side by side with respect to the screen of the display unit, a large number of devices are used. Monitoring and response to inadequate conditions, such as resetting set values, can be made easier.

FIG. 1 is a functional block diagram showing an example of the central monitoring device of the present invention. FIG. 2 is a functional block diagram showing an embodiment of the monitoring system. FIG. 3 is a table showing the configurations in the variable flow rate system and the variable air volume system. FIG. 4 is a piping system diagram showing an example of the flow of an air conditioning facility including a heat transfer side device and a heat utilization side device in a variable flow rate system. FIG. 5A is a schematic view showing an example of the hardware configuration of the central monitoring device, and FIG. 5B is a schematic diagram showing an example of the hardware configuration of the controller. FIG. 6 is a flowchart showing an embodiment of processing of a program used in the central monitoring device. 7A is a schematic diagram showing one embodiment of the display element, and FIGS. 7B, 7C and 7D are schematic views showing another embodiment of the display element. FIG. 8 is a block diagram showing input / output of operations for conversion to display elements. FIG. 9A is a schematic diagram showing the data structure of the outer graphic color database, and FIG. 9B is a schematic diagram showing the data structure of the inner graphic color database. FIG. 10A is a schematic diagram showing the data structure of the internal graphic size database, and FIG. 10B is a schematic diagram showing the data structure of the background color database. FIG. 11A is a schematic view showing an embodiment of a screen in which the air conditioning equipment using the variable flow rate system shown in FIG. 4 is displayed by the display means of the present invention. 11B is a schematic view showing the type of color of the outer figure in FIG. 11A, and FIG. 11C is a schematic view showing the size of the inner figure in FIG. 11A. FIG. 12 is a schematic view showing another embodiment of the flow of the air conditioning equipment including the heat transfer side device and the heat utilization side device in the air change amount system.

[1. Outline explanation]
<First Embodiment>
(Monitoring system 20)
First, an example of a monitoring system in which the central monitoring device of the present invention is used will be described with reference to the schematic diagram of FIG. The monitoring system 20 monitors the air conditioning equipment of the variable flow rate system. The monitoring system 20 includes a device 26 on the heat transfer side, a device 27 on the heat utilization side, and a central monitoring device 1 for monitoring them. The device 26 on the heat transfer side includes a pump 2a and a controller 7a for transferring hot water / cold water (heat medium) to a plurality of devices 27 on the heat utilization side. The device 27 on the heat utilization side is a large number of air conditioners that are separately installed according to the load tendency of a large number of target rooms, and is conveyed by the pump 2a and supplied to the coil, which is a heat exchanger built in each air conditioner, to generate heat. This is a control system for an air conditioner that adjusts the amount of water 4 (heat medium) that is taken out and returned to control the temperature of the room (see FIGS. 4 and 12).

Reference numeral 26a supplies heated / cooled water as a heat source that imparts cold heat or hot heat to the heat medium circulated between the device 26 on the heat transfer side, the pump for transfer, and the air conditioner that is the load. It is a heat source control device for controlling the number of heat sources for a heat source machine. There are various combinations of hot and cold sources for heating / cooling water, and a known heat pump such as a cold / hot water generator is used as an example. A combination of a boiler and a refrigerator may be used. In the present embodiment, for example, the heat source machine 26a and the device 26 on the heat transfer side form a heat source side control network group 22 in the heat source machine room. On the other hand, the plurality of heat utilization side devices 27 are grouped for each floor, for example, and form heat utilization side network groups 22 and 22 in different control panels, respectively. These network groups 22 and 22 are connected to a communication trunk line 21 composed of an optical fiber or the like via gateways 23 and 23.

The current values 13a and 13b and the set values 14a and 14b to be controlled from the device 26 on the heat transfer side and the device 27 on the heat utilization side via the communication trunk line 21, and further from the controllers 7a and 7b to the inverter 5a and the electric two-way valve. The control output values 12a and 12b sent to the control device such as 5b, the current value of the output of each flow rate controller, and the like are collected in the central monitoring device 1.

In FIG. 2, one device 26 on the heat transfer side, one heat source machine 26a, and one device 27 on the heat utilization side are shown, but usually a plurality of devices, particularly a large number of devices 27 on the heat utilization side, are shown. It is connected (see FIGS. 4 and 11A). A network group may be formed by the device 26 on the heat transfer side and the device 27 on the heat utilization side. The devices may be combined in any way.

[2. Details of each configuration]
(Device 26 on the heat transfer side)
The device 26 on the heat transfer side is provided with the above-mentioned pump (heat transfer side device) 2a for transferring heat. From here, FIG. 3 will also be described. The pressure value of water 4 as a heat medium conveyed by the pump 2a is a control target, but the pressure value controls the coil of the air conditioner connected to the branch pipe divided at the end of the water main pipe to which the pump is connected. It is a set value for applying a certain amount of force to supply water despite the pressure loss of the electric two-way valve 3a, which is a valve, and the value itself is not directly related to the air conditioning load on the secondary side. The pressure value is acquired as current value information 13a by a sensor 17a provided at the outlet of the pump 2a. The current value information 13a is sent to the controller 7a. Based on the difference between the acquired current value information 13a and the target set value information 14a, the controller 7a provides a new control output value (output value information) 12a of the pump 2a for feeding back so that the difference disappears. Calculate. The output value information 12a is given to the inverter 5a as a power supply frequency. The inverter 5a applies electric power having a power frequency (output value information) 12a to the motor of the pump 2a. Proportional control, differential control, and integral control are used in combination for feedback.

