CN103763522A - System and method for data transmission of low coal seam fully mechanized coal mining face - Google Patents
System and method for data transmission of low coal seam fully mechanized coal mining face Download PDFInfo
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- CN103763522A CN103763522A CN201310751644.XA CN201310751644A CN103763522A CN 103763522 A CN103763522 A CN 103763522A CN 201310751644 A CN201310751644 A CN 201310751644A CN 103763522 A CN103763522 A CN 103763522A
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Abstract
The invention discloses a system and method for data transmission of a low coal seam fully mechanized coal mining face. The system comprises a communication interface unit and an electric power data conversion module. The electric power data conversion module comprises a kernel processing unit, a program storage unit, a data storage unit, an analog front end unit and an Ethernet transmit-receive unit, wherein the kernel processing unit is used for control and communication, the program storage unit is used for storing debugged user programs, the data storage unit is used for achieving code execution and data storage, the analog front end unit is used for converting analog signals processed by the kernel processing unit into electric power signals, the kernel processing unit is respectively connected with the program storage unit, the data storage unit, the analog front end unit and the Ethernet transmit-receive unit, and the Ethernet transmit-receive unit is connected with the communication interface unit which is used for converting the electric power signals into TCP/IP signals. Mutual conversion between the TCP/IP signals and the electric power signals can be achieved, signal attenuation of the electric power signals in a transmission process can be reduced effectively, the transmission distance of the signals is made to be long, and the antijamming capability of the signals is made to be strong.
Description
Technical field
The present invention relates to a kind of data transmission system and method, specifically a kind of thin coal bed fully-mechanized mining face data transmission system and method.
Background technology
Along with the continuous minimizing of coal reserves in world wide, each state all more and more payes attention to the thin seam mining that coal seam thickness is less than 1.3m.In China, girdle has aboundresources and widely distributed feature, and its storage capacity accounts for the more than 1/5th of national coal gross storage capacity.According to related data, show, in the mining area that China has been verified, the distribution of girdle has accounted for 84% left and right in mining area.
Modern Pit has proposed the theory of the visual working face of few people, at fully-mechanized mining working distributing multiple speech ciphering equipments and video-unit, makes ground maneuvers chamber can monitor in real time the working condition of fully-mechanized mining working personnel, machine.In order to detect the operating state of coal mining machine in full-mechanized mining face, the state parameter of the coal-winning machine that airborne coal-winning machine Programmable Logic Controller need to be surveyed is sent to ground maneuvers chamber.
At medium-thickness seam, fully-mechanized mining working has successfully used wireless data transmission device transmission working face data.At thin coal bed fully-mechanized mining face, because coal seam is thinner, particularly densely covered hydraulic support, scratch board conveyor and the coal-winning machine of thin coal bed fully-mechanized mining face, causes working face narrow space, and real-time, stability and the reliability of wireless signal are all difficult to reach requirement.
The wire transmission method that existing fully-mechanized mining working adopts, its shortcoming is wiring complexity, system is huge, equipment heaviness, signal transmission is unstable.Power carrier is the distinctive communication mode of electric power system, and power carrier communication refers to and utilizes existing power line, by carrier system, analog or digital signal carried out to the technology of high-speed transfer.Maximum feature is not need again to set up network, as long as live wire just can carry out data transmission.But because power line can cause reduction to carrier signal, therefore the transmission range of electric power signal reduces along with the increase of the load capacity in power line; The condition of work of girdle makes power line need very large load, and when load on power line is very heavy, line impedance will increase, and can have very high reduction to carrier signal.
Summary of the invention
The problem existing for above-mentioned prior art, the invention provides a kind of thin coal bed fully-mechanized mining face data transmission system, wiring is simple, TCP/IP signal and electric power signal can be changed mutually, reduce the signal of electric power signal in transmitting procedure simultaneously effectively and cut down, make the transmission range of signal long, antijamming capability is strong.
To achieve these goals, the technical solution used in the present invention is: this thin coal bed fully-mechanized mining face data transmission system, comprise multiple transfer of data groups, ring exchanger and the airborne Programmable Logic Controller of coal-winning machine, and between transfer of data group, by quad, connect; Described quad is comprised of two supply lines and two electric power signal lines, and ring exchanger is connected by fire-retardant netting twine with one of them transfer of data group; Described transfer of data group is comprised of voice transmitting-receiving device, video-unit and electric power data transmitting device, electric power data transmitting device is connected by fire-retardant netting twine with voice transmitting-receiving device, video-unit is connected by quad with electric power data transmitting device, and the airborne Programmable Logic Controller of coal-winning machine is connected with ring exchanger with quad by two electric power data transmitting devices.
