JPS58106348A - Air conditioner controller - Google Patents

Abstract

PURPOSE:To facilitate the monitor of the alteration and controlling state of general data by providing a main control unit, a terminal control unit for locally controlling various air conditioners, and sub-control units for repeating the data transmission and reception with the main control unit and the terminal controller. CONSTITUTION:A main control unit MCT is connected to a terminal equipment TE such as a keyboard, a display unit or the like to be capable of transmitting and receiving data, and is connected via a common transmission line La to sub- controllers SCT1-SCTm and a monitoring sub-control unit SCT0. To the SCT1- SCTm are respectively connected terminal control units TCT11-TCTmn which are connected with local temperature sensor T, humidity sensor H, motor control valve MV or the like. Then, to the sub-control unit SCT0 are transmitted monitoring information except the air conditioner from a fire hazard monitoring unit FSU1, a power controller EPC and a generator controller GNC and the like, and the information is transmitted as data as required.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of an air conditioning control device used for a 9-piece control system in a building.

The conventional air conditioning control system consists of a central control unit using a computer, etc., and local converters distributed throughout the premises, and the central control unit operates based on data from each local converter. Judgment processing is performed, and the results are sent to the local converter to control the air conditioning equipment in each section.The control decisions are made all at once in the central control section, and the results are sent to the local converter to control the air conditioning equipment in each section. From 11K onwards, it became impossible to control all air conditioners.

In addition, the central controller and each local transducer are connected to each individual cloth*I.
Since the connection is made through a busbar or several busbars, the amount of wiring is extremely large, and the required wire material cost and wiring man-hour cost are high, and the configuration is not convenient due to the addition of local converters. It has four disadvantages, such as not being easy to change, and not being able to freely combine them due to the structure of the device.

The purpose of the present invention is to fundamentally solve the drawbacks of the conventional system by providing a main controller, a sub-controller, and a plurality of terminal controllers, and connecting the main controller and sub-controllers to a common transmission line. In addition to the regular connection system, the sub controller and each terminal controller are connected through individual transmission paths, and data transmission and reception between the main controller and each terminal controller is performed using the side-assigned aS. The main controller transmits and receives data to and from the connected terminal equipment, while each terminal controller VC performs control operations according to the transmitted and received data and the detection power of the local sensor. *
In addition, information other than the air conditioner, such as fire monitoring, power control, and generator control, is monitored by a monitoring sub-control 6, and this monitoring information is From the fact that it is given to each sub-controller as data,
The present invention provides an extremely effective air conditioning control device that controls four air conditioners using each of these pieces of information.

Hereinafter, the present invention will be explained in detail with reference to figures showing examples.

This is a block diagram of the entire configuration of Tuna IWJFi, main controller MO
? Terminal equipment such as keyboards and cathode ray tube displays!
The main controller MO! is connected to the main controller MO!, and data can be exchanged between them, allowing the operator to freely input data and output data to the operator. is a common transmission line [, a K to sub-controller 80'l'l, JIOT, and monitoring) side splitter m unit 80T.

is connected to each sub-control l! and transmits predetermined data thereto. It receives data from sat, ~sat,%got.

Further, the sub-controllers 80Tl to 80Tm each correspond to each transmission line Lb1 to LbmK, and various numbers of terminal controllers TO.
T, 1~TOTln%? '0'l'x, ~TOT■
, TOTvml~TOT! I! m, and relays data transmission and reception between these and the monarchy @@Mor as necessary, and each terminal controller TO', t-T
For OTHI & temperature cent T% as local senna
Humidity sensor H and fan motor FMO status contacts are connected, as well as motor control valve MY and electromagnetic switch M1 for controlling various air conditioners. Each terminal control giTOT, □~TOT ml is connected to Data transmission/reception with control 580T, ~80T, and each
Sen+jT%H detection force and fan motor FM
A control decision is made based on the status of the status contact of the motor valve MY%wffx? By sending control outputs to Ma, etc., each type of air theory machine is partially controlled.

