CN117914886A - AHU equipment group control system, AHU equipment group control method and data center - Google Patents
AHU equipment group control system, AHU equipment group control method and data center Download PDFInfo
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- CN117914886A CN117914886A CN202410063243.3A CN202410063243A CN117914886A CN 117914886 A CN117914886 A CN 117914886A CN 202410063243 A CN202410063243 A CN 202410063243A CN 117914886 A CN117914886 A CN 117914886A
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Abstract
The invention discloses an AHU equipment group control system, a method and a data center, wherein the AHU equipment group control system comprises an AHU controller group, a monitoring platform and at least one controlled module, the AHU controller group comprises a plurality of AHU controllers, and a first communication connection is formed among the AHU controllers; the monitoring platform is in second communication connection with the AHU controller group; the AHU controller group is in third communication connection with the controlled module; wherein the first communication connection comprises a BACnet MS/TP protocol docking to form a master-slave token data transfer link; the second communication connection comprises SNMP protocol butt joint so as to meet the hot backup requirement through a plurality of AHU controllers, thereby avoiding the problem of single-point failure of the integral failure of the AHU controller group and realizing the acquisition and uploading of clock data by utilizing the first communication connection and the second communication connection.
Description
Technical Field
The invention relates to the technical field of data center control, in particular to an AHU equipment group control system and method and a data center.
Background
In recent years, with the rapid development of novel technologies such as 5G mobile communication, internet, cloud computing, big data, internet of things, AR/VR, artificial intelligence and the like, data centers are widely used due to the advantage of large energy use scale.
Currently, AHU facilities are used in data centers on a large scale. Because of the continuous improvement of the accuracy requirements of events and fault tracing clocks generated during uninterrupted operation of the AHU equipment, not only is the group control among the AHU equipment hot standby, but also the equipment is required to realize clock synchronization.
Disclosure of Invention
The invention aims to provide a novel technical scheme of an AHU equipment group control system, an AHU equipment group control method and a data center.
In accordance with one aspect of the present invention, an AHU facility group control system is provided.
The system comprises an AHU controller group, a monitoring platform and at least one controlled module, wherein the AHU controller group comprises a plurality of AHU controllers, and a first communication connection is formed among the AHU controllers; the monitoring platform is in second communication connection with the AHU controller group; the AHU controller group is in third communication connection with the controlled module;
Wherein the first communication connection comprises a BACnet MS/TP protocol docking to form a master-slave token data transfer link; the second communication connection comprises an SNMP protocol interface.
Optionally, the first communication connection further comprises an RS485 interface.
Optionally, the second communication connection further comprises NTP protocol interfacing.
Optionally, a plurality of said controlled modules are included, each of said controlled modules forming said third communication connection with one of said AHU controllers.
Optionally, a plurality of the monitoring platforms are included, the number of the monitoring platforms being equal to the number of the AHU controllers.
Optionally, the monitoring platform includes a control module and a clock module.
Optionally, the system further comprises a switch, wherein the switch and the monitoring platform and the switch and the AHU controller form the second communication connection respectively.
Optionally, the mobile terminal further comprises a touch screen, and the touch screen and the switch form the second communication connection.
According to another aspect of the present invention, there is provided an AHU device group control method, applied to the above AHU device group control system, including:
a plurality of AHU controllers in the AHU controller group acquire monitoring data through the first communication connection;
The AHU controller group transmits the monitoring data to the monitoring platform through the second communication connection;
The monitoring platform transmits control data to the AHU controller group based on the monitoring data;
and the AHU controller group controls the working state of the controlled module based on the control data.
Optionally, the monitoring data includes clock data, and the monitoring platform includes a clock module, where the clock module is configured to receive the clock data.
In accordance with yet another aspect of the present invention, there is provided a data center comprising the above-described AHU facility group control system.
The invention has the technical effects that:
The AHU equipment group control system comprises an AHU controller group, a monitoring platform and at least one controlled module, wherein the AHU controller group comprises a plurality of AHU controllers, and a first communication connection is formed among the AHU controllers; the monitoring platform is in second communication connection with the AHU controller group; the AHU controller group is in third communication connection with the controlled module; wherein the first communication connection comprises a BACnet MS/TP protocol docking to form a master-slave token data transfer link; the second communication connection comprises SNMP protocol butt joint so as to meet the hot backup requirement through a plurality of AHU controllers, thereby avoiding the problem of single-point failure of the integral failure of the AHU controller group and realizing the acquisition and uploading of clock data by utilizing the first communication connection and the second communication connection.
