CN215219896U

CN215219896U - Wireless transmission system suitable for intelligent transmitter

Info

Publication number: CN215219896U
Application number: CN202121227099.0U
Authority: CN
Inventors: 陈文博; 刘石林
Original assignee: Daye Special Steel Co Ltd
Current assignee: Daye Special Steel Co Ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-12-17
Anticipated expiration: 2031-06-02

Abstract

The utility model provides a wireless transmission system suitable for intelligence changer, wireless transmission system includes: the intelligent transmitter is arranged on production equipment at a site end of a steel plant and is used for acquiring parameter data of the production equipment in a production control process; the energy collection cabinets are arranged at a plurality of positions of the site end, and the energy collection cabinets and the production equipment are arranged at intervals; the energy collection cabinet comprises first wireless communication equipment, and the first wireless communication equipment is used for receiving the parameter data and forwarding the parameter data; the central acquisition cabinet comprises second wireless communication equipment, the second wireless communication equipment is communicated with the first wireless communication equipment, the second wireless communication equipment receives parameter data acquired by each energy acquisition cabinet, and then the parameter data are displayed through the data processing module. The method and the device can save cost and improve efficiency and safety.

Description

Wireless transmission system suitable for intelligent transmitter

Technical Field

The utility model belongs to the technical field of communication, concretely relates to wireless transmission system suitable for intelligent changer.

Background

Metallurgical enterprises involve many automated process control variables such as: temperature, pressure, flow, level, etc. Therefore, the instrument equipment is required to collect signals (namely parameter data) of the control variables at all places, various signals sent by the instrument equipment are mainly collected in a signal collection link, and then the signals are converted into electric signals, some of the signals are used for monitoring and directly displaying in a control room, and some of the signals are used as data for energy cost settlement. The meter device mainly refers to a measuring element capable of measuring signals such as temperature, pressure, flow rate, and level, for example, a transmitter for measuring a differential pressure of the flow rate, a 118 transmitter for measuring a liquid level, and the like.

The field end is provided with a plurality of measuring points, each measuring point adopts an intelligent transmitter to collect a signal at the measuring point, the collected signals are generally communicated through wired transmission, analog quantity generally starts from the measuring point to secondary instruments such as a midway distributor, an isolator and the like and then is uploaded to a collecting cabinet and the like, and switching value and the signal adopting RS485 communication can be directly transmitted to the secondary instruments or directly transmitted to the collecting cabinet; and finally, the acquisition cabinet sends the signal to a remote measurement and control terminal (RTU). The acquisition cabinet is generally arranged near the network center of a plurality of measuring points at the field end, so that various signals of the measuring points can be conveniently received.

When a wired transmission mode is adopted at present, the following problems exist:

(1) cables are arranged from each measuring point at the field end to the terminal, the distance of the cables is several meters and dozens of meters, and thousands of measuring points in one steel enterprise have high cost for cable consumption.

(2) Because the parameter data acquired by the intelligent transmitter needs to be transferred and transmitted by a plurality of secondary instruments connected by cables, and the like, when a measuring point has a fault, the problem of a wired cable also needs to be checked step by step; in addition, due to the influence of the service life of the cable, the natural aging phenomenon exists in the line, so that poor contact or short circuit occurs in a certain section of the line, and the precision and the stability of automatic control are influenced. When the faults are processed, it is difficult to find out which section of the line has the fault according to the length of the line, and in most cases, the fault is processed by means of re-paying-off. Not only the cost of the cable is aggravated, but also the maintenance of personnel by wired transmission signals is difficult to some extent.

(3) The steel industry relates to many harmful and dangerous environments such as coal gas, oxygen, crude benzene, high altitude and the like which are flammable and explosive, and because equipment adopts wired transmission, when personnel maintain the equipment, the instruments must be checked on site. The frequent access of the hazardous area inevitably leads to the risk of personal safety of the personnel and increases sharply.

Therefore, there is a need to provide an improved solution to the above-mentioned deficiencies in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a steel mill wireless transmission system suitable for intelligence changer for overcome the problem among the above-mentioned prior art.

In order to achieve the above purpose, the present application provides the following technical solutions:

a wireless transmission system adapted for use with an intelligent transmitter, the wireless transmission system comprising:

the intelligent transmitter is arranged on production equipment of a steel plant and is used for acquiring parameter data of the production equipment in the production process;

the system comprises at least two energy collection cabinets, a plurality of energy collection cabinets and a plurality of control units, wherein the energy collection cabinets are arranged at a plurality of positions of a site end and are arranged at intervals with production equipment; the energy collection cabinet comprises first wireless communication equipment, the first wireless communication equipment is in wireless communication connection with the intelligent transmitter, and the first wireless communication equipment is used for receiving the parameter data and forwarding the parameter data;

the central acquisition cabinet comprises second wireless communication equipment, the second wireless communication equipment is communicated with the first wireless communication equipment, and the parameter data of each energy acquisition cabinet is received through the second wireless communication equipment;

and the data processing module is connected with the central acquisition cabinet and is used for displaying the parameter data.

