CN106358425B - A kind of liquid cooling unit temperature conditioning unit standby system and its control method - Google Patents
A kind of liquid cooling unit temperature conditioning unit standby system and its control method Download PDFInfo
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- CN106358425B CN106358425B CN201610929561.9A CN201610929561A CN106358425B CN 106358425 B CN106358425 B CN 106358425B CN 201610929561 A CN201610929561 A CN 201610929561A CN 106358425 B CN106358425 B CN 106358425B
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Abstract
The present invention provides a kind of liquid cooling unit temperature conditioning unit standby system and its control method, the liquid cooling unit temperature conditioning unit standby system includes the temperature conditioning unit and M spare temperature conditioning units of N number of operation；Each temperature conditioning unit establishes mutually connection by communication network；Each temperature conditioning unit output（N+M‑1）A operating status dry contact；Each temperature conditioning unit is reserved（N+M‑1）A digital input point, the operating status for detecting other each temperature conditioning units in addition to itself.Realize communication under normal circumstances, switch operation and the Status of Backups of each temperature conditioning unit according to the run time of each temperature conditioning unit and fault level, and in the case of generation communication failure, switch operation and the Status of Backups of each temperature conditioning unit according to the fault level of each temperature conditioning unit, ensure that in system has N number of temperature conditioning unit to run always, and M temperature conditioning unit is spare.
Description
Technical field
The present invention relates to industrial control field, more particularly to a kind of liquid cooling unit temperature conditioning unit standby system and its controlling party
Method.
Background technology
Currently in order to realizing the operation of liquid cooling unit temperature conditioning unit and Standby control, generally there are two types of schemes, and one is use one
A external controller is managed collectively each liquid cooling temperature conditioning unit, realizes failure rotation and time rotation.This method
It is very high to the reliability requirement of external controller, it, should generally with the two-node cluster hot backup controller with redundancy control capability
Scheme cost is higher；Another kind is that each temperature conditioning unit of liquid cooling unit is interconnected by communication, the then control of each temperature conditioning unit
Device mutual communicating information processed, the program can make system normal operation when communicating normal, but work as in system and communication abnormality occur
When, the mode of each each self-operating of liquid cooling temperature conditioning unit can only be generally taken, this can cause to be to be in stand-by state originally in system
All temperature conditioning units also behave, this for entire liquid cooling system, equal to had more back-up system water pump put into
Operation, this can not only influence water temperature parameters, can also increase the pressure in terms of pipeline pressure-bearing and distribution.
As it can be seen that the prior art could be improved and improve.
Invention content
Place in view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of liquid cooling unit temperature conditioning unit is standby
Part system and its control method, it is intended to realize that the operation of liquid cooling unit temperature conditioning unit and backup rotation carry out, and reduce scheme implementation
Cost.
In order to achieve the above object, this invention takes following technical schemes：
A kind of liquid cooling unit temperature conditioning unit standby system, which is characterized in that temperature conditioning unit and M including N number of operation
Spare temperature conditioning unit, wherein N >=1, M >=1；Each temperature conditioning unit establishes mutually connection by communication network；It is set
Any of temperature conditioning unit be main temperature conditioning unit, the main temperature conditioning unit collects the operating status of each temperature conditioning unit, and communication is just
In the case of often, switch operation and the backup shape of each temperature conditioning unit according to the run time of each temperature conditioning unit and fault level
State；Each temperature conditioning unit output（N+M-1）A operating status dry contact；Each temperature conditioning unit is reserved（N+M-
1）A digital input point is used to detect the operating status of other each temperature conditioning units in addition to itself, communication abnormality situation
Under, switch operation and the Status of Backups of each temperature conditioning unit according to the fault level of each temperature conditioning unit.
In the liquid cooling unit temperature conditioning unit standby system, each temperature conditioning unit respectively includes a controller,
There is each controller communication port, each controller to establish communication connection by signal line connecting communication mouth.
In the liquid cooling unit temperature conditioning unit standby system, the communication port is RS485 communication interfaces, used
Communications protocol is MODBUS-RTU.
In the liquid cooling unit temperature conditioning unit standby system, each temperature conditioning unit controller is respectively set one not
With address code, voluntarily startup in system communication failure of its setting of the lower temperature conditioning unit of the numerical value of described address code prolongs
When it is shorter.
