CN202381094U - Remote control system for bidirectional mine - Google Patents

Remote control system for bidirectional mine Download PDF

Info

Publication number
CN202381094U
CN202381094U CN2011205133783U CN201120513378U CN202381094U CN 202381094 U CN202381094 U CN 202381094U CN 2011205133783 U CN2011205133783 U CN 2011205133783U CN 201120513378 U CN201120513378 U CN 201120513378U CN 202381094 U CN202381094 U CN 202381094U
Authority
CN
China
Prior art keywords
circuit
remote control
way
mine
receiver
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2011205133783U
Other languages
Chinese (zh)
Inventor
刘赐平
张福建
金丹华
徐劲勇
吕晓
梁杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tiandi Science and Technology Co Ltd
Tiandi Shanghai Mining Equipment Technology Co Ltd
Tiandi Science and Technology Co Ltd Shanghai Branch
Original Assignee
Tiandi Shanghai Mining Equipment Technology Co Ltd
Tiandi Science and Technology Co Ltd Shanghai Branch
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tiandi Shanghai Mining Equipment Technology Co Ltd, Tiandi Science and Technology Co Ltd Shanghai Branch filed Critical Tiandi Shanghai Mining Equipment Technology Co Ltd
Priority to CN2011205133783U priority Critical patent/CN202381094U/en
Application granted granted Critical
Publication of CN202381094U publication Critical patent/CN202381094U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Abstract

The utility model discloses a remote control system for a bidirectional mine. The remote control system comprises a remote control transmitter for the bidirectional mine and a receiver for the bidirectional mine, wherein the remote control transmitter for the bidirectional mine comprises a first core processor, a first power supply, an input unit, a first display unit, a first wireless communication circuit and a first data recording circuit; the receiver for the bidirectional mine comprises a second core processor, a second power supply, a second wireless communication circuit, a second data recording circuit, a CAN (Controller Area Network) interface circuit, an isolating circuit and a CAN external interface circuit; and the second core processor is connected with the second power supply, the second wireless communication circuit, the second data recording circuit and the CAN interface circuit. According to the remote control system for the bidirectional mine, disclosed by the utility model, under the condition that a mechanical operator for the mine is far from a controlled machinery for a certain distance, the remote control operation for the controlled machinery can be realized, the change situation of three groups of state parameters of the concerned controlled machinery can be seen in real time in operation, and the safe operation of a high-gassy mine can be ensured.