Note that the monitoring sub-controller 80T has a configuration #E.
Fire supervision ljI shown in Figure 4! Monitoring information other than the air conditioner is provided from the device PIO, power control device PO, generator control device GNO, etc., and this information is transmitted as data as required.

Furthermore, TOT ■~10τ-Otori detects outside temperature and humidity data, as well as the temperature of cold and hot water supplied from the heat source.
There are data on them, from that TOT to other! 0
! The signal is transmitted to the computer and used as a so-called crowbar.

tlA2WJ is the main control device 0! As shown in the block diagram! Centered around Ikupu M*Tuna's processor OPU, fixed memory 10Mm, variable memory RAM, 1 transmission circuit? The processor OPUm executes instructions stored in advance in the fixed memory JIk#jloM, and transfers them to the transmission circuit TAX.

Sub-controller sat,~so〒,,,80? . and 0
The transmission/reception data JsP and the transmission/reception data I with the terminal equipment 1''l via the input J-7Ace X~ are accessed to the variable memory %V->M as required.

FIG. 3 shows the sub-control 1i! aO'l', ~80Tm,
aOT, Knoblock diagram], main control 11M0ff
'Similarly to 1 Pro Ryu Tuna 0 PIJ-, fixed memory lOMmb, town expense memory Om Ml and transmission circuit T
IXaBs! '1
,,? The main controller MO? and each terminal controller T
It relays data transmission and reception between OTl and ~rormn while accessing the variable memory memory aK of necessary data, or transmits monitoring information while accessing the variable memory IIM. It has become a thing.

FIG. 4ti, terminal controller T OTH1-T O'! '
Ql m s Fire monitoring device 11, power control device 1mPo
and the generator control product GNOO block diagram, which is also the same as the main control @MOT, Procera j OP U
Fixed memo centered around i! jROMt% variable memo 91A
Mi, transmission circuit TRX1 and ear 1l-7Xi XIF
41. I placed IFtI on the same side and connected these from mother @mUatK, but Progera! Pull/read only memory (del@gramable 1easl 0
nly Memory, ) Write method using %'J
A PROM is provided, and it is connected to the mother 1ll (Ill) via a writer (writing circuit) WILT for writing data to it, and data is accessed to the 1-pack memory sol IIOMK through this, and once written. The stored data is retained in the water container until it is erased by ultraviolet irradiation or electrical means.

In addition, the cute memo mlRAM ε has a large capacity of content connected to the power supply +YII, so even if the main power supply fails, the data stored in the variable memory mlRAM ε will not be lost for about 48 hours. What is the content? The same applies if a battery is used instead of Otm.

Note that the processor OPU@ executes instructions stored in the fixed memory ROMk, transmits and receives data to and from the sub-controllers 1 80 TX to 80Tm via the transmission circuit TRX1, and
Digital data input DI from each sensor and status contact via interface IFt, analog data input cam! The system receives and sends digital data output No. 0 and analog data output cam 0 to each control part, and stores the necessary data in the variable memory RAM 4.
I am accessing the site, but the one necessary data is written by the writer wit.
Write memory through? Fixedly stored in ROM,
Each data DI indicating the detection force of each sensor and status contact status, M! The processor 0FIQ makes control decisions according to the transmitted and received data, and then sends out each data output Do1 and 0 as a control output.

In addition, a small and portable set-up 15P8T with keyboard and character display can be connected as required via the interface IFt,
By operating the processor OPU, the contents of the variable memory Mt and the write memory FROM can be displayed, and data can be updated or new stored therein.

