JP4334267B2 - Store management system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a store management system in which a plurality of stores are connected to a center server via a network, and the operation control state of each facility installed in each store is centrally managed by the center server.
[0002]
[Prior art]
Generally, for example, a temperature sensor is incorporated in various devices such as a showcase and an air conditioner installed in each store. And an apparatus controls operation uniquely so that the temperature detected with this temperature sensor may turn into the target temperature set with respect to the applicable apparatus.
[0003]
Learn about PMV (Predicted Mean Vote), which is a thermal sensation index (comfort index) adapted to the actual human sensation, and comfort of this thermal sensation index (comfort index). Patent Document 1 describes a technique for maintaining the control amount of an air conditioner within a range.
[0004]
Showcases installed in stores include open cases, refrigerated reach, refrigerated walk-in, and frozen reach. Such showcases include a control panel that monitors the operation of a refrigerator that blows cold air. . In this control panel, mechanical control is mainly performed.
[0005]
[Patent Document 1]
Japanese Patent Laid-Open No. 5-126380
[0006]
[Problems to be solved by the invention]
However, in the store management system that monitors and controls the temperature etc. by the equipment itself for each equipment such as air conditioners and showcases in each store, the monitoring control such as temperature is affected by the characteristics of the individual equipment and the management is unified Efficiency declines when considering the points that cannot be done and the energy saving effect of the entire store.
[0007]
The present invention has been made in view of such circumstances, and by centrally managing information on each facility provided in each store with a store server, the facilities in each store can be efficiently operated. Therefore, an object is to provide a store management system capable of improving the energy saving effect.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the present invention store management system is provided in each store, a plurality of store servers that monitor and control each facility by acquiring information about each facility in the corresponding store via each terminal, A center server that is connected to the store server of each store via a network and manages information of each store obtained from each store server, and a remote that is connected to the network and remotely monitors and controls the control status of each facility of each store server And a monitoring control device.
[0009]
  And in the store management system of this invention,Each facility of each store has an energy saving control mode for driving based on an energy saving algorithm set in a store server for monitoring and controlling itself and a reference control mode for driving based on a reference algorithm set for itself. Have
Usually, the operation is performed in the energy saving control mode, and when the store server abnormality or the terminal abnormality occurs, the operation is changed to the self-control mode. further,Each store server isEach point indicating the information type is managed as a code based on identification information, and has a predetermined length as one piece of information on the current value of each point, point failure, and abnormalityIt has information transmission means for creating notification format data and transmitting it to the center server at a constant cycle, and the center server manages the state of each store based on the notification format data received from each store server at a fixed cycle. To do.
[0010]
  In the store management system configured in this way,The following effects can be obtained. Each facility in each store can be operated in the energy-saving control mode while ensuring sufficient safety.Occurs at each storeDoubleOf the information related to the number of facilities, only the most important information, the current value, the presence / absence of abnormality, and the type of abnormality are created in the notification format data and notified to the center server. The entire management system can be operated efficiently.
[0011]
In another invention, in the store management system of the invention described above, the notification format data is transmitted via a dedicated line formed on the network. The remote monitoring control device transmits a monitoring change request for the control state for each facility that designates the store server to which the operation has been input to the center server via the network. The center server transmits the received control change monitoring request for each facility to the designated store server via a dedicated line.
[0012]
In the store management system configured as described above, the notification format data is transmitted via a dedicated line formed on the network for transmission efficiency and prevention of information leakage, and therefore the store server cannot be accessed from the outside. However, the maintenance staff of the store equipment can access the store server as a result by using the remote monitoring and control device held by the store equipment.
[0014]
According to another invention, in the store management system according to the invention described above, the energy saving algorithm is set such that a hysteresis range between the control execution set value and the control stop set value is set narrower than a hysteresis range of the reference algorithm, and the hysteresis range. Is set near the control execution set value of the reference algorithm.
In the store management system configured as described above, the hysteresis range is set to be narrow and is set in the vicinity of the control execution set value, so that the operation time of the facility is substantially shortened and an energy saving effect can be expected.
[0015]
According to another invention, in the store management system according to the invention described above, the store server detects a plurality of and a plurality of types of environmental states from a plurality of sensors installed inside and outside the store via each terminal. Further, the energy saving algorithm controls the operation of a plurality of types of equipment based on the detected plurality and types of environmental conditions, and controls one or more types of environmental conditions in the store to a target environmental condition.
In the store management system configured as described above, for example, when the temperature inside the store is high and the temperature outside the store is low, the target environmental state is efficiently controlled using a ventilation fan and an air conditioner.
[0016]
According to another invention, in the store management system according to the invention described above, the store server detects a plurality of and a plurality of types of environmental states from a plurality of sensors installed inside and outside the store via each terminal. Furthermore, the energy saving algorithm calculates a human thermal sensation index from a plurality of detected environmental conditions and a plurality of types of environmental conditions, and controls operation of equipment related to the environmental condition based on the human thermal sensation index.
