CN205930768U - Redundant interlocking remote control device of grade crossing - Google Patents
Redundant interlocking remote control device of grade crossing Download PDFInfo
- Publication number
- CN205930768U CN205930768U CN201620945788.8U CN201620945788U CN205930768U CN 205930768 U CN205930768 U CN 205930768U CN 201620945788 U CN201620945788 U CN 201620945788U CN 205930768 U CN205930768 U CN 205930768U
- Authority
- CN
- China
- Prior art keywords
- control system
- field
- cable
- signal
- control unit
- 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
Links
Landscapes
- Alarm Systems (AREA)
- Selective Calling Equipment (AREA)
Abstract
The utility model provides a redundant interlocking remote control device of grade crossing, includes central control system and one set at least field control system, the field control system includes field control unit and connected grade crossing's on -the -spot signal system and field control equipment, central control system include video monitor, audio frequency surveillance center and structure the same / the control unit and the 2nd the control unit that each other are equipped with for redundant heat, its effect: firstly, receive and write down the video information and the signal message of the passback of field control system, decode video information and send video monitor to carry out synchronous supervision, or carry out the double entry demonstration on the PC display that the control unit was equipped with, secondly, send corresponding control command according to the signal message of field control system passback to the field control system to realize grade crossing's remote control management. This centralized control device adopts hardware and software two redundant, and the security is high, and job stabilization is reliable, and the commonality is strong, can manage a plurality of grade crossing simultaneously, practices thrift the manpower.
Description
Technical field
This utility model is related to one kind and is used for level crossing control device and its centralized control method, more particularly, to a kind of railway road
Mouth redundancy interlocking remote control.
Background technology
At present, in the known management in level crossing, substantially or in a large number using live labor management, rely on schedule voice
Inform or railway signal informs car, then manually operated and carry out crossing protection；Or by railway dispatching and remotely control
Operator merge office, are informed in advance by row's car scheduling, then carry out remote operation by remote control operation personnel, realize road junction
Long-range protection；In the above process, there is problems that：
1. automaticity is low, and the road junction of manual site's management needs to configure substantial amounts of personnel, and management cost is high；
2. the level of informatization is low, does not have automated management record, is unfavorable for operating analysis；
3. equipment and original railway signal system each independent operating, still manually transmit signal, do not have signal to hand over
Change and share, the efficiency of management is low；
Authorization Notice No. is that the utility model patent " control system for railway crossings " of CN201980256.U adopts center to control
System, video/audio monitoring system, optical fiber telecommunications system and the cooperation of road junction field device system control, and preferably resolve
State deficiency, but this central control system does not have redundant configuration, there is the security risk of system overall failure, once certain control unit
Or certain component failure, then whole system is ineffective；Crossing safety accident is led to when serious.
Utility model content
The purpose of this utility model is to provide a kind of level crossing redundancy interlocking remote centralized control device, with overcome above-mentioned
Deficiency with the presence of technology.
This utility model adopts the technical scheme that：
A kind of level crossing redundancy interlocking remote centralized control device, including central control system and at least a set of field control system
System, central control system is connected with field control system by optical cable；
Described central control system include video monitor, Voice Surveillance center and structure identical/be mutually redundant hot standby
Two sets of control units, i.e. the first control unit and the second control unit；
It is connected by ethernet line between first control unit and the second control unit, the first control unit and second controls
Unit is connected with field control system by optical cable respectively, is connected with video monitor by vision cable, Voice Surveillance center
It is connected with the live audio optical transmitter and receiver set by field control system by voice-frequency cable；
Described first control unit is identical with the second control unit structure, including the control panel being sequentially connected, controller, friendship
Change planes and fiber optical transceiver group and the PC being connected with switch and decoder, fiber optical transceiver group includes signal optical fibre transmitting-receiving
Device and video optical fiber transceiver；
Described control panel is connected with controller by cable, and controller is connected with switch by Ethernet, and switch leads to
Cross Ethernet to be connected with signal optical fibre transceiver and video optical fiber transceiver respectively, the switch of the first control unit and second is controlled
Connected by Ethernet between the switch of unit processed, described PC is connected with switch by Ethernet, and by video electricity