FIG. 5 shows the terminal controller TO? 11 to 'ro'r, is a comprehensive flowchart showing the control operation by the processor jOPJtc of n, and it is 1a system RTl by turning on the power or recovering from a power failure, 1 initialization l of initial state a setting.
After that, the test data is accessed to the variable memory RAM1, and it is determined whether the access is normal or not, whether or not the set value data is stored in the variable memory RAM4, and whether or not the data is stored in the variable memory RAM4. At the time of recovery, 1 self-diagnosis I is performed by determining whether the total number of bits of data stored in the variable memory 11AMt is the same as before the power outage, etc., and if there is %1 abnormality? ygs of l, transfers the contents of the write memory FROM and then writes the variable memory yH Ml.
1J such as storing it in new@! In addition to performing regular countermeasures, 1 data transmission/reception IK, fine split leg 80 T, ~
It notifies the controller MOT of the occurrence of an abnormality via 80 Tm, receives necessary data from the main controller MOT, and stores it in the variable memory IJRAMI.

1 Abnormal foot? If r is NO, perform digital data input % DI import l and analog data input 1 m ■ import l, and store them in the variable memory AMI. Level control 1%
Tortoise upper and lower limit monitoring l-optimal starting control〃, 1 power-saving operation control I,
and section 19 control l - fire control 1, etc., and according to these results, perform digital data output %Do sending 11 analog data output note om', and then
! 11 whether or not there is! Judging by check l, 1P8 work? If l is No, the process immediately moves to data transmission/reception l, but depending on this Ylll, the data O sending button for the setting device ps'r K and the data storage power from the setting device PIIT are activated. Against Day! After performing the process 1, one data transmission/reception is performed, each data in the required state is transmitted, and the received data is stored in the variable memory 1'MtK, and the above operations are repeated.

Figure 6 shows g! 1 time schedule control IK of 5 diagrams showing the ON/OFF control of the power to the hook machine and the corresponding temperature control status.
Based on the above, turn on the power to the air conditioner shown in Figure 6 T8.
, OFF conditions are set, and the use start time ts and use end time t of a specific part of the premises are set.

Turning on the power is permitted only at and O-seki.

That is, as shown in the 7th EK%I time schedule control IO flowchart, the weekly program is stored in the variable memory RAMt from the time schedule reading time check lK. The use start time im and the use end time t are read out, and the processor 0 de U>
Check the time measured by the clock configured in 0 to 11 and the power switch, and the result of this is the %ON time zone? I's Yll
If so, perform -time flag set I and set the %%ON time period? If l is No, immediately perform a 'time flag reset l.

Note that the clock in the processor 0PUI is controlled by the main controller MO? The time is calibrated by one data transmission/reception lK with.

FIG. 8 is a 70-chart of the Sagishi bell system #l, and shows the predetermined heavy eta demand levels for the terminal controller TOT, , TOT, and the like.

It is determined according to the power consumption situation, the operation status of the emergency generator that generates $-ff at the time of a power outage, and the situation such as recovery from a power outage: A comparison is made with the 2ff end level, and the sub-controller 80 for **! . If the own demand level is low, the air conditioner IaO rotation is stopped, even if the demand level is given from the sub-controllers 80T to 10Tn.

Also, Ko! The power consumption level and demand level are divided into levels according to the power consumption situation, those when the power is restored after a power outage, and those when the generator is running.

The level comparison described above is performed for each condition.

In other words, in Figure 8, is there one power outage? If l is NO, a level comparison corresponding to the power consumption situation is made from 1 power command level > power demand level lK, and if this is Y, the level flag is immediately reset r if the air conditioner is in operation. On the other hand, when 't7J near ff and power demand level I is NO, power outage is interrupted! !
A level comparison is made when the power outage side is restored at
If the number is 1 time schedule, the time flag shown in FIG. 7 is checked using the level flag set IK, and the level bladder is set to turn on the air conditioner.

Oh, there's a power outage? For Yla of l, % power generation 11:y-v
End level ≧ Generator de! From the command level IK, the level comparison between power generation and operation is made, and according to this IK, if it is in operation, level 7 Ladder reset 11 According to this NOK, if it is 1 time schedule construction time, it will shift to level GAG+IT I do.

In addition, since these are performed for each control item, 1 total control JJ is completed? The above operations are repeated until l becomes Y8.