Furthermore, the first wireless communication device and the second wireless communication device are wireless controllers, and the wireless acquisition controller is provided with a wireless communication port and four analog input channels.

Further, the production equipment comprises a heating furnace, and correspondingly, the parameter data comprise gas temperature, gas flow and pressure.

Further, still include in the energy acquisition cabinet:

the functional unit is connected with the intelligent transmitter through a cable and comprises an isolator and a distributor, and the isolator and the distributor are used for shunting and isolating the parameter data;

and the secondary instrument is connected with the functional unit and displays the parameter data through the secondary instrument.

Furthermore, the central acquisition cabinet further comprises a wired communication unit, the wired communication unit is a cable, one end of the cable is connected with the second wireless communication equipment, and the other end of the cable is connected with the data processing module, and the cable is used for transmitting the parameter data in the central acquisition cabinet to the data processing module.

Further, the data processing module comprises:

the processor is used for converting the parameter data to obtain a processing result;

and the display unit is a liquid crystal display screen, and the processing result is displayed through the liquid crystal display screen.

Further, the data processing module further comprises a storage unit, and the storage unit is used for storing the parameter data and the processing result.

Furthermore, the energy collection cabinet is connected with at least five intelligent transmitters.

Has the advantages that:

the utility model provides a wireless transmission system suitable for intelligence changer, gather the parameter data of production facility in the production control process through intelligence changer, because the structure and the function of intelligence changer, can improve the precision of gathering parameter data, the energy collection cabinet sets up a plurality of positions of field end, acquire the parameter data that different intelligent changers in the small range gathered through the wireless communication mode, then the parameter data transmission that rethread wireless transmission mode gathered intelligent changer gathers to monitor terminal's center collection cabinet, use for monitor terminal, can show the information of the different production facility of steel mill field end through monitor terminal. The utility model discloses a wireless transmission mode can reduce wired transmission mode and cause the too high problem of cable cost, and wireless transmission can reduce the interference of circuit to fault handling in the maintenance process moreover, improves the efficiency of production and maintenance.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application. Wherein:

FIG. 1 is a schematic diagram of a wireless transmission system suitable for use with an intelligent transmitter of the present invention;

fig. 2 is a schematic diagram of the connection terminal of the wireless controller of the present invention.

Detailed Description

The present application will be described in detail below with reference to the embodiments with reference to the attached drawings. The various examples are provided by way of explanation of the application and are not limiting of the application. In fact, it will be apparent to those skilled in the art that modifications and variations can be made in the present application without departing from the scope or spirit of the application. For instance, features illustrated or described as part of one embodiment, can be used with another embodiment to yield a still further embodiment. It is therefore intended that the present application cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

In the automatic production process of steel plants, automatic control is generally accompanied, and the realization of the automatic control depends on various electrical parameter data detected by instrument equipment, in the application, the instrument equipment generally adopts an intelligent transmitter which is formed by combining a sensor and a microprocessor (microcomputer), and has the operation and storage capacity of the microprocessor at the same time, the data of the sensor can be processed, including conditioning (such as filtering, amplifying, A/D conversion and the like), data display, automatic correction, automatic compensation and the like of the measured parameter data, the microprocessor can not only calculate, store and process the measured data, but also adjust the sensor through a feedback loop so as to enable the collected data to be optimal. Therefore, the microprocessor in the intelligent transmitter has various software and hardware functions, so that the microprocessor can complete the tasks which are difficult to complete by the traditional transmitter, the intelligent transmitter reduces the manufacturing difficulty of the sensor and greatly improves the performance of the sensor. Based on the structure and the function of the intelligent transmitter, the efficiency and the performance of automatic production control can be improved.

The intelligent transmitter is arranged at a measuring point in the steel plant, wherein the measuring point refers to the position of equipment needing to measure parameter data in the production process of the steel plant, such as temperature, pressure and the like. Parameter data that passes through intelligent changer collection to the measurement station generally is transmitted through the wire casing that sets up between the collection cabinet in the factory, and the centre can be successively through secondary instrument equipment such as distributor and isolator, and to the operational environment of complicacy in the factory, no matter be unwrapping wire work or fault maintenance, all there is very big risk when carrying out the circuit judgement. Therefore, the application provides a steel mill wireless transmission system suitable for intelligent changer.