Description

Two-way mining remote control system
Technical field
The utility model belongs to the electronic communication technology field, relates to a kind of mining remote control system, relates in particular to the universal two-way mining remote control system in a kind of left and right sides.
Background technology
At present, the radio remote controller of domestic mining machine adopts the one-way transmission mode more, on remote controller, does not show the real-time status parameter and the fault message of controlled device.And the condition of work of mining machine is relatively more abominable, is difficult to follow the real-time working state that machinery is observed machinery, and especially at the work plane that the wall caving phenomenon is arranged, this observation has great danger.For the operating personnel of machinery, the traditional work mode can only be that mechanical relatively certain distance carries out perusal, is unfavorable for that operating personnel correctly judge according to the real-time status of machinery.
Because mining machine belongs to big machinery; Mining face under mine visibility is lower again, therefore generally all selects the method for the right and left control for use, and left remote control is by the operating personnel's operation that stands in mechanical left back certain distance; Right remote control is by the operating personnel's operation that stands in mechanical right rear certain distance; Left and right sides remote control needs simultaneously machinery to be controled, and therefore all selects for use the method for frequency division to realize usually, but so; Left and right sides remote controller can not be general, all brings influence for accident analysis, equipment and spare part etc.
Chinese patent CN200920164367.1 (patent announcement number: CN201581897U) disclose a kind of coal-winning machine remote control that shows with operating mode; Comprise hand-held remote control unit and wireless signal transceiver; Hand-held remote control unit adopts powered battery, comprises microcontroller and coupled radio receiving transmitting module, keyboard and LCD; Wireless signal transceiver comprises microcontroller and coupled radio receiving transmitting module and wire communication module.The defective of this scheme is, its operating mode shows it is that mode through wire transmission turns back on the remote control, and is obviously inconvenient during use, and that the mode of wired remote control down-hole mechanical has is varied, and it is main on work plane, being still with pure wireless remote control.
Chinese patent CN200910014818.8 (patent announcement number: CN101871364A) disclose a kind of thin seam working surface coal mining machine remote control thereof, adopted the automatic segmentation remote control; That is: with the work plane segmentation, segmentation parameter input coal-winning machine control centre receives only coal-winning machine to be set in the telecommand of the radio transmitter of this segmentation.For this reason, in the remote control of forming by transmitter and receiver, coal-winning machine control centre, increase positioner, detect coal machine segmentation of living in position; Through control centre's calculation process, outgoing position segment encoding signal, by automatic switching control circuit newly-increased in the receiver, carrier frequency or the passage or the codec format etc. of receiver are switched in control.Each emitter adopts distinct transmit carrier frequency or coded format etc., and is corresponding with the work plane segmentation that sets, corresponding with the switchable reception of receiver.Its core content is according to the coal-winning machine position, and receiver switches different frequency range, realizes the segmentation remote control by the frequency division method, has saved the work that operating personnel creep on narrow work plane, but the remote-controlled transmitter of complex structure, a plurality of frequency ranges of needs.
The utility model content
The utility model technical problem to be solved is: a kind of two-way mining remote control system is provided; The straighforward operation that realizes under the situation of controlled mechanical certain distance controlled machinery can left; Can see the situation of change of the state parameter of care during operation in real time, guarantee the highly gassy mine safety work.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of two-way mining remote control system, said system comprise two-way mining remote-controlled transmitter, two-way mining receiver;
Said two-way mining remote-controlled transmitter comprises first core processor, first power supply, input block, first display unit, first radio communication circuit, the first data record circuit; Said first core processor connects first power supply, input block, first display unit, first radio communication circuit, the first data record circuit;
Said two-way mining receiver comprises second core processor, second source, second radio communication circuit, the second data record circuit, CAN interface circuit, buffer circuit and CAN external interface circuit; Said second core processor connects second source, second radio communication circuit, the second data record circuit, CAN interface circuit, and said CAN interface circuit, buffer circuit, CAN external interface circuit connect successively; Said two-way mining receiver is connected with the master control system of controlled device.
As a kind of preferred version of the utility model, said two-way mining remote-controlled transmitter also comprises wired telecommunication circuit, is connected with first core processor.
A kind of preferred version as the utility model; Said first core processor is after receiving the signal that input block sends; Utilize total line traffic control that the data of required wireless transmission are sent to first radio communication circuit; First radio communication circuit sends to data on the two-way mining receiver that is contained on the controlled device, realizes wireless distant control function to controlled device, and first radio communication circuit receives the information that said two-way mining receiver is replied simultaneously; And return information is forwarded to first core processor; Return information is after first core processor is handled, and the information that according to circumstances will show is sent to first display unit and shows, thereby realizes the information interaction of operating personnel and controlled device state; When fault message, when showing,, fault message is recorded in the first data record circuit by the control of first core processor.
A kind of preferred version as the utility model; After powering on, said two-way mining receiver promptly works always; Moment monitoring wireless channel, second radio communication circuit receives wireless data, gives second core processor after the demodulation; Second core processor is comprehensively judged; Require regularly to send left and right sides remote state to the CAN interface circuit according to master control, this status data is through sending on the master control CAN bus of controlled device behind buffer circuit and the CAN external interface circuit, and the master control system of controlled device is accomplished corresponding control action according to state again; Meanwhile, second core processor also can regularly read the real-time working state of controlled device from the CAN bus of master control system through CAN interface circuit, buffer circuit and CAN external interface circuit; The duty that reads comprises all state parameters of controlled device; But what can show on the two-way mining remote-controlled transmitter is limited in scope; Therefore only select state parameter that the user is provided with, that be concerned about most to reply; In case receive the information of two-way mining remote-controlled transmitter, comprise operation information and regularly ask for two kinds of status informations that the state parameter that the user is provided with is handled the back by the packing of second core processor and sent to two-way mining remote-controlled transmitter through second radio communication circuit.