Other features of the present invention and its advantages will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic diagram of an AHU facility group control method in accordance with an embodiment of the present invention.
Reference numerals illustrate:
1. an AHU controller group; 11. an AHU controller; 2. monitoring a platform; 3. a controlled module; 4. a switch; 5. a touch screen.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.
Techniques and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
As shown in fig. 1, an AHU device group control system provided in an embodiment of the present invention includes:
The system comprises an AHU controller group 1, a monitoring platform 2 and at least one controlled module 3, wherein the AHU controller group 1 comprises a plurality of AHU controllers 11, and a first communication connection is formed among the AHU controllers 11; the monitoring platform 2 and the AHU controller group 1 form second communication connection; the AHU controller group 1 and the controlled module 3 form a third communication connection;
Wherein the first communication connection comprises a BACnet MS/TP protocol docking to form a master-slave token data transfer link; the second communication connection comprises an SNMP protocol interface.
As shown in FIG. 1, an AHU controller cluster 1 may include a plurality of AHU controllers 11, with the plurality of AHU controllers 11 being group control cabinets. By arranging a plurality of AHU controllers 11, a non-fixed master-slave communication mechanism can be established, so that autonomous switching of a group control host can be realized, single-point failure risk of system failure caused by failure of the fixed host is avoided, and control reliability of the AHU equipment group control system is improved.
In addition, according to the actual control requirement, the number of the AHU controllers 11 can be adjusted accordingly, so as to control the controlled module 3, adjust the control capability of the AHU device group control system, and adapt to the control requirement of different AHU device group control systems. Because no fixed master-slave communication mechanism is established, the host can be freely switched to meet the redundancy requirement, and the redundancy quantity of the AHU equipment group control system is further improved.
The plurality of AHU controllers 11 form a first communication connection, and the first communication connection includes a BACnet MS/TP (master-slave token data link protocol) protocol docking, so that redundant backup and hot backup of the AHU controller group 1 can be realized, single-point failure risk of system failure caused by failure of a fixed host is avoided, control reliability of an AHU device group control system is improved, and safety requirements of the hot backup are also facilitated.
Specifically, the physical layer of interconnection among the plurality of AHU controllers 11 may be in the form of an RS485 bus, and the protocol layer is in the form of BACnet MS/TP protocol docking. The protocol adopts a token cycle transfer mechanism to establish a master-slave mechanism among a plurality of AHU controllers 11, when the controllers of the controllers obtaining token hosts in the previous cycle fail, when no data access exists in the communication link, the new controllers can regain the tokens to become hosts after the silence period is maintained, so that the hosts can be switched autonomously to meet the requirement of mutual hot backup.
In addition, when the controllers in the AHU controller group 1 need to be upgraded one by one, according to the characteristics of a BACnet MS/TP protocol, a new controller is added into a communication link, and can automatically add an adaptation token to pass without reconfiguration, so that the online upgrading capability of one by one is realized, and the influence on service safety is avoided.
As shown in fig. 1, a second communication connection is formed between the monitoring platform 2 and the AHU controller group 1, and the plurality of AHU controllers 11 in the AHU controller group 1 can transmit the collected monitoring data to the monitoring platform 2 through the second communication connection, so that the response and control of the monitoring platform 2 are also facilitated. The monitoring data may be clock data, the monitoring platform 2 includes a clock module, and the plurality of AHU controllers 11 in the AHU controller group 1 can transmit the collected clock data to the clock module through the second communication connection, so as to provide a basis for secondary analysis, tracing and the like of the equipment operation event and the fault event.
The second communication connection includes SNMP (network management protocol, simple Network Management Protocol) interfacing, and the SNMP protocol is adopted to upload the monitoring data collected by the AHU controller 11 to the monitoring platform 2, and the monitoring platform 2 can transmit control data to the AHU controller 11 based on the monitoring data, so that the AHU controller 11 can control the controlled module 3.
And, form the third communication connection between AHU controller crowd 1 and the controlled module 3, AHU controller crowd 1 can pass the control data that is transmitted from monitor platform 2 to controlled module 3 through the third communication connection, and control the operating condition of controlled module 3. Among them, the controlled module 3 includes, but is not limited to, a sensor, a fan, a water pump, and a valve.
