CN201150075Y - Mining multimedia communication access gateway - Google Patents
Mining multimedia communication access gateway Download PDFInfo
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- CN201150075Y CN201150075Y CNU2007201732905U CN200720173290U CN201150075Y CN 201150075 Y CN201150075 Y CN 201150075Y CN U2007201732905 U CNU2007201732905 U CN U2007201732905U CN 200720173290 U CN200720173290 U CN 200720173290U CN 201150075 Y CN201150075 Y CN 201150075Y
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Abstract
The utility model discloses a mine multimedia communication access gateway. The gateway is composed of a redundant Ethernet module, a wireless access point module, an antenna, a power supply and an outer casing and meets the security technology requirements of electrical equipments used in the underground explosive gas atmosphere, and the data transmissions and the network redundant interconnection between the gateways and from the gateway to the ground are realized through the internal redundant Ethernet module, simultaneously, local Ethernet ports are provided, the antenna is connected with a radio-frequency output port of a wireless Ethernet access point module, and the wireless Ethernet access point module is connected with the redundant Ethernet module. The interconnection of the underground industrial Ethernet is realized by the local Ethernet ports of the gateway; the interconnection of the underground cameras is realized by the Ethernet ports or the cable interfaces; the communication with the outer communication terminal is realized through the access point module; the location with the outer radio-frequency electronic label is realized through an radio-frequency electronic label card reader module. The gateway realizes the functions of various services such as high bandwidth, high disaster recovery, carrying voice, positioning, data, and video frequency.
Description
Affiliated technical field
The utility model relates to a kind of mining communication equipment, specifically, is a kind of multimedia communication access gateway for mining, is specially adapted to down-hole multi-service broadband connections and emergency communication.
Background technology
Coal is the important energy source of China, accounts for 70% of primary energy.China's coal-mine is pit mining more than 95%, the sound development that the coal occurrence condition is poor, mining depth is dark, gas, coal dust, floods, fire, bump, underground heat etc. are perplexing coal industry, coal industry is the high risk industries in China industrial and mining enterprises always.Analyze reason, problems such as existing managerial confusion, low, the safe insufficient investment of peopleware, scientific research weakness have under the coal mine problems such as communication equipment falls behind again.After particularly having an accident under the coal mine, the down-hole number is not quite clear, the trapped personnel position is unclear, trapped personnel is not know whether one is dead or alive is the eager problem that solves of emergency management and rescue after the calamity.Therefore, be necessary research combat a natural disaster the change ability strong, have multi-functional Underground Wireless Communication in Coal Mine such as a personnel positions monitoring system.This improves the rescue and relief work equipment for ensureing Safety of Coal Mine Production, reduces or the casualties of avoiding coal mining accident to cause has important social benefit and economic benefit.
Be a special operational environment under the coal mine, therefore, mine mobile communication system is different from general ground mobile communication system, has following characteristics:
(1) intrinsic safety type electric equipment.Imflammable gas and coal dusts such as methane are arranged under the coal mine, so the good inbeing safe explosion prevention measure of mobile communication equipment requirement employing security performance, the mobile communication equipment in colliery must have explosion-proof licence.
(2) sending allowance is big.Mine can reach tens in length and breadth to kilometer up to a hundred, and the space is narrow and small under the coal mine, the tunnel tilts, turn round and branch, tunnel rough surface, and baffle element such as locomotive is arranged, and sending allowance is big.So select suitable technique scheme, frequency and structure reasonable in design for use, could guarantee that mine mobile communication system covers full mine.
(3) equipment volume is little.The space is narrow and small under the coal mine, and mine full-size is also with regard to about 4m, and has also set up power cable, illuminating line in this narrow space, has laid water pipe, rail.Therefore, the volume of mobile communication equipment can not be very big, and the volume of gateway can not be too big, and the antenna length of mobile phone and gateway can not be oversize.
(4) antijamming capability is strong.The space, down-hole is narrow, electromechanical equipment is concentrated relatively, power is big, so electromagnetic interference is serious.So equipment should have stronger antijamming capability.In mine, natural radiation is little, and the little and artificial emission of electrostatic interference wave interference is little, but the interference of 50Hz and its harmonic wave and interference that the electric locomotive spark is caused are big.So mine mobile communication system should be considered these interference sources on operating frequency is selected, should select high frequency or very high frequency(VHF) as the system works frequency as far as possible.Gateway must be considered jamproof problem in wire transmission and power supply design simultaneously.
