Communication fault monitoring device of DAU measurement and control unit

Abstract

The utility model belongs to the technical field of DAU measurement and control unit fault monitoring, and particularly relates to a communication fault monitoring device of a DAU measurement and control unit, which can be connected with communication ends of a plurality of DAU measurement and control units at the same time by arranging a plurality of monitoring modules. The data transceiving of the plurality of DAU measurement and control units is controlled by controlling the sending signal distributor, the receiving signal distributor and the switcher, and the DAU measurement and control units are connected to a data bus to realize data communication; meanwhile, the monitoring module is monitored and controlled through the monitoring platform; when one DAU measurement and control unit has a communication fault, normal communication of other DAU measurement and control units cannot be influenced, and one monitoring module is connected with a plurality of DAU measurement and control units, so that the communication fault of the DAU measurement and control units can be positioned to the monitoring module, and the maintenance cost is effectively reduced.

Description

Technical Field

[0001] This utility model belongs to the field of DAU measurement and control unit fault monitoring technology, specifically relating to a communication fault monitoring device for a DAU measurement and control unit. Background Technology

[0002] The RS485 bus is a multi-point communication bus with a two-wire half-duplex balanced transmission line. It features long transmission distances and strong anti-interference capabilities. DAU (Digital Active Unit) control and measurement units typically use the RS485 bus for data transmission. Multiple DAU control and measurement units are connected to a single RS485 bus to complete data transmission. Control and measurement units can be directly installed or removed from the RS485 bus, making configuration simple, convenient, and cost-effective. However, when one DAU control and measurement unit experiences a communication failure, it often causes an interruption or even a system crash on the RS485 bus, affecting all other DAU control and measurement units. Furthermore, locating the fault in each DAU control and measurement unit requires maintenance personnel to troubleshoot individually, consuming significant manpower. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art in which multiple DAU measurement and control units are directly connected to the RS485 bus to achieve data transmission and maintenance difficulties, thereby providing a communication fault monitoring device for DAU measurement and control units.

[0004] This utility model provides a communication fault monitoring device for a DAU (Digital Active Unit) measurement and control unit, comprising multiple monitoring modules, each connected to a monitoring platform. The monitoring platform is connected to a data bus and is used to monitor and control the monitoring modules. Each monitoring module includes a processor, a transmitting signal distributor, a receiving signal distributor, and multiple switches. The control terminal of the processor is connected to and controls the transmitting signal distributor, the receiving signal distributor, and the switches. The communication terminal of each DAU measurement and control unit is connected to the transmitting signal distributor and the receiving signal distributor through one of the switches. The transmitting signal distributor and the receiving signal distributor are connected to the communication terminal of the processor. The communication terminal of the processor is connected to the data bus.

[0005] Furthermore, the monitoring module also includes a first isolator, which connects the communication terminal of the processor to the data bus.

[0006] Furthermore, the monitoring module also includes a second isolator, which connects the processor's communication terminal to the transmitting signal distributor and the receiving signal distributor.

[0007] Furthermore, the monitoring module also includes a third isolator, which connects the control terminal of the processor to the transmitting signal distribution module, the receiving signal monitoring module, and the switch.

[0008] Furthermore, a total of eight switches are provided, each connected to the communication terminal of one of the eight DAU measurement and control units; the transmitting signal distributor is a one-in-eight-out distributor, with its output terminal connected to the eight switches; the receiving signal distributor is an eight-in-one-out distributor, with its input terminal connected to the eight switches.

[0009] Furthermore, four monitoring modules are provided, with each module connected to at least one DAU monitoring and control unit.

[0010] Furthermore, the data bus is an RS485 bus, and the communication terminal of the processor and the communication terminal of the DAU measurement and control unit are RS485 interfaces.

[0011] Furthermore, the monitoring module is connected to the monitoring platform via an optical transceiver.

[0012] Beneficial effects: This utility model discloses a communication fault monitoring device for DAU measurement and control units. It is equipped with multiple monitoring modules, capable of simultaneously connecting to the communication terminals of multiple DAU measurement and control units. By controlling the transmitting signal distributor, receiving signal distributor, and switcher, it controls the data transmission and reception of multiple DAU measurement and control units and connects to a data bus to achieve data communication. Simultaneously, a monitoring platform monitors and controls the monitoring modules. When one DAU measurement and control unit experiences a communication fault, it does not affect the normal communication of other DAU measurement and control units. Furthermore, by connecting multiple DAU measurement and control units through a single monitoring module, the communication fault of the DAU measurement and control units can be located on the monitoring module, effectively reducing maintenance costs. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic block diagram of the overall structure of this utility model;

[0015] Figure 2 A schematic block diagram of the connection structure between a monitoring module and a DAU measurement and control unit of this utility model. Detailed Implementation