In the liquid cooling unit temperature conditioning unit standby system, the numerical value of the address code of each temperature conditioning unit is 1-
（N+M）Between numerical value, address code numerical value be 1 temperature conditioning unit start-up study it is most short, address code numerical value is（N+M）Temperature control list
First start-up study longest.
A kind of control method of liquid cooling unit temperature conditioning unit standby system, the described method comprises the following steps：
S100, each temperature conditioning unit are respectively detected temperature, pressure signal in respective temperature conditioning unit and right
Each water pump, the water valve of liquid cooling unit are controlled；
S200, when communicating normal, main temperature conditioning unit collects the running state information of each temperature conditioning unit, according to each temperature
The run time and fault level for controlling unit switch over the operating status of temperature conditioning unit, ensure N number of temperature conditioning unit operation, M
A temperature conditioning unit is spare；When communication failure occurs, step S300 is executed；
S300, each temperature conditioning unit detects temperature conditioning unit quantity in operating status, if detecting the temperature control of operation
Element number is that N does not do any action then, if detecting that the temperature conditioning unit quantity of operation is less than N, thens follow the steps S400；
S400, the temperature conditioning unit in stand-by state are started successively by the sequence of systemic presupposition, until reaching N number of temperature control list
Member is in operating status, and M temperature conditioning unit is in stand-by state.
In the control method of the liquid cooling unit temperature conditioning unit standby system, each temperature conditioning unit described in step S300
Detecting temperature conditioning unit quantity in operating status is specially：
Each temperature conditioning unit output（N+M-1）A operating status dry contact；Each temperature conditioning unit is reserved
（N+M-1）A digital input point is used to detect the operating status of other temperature conditioning units in addition to itself.
The control method of the liquid cooling unit temperature conditioning unit standby system, which is characterized in that pre- described in step S400
If sequence be specially：
Each liquid cooling temperature conditioning unit controller is respectively set there are one different address codes, and the numerical value of described address code is lower
Temperature conditioning unit its setting the voluntarily start-up study in system communication failure it is shorter.
In the control method of the liquid cooling unit temperature conditioning unit standby system, step S300 further includes：
Originally when temperature conditioning unit in operating status detects that the failure that need to be shut down occurs for temperature conditioning unit inner part, the temperature
Control unit is out of service and disconnects the operating status dry contact of the temperature conditioning unit.
Advantageous effect：
The present invention provides a kind of liquid cooling unit temperature conditioning unit standby system and its control method, the liquid cooling unit temperature
Control unit backup system includes the temperature conditioning unit and M spare temperature conditioning units of N number of operation；Each temperature conditioning unit is mutual
Establish communication connection；Each temperature conditioning unit output（N+M-1）A operating status dry contact；Each temperature conditioning unit is pre-
It stays（N+M-1）A digital input point, the operating status for detecting other each temperature conditioning units in addition to itself.It realizes
Communication switches over the operation of temperature conditioning unit and standby according to the run time of each temperature conditioning unit and fault level under normal circumstances
Use state；Detection by digital input point to a temperature conditioning unit operating status, realizes root in the case of communication failure
Switch each temperature conditioning unit operating status and stand-by state according to the fault level of each temperature conditioning unit, therefore ensure that system logical
News have N number of temperature conditioning unit to run always normally and in the case of failure in system, M temperature conditioning unit is spare.
Description of the drawings
Fig. 1 is a kind of structure diagram of liquid cooling unit temperature conditioning unit standby system provided by the invention.
Fig. 2 is a kind of flow chart of the control method of liquid cooling unit temperature conditioning unit standby system provided by the invention.
Specific implementation mode
The present invention provides a kind of liquid cooling unit temperature conditioning unit standby system and its control method, for make the purpose of the present invention,
Technical solution and effect are clearer, clear, and the present invention is described in more detail for the embodiment that develops simultaneously referring to the drawings.It should
Understand, described herein specific examples are only used to explain the present invention, is not intended to limit the present invention.