(5) barrier propterty is good.Performances such as dustproof, waterproof, protection against the tide, mildew-resistant, anti-mechanical shock should be arranged.Particularly to consider its protective capacities especially when the keyboard of mobile phone, Mike and loudspeaker design.
(6) the fault-resistant ability is strong.The colliery subsurface environment is abominable, and corollary failures such as roof caving, locomotive derailing are inevitable, and the incident of artificial destruction simultaneously also happens occasionally.Therefore mine mobile communication system should have stronger fault-resistant ability, and when in the system during some device fails, all the other non-faulty equipments still can work on.In addition, also should there be quick repair ability in system.The travelling carriage of mine mobile communication system should have the ability of talkaround.
(7) channel capacity is big.Be a mobile operational environment under the coal mine, existing wired dispatching telephone is limited to.Along with the reduction of perfect, the cost of the raising of mobile communication system reliability, communication quality, function, it will bear the task of whole production schedulings and disaster communication, so the system of need have bigger channel capacity.Mine mobile communication system not only should have the function of conversation and scheduling, and the ability of image, speech and sensing data transmission also should be arranged.When Confirming of Capacity of Channel, to consider mine expansion in the future.
Because the particularity under the coal mine has restricted the development of mine mobile communication system.Up to now, go back the comparatively perfect mine mobile communication system of neither one in down-hole application.
Up to now, the China's coal-mine down-hole is mainly in the wire communication mode.The mine wireless communication mode mainly contains leaky feeder communication, inductive communication, through the earth communication, PHS (Personal Handyphone System) communication, 3G (big well-informed) communication system etc. both at home and abroad.
Wherein ground through communication system exists that equipment volume is big, Heavy Weight, channel capacity is little, ground installation power big, ground-plane antenna difficult arrangement, one-way communication problems such as (ground are to the down-hole), therefore should not be used as the Underground Wireless Communication in Coal Mine system.
Leakage Communication System exists narrow bandwidth, combats a natural disaster to become ability, a large amount of series connection relayings causes poor reliability, do not possess problem such as redundancy feature, therefore should not make the Underground Wireless Communication in Coal Mine system.
PHS (Personal Handyphone System) communication system and 3G (big well-informed) communication system exists base station controller and base station non-intrinsically safe explosion-proofing safe, system do not possess redundancy feature, combat a natural disaster to become ability, narrow bandwidth, base station, down-hole to ground maximum communication distance do not satisfy underground communica tion greater than 10 kilometers problems such as requirement.
And, at present mine leaky feeder communication, inductive communication, through the earth communication and PHS (Personal Handyphone System) communication system all do not have functions such as personnel's position monitoring, video monitoring, Industrial Ethernet be interconnected, when not accomplishing to converse, the administrative staff on ground can know personnel in the pit's position, can see concrete down-hole scene again.And present down-hole personnel position monitoring system does not have functions such as voice radio communication, video monitoring, Industrial Ethernet be interconnected yet, the administrative staff on ground can only know the position at personnel in the pit place, but can't be directly and its conversation, also can't see concrete down-hole scene.The superfluous calamity function of existing system is all very poor, in case the down-hole disaster takes place, the as easy as rolling off a log interruption of system does not possess the requirement of emergency communication.
Summary of the invention (specification)
But problem to be solved in the utility model is the multiple services multimedia communication access gateway for mining that proposes a kind of high bandwidth, high superfluous calamity performance, the good voice-over of communication quality, data, video, satisfies production, management and the emergency management and rescue demand of present underground mobile communication, personnel positioning, video monitoring, Industrial Ethernet and the industrial bus network interconnection on a platform.In the existing technology, the every professional self-organizing system of underground mobile communication, personnel positioning, video monitoring, Industrial Ethernet and industrial bus network, the deficiency that has function singleness, repeats to construct, safeguards separately more can't obtain the facility that function combinations is brought; And existing each operation system does not all possess superfluous calamity function, and network is tree type or Star Network, a line of some fault effectses or a panel region; Existing down-hole video monitoring system is analogue system, all need set up an optical fiber to aboveground from each video camera, and cost height, quantities are big, have limited the increase of control point; Existing underground mobile communication system exists that narrow bandwidth, cost height, base station controller volume are big, controller is to the problem of base station transmits distance less than 10KM.Existing underground communica tion system mostly is narrowband systems, and transmission rate is 2Mbps, minority be the down-hole Ethernet system of 100Mbps, this bandwidth can't be supported such as the extensive use in the down-hole of the multimedia services such as audio frequency and video of video monitoring class.