As a kind of preferred version of the utility model, when a plurality of two-way mining remote-controlled transmitters are worked simultaneously,, serve as main the completion with two-way mining remote-controlled transmitter through the wireless transmission of wireless collision prevention algorithm completion data, two-way mining receiver cooperates; Be specially:, must register two-way mining remote-controlled transmitter when starting shooting to two-way mining receiver of remote-control sytem, but the two-way mining remote-controlled transmitter ability normal remote control controlled device that succeeds in registration; When no matter when two-way mining remote-controlled transmitter need send information, all need in advance wireless channel to be intercepted, when listening to channel idle, just send information; Transmission is all adopted with the reception information frame and is decided the frame length mode; When listening to channel busy, the frame length of delaying time prolongs a random time again, and the span of this random time is 0~1 frame length time, intercepts once more, listens to channel once more when busy, prolongs one again and decides frame length time and another random time; Twice collision prevention failure then this time operation abandons; The continuous frame that occurs for three times abandons phenomenon and prompt alarm occurs at two-way mining remote-controlled transmitter display end, simultaneously, causes information to abandon continuously for avoiding two-way mining remote-controlled transmitter to crash, and two-way mining remote-controlled transmitter is restarted automatically under this situation; Therefore for avoiding the serious conflict of wireless channel to produce congested; Have only two two-way mining remote-controlled transmitters to work at the same time generally speaking; During particular job face, answer fragmentary works, distribute number of registration by section; Have only four two-way mining remote-controlled transmitters ability operate as normal in the section at most, exceed remote control distance and forbid to operate with the operating personnel that can't see controlled device;
Two-way mining receiver receives the information of satisfactory any one two-way mining remote-controlled transmitter and all replys immediately; Be log-on message the two-way mining remote-controlled transmitter of registration less than the time agree registration; When registering two-way mining remote-controlled transmitter and having expired; Automatically deletion registration the earliest number, the two-way mining remote-controlled transmitter of new registration in the interpolation; When receiving registered two-way mining remote-controlled transmitter normal running information, two-way mining remote-controlled transmitter setup parameter during according to registration will reply to two-way mining remote-controlled transmitter from the relevant parameter that controlled device CAN bus is read; Operation information as for normal running information, sends to the master control system of controlled device, complete operation remote control through controlled device CAN bus after two-way mining receiver is simply comprehensively declared mistake; Because as long as two-way mining receiver is to receive that satisfactory information all replys, so two-way mining remote-controlled transmitter will prolong one when busy and decides the frame length time and add collision prevention at random again listening to channel.
The beneficial effect of the utility model is: the two-way mining remote control system that the utility model proposes; The mine equipment operating personnel can leave under the situation of controlled mechanical certain distance; Can realize straighforward operation to controlled machinery; Can see the situation of change of three groups of controlled machine performance parameters of care during operation in real time, guarantee the highly gassy mine safety work, relate to operation and the real-time status parameter wireless backhaul and the demonstration of controlled machinery.Establish the OLED Chinese word library in the utility model in the core processing single chip and realize the running state parameter of controlled machinery, the Chinese prompt of fault message, the handled easily personnel carry out Stateful Inspection and fault judgement to machinery.The utility model is applicable to the underground mining mining machinery.
Description of drawings
Fig. 1 is a kind of theory structure block diagram of the two-way remote control of the utility model.
Fig. 2 is the schematic appearance of the utility model two-way remote control.
Fig. 3 is the receiver theory structure block diagram of the utility model.
Accompanying drawing marks as follows:
1, intrinsic safety battery pack; 2, assortment of keys;
3, OLED liquid crystal display circuit; 4, core processing single-chip microcomputer;
5, radio communication circuit; 6, wired communication interface;
7, data record circuit; 8, intrinsic safety shell;
9, power conversion part; 10, the second core processing single-chip microcomputer;
11, second radio communication circuit; 12, CAN interface circuit;
13, buffer circuit; 14, the CAN external interface circuit after the isolation;
15, the second data record circuit; 16, flame proof cavity.
The specific embodiment
Specify the preferred embodiment of the utility model below in conjunction with accompanying drawing.
Embodiment one
The utility model has disclosed a kind of two-way mining remote control system, and said system comprises two-way mining remote-controlled transmitter, two-way mining receiver.
Said two-way mining remote-controlled transmitter comprises first core processor, first power supply, input block, first display unit, first radio communication circuit, the first data record circuit; Said first core processor connects first power supply, input block, first display unit, first radio communication circuit, the first data record circuit.
Said two-way mining receiver comprises second core processor, second source, second radio communication circuit, the second data record circuit, CAN interface circuit, buffer circuit and CAN external interface circuit; Said second core processor connects second source, second radio communication circuit, the second data record circuit, CAN interface circuit, and said CAN interface circuit, buffer circuit, CAN external interface circuit connect successively; Said two-way mining receiver is connected with the master control system of controlled device.
[two-way mining remote-controlled transmitter]
See also Fig. 1, Fig. 2, in the present embodiment, the input block of said two-way mining remote-controlled transmitter is 17 dataway operation buttons 2, the miniature key switch A9P in operation push-button 2 employing Omrons; OLED liquid crystal display circuit 3 is selected the VGY12864C (3V) of Visionox company for use, and this OLED can show 4 line data simultaneously.In addition, the intrinsic safety battery pack 1 of the utility model system (i.e. first power supply) is selected four joint rechargeable Ni-H 2 batteries series connection for use, and the integral body of connect with battery intrinsic safety assembly is also watered envelope.Core processing single-chip microcomputer 4 is selected MSP430F149 type single-chip microcomputer for use.Core processing single-chip microcomputer 4 is direct bus with OLED liquid crystal display circuit 3, radio communication circuit 5, wire communication circuit 6, data record circuit 7 and is connected, and bus scheduling is handled by core single-chip microcomputer 4.
Wherein, radio communication circuit 5 is for selecting the CC1100 of TI company for use; Wire communication circuit 6 is a spare interface here, only debugs usefulness, in the work need not, select SN75LBC184D type RS485 transceiver for use.Data record circuit 7 is selected the FM25L04 of RAMTRON company for use, passes through bus access by core processing single-chip microcomputer 4.Intrinsic safety shell 8 mainly is to be fitted together all circuit bank, and guarantees the whole essential safe type that is, can be in dangerous situation Secure Application such as high gas.
[two-way mining receiver]
