CN201813449U - Mine flameproof and intrinsically safe signal converter and system - Google Patents
Mine flameproof and intrinsically safe signal converter and system Download PDFInfo
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- CN201813449U CN201813449U CN2010201643354U CN201020164335U CN201813449U CN 201813449 U CN201813449 U CN 201813449U CN 2010201643354 U CN2010201643354 U CN 2010201643354U CN 201020164335 U CN201020164335 U CN 201020164335U CN 201813449 U CN201813449 U CN 201813449U
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Abstract
The utility model provides a mine flameproof and intrinsically safe signal converter and a system. The system comprises the signal converter, a repeater and a corresponding explosion-proof box, wherein the signal converter is mounted beside an underground telephone which is arranged underground and near to a coal machine and respectively connected with the coal machine, the underground telephone and an underground telephone line; and the repeater is mounted in the underground telephone line. Real-time data of the attached coal machine is collected through a matching software program after electrification, and protocol conversion and transmission are automatically carried out. The system does not need to lay an optical cable or a cable line independently, a telephone network which exists universally in a coal mine is utilized for carrying out transmission of signals of the coal machine without affecting the use of the underground telephone, the implementation cost of the coal mine is reduced, and the system is safe and reliable. The system is in line with the national coal mine safety requirement, has the advantages of high safety coefficient, stability, reliability, no manual operation and the like, and is applicable to a variety of coal machine equipment for digging, mining, protecting and the like.
Description
Technical field
The utility model relates to the communication technical field in the coal mine environment, particularly a kind of mine flame-proof and intrinsic safety type signal converter and system.
Background technology
At present, in Coal Production, the data message of down-hole coal machine collection need be sent to aboveground control appliance usually, the information such as order that control appliance is sent are sent to the down-hole.Aboveground underground communica tion generally adopts the wire communication mode, and the medium that carries out wire communication mostly is materials such as optical cable, cable, and wherein twisted-pair cable is comparatively universal, adopts the mode of directly laying communication media in the down-hole to dispose its communication network usually.In communication process, different according to technology and environment, the medium that needs is also different, lays optical cable etc. as the fiber optic Ethernet Technology Need.
In existing Coal Production, mostly the conversion of signals of down-hole, wire transmission are to adopt optical fiber, controller local area network (CAN, Controller Area Network) communication technologys such as bus, voice modulation demodulation, all require under mine, to be equipped with communication network environments such as optical cable, cable, and independently take at least one circuit to communicate.That is to say, in the prior art,, need lay a communication line separately in the down-hole and communicate for the transmission of coal machine signal.Because the difference of each coal mine environment makes aboveground down-hole distance not wait from several kilometers to tens kilometers, for the mining cable of rice valuation, cost is too high for distance for this.
In research and practice process to prior art, inventor of the present utility model finds that in the existing implementation, the communication line that need lay a special use in the down-hole separately carries out the transmission of coal machine signal, and its cost is too high.
The utility model content
The utility model embodiment provides a kind of mine flame-proof and intrinsic safety type signal converter and system, utilizes down-hole telephone set network to realize the automatic conversion and the transmission of coal machine signal, reduces cost.
For solving the problems of the technologies described above, the utility model is that embodiment provides a kind of mine flame-proof and intrinsic safety type signal converter, be positioned at by the telephone set machine of down-hole, mine flame-proof and intrinsic safety type signal converter comprises: protocol converter, modulator-demodulator and separator, modulator-demodulator is connected with separator with protocol converter respectively by cable, and separator also is connected with telephone wire, wherein
Described protocol converter, the up coal machine conversion of signals that the coal machine that is used for receiving sends becomes up ethernet signal, and described up ethernet signal is sent to modulator-demodulator;
Described modulator-demodulator, the described up ethernet signal that is used for receiving are modulated into and are fit to send to separator after the defeated up high frequency analog signals of phone line;
Described separator is used for the described up high frequency analog signals that receives is transmitted by telephone wire according to the frequency division multiplexing mode;
And/or
Described separator, the descending high frequency analog signals that is used for receiving by described telephone wire transmission is sent to modulator-demodulator;
Described modulator-demodulator sends to protocol converter after being used for the described descending high frequency analog signals that described separator sends is demodulated to the downlink Ethernet signal;
Described protocol converter transmits feeder after the downlink Ethernet conversion of signals that the described modulator-demodulator that is used for receiving sends becomes descending coal machine signal.