For solving the problems of the technologies described above, the utility model is realized by the following technical solutions:
Gateway is made up of Redundant Ethernet module, IEEE802.11 radio access point module, antenna, power supply, shell, it is characterized in that described gateway satisfies well shooting gaseous environment electrical installation safety specifications, described gateway is realized between the gateway by inner Redundant Ethernet module, gateway is interconnected to the transfer of data and the network redundancy on ground, local ethernet port is provided simultaneously, antenna connects wireless ethernet access point module radio-frequency (RF) output end mouth, and wireless ethernet access point module connects the Redundant Ethernet module.
Described Redundant Ethernet module is the superfluous Gigabit Ethernet modules of many rings.
Described gateway comprises the radio-frequency (RF) identification card reader module, the serial server module, the radio-frequency (RF) identification card reader antenna, described card reader module is connected to described Redundant Ethernet module by the serial server module, and the radio-frequency (RF) identification card reader antenna is connected to described card reader module.
Described gateway comprises the video server module, and the input end of analog signal mouth of video server connects the down-hole analog video camera of described gateway outside, and the network port of video server connects described Redundant Ethernet module.
Described gateway comprises many superfluous Gigabit Ethernet modules of ring and video server module simultaneously, and the input end of analog signal mouth of video server connects the down-hole analog video camera of described gateway outside, and the network port of video server connects described Redundant Ethernet module.
Described gateway comprises many superfluous Gigabit Ethernet modules of ring and radio-frequency (RF) identification card reader module simultaneously, the serial server module, the radio-frequency (RF) identification card reader antenna, described card reader module is connected to described Redundant Ethernet module by the serial server module, and the radio-frequency (RF) identification card reader antenna is connected to the radio-frequency (RF) output end mouth of described card reader module.
Described gateway comprises many superfluous Gigabit Ethernet modules of ring and video server module simultaneously, the input end of analog signal mouth of video server connects the down-hole analog video camera of described gateway outside, the network port of video server connects described Redundant Ethernet module, also comprise the radio-frequency (RF) identification card reader module, the serial server module, the radio-frequency (RF) identification card reader antenna, described card reader module is connected to described Redundant Ethernet module by the serial server module, and the radio-frequency (RF) identification card reader antenna is connected to described card reader module.
Include the IP-PBX module in the radio access point module of described gateway.
Described gateway, its serial server module has two RS485/422/232 output ports.A port connects described radio-frequency (RF) identification card reader module, and another port can be for the industrial bus equipment that connects described gateway outside.
The centre frequency that the radio-frequency (RF) identification card reader module of described gateway uses is 2.45GHz.
Described gateway is equipped with uninterrupted back-up source module and battery, and system can operate as normal in the power failure or the environment that temporarily cuts off the power supply.
Described gateway is supported measured simple network management snmp protocol.
Compared with prior art, advantage of the present utility model and good effect are:
Have the Gigabit Ethernet modules of many ring redundancy features by employing, made up the network platform of high broadband, down-hole, highly redundant, and realize that on this platform the multi-service that wireless ethernet, Industrial Ethernet, video monitoring, industrial bus use is integrated.The bandwidth of gigabit makes the down-hole become possibility to the high-quality of the higher business such as video of bandwidth requirement, big volume transport, the structure of redundant looped network makes the quantities and the material consumption of down-hole wiring reduce greatly, makes the fail safe of network and superfluous calamity performance significantly improve simultaneously.
Implemented based on the wireless mobile communications of wireless ethernet technology by adopting the wireless ethernet module that the wireless ethernet technology is applied to the down-hole, making, realized mobile voice, mobile video and the mobile data communication traffic of down-hole.
