CN104456861A - Computer room air conditioner duty in-turn system and control method - Google Patents
Computer room air conditioner duty in-turn system and control method Download PDFInfo
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- CN104456861A CN104456861A CN201310433348.5A CN201310433348A CN104456861A CN 104456861 A CN104456861 A CN 104456861A CN 201310433348 A CN201310433348 A CN 201310433348A CN 104456861 A CN104456861 A CN 104456861A
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- conditioning
- control panel
- master board
- pulse signal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a computer room air conditioner duty in-turn system and a control method. The system comprises a main air conditioner, a plurality of slave air conditioners, a main control panel which is electrically connected with the main air conditioner, and a plurality of salve control panels which are in one-to-one correspondence connection with the slave air conditioners respectively. The main control panel comprises a main control switch, each slave control panel comprises a salve control switch, and the main control panel and each slave control panel further each comprise a signal input end and a signal recognition end. The main control switch and all the slave control switches are sequentially connected in series to form a whole, one end of the whole is connected with the signal input end of the corresponding main control panel, and the other end of the whole is connected with all the signal recognition ends of the control panels. The computer room air conditioner duty in-turn system and the control method have the advantages that the on-off mode of the main control switch is used for controlling an entire computer room air conditioner to operate in turns, common electric appliance connecting wires are adopted in system connecting wires, and thus the system cost is lowered. Due to the connecting mode of the control switches in the system, when any air conditioner is damaged, other air conditioners can recognize the condition, and standby air conditions can be effectively started.
Description
Technical field
The present invention relates to air conditioner in machine room field, more particularly, relate to a kind of air conditioner in machine room wheel valve system and control method.
Background technology
Air conditioner in machine room is a kind of High Precision Air-conditioning specialized in machine room and use, and it not only can control computer room temperature, also can simultaneously controlled humidity.The main services object of air conditioner in machine room is computer, for machine room provides reliable and stable Internet data center (Internet Data Center, IDC) with detection machine room operating temperature, relative humidity, air purity, there is the features such as high sensible heat ratio, high energy efficiency ratio, high reliability, high accuracy.Machine room is most important is exactly reliability, annually within 8760 hours, wants failure-free operation, just needs the reliable parts of air-conditioning and outstanding control system.Mostly general machine room is that N+1 backs up, and an air-conditioning is out of joint, and other air-conditionings just can adapter whole system at once.
At present the interconnected network mode of the control system of air conditioner in machine room is generally adopted to the link of RS485 bus, by the mode of multi-computer communication, carry out control by main frame to multiple stage unit to allocate, when main frame get other units have fault or a power demand time, can give an order and allow unit for subsequent use start shooting.Unit for subsequent use, after receiving Host Command, enters value machine state.But there is Railway Project in the system of being carried out control on duty by turns by RS485 link: 1) RS485 communication needs to use twisted-pair feeder, and to ensure communication quality, the wiring cost of twisted-pair feeder is higher than general wire rod; 2) in RS485 communication system if there is there being a unit to occur physical fault, be not namely communication failure, whole communication link also can be caused to paralyse, therefore main frame cannot effectively control from machine; 3) if having one in RS485 communication system to occur physical fault, namely not communication failure, this unit is caused to exit communication link, now host communication link is still normal, still have a unit and be in stand-by state, just other units can not recognize in system and have device damage, can not effectively open unit for subsequent use.
Summary of the invention
The technical problem to be solved in the present invention is, for the above-mentioned defect of prior art, provides a kind of machine room to take turns valve system and control method.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of air conditioner in machine room wheel valve system, comprise main air-conditioning and multiple stage from air-conditioning, be electrically connected with described main air-conditioning, for controlling the master board of the duty of described main air-conditioning and being multiplely electrically connected correspondingly from air-conditioning with described multiple stage respectively, for control respectively described multiple stage from the duty of air-conditioning from control panel, it is characterized in that, described master board comprises main switching control, eachly include from gauge tap from control panel, and described master board and eachly all also comprise signal input part for providing default detection signal from control panel, for connecting the power input of external power source and the Signal analysis end for identifying described default detection signal, one end of described main switching control is connected with the signal detection end of described master board, the other end is connected from gauge tap successively with each, wherein, last is connected from gauge tap from one end of gauge tap with previous, the other end is connected with described master board and each Signal analysis end from control panel respectively, described master board controls described main air-conditioning work, control the break-make of described main switching control by sending pulse signal simultaneously, each Signal analysis end from control panel all identifies described pulse signal, and controls every platform from air-conditioning work or shutdown wait according to recognized pulse signal.
