A monitoring device for a gas film structure

Abstract

The utility model relates to monitoring equipment technical field, concretely relates to a monitoring device of air film structure, including distributed control system, positioning mobile station, positioning antenna, positioning base station and data interface machine main part, data interface machine main part passes through receiving 2 positioning mobile station's positioning data, and after processing, will gather data through modbus TCP protocol transmission to microcontroller in the distributed control system, to reach the purpose of detecting air film center point dynamic movement real -time data, through microcontroller logic processing in the distributed control system, the position of air film center point real -time transmission to the display device of coal distribution distributed control system, and output air film center point displacement greater than 2 meters alarm to the coal light word board monitoring big screen, and then can realize to coal yard air film center point displacement dynamic monitoring.

Description

Technical Field

[0001] This utility model relates to the field of monitoring equipment technology, and in particular to a monitoring device for an air film structure. Background Technology

[0002] The air-supported membrane structure effectively reduces dust leakage through its fully enclosed design. Combined with an intelligent dust suppression system and dust collector, it can reduce dust pollution in coal yards by more than 70%. At the same time, its airtightness prevents the leakage of coal volatiles and harmful gases, reducing secondary pollution to the environment.

[0003] In actual operation, air-supported membrane structures can experience overall swaying under severe weather conditions such as strong convective weather and typhoons. Currently, the air-supported membrane industry lacks effective monitoring methods for this swaying. Operators face numerous difficulties in visually determining whether the swaying exceeds standards or whether the pressure differential matches actual weather conditions. They can only rely on the experience values ​​provided by the manufacturer when the air-supported coal yard is put into operation to set the pressure differential. Under severe weather conditions, excessive swaying can cause the external cable netting to break and deform, leading to membrane rupture and posing a significant hazard. Utility Model Content

[0004] The purpose of this invention is to provide a monitoring device for air film structures, which can realize dynamic monitoring of the displacement of the center point of the air film in a coal yard.

[0005] To achieve the above objectives, this utility model provides a monitoring device for an air-supported membrane structure, comprising a positioning mobile station, a positioning antenna, a positioning base station, and a data interface unit. The positioning antenna is installed on the top of the air-supported membrane and its weight is less than the bearing capacity limit of the air-supported membrane. The positioning mobile station is installed on the periphery of the air-supported membrane near a retaining wall. The positioning base station and the data interface unit are both installed in the equipment room of the distributed control system. The data collected by the positioning mobile station is transmitted to the positioning base station via Ethernet. The positioning mobile station and the positioning antenna are connected via a feeder line; The positioning base station data establishes data communication with the data processor of the distributed control system through a data interface using Modbus TCP communication.

[0006] The positioning antenna is mounted on the top of the air-supported membrane via a fixing assembly. The fixing assembly includes a mounting platform and a connector. The mounting platform is integrally disposed on the top of the air-supported membrane, and two platforms are provided, which are detachably connected to the positioning antenna. The connector is detachably connected to both the mounting platform and the positioning antenna.

[0007] When the positioning mobile station collects data and transmits it to the positioning base station, optical fiber transmission is used when the transmission distance exceeds 50 meters.

[0008] The positioning mobile station's interface consists of an Ethernet port, a 24 / 12V DC power supply interface, and a feeder interface.

[0009] The air-supported membrane center point displacement monitoring system uses BeiDou real-time differential positioning technology, which can acquire the latitude and longitude data of the air-supported membrane center point in real time. The horizontal positioning relative error is less than ±2cm, and the vertical positioning relative error is less than ±3cm.

[0010] This utility model discloses a monitoring device for an air-supported membrane structure. The main body of the data interface receives positioning data from two positioning mobile stations, processes the data, and transmits the collected data to the microcontroller in the distributed control system via the Modbus-TCP protocol. This achieves the purpose of detecting the real-time dynamic movement data of the air-supported membrane center point. After logic processing by the microcontroller in the distributed control system, the position of the air-supported membrane center point is transmitted in real time to the display device of the coal conveying distributed control system. An alarm is also output to the coal conveying light sign monitoring screen if the displacement of the air-supported membrane center point is greater than 2 meters, thereby realizing the dynamic monitoring of the displacement of the air-supported membrane center point in the coal yard. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0012] Figure 1 This is a schematic diagram of the overall structure of the monitoring device with air film structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the installation of the positioning antenna of this utility model.