Optionally, the first communication connection further comprises an RS485 interface.
Specifically, the physical layer interconnection among the AHU controllers 11 may be in the form of an RS485 bus, which can facilitate implementation of multipoint communication and remote signal transmission. The protocol layer adopts a BACnet MS/TP protocol butt joint, the protocol adopts a token period transfer mechanism to establish a master-slave mechanism among a plurality of AHU controllers 11, when the controllers of the token-obtaining host in the previous period fail, when no data access exists in a communication link, a new controller can regain the token to become the host after the silence period is kept, so that the autonomous switching of the hosts is realized to meet the requirement of mutual hot backup.
Optionally, the second communication connection further comprises NTP protocol interfacing.
Specifically, an NTP (network time protocol ) interface is further adopted between the AHU controller group 1 and the monitoring platform 2, so that the clocks can be automatically synchronized. Based on the traceable requirement of the equipment operation process, the automatic time setting function of the NTP docking can improve time setting efficiency, operation and maintenance personnel are not required to perform regular clock calibration work on equipment, and the automatic development of the AHU equipment group control system is facilitated. The clock data carried in the SNMP protocol of the equipment is synchronous with the clock data recorded by the equipment and the clock data received by the platform, so that basis can be provided for secondary analysis and tracing of equipment operation events and fault events.
Optionally, a plurality of said controlled modules 3 are included, each said controlled module 3 forming said third communication connection with one said AHU controller 11.
In particular, the arrangement of multiple controlled modules 3 can enhance the control capabilities of the AHU facility group control system. An AHU controller 11 may be communicatively coupled to a controlled module 3 to enable control of the controlled module 3; an AHU controller 11 may also be communicatively coupled to a plurality of controlled modules 3 to enable simultaneous control of the plurality of controlled modules 3.
Optionally, a plurality of the monitoring platforms 2 are included, the number of the monitoring platforms 2 being equal to the number of the AHU controllers 11.
Specifically, the number of the monitoring platforms 2 is equal to the number of the AHU controllers 11, that is, each AHU controller 11 is in communication connection with one monitoring platform 2, so that data interaction between the AHU controllers 11 and the monitoring platforms 2 is facilitated, and the control reliability of the AHU equipment group control system is improved. In addition, the arrangement of the plurality of monitoring platforms 2 and the plurality of AHU controllers 11 also enhances the control capability of the AHU equipment group control system and improves the redundancy of the AHU equipment group control system.
Optionally, the monitoring platform 2 includes a control module and a clock module.
Specifically, the monitoring data may be clock data, the monitoring platform 2 includes a clock module, and the plurality of AHU controllers 11 in the AHU controller group 1 can transmit the collected clock data to the clock module through the second communication connection, so that uploading of clock information corresponding to the operation event can be realized, and the control module can also be convenient for transmitting control data to the AHU controllers 11 based on the clock data. The control module may be a PLC controller (programmable logic controller ).
Optionally, a switch 4 is further included, and the second communication connection is formed between the switch 4 and the monitoring platform 2, and between the switch 4 and the AHU controller 11, respectively.
As shown in fig. 1, the switch 4 and the monitoring platform 2 and the switch 4 and the AHU controller 11 are respectively connected in a second communication manner, so that data transmission can be performed between the AHU controller 11 and the monitoring platform 2 through the switch 4, and therefore, network ports can be expanded by using the switch 4, and reliability of the AHU device group control system is improved.
Optionally, a touch screen 5 is further included, and the touch screen 5 and the switch 4 form the second communication connection, so as to implement time synchronization of the AHU controller 11 and the touch screen 5.
The invention also provides an AHU equipment group control method which is applied to the AHU equipment group control system and comprises the following steps:
First, a plurality of the AHU controllers 11 in the AHU controller group 1 acquire monitoring data through the first communication connection;
second, the AHU controller group 1 communicates the monitoring data to the monitoring platform 2 through the second communication connection;
third, the monitoring platform 2 communicates control data to the AHU controller group 1 based on the monitoring data;
Fourth, the AHU controller group 1 controls the working state of the controlled module 3 based on the control data.
