CN201589978U - Centralized monitoring equipment in computer room based on BACnet field bus - Google Patents

Abstract

The utility model relates to the field of centralized control of remote equipment, and discloses a centralized monitoring equipment for a computer room based on a BACnet field bus. It includes: a multi-protocol conversion unit, a main controller unit, a switch data input/output unit, and an analog data input/output unit; wherein, the multi-protocol conversion unit is connected to the field bus of the building automatic control network data communication protocol, and the switch Quantitative data input/output unit and analog data input/output unit are respectively connected to the field bus of the building automatic control network data communication protocol, and the main controller unit communicates with the building automatic control network data communication protocol field bus through a network card Connection; the main controller unit is a building automatic control network data communication protocol device, and is used to control the devices connected to the field bus according to the signals sent by the switch data input/output unit and the analog data input/output unit. Applying this solution can realize the centralized monitoring of equipment in the computer room with different communication protocols.

Description

Centralized monitoring equipment in computer room based on BACnet field bus

technical field

The utility model relates to the field of centralized control of remote equipment, in particular to a centralized monitoring equipment for a machine room.

Background technique

The computer room is now a key information hub in the development of the national economy. With the vigorous development of informatization and electronicization, the pressure on information networks is increasing. It is necessary to establish a set of safe, effective and high-speed monitoring networks to meet the needs of social development and ensure timely and accurate processing of various information.

There are many kinds of communication equipment in the computer room, such as: uninterruptible power supply (Uninterruptible PowerSupply, UPS for short), power equipment such as power transformation and distribution equipment, diesel generators, and environmental conditioning equipment such as air conditioners and humidifiers, temperature and humidity detectors, Water leakage monitors, fire probes and other monitoring and alarm equipment. It is precisely because there are many types of communication equipment in the computer room, various brands, diverse network structures, and incompatible communication protocols that bring great complexity to the establishment of a computer room monitoring system.

The existing monitoring objects can only be independent, unable to achieve the purpose of centralized monitoring, thus forming isolated information islands one by one, unable to complete information exchange and effective communication.

Utility model content

The first purpose of the utility model is to provide: a centralized monitoring equipment for a computer room. Centralized monitoring of computer room equipment with different communication protocols can be realized.

The centralized monitoring equipment for a machine room provided by the utility model includes:

Multi-protocol conversion unit, main controller unit, digital data input/output unit, analog data input/output unit; among them,

The multi-protocol conversion unit is connected to the field bus of the building automatic control network data communication protocol, and is used to realize the protocol conversion between each non-BACnet bus and the BACnet bus;

The switching data input/output unit and the analog data input/output unit are respectively connected to the field bus of the building automatic control network data communication protocol, and the main controller unit communicates with the building automatic control network data through a network card. Communication protocol Fieldbus connection;

The switch data input/output unit is used to collect industrial switch signals and data records, and send the switch signals and data records to the main controller unit;

The analog data input/output unit is used to collect industrial analog signals and data records, and send the industrial analog signals and data records to the main controller unit;

The main controller unit is a building automatic control network data communication protocol device, and is used to control the devices connected to the field bus according to the signals sent by the switch data input/output unit and the analog data input/output unit.

Optionally, the main controller unit is also electrically connected to an alarm output unit,

The alarm output unit is used to output an alarm signal according to the control of the main controller unit.

Optionally, the main controller unit is an industrial control computer.

Optionally, the multi-protocol conversion unit is connected to the field bus of the building automatic control network data communication protocol, specifically:

The multi-protocol conversion unit is connected with a building automation network data communication bus adapter,

The building automatic control network data communication bus adapter is connected to the field bus;

The switch data input/output unit and the analog data input/output unit are respectively connected to the field bus of the building automation control network data communication protocol, specifically:

The switching data input/output unit, the analog data input/output unit, and the alarm output unit are respectively electrically connected to a building automatic control network data communication bus adapter,

The communication bus adapters are respectively connected to the field bus.

Optionally, the main controller unit includes: a digital signal processor, a data conversion calculator, and a network communication processor; wherein:

The digital signal processor is connected with the data conversion arithmetic unit and the network communication processor through an internal system bus, and the digital signal processor is used to control the cooperative work of the data conversion arithmetic unit and the network communication processor;

The data conversion calculator is used to convert and calculate the data received by the main controller unit;

The network communication processor is used for receiving the communication signal of the external equipment, and sending the converted building automatic control network data communication protocol code to the external equipment.

Optionally, the main controller unit further includes: a storage unit;

The storage unit is electrically connected to the data conversion calculator for storing data, and the data includes: system setting information, conversion information, and historical data records.