Optionally, described signal converter also comprises: the phone xegregating unit, wherein,
Described phone xegregating unit is used for the ascending voice signal that receives the telephone set transmission of connected down-hole is carried out isolation processing, and the ascending voice signal after the isolation processing is sent to described separator;
Described separator, also be used to receive the ascending voice signal that described phone xegregating unit sends, and described ascending voice signal and up high frequency analog signals are carried out low-and high-frequency handle, obtain up composite signal, and described up composite signal is transmitted by telephone wire according to the frequency division multiplexing mode;
And/or
Described separator, also be used for becoming descending high frequency analog signals and downlink voice signal with receiving by the descending coal machine of described telephone wire transmission and the downlink composite Signal Separation of voice, and described descending high frequency analog signals sent to modulator-demodulator, described downlink voice signal is sent to the phone xegregating unit;
Described phone xegregating unit is used for the downlink voice signal that receives described separator transmission is carried out sending to described down-hole telephone set after the isolation processing.
Optionally, described up coal machine signal is: upload control device local area network (LAN) CAN signal; Described descending coal machine signal is descending CAN signal.
Optionally, described separator comprises at least: signaling interface, telephony interface and cable interface, wherein,
Described separator receives the up high frequency analog signals that described modulator-demodulator sends by signaling interface;
Described separator receives the ascending voice signal that described phone xegregating unit sends by telephony interface;
Described separator transmits by telephone wire according to the frequency division multiplexing mode by the described up high frequency analog signals that cable interface will receive;
And/or
Described separator sends the downlink Ethernet signal by signaling interface to described modulator-demodulator;
Described separator sends the downlink voice signal by telephony interface to described phone xegregating unit;
Described separator receives the downlink composite signal that transmits by described telephone wire by cable interface.
Optionally, described mine flame-proof and intrinsic safety type signal converter is integrated in the signal converter explosion-proof tank, or independent the deployment.
Accordingly, the utility model also provides a kind of mine flame-proof and intrinsic safety type signal converting system, described system comprises: mine flame-proof and intrinsic safety type signal converter, coal machine and down-hole telephone set, mine flame-proof and intrinsic safety type signal converter is connected with the down-hole telephone set with the coal machine respectively by optical cable, wherein
Described coal machine is used for sending up coal machine signal to mine flame-proof and intrinsic safety type signal converter;
Described mine flame-proof and intrinsic safety type signal converter, being used for receiving the up coal machine conversion of signals that the coal machine sends is up ethernet signal, and will described up ethernet signal be modulated into and be fit to transmit by telephone wire according to the frequency division multiplexing mode after the up high frequency analog signals that phone line fails;
And/or
Described mine flame-proof and intrinsic safety type signal converter, be used for will receive descending high frequency analog signals by described telephone wire transmission be demodulated to the downlink Ethernet signal, send feeder after described ethernet signal is converted to descending coal machine signal;
Described coal machine is used to receive the descending coal machine signal that mine flame-proof and intrinsic safety type signal converter sends.
Optionally, described mine flame-proof and intrinsic safety type signal converter, the ascending voice signal that also is used for receiving the telephone set transmission of described down-hole carries out isolation processing, and the ascending voice signal after the isolation processing and described up high frequency analog signals are carried out low-and high-frequency handle, obtain up composite signal, and described up composite signal is transmitted by telephone wire according to the frequency division multiplexing mode; And/or, become descending high frequency analog signals and downlink voice signal with receiving by the descending coal machine of described telephone wire transmission and the downlink composite Signal Separation of voice, and described descending high frequency analog signals is demodulated to the downlink Ethernet signal, send feeder after described ethernet signal is converted to descending coal machine signal, described downlink voice signal is carried out sending to the down-hole telephone set after the isolation processing.
Optionally, described system also comprises:
Repeater is connected by telephone wire with separator, is used for the up coal machine signal of up high frequency analog signals on the described telephone wire or up composite signal is amplified, and realizes long-distance transmissions; And/or be used for the descending coal machine signal of descending coal machine signal on the described telephone wire or downlink composite signal is amplified, realize long-distance transmissions.
Optionally, described repeater is integrated in the repeater explosion-proof tank, or independent the deployment.
Optionally, described mine flame-proof and intrinsic safety type signal converter such as above-mentioned.
As shown from the above technical solution, technical scheme described in the utility model need not be laid down-hole optical cable or cable line separately, utilizes the telephone line network under the mine, can realize the conversion and the transmission of coal machine signal; Simultaneously, do not influence the use of down-hole telephone set in the transmission of coal machine signal, promptly when mine flame-proof and intrinsic safety type signal converter was worked, when utilizing telephone wire to pass the coal conveyor signal, the telephone set of down-hole can normally carry out voice communication.That is to say that the utility model utilizes in the colliery ubiquitous telephone network to carry out the signal transmission and communicates by letter, and need not lay optical cable or cable line separately, has reduced the implementation cost in colliery, and is safe and reliable.