FIG. 9 is a flowchart of -up/down@monitoring I;
Alarm upper limit value T in 11 degree control situation TO shown in Figure IIE6
Irises and warning Shimokumafu! If the measured value Tp is sent to the main controller MOT, data indicating an alarm is sent to the main controller MOT.

In other words, if the 1st power ON'ii'# of the empty W4 root is Ylg, then the optimum start morning time t shown in FIG. 6 has passed the unstable period of 1st grade? Assuming ygs of I, f @ upper limit value T, mu and lower limit value TL, which are stored in advance in variable memory lJiAM1, and iit sensor! Actual room temperature value T
p by 'Tp>T*h'%%Tp<TLm', and these Te1lK and 1-7 lag set
In addition, a % alarm is sent to the main controller MOTK by data transmission, but these numbers are 1.
Reset the alarm flag l and send a recovery message.

In addition, in Figure 96 and Figure 9, the indoor Ill swelling measured value p is targeted, but in addition to this, various physical quantities required such as indoor humidity vertical and pressure and flow rate of each part of the air conditioner are applied. be able to.

#! Figure 10 is a flowchart of %'jl proper start control l, in which the use start time t of a specific part of the premises, the previously determined start time t,...! 2! Start the Koma machine and check the room temperature temperature T.
The purpose of the precooling target value T0 is to reach the preheating target value Tp1y at the time t when p is used.

In other words, 1 of the 9-piece machines has not started? Assuming l is ygs, 1 driving time period? Judging l by the time flag in Figure 7, if this is NO, town expense memo IJR
Based on the weekly program and actual operating data within AMl, and based on how many days the air conditioner was not running.
The company performs the correction process 1, determines the correction coefficient, and then performs the 1-start time meter 21.

Note that the starting time t P s is the actual measured room temperature at the time of starting.
Pll, if the predicted value of the room fIA condensation coefficient determined according to the indoor thermal conditions is convex, and the correction coefficient is X for the first day off and dawn, then
It is shown by the following formula.

(During heating) Here, K is the number of consecutive holidays, and K' is a set coefficient (for example, about 1.5), then it is given by the following formula, and ' is set in advance, Q. Also, room temperature change coefficient is the actually measured room temperature change coefficient △ on that day, and the next day's child side room temperature change coefficient 1 (j +
1 is calculated and correction is performed by the learning side #.

and α is a coefficient.

After calculating the starting time t p a by calculating the equations (1) to (3) using the Sagi starting time hand calculation l, the processor '
Time measurement by the clock circuit in the FOPU premises, starting time tp,
Comparison is made with the turtle starting time? If I becomes ygs,
1 start flag set l, the start time t9. Tonatsu Kukoto holds. 1 driving time again? At yIis of I, the turtle start flag reset I is performed.

However, it is also optional for the dispatcher to carry out the optimum stop control disclosed in "Optimum Control Method for Air Conditioners" (Special SI 1987-130741) K.

FIG. 11 is a 70-chart of the 1st section w violation control l, which causes the 11i1-sp of FIG. 6 to be performed.

In other words, the driving hours of the Mozusagi time schedule? Judging by the time flag, if this becomes Yls, it is necessary to prevent the walls of the early morning building room from entering the KFII phase before the KFII level is sufficiently reached. Terminal controller TO? ■ Has the offset period t, determined for each TOTmB, elapsed since the start time? Judging from llIC, 1 from this y+eg K
New Nykuru start time? After determining l, if this is Y-1, ■ Check the detection position of the expansion sensor, and the actual measured value Tp is the cooling permissible normal TAg and the heating permissible value! Is the temperature between the room and the room temperature within the allowable range? Judging from IK, this is YIs
If so, reset the power saving flag l, do not start the aircraft, and set each cycle time t@l~ in Figure 6.
The OFF period t, which determines the OFF period ytl to tOFνn during t and n, is intended to be used when other air conditioners are This is because the start times of the cycle times are set so that they do not almost match.