In the store management system configured as described above, the human comfortable range is controlled in a short time.
[0017]
In another aspect, in the store management system of the invention described above, each store server obtains a statistical value for a certain period of information about each facility acquired via each terminal, and each facility acquired via each terminal Whether the acquired information is abnormal or not is determined by comparing and contrasting the information and the statistical value.
In the store management system configured in this way, when the information about each facility has seasonal variations, the level of the presence / absence determination of abnormality should be changed, but the level of determination of presence / absence of abnormality is also automatically Change.
[0018]
According to another invention, in the store management system of the invention described above, each store has a power generation device using natural energy, a power storage device, a power receiving device to which commercial power is supplied from the outside, and a power failure of the commercial power source. In the period when the power failure detection means to detect and the power failure detection means does not detect the power failure, the commercial power from the power receiving device is supplied to each facility and the power generated by the power generation device is stored in the power storage device. In the period when the power failure detection means detects the power failure, the power switching unit that supplies each facility with the power generated by the power generation device and the power stored in the power storage device is provided.
In the store management system configured as described above, the energy saving effect can be further improved.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing a schematic configuration of a store management system according to an embodiment of the present invention, and FIG. 2 is a specific configuration diagram of the store.
[0020]
In the store 1, there is equipment N as equipment.₁~ N_n, Equipment N₁~ N_nDevice terminal K connected to₁~ K_n, Equipment terminal K₁~ K_nA store server 4 connected to the store server 4 and a router 5 connected to the store server 4 are provided.
[0021]
Equipment N as equipment₁~ N_nFor example, open cases, refrigerated reach, frozen reach, oden warmers, drink cases, fryer, commercial refrigerators, power distribution devices such as power distribution boards and light distribution boards, air conditioners, outdoor units, and refrigerators Such as a refrigerator. In addition, refrigerated walk-ins are also considered as equipment.
[0022]
In the embodiment, a device terminal assigned to a power device is a power terminal, a device terminal assigned to an air conditioning device is an air conditioning terminal, and a device terminal assigned to another device is a facility terminal.
[0023]
Device terminal K₁~ K_nCan be installed between any power equipment and the store server 4 if it is a power terminal, and can be installed between any air conditioning equipment and the store server 4 if it is an air conditioning terminal, If it is a terminal for equipment, it can be installed between any equipment for equipment and the store server 4.
[0024]
Device terminal K₁~ K_nIs usually device N in store 1₁~ N_nIt functions as a repeater that relays communication between the store server 4 and the store server 4. Device terminal K₁~ K_nIs the assigned device N₁~ N_nVarious data such as current value data periodically collected by sensors (for example, a temperature sensor, a humidity sensor, and an odor sensor) are input and output to the store server 4.
[0025]
Furthermore, device terminal K₁~ K_nIs the assigned device N₁~ N_nAccepts and records the setting of the contents of the temporary control (fail-safe control) for the device N assigned to itself when an abnormality of the store server 4 is detected₁~ N_nExecute temporary control for.
[0026]
Store server 4 is a device terminal K₁~ K_nBased on the data entered from the device N₁~ N_nIs monitored and controlled, and data is notified to the center server 6. The router 5 realizes communication between the store server 4 and the outside via a network 7 such as the Internet.
[0027]
In the embodiment, the other stores 2 and 3 have the same configuration as that of the store 1, and are not shown in FIG. However, the devices provided in the stores 2 and 3 may be different from those in the store 1.
[0028]
The service providing company 8 includes a router 9 and a center server 6. The router 9 realizes communication between the center server 6 and the outside via the network 7.
[0029]
The client machine 11 provided in the device management company 10 and the client machine 13 provided in the store management company 12 receive a data distribution service from the service providing company 8 via routers 14 and 15, respectively. For example, the client machine 11 notifies the occurrence of an abnormality by an abnormality display device such as the light 16 when the abnormality occurs. Further, the client machine 11 displays the prediction result of the device failure.
[0030]
The remote monitoring control device 20 carried by the facility maintenance personnel in the stores 1, 2, 3 is connected to the network 7 via the router 21 as necessary. Then, the facility maintenance staff operates this remote monitoring control device 20 and sends a monitoring change request for control status of each device (facility) to the store server 4 to the center server 6.
[0031]
FIG. 3 is a block diagram illustrating an example of the configuration of the store server 4.
The store server 4 includes a terminal communication function 17, a center communication function 18, and a store management function 19.
[0032]
The terminal communication function 17 is connected to the device terminal K by a local communication driver 17a and a local interface 17b.₁~ K_nTo communicate with. The center communication function 18 includes a center communication module 18a, a router control function 18b, and a function 18c for managing the settings of the router 5 in order to communicate with the center server 6 via the router 5.