Description of drawings
The structural representation of a kind of mine flame-proof and intrinsic safety type signal converter that Fig. 1 provides for the utility model;
Another structural representation of a kind of mine flame-proof and intrinsic safety type signal converter that Fig. 2 provides for the utility model;
The structural representation of a kind of mine flame-proof and intrinsic safety type signal converting system that Fig. 3 provides for the utility model;
The application example structural representation of a kind of mine flame-proof and intrinsic safety type signal converting system that Fig. 4 provides for the utility model;
The assembling schematic diagram of a kind of mine flame-proof and intrinsic safety type signal converting system that Fig. 5 provides for the utility model;
The electrical schematic diagram of a kind of mine flame-proof and intrinsic safety type signal converting system that Fig. 6 provides for the utility model.
Embodiment
In order to make those skilled in the art person understand the scheme of the utility model embodiment better, the utility model embodiment is described in further detail below in conjunction with drawings and embodiments.
See also Fig. 1, the structural representation of a kind of mine flame-proof and intrinsic safety type signal converter that provides for the utility model; Described mine flame-proof and intrinsic safety type signal converter comprises: protocol converter 11, and modulator-demodulator 12 and separator 13, modulator-demodulator 12 is connected with separator 13 with protocol converter 11 respectively by cable, and separator 13 also is connected with telephone wire, wherein,
Described protocol converter 11, the up coal machine conversion of signals that the coal machine that is used for receiving sends becomes up ethernet signal, and described up ethernet signal is sent to modulator-demodulator 12; And/or, become behind the descending coal machine signal by the cable transmission feeder receiving downlink Ethernet conversion of signals that described modulator-demodulator 12 sends; That is to say that protocol converter 11 can be realized the agreement exchange of coal machine signal CAN bus protocol and Ethernet Modbus agreement.
Described modulator-demodulator 12, the described up ethernet signal that is used for receiving after protocol converter 11 is changed is modulated into the defeated up high frequency analog signals of suitable phone line, and described up high frequency analog signals is sent to separator 13; And/or the described descending high frequency analog signals that described separator 13 is sent is demodulated to the downlink Ethernet signal, and described downlink Ethernet signal is sent to protocol converter 11;
Described separator 13 is used for the described up high frequency analog signals that receives after modulator-demodulator 12 is modulated is transmitted by telephone wire according to the frequency division multiplexing mode; And/or, the descending high frequency analog signals that receives by the telephone wire transmission is sent to modulator-demodulator 12.
The utility model provides a kind of mine flame-proof and intrinsic safety type signal converter, need not lay down-hole optical cable or cable line separately, can independently take under the prerequisite of communication line not needing, utilize the telephone line network under the mine, realize the conversion and the transmission of coal machine signal; Simultaneously, because with the high frequency analog signals of coal machine conversion of signals for suitable telephone wire transmission, and the voice transfer signal is a low-frequency analog signal, therefore, the transmission of this coal machine signal does not influence the use of down-hole telephone set, promptly when mine flame-proof and intrinsic safety type signal converter was worked, when utilizing telephone wire to pass the coal conveyor signal, the telephone set of down-hole can normally carry out voice communication.
Also see also Fig. 2, another structural representation for a kind of mine flame-proof and intrinsic safety type signal converter of providing in the utility model, at this as described in Figure 1 on the basis of embodiment, described mine flame-proof and intrinsic safety type signal converter can also comprise: phone xegregating unit 14, its structural representation sees Fig. 2 for details, described phone xegregating unit 14 is used for the ascending voice signal that receives the telephone set transmission of connected down-hole is carried out isolation processing, and the ascending voice signal after the isolation processing is sent to described separator; Its isolation former because: contain ac signal in the voice signal that on telephone line, transmits, be used for powering to telephone set; Contain audio frequency transformer in the phone isolation module, can carry out transformation, make it reach intrinsically safe circuit safety requirements (not producing electric spark) ac signal; The purpose of its isolation is exactly: the telephone set that use the down-hole has intrinsic safety, explosion-proof two kinds, and wherein the intrinsic safety telephone set requires its Telephone Cable that articulates must satisfy the intrinsically safe circuit safety requirements.Through after the isolation processing, the utility model just can articulate the intrinsic safety telephone set.(as articulate antiexplosion telephone, then the phone xegregating unit can remove; And/or, the downlink voice signal that receives described separator 13 transmissions is carried out isolation processing, and the downlink voice signal after the isolation processing is sent to described down-hole telephone set; Wherein, described separator 13, also be used to receive the described ascending voice signal that the phone xegregating unit sends, and described ascending voice signal and up high frequency analog signals are carried out low-and high-frequency handle, obtain up composite signal, and described up composite signal transmitted by telephone wire according to the frequency division multiplexing mode, be transferred to aboveground corresponding equipment by telephone wire; And/or, become descending high frequency analog signals and downlink voice signal with receiving by the descending coal machine of described telephone wire transmission and the downlink composite Signal Separation of voice, and described descending high frequency analog signals sent to modulator-demodulator 12, described downlink voice signal is sent to phone xegregating unit 14.