Cable connects PC display, and described decoder is connected with switch by Ethernet, and connects video monitor by vision cable；
Described field control system includes the on-site signal system of field control unit and connected level crossing
With field control equipment, described on-site signal system include track signal, scheduling signals, anti-rush signal, live artificial signss with
And interlocking signal, described field control equipment includes speaker, track signal lamp, guard lamp, illuminator and barrier machine；
Described field control unit includes：Field camera, live video fiber optical transceiver, on-site signal optical fiber transceiving
Device, field controller, signals collecting isolator, live audio optical transmitter and receiver, audio frequency amplifier and switch controller；
Field control system is connected with the video optical fiber transceiver of central control system by live video fiber optical transceiver,
It is connected with the signal optical fibre transceiver of central control system by on-site signal fiber optical transceiver；
Described field camera passes through vision cable or network cable is connected with live video fiber optical transceiver；
Described on-site signal fiber optical transceiver is connected with field controller by ethernet line, audio frequency amplifier, switch control
Device processed and signals collecting isolator are connected with field controller by cable respectively；
Described signals collecting isolator is connected with the on-site signal system of level crossing by cable；
Described switch controller passes through track signal lamp, guard lamp, illuminator and the railing of cable and field apparatus
Machine connects；
Described live audio optical transmitter and receiver one end is connected with the audio frequency optical transmitter and receiver at Voice Surveillance center, and the other end passes through audio-frequency electric
Cable is connected with audio frequency amplifier, audio frequency amplifier outfan connect speaker.
Its further technical scheme is：Described first control unit and the second control unit switch pass through respectively
Vision cable connects videocorder, and videocorder connects video display by vision cable；The video that videocorder receives to switch
Signal carries out recording and preserves, and carries out video by video display and show, when video-frequency monitor fault, can be recorded by operation
Camera transfers the video signal of this fault detector part, temporarily substitutes this video-frequency monitor by video display and realizes synchronous prison
Depending on.
Further：Described Voice Surveillance center includes microphone, audio converter and audio frequency optical transmitter and receiver, and audio converter leads to
Cross voice-frequency cable to be connected with microphone and audio frequency optical transmitter and receiver respectively, audio frequency optical transmitter and receiver passes through voice-frequency cable with live audio optical transmitter and receiver even
Connect；
Described Voice Surveillance center sends voice control command for manager to field control system；Audio converter is used
In selectively, audio alarm and voice warning are carried out to different road junctions；Audio frequency optical transmitter and receiver is used for by its transmitting terminal audio frequency
The audio analog signals that transducer transmits are converted into optical signal, and by fiber-optic transfer to its receiving terminal, light is believed by receiving terminal again
Number it is converted into audio analog signals.
Described controller and field controller adopt PLC；Described switch controller is continued using catalyst or centre
Electrical equipment；Described ethernet line adopts RJ45 interface.
Due to taking technique scheme, the level crossing redundancy interlocking remote centralized control device of this utility model has following
Beneficial effect：
1. the level crossing redundant remote centralized control equipment of this utility model, using industrial PLC controller, working stability can
Lean on, safe, highly versatile；
2. the level crossing redundant remote centralized control equipment of this utility model, using hardware and software dual redundant, redundant system
For two sets of independent PLC system, process master/slave device switching using separated links；When redundant system is operated, PLC A, PLC
B control system（Processor, communication, I/O etc.）Independent operating, is grasped the control to distributed I/O by the PLC of main system；
PLC program in PLC A, PLC B system is made up of nonredundancy user program section and redundant subscribers program segment, and main system PLC is held
The whole user program of row, back-up system PLC only carries out nonredundancy user program section, and skips redundant subscribers program segment.Work as PLC
When A is main equipment, PLC A grasps the control to distributed I/O, and now PLC B is in holding state；Set based on the PLC B
When standby, PLCB grasps the control to distributed I/O, and now PLC A is in holding state）, two sets of systems be simultaneously operable and
Hot standby each other, when a wherein set of fault, another set of still can normal work, safe；
3. the level crossing redundant remote centralized control equipment of this utility model, can the existing railway signal of secure accessing and operation
Information
, strong adaptability；
4. adopt the level crossing redundant remote centralized control equipment of this utility model, whole runnings all automatically save, side
Just search and manage；
5. adopt the level crossing redundant remote centralized control equipment of this utility model, multiple level crossings can be managed simultaneously, section
About a large amount of human costs, realize round-the-clock management in 24 hours.