[0033]
The center communication function 18 includes an external installation function 18d for performing installation (software replacement of the store server 4) such as the center server 6, a shutdown process 18e, an energy saving parameter management (parameter change of energy saving algorithm) function 18f, and a terminal. Parameter management (parameter change of standard algorithm (fail safe mode)) function 18g, remote control management (execution of relay RO output of terminal remotely) function 18h, abnormal setting management (temperature, humidity, etc. of upper and lower limit values of equipment state) Change) function 18i.
[0034]
The store management function 19 has an energy saving control function 19a and an abnormality monitoring function 19b. Energy saving control function 19a includes common processing 19c for energy saving control, refrigerator control 19d for energy saving control of showcase / refrigerator, dew-proof heater control 19e for reachin / walk-in door, defrost heater control 19f for showcase , Oden warmer control, AQ (air quality) control 19g for removing odors such as fryer with ventilation fan, energy saving control 19h for commercial refrigerator, PVM control 19i for controlling air conditioner based on the aforementioned PMV value, cooperative control 19j Etc. are executed in parallel.
[0035]
The abnormality monitoring function 19b is a common process 19k for equipment abnormality monitoring, for example, equipment abnormality detection 19l such as a commercial freezer, refrigerator, freezer, air conditioner, etc. The failure prediction 19m is executed based on the transition of the current state or the transition of the current state of the air conditioner.
[0036]
The specific operation of each part in the store management system having such a configuration will be described in order.
[0037]
(A) Information (data) collection and information transmission (FIGS. 4 and 5)
Each terminal K of the store 1 normally functions as a relay that transmits information (data) from the device (equipment) N of the store to the store server 4 and periodically reports the current value of the information (data). . The store server 4 manages these current values as codes by ID for each point indicating the information type, and a notification format having a predetermined length as shown in FIG. 5 as one piece of information on the current value of each point, point failure, and presence / absence of abnormality. Incorporate into the data.
[0038]
The current value of the point in the notification format data is obtained by encoding the acquired value, up to n abnormal codes are stored in the case of a point failure, and the characteristics of the acquired data are encoded if there is an abnormality. In the case of a point failure, when no abnormality has occurred, a fixed length is achieved by filling with a code “99”.
[0039]
The data in the notification format data encoded by the store server 4 has the same data table in the center server 6. Therefore, the center server 6 can convert the code included in the notification format data received from the store server 4 into a name and provide it to the user.
[0040]
The data array of each point in the notification format data is fixed. By adding a store ID to the notification format data, the center server 6 can recognize from which store 1 the data is from the store ID.
[0041]
Acquiring all the information of the store server 4 having a scale of several hundred to thousands in the center server 6 increases the load on the center server 6. For this reason, the information (data) per store is limited only to the current value and alarm of the store equipment shown in the notification format data of FIG.
[0042]
Further, the store server 4 and the center server 6 are connected by a dedicated line formed in the network 7, and data cannot be acquired or updated directly from the outside to the store server 4.
[0043]
The center server 6 performs monitoring, aggregation, and control based on various data such as the current value of information (data) input from the store server 4. The center server 6 classifies and accumulates various data as current value data, control data, abnormality data, and the like, and is registered in the client machine 11 of the device management company 10 and the client machine 13 of the store management company 12. A data distribution service that publishes necessary data according to the level.
[0044]
FIG. 4 is a flowchart showing operations of the store server 4 and the center server 6.
In the store server 4, data (information) from each facility is filed (A1), the point (information type) of each data (information) is confirmed (A2), registered in the notification format data (A3), and each data The presence / absence of (information) is determined and registered (A4). When a predetermined time such as 1 minute elapses (A5), the created notification format data is transmitted to the center server 6 (A6).
[0045]
The center server 6 checks whether the notification format data has been received from the store server 4 (B1), and if there is no response for a certain period of time (B2), the warning of the store server 4 is registered (B4). If there is a response, each store data (information) is monitored based on the received notification format data (B3), a state list is created (B5), and time-series trend data is collected (B6). If there is an abnormality (B7), a warning is registered (B8).
[0046]
If a warning is registered (B9), a warning list is created (B10), the warning list is displayed and output, and transmitted to the client machine 13 of the device management company (registrant) 10. Also, an alarm mail is issued to a person registered in advance in the center server 6 (B11).
[0047]
(B) Monitoring control for the store server of the remote monitoring control device (FIGS. 6 and 7) As described above, the space between the store server 4 and the center server 6 is formed in the network 7 as shown in FIG. It is connected by a line, and data cannot be acquired or updated directly from the outside to the store server 4.
[0048]
Therefore, as shown in FIG. 6, in order to obtain detailed information of the store server 4 using the remote monitoring control device 20, the facility maintenance staff communicates with the store server 4 of the store via the center server 6. Data acquisition and update are performed.
[0049]
As shown in the flowchart of FIG. 7, the facility maintenance staff first operates his / her remote monitoring and control apparatus 20 and inputs a request for acquiring a registrant name, password and information (data) to the center server 6. (C1). The center server 6 monitors the request from the remote monitoring control device 20 (D1) and receives the request (D2). When the request is from the permitted remote monitoring control device 20 (D3), the center server 6 It transmits to the store server 4 (D4).