FIG. 4 shows an air conditioning facility using a variable flow rate system. In a large-scale building, a plurality of variable flow rate systems shown in FIG. 4 may be installed depending on the floor, direction, load system, and the like. Headers 18 and 18 for mixing heated or cooled water sent from a heat source are provided before and after the pump 2a of the equipment. The header 18, the pump 2a, the controller 7a, the inverter 5a, and the sensor 17a constitute a device 26 on the heat transfer side.

In the device 2 on the heat transfer side and the device 3 on the heat utilization side, the same reference numerals are given to the configurations common as a superordinate concept, and when it is necessary to distinguish them, the subscripts a or b are attached respectively. For example, in the control device shown in FIG. 4, an inverter 5a is used on the heat transfer side and an electric two-way valve 5b is used on the heat utilization side.

(Device 27 on the heat utilization side)
Returning to FIG. 2, the device 27 on the heat utilization side is provided with a heat utilization side device (air conditioner coil 3a) for utilizing heat. Water (hot water or cold water) 4 conveyed from the pump 2a is passed through the tube side of the air conditioner coil 3a, and flows around the outside of the tube of the air conditioner coil 3a and the fins thermally connected to the tube. It exchanges heat with air. The air conditioner coil 3a is provided with an electric two-way valve (control device) 5b. The electric two-way valve 5b receives the valve opening degree 12b as a control output value, and adjusts the flow rate of the conveyed water 4 to the air conditioner coil 3a. The control target of the electric two-way valve 5b is the indoor temperature. The value of the room temperature is acquired by a sensor 17b provided in the room as the current temperature information 13b. The acquired current value information 13b of the temperature is sent to the controller 7b. The controller 7b calculates an opening signal 12b fed back so as to eliminate the difference based on the difference between the current temperature value information 13b and the temperature set value information 14b. Proportional control, differential control, and integral control are used in combination for feedback.

The fan 19, the air conditioner coil 3a, the controller 7b, the electric two-way valve 5b, the air supply temperature sensor 17c, and the room temperature sensor 17b in FIG. 4 constitute a device 27 on the heat utilization side. In principle, the supply air temperature sensor 17c is an electric two-way valve that is selected and input between the measurement value of the supply air temperature sensor 17c and the measurement value of the room temperature sensor 17b in order to keep the supply air temperature constant in the single duct system with a variable air temperature. It is installed because it is controlled. In the VAV (variable air volume unit) connected to the air supply duct at the end of the air conditioner and installed in each zone, when the load in the zone in charge becomes small and the required air volume becomes small, the room temperature sensor 17b can be used for each VAV. The air volume of the air conditioner fan is controlled by the required air volume ratio input to the control unit and calculated, and when the air volume becomes small, the heat exchange amount is the same as the opening of the electric two-way valve 5b in the air conditioner coil 3a. However, when the air volume is small, it becomes excessive, and the control is executed in which the electric two-way valve 5b is throttled by the heat load of the target chamber.

(Central monitoring device 1)
FIG. 1 shows a central monitoring device. The central monitoring device 1 includes an acquisition means 8 for acquiring information values from a device on the heat transfer side and a device on the heat utilization side, a conversion means 9 for converting information values to be displayed on the display unit 11 based on the information values, and a conversion means 9. It is provided with a display means 10 for displaying the converted information. Further, the output from the central monitoring device 1 is displayed on a display unit 11 such as a display. The display unit 11 may be integrated with the central monitoring device 1. The acquisition means 8 acquires the output value information 12a including the control output value given to the pump 2a, the current value information 13a including the current value of the pressure from the pump, and the set value information 14a including the set value of the pressure. Further, the output value information 12b as the opening degree given to the electric two-way valve 5b, the current value information 13b including the current value of the opening degree, and the set value information 14b including the set value of the opening degree are acquired.

The conversion means 9 displays the output value information 12a and 12b acquired by the acquisition means 8, the current value information 13a and 13b, and the set value information 14a and 14b, respectively, based on the pre-registered condition 38. It is converted into the display elements 24 and 25 of the heat transfer side device 2 and the heat utilization side device 3 to be displayed on 11. The display means 10 displays the display elements 24 and 25 on the same screen 40 of the display unit 11. That is, they are displayed in a predetermined arrangement on the same screen without switching the screen 40.

[3. Hardware configuration]
Next, the hardware configuration of the central monitoring device 1 will be described with reference to FIG. 5A.

(Hardware configuration of central monitoring device 1)
As shown in FIG. 5A, a computer is used in the central monitoring device 1 of this embodiment. The computer includes a CPU 30, which includes a non-volatile memory 31, a volatile memory 32, a storage device using light (for example, DVD), a storage device using magnetism, and a USB or SD card. A drive 34 for reading the rewritable device 33 and a communication circuit 35 for communicating with the outside via the network are connected via the bus line 36.