In this embodiment, described up coal machine signal is a digital signal, and above in this embodiment line control unit local area network (LAN) CAN signal is an example, but is not limited to this; Accordingly, described descending coal machine signal is an example with descending CAN signal also, but is not limited to this.
Optionally, in this embodiment, described separator comprises at least: signaling interface, telephony interface and cable interface, wherein, described separator receives the up high frequency analog signals that described modulator-demodulator sends by signaling interface, and/or, send the downlink Ethernet signal by signaling interface to described modulator-demodulator;
Described separator receives the ascending voice signal that described phone xegregating unit sends by telephony interface, and/or sends the downlink voice signal by telephony interface to described phone xegregating unit;
Described separator transmits by telephone wire according to the frequency division multiplexing mode by the described up high frequency analog signals that cable interface will receive; And/or receive downlink composite signal by the transmission of described telephone wire by cable interface.
Optionally, in this embodiment, described mine flame-proof and intrinsic safety type signal converter can be integrated in the signal converter explosion-proof tank, also can independent part be deployed in the down-hole, and present embodiment does not limit.
The utility model utilizes the telephone line network under the mine, realizes the conversion and the transmission of coal machine signal; Simultaneously, because with the high frequency analog signals of coal machine conversion of signals for suitable telephone wire transmission, and the voice transfer signal is a low-frequency analog signal, therefore, after this coal machine conversion of signals is high frequency analog signals, with voice transfer according to different being frequency multiplexed on the telephone wire of down-hole, promptly carry out the new model transmission by the down-hole telephone wire according to different frequency ranges, that is to say, when mine flame-proof and intrinsic safety type signal converter is worked, when utilizing telephone wire to pass the coal conveyor signal, the telephone set of down-hole can normally carry out voice communication.
The utility model need not be laid optical cable or cable line separately, utilize in the colliery ubiquitous telephone network to carry out the signal transmission, and do not influence the use of down-hole phone, reduced the implementation cost in colliery, safe and reliable, meet the requirement of national coal peace, has the coefficient of safety height, reliable and stable, there are not advantages such as artificial operation, multiple coal machine equipment such as be applicable to pick, adopt, protect.
Also see also Fig. 3, the structural representation of a kind of mine flame-proof and intrinsic safety type signal converting system that provides for the utility model, described system comprises: mine flame-proof and intrinsic safety type signal converter 31, coal machine 32 and down-hole telephone set 33, mine flame-proof and intrinsic safety type signal converter 31 is connected with down-hole telephone set 33 with coal machine 32 respectively by cable, wherein
Described coal machine 32 is used for sending up coal machine signal to mine flame-proof and intrinsic safety type signal converter 31, or receives the descending coal machine signal that mine flame-proof and intrinsic safety type signal converter 31 sends; Wherein, the above line control unit local area network (LAN) CAN of described up coal machine signal signal is an example; Described descending coal machine signal is an example with descending CAN signal, but is not limited to this.
Described mine flame-proof and intrinsic safety type signal converter 31, being used for receiving the up coal machine conversion of signals that coal machine 32 sends is ethernet signal, and described ethernet signal is modulated into is fit to transmit by telephone wire according to the frequency division multiplexing mode after the defeated up high frequency analog signals of phone line; And/or the descending high frequency analog signals that will receive by the transmission of described telephone wire is demodulated to the downlink Ethernet signal, sends feeder 32 after described ethernet signal is converted to descending coal machine signal.
In this embodiment, described mine flame-proof and intrinsic safety type signal converter 31 as above-mentioned as 1 or shown in Figure 2, promptly can comprise: protocol converter 311, modulator-demodulator 312 and separator 313, modulator-demodulator is connected with separator with protocol converter respectively by cable, and separator also is connected with telephone wire; Can also comprise phone xegregating unit 314, function that it is concrete and effect see for details above-mentioned, do not repeat them here.