[0050]
The store server 4 stands by (E1), and when a request is received from the center server 6 (E2), the registrant name is confirmed (E3), and the data specified by the request is updated or read (E4). . Then, the center server 6 is notified of the registrant, the updated or read file name, and the time (E5). When the registrant name cannot be confirmed (E3), the center server 6 is notified of the failure of data update or reading (E6).
[0051]
When the center server 6 receives the result of the data update or reading from the store server 4 (D5), the center server 6 notifies the result of the data update or reading to the remote monitoring control device 20 (D6).
After receiving the data update or read result from the center server 6 after waiting (C2) (C3), the remote monitoring control device 20 acquires store data from the update result (C4), and monitors / restores the store data. Edit is executed (C5). When editing is completed (C6), the changer is registered as necessary (C7), and a store data update request is transmitted to the center server 6 (C8).
[0052]
(C) Energy-saving operation performed by equipment (equipment) (Figs. 8 to 11)
Equipment (equipment N) that requires temperature control, such as showcases and air conditioners, operates based on the energy-saving control mode that operates based on the energy-saving algorithm set in the store server 4 and the reference algorithm that is set for itself. And a reference control mode for performing
[0053]
In the reference algorithm, as shown in FIG. 8B, the ON temperature L that is the control execution set value is set at −2 ° C. of the center temperature that is the target temperature, and the control stop set value is at + 2 ° C. of the center temperature. The OFF temperature H is set. The temperature range of 4 ° C. from the ON temperature L to the OFF temperature H is the hysteresis range.
[0054]
On the other hand, in the energy saving algorithm, as shown in FIG. 9B, the hysteresis range (0.5 ° C. to 1 ° C.) is set narrower than the hysteresis range (4 ° C.) of the reference algorithm, and this hysteresis range Is set near the ON temperature L of the reference algorithm.
[0055]
That is, conventionally, according to the reference algorithm shown in FIG. 8B, the facility (equipment) opens the solenoid valve when the detected temperature exceeds the OFF temperature H, and when the temperature falls below the ON temperature L. The process of closing the solenoid valve is mechanically performed. Usually, the hysteresis range is set to ± 2 ° C. around the target temperature. Therefore, although the average temperature was the target temperature, the upper and lower limits of the internal temperature are large, but it is not good in terms of quality maintenance, and all the solenoid valves handled by the refrigerator Since the operation of the refrigerator does not stop unless is closed, the effect is low from the viewpoint of energy saving.
[0056]
Therefore, in the embodiment, the energy saving algorithm shown in FIG. 9B is adopted in the store server 4 in addition to the reference algorithm for equipment (equipment), and the lower limit value is based on the internal temperature obtained from each showcase. Or a hysteresis range of [lower limit value to (lower limit value + 0.5 ° C.)] is set. This hysteresis range of the lower limit value + 0.5 ° C. is used to prevent the electromagnetic valve from fluttering due to minute fluctuations in temperature.
[0057]
By setting the target temperature and an intermediate value of normal machine control, for example, “target temperature – 1 ° C”, the solenoid valve can be quickly closed and the ON / OFF width (hysteresis range) can be increased. By narrowing or eliminating, it is possible to eliminate the temperature variation in each solenoid valve, and it is possible to generate a state where all the solenoid valves are closed. As a result, the stop time of the refrigerator is kept long, and an energy saving effect is generated.
[0058]
In order to automatically switch between the energy saving control mode in which the operation is performed based on the energy saving algorithm and the reference control mode in which the operation is performed based on the reference algorithm set by itself, FIG. 8 (a) and FIG. 9 (b). As shown, in the terminal 22 (K) of the device 23 (N) that requires temperature control, such as a showcase or an air conditioner, the store server 4 sets the solenoid valve of the device 23 (N) based on the energy saving algorithm. Due to the occurrence of abnormality in the relay 22a that is controlled on / off in software and the terminal of the store server 4 or the temperature sensor, the adoption of the energy saving algorithm is forcibly stopped and the operation is performed based on the reference algorithm. A fail-safe relay 22b for switching to the reference control mode is incorporated.
[0059]
The energy saving control mode of the energy saving algorithm is executed only in a state where no abnormality has occurred in the store server 4 or the temperature sensor terminal. In other cases, the reference control mode of the reference algorithm is executed.
[0060]
FIG. 8A shows a state in which the reference control mode of the reference algorithm is executed. In this case, the thermo SW 23a of the device 23 (N) controls the electromagnetic valve by the operation shown in FIG. 8 (b). FIG. 9A shows a state in which the energy saving control mode of the energy saving algorithm is executed. In this case, the thermo SW 23a of the device 23 (N) does not operate.
[0061]
The state in which an abnormality has occurred in the store server 4 or the terminal K of the temperature sensor is
When the store server 4 cannot acquire the temperature normally due to a terminal failure, for example, when the temperature deviates from the temperature range that can be acquired by the sensor or an abnormality occurs due to failure prediction (FIG. 10),
When the store server 4 breaks down, for example, when the store server goes down or the communication line between the store server and the terminal is disconnected (FIG. 11),
Etc.