As can be seen from the above, the application of the technical solution of the utility model embodiment, because in the utility model embodiment technical solution, adopts BACnet field bus connection. Since the computer room is an integral part of the building, its monitoring system follows the general rules of the building monitoring system, so it is very convenient to use BACnet fieldbus in the centralized monitoring equipment of the computer room equipment.

In addition, a multi-protocol conversion unit is used for protocol conversion, and various switching and analog signals of the equipment are connected through the switching data input/output unit and analog data input/output unit, and each device is connected to the device through the BACnet field bus. The main controller unit is connected so that it is convenient and easy to connect various devices in the BACnet network. It can be seen that the centralized monitoring equipment in the computer room has a wide range of equipment support capabilities, and can convert the protocols of various monitored objects with multiple manufacturers, models, and protocols, and then connect them to the centralized monitoring equipment in the computer room. Realize the seamless connection between multiple physical connection modes and multiple protocol modes, enable data exchange and integration between equipment in the computer room, realize system openness and information sharing, reduce system operating costs, and improve system maintenance and management efficiency level of automation.

For example: temperature and humidity probes, air conditioners, UPS, power transformation and distribution, diesel generators, water leakage monitoring, fresh air fans, humidifiers, fire probes, etc. each provide protocol communication methods and communication interfaces. The physical connection methods of the interface include switching analog signal, RS232, 485, TCP/IP and other methods, and the communication protocols include CAN, PROFIBUS, MODBUS, DeviceNet and other protocols. These interfaces are respectively transformed into standard open BACnet field bus forms through the digital data input/output unit, analog data input/output unit, and multi-protocol conversion unit, and enter the network bus, and the data acquisition enters the "centralized monitoring equipment" to realize Seamless connection between various physical connection methods and various protocol methods.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the utility model, constitute a part of the application, and do not constitute an improper limitation of the utility model. In the accompanying drawings:

Fig. 1 is a schematic structural diagram of a centralized monitoring device in a computer room provided by Embodiment 1 of the present invention;

Fig. 2 is a schematic diagram of the implementation structure of a centralized monitoring device in a computer room provided by Embodiment 2 of the present invention;

Fig. 3 is a schematic diagram of the electrical structure principle of the main controller unit in the centralized monitoring equipment in a computer room provided by Embodiment 2 of the present invention;

Fig. 4 is an application connection structure diagram of a centralized monitoring device in a computer room provided by Embodiment 2 of the present utility model.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The schematic embodiments and descriptions of the utility model are used to explain the utility model, but not as a limitation to the utility model.

Example 1:

Referring to FIG. 1 , the centralized monitoring equipment in the computer room mainly includes a multi-protocol conversion unit 103 , a main controller unit 101 , a switch data input/output unit 102 , and an analog data input/output unit 104 . The connection relationship and working principle of each part are as follows:

The multi-protocol conversion unit 103 is connected to the A DataCommunication Protocol for Building Automation and Control Networks (BACnet for short) protocol field bus, and the switching data input/output unit 102 and the analog data input/output unit 104 are all connected On the BACnet field bus, the main controller unit 101 is connected with the BACnet field bus through a network card.

The working principle of the centralized control equipment of this equipment is:

The multi-protocol conversion unit 103 supports multiple communication modes such as RS232/485/422 and TCP/IP network, and is used for protocol conversion between non-BACnet bus and BACnet bus. After conversion, each non-BACnet protocol device can be used as a BACnet device, and is connected on the BACnet field bus by a multi-protocol conversion unit 103, so that these non-each non-BACnet protocol devices can communicate with the main controller by a multi-protocol conversion unit 103 The unit 101 is connected, and the main controller unit 101 performs unified and centralized monitoring of these devices. It is conducive to the realization of data exchange and fusion between different devices in each medium, the realization of system openness and information sharing, the reduction of system operating costs, and the improvement of the automation level of system maintenance and management.

The switch data input/output unit 102 is used to collect industrial switch signals and data records, and send the switch signals and data records to the main control unit. In application, the switch data input/output unit 102 can be connected with the switch signal of the device (such as a relay) to collect switch information, data records and other information, so that these information can be input to the main controller through the BACnet field bus The unit 101 is centrally monitored by the main controller unit 101 .

The analog data input/output unit 104 is used for collecting industrial analog signals and data records, and sending the industrial analog signals and data records to the main controller unit 101 . For example, it can be connected with the temperature and humidity sensors in the machine room to collect information such as industrial analog signals and data records, so that these information can be input to the main controller unit 101 through the BACnet field bus, and the main controller unit 101 will centralize monitor.