By adopting the video server module, make the raising of increase, monitor video quality of construction, control point of down-hole video monitoring system become to be more prone to and cost more greatly reduces.
By adopting the radio electronic label card reader module, make the coverage of down-hole fixer network and positioning accuracy improve greatly, the construction of increase, the fixer network of position monitor point is become be more prone to.
By adopting the serial server module, for the equipment of use serial communications such as down-hole industrial bus is realized networking and transfer function.
Multiple services combination brings extra increased functionality, combining of navigation system and mobile communication for example, and video monitoring combines with mobile communication.Multimedia, the multiple services integrated function that strengthens multimedia communication access gateway for mining have greatly solved the difficult problem that a kind of business in present down-hole is built a waste of throwing the net and difference O﹠M, have reduced cost, have improved performance, are with a wide range of applications.
But gateway has been realized the multiple services function of high bandwidth, high superfluous calamity performance, the good voice-over of communication quality, location, data, video, can satisfy production, management and the emergency management and rescue demand of present underground mobile communication, personnel positioning, video monitoring, Industrial Ethernet and the industrial bus network interconnection simultaneously.
Figure of description
Fig. 1 is a multimedia communication access gateway for mining basic functional principle block diagram
Fig. 2 is a gigabit ethernet switching module basic functional principle block diagram
Fig. 3 is a radio access point module basic functional principle block diagram
Fig. 4 is a video server module basic functional principle block diagram
Fig. 5 is a radio electronic label card reader module basic functional principle block diagram
Embodiment
The following example will further specify the utility model, and embodiment should not be regarded as limiting scope of the present utility model.Below in conjunction with the drawings and specific embodiments the utility model is done detailed explanation:
Fig. 1 is a multimedia communication access gateway for mining basic functional principle block diagram
Redundant Ethernet module a in the multimedia communication access gateway for mining is undertaken between gateway and the gateway by its redundancy port o1, o2, and gateway is interconnected to ground, forms redundant network.Redundant Ethernet module a connects radio access point module b by its electricity mouthful e1, and radio access point module b connects transmitting antenna t1, provides the wireless ethernet network based on the IEEE802.11 standard to cover.Redundant Ethernet module a connects video server module e by its electricity mouthful e2, and the input end of analog signal mouth c1 of video server module e connects the video camera of down-hole analog signal output.Redundant Ethernet module a connects serial server module d by its electricity mouthful e7, the RS485/422/232 serial ports d2 of serial server module d for interconnected down-hole control, sensing equipment uses, another serial ports d1 connects radio-frequency (RF) identification card reader module c, radio-frequency (RF) identification card reader module c connects transmitting antenna t2, and the covering of wireless location network is provided.The IP-PBX functional module is built in the IEEE802.11 radio access point module, and power module p finishes the conversion of AC-to DC, and for gateway work provides power supply, its reserce cell that comprises can provide uninterrupted power supply for gateway under the outage environment.Support the Simple Network Management Protocol SNMP of standard in the gateway.
Different choice to each module constitutes different embodiment:
(1). the selection of Redundant Ethernet module:
The Redundant Ethernet module can select 100,000,000 or Gigabit Ethernet module, and redundancy port quantity can be selected 2 port redundancies, 3 ports are redundant or have the multiport redundancy feature, can redundant network topology can select monocycle, dicyclo or many rings.
(2) .IEEE802.11 radio access point module:
The module that the IEEE802.11 radio access point module can be selected to support 802.11 protocol suites or support the WAPI agreement simultaneously can select to support to include the module of IP-PBX function.
(3). the frequency that the radio-frequency (RF) identification card reader module can be selected is 915MHz or 2.45GHz.
(4). the serial server module can be selected the module of single port, 2 ports or multiport.
(5). the video server module can be selected the module of single port, 4 ports or multiport.
The Redundant Ethernet module is the basic interconnected platform of gateway, and each functional module: wireless access, radio-frequency (RF) identification, video server and serial server are all interconnected with it by Ethernet, to each functional module different constitute different embodiment:
(1). Redundant Ethernet module+IEEE802.11 radio access point module, the function of realization Redundant Ethernet and wireless access.