Level crossing redundancy interlocking remote centralized control device to this utility model and its collection with reference to the accompanying drawings and examples
The technical characteristic of prosecutor method is further described.
Brief description
Fig. 1：The level crossing redundancy interlocking remote centralized control device structural representation of this utility model（A set of center controls system
System, a set of field control system）；
Fig. 2：The level crossing redundancy interlocking remote centralized control device structural representation of this utility model（A set of center controls system
System, N set field control system）；
A central control system, A1 first control unit, A2 second control unit, A3 video monitor, A4
Voice Surveillance center, B field control system, B01 field control unit, B02 on-site signal system, the control of B03 scene
Control equipment.
Specific embodiment,
Embodiment one
A kind of level crossing redundancy interlocking remote centralized control device, including central control system A and a set of field control system
B, central control system is connected with field control system by optical cable；
Described central control system A include video monitor A3, Voice Surveillance center A4 and structure identical/be mutually redundant
Hot standby two sets of control units, i.e. the first control unit A1 and the second control unit A2；
It is connected by ethernet line between first control unit and the second control unit, the first control unit and second controls
Unit is connected with field control system by optical cable respectively, is connected with video monitor by vision cable, Voice Surveillance center
It is connected with the live audio optical transmitter and receiver set by field control system by voice-frequency cable；
Described first control unit is identical with the second control unit structure, including the control panel being sequentially connected, controller, friendship
Change planes and fiber optical transceiver group and the PC being connected with switch and decoder, fiber optical transceiver group includes signal optical fibre transmitting-receiving
Device and video optical fiber transceiver；
Described control panel is connected with controller by cable, and controller is connected with switch by Ethernet, and switch leads to
Cross Ethernet to be connected with signal optical fibre transceiver and video optical fiber transceiver respectively, the switch of the first control unit and second is controlled
Connected by Ethernet between the switch of unit processed, described PC is connected with switch by Ethernet, and by video electricity
Cable connects PC display, and described decoder is connected with switch by Ethernet, and connects video monitor by vision cable；
Described first control unit and the effect of the second control unit：One receives and records field control system passback
Video information and signal message, video-information decoding is sent video monitor to synchronize supervision, or in control unit outfit
Compound display is carried out on PC display, two is to send phase according to the signal message of field control system passback to field control system
The control command answered, thus realize the remote control management of level crossing；
The effect of described control panel is：Input control operation instruction, including：Speaker, track signal lamp, guard lamp, photograph
The opening and closing of bright device and the start and stop of barrier machine；
The effect of described controller：One is that the control operation instruction inputting control panel reaches switch, then passes through signal
Fiber optical transceiver is sent to field control system, and two is to collect the various signals of field control system by switch to reach PC
Machine, then status display is carried out by PC display；
The effect of described PC：Switch is sent, turns through the 24v signal of telecommunication that field control system analysis identifies by one
Change video signal into, finally carry out compound display in PC display, two is the operational order that input controls field apparatus, including raising
Sound device, track signal lamp, the start and stop of guard lamp, illuminator opening and closing and barrier machine；
The effect of described video optical fiber transceiver is：The video signal that reception transmits from field control system is delivered and is changed planes
Process；
The effect of described signal optical fibre transceiver：Field control system is gathered and divides through field control system by one
Analyse and the 24v signal of telecommunication of on-site signal system identifying, the first control unit reaching central control system by ethernet line
With the second control unit, two is that the control command sending central control system transmits field control system, and controls scene to set
Standby execution is corresponding to be operated；
The effect of described switch：One is to receive and dispatch the control operation instruction of PC and control panel input by signal optical fibre
Device is sent to field control system, two be by field control system from on-site signal system acquisition to signal message with another set of
The switch of control unit system carries out signal exchange, and three is that the video signal transmitting field control system transmits decoder solution
Code, reaches video monitor and carries out audio video synchronization supervision；