Further, the non-volatile memory 31 includes a program 37 used for the central monitoring device 1 of the present invention, a database 38 used for conversion conditions (hereinafter, conversion condition DB), a browser program 39a, and an OS 39b (operating system). It has been recorded.

The program 37 used for the central monitoring device is a program installed in the central monitoring device 1 in order to realize the display on the display unit 11. The program 37 used for the central monitoring device operates in cooperation by utilizing the functions of the OS 39b and the browser program 39a. It may be a separate program different from the OS 39b and the browser program 39a. The program 37 used for the central monitoring device, the conversion condition DB 38, the browser programs 39a and the OS 39b are stored in a rewritable device 33 such as a DVD or a USB or SD card, and are stored in the rewritable devices 33 such as a USB or SD card, and are stored in the memories 31 and 32 via the drive 34. Will be installed on.

(Hardware configuration of controller)
FIG. 5B shows the hardware configurations of the controllers 7a and 7b (see FIG. 2). Since the hardware configuration is almost the same as the hardware configuration of the central monitoring device 1 of FIG. 5A described above, the same parts are designated by the same reference numerals and the description thereof will be omitted. A program for operating the control device (inverter 5a, electric two-way valve 5b) and the like are installed in the non-volatile memory 31 of the controllers 7a and 7b. Further, the sensors 17a and 17b are connected to the bus line 36, and the pump 2a (heat transfer side device 2) or the air conditioner coil 3a (heat utilization side device 3) is connected. The set value information 14a and 14b are stored in the memories 31 and 32. It may be stored in an external database.

In the hardware configuration shown in FIGS. 5A and 5B described above, the function shown in FIG. 1 is realized by using the program 37 used for the CPU 30 and the central monitoring device or the program 37 for operating the controllers 7a and 7b. However, a part or all of them may be sequence-controlled using a logic circuit such as a microcomputer or a PLC (programmable logic controller). The acquired output value information 12a, 12b, current value information 13a, 13b, set value information 14a, 14b, and all or part of the conversion condition DB 38 may be stored in an external server.

[4. Program used for central monitoring system]
(Conversion method to display element 24 on the heat utilization side)
FIG. 6 is a flowchart showing an embodiment of processing of the program 37 used in the central monitoring device of FIG. 5A. A method of converting the operating state of the electric two-way valve 5b on the heat utilization side into the display element 24 will be described using this flowchart.

(S1) In the present embodiment, the CPU 30 outputs output value information 12b, current value information 13b, set value information 14b (see FIG. 2), operation / stop information, and cooling / heating information from the controller 7b at a predetermined timing or. Get in real time.

(S2) In the case of the first information acquisition, the process proceeds to the next step. In the case of information acquisition from the second time onward, it is determined whether the acquired information has changed. If there is no change, the process returns to step S1. If there is a change, the process proceeds to the next step S3. The acquired information may be converted without determining whether or not there is a change. For example, it is effective when the amount of information is small.

(S3) The changed information is converted into a display element based on the conversion condition DB38 (see FIG. 5A).

FIG. 7A shows a display element 24 obtained by converting the acquired information. The display element 24 includes an outer peripheral line 24a and an inner figure 24b having a similar shape to the outer peripheral line arranged in the outer peripheral line 24a. The outer peripheral line 24a is a circular line. The inner figure 24b is a circle (including the inside) arranged substantially concentrically inside the outer figure.

FIG. 8 shows the input / output of the operation for conversion to the display element. The conversion means 9 (see FIG. 1) inputs the acquired information (14b, 13b, 12b) and outputs the display element 24 (heat utilization side device) to be converted. The calculation for the conversion includes the outer peripheral line color determination calculation 42, the inner figure color determination calculation 43, the inner figure size determination calculation 44, and the background color determination calculation 45 in FIG. The background color 51a is the color of the space 24c between the outer peripheral line 24a and the inner figure 24b of FIGS. 7a and 7b. These operations may be performed in any order. For example, if the background color determination calculation 45, the inner figure color determination calculation 43, the outer peripheral line color determination calculation 42, and the inner figure size determination calculation 44 are performed in this order. It is preferable that there is no blank space on the display.

(Outer line color determination calculation 42)
In the outer peripheral line color determination calculation 42, the color 48a of the outer peripheral line 24a of the display element 24 of the heat utilization side device is input by inputting the operation / stop state information 46, the cooling / heating state information 47, the set value information 14b, and the current value information 13b. Is output.

(Outer line color database 48)
FIG. 9A shows the data structure of the outer peripheral line color database (outer peripheral line color DB) 48. For example, the outer peripheral line color determination operation 42 of FIG. 8 refers to the outer peripheral line color DB 48 to obtain an output. The CPU 30 takes in either "run" or "stop" based on the run / stop state information 46, takes in either "cooling" or "heating" from the cooling / heating state information 47, and depending on those conditions. Proceed with the following calculation. Next, the difference between the set value information 14b and the current value information 13b is calculated. If the difference X is -1 ° C ≤ X ≤ 1 ° C, the current value satisfies the set value, and if X <-1 ° C, the region is lower than the set value, and 1 ° C <X. If so, it is judged that the area is higher than the set value.