In above-mentioned air conditioner in machine room wheel valve system, each signal input part from control panel is all connected with the signal input part of described main switching control, and each power input from control panel is all connected with the power input of described master board.
In above-mentioned air conditioner in machine room wheel valve system; each internal number being provided with correspondence from control panel; and described internal number is mated with described pulse signal; when the matching result of described internal number and described pulse signal meets pre-conditioned, then control corresponding shutting down from air-conditioning and wait for.
In above-mentioned air conditioner in machine room wheel valve system; it is described pre-conditioned: when the number of pulses that the pulse signal that described master board sends comprises is M+d; then internal number is controlling corresponding No. M from control panel and shutting down from air-conditioning and wait for of M; wherein; M and d is natural number, and d is default for each basic number of times that all accurately can identify described pulse signal from control panel.
In above-mentioned air conditioner in machine room wheel valve system, every a default first time period, described master board repeats to send described pulse signal; Every default second time period, if current time shut down wait for from air-conditioning be for No. M of greatest measure is from air-conditioning, then described master board sends a number of pulses is the pulse signal of 1+d, internal number is 1 controls corresponding No. 1 from control panel and to shut down from air-conditioning and wait for, otherwise described master board sends a pulse signal than upper moment many pulsatile onces number of times, shut down wait to control next from air-conditioning; The length of wherein said the second default time period is greater than the length of described default first time period.
In above-mentioned air conditioner in machine room wheel valve system, if current time shut down wait for from air-conditioning be maximum No. M of numeral from air-conditioning, then when arriving described the second default time period, again from No. 1 from air-conditioning loop stop wait for.
In above-mentioned air conditioner in machine room wheel valve system, when described take turns that in valve system, arbitrary air-conditioning breaks down time, control its corresponding gauge tap with the control panel of its electric connection and disconnect.
A kind of air conditioner in machine room control method on duty by turns, said method comprising the steps of:
S0: provide above-mentioned air conditioner in machine room to take turns valve system, and at described master board and each signal input part all arranged from control panel for providing default detection signal, and corresponding internal number is all set from control panel each;
S1: initially power on to make main switching control and each all closed from gauge tap;
S2: described master board sends pulse signal, and wherein, described master board sends a pulse, and described main switching control break-make once;
Eachly all identify described pulse signal from control panel by corresponding Signal analysis end; and described internal number is mated with described pulse signal; when the matching result of described internal number and described pulse signal meets pre-conditioned; then control corresponding shutting down from air-conditioning to wait for; described pre-conditioned: when the number of pulses that the pulse signal that described master board sends comprises is M+d, internal number is controlling corresponding No. M from control panel and shutting down from air-conditioning and wait for of M.
S3: every a default first time period, described master board repeats to send described pulse signal;
S4: every default second time period, first judge current time shut down wait for from air-conditioning be whether No. M of greatest measure from air-conditioning, if so, then perform step S5; If not, then step S6 is performed;
S5: it is the pulse signal of 1+d that described master board sends a number of pulses, internal number is 1 controls corresponding No. 1 from control panel and to shut down from air-conditioning and wait for, returns step S3;
S6: described master board sends a pulse signal than upper moment many pulsatile onces number of times, shuts down wait to control next from air-conditioning, returns step S3.
In above-mentioned air conditioner in machine room control method on duty by turns, described method also comprises:
During the 3rd time period of presetting; if described master board and each Signal analysis end from control panel all always None-identified to described default detection signal; then open be in shut down wait for from air-conditioning; wherein, described 3rd prefixed time interval is greater than the time that described master board sends a pulse.
In above-mentioned air conditioner in machine room control method on duty by turns, the length of described the second default time period is greater than the length of described default first time period.
Implement a kind of air conditioner in machine room wheel valve system of the present invention and control method, there is following beneficial effect: the operation on duty by turns being controlled whole air conditioner in machine room by the mode of main switching control break-make, tie conductor is made to adopt common electrical appliance connecting wire, without the need to adopting the twisted-pair feeder that communication link adopts especially, and can be realized by common I/O mouth, without the need to special communication interface and communication chip, effectively reduce system cost.And by main switching control and each connected mode from gauge tap in system, arbitrary air-conditioning damages, and all the other air-conditionings all can recognize in system device damage, and air-conditioning for subsequent use can normally effectively be opened.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural representation of a kind of air conditioner in machine room wheel valve system in present pre-ferred embodiments;
Fig. 2 is the flow chart of a kind of air conditioner in machine room control method on duty by turns in present pre-ferred embodiments;
Fig. 3 is the pulse signal that in Fig. 1, master board sends.