Also, 1 new fickle time start time? Pigeon 11 with l no.
Bushi Mitsura reset? #oyms, has the set period elapsed to minimize the minimum stop period determined according to the characteristics of the air conditioner? After judging by I, is this % temperature permissible range? 1 is determined, and in response to this NOK, 1 power saving flag is set p, and the emptying machine is turned on accordingly, and the ON period during each cycle time eel~tea, -~tel
Define In.

However, what is the permissible temperature range? l is Ylg and turtle,
1 Maximum reset period Guan Kei? If I is Yll, then 911
For aircraft security, turn on the air conditioner using the power saving flag set IK.
Tosui.

Therefore, the nine cycle time is determined in advance as a certain period of time T・Yi~! - Every KOPWM t・wo town~t
O1 is formed, power saving is achieved, and *il refreshing value! OFF period period deci1~t,,aO according to t
Actual room temperature value because the length is determined! .

Is it within the acceptable range? AC or NOTA, within 419.

Figure 12 is an excerpt from the 70-chart of %'IN moderation@I, which controls the valve opening of the pneumothorax machine and the outside air worker status.

In other words, depending on the operating status of the fan, the air conditioner is turned on gradually depending on the operating status of the fan. # is determined, and based on this ygs, the mode is set to 1, and the cooling % heating, IIIHl, which is determined by the season.
Before any of the humidification, etc., determine the control mode based on the combination k of these, and then read out the adjustment coefficient corresponding to the control mode as a variable value. Calculation IK, υ proportional, integral, and differential calculations are performed to obtain the control output, and after performing 1 interference compensation process I such as compensation for 1 ml drop during dehumidification, for example, the valve required in 1 for dehumidification. If the opening degree is 80-1 and the valve opening f required for cooling is 50 kan, then %H1gk select 1 is performed, such as selecting the larger one of these, 5Oqb.

Following this, the enthalpy between the outside air and the room is calculated based on the temperature and humidity of the outside air and the temperature and humidity inside the house, and judgment is made as to whether or not the outside air can be used for cooling. l K has decided on the minimum amount of open air intake damper necessary for hygiene, 9! The maximum opening degree of the valve in the engine is set in seconds using the 1-opening limit process #, and the relationship between the valve opening 1 and the flow rate of the fluid passing through this valve is linearized by the 1-control output linearization IK. After that, one control output determination l is finally performed.

In addition, Denku fi # machine on? In the case of No. I, the full-close control output determination l for the valve opening degree is immediately performed.

The above Hakagame fire control l is to be carried out,
80 sub-controllers for monitoring When information about a fire outbreak is given, they are immediately activated to prevent the leakage of fire smoke from spreading to other areas, and to prevent ventilation from accelerating the combustion of the fire. Set the fire flag and perform interrupt processing9! −
At the same time as the machine stops operating, the ventilation damper is blocked and maintained in this state until information is given that the fire is over.

Therefore, when each of the above routines is completed, the final control output is determined according to the status of each 7 lag and the status of the control K11M-, and as shown in FIG. Output Calm O Send IK, the actual control output is sent to the air conditioner*,
The system shown in Figure 6 is carried out on the JI5 side, and the data involved in these decisions and the data on the control situation are on the secondary side @@ROT.

~aOT@Each terminal control IIl device TO? ■〜T
In addition to being summarized in 0TWan@, the main controller MOTE and each terminal controller! Since it is transmitted and received between 0 ties 1 % TQT, the data that shows the latest control status is always a town revenge memo in raw ＠＠＠ ＠ MOY! JILAMm and can be checked from the terminal device TIK, while the terminal device @
The latest data given from Tie is sent to each terminal controller TO.
T■～TO! It will be stored in the town memory ljl1Mt of am.
m is the main controller MOT because basic control data is stored in the variable memory ham Ml and the write memo 17 FROM.

Sub controllers 80T1 to 80Ta and each transmission line L1, Lb
Even if a failure occurs in any or all of the terminal controllers TOTII-TOTm, each terminal controller TOTII-TOTm can locally control each aircraft 111!1 without any problem due to its own operation.