Referring to Fig. 1, to avoid repeating, the unshowned temperature conditioning unit of other in Fig. 1 and signal line etc. are represented by dashed line.This
Invention provides a kind of liquid cooling unit temperature conditioning unit standby system, which is characterized in that temperature conditioning unit and M including N number of operation
Spare temperature conditioning unit, wherein N >=1, M >=1；Each temperature conditioning unit establishes mutually connection by communication network；It is set
Any of temperature conditioning unit be main temperature conditioning unit, the main temperature conditioning unit collects the operating status of each temperature conditioning unit, and communication is just
In the case of often, switch operation and the backup shape of each temperature conditioning unit according to the run time of each temperature conditioning unit and fault level
State；Each temperature conditioning unit output（N+M-1）A operating status dry contact；Each temperature conditioning unit is reserved（N+M-
1）A digital input point is used to detect the operating status of other each temperature conditioning units in addition to itself, communication abnormality situation
Under, switch operation and the Status of Backups of each temperature conditioning unit according to the fault level of each temperature conditioning unit.
In order to make it easy to understand, N=2 is set in the present embodiment, M=2, i.e., the（N+M）Temperature conditioning unit is the 4th temperature conditioning unit；If
Fixed first temperature conditioning unit is main temperature conditioning unit.
Specifically, the first temperature conditioning unit 10, the second temperature conditioning unit 20, third temperature conditioning unit（It is not shown in figure）And the 4th temperature
Unit 40 respectively each water pump corresponding with liquid cooling unit, water valve connection are controlled, for realizing temperature, pressure in respective temperature conditioning unit
The detection of signal and the corresponding each water pump of control, water valve.Each temperature conditioning unit establishes mutually communication connection, and described the
One temperature conditioning unit collects the run time and operating status of each temperature conditioning unit.First temperature conditioning unit is respectively to the second temperature control list
Member, third temperature conditioning unit, the 4th temperature conditioning unit constantly send pulse signal, for the second temperature conditioning unit, third temperature conditioning unit, the
Whether the detection of four temperature conditioning units is respectively normal with the communication of the first temperature conditioning unit；Second temperature conditioning unit, third temperature conditioning unit, the 4th
Temperature conditioning unit respectively generates pulse signal for being detected by the first temperature conditioning unit.When communicate it is normal when, the first temperature conditioning unit according to
The run time and operating status of each temperature conditioning unit switch operation and the stand-by state of each temperature conditioning unit, and the guarantee system beginning has
2 temperature conditioning units are run and 2 temperature conditioning units are spare.
The controller of each temperature conditioning unit exports the digital output point of 1 temperature conditioning unit operating status respectively,
3 same operating status dry contacts are separately converted to by intermediate relay again, above-mentioned 3 converted respectively operating status is dry
Contact is connected respectively to the controller of other 3 liquid cooling temperature conditioning units.Therefore, when communication failure occurs, each control
Reserved 3 digital quantities of device processed input test point, the operating status for detecting other 3 liquid cooling temperature conditioning units.It is specific as follows：
A, it is in the controller of the temperature conditioning unit of stand-by state originally for any one, if digital quantity input test point
Detection, which determines in system, has 2 temperature conditioning units running, then the controller of the stand-by state continues to keep stand-by state；If number
Word amount input test point detects in system to be run less than 2 temperature conditioning units, standby according to the sequence starting of systemic presupposition at this time
Temperature conditioning unit is until there is 2 temperature conditioning units in operating status.
B, for the controller of any one original liquid cooling temperature conditioning unit in operating status, when detecting in temperature conditioning unit
When the failure that need to be shut down occurs for component, then the temperature conditioning unit where controlling the controller is out of service and liquid cooling temperature conditioning unit
Operating status dry contact disconnects.
C, with the first temperature conditioning unit occur communication failure whether, the second liquid cooling temperature conditioning unit, third temperature conditioning unit with
And the 4th temperature conditioning unit generate pulse signal.Therefore, when communication failure is eliminated, the first temperature conditioning unit is able to detect that pulse
Signal and determine whole system recovered communication be normal.When communication restores normal, it is each to reactivate communication modes realization
Temperature conditioning unit switches over operation and stand-by state according to run time and fault level.
Therefore, it when communication failure occurs for system, remains to through digital input point to each temperature conditioning unit operating status
The failover of each temperature conditioning unit in realization system is detected, ensures that whole system still has N number of temperature conditioning unit to run, M temperature
It is spare to control unit.
Further, in the liquid cooling unit temperature conditioning unit standby system, each temperature conditioning unit respectively includes one
A controller, each controller carry communication port, and the communication port of each temperature controller is connected and established by signal line
Communication.It is established and is connected by signal line due to each controller, implement simple, communication robust.
In the present embodiment, the communication port of the controller is RS485 communication interfaces, is sequentially connected respectively using RS485 buses
The communication interface of a temperature conditioning unit, the communications protocol employed in the present embodiment is MODBUS-RTU, therefore improves each temperature
The communication transmission efficiency between unit is controlled, the reliability of system is improved.