Optionally, when described mine flame-proof and intrinsic safety type signal converter need pass coal conveyor signal and voice signal simultaneously, described mine flame-proof and intrinsic safety type signal converter, the ascending voice signal that also is used for receiving 33 transmissions of described down-hole telephone set carries out isolation processing, and the ascending voice signal after the isolation processing and described up high frequency analog signals are carried out low-and high-frequency handle, obtain up composite signal, and described up composite signal is transmitted by telephone wire according to the frequency division multiplexing mode; And/or, become descending high frequency analog signals and downlink voice signal with receiving by the descending coal machine of described telephone wire transmission and the downlink composite Signal Separation of voice, and described descending high frequency analog signals is demodulated to the downlink Ethernet signal, send feeder after described ethernet signal is converted to descending coal machine signal, described downlink voice signal is carried out sending to down-hole telephone set 33 after the isolation processing.
Optionally, if it is aboveground distant with the distance down-hole, separator and with the telephone wire of corresponding online uphole equipment between can increase one or more repeaters, wherein, described repeater, be connected by telephone wire with separator, be used for the descending coal machine signal in the up coal machine signal of the up high frequency analog signals on the described telephone wire, up composite signal, descending coal machine signal or the downlink composite signal is amplified, realize long-distance transmissions.
Wherein, described repeater can be integrated in the repeater explosion-proof tank, also can independently dispose, and present embodiment does not limit.
The utility model need not be laid optical cable or cable line separately, utilizes fully that ubiquitous telephone network carries out the transmission and the voice communication of coal machine signal in the colliery, the expense that effectively reduces cost, and safe and reliable.
Also see also Fig. 4, the application example structural representation of the mine flame-proof and intrinsic safety type signal converting system that provides for the utility model, in this embodiment, comprise: the mine flame-proof and intrinsic safety type signal converter explosion-proof tank (following abbreviation signal converter explosion-proof tank) 41 that is installed in down-hole telephone set 40 next doors, be installed in mine flame-proof and intrinsic safety type signal converter (following abbreviation signal converter) 42 wherein, wherein, described signal converter 42 comprises: protocol converter 421, modulator-demodulator 422, separator 423 and phone xegregating unit 424, the three is linked in sequence by cable.Also comprise: coal machine 43, the stube cable by the down-hole telephone wire are introduced by cable entry in the casing of inlet signal transducer explosion-proof tank 41, are connected with protocol converter 421 in this casing; And phone xegregating unit 424 is connected with separator 423 with down-hole telephone set 40 respectively.
Wherein, in the signal converter explosion-proof tank 41, the lead-in cable of coal machine 43 is connected on the protocol converter 421, and protocol converter 421 links to each other with modulator-demodulator 422, and modulator-demodulator 422 is connected on the signal port of separator 423; The lead-in cable of down-hole telephone set 40 is connected on the phone xegregating unit 424, and phone xegregating unit 424 is connected on the phone port of separator 423; The lead-in cable of telephone wire is connected on the cable port of separator 423.The words line no longer directly connects the down-hole telephone set.In this embodiment, down-hole telephone set 40 no longer directly connects the down-hole telephone wire; But be connected with telephone wire by mine flame-proof and intrinsic safety type signal converter.
Further, if the distance of aboveground down-hole is distant, then need be at separator 423 repeater 44 of middle increase with the aboveground telephone wire that is connected, perhaps several repeaters, be used to amplify coal machine signal by the telephone wire transmission, so that coal machine signal can clearly be transferred to corresponding uphole equipment 46, such as the digital circuit couple in multiplexer etc.In this embodiment, repeater 44 can be installed in the repeater explosion-proof tank 45, repeater explosion-proof tank 45 is installed in the centre position of down-hole telephone line usually, office, the family end of telephone wire is introduced in the repeater explosion-proof tank 45 with office, the family end of repeater to be connected respectively.