[0062]
In the process of the store server 4 in FIG. 10, the internal temperature determination process is performed (F1), the temperature control is performed on each facility in the energy saving control mode (F2), the temperature abnormal tick is performed (F3), and the abnormality is detected. If there is no error (F4), the fail-safe output for the related terminal 22 (K) is canceled (F5), and the no abnormality flag is set (F5). Then, the process proceeds to F11.
[0063]
If there is an abnormality (F4), sensor abnormality processing is performed (F7), a cooling machine operation command is output (F8), failsafe output is performed for the related terminal 22 (K) (F9), and the flag is abnormal Set (F10). At this point, the reference control mode of the reference algorithm is executed.
[0064]
At F11, temperature control is performed for each facility in the energy saving control mode. If the flag is abnormal, the temperature control in the energy saving control mode is stopped (F14). If the flag is normal, the energy is saved. The control mode is continued (F13). And it returns to F1.
[0065]
In the process of the center server 6 in FIG. 11, when a monitoring request is sent to the store (J1) and a response signal such as notification format data is not input from the store server 4 (J2), the store server 4 is abnormal. Judgment is made (J3), and an abnormality is displayed (J4).
[0066]
In the processing of the store server 4, the I / F with the center server 6 is monitored (G1), the signal input from the center server 6 is waited (G2), and if there is a signal input (G3), it responds to the monitoring request. A response signal such as notification format data is transmitted to the center server 6 (G4). Further, the store server 4 sends a transmission request for the reference control mode (fail safe mode) execution flag to the terminal 22 (K) via the I / F with the terminal 22 (K) of the facility (equipment) 23 (N) (G5). ) (G6), and when the reference control mode (fail safe mode) execution flag is ON (G7), the communication abnormality occurrence is added to the abnormality history stored in its own memory (G8). And the cancellation | release (OFF) request | requirement of the reference | standard control mode (fail safe mode) execution flag is sent to the terminal 22 (K) (G9).
[0067]
In the processing of the terminal 22 (K) of the facility (equipment) 23 (N), it waits for a status (flag state) information request from the store server 4 to be input (H1), and when a certain time has passed (H2), the store It is determined that an abnormality has occurred in the server 4, and the reference control mode (fail safe mode) is executed (H3). Then, the reference control mode (fail safe mode) execution flag is set to ON (H4).
[0068]
When the status (flag state) information request is input (H5), the setting state of the reference control mode (fail safe mode) execution flag is transmitted to the store server 4 (H6). In addition, when a request for canceling (OFF) the reference control mode (fail safe mode) execution flag from the store server 4 is input, the reference control mode (fail safe mode) execution flag is canceled (OFF). If a request for canceling (OFF) the reference control mode (fail safe mode) execution flag from the store server 4 is not input (H7), it is determined that an abnormality has occurred in the store server 4, and the reference control mode (fail safe mode) is set. Execute (H8).
[0069]
(D) Energy saving operation using a plurality of facilities (equipment) (FIGS. 12 to 14)
Factors that influence the indoor temperature of the store 1 include the outdoor temperature, the air conditioner, and the cool air of the showcase. The outdoor temperature also affects the refrigerator that performs heat exchange of the air conditioner and the showcase. Therefore, the ventilation fan is usually installed for the purpose of removing smoke and odor filled in the vicinity, but it is also used as an apparatus for cooling the outside air.
[0070]
FIG. 12 is a schematic diagram showing a portion related to an element that affects the indoor temperature of the store. A ventilation fan 24b and an odor sensor 25a are connected to the terminal K through an ON / OFF SW 24a. An indoor temperature / humidity sensor 25b and an outdoor temperature sensor 25c are connected to another terminal K, and an air conditioner 26 is connected to another terminal K. The store server 4 collects information (environmental state) of each sensor and the operation mode of the air conditioner 26, and performs ON / OFF control of the ventilation fan 24b and the air conditioner 26.
[0071]
In the outdoor air cooling, since heat flows from higher to lower, when the room temperature is higher than the outdoor temperature, room cooling using the outside air is performed. However, the operation of the ventilation fan 24b at the time of cooling is performed by raising the threshold of odor from the normal level so that the operation by the odor is not performed at the time of outside air cooling. This is to avoid increasing the burden on the air conditioner 26 due to the outside air flowing in from the ventilation fan 24b. When the air conditioner 26 is in another operation mode such as heating or when the operation is stopped, the operation by the temperature difference from the outside air is not performed because the outside air cooling function is unnecessary.
[0072]
FIG. 13 shows the above-described control contents of the ventilating fan 24b when the air conditioner 26 is in the “cooling” and “others such as heating” operation modes.
[0073]
As shown in the flowchart of FIG. 14, the store server 4 controls the operation of the ventilation fan 24b.