In the region where the air conditioner is satisfied, for example, green is output as the outer peripheral line color 48a to give an image of moderate coolness. If it is higher than the set value, a red color reminiscent of heat is output. If it is lower than the set value, a blue color reminiscent of cold is output. In the region that is satisfied during heating, for example, orange is output as a color that gives an image of moderate warmth as the outer peripheral line color 48a. If it is higher than the set value, a red color reminiscent of heat is output. If it is lower than the set value, a blue color reminiscent of cold is output. On the other hand, if the operation / stop state information 26 is stopped, a gray color is output.

(Inner figure color determination calculation 43)
Next, the inner figure color determination operation 43 will be described. Returning to FIG. 8, the inner figure color determination calculation 43 outputs the color 49a of the inner figure 24b by inputting the operation / stop state information 46 and the cooling / heating state information 47.

(Internal graphic color database 49)
FIG. 9B shows the data structure of the inner graphic color database (inner graphic color DB). For example, in the inner graphic color determination calculation 43, the CPU 30 refers to the inner graphic color DB 49, selects “operation” or “stop” from the operation / stop state information 46, and “cools” or “cooling” or “cooling” or “cooling” from the cooling / heating state information 47. Select "Heating" to obtain the color output 49a of the inner figure 24b. According to the inner graphic color DB 49, a color that gives an image of moderate warmth as the inner graphic color 49a at the time of heating, for example, light orange is output. On the other hand, when cooling, a color that gives an image of ecology and coolness, such as yellowish green, is output. It is preferable that the inner graphic color 49a and the outer peripheral line color 48a are the same color. On the other hand, if the operation / stop state information 46 is stopped, a gray color is output.

(Internal figure size determination operation 44)
Next, the inner figure size determination operation 44 will be described. Returning to FIG. 8, in the inner figure size determination calculation 44, the CPU 30 outputs the size of the inner figure 24b as the frequency increases or decreases as a control output value. The size is such that it touches the outer figure 24a at the maximum or leaves a slight gap. On the other hand, when there is no control output value, the size is zero and it is not displayed. A point may be displayed.

(Internal figure size database 50)
For example, in the inner figure size determination calculation 44, the size is calculated by an calculation formula having a frequency 12a as a function. In addition, you may refer to the database. FIG. 10A shows the data structure of the inner figure size database (inner figure size DB) 50. For example, the CPU 30 does not display the inner figure 24b when the ratio Y of the power frequency 12a given to the motor of the pump 2a to the maximum value assumed in the pump in advance is Y = 0%, and 0 <Y ≦ 30%. If there is, it is output in the size of 25% of the assumed maximum size, if 30% <Y <60%, it is output in the size of 50% of the maximum size, and if 60 ≤ Y <100%, it is the maximum. The output is 75% of the size, and if Y = 100%, the maximum size is output.

As the opening degree of the electric two-way valve 5b (see FIG. 2) increases, the resistance of the water flow decreases and the energy loss decreases. Therefore, as the size of the inner figure 24b increases, the color scheme emphasizes ecology. The color of the outer peripheral line 24a and the color of the inner figure 24b when the set value is satisfied are the same system color. Therefore, in the case of cooling, the larger the area of the green system, the better the control and the smaller the energy loss. This situation can be grasped immediately and intuitively by the observer.

(Background color determination calculation 45)
Next, the background color determination operation 45 will be described. The inner figure color determination calculation 45 outputs the color of the space 24c in the outer figure, that is, the background color, by inputting the operation / stop state information 46 and the cooling / heating state information 47. The background color is hidden behind the inner figure color and appears when the inner figure size on the front becomes smaller.

(Background color database 51)
FIG. 10B shows the data structure of the background color database (background color DB) 51. For example, the background color determination operation 45 obtains an output with reference to the background color DB 51. The CPU 30 refers to the column of "operation" or "stop" from the operation / stop state information 46, and refers to any column of "cooling" or "heating" from the cooling / heating state information 47. According to the background color DB 51, at the time of heating, the background color outputs a color that is unstable and makes the image of cold (that is, a cold color), for example, gray blue. When cooling, it outputs a color that is unstable and makes the image of heat (that is, a warm color), for example, pink. It is preferable that the internal graphic color and the background color are opposite colors or close to each other in order to enhance the colors. On the other hand, if the operation / stop state information 26 is stopped, the color is not displayed. A gray color may be output.

(Calculation method)
Further, instead of the data table, the information to be input in FIG. 8 may be input, and a function or mathematical formula for outputting the color and size may be used to obtain the information by calculation. The formula is stored in the memories 31 and 32 as the conversion condition 38. Then, it is appropriately calculated based on each item of the input information and converted into a display element. The calculation method and the data table method may be combined. For example, some outputs may be calculated and the rest may be obtained from the data table.