Specifically, a first communication connection is formed between the plurality of AHU controllers 11, where the first communication connection includes a BACnet MS/TP (master-slave token data link protocol) protocol docking, so that redundant backup and hot backup of the AHU controller group 1 can be implemented, a single point failure risk of system failure caused by a single host failure is avoided, control reliability of the AHU device group control system is improved, and safety requirements of the hot backup are also facilitated.
The plurality of AHU controllers 11 in the AHU controller group 1 are capable of transmitting collected monitoring data into the monitoring platform 2 via the second communication connection to facilitate the response and control of the monitoring platform 2. The monitoring platform 2 can transmit control data to the AHU controller 11 based on the monitoring data, and the AHU controller group 1 can transmit the control data transmitted from the monitoring platform 2 to the controlled module 3 through the third communication connection and control the working state of the controlled module 3. Among them, the controlled module 3 includes, but is not limited to, a sensor, a fan, a water pump, and a valve.
Optionally, the monitoring data includes clock data, and the monitoring platform 2 includes a clock module, where the clock module is configured to receive the clock data.
Specifically, the monitoring data may be clock data, the monitoring platform 2 includes a clock module, and the plurality of AHU controllers 11 in the AHU controller group 1 can transmit the collected clock data to the clock module through the second communication connection, so as to provide a basis for secondary analysis, tracing and the like of the equipment operation event and the fault event.
The invention also provides a data center comprising the AHU equipment group control system.
The foregoing embodiments mainly describe differences between the embodiments, and as long as there is no contradiction between different optimization features of the embodiments, the embodiments may be combined to form a better embodiment, and in consideration of brevity of line text, no further description is given here.
While certain specific embodiments of the invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (11)
1. An AHU facility group control system, comprising:
The system comprises an AHU controller group (1), a monitoring platform (2) and at least one controlled module (3), wherein the AHU controller group (1) comprises a plurality of AHU controllers (11), and a first communication connection is formed among the AHU controllers (11); the monitoring platform (2) and the AHU controller group (1) form second communication connection; the AHU controller group (1) and the controlled module (3) form a third communication connection;
Wherein the first communication connection comprises a BACnet MS/TP protocol docking to form a master-slave token data transfer link; the second communication connection comprises an SNMP protocol interface.
2. The AHU appliance group control system of claim 1, wherein the first communication connection further comprises an RS485 interface.
3. The AHU device group control system of claim 1, wherein the second communication connection further comprises an NTP protocol docking.
4. The AHU appliance group control system of claim 1, comprising a plurality of said controlled modules (3), each of said controlled modules (3) forming said third communication connection with one of said AHU controllers (11).
5. The AHU appliance group control system of claim 4, comprising a plurality of said monitor platforms (2), said monitor platforms (2) being equal in number to said AHU controllers (11).
6. The AHU appliance group control system of claim 1, wherein the monitoring platform (2) comprises a control module and a clock module.
7. The AHU appliance group control system of claim 1, further comprising a switch (4), wherein the second communication connection is formed between the switch (4) and the supervisory platform (2) and between the switch (4) and the AHU controller (11), respectively.
8. The AHU appliance group control system of claim 7, further comprising a touch screen (5), the touch screen (5) and the switch (4) forming the second communication connection therebetween.
9. An AHU device group control method, applied to an AHU device group control system of any one of claims 1 to 8, comprising:
a plurality of AHU controllers in the AHU controller group acquire monitoring data through the first communication connection;
The AHU controller group transmits the monitoring data to the monitoring platform through the second communication connection;
The monitoring platform transmits control data to the AHU controller group based on the monitoring data;
and the AHU controller group controls the working state of the controlled module based on the control data.
10. The AHU appliance group control method of claim 9, wherein the monitoring data comprises clock data, and wherein the monitoring platform comprises a clock module for receiving the clock data.
11. A data center comprising the AHU facility group control system of any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410063243.3A CN117914886A (en) | 2024-01-16 | 2024-01-16 | AHU equipment group control system, AHU equipment group control method and data center |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410063243.3A CN117914886A (en) | 2024-01-16 | 2024-01-16 | AHU equipment group control system, AHU equipment group control method and data center |
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| CN117914886A true CN117914886A (en) | 2024-04-19 |
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| CN202410063243.3A Pending CN117914886A (en) | 2024-01-16 | 2024-01-16 | AHU equipment group control system, AHU equipment group control method and data center |
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| CN (1) | CN117914886A (en) |
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- 2024-01-16 CN CN202410063243.3A patent/CN117914886A/en active Pending
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