When the air conditioner 26 is in the “cooling operation” (L1) and there is a set temperature difference that enables the outdoor air cooling by comparing the outdoor temperature and the indoor temperature (L2), the ventilation fan 24b is operated (L3). .
[0074]
Further, when the odor sensor information is not a failure and is in a range determined to be a normal value (for example, a range of 5% to 80%) (L4), and when the odor sensor value exceeds a set value (L20), the ventilation fan 24b is operated (L21). When the value of the odor sensor is less than the set value (L20), the ventilation fan 24b is stopped (L22).
When the odor sensor is determined to be abnormal by the failure prediction function (L4), the ventilation fan 24b is operated by a timer at regular intervals (L5). That is, when the ON condition indicated by L2 described above is satisfied (L6), the ventilation fan 24b is activated (L8) and the ON timer is activated (L9). If the ON condition indicated by L2 is not satisfied (L6), the ventilation fan 24b is stopped (L14), and the OFF timer is started (L15).
As described above, every time the timer elapses, the ON condition is checked, and the ventilation fan 24b is controlled to be ON / OFF.
[0075]
In this way, by switching the operation of the ventilation fan 24b, which is a conventional human operation, to the operation by the sensor, the continuous operation of the ventilation fan 24b more than necessary is avoided, and an energy saving effect is obtained.
[0076]
(E) Energy-saving operation using human thermal sensation index (Figs. 15 and 16)
The air conditioner and the refrigerator at the time of cooling cool the temperature in the room and the interior by the evaporator, and release the acquired heat from the condenser. Therefore, the burden on the evaporator increases when the indoor temperature is high, and the burden on the condenser increases when the outdoor temperature is high.
[0077]
Air-conditioners and refrigerators with the same principle are used for cooling, but in terms of heat conversion efficiency based on power consumption, if the room temperature is low, the refrigerator is more efficient and the room temperature If the air pressure exceeds a certain value, the air conditioner has the characteristic of improving efficiency. As shown in FIG. 15, the power consumption branch temperature at which the air conditioner is cooled and the efficiency of the refrigerator is reversed depends on the outdoor temperature.
[0078]
The power consumption branch temperature exists in stores installed outdoors, but does not exist in tenant stores in buildings that are not exposed to direct sunlight. Furthermore, since the power consumption is not affected even if the room temperature increases, control based on the power consumption branch temperature is not performed. In this case, PMV (Predicted Mean Vote prediction), which is a kind of target human thermal sensation index, is not performed. The average answer) value is compared with the current PMV value, and control is performed to change the set temperature of the air conditioner.
[0079]
The calculation method of PMV as a human thermal sensation index uses a generally known calculation described in Patent Document 1, and obtains the PMV1 value based on the temperature in the store and the air conditioner. Calculated by summation with PMV2 based on measured temperature and relative humidity.
[0080]
PMV = ψ (t) PMV1 + (1-ψ (t)) PMV2
ψ: Time weighting factor
PMV1 = a0 + a1 x TA + a2 x TR + a3 x RH + a4 x TR x TR + a5 x TR x RH + a6 x TR x RH
PMV2 = a0 + a1 x TA + a2 x TR + a3 x RHA + a4 x TA x TR + a5 x TA x RHA + a6 x TR x RHA
However,
Ta: Acquired temperature in air conditioner
TA: Normalized temperature acquired by air conditioner = Ta ÷ 30
Tr: Indoor temperature
TR: Normalized room temperature = Tr ÷ 30
Rh: Indoor humidity
RH: Normalized room temperature = Rh ÷ 80
Rha: relative humidity
RHA: Normalized value of relative temperature = Rha ÷ 80
a0 to a6: Environmental parameters
The store server 4 performs processing for reducing the burden on the refrigerator according to the flowchart of FIG. The process of reducing the burden on the refrigerator is realized by changing the set temperature of the air conditioner.
[0081]
When the air conditioner is not in the indoor tenant (M1), first, the outdoor temperature is acquired (M2), and the thermal branch point temperature is obtained from the outdoor temperature (M3). When the power consumption of the air conditioner is higher than the branch point temperature less than the power consumption of the refrigerator (M4), the refrigerator is stopped for a certain period of time (M5, M6), and the room temperature is lowered by lowering the set temperature of the air conditioner To lower.
[0082]
Specifically, every time the set temperature of the air conditioner is lowered by 1 ° C. (M10), the stop time of the refrigerator is monitored (M7), and if there is an effect (M8), the temperature is further lowered. When there is no change in the stop time of the refrigerator or when the situation deteriorates such that the stop time becomes longer (M8), a process is performed in which the set temperature is not changed (M9).
[0083]
In M4, when the indoor temperature is below the branch point, and when the indoor tenant and the air conditioner are in the heating operation (M1), the set temperature of the air conditioner is acquired (M11), and the indoor temperature, humidity, Based on the suction temperature of the air conditioner, the PMV value as a human thermal sensation index is calculated by the above-described formula (M12).