(2). Redundant Ethernet module+IEEE802.11 radio access point module+radio-frequency (RF) identification card reader module, realize the function of Redundant Ethernet, wireless access and radio-frequency (RF) identification simultaneously.
(3). Redundant Ethernet module+IEEE802.11 radio access point module+video server module, realize the function that Redundant Ethernet, wireless access and video monitoring insert simultaneously.
(4). gigabit is encircled Redundant Ethernet module+IEEE802.11 radio access point module more, realizes that simultaneously gigabit encircles the function of Redundant Ethernet and wireless access more.
(5). gigabit is encircled Redundant Ethernet module+IEEE802.11 radio access point module+radio-frequency (RF) identification card reader module more, realizes that simultaneously gigabit encircles the function of Redundant Ethernet, wireless access and radio-frequency (RF) identification more.
(6). gigabit is encircled Redundant Ethernet module+IEEE802.11 radio access point module+video server module more, realizes that simultaneously gigabit encircles the function that Redundant Ethernet, wireless access and video monitoring insert more.
(7). gigabit is encircled Redundant Ethernet module+IEEE802.11 radio access point module+radio-frequency (RF) identification card reader module+video server module more, realizes that simultaneously gigabit encircles the function that Redundant Ethernet, wireless access, radio-frequency (RF) identification and video monitoring insert more.
Fig. 2 is a gigabit ethernet switching module basic functional principle block diagram, circuit mainly is made up of switched circuit and control circuit two parts, switched circuit is responsible for the transmission and the reception of Ethernet data, and mainly the network interface by two layers of exchange chip of Ethernet, Ethernet interface transformer, tape light is formed by connecting.
By being that core devices constitutes complete essential safety coal mine lower network switch based on the built-in network microprocessor of high performance network exchange of ARM-9E and controlled function and 8 electricity mouth+3 light mouth network exchange Management Controllers and complicated programmable logic device CPLD.
ARM-9E is the built-in network microprocessor of high performance-cost ratio; Be the core of control circuit, move embedded OS and Control Software thereon, make things convenient for the management of user ring exchanger.Two layers of exchange chip of 8 electricity mouth+3 light mouth Ethernets are the cores of switched circuit, realize two layers of exchange of Ethernet, are responsible for the forwarding of packet between each switching port.CPLD is a programmable logic device; The FLASH chip is preserved embedded real-time operating system, application software and system's running log etc.SDRAM is a random asccess memory;
Fig. 3 is a wireless ethernet module basic functional principle block diagram, and circuit mainly is made up of base band and radio circuit two parts, and baseband chip is mainly realized the modulation of host interface, the configuration of MAC layer, control and storage, base band PHY and signal.The RF signal receiving and s ending machine chip is mainly finished the transmitting-receiving of frequency conversion, signal.Radio-frequency front-end is mainly finished the amplification filtering function of emission and received RF signal.
Fig. 4 is a video server module basic functional principle block diagram
Connect PAL/NTSC standard video camera by analog video CVBS port input interface, the vision signal of input enters media processing chip Hi350 through video D/A switch module (using Philips SAA7114), and the audio signal of input enters media processing chip Hi 350 through audio coder 320AIC23B.Media processing chip Hi 3510 realizes the H.264 coding of 30fps D1 as video encoder, can select audio frequency full duplex encoding and decoding such as ADPCM/G.726/AMR, supports mobile detection, blocks functions such as alarm, digital watermarking.The video server coding is by the gigabit switch module in the Ethernet IAD.
Fig. 5 is a radio electronic label card reader module basic functional principle block diagram
Protocol converter and embedded processor forming control system, control system has following main task:
(1). communicate with application systems software, and carry out the communication process of the action command control of sending from application systems software and radio electronic label
(2). the encoding and decoding of signal
(3). carry out anti-collision algorithm
(4). the data of transmitting between reading card device and the label are carried out encrypt and decrypt
(5). carry out the authentication between card reader and the label
Radio frequency unit has following main task
(1). modulate transmitting, transfer data to radio electronic label
(2). receive also demodulation from the radiofrequency signal of radio electronic label
(3). two separated signalling channels are arranged in the high frequency interface, be respectively applied for the transceive data passage that commutes radio electronic label.