[0014] In the diagram: 101-Distributed control system, 102-Positioning mobile station, 103-Positioning antenna, 104-Positioning base station, 105-Data interface unit body, 106-Mounting platform, 107-Connector, 108-Ethernet port, 109-24 / 12V DC power interface, 110-Feeder interface, 111-Feeder, 112-Air membrane. Detailed Implementation

[0015] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0016] like Figure 1 and Figure 2 As shown, where Figure 1 This is a schematic diagram of the overall structure of the air-supported membrane structure monitoring device. Figure 2This is a schematic diagram of the installation of the positioning antenna 103. This utility model provides a monitoring device for an air-supported membrane structure, including a distributed control system 101, a positioning mobile station 102, a positioning antenna 103, a positioning base station 104, a data interface unit 105, and a fixing assembly. The fixing assembly includes a mounting platform 106 and a connector 107. The aforementioned solution enables dynamic monitoring of the displacement of the center point of the air-supported membrane in a coal yard. It is understood that this solution can effectively improve the safety of the air-supported membrane operation by dynamically monitoring the displacement of the center point.

[0017] In this embodiment, the distributed control system 101 is existing technology. A distributed control system (DCS) is a distributed automation system built on a microprocessor basis, integrating computer, communication, display, and control technologies (4C technologies). Its core architecture follows the principle of "distributed control and centralized management," achieving risk dispersion and real-time response (10-500ms) through a multi-level hierarchical structure, and possessing high reliability (MTBF up to tens of thousands of hours) and modular design characteristics.

[0018] The positioning antenna 103 is installed on top of the air-supported membrane 112, and its weight is less than the load-bearing limit of the air-supported membrane 112. The positioning mobile station 102 is installed on the nearest retaining wall around the air-supported membrane 112. The positioning base station 104 and the main body of the data interface machine 105 are both installed in the equipment room of the distributed control system 101. The positioning mobile station 102 transmits the collected data to the positioning base station 104 via Ethernet. The positioning antenna 103 adopts BeiDou real-time differential positioning technology (RTK) to obtain the latitude and longitude data of the center point of the air-supported membrane in real time. The top of the air-supported membrane 112 structure bears a weight of about 100KG, and the weight of the positioning antenna 103 is less than 1KG. The positioning antenna 103 is an omnidirectional antenna, adopts a standard base station matching antenna, and includes a 1-meter NN jumper cable.

[0019] The positioning mobile station 102 and the positioning antenna 103 are connected via a feeder cable 111; the feeder cable 111 has a wear-resistant protective layer on the outside of its protective sleeve. The positioning mobile station 102 is a PJ2 model and has a dual-antenna structure.

[0020] The positioning base station 104 establishes data communication with the data processor of the distributed control system 101 via a data interface using Modbus TCP. The data interface unit 105 includes an Ethernet switch for port interconnection; for distances exceeding 50 meters, fiber optic transmission is used. The positioning base station 104 is connected to the distributed control system 101 via Ethernet, using the Modbus TCP communication protocol. The positioning base station 104 is model NG72.

[0021] Secondly, the mounting platform 106 is integrally mounted on the top of the air membrane 112, and two platforms are provided, which are detachably connected to the positioning antenna 103; the connector 107 is detachably connected to both the mounting platform 106 and the positioning antenna 103. The mounting platform 106 has a positioning circular hole, and a symmetrical rectangular groove is provided communicating with the positioning circular hole. A through-hole is also provided on the mounting platform 106. The base of the positioning antenna 103 has a mating through-hole to facilitate the installation of the connector 107. The connector 107 consists of a T-shaped screw and a nut. The connecting end of the positioning antenna 103 is electrically connected to the positioning mobile station 102 via the feed line 111.

[0022] Then, when the positioning mobile station 102 collects data and transmits it to the positioning base station 104, optical fiber transmission is used when the transmission distance exceeds 50 meters. Both the positioning mobile station 102 and the positioning base station 104 are connected to the data interface unit 105 and are connected via Ethernet.

[0023] Furthermore, the interface of the positioning mobile station 102 consists of an Ethernet port 108, a 24 / 12V DC power interface 109, and a feeder interface 110. The Ethernet port 108 is used for network cable connection, the 24 / 12V DC power interface 109 is used for power input settings, and the feeder interface 110 is used for connecting the feeder 111.