(Conversion method to display element 25 on the heat transfer side)
FIG. 7B shows the display element 25 on the heat transfer side. The display element 25 includes an outer peripheral line 25a and an inner figure 25b. The inner figure 25b is a square. The outer peripheral line 25a corresponds to the outer circumference of the square, and the inner figure 25b is arranged inside the outer peripheral line 25a. If the display element 25 on the heat transfer side is different from the display element on the heat utilization side, it is easy to distinguish them, but the same circular shape may be used for the purpose of unifying the design. Further, both can be quadrangular or square (see FIG. 11).

On the heat transfer side, the frequency of the inverter is assigned to the inner figure 25b in order to express the operating state of the pump 2a. The control target (see FIG. 3) is pressure, and a pressure sensor 17a (see FIG. 2) is provided on the discharge side of the pump. In the case of the display element 25 on the heat transfer side, contrary to the usage side, the background color 51a (see FIG. 7) is colored with an image of ecology, and the internal graphic color 49a is colored with a color that makes the image of instability. .. This is because the higher the frequency 12a of the inverter 5a, the larger the energy consumption, and the lower the frequency 12a, the more the ecology is emphasized.

(S4) Returning to FIG. 6, the display element 25 indicating the operating status of the pump on the transport side and the display element 24 indicating the operating status of the air conditioner coil on the user side are displayed on the screen 40 of the display unit 11. (See FIG. 1). The step S3 of determining the color of the outer peripheral line of FIG. 6, determining the size of the inner figure, determining the color of the inner figure, and displaying the display element corresponds to the method of displaying the status of the air conditioning equipment of the present invention. ..

(S5) After that, if the monitoring is to be continued, the process returns to S1. If the system stops, stop monitoring.

<Example>
The screen 40 of FIG. 11A shows the state of the air conditioning equipment using the variable flow rate system shown in FIG. 4 on the display unit 11 by the display means 10 of the central monitoring device of the present invention. In the figure, square display elements (see FIG. 7A) are used on the heat transfer side and the heat utilization side. Regarding the sizes and colors of the display elements 24 and 25, the outer peripheral line color DB48 (see FIG. 9A), the inner graphic color DB49 (see FIG. 9B), the inner graphic size DB50 (see FIG. 10A), and the background color DB51 (see FIG. 10B) are described. See).

The sizes and colors of the display elements are summarized in FIGS. 11B and 11C. For example, in FIG. 11A, when the outer graphic color is red, it is represented by black, when it is orange, it is represented by diagonal lines, and when it is blue, it is represented by white. The background color 51a is shown as blue gray in the background color DB51 of FIG. 10B, but is represented by white in FIG. 11A. Further, the inner figure color 49a is light orange in the inner figure DB 49 of FIG. 9B, but is represented by the same diagonal line as the outer figure in FIG. 11A.

On the screen 40 shown in FIG. 11A, if the displayed hue is a green tone (diagonal line in the figure), it can be known that the problem has not occurred. Also, if the same display element is displayed in red (blackened in the figure) or blue (white in the figure) for a long time, it may contain some abnormality. However, if it is a short time, it is considered to be a transient state at the time of startup, so it is not abnormal.

List the main causes of the anomaly.
・ Inappropriate air supply temperature setting value of air conditioner ・ Excess or deficiency of air conditioner coil capacity ・ Excess or deficiency of transfer pump capacity ・ Inappropriate transfer pump pressure setting value ・ Flow rate adjustment by manual valve in piping system Is inappropriate ・ Abnormality of automatic control equipment

When the ratio of a specific color exceeds the ratio registered in advance in the memories 31 and 32 (see FIGS. 5A and 5B), the abnormality information is transmitted to a tablet terminal or smart fan owned by the administrator. You may.

In addition, if the pink color is conspicuous as a whole during the cooling operation, there is a possibility that energy is wasted. If this tendency is remarkable, it is necessary to review the pressure setting value of the transfer pump and readjust the flow rate of the piping.

In FIG. 11A, the display element 24 showing the status of the device on the heat utilization side and the display element 25 showing the status of the device on the heat transfer side are displayed on the same screen 40. Therefore, the operating status of the heat transfer side device 2 and the heat utilization side device 3 can be grasped at a glance. On top of that, the screen area 40a, which is a set of the display element 25 of the pump and the display element 24 of the air conditioner coil connected to the pump, is separated in the screen 40 by a vertical dividing line 41b. The screen area 40a may be separated by another color so as to be different from the screen color.

Further, the display elements 24 of the heat utilization side equipment installed on the same floor of a building such as a building are displayed side by side with respect to the screen 40a of the display unit. In the figure, each floor is separated by a horizontal dividing line 41a. The lowermost horizontal division line 41a separates the device on the heat transfer side and the device on the heat utilization side. Furthermore, the devices connected by the same vertical pipe are displayed side by side in the vertical direction. In FIG. 11A, the heat utilization side devices of reference numerals A, B, C, and D and the heat utilization side devices of E, F, G, and H are connected by the same vertical pipe. A heat medium is transferred from the heat transfer side devices represented by reference numerals I to the heat utilization side devices A to H.