The effect of described decoder is：The video signal decoding that switch transmission is come, is then passed to video monitor and enters
Row audio video synchronization monitors；
Described field control system includes the on-site signal system of field control unit B01 and connected level crossing
System B02 and field control equipment B03, described on-site signal system includes track signal, scheduling signals, prevents rushing signal, live people
Work signal and interlocking signal, described field control equipment include speaker, track signal lamp, guard lamp, illuminator and
Barrier machine；
Described field control unit B01 includes：Field camera, live video fiber optical transceiver, on-site signal optical fiber are received
Send out device, field controller, signals collecting isolator, live audio optical transmitter and receiver, audio frequency amplifier and switch controller；
Field control system is connected with the video optical fiber transceiver of central control system by live video fiber optical transceiver,
It is connected with the signal optical fibre transceiver of central control system by on-site signal fiber optical transceiver；
Described field camera passes through vision cable or network cable is connected with live video fiber optical transceiver；
Described on-site signal fiber optical transceiver is connected with field controller by ethernet line, audio frequency amplifier, switch control
Device processed and signals collecting isolator are connected with field controller by cable respectively；
Described signals collecting isolator is connected with on-site signal system B02 of level crossing by cable；
Described switch controller passes through track signal lamp, guard lamp, illuminator and the railing of cable and field apparatus
Machine connects；
Described live audio optical transmitter and receiver one end is connected with the audio frequency optical transmitter and receiver at Voice Surveillance center, and the other end passes through audio-frequency electric
Cable is connected with audio frequency amplifier, audio frequency amplifier outfan connect speaker；
The effect of described field control system：One be by from on-site signal system acquisition to signal message and scene take the photograph
The picture signal that camera is followed the tracks of transmits central control system after processing, two is to be set according to the instruction control scene of central control system
Standby execution corresponding operating, three is to send, by speaker, the voice control command that Voice Surveillance center A4 sends；
Field camera acts on：By the video signal obtaining transmission live video fiber optical transceiver；
The effect of live video fiber optical transceiver is：The video signal that video camera is transmitted passes through vision cable or network electricity
Cable is sent to the video optical fiber transceiver of central control system, after the decoder of switch decodes, will by vision cable
Video signal reaches video-frequency monitor and carries out audio video synchronization supervision；
The effect of signals collecting isolator is：By from on-site signal system acquisition to signal be converted into unified 24v electricity
Signal, field controller is sent to by cable；
The effect of field controller：One is that the 24v signal of telecommunication that signals collecting isolator transmits is analyzed and identifies letter
The signal of telecommunication is reached the signal optical fibre transceiver of central control system by on-site signal fiber optical transceiver and optical cable by number type,
Two is that instruction according to central control system sends execution signal to switch controller, completes to signal lighties, guard lamp, illumination dress
Put the control of opening and closing and barrier machine start and stop；Or amplify the audio signal sending warning by audio frequency；
The effect of on-site signal fiber optical transceiver is：One is to reach the 24v signal of telecommunication analyzed through field controller, identify
The signal optical fibre transceiver of central control system, the signal of telecommunication is reached switch by ethernet line by signal optical fibre transceiver again,
Two is that the operational order transmitting from the signal optical fibre transceiver of central control system is transmitted field controller；
The effect of live audio optical transmitter and receiver is：Microphone voice codec that Voice Surveillance center is transmitted, converted, then
Conveying audio frequency amplifier；
The effect of audio frequency amplifier is：Sending through the decoding of live audio optical transmitter and receiver or field controller are sent warning
Audio signal amplify drive the speaker and give a warning sound；
The effect of switch controller is：The instruction being sent according to field controller, complete to track signal lamp, guard lamp,
Illuminator opening and closing and the control of barrier machine start and stop.
Described first control unit and the second control unit switch respectively videocorder, record are connected by vision cable
Camera connects video display by vision cable；The video signal that videocorder receives to switch carries out recording preservation, and leads to
Cross video display and carry out video and show, when video-frequency monitor fault, this fault detector can be transferred by operating videocorder
Partial video signal, temporarily substitutes this video-frequency monitor by video display and realizes synchronous supervision.