[0016] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0017] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0019] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0020] Reference Figure 1 and Figure 2As shown, this embodiment provides a communication fault monitoring device for a DAU (Data Acquisition Unit) measurement and control unit, including multiple monitoring modules. These monitoring modules are respectively connected to a monitoring platform, which is connected to a data bus for monitoring and controlling the monitoring modules. Each monitoring module includes a processor, a transmitting signal distributor, a receiving signal distributor, and multiple switches. The processor's control terminal is connected to and controls the transmitting signal distributor, the receiving signal distributor, and the switches. The communication terminal of each DAU measurement and control unit is connected to the transmitting signal distributor and the receiving signal distributor through one of the switches. The transmitting signal distributor and the receiving signal distributor are connected to the processor's communication terminal. The processor's communication terminal is connected to the data bus. The monitoring module acquires the measurement and control data corresponding to the DAU measurement and control unit and transmits it to the monitoring platform via the data bus.

[0021] This embodiment discloses a communication fault monitoring device for a DAU (Digital Active Unit) measurement and control unit. It includes multiple monitoring modules that can simultaneously connect to the communication terminals of multiple DAU measurement and control units. The device controls the data transmission and reception of multiple DAU measurement and control units by controlling a transmitting signal distributor, a receiving signal distributor, and a switch, and connects to a data bus to achieve data communication. Simultaneously, a monitoring platform monitors and controls the monitoring modules. When one DAU measurement and control unit experiences a communication fault, it does not affect the normal communication of other DAU measurement and control units. Furthermore, by connecting multiple DAU measurement and control units through a single monitoring module, the communication fault of the DAU measurement and control units can be located on the monitoring module, effectively reducing maintenance costs.

[0022] Specifically, the monitoring module further includes a first isolator, which connects the processor's communication terminal to the data bus. It also includes a second isolator, which connects the processor's communication terminal to the transmit signal distributor and the receive signal distributor. Finally, it includes a third isolator, which connects the processor's control terminal to the transmit signal distribution module, the receive signal monitoring module, and the switch.

[0023] In this embodiment, a total of eight switches are provided, each connected to the communication terminal of one of the eight DAU measurement and control units; the transmitting signal distributor is a one-in-eight-out distributor, with its output terminal connected to the eight switches; the receiving signal distributor is an eight-in-one-out distributor, with its input terminal connected to the eight switches.

[0024] The monitoring module is set to four, and each detection module is connected to at least one DAU measurement and control unit.

[0025] The data bus is an RS485 bus, and the communication terminal of the processor and the communication terminal of the DAU measurement and control unit are RS485 interfaces.

[0026] The monitoring module is connected to the monitoring platform via an optical transceiver.

[0027] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0028] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A communication fault monitoring device for a DAU (Digital Active Unit) measurement and control unit, characterized in that, The system includes multiple monitoring modules, each connected to a monitoring platform. The monitoring platform is connected to a data bus and is used to monitor and control the monitoring modules. Each monitoring module includes a processor, a transmitting signal distributor, a receiving signal distributor, and multiple switches. The processor's control terminal is connected to and controls the transmitting signal distributor, the receiving signal distributor, and the switches. The communication terminal of each DAU (Digital Active Controller) unit is connected to the transmitting signal distributor and the receiving signal distributor through one of the switches. The transmitting signal distributor and the receiving signal distributor are connected to the processor's communication terminal. The processor's communication terminal is connected to the data bus.

2. The communication fault monitoring device for a DAU measurement and control unit according to claim 1, characterized in that, The monitoring module also includes a first isolator, which connects the processor's communication terminal to the data bus.

3. The communication fault monitoring device for a DAU measurement and control unit according to claim 1, characterized in that, The monitoring module further includes a second isolator, which connects the processor's communication terminal to the transmitting signal distributor and the receiving signal distributor.

4. The communication fault monitoring device for a DAU measurement and control unit according to claim 1, characterized in that, The monitoring module also includes a third isolator, which connects the processor's control terminal to the transmitting signal distributor, the receiving signal distributor, and the switch.

5. The communication fault monitoring device for a DAU measurement and control unit according to claim 1, characterized in that, There are eight switches in total, each connected to the communication terminal of one of the eight DAU measurement and control units; the transmitting signal distributor is a one-in-eight-out distributor, with its output terminal connected to the eight switches; the receiving signal distributor is an eight-in-one-out distributor, with its input terminal connected to the eight switches.

6. The communication fault monitoring device for a DAU measurement and control unit according to claim 1, characterized in that, The monitoring module is set to four, and each detection module is connected to at least one DAU measurement and control unit.

7. The communication fault monitoring device for a DAU measurement and control unit according to claim 1, characterized in that, The data bus is an RS485 bus, and the communication terminal of the processor and the communication terminal of the DAU measurement and control unit are RS485 interfaces.

8. The communication fault monitoring device for a DAU measurement and control unit according to claim 1, characterized in that, The monitoring module is connected to the monitoring platform via an optical transceiver.

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