Fig. 1 is a schematic diagram of a wireless transmission system suitable for an intelligent transmitter according to the present application, and the following describes a technical solution of the wireless transmission system suitable for an intelligent transmitter according to the present application with reference to fig. 1.

In this application embodiment, a wireless transmission system suitable for intelligent changer includes: the intelligent transmitter, the at least two energy collecting cabinets, the central collecting cabinet and the data processing module; the intelligent transmitter is arranged on production equipment at a site end of a steel plant and is used for acquiring parameter data of the production equipment in the production process; the energy collection cabinets are arranged at a plurality of positions (at least five positions) at the site end of the steel plant, and the energy collection cabinets and the production equipment are arranged at intervals; the energy collection cabinet comprises first wireless communication equipment, and the first wireless communication equipment is in wireless communication with the intelligent transmitter and is connected with the first wireless communication equipment for receiving parameter data and forwarding the parameter data; the central acquisition cabinet is arranged at the monitoring terminal and comprises second wireless communication equipment, the second wireless communication equipment is communicated with the first wireless communication equipment, and the parameter data of each energy acquisition cabinet is received through the second wireless communication equipment; the data processing module is provided with a monitoring terminal, the data processing module is connected with the central acquisition cabinet, and the data processing module displays the parameter data.

The utility model provides a wireless transmission system suitable for intelligent changer, intelligent changer set up on steel mill's production facility, gather the parameter data of production facility in the production control process through intelligent changer, because the structure and the function of intelligent changer, can improve the precision of gathering the parameter data, the energy collection cabinet sets up a plurality of positions of scene end; and the utility model discloses to the parameter data that intelligent changer gathered, acquire through wireless communication mode to it all acquires the parameter data that different intelligent changers of within a small circle gathered to be every energy collection cabinet, then the parameter data transmission that the rethread wireless transmission mode gathered intelligent changer gathers to monitor terminal's center collection cabinet, can show the parameter data of the different production facility of steel mill scene end through monitor terminal at last. The utility model discloses a wireless transmission mode can reduce manufacturing enterprises such as steelmaking metallurgy and adopt wired transmission mode to cause the too high problem of cable cost at the instrument measurement, and wireless transmission can reduce the instrument and maintain the interference of in-process circuit to fault handling in addition, has greatly reduced the degree of difficulty when troubleshooting, simultaneously, also avoids adopting the emergence of the phenomenon that the unwrapping wire leads to the secondary incremental cost again because of the concrete fault point of unable troubleshooting circuit.

The first wireless communication equipment and the second wireless communication equipment are wireless controllers, the wireless controllers are equipment integrating simulation parameter data acquisition and wireless data transmission, wired communication ports and wireless communication ports are arranged, power isolation and parameter data isolation can be achieved, therefore, data transmission can be carried out, isolation interference in the communication process can be guaranteed, and accuracy of transmission parameter data is improved. The wireless controller is provided with four analog quantity input channels, can acquire standard parameter data such as 0-20mA, 4-20mA, 0-5V, 0-10V and the like, is suitable for acquiring various voltage and current parameter data of a steel plant site end, and improves the applicability of a wireless transmission system. The port information of the wireless controller is shown in table 1, and the corresponding connection terminal is shown in fig. 2.

In the embodiment of the application, the production equipment is a heating furnace, and the process of transmitting the parameter data collected by the intelligent transmitter by the wireless transmission system suitable for the intelligent transmitter is introduced based on the introduction.

In the production process of the heating furnace, in order to guarantee the production safety, the gas temperature, the gas flow and the pressure of the heating furnace need to be monitored, and therefore the parameter data acquired by the intelligent transmitter comprise the gas temperature, the gas flow and the pressure. Due to the complex environment of the heating furnace, the parameter data collected by the intelligent transmitter are transmitted to the energy collection cabinet in a wireless transmission mode, namely, the parameter data are received through first wireless communication equipment in the energy collection cabinet, and then the parameter data are converged through second wireless communication equipment and concentrated to the monitoring terminal.

As a further limitation to the wireless transmission system applicable to the intelligent transmitter, the energy collection cabinet of the utility model further comprises a functional unit and a secondary instrument, wherein the functional unit is connected with the intelligent transmitter through a cable, and comprises an isolator and a distributor for shunting and isolating the parameter data collected by the intelligent transmitter; the secondary instrument is connected with the functional unit and displays parameter data of the parameter data through the secondary instrument. In the embodiment of the present application, the functional units include an isolator and a power distributor, but the above description is not a limitation to the present application, and the functional units may be arranged according to the requirements of the actual application.