Further, the vertical division line 41b in the center of the screen divides the display element into left and right. The vertical division line 41b expresses that the heat medium is transferred from the heat transfer device on the right side to the heat utilization side device on the right side. As shown in the figure, by dividing the display elements 24 and 25 into a plurality of group units and displaying them side by side, the situation of a single device and the entire group can be grasped simultaneously and intuitively.

[5. Other embodiments]
Next, another aspect of the monitoring system in which the central monitoring device of the present invention is used will be described. Since these monitoring systems are almost the same as the above-mentioned monitoring system 20 (see FIG. 2), only the different parts will be described, and the description of the same parts will be omitted.

<Modification example 1>
In the above-mentioned first embodiment (see FIGS. 2 and 3), the control target of the device on the heat utilization side is "room temperature" (room temperature control), but as in the modified example 1 shown in FIG. 3, the heat utilization side By indirectly controlling the room temperature by controlling the air volume of the air conditioner fan while maintaining the temperature supplied by the device 27 at a constant temperature, the air volume from the room temperature of each room is controlled via the air volume request ratio. It can also be targeted (VAV control with a single duct system for changing air volume).

<Second Embodiment>
(Heat transfer side equipment 2 of variable air volume method)
In the first embodiment, the heat medium is hot water / cold water, but as shown in the lower part of FIG. 3 and FIG. 12, the heat medium in the variable air volume system can be air. In that case, the air conditioner fan (reference numeral 2b in FIG. 12) as the heat transfer side equipment ducts 6 (see FIG. 12) the air temperature-controlled by the cold water coil (reference numeral 19 in FIG. 12) or the hot water coil in the air conditioner. Blow air to each room through.

FIG. 12 shows the air conditioning equipment of the variable air volume system. A central air conditioner 28 is used as a device on the heat transfer side, and the air conditioner fan 2b blows air into a room 6a requiring air conditioning through a duct 6 using the temperature-controlled air 4a as a heat medium. The rotation speed of the air conditioner fan 53 is controlled by the control device (inverter) 5a. The inverter 5a gives a control output value (frequency) 12a as its power supply frequency in order to rotate the motor of the air conditioner fan 2b at a target rotation speed. Further, the control target of the air conditioner fan 2b is the static pressure of the air 4a blown into the duct 6.

The static pressure value of the air 4a blown by the air conditioner fan 2b is acquired by the sensor 17b provided near the outlet of the air conditioner fan 2b as the current value information 13a. The acquired current value information 13a is sent to the controller 7a. Based on the difference between the acquired current value information 13a and the set value information 14a, the controller 7a feeds back in the direction of eliminating the difference to adjust the rotation speed of the air conditioner fan 53, so that the frequency 12a of the new control output value is used. Is calculated. Proportional control, differential control, integral control, etc. are used for the negative feedback at this time, and the feedback gain is set by the administrator.

Further, behind the air conditioner fan 2b, a heat exchange coil 19 for cold water and hot water into which heated or cooled water sent from a heat source flows is provided. The heat exchange coil 19, the air conditioner fan 2b, the controller 7b, the inverter 5a, and the sensor 17b constitute a device 28 on the heat transfer side.

(Heat utilization side device 3)
Air 4a whose temperature is controlled is supplied to the device (air change amount device) 29 on the heat utilization side through the duct 6 and the electric damper 5b. The temperature-controlled air 4a is sent out from the outlet 3b to the room 6a. Then, by adjusting the opening degree of the electric damper 5b, the flow rate of the temperature-controlled air 4a supplied to the room 6a is controlled, and the temperature of the room 6a is controlled. The electric damper 5b receives information on the amount of valve opening as a control output value (opening) 12b from the controller 7b, and if the current value is lower than the set value, the flow rate is increased to raise the room temperature, and if it is high, the flow rate is increased. The room temperature is lowered by squeezing, and as a result, the opening is adjusted so that the current value matches the set value. As a result, the inflow amount of the toned air 54 conveyed into the room is controlled, and the room temperature is controlled. Further, the control target of the electric damper 5b is the temperature of the room 6a.

The value of the room temperature is acquired by the sensor 17b provided in the room as the current value information 13b. The acquired current value information 13b is sent to the controller 7b, and for example, based on the difference from the set value information 14b regarding the set temperature, the electric damper 5b is opened and closed in the direction of eliminating the difference, so that a new control output is obtained. The opening degree 12b of the value is calculated. The controller 7b, the electric damper 5b, and the sensor 17b in FIG. 12 constitute a device 29 on the heat utilization side. For example, a signal of the opening degree of the electric damper 5b of a large number of air changing devices 29 is sent to the controller 7b, and a required air volume ratio of how much air volume is desired to be sent from the air conditioner fan 2b of the air supply source is predetermined. It is calculated based on the calculation formula and the opening degree 12b of the control output values from a large number of air change rate devices, and it is given as a required rotation speed control signal to the inverter 5a of the air conditioner fan 2b. As a result, the room temperature is directly used to control the opening degree of the electric damper 5b of the air changing amount device 29, while indirectly controlling the total air volume of the air conditioner, which is the device 28 on the heat utilization side.