Further, described electric power data transmitting device comprises communication interface unit and electric power data modular converter;
Described electric power data modular converter comprises for controlling and the core processing unit of communication, for depositing the program storage unit (PSU) of tested user program, for the data storage cell of code execution and data storage, Ethernet Transmit-Receive Unit and for analog signal after treatment core processing unit being converted to the analog front-end unit of electric power signal, core processing unit respectively with program storage unit (PSU), data storage cell, analog front-end unit is connected with Ethernet Transmit-Receive Unit, Ethernet Transmit-Receive Unit with for the communication interface unit that electric power signal is converted to TCP/IP signal, be connected.
Further, described core processing unit is the control chip based on HomePlugAV technical standard.
Further, described program storage unit (PSU) is high-speed synchronous dynamic random access memory.
A kind of thin coal bed fully-mechanized mining face data transmission method, its concrete steps are:
(1) video-unit and voice transmitting-receiving device are by the data of collection, pass to electric power data transmitting device with TCP/IP signal;
(2) the Ethernet Transmit-Receive Unit in electric power data transmitting device receives TCP/IP signal, then passes the signal to core processing unit;
(3) signal that in core processing unit caller memory cell and data storage cell, executive program and data send video-unit and voice transmitting-receiving device carries out after modulation /demodulation converts analog signal to being sent to analog front-end unit;
(4) analog front-end unit is carried out modulation /demodulation to it again and is converted electric power signal to;
(5) electric power signal be loaded in quad in two electric power signal lines and be transferred in the electric power data transmitting device being connected with ring exchanger, in the transmitting procedure between electric power data transmitting device, not carrying out data processing;
(6) electric power signal that in the core processing unit caller memory cell in the electric power data transmitting device being connected with ring exchanger and data storage cell, executive program and data mutual transmission are brought carries out modulation /demodulation and converts to after analog signal, pass to communication interface unit, communication interface unit converts analog signal to TCP/IP signal and passes to ring exchanger;
(7) signal processing of the airborne Programmable Logic Controller of coal-winning machine is identical with the signal processing of above-mentioned voice transmitting-receiving device and video-unit, finally signal is passed to ring exchanger.
The present invention can monitor the staff of thin coal bed fully-mechanized mining face and the operating state of machine by video-unit in real time, by voice transmitting-receiving device, thin seam working surface staff's scheduling can be carried out, the coal-winning machine real-time working state of the airborne Programmable Logic Controller storage of coal-winning machine can be monitored simultaneously; Compared with prior art, the present invention, by electric power data transmitting device and quad, converts the TCP/IP signal in transfer of data to electric power signal, and carries out the transmission of electric power signal by two electric power signal lines in quad; Due to the state of these two electric power signal lines in zero load; Therefore power line is very little to electric power signal reduction, thereby improves electric power signal transmission range, guarantees in signals transmission reliable and stable; Have wiring simple compared with other cable data transmission meanss of existing fully-mechanized mining working, antijamming capability is strong, the advantage of long transmission distance.
Accompanying drawing explanation
Fig. 1 is electrical schematic diagram of the present invention;
Fig. 2 is the electrical schematic diagram of electric power data transmitting device in the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As depicted in figs. 1 and 2, this thin coal bed fully-mechanized mining face data transmission system, comprises multiple transfer of data groups, ring exchanger and the airborne Programmable Logic Controller of coal-winning machine, between transfer of data group, by quad, connects; Described quad is comprised of two supply lines and two electric power signal lines, and ring exchanger is connected by fire-retardant netting twine with one of them transfer of data group; Described transfer of data group is comprised of voice transmitting-receiving device, video-unit and electric power data transmitting device, electric power data transmitting device is connected by fire-retardant netting twine with voice transmitting-receiving device, video-unit is connected by quad with electric power data transmitting device, and the airborne Programmable Logic Controller of coal-winning machine is connected with ring exchanger with quad by two electric power data transmitting devices.
Further, described electric power data transmitting device comprises communication interface unit and electric power data modular converter;
Described electric power data modular converter comprises for controlling and the core processing unit of communication, for depositing the program storage unit (PSU) of tested user program, for the data storage cell of code execution and data storage, Ethernet Transmit-Receive Unit and for analog signal after treatment core processing unit being converted to the analog front-end unit of electric power signal, core processing unit respectively with program storage unit (PSU), data storage cell, analog front-end unit is connected with Ethernet Transmit-Receive Unit, Ethernet Transmit-Receive Unit with for the communication interface unit that electric power signal is converted to TCP/IP signal, be connected.
Further, described core processing unit is the control chip based on HomePlugAV technical standard.
Further, described program storage unit (PSU) is high-speed synchronous dynamic random access memory.