The main controller unit 101 is a device of the BACnet protocol, and the main controller unit 101 is used to transmit data to the main unit through the BACnet field bus according to the switch data input/output unit 102, the analog data input/output unit 104, and the multi-protocol conversion unit 103. The signals on the controller unit 101 are centrally monitored for various equipment in the computer room.

As can be seen from the above, because in the utility model embodiment technical scheme, adopt BACnet field bus to connect. Since the computer room is an integral part of the building, its monitoring system follows the general rules of the building monitoring system, so it is very convenient to use BACnet fieldbus in the centralized monitoring equipment of the computer room equipment.

In addition, the multi-protocol conversion unit 103 is used for protocol conversion, and the various switching and analog signals of the equipment are connected through the switching data input/output unit 102 and the analog data input/output unit 104, and the BACnet field bus will Each device is connected to the main controller unit 101 so that it is convenient and easy to connect various devices in the BACnet network. It can be seen that the centralized monitoring equipment in the computer room has a wide range of equipment support capabilities, and can convert the protocols of various monitored objects with multiple manufacturers, models, and protocols, and then connect them to the centralized monitoring equipment in the computer room. Realize the seamless connection between multiple physical connection modes and multiple protocol modes, enable data exchange and integration between equipment in the computer room, realize system openness and information sharing, reduce system operating costs, and improve system maintenance and management efficiency level of automation.

For example: temperature and humidity probes, air conditioners, UPS, power transformation and distribution, diesel generators, water leakage monitoring, fresh air fans, humidifiers, fire probes, etc. each provide protocol communication methods and communication interfaces. The physical connection methods of the interface include switching analog signal, RS232, 485, TCP/IP and other methods, and the communication protocols include CAN, PROFIBUS, MODBUS, DeviceNet and other protocols. These interfaces are transformed into standard open BACnet field bus form through switch data input/output unit 102, analog data input/output unit 104, and multi-protocol conversion unit 103 respectively, and then enter the network bus, and data acquisition enters the "centralized monitoring equipment". ", realizing the seamless connection between multiple physical connection modes and multiple protocol modes.

In addition, an alarm output unit 105 can also be added to the centralized monitoring equipment in the machine room, and the alarm output unit 105 is electrically connected to the main controller unit 101 for outputting an alarm signal according to the control of the main controller unit 101 . In order to output an alarm with a signal that is easy to attract the user's attention when an abnormality occurs, such as a light signal or an audio signal and the like.

Wherein, in this embodiment, the main controller unit 101 may be served by an embedded computer (EPC). In this way, since the main controller unit 101 is developed based on the standard EPC architecture, it is stable and reliable, and the standardized structure is also easy to maintain. It only takes up very little memory and is isolated from the operating system. overall stability.

Example 2:

Referring to Fig. 2, the differences between this embodiment and embodiment 1 are:

In this embodiment, the multi-protocol conversion unit 203 is connected with a BACnet bus adapter 207, and the multi-protocol conversion unit 203 is connected with the BACnet field bus 107207 through the BACnet bus adapter;

In the same way, a BACnet bus adapter 205, 206 is electrically connected to the switch data input/output unit 201 and the analog data input/output unit 202 respectively, the switch data input/output unit 201, and the analog data input/output unit 202 It is connected to the BACnet field bus 107 through BACnet bus adapters 205 and 206 respectively.

As can be seen from Figure 2, the input and output interfaces of the switch data input/output unit 201 and/or the analog data input/output unit 202 can be, but not limited to, set to 8-channel data input interfaces, respectively connected to the switch value and the analog value information, and data logging. The multi-protocol conversion unit 203 can support multiple communication modes such as RS232/485/422, TCP/IP network, etc., thereby supporting devices with multiple protocols.

In addition, in this embodiment, refer to FIG. 3 for a schematic diagram of the internal electrical structure of the main controller unit 101 . It can be seen from the figure that the main controller unit 101 includes: a digital signal processor 301 , a data conversion calculator 302 , and a network communication processor 303 . Wherein: the digital signal processor 301 is connected with the data conversion arithmetic unit 302 and the network communication processor 303 through the internal system bus 304 .

The digital signal processor 301 is the core of the main controller unit 101 (preferably based on a chip developed by EPC), and is used to control the cooperative work of the data conversion arithmetic unit 302 and the network communication processor 303 .

The data conversion arithmetic unit 302 is used for converting and calculating the data received by the main controller unit 101;

The network communication processor 303 is used for receiving communication signals from external devices, and sending converted BACnet codes to external devices.

Experiments have proved that the main controller unit shown in Figure 3 is more stable due to the modularization of the internal bus.