As a preferred embodiment, the utility model discloses an energy acquisition cabinet connects two intelligent transmitters at least, and the energy acquisition cabinet is close to a plurality of production facility settings, can acquire the parameter data that intelligent transmitter gathered on a plurality of production facility simultaneously, reduces the quantity of energy acquisition cabinet, saves the cost.

As the preferred scheme of the wireless transmission system, the central acquisition cabinet further comprises a wired communication unit, the wired communication unit is a cable, one end of the cable is connected with the second wireless communication equipment, and the other end of the cable is connected with the data processing module and used for transmitting the parameter data in the central acquisition cabinet to the data processing module.

According to the method and the system, the wireless transmission function can be completed, the parameter data can be transmitted to the data processing module in a close range through wired transmission at the monitoring terminal, wired transmission is performed through a cable, and the cost can be saved.

The data processing module of the monitoring terminal comprises a processor and a display unit, and the processor converts the parameter data to obtain a processing result; the display unit is a liquid crystal display screen, and the processing result is displayed through the liquid crystal display screen.

In the present application, the processing procedure of the processor is not specifically limited, and the specific processing manner and the processing procedure are set by itself according to the control requirement, for example, for some parameter data, only the protocol format conversion is performed; some parameter data need conversion processing such as calculation to obtain the required information. The processing result obtained after the processor converts the parameter data can be directly displayed through the liquid crystal display screen, so that the staff can more visually see the corresponding information at the production equipment.

The data processing module further comprises a storage unit, and the storage unit is used for storing parameter data and processing results of the production equipment in the production control process.

The storage unit of this application not only stores the processing result that production facility in production control process and treater processing obtained, that is to say that monitor terminal both stores original parameter data, also has the indirect result after handling, and the staff of being convenient for transfers information and analyzes, also can carry out information comparison to seek problem and accurate maintaining.

To sum up, the utility model is suitable for a wireless transmission system of intelligent changer has following advantage:

(1) by adopting the wireless communication equipment (wireless controller) to replace the existing wired transmission equipment, the idle time from a field end measuring point (production equipment) to the energy collection cabinet is reduced, the consumption of cable cost for wired transmission in instrument measurement can be effectively reduced, and the cost can be effectively reduced.

(2) The method and the device have the advantages that interference of the intermediate cable to the measurement process is avoided by adopting wireless transmission, and the further increase of the cable cost caused by difficulty in maintenance and re-paying-off due to the reason that the line problem is difficult to be checked by workers can be effectively reduced.

(3) The wireless communication equipment (wireless controller) can directly utilize the module to set parameters, and can utilize the parameters of the wireless detection equipment to maintain the instruments of the production equipment under the condition that most of non-equipment is damaged. In the steel industry, the number of people coming in and going out of dangerous areas can be greatly reduced, and the safety is a major breakthrough.

(4) The communication interface of the wireless communication equipment (wireless controller) comprises a wired communication interface and a wireless communication interface, the wireless communication interface supports RS232 and RS485 transmission protocols, and acquired standard parameter data such as 4-20mA, 1-5V and the like can be restored into parameter data which can be read by an upper computer again through the parameter data converted by the wireless acquisition controller, so that the data monitored by various process requirements of field end production equipment are met.

The above embodiments are only for illustrating the technical solutions of the present application and not for limiting the same, and although the present application is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.

Claims

1. A wireless transmission system adapted for use with an intelligent transmitter, the wireless transmission system comprising:

2. The wireless transmission system for the intelligent transmitter of claim 1, wherein the first wireless communication device and the second wireless communication device are wireless controllers, and the wireless controllers are provided with wireless communication ports and are configured with four analog input channels.

3. The wireless transmission system of claim 1, wherein the parametric data includes gas temperature, gas flow, and pressure.

4. The wireless transmission system suitable for intelligent transmitters of claim 1 further comprising, within the energy collection cabinet:

5. The wireless transmission system suitable for the intelligent transmitter according to claim 1, wherein the central collection cabinet further comprises a wired communication unit, the wired communication unit is a cable, one end of the cable is connected to the second wireless communication device, and the other end of the cable is connected to the data processing module, and the cable is used for transmitting the parameter data in the central collection cabinet to the data processing module.

6. The wireless transmission system for intelligent transmitters of claim 1 wherein the data processing module comprises:

7. The wireless transmission system for intelligent transmitters of claim 6 wherein the data processing module further comprises a memory unit for storing the parameter data and the processing results.

8. The wireless transmission system for intelligent transmitters of claim 1 wherein the energy collection cabinet is coupled to at least five intelligent transmitters.