Detailed description of the invention
In order to there be understanding clearly to technical characteristic of the present invention, object and effect, now contrast accompanying drawing and describe the specific embodiment of the present invention in detail.
Fig. 1 is the structural representation of a kind of air conditioner in machine room wheel valve system in present pre-ferred embodiments, comprise main air-conditioning and multiple stage from air-conditioning, in the present embodiment, comprise N platform from air-conditioning (not shown), namely comprise No. 1 to No. N from air-conditioning, wherein, N be greater than 1 integer, this is taken turns valve system and also comprises and being electrically connected with main air-conditioning, for controlling the master board U of the duty of main air-conditioning
0, and to be multiplely electrically connected correspondingly from air-conditioning with multiple stage respectively, for control respectively multiple stage from the duty of air-conditioning from control panel, as shown in Figure 1, be the 1st to N from control panel, i.e. U
1~ U
n.Master board comprises a main switching control K
0, eachly include one from gauge tap from control panel, i.e. K
1~ K
n, and master board U
0with each from control panel U
1~ U
nall also comprising the signal input part for providing default detection signal, being followed successively by V
10~ V
1N, for receiving the power input of external power source signal, be followed successively by V
20~ V
2N, and Signal analysis end for identifying described default detection signal, be followed successively by P
0~ P
n.Main switching control K
0with each from gauge tap K
1~ K
none end and master board U after being sequentially connected in series
0signal input part V
10connect, the other end respectively with master board U
0with each from control panel U
1~ U
nsignal analysis end P
0~ P
nconnect.Wherein, each signal input part V from control panel
11~ V
1Nall with master board U
0signal input part V
10connect, each Signal analysis end V from control panel
21~ V
2Nall with master board U
0signal analysis end V
20connect.Take turns under valve system is in normal condition at this, master board U
0with each from control panel U
1~ U
npower input V
20~ V
2Nwhen connecting external power source, main switching control and be eachly all in closure state from gauge tap, master board U
0send a pulse signal, to control main switching control K
0break-make.Wherein, master board U
0send a pulse, main switching control K
0once, each Signal analysis end from control panel all can identify this pulse signal to break-make, and controls every platform from air-conditioning work or shutdown wait according to recognized pulse signal.
Wherein, each from control panel U
1~ U
nbe provided with corresponding internal number, and by the internal number of self and master board U
0the pulse signal sent mates, and when the internal number of self and the matching result of this pulse signal meet pre-conditioned, then controls corresponding shutting down from air-conditioning and waits for.It is pre-conditioned: as master board U
0when the number of pulses that the pulse signal sent comprises is M+d, each from control panel U
1~ U
nall recognize number of times M; then internal number is controlling corresponding No. M from control panel and shutting down from air-conditioning and wait for of M, and all the other are then in value machine state, wherein; M and d is natural number, and d be default for each all can the basic number of times of accurate identification pulse signal from control panel.And every a default first time period, master board U
0repeat to send this pulse signal; Every default second time period, first judge current time shut down wait for from air-conditioning be whether maximum No. M of numeral from air-conditioning, if so, then when arriving described the second default time period, again from No. 1 from air-conditioning loop stop wait for; Otherwise, master board U
0send a pulse signal than previous moment many pulsatile onces number of times, shut down wait to control next from air-conditioning, namely switch the air-conditioning for subsequent use need shutting down wait according to the order of sequence.Wherein, the second time period length preset is greater than default very first time segment length.
When this takes turns that in valve system, arbitrary air-conditioning breaks down, its corresponding gauge tap can be controlled with the control panel of its electric connection and disconnect.If therefore master board U
0with each from control panel U
1~ U
nsend time durations needed for a pulse being greater than master board, None-identified is to master board U always
0signal input part provide preset detection signal, then each from control panel U
1~ U
nall can judge that in system, free tune there occurs fault, now should open air-conditioning for subsequent use and enter value machine state.