As shown in Figure 3, in the present embodiment, second radio communication circuit 11 of two-way mining receiver is also selected the CC1100 of TI company for use, also carries out exchanges data with it by 10 controls of the second core processing single-chip microcomputer; The second core processing single-chip microcomputer 10 is selected MSP430F149 type single-chip microcomputer for use; CAN interface circuit 12 is selected the SJA1000T of PHILIPS company for use, also carries out exchanges data with it by 10 controls of the second core processing single-chip microcomputer; Buffer circuit 13 is selected the high-speed figure buffer circuit HCPL2631-300 type light-coupled isolation of AGILENT company for use; CAN external interface circuit 14 after the isolation is selected the PCA82C251 type CAN transceiver of PHILIPS company for use, directly is connected with the master control CAN bus of controlled machinery; The second data record circuit 15 is selected the FM25L04 of RAMTRON company for use, passes through bus access by the second core processing single-chip microcomputer 10; Flame proof cavity 16 is not the part of this device; But the receiver of this device is an electric component that is placed on (wireless signal receiving antenna stretches out the flame proof cavity through the flame proof horn mouth) in the flame proof cavity 16 of machinery, uses at dangerous situations such as high gas guaranteeing; Power conversion part 9 provides the power supply of different voltages for the operate as normal of circuit.
The course of work of the utility model system is following:
During work; The utility model core processing single-chip microcomputer 4 is after receiving push button signalling 2; Utilize total line traffic control that the data of required wireless transmission are sent to radio communication circuit 5; Radio communication circuit 5 sends to data wireless and is contained on the controlled receiver that stands away mechanically, realizes wireless distant control function to controlled machinery, and radio communication circuit 5 receives the return information of mechanical end-receiver simultaneously; And return information is forwarded to core processing single-chip microcomputer 4; Return information is after core processing single-chip microcomputer 4 is handled, and the information that according to circumstances will show is sent to OLED liquid crystal display circuit 3 and shows, thereby realizes the information interaction of operating personnel and controlled machine performance.When fault message, when showing,, fault message is recorded in the data record circuit 7 by 4 controls of core processing single-chip microcomputer.
After powering on, receiver promptly works always; Moment monitoring wireless channel, second radio communication circuit 11 receives wireless data, gives the second core processing single-chip microcomputer 10 after the demodulation; The second core processing single-chip microcomputer 10 is comprehensively judged; Require timing to CAN interface circuit 12 transmission left and right sides remote states according to master control, this status data sends on the master control CAN bus of controlled machinery behind buffer circuit 13 and CAN external interface circuit 14, and master control is accomplished corresponding control action according to state again; Meanwhile, the second core processing single-chip microcomputer 10 also can regularly pass through CAN interface circuit 12, buffer circuit 13 and CAN external interface circuit 14, reads the real-time working state of controlled machinery from the CAN bus of master control; The duty that reads has comprised all state parameters of controlled machinery; But what can show on the two-way remote control is limited in scope; Therefore three groups of state parameters that the user is concerned about most only selecting the user to be provided with are replied; In case receive the information (comprise operation information and regularly ask for two kinds of status informations) of two-way remote control, these three groups of state parameters are handled the back by 10 packings of the second core processing single-chip microcomputer and are sent to the two-way remote control end through second radio communication circuit 11.
When a plurality of two-way remote controls were worked simultaneously, wireless collision prevention algorithm was main the completion with the two-way remote control, and receiver cooperates; Specific descriptions are: when two-way remote control is started shooting, must register to receiver, the two-way remote control that succeeds in registration just can normal remote control machinery; When no matter when two-way remote control need send information, all need in advance wireless channel to be intercepted, when listening to channel idle, just send information; Transmission is all adopted with the reception information frame and is decided the frame length mode; When listening to channel busy, the frame length of delaying time prolongs a random time again, and the span of this random time is 0~1 frame length time, intercepts once more, listens to channel once more when busy, prolongs one again and decides frame length time and another random time; Twice collision prevention failure then this time operation abandons; The continuous frame that occurs for three times abandons phenomenon and prompt alarm occurs at the two-way remote control display end, simultaneously, causes information to abandon continuously for avoiding two-way remote control to crash, and two-way remote control is restarted automatically under this situation; Therefore for avoiding the serious conflict of wireless channel to produce congested; Have only two two-way mining remote-controlled transmitters to work at the same time generally speaking; During particular job face, answer fragmentary works, distribute number of registration by section; Have only four two-way remote controls ability operate as normal in the section at most, exceed remote control distance and forbid to operate with the operating personnel that can't see controlled machinery.
The main behavior of the cooperation of receiver is: the information that receives satisfactory any one two-way remote control is all replied immediately; Be log-on message the registration two-way remote control less than the time agree registration; When the registration two-way remote control has been expired; Automatically deletion registration the earliest number, the two-way remote control of new registration in the interpolation; When receiving registered two-way remote control normal running information, the two-way remote control setup parameter will reply to two-way remote control from the relevant parameter that mechanical CAN bus is read during according to registration; Operation information is simply comprehensively declared mistake (like left remote control assigned direction to left and right remote control assigned direction to the right at receiver end; During the logic conflict; Do not send the associative operation control information to master control) after; As being normal running information, send to mechanical master control system, complete operation remote control through mechanical CAN bus; Because as long as receiver is to receive that satisfactory information all replys, so the two-way remote control end will prolong one when busy and decides the frame length time and add collision prevention at random again listening to channel.
In sum; Two-way mining remote control system and method that the utility model proposes; The mine equipment operating personnel can realize the straighforward operation to controlled machinery leaving under the situation of controlled mechanical certain distance, can see the situation of change of three groups of controlled machine performance parameters of care during operation in real time; Guarantee the highly gassy mine safety work, relate to operation and the real-time status parameter wireless backhaul and the demonstration of controlled machinery.Establish the OLED Chinese word library in the utility model in the core processing single chip and realize the running state parameter of controlled machinery, the Chinese prompt of fault message, the handled easily personnel carry out Stateful Inspection and fault judgement to machinery.The utility model is applicable to the underground mining mining machinery.
Here description of the utility model and application is illustrative, is not to want the scope of the utility model is limited in the above-described embodiments.Here the distortion of the embodiment that is disclosed and change are possible, and the replacement of embodiment is known with the various parts of equivalence for those those of ordinary skill in the art.Those skilled in the art are noted that under the situation of spirit that does not break away from the utility model or substantive characteristics, and the utility model can be with other form, structure, layout, ratio, and realize with other assembly, material and parts.Under the situation that does not break away from the utility model scope and spirit, can carry out other distortion and change here to the embodiment that is disclosed.