[0084]
Then, the air conditioner is divided into a cooling operation case and a heating operation case (M13), and the set temperature of the air conditioner is set so that the calculated PMV value approaches the target PMV value defined in the store server 4. It is changed sequentially (M17, M19, M20).
[0085]
(F) Information acquisition processing using statistical values (FIGS. 17 and 18)
The store server 4 of the store 1 obtains statistical values for a certain period of information about each facility (equipment M) acquired via each terminal K, and obtains information and statistical values regarding each facility acquired via each terminal K. By comparing and comparing, it is determined whether there is an abnormality in the acquired information.
[0086]
That is, at the time of delivery of store equipment (equipment M), the average value, standard deviation, and judgment value for each month are defined by default. The average value μ and the standard deviation σ are generally given by the following equations.
[0087]
σ = [Σ (Xi−μ)²/ N]^1/2
± 1σ with respect to the average value μ is 68% of the whole data (information), ± 2σ is 95% of the whole, and ± 3σ is 99.73% of the whole.
[0088]
This average value μ ± xσ (x is a set value, for example, 1, 1.5 and 2 are defined as threshold values for light, medium and serious failure) is defined as the upper and lower limit values of the abnormality, and the average value μ On the other hand, it is defined as a minor failure when it deviates ± 1σ, a medium failure when it deviates ± 1.5σ from the average value, and a serious failure when it deviates ± 2σ or more from the average value μ.
[0089]
As shown in FIG. 17, the store server 4 has a daily average of data such as internal temperature, indoor temperature, humidity, refrigerator high pressure, low pressure, power consumption of each equipment, change rate of internal temperature, discharge temperature-outside air. A daily average of values indicating store facility characteristics such as temperature is stored and retained.
[0090]
Then, the store server 4 takes in the acquired data (information) when the elapsed time (P1) and the acquisition condition (P2) from the delivery of the device or sensor as the transmission source of the data (information) to be acquired are satisfied, It stores and holds as the above-mentioned daily average (P4). When the monthly change occurs (P5), the average value μ and standard deviation σ of the month are obtained from the above-mentioned daily averages (P8, P9).
[0091]
Each facility in the store shows characteristics that differ depending on the store environment and season, even if the performance is the same, so data is acquired for one year after delivery, the data collection function is stopped after one year, and the subsequent judgment Use as a value.
[0092]
Further, the store server 4 performs an abnormality determination process on the acquired data (information) according to the flowchart shown in FIG.
When the acquisition condition of the data (information) to be acquired is satisfied (Q1), the acquired data (information) is captured (Q3), and compared with the average value μ and standard deviation σ of the current month (Q4, Q5). When the data (information) does not deviate from ± 1σ with respect to the average value μ, there is no failure (Q7). When the data (information) deviates from ± 1σ with respect to the average value μ, the minor failure (Q6) becomes the average value. On the other hand, when it deviates from ± 1.5σ, it is determined as a medium failure (Q9), and when it deviates by ± 2σ or more with respect to the average value μ, it is determined as a major failure (Q10).
[0093]
(G) Energy saving control using natural energy (Figs. 19 and 20)
In the store 1, as shown in FIG. 19, a power generation device 27 using natural energy such as a solar battery and wind power generation, a power storage device 31, a power reception device 28 to which commercial power is supplied from the outside, and power switching The part 32 is incorporated.
[0094]
The commercial power received by the power receiving device 28 is converted into direct current by the AC / DC converter 29 and input to the charge controller 30 via the relay contact 32, and finally, the store server 4, terminal K, equipment (equipment N) ). Further, the power storage device 31 is charged.
On the other hand, the DC power generated by the power generation device 27 is input to the charge controller 30 via the contact 33 of the relay, and finally the power storage device 31 is charged.
[0095]
When the terminal K detects a power failure of the commercial power input to the charge controller 30, the terminal K opens the relay contact 32, and stores the power generated by the power generation device 27 and the power stored in the power storage device 31 in the store server 4, the terminal K, supply to equipment (equipment).
[0096]
In addition, the timing at which the store server 4, the terminal K, and the equipment (facility) switch the supply power from the power generated by the power generation device 27 and the power stored in the power storage device 31 to the original commercial power supply after the power failure recovery, As shown in FIG. 20, when the voltage drop of the charge controller 30 from the terminal K is received (R2). Thereby, the energy saving effect is further improved by not receiving the commercial power supply more than necessary.
[0097]
【The invention's effect】
As described above, in the store management system of the present invention, information related to each facility (equipment) provided in each store is centrally managed by the store server and created and transmitted to the center server as notification format data. . Therefore, it is possible to efficiently operate the facilities of each store. Furthermore, the energy-saving effect in each store can also be improved.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a schematic configuration of a store management system according to an embodiment of the present invention.
FIG. 2 is a specific block diagram of a store in the store management system.