In addition, the main controller MOT and the sub controllers 80T, ~80Tm,
80 and are connected by a common transmission line Lm,
Sub controller 80T, ~80Tm and each terminal controller! Ocho 1
1 to TOTmn, each individual transmission line Lb1 to Lb
Since it is connected from ImK, sub controllers 80T1 to 80T
Terminal side 54] instrument TOTIK? ? If installed near each group of OTm, the amount of wiring and wiring man-hours can be reduced, and the terminal side $l@TO can be installed as needed.
? Since it is only necessary to provide a sub-controller SOT and a sub-controller SOT, it is extremely easy to change the overall configuration.

Note that the order of each flowchart may be changed as appropriate depending on the conditions, or the steps of the little girl may be omitted.
In addition to the cooling and heating machines of each shell, the machine number to be controlled can be arbitrarily selected from the whole island exchange machine used for heat exchange between the outside air and the exhaust air, the refrigerator machine, etc., and the present invention can be modified in various ways. is free.

As is clear from the above description, according to the present invention, distributed control functions are managed centrally, so that it is possible to change general data and monitor the control status, and In addition to limiting the effects of H damage to local areas, reducing the amount of wiring and wiring man-hours, it also makes it easier to expand and change the entire configuration, making air conditioning control # It has a remarkable effect as a position.

1! Eh, outside air data and heat source data, which are air conditioning related information! 0! Also, fire data, power data, etc., which are information other than air translators, are sent from the sub-controller 41 to other TOTs.
This has the advantage of being able to exchange information even if the upper main controller goes down.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a block diagram of the entire configuration, Fig. #12 is a block diagram of the main controller, Fig. 8 is a block diagram of the sub-controller, and Fig. 4 is a block diagram of the terminal controller. Block diagram, Figure 5 is a comprehensive flowchart showing the control operation by the processor of the terminal controller, Figure 6 is the air conditioner-like power ON%O
Figure 7 is a 7a-chart of 1-time scheduler control β, and Figure 8 is a flowchart of t-level control l.
Fig. 1 is a flowchart of upper and lower limit monitoring, and Fig. 10 is an optimal starting control #070-char? , liE Figure 11 shows 1 power-saving operation control 'CI7 configuration, Figure 12 shows 1-
It is a flowchart of dynamic control 1t. MOT---Main controller, aOT1~SOT, @ ・-
・Sub controller, to'rl~TOTI1111...
Terminal control device! False...terminal equipment!・・・
・・Temperature sensor, H・・e・Humidity sensor, Mv II・
・Curn motor control valve% FM...7 motor, MB
・・・・Electromagnetic switch, OP Us * op o,
t OP U l ...-Processor, ROMm, R
OM,, ROM1...Fixed memory, RAM,...
RAM, , Om M, --- variable memory, TIXm,
TRXH@ > TRXIm m ”xt Yuken・φ
Legend 31! Cyst tract, “IS # IFLt, xrt, *
II @ a interface, wlt-... writer, PIOM ---, write memory, B[J8. , B
LF8. , post... Bus line. Patent Applicant: Yamatake ^ Newell Co., Ltd. Agent: Masa Yamakawa 11 (-1 person) = 26 Figure 9 Figure 10 Figure 11 Figure 12

Claims (1)

[Claims] It is connected to a terminal device and sends and receives data to and from the terminal device.
And a monarch system that transmits and receives data with the sub-control leg -〇,
The sub-control l14! relays data transmission and reception between the main control l41 and a plurality of terminal controllers. ! and a monitoring sub-controller that monitors information other than iss+ or air-conditioning related information and transmits wrinkle information to the sub-controller as data, and a j3S-like A common transmission line connecting the terminal controller that makes judgments based on the detection power of the sensor and partially controls each type of space, the Kikio controller, and each sub-side ME. and a transmission path connecting between the secondary side m111i and each terminal controller.