A kind of thin coal bed fully-mechanized mining face data transmission method, its concrete steps are:
(1) video-unit and voice transmitting-receiving device are by the data of collection, pass to electric power data transmitting device with TCP/IP signal;
(2) the Ethernet Transmit-Receive Unit in electric power data transmitting device receives TCP/IP signal, then passes the signal to core processing unit;
(3) signal that in core processing unit caller memory cell and data storage cell, executive program and data send video-unit and voice transmitting-receiving device carries out after modulation /demodulation converts analog signal to being sent to analog front-end unit;
(4) analog front-end unit is carried out modulation /demodulation to it again and is converted electric power signal to;
(5) electric power signal be loaded in quad in two electric power signal lines and be transferred in the electric power data transmitting device being connected with ring exchanger, in the transmitting procedure between electric power data transmitting device, not carrying out data processing;
(6) electric power signal that in the core processing unit caller memory cell in the electric power data transmitting device being connected with ring exchanger and data storage cell, executive program and data mutual transmission are brought carries out modulation /demodulation and converts to after analog signal, pass to communication interface unit, communication interface unit converts analog signal to TCP/IP signal and passes to ring exchanger;
(7) signal processing of the airborne Programmable Logic Controller of coal-winning machine is identical with the signal processing of above-mentioned voice transmitting-receiving device and video-unit, finally signal is passed to ring exchanger.
Claims (5)
1. a thin coal bed fully-mechanized mining face data transmission system, is characterized in that, comprises multiple transfer of data groups, ring exchanger and the airborne Programmable Logic Controller of coal-winning machine, between transfer of data group, by quad, connects; Described quad is comprised of two supply lines and two electric power signal lines, and ring exchanger is connected by fire-retardant netting twine with one of them transfer of data group; Described transfer of data group is comprised of voice transmitting-receiving device, video-unit and electric power data transmitting device, electric power data transmitting device is connected by fire-retardant netting twine with voice transmitting-receiving device, video-unit is connected by quad with electric power data transmitting device, and the airborne Programmable Logic Controller of coal-winning machine is connected with ring exchanger with quad by two electric power data transmitting devices.
2. the thin coal bed fully-mechanized mining face data transmission system of one according to claim 1, is characterized in that, described electric power data transmitting device comprises communication interface unit and electric power data modular converter;
Described electric power data modular converter comprises for controlling and the core processing unit of communication, for depositing the program storage unit (PSU) of tested user program, for the data storage cell of code execution and data storage, Ethernet Transmit-Receive Unit and for analog signal after treatment core processing unit being converted to the analog front-end unit of electric power signal, core processing unit respectively with program storage unit (PSU), data storage cell, analog front-end unit is connected with Ethernet Transmit-Receive Unit, Ethernet Transmit-Receive Unit with for the communication interface unit that electric power signal is converted to TCP/IP signal, be connected.
3. the thin coal bed fully-mechanized mining face data transmission system of one according to claim 1, is characterized in that, described core processing unit is the control chip based on HomePlugAV technical standard.
4. the thin coal bed fully-mechanized mining face data transmission system of one according to claim 1, is characterized in that, described program storage unit (PSU) is high-speed synchronous dynamic random access memory.
5. a thin coal bed fully-mechanized mining face data transmission method, is characterized in that, its concrete steps are:
(1) video-unit and voice transmitting-receiving device are by the data of collection, pass to electric power data transmitting device with TCP/IP signal;
(2) the Ethernet Transmit-Receive Unit in electric power data transmitting device receives TCP/IP signal, then passes the signal to core processing unit;
(3) signal that in core processing unit caller memory cell and data storage cell, executive program and data send video-unit and voice transmitting-receiving device carries out after modulation /demodulation converts analog signal to being sent to analog front-end unit;
(4) analog front-end unit is carried out modulation /demodulation to it again and is converted electric power signal to;
(5) electric power signal be loaded in quad in two electric power signal lines and be transferred in the electric power data transmitting device being connected with ring exchanger, in the transmitting procedure between electric power data transmitting device, not carrying out data processing;
(6) electric power signal that in the core processing unit caller memory cell in the electric power data transmitting device being connected with ring exchanger and data storage cell, executive program and data mutual transmission are brought carries out modulation /demodulation and converts to after analog signal, pass to communication interface unit, communication interface unit converts analog signal to TCP/IP signal and passes to ring exchanger;
(7) signal processing of the airborne Programmable Logic Controller of coal-winning machine is identical with the signal processing of above-mentioned voice transmitting-receiving device and video-unit, finally signal is passed to ring exchanger.
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| CN106507051A (en) * | 2016-11-21 | 2017-03-15 | 广州日滨科技发展有限公司 | A kind of fully-mechanized mining working is electro-hydraulic to control integrated video Transmission system and method |
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| CN104144324A (en) * | 2014-08-29 | 2014-11-12 | 苏州福德保瑞科技发展有限公司 | Mining fully-mechanized coal mining face network video monitoring system |
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| CN106507051A (en) * | 2016-11-21 | 2017-03-15 | 广州日滨科技发展有限公司 | A kind of fully-mechanized mining working is electro-hydraulic to control integrated video Transmission system and method |
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Application publication date: 20140430 |