In this embodiment, for up, the up CAN signal that coal machine 43 will send by cable transfers in the protocol converter 421 of signal converter explosion-proof tank, after converting up ethernet signal to by protocol converter 421, being transferred to modulator-demodulator 422 modulates, modulator-demodulator 422 is modulated into the up high frequency analog signals that is suitable for the telephone wire transmission with up ethernet signal, and should up high frequency analog signals be transferred to separator again; Simultaneously, if the down-hole needs and aboveground the conversation, down-hole phone 40 transfers to the ascending voice signal in the signal converter explosion-proof tank 42 by cable, 424 pairs of described ascending voice signals of phone xegregating unit in the signal converter explosion-proof tank 42 carry out isolation processing, and (reason of its isolation and purpose see for details above-mentioned, do not repeat them here), and the ascending voice signal after will isolating sends to separator 423, separator 423 is used to receive the described ascending voice signal that phone xegregating unit 424 sends, and described ascending voice signal and up high frequency analog signals are carried out low-and high-frequency handle, obtain up composite signal, and described up composite signal transmitted by telephone wire according to the frequency division multiplexing mode, promptly be transferred to aboveground corresponding equipment by telephone wire; That is to say, with up analog signal with the ascending voice signal by low-and high-frequency multiplexing be transferred to by telephone wire aboveground, thereby realize utilizing the existing telephone network to realize the conversion and the transmission of up coal machine signal, its conversion and transmission do not influence the transmission of ascending voice signal.
For descending, described separator 423 receives by telephone wire and transmits descending coal machine, the voice composite signal, that is to say, aboveground corresponding equipment is the descending coal machine of separator 423 transmission in the signal converter explosion-proof tank of down-hole by cable and telephone wire, the voice composite signal, separator 423 is with described descending coal machine, the voice composite signal is separated into descending high frequency analog signals and downlink voice signal (being descending low frequency voice signal), and descending analog signal is sent to modulator-demodulator 422 demodulation, and the downlink Ethernet signal after the demodulation transferred to protocol converter 421, protocol converter 421 becomes descending CAN bus signals with the downlink Ethernet conversion of signals, passes feeder 43 back; And separator 423 is sent to the downlink voice signal after phone xegregating unit 424 carries out isolation processing, sends to down-hole telephone set 40; Thereby utilize existing telephone network to realize the reception of descending coal machine signal, voice signal.
Further, no matter be upward signal, still the transmission of downstream signal, coal machine signal, voice signal and/or the composite signal of the two that can also transmit by the repeater in the repeater explosion-proof tank, repeater only amplifies wherein coal machine signal (such as high frequency analog signals etc.), voice signal is not processed, thereby realize coal machine signal long-distance transmissions.
Also see also Fig. 5, the assembling schematic diagram of a kind of mine flame-proof and intrinsic safety type signal converting system that provides for the utility model, as shown in Figure 5, external cable is incorporated in the cavity of mine flame-proof and intrinsic safety type signal conversion explosion-proof tank (being called for short the signal converter explosion-proof tank) by explosion-proof wiring post 2.In the signal converter explosion-proof tank, separator 7, residual current circuit breaker 8, Switching Power Supply 9, transformer 10, fuse base 11, fuse core 12 are assemblied in respectively on the mainboard of the cabinet door of signal converter explosion-proof tank; Protocol converter 4, modulator-demodulator 5 are assemblied in respectively on the casing left side wall panel of signal converter explosion-proof tank.In the repeater explosion-proof tank, repeater 3, residual current circuit breaker 8, Switching Power Supply 9, transformer 10, fuse base 11, fuse core 12 are assemblied in respectively on the mainboard of the cabinet door of signal converter explosion-proof tank; Transformer 6 directly places on the box bottom of signal converter explosion-proof tank.
Also see also Fig. 6, the electrical schematic diagram of a kind of mine flame-proof and intrinsic safety type signal converting system that provides for the utility model, as shown in Figure 6, its electrical principle is: external cable is incorporated into the explosion-proof tank cavity by the explosion-proof wiring post.In first explosion-proof tank, after the AC1140V power line is introduced, receive on the transformer 10 behind connection fuse base 11, the fuse core 12, after transformer becomes AC220V with its transformation, give Switching Power Supply 9 power supplies.Switching Power Supply 9 is told DC9V, DC24V two-way voltage, and wherein DC9V supplies with modulator-demodulator 5, and DC24V supplies with protocol converter 4, phone xegregating unit 13.For up, after the dynamo-electric cable of coal is introduced, receive on the CAN-H, CAN-L mouth of protocol converter 4, be about to up coal machine signal and send to protocol converter 4; Protocol converter 4 becomes up ethernet signal with up coal machine conversion of signals, be connected with modulator-demodulator 5 by Ethernet interface again, after modulator-demodulator 5 is modulated into up high frequency analog signals with up ethernet signal, be connected to the MODEM mouth of separator 7 by copper twisted pair cable, up high frequency analog signals is sent to separator 7.Down-hole telephone set cable is connected on the phone xegregating unit 13, and 13 pairs of ascending voice signals of phone xegregating unit carry out isolation processing, are connected in the PHONE mouth of separator 7.7 pairs of described ascending voice signals of separator and up high frequency analog signals are carried out low-and high-frequency and are handled, obtain up composite signal, and with described up composite signal according to the frequency division multiplexing mode, give aboveground corresponding equipment by the telephone wire cable transmission that its LINE mouth connects.For descending, its circuit theory and up just the same realizes the above existing statement of situation, does not repeat them here.