FIG. 3 is a block diagram showing an example of the configuration of a store server in a store of the store management system
FIG. 4 is a flowchart showing operations of a store server and a center server of the store management system.
FIG. 5 is a diagram showing notification format data transmitted from the store server to the center server.
FIG. 6 is a schematic diagram showing the monitoring control operation for the store server of the remote monitoring control device of the store management system;
FIG. 7 is a flowchart showing operations of a store server, a center server, and a remote monitoring control device of the store management system.
FIG. 8 is a schematic diagram showing a terminal configuration and a reference algorithm configuration of the store management system
FIG. 9 is a schematic diagram showing the terminal configuration and the energy saving algorithm configuration of the store management system.
FIG. 10 is a flowchart showing the operation of the store server of the store management system.
FIG. 11 is a flowchart showing operations of a store server, a center server, and a terminal of the store management system.
FIG. 12 is a block diagram illustrating an example of the configuration of a store server, a terminal, and a device in a store of the store management system
FIG. 13 is a diagram showing an air conditioning operation mode of an air conditioner in a store of the store management system
FIG. 14 is a flowchart showing the operation of the store server of the store management system.
FIG. 15 is a diagram showing a power consumption branch temperature in an air conditioner and a refrigerator in a store of the store management system
FIG. 16 is a flowchart showing the operation of the store server of the store management system;
FIG. 17 is a flowchart showing the operation of the store server of the same store management system.
FIG. 18 is a flowchart showing the operation of the store server of the same store management system.
FIG. 19 is a block diagram showing an example of the configuration of a power feeding part in a store of the store management system
FIG. 20 is a flowchart showing the operation of the power feeding part in the store of the store management system.
[Explanation of symbols]
1, 2, 3 ... Store, 4 ... Store server, 6 ... Center server, 7 ... Network, 20 ... Remote monitoring and control device, 27 ... Power generation device, 31 ... Power storage device, K ... Terminal, N ... Equipment (facility)

Claims (7)

A plurality of store servers that are provided in each store and obtain information about each facility in the store via each terminal and monitor and control each facility, and are connected to the store server of each store via a network. In a store management system comprising a center server that manages information of each store obtained from the store server, and a remote monitoring control device that is connected to the network and remotely monitors and controls the control state of each facility of each store server,
Each facility of each store has an energy saving control mode for driving based on an energy saving algorithm set in a store server for monitoring and controlling itself and a reference control mode for driving based on a reference algorithm set for itself. Have
Usually, it operates in the energy-saving control mode, and when the store server abnormality or terminal abnormality occurs, the operation is changed to the self-control mode,
Each store server manages each point indicating an information type as a code based on identification information, and creates and generates a notification format data having a predetermined length as one piece of information on each point's current value, point failure, and presence / absence of abnormality. Having information transmission means for transmitting to the center server in a cycle;
The said center server manages the state of each store based on the notification format data received from each said store server with a fixed period, The store management system characterized by the above-mentioned. The notification format data is transmitted via a dedicated line formed on the network, and the remote monitoring and control device sends a monitoring change request for control status to each facility that specifies the store server that has been operated and input via the network. Sent to the center server,
2. The store management system according to claim 1, wherein the center server transmits the received control change monitoring request for each facility to the specified store server via the dedicated line. In the energy saving algorithm, the hysteresis range between the control execution set value and the control stop set value is set narrower than the hysteresis range of the reference algorithm, and this hysteresis range is set near the control execution set value of the reference algorithm. The store management system according to claim 1, wherein: The store server detects a plurality of and a plurality of types of environmental conditions via each terminal from a plurality of sensors installed inside and outside the store,
The energy saving algorithm controls the operation of a plurality of types of equipment based on a plurality of detected and a plurality of types of environmental conditions, and controls one or a plurality of types of environmental conditions in a store to a target environmental condition. The store management system according to claim 1 , wherein the store management system is provided. The store server detects a plurality of and a plurality of types of environmental conditions via each terminal from a plurality of sensors installed inside and outside the store,
The energy-saving algorithm is to calculate a human thermal sensation index from a plurality of detected environmental conditions and a plurality of types of environmental conditions, and to control operation of equipment related to the environmental condition based on the human thermal sensation index. The store management system according to claim 3.   Each store server obtains a statistical value in a certain period of information about each piece of equipment acquired through each terminal, and compares and contrasts the information about each piece of equipment acquired through each terminal with the above statistical value. The store management system according to claim 1, wherein presence / absence of abnormality of the acquired information is determined. Each store includes a power generation device using natural energy, a power storage device, a power receiving device to which commercial power is supplied from the outside, a power failure detection means for detecting a power failure of the commercial power supply, and the power failure detection means detects a power failure. In the period when the power is not supplied, the commercial power from the power receiving device is supplied to each facility, and the electric power generated by the power generation device is stored in the power storage device, and the power failure detection means detects a power failure. in, according to any one of the power stored in the power and the power storage device generated by the power device from claim 1, characterized in that a power switching unit for supplying the in each facility 6 Store management system.

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