Claims (2)

1. a two-way mining remote control system is characterized in that, said system comprises two-way mining remote-controlled transmitter, two-way mining receiver;
Said two-way mining remote-controlled transmitter comprises first core processor, first power supply, input block, first display unit, first radio communication circuit, the first data record circuit; Said first core processor connects first power supply, input block, first display unit, first radio communication circuit, the first data record circuit;
Said two-way mining receiver comprises second core processor, second source, second radio communication circuit, the second data record circuit, CAN interface circuit, buffer circuit and CAN external interface circuit; Said second core processor connects second source, second radio communication circuit, the second data record circuit, CAN interface circuit, and said CAN interface circuit, buffer circuit, CAN external interface circuit connect successively; Said two-way mining receiver is connected with the master control system of controlled device.
2. two-way mining remote control system according to claim 1 is characterized in that:
Said two-way mining remote-controlled transmitter also comprises wired telecommunication circuit, is connected with first core processor.
CN2011205133783U 2011-12-09 2011-12-09 Remote control system for bidirectional mine Expired - Fee Related CN202381094U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011205133783U CN202381094U (en) 2011-12-09 2011-12-09 Remote control system for bidirectional mine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011205133783U CN202381094U (en) 2011-12-09 2011-12-09 Remote control system for bidirectional mine