In the repeater explosion-proof tank, external cable is incorporated in the quick-fried anti-case cavity of repeater by explosion-proof wiring post 2.After power line is introduced, receive on the transformer 10 behind connection fuse base 11, the fuse core 12, give Switching Power Supply 9 power supplies after the transformer transformation.Switching Power Supply 9 is told DC48V and is given transformer 6 power supplies.Transformer 6 gives repeater 3 power supplies.After the telephone wire cable was introduced, its local side was connected on the local side line of repeater 3, and the family end is connected on the family end line of repeater 3.Its uplink and downlink high frequency analog signals of 3 pairs of processes of repeater is amplified.
The utility model provides a kind of mine flame-proof and intrinsic safety type signal converter and system, utilizes the existing telephone network in down-hole can realize the conversion and the transmission of coal machine signal, and does not influence the transmission of original call voice.Its system, constitute by mine flame-proof and intrinsic safety type signal converter, repeater and two explosion-proof tank, mine flame-proof and intrinsic safety type signal converter is installed in the telephone set next door of down-hole near the coal machine, is connected with coal machine, down-hole telephone set, down-hole telephone wire respectively; Repeater is installed in the centre of down-hole telephone line.After the energising,, gather the real time data of the coal machine that articulates, and carry out protocol conversion and transmission automatically by matched software program.The utility model need not be laid optical cable or cable line separately, utilizes in the colliery ubiquitous telephone network to carry out the signal transmission and communicates by letter, and has reduced the implementation cost in colliery, and is safe and reliable.The utility model meets the requirement of national coal peace, has the coefficient of safety height, and is reliable and stable, do not have advantages such as artificial operation, multiple coal machine equipment such as be applicable to pick, adopt, protect.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (10)
1. a mine flame-proof and intrinsic safety type signal converter is positioned at by the telephone set machine of down-hole, it is characterized in that, comprise: protocol converter, modulator-demodulator and separator, modulator-demodulator is connected with separator with protocol converter respectively by cable, separator also is connected with telephone wire, wherein
Described protocol converter, the up coal machine conversion of signals that the coal machine that is used for receiving sends becomes up ethernet signal, and described up ethernet signal is sent to modulator-demodulator;
Described modulator-demodulator, the described up ethernet signal that is used for receiving are modulated into and are fit to send to separator after the defeated up high frequency analog signals of phone line;
Described separator is used for the described up high frequency analog signals that receives is transmitted by telephone wire according to the frequency division multiplexing mode;
And/or
Described separator, the descending high frequency analog signals that is used for receiving by described telephone wire transmission is sent to modulator-demodulator;
Described modulator-demodulator sends to protocol converter after being used for the described descending high frequency analog signals that described separator sends is demodulated to the downlink Ethernet signal;
Described protocol converter transmits feeder after the downlink Ethernet conversion of signals that the described modulator-demodulator that is used for receiving sends becomes descending coal machine signal.
2. signal converter according to claim 1 is characterized in that, also comprises: the phone xegregating unit, wherein,
Described phone xegregating unit is used for the ascending voice signal that receives the telephone set transmission of connected down-hole is carried out isolation processing, and the ascending voice signal after the isolation processing is sent to described separator;
Described separator, also be used to receive the ascending voice signal that described phone xegregating unit sends, and described ascending voice signal and up high frequency analog signals are carried out low-and high-frequency handle, obtain up composite signal, and described up composite signal is transmitted by telephone wire according to the frequency division multiplexing mode;
And/or
Described separator, also be used for becoming descending high frequency analog signals and downlink voice signal with receiving by the descending coal machine of described telephone wire transmission and the downlink composite Signal Separation of voice, and described descending high frequency analog signals sent to modulator-demodulator, described downlink voice signal is sent to the phone xegregating unit;
Described phone xegregating unit is used for the downlink voice signal that receives described separator transmission is carried out sending to described down-hole telephone set after the isolation processing.