Fig. 2 is the flow chart of a kind of air conditioner in machine room control method on duty by turns in present pre-ferred embodiments, under at wheel, valve system is in normal condition, this air conditioner in machine room control method on duty by turns comprise following step:
S0: the valve system of the air conditioner in machine room wheel shown in Fig. 1 is provided, and at master board U
0with each from control panel U
1~ U
nin signal input part for providing default detection signal is all set, and each from control panel U
1~ U
nin corresponding internal number is all set;
S1: initially power on to make main switching control K
0with each from gauge tap K
1~ K
nall closed;
S2: master board U
0send pulse signal, wherein, master board U
0send a pulse, main switching control K
0break-make once;
Each from control panel U
1~ U
nby the equal identification pulse signal of the Signal analysis end of correspondence; and internal number is mated with pulse signal; when the matching result of internal number and pulse signal meets pre-conditioned, then control corresponding shutting down from air-conditioning and wait for, pre-conditioned: as master board U
0when the number of pulses that comprises of pulse signal sent is M+d, internal number is controlling corresponding No. M from control panel and shutting down from air-conditioning and wait for of M.
S3: every a default first time period, master board U
0repeat to send pulse signal;
S4: every default second time period, first judge current time shut down wait for from air-conditioning be whether No. M of greatest measure from air-conditioning, if so, then perform step S5; If not, then step S6 is performed;
S5: master board U
0sending a number of pulses is the pulse signal of 1+d, and internal number is 1 controls corresponding No. 1 from control panel and to shut down from air-conditioning and wait for;
S6: master board U
0send a pulse signal than upper moment many pulsatile onces number of times, shut down wait to control next from air-conditioning, return step S3.
When having any air-conditioning to break down in wheel valve system, namely corresponding gauge tap can disconnect, during the 3rd time period of presetting, if master board U
0with each from control panel U
1~ U
nthe detection signal preset that provides to the signal input part of master board of the equal None-identified of Signal analysis end, and the 3rd time period of presetting is greater than the time that master board sends a pulse, namely can affirm that in system, free recalling has showed fault, the gauge tap of its correspondence is caused to disconnect, now open air-conditioning for subsequent use, make its value of being in machine state.
In above-mentioned control method, the second time period length preset is preferably the integral multiple of the first Preset Time segment length.
See Fig. 1 and Fig. 2, now introduce the specific works process of in the present invention, air conditioner in machine room being carried out to control on duty by turns in detail: from control panel U
1~ U
nin be provided with corresponding internal number, preferably, be arranged as 1 ~ N in order, when taking turns valve system and being in normal operating condition, control method on duty by turns comprises:
Initially power on, namely have external power source to be connected to master board U
0with each from control panel U
1~ U
npower input V
20~ V
2N, main switching control K
0with each from gauge tap K
1~ K
nall be in closure state, now master board U
0signal analysis end and each control panel Signal analysis end all with master board U
0signal input part directly connect, master board U
0signal input part for providing a default detection signal, can be 0V or+5V etc., wherein, each signal input part from control panel be all connected with the signal input part of master board, is namely also 0V or+5V.In the present embodiment for 0V and GND, therefore, according to the connected mode in Fig. 1, master board U
0all GND signal can be recognized from control panel with each.
Initially power on after a period of time, now by master board U
0send an initialize signal, this initialize signal can by each from control panel U
1~ U
nidentify, master board U
0the signal type sent is break-make control point on duty by turns, namely master board sends a pulse, main switching control break-make once, according to main switching control in Fig. 1 and each connected mode from gauge tap, the break-make number of times of main switching control, can by all from control panel identification.Eachly from control panel, the pulse signal that the internal number of self and master board send to be mated; when the matching result of the pulse signal that internal number and master board send meets pre-conditioned; then control corresponding shutting down from air-conditioning to wait for, be namely in stand-by state.It is pre-conditioned: when the number of pulses of the pulse signal that described master board sends is M+d, eachly all can recognize number of times M from control panel, and internal number is controlling corresponding No. M from control panel and shutting down from air-conditioning and wait for of M.Particularly, as shown in Figure 3, be master board U
0the pulse number sent is the pulse signal of M+d, and the break-make number of times of main switching control can by each from control panel U
1~ U
nidentify, namely eachly can recognize number of times M from control panel, and M and the internal number of self are contrasted; if identical, then this internal number be M from control panel control corresponding No. M from air-conditioning shut down, be in stand-by state; otherwise open corresponding to air-conditioning, enter value machine state.Wherein, pulse number is equivalent to main switching control K
0break-make number of times, d is master board U
0the basic number of times preset when sending pulse signal; for natural number; be preferably the integer for being more than or equal to 1 in the present embodiment; by increasing basic number of times d; make allly more accurately to identify the pulse signal that master board sends from control panel; particularly bide one's time from air-conditioning shutdown etc. when controlling less No. M of numerical value, the pulse number now sent is also just less accordingly, just can identify more accurately by increasing basic number of times d.