Publications (1)

Publication Number Publication Date
CN202381094U true CN202381094U (en) 2012-08-15

Family

ID=46629607

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011205133783U Expired - Fee Related CN202381094U (en) 2011-12-09 2011-12-09 Remote control system for bidirectional mine

Country Status (1)

Country Link
CN (1) CN202381094U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102393999A (en) * 2011-12-09 2012-03-28 天地上海采掘装备科技有限公司 Bidirectional remote control system and method for mining
CN102393999B (en) * 2011-12-09 2016-12-14 天地上海采掘装备科技有限公司 A kind of two-way mine remote control system and method
CN106640072A (en) * 2016-12-31 2017-05-10 太重煤机有限公司 Bidirectional communication remote control device for coal mining machine and communication method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102393999A (en) * 2011-12-09 2012-03-28 天地上海采掘装备科技有限公司 Bidirectional remote control system and method for mining
CN102393999B (en) * 2011-12-09 2016-12-14 天地上海采掘装备科技有限公司 A kind of two-way mine remote control system and method
CN106640072A (en) * 2016-12-31 2017-05-10 太重煤机有限公司 Bidirectional communication remote control device for coal mining machine and communication method

Similar Documents

Publication Publication Date Title
CN201934117U (en) Electro-hydraulic control system for hydraulic support in working face
CN102071956A (en) Electro-hydraulic control system for working surface hydraulic support
CN101997727B (en) Device for seamless switching of host and standby of communication management machine and method thereof
CN105406589A (en) Intellectual press plate system for relay protection of transformer substation
CN201437473U (en) Failure monitoring system for belt conveyor
CN105487476A (en) System and method of management and control of quasi-rectangular shield construction
CN203412609U (en) Novel hydraulic bracket controller
CN203350667U (en) Hand-held terminal for public works operation safety monitoring system
CN202381094U (en) Remote control system for bidirectional mine
CN104932373A (en) Intelligent industrial network protocol wireless converter
CN205105003U (en) Wisdom family terminal
CN203403881U (en) Coal mining machine continuing remote control system on coal mine fully-mechanized working face
CN103321665B (en) Support controller for electrohydraulic control system
CN203137185U (en) Safety helmet with immediate calling function
CN203466976U (en) Underground double-mode wireless network system for mines
CN102393999A (en) Bidirectional remote control system and method for mining
CN201984619U (en) Full duplex robot wireless remote control apparatus as well as handheld operating box and receiver therein
CN202257214U (en) Monitoring equipment and remote monitoring system
CN102393999B (en) A kind of two-way mine remote control system and method
CN206061033U (en) A kind of industrial intercommunication broadcast system with fire hazard monitoring function
CN205195434U (en) A long -range visual monitored control system for block terminal
CN202935897U (en) Sudden-stop lock switch position recognition device of belt conveyor
CN202677603U (en) Multifunctional remote controller for teaching
CN105357569A (en) Intelligent, bidirectional and multi-functional television remote controller
CN207339421U (en) A kind of special transformer acquisition terminal wireless control system

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120815

Termination date: 20131209