Also in the air conditioning equipment of the above-mentioned variable air volume system, the controller 7a on the heat transfer side and the controller 7b on the heat utilization side are connected to the central monitoring device 1 via a gateway or a central trunk line. Similar to the central monitoring device 1 of the first embodiment, the central monitoring device 1 acquires each information value, converts it, and displays it on the display unit in a predetermined pattern. As a result, the observer can immediately and accurately grasp the current status and change status of the entire system, change the set value as necessary, and connect the faulty part to early repair. ..

<Modification 2>
In the second embodiment of FIG. 12, the sensor 7b detects the room temperature, and the controller 7b and the electric damper 5b control the room temperature. However, as shown in the second modification of FIG. 3, it is also possible to detect the pressure of the air in the room and adjust the pressure (room pressure control).

[6. Others]
The shape of the display element 24 may be an ellipse as well as a round shape. Further, it may be a polygon such as a triangle, a quadrangle, a pentagon, or a rhombus, or a polygon including a curve in part. A shape having the same side length, such as an equilateral triangle, is preferable. The outer line 24a does not have to be completely closed. For example, as shown in FIGS. 7C and 7D, a gate-shaped figure excluding the base of the quadrangle or a mountain-shaped figure without the base of the triangle may be used. The color of the display element in the above-described embodiment may be changed to another color.

In addition, the numerical range in each data table can be changed as appropriate. For example, the numerical range may not be expressed as a ratio but may be expressed by the numerical range of the measured value. Furthermore, it is not necessary to set the background color. The above-described embodiments can be used in appropriate combinations. The internal figure size may be proportional to the control output value, or may be increased or decreased logarithmically. Further, the control output value may be divided into several categories, an calculation formula may be provided for each category, and the size may be output.

The predetermined range of the difference between the set value and the current location is plus or minus 1, but the range may be changed. When the abnormality information is transmitted to a tablet terminal, a smartphone, or the like owned by the administrator, it is transmitted by the transmission means provided in the program 37 (see FIGS. 5A and 5B).

1 Central monitoring device 2 Heat transfer side equipment (air change amount device)
2a Pump 3 Heat utilization side equipment 3a Air conditioner coil,
4 Water (heat medium)
5a Inverter 5b Electric two-way valve, Electric damper 6 Duct 7a, 7b Controller 8 Acquisition means 9 Conversion means 10 Display means 11 Display unit 12a Frequency (output value information, control output value)
12b opening (output value information, control output value)
13a, 13b Current value information 14a, 14b Set value information 17a Pump outlet pressure sensor 17b Room temperature sensor 17c Supply air temperature sensor 18 Header 19 Coil 20 Monitoring system 21 Communication trunk line 22 Network 23 Gateway 24 Display element (heat utilization side)
24a Outer line 24b Inner figure 24c Space (background)
25 Display element (heat transfer side)
25a Outer line 25b Inner figure 26 Heat transfer side device (variable flow rate method)
27 Heat utilization side device (variable flow rate method)
28 Central air conditioner (device on the heat transfer side)
29 Air variable air volume device (device on the heat utilization side)
30 CPU
31 Non-volatile memory 32 Volatile memory 33 Device 34 Drive 35 Communication circuit 36 Bus line 37 Program 38 Conversion condition 39a Browser program 39b OS
40 Screen 41a Horizontal division line 41b Vertical division line 42 Outer line color determination calculation 43 Inner figure color determination calculation 44 Inner figure size determination calculation 45 Background figure determination calculation 46 Operation / stop status information 47 Cooling / heating status information 48 Outer line color database 48a Outer line color 49 Inner figure color database 49a Inner figure color 50 Inner figure size database 50a Inner figure size 51 Background color database 51a Background color 28 Heat transfer side device (center air conditioner) (air variation method)
29 Heat utilization side device (indoor air conditioner) (air change method)
2b Air conditioner fan 3b Outlet 6a Indoor

Claims (11)