Master board U
0namely the first time period t1 preset at set intervals; just repeat to send pulsatile once signal; namely pulse number is still M+d; the length ideal range of the first time period t1 preset is 5 minutes to 15 minutes; in this enforcement, be preferably every 10 minutes send pulsatile once signal; like this can when not working for making arbitrary air-conditioning shut down as people; if do not send pulse signal; then this air-conditioning can be in off position always; therefore repeated every 10 minutes to send pulsatile once signal, just can make because people is that the air-conditioning being in stopped status is in value machine state.
Master board U
0when the second time period t 2 namely preset interval time on duty by turns, the value of M can be proceeded to next from control panel.Particularly; interval time on duty by turns, ideal range was 1 be littlely preferably the integral multiple of the first time period preset up to 2 hours; in this enforcement, interval time on duty by turns is preferably 1 hour; when arriving interval time on duty by turns; master board first judge current time shut down wait for from air-conditioning be whether No. M of greatest measure from air-conditioning; be No. N in the present embodiment from air-conditioning, if so, then master board U
0sending a number of pulses is the pulse signal of 1+d, then internal number is 1 controls corresponding No. 1 from control panel and to shut down from air-conditioning and wait for, repeat to send this pulse signal again when the first time period t1 preset, proceed to judge in time arriving the second time period t 2 preset, repeat; Otherwise master board sends a pulse signal than previous moment many pulsatile onces number of times; thus make next shut down wait from air-conditioning; what be originally in shutdown wait is then in value machine state from air-conditioning; repeat to send this pulse signal again when the first time period t1 preset; proceed to judge in time arriving the second time period t 2 preset, repeat.Therefore, by above-mentioned control method cut-in stand-by air-conditioning according to the order of sequence, thus the object of cycle values machine is reached.
When there being arbitrary air-conditioning to break down in system, namely corresponding gauge tap can disconnect, and above-mentioned control method on duty by turns also comprises: when any one gauge tap in system disconnects, according to the connected mode of gauge tap in the system shown in Fig. 1, master board U
0signal analysis end V
20with each Signal analysis end V from control panel
21~ V
2Nequal None-identified is to master board U
0the default detection signal that provides of signal input part.Consider when system under normal operating conditions, all gauge taps are in closure state always, but as master board U
0when sending pulse signal, send a pulse, main switching control K
0with regard to break-make once, therefore as main switching control K
0during disconnection, master board U
0with each from control panel U
1~ U
nidentify too less than master board U
0the default detection signal that provides of signal input part.But the length of the 3rd time period t 3 after continuing for some time the 3rd time period t 3 namely preset, wherein, preset is greater than master board U
0send the time of a pulse, i.e. the main switching control break-make time once, if during the 3rd time period of presetting, master board U
0with each from control panel U
1~ U
nnone-identified is to the effective detection signal preset always, then can judge that in system, free recalling has showed fault, the gauge tap of its correspondence is caused to disconnect, and eachly all free recalling can show fault judgement system from control panel, now be in opening from air-conditioning of stand-by state and enter value machine state.
In a kind of air conditioner in machine room wheel valve system of the present invention and control method, the operation on duty by turns of whole air conditioner in machine room is controlled by the mode of gauge tap break-make, tie conductor is made to adopt common electrical appliance connecting wire, without the need to adopting the twisted-pair feeder that communication link adopts especially, and the present invention can realize the operation on duty by turns of air conditioner in machine room by I/O mouth common in control panel, without the need to special port and communication chip, significantly reduce system cost.And by the connected mode of gauge tap in system, line is very simple, easy expansion, make air conditioner in machine room number of units unrestricted, and if have any air-conditioning to damage, then corresponding control panel can control corresponding gauge tap and disconnects, all the other air-conditionings all can be recognized in system by the control panel of corresponding electric connection device damage, air-conditioning for subsequent use can normally effectively be opened, and therefore the stability of a system is good, is not easily disturbed.
By reference to the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, also can make a lot of form, these all belong within protection of the present invention.