Claims (12)
1. multimedia communication access gateway for mining, described gateway is made up of Redundant Ethernet module, IEEE802.11 radio access point module, antenna, power supply, shell, it is characterized in that described gateway is by between the inner Redundant Ethernet module realization gateway, gateway is interconnected to the transfer of data and the network redundancy on ground, local ethernet port is provided simultaneously, antenna connects wireless ethernet access point module radio-frequency (RF) output end mouth, and wireless ethernet access point module connects the Redundant Ethernet module.
2. multimedia communication access gateway according to claim 1 is characterized in that described Redundant Ethernet module is the superfluous Gigabit Ethernet module of many rings.
3. multimedia communication access gateway for mining according to claim 1, it is characterized in that it also comprises the radio-frequency (RF) identification card reader module, the serial server module, the radio-frequency (RF) identification card reader antenna, described card reader module is connected to described Redundant Ethernet module by the serial server module, and the radio-frequency (RF) identification card reader antenna is connected to described card reader module.
4. multimedia communication access gateway for mining according to claim 1, it is characterized in that it also comprises the video server module, the input end of analog signal mouth of video server connects the down-hole analog video camera of described gateway outside, and the network port of video server connects described Redundant Ethernet module.
5. multimedia communication access gateway according to claim 2, it is characterized in that it also comprises the video server module, the input end of analog signal mouth of video server connects the down-hole analog video camera of described gateway outside, and the network port of video server connects described Redundant Ethernet module.
6. multimedia communication access gateway according to claim 2, it is characterized in that it also comprises the radio-frequency (RF) identification card reader module, the serial server module, the radio-frequency (RF) identification card reader antenna, described card reader module is connected to described Redundant Ethernet module by the serial server module, and the radio-frequency (RF) identification card reader antenna is connected to the radio-frequency (RF) output end mouth of described card reader module.
7. multimedia communication access gateway according to claim 5, it is characterized in that described it also comprise the radio-frequency (RF) identification card reader module, the serial server module, the radio-frequency (RF) identification card reader antenna, described card reader module is connected to described Redundant Ethernet module by the serial server module, and the radio-frequency (RF) identification card reader antenna is connected to described card reader module.
8. multimedia communication access gateway according to claim 1 is characterized in that including in the described radio access point module IP-PBX module.
9. multimedia communication access gateway according to claim 3 is characterized in that the serial server module has two RS485/422/232 output ports.A port connects described radio-frequency (RF) identification card reader module, and another port can be for the industrial bus equipment that connects described gateway outside.
10. multimedia communication access gateway according to claim 3 is characterized in that the centre frequency that the radio-frequency (RF) identification card reader module uses is 2.45GHz.
11. multimedia communication access gateway for mining according to claim 1 is characterized in that being equipped with uninterrupted back-up source module and battery, system can operate as normal in the power failure or the environment that temporarily cuts off the power supply.
12., it is characterized in that gateway supports measured simple network management snmp protocol according to multimedia communication access gateway for mining according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNU2007201732905U CN201150075Y (en) | 2007-09-21 | 2007-09-21 | Mining multimedia communication access gateway |
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| CNU2007201732905U CN201150075Y (en) | 2007-09-21 | 2007-09-21 | Mining multimedia communication access gateway |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103312361A (en) * | 2013-06-27 | 2013-09-18 | 成都九洲电子信息系统股份有限公司 | Wireless communication device meeting GJB (Chinese military standard) protocol |
| CN105323157A (en) * | 2014-07-31 | 2016-02-10 | 三星电机株式会社 | Electronic shelf label tag and electronic shelf label gateway |
-
2007
- 2007-09-21 CN CNU2007201732905U patent/CN201150075Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103312361A (en) * | 2013-06-27 | 2013-09-18 | 成都九洲电子信息系统股份有限公司 | Wireless communication device meeting GJB (Chinese military standard) protocol |
| CN105323157A (en) * | 2014-07-31 | 2016-02-10 | 三星电机株式会社 | Electronic shelf label tag and electronic shelf label gateway |
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Granted publication date: 20081112 Termination date: 20140921 |
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