[0024] Finally, the displacement monitoring system for the center point of the air-supported membrane 112 adopts BeiDou real-time differential positioning technology, which can acquire the latitude and longitude data of the center point of the air-supported membrane 112 in real time. The horizontal positioning relative error is less than ±2cm, and the vertical positioning relative error is less than ±3cm. This structure helps to ensure positioning accuracy.

[0025] When using this invention to dynamically monitor the displacement of the air-supported membrane center point, the safety of air-supported membrane operation can be effectively improved. The main body 105 of the data interface receives positioning data from two positioning mobile stations 102. After processing, the collected data is transmitted to the microcontroller within the distributed control system 101 via the Modbus-TCP protocol to achieve the purpose of detecting real-time dynamic movement data of the air-supported membrane center point 112. After logic processing by the microcontroller within the distributed control system 101, the position of the air-supported membrane center point 112 is transmitted in real-time to the display device of the coal conveying distributed control system, and an alarm is output to the coal conveying light sign monitoring screen if the displacement of the air-supported membrane center point is greater than 2 meters. The microcontroller of the distributed control system 101 captures the real-time differential data from the positioning mobile stations 102 and sends it to the positioning base station 104. After differential calculation, the positioning base station 104 obtains positioning data in NMEA0183 format. After parsing the latitude and longitude data, it is converted to the field coordinate system through the geodetic coordinate system and sent to the distributed control system 101 via Modbus TCP in the form of X, Y, and Z. After the microprocessor of the microcontroller of the distributed control system 101 processes the internal logic, the position of the center point of the air-supported membrane 112 is transmitted in real time to the coal conveying light sign monitoring screen, and an alarm is output to the coal conveying light sign monitoring screen if the displacement of the center point of the air-supported membrane 112 is too large (greater than 2 meters). This enables dynamic monitoring of the displacement of the center point of the air-supported membrane in the coal yard, and the coal conveying operators can monitor the coordinates and displacement of the center point of the air-supported membrane 112 in the closed coal yard in real time. When the center point of the air-supported membrane shakes too much, an alarm can be set in time to remind the operators to increase the pressure difference of the air-supported membrane, providing a reliable basis for the operators' operation, thereby avoiding situations such as steel cable breakage and deformation, and air-supported membrane damage caused by air-supported membrane shaking, which can effectively improve the safety of air-supported membrane operation.

[0026] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A monitoring device for an air-supported membrane structure, comprising a positioning mobile station, a positioning antenna, a positioning base station, and a data interface unit, characterized in that: The positioning antenna is installed on the top of the air-supported membrane, and its weight is less than the bearing limit of the air-supported membrane. The positioning mobile station is installed on the nearest retaining wall around the air-supported membrane. The positioning base station and the main body of the data interface machine are both installed in the equipment room of the distributed control system. The positioning mobile station collects data and transmits it to the positioning base station via Ethernet. The positioning mobile station and the positioning antenna are connected via a feeder line; The positioning base station data establishes data communication with the data processor of the distributed control system through a data interface using Modbus TCP communication.

2. The monitoring device for air film structure as described in claim 1, characterized in that... : The positioning antenna is mounted on the top of the air-supported membrane via a fixing assembly. The fixing assembly includes a mounting platform and a connector. The mounting platform is integrally disposed on the top of the air-supported membrane, and two platforms are provided, which are detachably connected to the positioning antenna. The connector is detachably connected to both the mounting platform and the positioning antenna.

3. The monitoring device for air film structure as described in claim 1, characterized in that... : When the positioning mobile station collects data and transmits it to the positioning base station, optical fiber transmission is used when the transmission distance exceeds 50 meters.

4. The monitoring device for air film structure as described in claim 1, characterized in that... : The positioning mobile station's interface consists of an Ethernet port, a 24 / 12V DC power supply interface, and a feeder interface.

5. The monitoring device for air film structure as described in claim 1, characterized in that... : The air-supported membrane center point displacement monitoring system adopts BeiDou real-time differential positioning technology, which can acquire the latitude and longitude data of the air-supported membrane center point in real time. The horizontal positioning relative error is less than ±2cm, and the vertical positioning relative error is less than ±3cm.

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