Described Voice Surveillance center includes microphone, audio converter and audio frequency optical transmitter and receiver, and audio converter passes through audio-frequency electric
Cable is connected with microphone and audio frequency optical transmitter and receiver respectively, and audio frequency optical transmitter and receiver is connected with live audio optical transmitter and receiver by voice-frequency cable；
The effect at described Voice Surveillance center is：Manager is provided to send voice control command to field control system；Sound
The effect of frequency transducer is：Selectively audio alarm and voice warning can be carried out to different road junctions；The work of audio frequency optical transmitter and receiver
With being：It is converted into optical signal by the audio analog signals that its transmitting terminal transmits audio converter, and arrived by fiber-optic transfer
Its receiving terminal, receiving terminal converts optical signals into audio analog signals again.
Described controller and field controller adopt PLC；Described switch controller is continued using catalyst or centre
Electrical equipment；Described ethernet line adopts RJ45 interface.
Embodiment two
A kind of level crossing redundancy interlocking remote centralized control device, covers field control system B including central control system A and N,
Central control system is connected with field control system by optical cable；The numerical value of N can determine level crossing as needed, typically may be used
Control and cover field control system to 3-6.
Claims (4)
1. a kind of level crossing redundancy interlocking remote centralized control device, including central control system（A）At least a set of field control
System（B）, central control system is connected with field control system by optical cable；
It is characterized in that：
Described central control system（A）Including video monitor（A3）, Voice Surveillance center（A4）And structure identical/superfluous each other
Two sets of standby control units of waste heat, i.e. the first control unit（A1）With the second control unit（A2）；
It is connected by ethernet line between first control unit and the second control unit, the first control unit and the second control unit
Be connected with field control system by optical cable respectively, be connected with video monitor by vision cable, Voice Surveillance centrally through
Voice-frequency cable is connected with the live audio optical transmitter and receiver set by field control system；
Described first control unit is identical with the second control unit structure, including the control panel being sequentially connected, controller, switch
The PC be connected with fiber optical transceiver group and with switch and decoder, fiber optical transceiver group include signal optical fibre transceiver and
Video optical fiber transceiver；
Described control panel is connected with controller by cable, and controller is connected with switch by Ethernet, switch pass through with
Too net is connected with signal optical fibre transceiver and video optical fiber transceiver respectively, and the switch of the first control unit and second controls single
Connected by Ethernet between the switch of unit, described PC is connected with switch by Ethernet, and by vision cable even
Connect PC display, described decoder is connected with switch by Ethernet, and connects video monitor by vision cable；
Described field control system（B）Including field control unit（B01）And the on-site signal of connected level crossing
System（B02）With field control equipment（B03）, described on-site signal system include track signal, scheduling signals, anti-rush signal,
Live artificial signss and interlocking signal, described field control equipment includes speaker, track signal lamp, guard lamp, illumination dress
Put and barrier machine；
Described field control unit（B01）Including：Field camera, live video fiber optical transceiver, on-site signal optical fiber transceiving
Device, field controller, signals collecting isolator, live audio optical transmitter and receiver, audio frequency amplifier and switch controller；
Field control system is connected with the video optical fiber transceiver of central control system, is passed through by live video fiber optical transceiver
On-site signal fiber optical transceiver is connected with the signal optical fibre transceiver of central control system；
Described field camera passes through vision cable or network cable is connected with live video fiber optical transceiver；
Described on-site signal fiber optical transceiver is connected with field controller by ethernet line, audio frequency amplifier, switch controller
It is connected with field controller by cable respectively with signals collecting isolator；
Described signals collecting isolator is connected with the on-site signal system of level crossing by cable；
Described switch controller passes through cable and track signal lamp, guard lamp, illuminator and the barrier machine of field apparatus connect
Connect；
Described live audio optical transmitter and receiver one end is connected with the audio frequency optical transmitter and receiver at Voice Surveillance center, the other end pass through voice-frequency cable with
Audio frequency amplifier connect, audio frequency amplifier outfan connect speaker.
2. level crossing as claimed in claim 1 redundancy interlocking remote centralized control device it is characterised in that：Described first controls list
Unit and the second control unit switch respectively by vision cable connect videocorder, videocorder pass through vision cable connection record
As display.
3. level crossing as claimed in claim 2 redundancy interlocking remote centralized control device it is characterised in that：
Described Voice Surveillance center includes microphone, audio converter and audio frequency optical transmitter and receiver, and audio converter is divided by voice-frequency cable
It is not connected with microphone and audio frequency optical transmitter and receiver, audio frequency optical transmitter and receiver is connected with live audio optical transmitter and receiver by voice-frequency cable.