Further, in the liquid cooling unit temperature conditioning unit standby system, each temperature conditioning unit controller difference
One different address code is set, the numerical value of described address code lower temperature conditioning unit its setting in system communication failure
Voluntarily start-up study is shorter.In the case that communication failure occurs for system, there are 2 temperature conditioning units to be in normal operation shape originally
State is then in 2 spare temperature conditioning units if there is 1 temperature conditioning unit failure leads to only 1 temperature conditioning unit operation
Address code numerical value is low（Start-up study is short）Temperature conditioning unit starts, and has 2 temperature conditioning unit operations, another 2 temperature controls in guarantee system
Unit is spare.
In the present embodiment, the address code of the first temperature conditioning unit is set as 1, start-up study is 0 second；The ground of second temperature conditioning unit
Location code is 2, and start-up study is 2 seconds；The address code of third temperature conditioning unit is 3, and start-up study is 4 seconds；The ground of 4th temperature conditioning unit
Location code is 4, and start-up study is 6 seconds.
In conclusion the present invention is connected by the way that each temperature conditioning unit to be established mutually to communication, while being inputted by digital quantity
Point is detected each temperature conditioning unit operating status, realizes when communicating normal, when according to the operation of each temperature conditioning unit
Between and fault level the operating status of each temperature conditioning unit is switched over；When communication failure occurs, according to each temperature control list
The fault level of member switches over the operating status of each temperature conditioning unit, it is achieved that N number of temperature conditioning unit in guarantee system
Operation, M temperature conditioning unit are spare.
Referring to Fig. 2, a kind of control method of liquid cooling unit temperature conditioning unit standby system, the method includes following steps
Suddenly：
S100, each temperature conditioning unit are respectively detected temperature, pressure signal in respective temperature conditioning unit and right
Each water pump, the water valve of liquid cooling unit are controlled；
S200, when communicating normal, main temperature conditioning unit collects the running state information of each temperature conditioning unit, according to each temperature
The run time and fault level for controlling unit switch over the operating status of temperature conditioning unit, ensure N number of temperature conditioning unit operation, M
A temperature conditioning unit is spare；When communication failure occurs, step S300 is executed；
S300, each temperature conditioning unit detects temperature conditioning unit quantity in operating status, if detecting the temperature control of operation
Element number is that N does not do any action then, if detecting that the temperature conditioning unit quantity of operation is less than N, thens follow the steps S400；
S400, the temperature conditioning unit in stand-by state are started successively by the sequence of systemic presupposition, until reaching N number of temperature control list
Member is in operating status, and M temperature conditioning unit is in stand-by state.
Further, in the control method of liquid cooling unit temperature conditioning unit standby system, each temperature control described in step S300
Unit detects temperature conditioning unit quantity in operating status：
Each temperature conditioning unit output（N+M-1）A operating status dry contact；Each temperature conditioning unit is reserved
（N+M-1）A digital input point is used to detect the operating status of other temperature conditioning units in addition to itself.
Further, the preset sequence described in step S400 is specially：Each liquid cooling temperature conditioning unit controller is set respectively
Set there are one different address codes, the numerical value of described address code lower temperature conditioning unit its setting in system communication failure
Voluntarily start-up study is shorter.
The control method of the liquid cooling unit temperature conditioning unit standby system, which is characterized in that step S300 further includes：It is former
When this temperature conditioning unit in operating status detects that the failure that need to be shut down occurs for temperature conditioning unit inner part, which stops
It runs and disconnects the operating status dry contact of the temperature conditioning unit.
In conclusion a kind of control method of liquid cooling unit temperature conditioning unit standby system provided by the invention, by each
Temperature conditioning unit establishes communication connection, realizes in communication under normal circumstances according to the run time of each temperature conditioning unit and failure etc.
Grade switches over operation and the stand-by state of temperature conditioning unit；Inspection by digital input point to a temperature conditioning unit operating status
It surveys, realizes and each temperature conditioning unit operating status is switched according to the fault level of each temperature conditioning unit in the case of communication failure
And stand-by state, the system that ensure that in the case where communicating normal and failure, have N number of temperature conditioning unit to run always in system, M
Temperature conditioning unit is spare.