In addition, in order to further improve the expandability and maintainability of the main controller unit, the main controller unit further includes a storage unit 305 . The storage unit 305 is electrically connected to the data conversion calculator 302 for storing data, and the stored information includes system setting information, conversion information, historical data records and the like. In this way, it is beneficial to the further control setting, inspection and maintenance of the main controller unit.

Example 3:

FIG. 4 is an application connection structure diagram of a centralized monitoring device in a computer room provided by this embodiment.

Referring to Fig. 4 shows, such as in one embodiment of the present utility model, be arranged with 5 temperature and humidity sensors in the machine room, 4-20 mA analog quantity interface, measuring range is 0-50 degree; There are 5 circuit switch monitoring points , each monitoring point provides a relay contact 401; there are two Merlin Gerin STULZ air conditioners 403 (standard with RS485 interface, custom protocol) and two MGE UPS404 (RS485 interface, MODBUS protocol), the above equipment needs Centralized monitoring and automatic alarm in case of equipment failure.

The multi-protocol conversion unit 203, the switch data input/output unit 203, and the analog data input/output unit 204 of the centralized monitoring equipment in the computer room are respectively connected with each equipment signal (such as switch signal, temperature, humidity analog signal, And device communication data, etc.) communication, so that various protocols and different types of devices can be converted into standard BACnet protocol, and the network signals are output together, and enter the host through the TCP/IP port, thereby constructing an open standard The BACnet protocol, which is the key technology of the present invention, finally realizes efficient networking between different devices.

The technical solutions provided by the embodiments of the present invention have been introduced in detail above. In this paper, specific examples have been used to illustrate the principles and implementation methods of the embodiments of the present invention. The descriptions of the above embodiments are only applicable to help understand the present invention. The principle of the embodiment; at the same time, for those of ordinary skill in the art, according to the embodiment of the present invention, there will be changes in the specific implementation and the scope of application. Utility model restrictions.

Claims (6)

1. A computer room centralized monitoring device, characterized in that it comprises: Multi-protocol conversion unit, main controller unit, digital data input/output unit, analog data input/output unit; among them, The multi-protocol conversion unit is connected to the field bus of the building automatic control network data communication protocol, and is used to realize the protocol conversion between each non-BACnet bus and the BACnet bus; The switching data input/output unit and the analog data input/output unit are respectively connected to the field bus of the building automation network data communication protocol, and the main controller unit communicates with the building automation network data communication through a network card Protocol fieldbus connection; The switch data input/output unit is used to collect industrial switch signals and data records, and send the switch signals and data records to the main controller unit; The analog data input/output unit is used to collect industrial analog signals and data records, and send the industrial analog signals and data records to the main controller unit; The main controller unit is a building automatic control network data communication protocol device, and is used to control the devices connected to the field bus according to the signals sent by the switch data input/output unit and the analog data input/output unit. 2. The computer room centralized monitoring equipment according to claim 1, characterized in that, The main controller unit is also electrically connected to an alarm output unit, The alarm output unit is used to output an alarm signal according to the control of the main controller unit. 3. The computer room centralized monitoring equipment according to claim 1, characterized in that, The main controller unit is an industrial control computer. 4. The computer room centralized monitoring equipment according to claim 1, characterized in that, The multi-protocol conversion unit is connected to the field bus of the building automatic control network data communication protocol, specifically: The multi-protocol conversion unit is connected with a building automation network data communication bus adapter, The building automatic control network data communication bus adapter is connected to the field bus; The switch data input/output unit and the analog data input/output unit are respectively connected to the field bus of the building automation control network data communication protocol, specifically: The switching data input/output unit, the analog data input/output unit, and the alarm output unit are respectively electrically connected to a building automatic control network data communication bus adapter, The communication bus adapters are respectively connected to the field bus. 5. The computer room centralized monitoring equipment according to claim 1, characterized in that, The main controller unit includes: a digital signal processor, a data conversion calculator, and a network communication processor; wherein: The digital signal processor is connected with the data conversion arithmetic unit and the network communication processor through an internal system bus, and the digital signal processor is used to control the cooperative work of the data conversion arithmetic unit and the network communication processor; The data conversion calculator is used to convert and calculate the data received by the main controller unit; The network communication processor is used for receiving the communication signal of the external equipment, and sending the converted building automatic control network data communication protocol code to the external equipment. 6. The computer room centralized monitoring equipment according to claim 4, characterized in that, The main controller unit also includes: a storage unit; The storage unit is electrically connected to the data conversion calculator for storing data, and the data includes: system setting information, conversion information, and historical data records.

Images