4. level crossing as claimed in claim 3 redundancy interlocking remote centralized control device it is characterised in that：Described controller is with now
Field controller adopts PLC；Described switch controller adopts catalyst or auxiliary reclay；Described ethernet line adopts
RJ45 interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620945788.8U CN205930768U (en) | 2016-08-25 | 2016-08-25 | Redundant interlocking remote control device of grade crossing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620945788.8U CN205930768U (en) | 2016-08-25 | 2016-08-25 | Redundant interlocking remote control device of grade crossing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205930768U true CN205930768U (en) | 2017-02-08 |
Family
ID=57953386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620945788.8U Expired - Fee Related CN205930768U (en) | 2016-08-25 | 2016-08-25 | Redundant interlocking remote control device of grade crossing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205930768U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117022405A (en) * | 2023-10-10 | 2023-11-10 | 中国铁道科学研究院集团有限公司通信信号研究所 | Dual-machine control switching system with monitoring function |
-
2016
- 2016-08-25 CN CN201620945788.8U patent/CN205930768U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117022405A (en) * | 2023-10-10 | 2023-11-10 | 中国铁道科学研究院集团有限公司通信信号研究所 | Dual-machine control switching system with monitoring function |
| CN117022405B (en) * | 2023-10-10 | 2024-03-01 | 中国铁道科学研究院集团有限公司通信信号研究所 | Dual-machine control switching system with monitoring function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106218670A (en) | Level crossing redundancy interlocking remote centralized control device and centralized control method thereof | |
| CN107332919A (en) | A kind of urban fire control long-distance on-line monitoring system | |
| CN201179877Y (en) | Remote monitoring and failure processing apparatus for railway electricity | |
| CN102931724A (en) | Intelligent video monitoring system for electric power transmission and transformation | |
| CN109459994A (en) | A kind of building intelligent managing and control system | |
| CN102088207A (en) | Substation remote cooperative operation system | |
| CN103347096A (en) | IP intelligent cluster monitoring system based on EOC | |
| CN109586414A (en) | A kind of scheduler program auxiliary operation system and method | |
| CN101458520A (en) | Outband centralized management method for outdoor communication machine cabinet environment monitor | |
| CN105573228A (en) | Remote monitoring device of seawater desalination system | |
| CN103064363A (en) | Long-distance intelligent real-time online sensing monitoring system and method of electricity utilization residential quarter switch board room | |
| CN205930768U (en) | Redundant interlocking remote control device of grade crossing | |
| CN106274997A (en) | Level crossing long-distance centralized control and intelligent early-warning integral system | |
| CN102545385A (en) | Method for preventing misinformation of signals of switch device of transformer substation in power dispatching system | |
| CN109709874A (en) | A kind of subway comprehensive monitoring system intelligent gateway | |
| CN202084158U (en) | Intelligent integrated control system capable of giving acoustic image alarm | |
| CN205429886U (en) | Automatic the patrolling and examining of relay protection of transformer substation definite value is checked and remote operation device | |
| CN101646110A (en) | Signal reverse transmission system and method used for sharing-cable integrated services digital network | |
| CN105172845B (en) | Operation supervisory system for railway station | |
| CN203154690U (en) | Fire-fighting remote control system for intelligent substation | |
| CN202009264U (en) | Remote collaboration operating system for transformer station | |
| CN108639890A (en) | A kind of elevator monitoring system and software architecture | |
| CN205709262U (en) | A kind of convenient elevator control gear used | |
| CN104144324B (en) | A kind of mining fully-mechanized mining working network video monitor and control system | |
| CN209142157U (en) | A kind of railway station shipment control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 545616 No. 190, No. 3, A plant, No. 19, No. 19, early Yang Road, Liu Dong New District, Liuzhou, the Guangxi Zhuang Autonomous Region Patentee after: Guangxi yuan yuan Polytron Technologies Inc Address before: 545616 No. 190, No. 3, A plant, No. 19, No. 19, early Yang Road, Liu Dong New District, Liuzhou, the Guangxi Zhuang Autonomous Region Patentee before: GUANGXI YUANWANG TECHNOLOGY CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170208 Termination date: 20190825 |