3. signal converter according to claim 1 is characterized in that, described up coal machine signal is: upload control device local area network (LAN) CAN signal; Described descending coal machine signal is descending CAN signal.
4. signal converter according to claim 1 and 2 is characterized in that, described separator comprises at least: signaling interface, telephony interface and cable interface, wherein,
Described separator receives the up high frequency analog signals that described modulator-demodulator sends by signaling interface;
Described separator receives the ascending voice signal that described phone xegregating unit sends by telephony interface;
Described separator transmits by telephone wire according to the frequency division multiplexing mode by the described up high frequency analog signals that cable interface will receive;
And/or
Described separator sends the downlink Ethernet signal by signaling interface to described modulator-demodulator;
Described separator sends the downlink voice signal by telephony interface to described phone xegregating unit;
Described separator receives the downlink composite signal that transmits by described telephone wire by cable interface.
5. according to each described signal converter of claim 1 to 3, it is characterized in that described mine flame-proof and intrinsic safety type signal converter is integrated in the signal converter explosion-proof tank, or independent the deployment.
6. mine flame-proof and intrinsic safety type signal converting system, it is characterized in that, comprising: mine flame-proof and intrinsic safety type signal converter, coal machine and down-hole telephone set, mine flame-proof and intrinsic safety type signal converter is connected with the down-hole telephone set with the coal machine respectively by cable, wherein
Described coal machine is used for sending up coal machine signal to mine flame-proof and intrinsic safety type signal converter;
Described mine flame-proof and intrinsic safety type signal converter, being used for receiving the up coal machine conversion of signals that the coal machine sends is up ethernet signal, and will described up ethernet signal be modulated into and be fit to transmit by telephone wire according to the frequency division multiplexing mode after the up high frequency analog signals that phone line fails;
And/or
Described mine flame-proof and intrinsic safety type signal converter, be used for will receive descending high frequency analog signals by described telephone wire transmission be demodulated to the downlink Ethernet signal, send feeder after described ethernet signal is converted to descending coal machine signal;
Described coal machine is used to receive the descending coal machine signal that mine flame-proof and intrinsic safety type signal converter sends.
7. system according to claim 6, it is characterized in that, described mine flame-proof and intrinsic safety type signal converter, the ascending voice signal that also is used for receiving the telephone set transmission of described down-hole carries out isolation processing, and the ascending voice signal after the isolation processing and described up high frequency analog signals are carried out low-and high-frequency handle, obtain up composite signal, and described up composite signal is transmitted by telephone wire according to the frequency division multiplexing mode; And/or, become descending high frequency analog signals and downlink voice signal with receiving by the descending coal machine of described telephone wire transmission and the downlink composite Signal Separation of voice, and described descending high frequency analog signals is demodulated to the downlink Ethernet signal, send feeder after described ethernet signal is converted to descending coal machine signal, described downlink voice signal is carried out sending to the down-hole telephone set after the isolation processing.
8. according to claim 6 or 7 described systems, it is characterized in that, also comprise:
Repeater is connected by telephone wire with separator, is used for the up coal machine signal of up high frequency analog signals on the described telephone wire or up composite signal is amplified, and realizes long-distance transmissions; And/or be used for the descending coal machine signal of descending coal machine signal on the described telephone wire or downlink composite signal is amplified, realize long-distance transmissions.
9. system according to claim 8 is characterized in that described repeater is integrated in the repeater explosion-proof tank, or independent the deployment.
10. according to claim 6 or 7 described systems, it is characterized in that described mine flame-proof and intrinsic safety type signal converter is as claim 1 to 5 as described in each.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201643354U CN201813449U (en) | 2010-04-19 | 2010-04-19 | Mine flameproof and intrinsically safe signal converter and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201643354U CN201813449U (en) | 2010-04-19 | 2010-04-19 | Mine flameproof and intrinsically safe signal converter and system |
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| CN201813449U true CN201813449U (en) | 2011-04-27 |
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| CN2010201643354U Expired - Fee Related CN201813449U (en) | 2010-04-19 | 2010-04-19 | Mine flameproof and intrinsically safe signal converter and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105955401A (en) * | 2016-04-22 | 2016-09-21 | 陕西太合科技有限公司 | Mining flame-proof and intrinsic safe type computer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105955401A (en) * | 2016-04-22 | 2016-09-21 | 陕西太合科技有限公司 | Mining flame-proof and intrinsic safe type computer |
| CN105955401B (en) * | 2016-04-22 | 2022-05-06 | 陕西太合智能钻探有限公司 | Mining flame-proof and intrinsic safety type computer |
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