Connected to the heat transfer side device that transports the heat medium and the heat utilization side device that extracts heat from the heat medium to harmonize the target with air via the controller of the heat transfer side device and the heat utilization side device. Central monitoring device
The output value information including the control output value of each controller, the current value of the flow controller output of the heat medium of the heat utilization side device, and the current value indicating the flow controller output of the heat transfer side device, and the temperature of the target are measured. As an acquisition means for acquiring the current value information of the thermometer and the set value information including the temperature set value of the target, the maximum output of the flow controller of the heat medium of the heat utilization side device, and the maximum output of the flow controller of the heat transfer side device. ,
A conversion means that converts the information acquired by the acquisition means into display elements based on the conversion conditions registered in advance, and
On the same screen of the display
The heat transfer side device and the heat utilization side device are arranged on the display unit in an arrangement in which it can be seen as a geometrical aggregate that the heat medium actually transported is along the circulation path.
A central monitoring device for air conditioning equipment, consisting of a display element for heat transport side equipment and a display means for displaying the display element for heat utilization side equipment as a set. Each of the display elements is composed of an inner figure, an outer peripheral line arranged on the outer circumference of the inner figure and having a fixed shape, and a background color arranged between the inner figure and the outer peripheral line.
The conversion means converts the output value information into an internal figure having a size corresponding to the information.
The difference between the current value information and the set value information is converted into an outer line of the color corresponding to the difference, and the difference is converted.
By switching the target air conditioning to either cooling or heating, the heat-utilizing side equipment has a warm color on the cooling side, the heating side has a cold color, and the heat-conveying side equipment has a heat-utilizing side on both the cooling side and the heating side. Convert the background color to the same color as the inner figure,
The central monitoring device for the air conditioning equipment according to claim 1. When the difference between the current value information and the set value information is within a predetermined range, the conversion means converts the current value into an outer line of a color indicating that the current value is appropriate.
When the difference between the current value information and the set value information is negative, the current value information is converted into an outer line of a color indicating that the current value is too low.
The air conditioning according to claim 2, wherein when the difference between the current value information and the set value information is positive, the current value information is converted into an outer line of a color indicating that the current value is too high. Central monitoring device for equipment. In the heat transfer side device, the background color inside the outer peripheral line is a color of a color system opposite to the color of the outer peripheral line when the difference between the current value information and the set value information is within a predetermined range.
In the heat utilization side device, the color of the inner figure is the same color as the color of the outer peripheral line when the difference between the current value information and the set value information is within a predetermined range.
The central monitoring device for the air-conditioning equipment according to claim 3, wherein when the control state of the air-conditioning equipment is good, the colors of the same system are increased on the screen. In the heat transfer side device, the background color inside the outer peripheral line is a color of the same system as the color of the outer peripheral line when the difference between the current value information and the set value information exceeds a predetermined range.
In the heat utilization side device, the color of the inner figure is a color opposite to the color of the outer peripheral line when the difference between the current value information and the set value information is within a predetermined range.
The central monitoring device for air-conditioning equipment according to claim 4, wherein when the control state of the air-conditioning equipment is insufficient, the difference between the color of the outer peripheral line and the color inside the air-conditioning equipment is conspicuous. Claim 1, 2, 3, 4 or 5 in which the display means displays the display elements of the heat utilization side equipment connected to the common vertical pipe of a building such as a building vertically side by side on the screen of the display unit. Central monitoring device for air conditioning equipment according to any of the above. Claims 1, 2, 3, the display means displays the display elements of the heat-utilizing device installed on the same floor of a building such as a building side by side with respect to the screen of the display unit. Central monitoring device for air conditioning equipment according to any of 4, 5 or 6. This is a method of displaying the status of air-conditioning equipment consisting of a heat-conveying equipment that conveys a heat medium and a heat-utilizing equipment that extracts heat from the heat medium to harmonize the target with air.
The internal figure is displayed in a size corresponding to the control output value for adjusting the amount of transport or use of the heat medium or the current value of the flow controller output.
The outer circumference of the figure is colored based on the size of the difference between the current value information including the current value of the thermometer that measures the temperature of the controlled object and the set value information including the temperature set value of the controlled object. ,
It is arranged between the inner figure and the outer peripheral line, and when the air conditioning of the target is switched to either cooling or heating, the heat utilization side equipment becomes warm color on the cooling side, the heating side becomes cold color, and the heat transfer side equipment cools. A method of displaying the status of air-conditioning equipment that displays the internal figure of the equipment on the heat utilization side and the background color that is colored in a similar color on both the side and the heating side. On the outer circumference of the inner figure, when the difference between the current value of the target temperature controlled by the control device and the target temperature set value is within a predetermined range, an outer circumference line of a color indicating that room temperature is appropriate is drawn. Display and
When the difference between the current value of the target temperature and the target temperature set value is negative, which is equal to or greater than a predetermined value, a color outer line indicating that the room temperature is too low is displayed.
The air conditioning equipment according to claim 8, wherein when the difference between the current value of the target temperature and the target temperature set value is positive of a predetermined value or more, an outer peripheral line of a color indicating that the room temperature is too high is displayed. How to display the status. In the heat transfer side device, the color of the outer peripheral line and the background color inside the outer peripheral line when the difference between the current value of the target temperature and the target temperature set value are within a predetermined range are displayed in the same system color. And
In the heat utilization side device, the color of the outer peripheral line and the color of the inner figure when the difference between the current value of the target temperature and the target temperature set value are within a predetermined range are displayed in the same system of colors.
The method for displaying the status of the air-conditioning equipment according to claim 8 or 9, wherein when the control state of the air-conditioning equipment is good, the colors of the same system are increased on the screen. In the heat transfer side device, the color of the outer peripheral line when the difference between the current value of the target temperature and the target temperature set value exceeds a predetermined range is a color system opposite to the background color inside the outer peripheral line. Display in color,
In the heat utilization side device, the color of the inner figure is displayed in a color system opposite to the color of the outer peripheral line when the difference between the current value of the target temperature and the target temperature set value is within a predetermined range. And
The method for displaying the status of the air-conditioning equipment according to claim 10, wherein when the control state of the air-conditioning equipment is insufficient, the difference between the color of the outer peripheral line and the background color inside the air-conditioning equipment is conspicuous.

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