It, can according to the technique and scheme of the present invention and its hair it is understood that for those of ordinary skills
Bright design is subject to equivalent substitution or change, and all these changes or replacement should all belong to the guarantor of appended claims of the invention
Protect range.
Claims (4)
1. a kind of liquid cooling unit temperature conditioning unit standby system, which is characterized in that temperature conditioning unit and M including N number of operation are a standby
Temperature conditioning unit, wherein N >=1, M >=1；Each temperature conditioning unit establishes mutually connection by communication network；Setting is wherein
Any one temperature conditioning unit is main temperature conditioning unit, and the main temperature conditioning unit collects the operating status of each temperature conditioning unit, and communication is normal
In the case of, switch operation and the Status of Backups of each temperature conditioning unit according to the run time of each temperature conditioning unit and fault level；
Each temperature conditioning unit output（N+M-1）A operating status dry contact；Each temperature conditioning unit is reserved（N+M-1）It is a
Digital input point is used to detect in addition to itself the operating status of each temperature conditioning units of others, in the case of communication abnormality, root
Switch operation and the Status of Backups of each temperature conditioning unit according to the fault level of each temperature conditioning unit;
Each temperature conditioning unit respectively includes a controller, and each controller has communication port, each controller logical
It crosses signal line connecting communication mouth and establishes communication connection；The communication port is RS485 communication interfaces, and used communications protocol is
MODBUS-RTU；A different address code is respectively set in each temperature conditioning unit controller, and the numerical value of described address code is got over
The voluntarily start-up study in system communication failure of its setting of low temperature conditioning unit is shorter.
2. liquid cooling unit temperature conditioning unit standby system according to claim 1, which is characterized in that each temperature control list
The numerical value of the address code of member is 1-（N+M）Between numerical value, address code numerical value be 1 temperature conditioning unit start-up study it is most short, address
Yardage value is（N+M）Temperature conditioning unit start-up study longest.
3. a kind of control method of such as claim 1-2 any one of them liquid cooling unit temperature conditioning unit standby systems, feature
It is, the described method comprises the following steps：
S100, each temperature conditioning unit are respectively detected and to liquid cooling temperature, pressure signal in respective temperature conditioning unit
Each water pump, the water valve of unit are controlled；
S200, when communicating normal, main temperature conditioning unit collects the running state information of each temperature conditioning unit, according to each temperature control list
The run time and fault level of member switch over the operating status of temperature conditioning unit, ensure N number of temperature conditioning unit operation, M temperature
It is spare to control unit；When communication failure occurs, step S300 is executed；
S300, each temperature conditioning unit detects temperature conditioning unit quantity in operating status, if detecting the temperature conditioning unit of operation
Quantity is that N does not do any action then, if detecting that the temperature conditioning unit quantity of operation is less than N, thens follow the steps S400；
S400, the temperature conditioning unit in stand-by state are started successively by the sequence of systemic presupposition, until reaching at N number of temperature conditioning unit
In operating status, M temperature conditioning unit is in stand-by state；
Each temperature conditioning unit described in step S300 detects temperature conditioning unit quantity in operating status：
Each temperature conditioning unit output（N+M-1）A operating status dry contact；Each temperature conditioning unit is reserved（N+M-
1）A digital input point is used to detect the operating status of other temperature conditioning units in addition to itself；
Preset sequence described in step S400 is specially：
Each liquid cooling temperature conditioning unit controller is respectively set there are one different address codes, the lower temperature of the numerical value of described address code
The voluntarily start-up study in system communication failure of its setting of control unit is shorter.
4. the control method of liquid cooling unit temperature conditioning unit standby system according to claim 3, which is characterized in that step
S300 further includes：
Originally when temperature conditioning unit in operating status detects that the failure that need to be shut down occurs for temperature conditioning unit inner part, the temperature control list
Member is out of service and disconnects the operating status dry contact of the temperature conditioning unit.
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| CN112350584B (en) * | 2020-09-17 | 2022-02-01 | 珠海格力电器股份有限公司 | Heat dissipation control device and method for power device and electrical equipment |
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| CN1979363A (en) * | 2005-12-09 | 2007-06-13 | 广州番禺速能冷暖设备有限公司 | Constant-temperature constant-humidity air-conditioner host/spare machine control system |
| CN201359700Y (en) * | 2009-02-27 | 2009-12-09 | 德阳市伊诗特科技有限公司 | Sea water desalinization control system provided with redundant controller and redundant network |
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