Claims (10)
1. an air conditioner in machine room wheel valve system, comprise main air-conditioning and multiple stage from air-conditioning, be electrically connected with described main air-conditioning, for controlling the master board of the duty of described main air-conditioning and being multiplely electrically connected correspondingly from air-conditioning with described multiple stage respectively, for control respectively described multiple stage from the duty of air-conditioning from control panel, it is characterized in that, described master board comprises main switching control, eachly include from gauge tap from control panel, and described master board and eachly all also comprise signal input part for providing default detection signal from control panel, for connecting the power input of external power source and the Signal analysis end for identifying described default detection signal, one end of described main switching control is connected with the signal detection end of described master board, the other end is connected from gauge tap successively with each, wherein, last is connected from gauge tap from one end of gauge tap with previous, the other end is connected with described master board and each Signal analysis end from control panel respectively, described master board controls described main air-conditioning work, control the break-make of described main switching control by sending pulse signal simultaneously, each Signal analysis end from control panel all identifies described pulse signal, and controls every platform from air-conditioning work or shutdown wait according to recognized pulse signal.
2. air conditioner in machine room wheel valve system according to claim 1, it is characterized in that, each signal input part from control panel is all connected with the signal input part of described main switching control, and each power input from control panel is all connected with the power input of described master board.
3. air conditioner in machine room wheel valve system according to claim 1; it is characterized in that; each internal number being provided with correspondence from control panel; and described internal number is mated with described pulse signal; when the matching result of described internal number and described pulse signal meets pre-conditioned, then control corresponding shutting down from air-conditioning and wait for.
4. air conditioner in machine room wheel valve system according to claim 3; it is characterized in that; it is described pre-conditioned: when the number of pulses that the pulse signal that described master board sends comprises is M+d; then internal number is controlling corresponding No. M from control panel and shutting down from air-conditioning and wait for of M; wherein; M and d is natural number, and d is default for each basic number of times that all accurately can identify described pulse signal from control panel.
5. air conditioner in machine room according to claim 4 wheel valve system, is characterized in that, every a default first time period, described master board repeats to send described pulse signal; Every default second time period, if current time shut down wait for from air-conditioning be for No. M of greatest measure is from air-conditioning, then described master board sends a number of pulses is the pulse signal of 1+d, internal number is 1 controls corresponding No. 1 from control panel and to shut down from air-conditioning and wait for, otherwise described master board sends a pulse signal than upper moment many pulsatile onces number of times, shut down wait to control next from air-conditioning; The length of wherein said the second default time period is greater than the length of described default first time period.
6. air conditioner in machine room wheel valve system according to claim 5; it is characterized in that; if current time shut down wait for from air-conditioning be numeral maximum No. M from air-conditioning, then when arriving described the second default time period, again from No. 1 from air-conditioning loop stop wait for.
7. air conditioner in machine room according to claim 1 wheel valve system, is characterized in that, when described take turns that in valve system, arbitrary air-conditioning breaks down time, control its corresponding gauge tap with the control panel of its electric connection and disconnect.
8. an air conditioner in machine room control method on duty by turns, is characterized in that, said method comprising the steps of:
S0: the valve system of the air conditioner in machine room wheel according to any one of claim 1-7 is provided, and at described master board and each signal input part all arranged from control panel for providing default detection signal, and corresponding internal number is all set from control panel each;
S1: initially power on to make main switching control and each all closed from gauge tap;
S2: described master board sends pulse signal, and wherein, described master board sends a pulse, and described main switching control break-make once;
Eachly all identify described pulse signal from control panel by corresponding Signal analysis end; and described internal number is mated with described pulse signal; when the matching result of described internal number and described pulse signal meets pre-conditioned; then control corresponding shutting down from air-conditioning to wait for; described pre-conditioned: when the number of pulses that the pulse signal that described master board sends comprises is M+d, internal number is controlling corresponding No. M from control panel and shutting down from air-conditioning and wait for of M.
S3: every a default first time period, described master board repeats to send described pulse signal;
S4: every default second time period, first judge current time shut down wait for from air-conditioning be whether No. M of greatest measure from air-conditioning, if so, then perform step S5; If not, then step S6 is performed;
S5: it is the pulse signal of 1+d that described master board sends a number of pulses, internal number is 1 controls corresponding No. 1 from control panel and to shut down from air-conditioning and wait for, returns step S3;
S6: described master board sends a pulse signal than upper moment many pulsatile onces number of times, shuts down wait to control next from air-conditioning, returns step S3.
9. air conditioner in machine room according to claim 8 control method on duty by turns, is characterized in that, described method also comprises:
During the 3rd time period of presetting; if described master board and each Signal analysis end from control panel all always None-identified to described default detection signal; then open be in shut down wait for from air-conditioning; wherein, described 3rd prefixed time interval is greater than the time that described master board sends a pulse.
10. air conditioner in machine room according to claim 8 control method on duty by turns, is characterized in that, the length of described the second default time period is greater than the length of described default first time period.
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