CN102418560A - Coal mine worker positioning and managing system based on ZigBee technology - Google Patents
Coal mine worker positioning and managing system based on ZigBee technology Download PDFInfo
- Publication number
- CN102418560A CN102418560A CN2011104542848A CN201110454284A CN102418560A CN 102418560 A CN102418560 A CN 102418560A CN 2011104542848 A CN2011104542848 A CN 2011104542848A CN 201110454284 A CN201110454284 A CN 201110454284A CN 102418560 A CN102418560 A CN 102418560A
- Authority
- CN
- China
- Prior art keywords
- network
- base station
- personnel
- wireless
- information
- 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.)
- Pending
Links
Images
Abstract
The invention discloses a coal mine worker positioning and managing system based on a ZigBee technology. When a worker with an identification card passes through a working coverage of a wireless positioning base station, the identification card actively sends worker code information to the wireless positioning base station; the wireless positioning base station receives the information sent by the identification card and transmits the information to a network controller through a LonWork control bus; the network controller sends the data to a ground control center network through an Ethernet; and the ground control center network acquires and processes the information, and displays the information to a manager in real time. By the coal mine worker positioning and managing system, the real-time supervising ability of a coal mine manager and superior supervising departments on a running condition of a coal mine is improved; and powerful information insurance and support are supplied to rescuers after an accident happens.
Description
Technical field
The objective of the invention is to propose a kind of based on ZigBee technology coal mine personnel positioning and management system; Improve colliery administrative staff and supervisory department real-time monitoring ability, and after accident takes place, strong information guarantee and support are provided for the rescue personnel to colliery operating condition.
Background technology
In recent years, country is to the increasing demand rapid growth of coal, and coal industry is also developed on a large scale thereupon very much, but the colliery is great, serious accident happens occasionally, and still is unrealized to effective control of disaster accident.The personal management difficulty because the particularity of colliery industry, present ubiquity are gone into the well, aboveground personnel are difficult in time grasp personnel in the pit's DYNAMIC DISTRIBUTION and operation situation; In case accident takes place; Aboveground personnel's short of reliable down-hole information, the inefficiency of rescue and relief work, safety rescue, effect is undesirable; For this reason, the advanced personnel location system reliably of a cover is very important.After accident takes place, can accurately judge downhole production operating personnel's stranded position, distress personnel route of withdrawal, the Environmental Monitoring situation of down-hole etc., for the rescue personnel formulates the Information Assurance that the rescue scheme provides power.
Exist some personnel location systems at present on the market, deficiency is main as follows:
(1) personnel in the pit's tracking, that designation card adopts basically is RFID.This method is at mine well head place, or some other down-hole critical passage mouth, and the method for using radio-frequency card (RFID) to read writes down the method for tracking to the personnel of going into the well.There is following problem in this tag card: the effective time is short; Location personnel's loss is higher under the high-speed condition, and the radio-frequency card card reading speed is very limited, can not handle many people situation through card-reading system (for example go into the well by bus etc.) fast simultaneously, the phenomenon of skip can occur; The signal to noise ratio that communication mode is had relatively high expectations, poor anti jamming capability, and the subsurface environment condition is very complicated, disturbing factor is ubiquitous, particularly the getting working face of most critical; Reading/writing distance is limited, and the coupling of the direction position of designation card and the direction of reading and writing device antenna has certain requirement, and the flexibility of system is restricted greatly.
(2) unidirectional information transmission, the rate of information throughput is low.The direction of early stage personnel location system information transmission all snaps into the main website direction by sign, really has no idea to send information to the down-hole as the system that guarantees miner's safety, and the effect that this type systematic can be brought into play is had a greatly reduced quality.The low real-time that has influenced system of personnel location system information transmission data.
(3) down-hole control net or bus transfer rate is low, transmission range short, communication is unreliable, the bit error rate is high a node usually occurs and damages the situation that causes whole system to be paralysed.
Summary of the invention
The objective of the invention is to propose a kind of coal mine personnel location and management system; Improve colliery administrative staff and supervisory department real-time monitoring ability, and after accident takes place, strong information guarantee and support are provided for the rescue personnel to colliery operating condition.
The technical solution that realizes purpose is specific as follows: a kind of based on ZigBee technology coal mine personnel positioning and management system; Utilize the ZigBee location technology that the coal mine working personnel are positioned and follow the tracks of and management, comprise interface between personnel in the pit's fixer network, ground control centre network and the enterprises lan, and safety of coal mines supervision department network between interface, digital sampling and processing, searching and managing module, wireless identification card and wireless location base station; Adopt fiber optic Ethernet to be connected between ground control centre network and the personnel in the pit's fixer network; The ground control centre network uses fire wall that network is separated, and the Ethernet service internally is provided, externally provide and enterprises lan between interface and and safety of coal mines supervision department network between interface; Adopt the LonWorks control bus to connect and compose personnel in the pit's fixer network between network controller and the wireless location base station; The information exchange of Ethernet and LonWorks control bus is realized by the i.LON server in the network controller; When the personnel that carry tag card pass through the working range of wireless location base station; Tag card initiatively sends personnel's coded message to the wireless location base station; The wireless location base station sends information to network controller through the LonWorks control bus after receiving the information that tag card sends; Network controller sends the data to the ground control centre network through Ethernet again, is shown to administrative staff in real time after the ground control centre network collection and treatment information.
The present invention compared with prior art, its remarkable advantage: (1) adopts wireless identification card effective time long, can handle many quick situation through card-reading system of people's while; (2) bidirectional transfer of information, the rate of information throughput is higher.Improved the real-time of system.(3) improved the transfer rate of down-hole control net and bus.
Description of drawings
Fig. 1 is system network architecture figure.
Fig. 2 is the network controller theory diagram.
Fig. 3 is that theory diagram is formed in the base station.
Fig. 4 is a tag card theory of constitution block diagram.
The specific embodiment
System of the present invention is mainly used in the personnel in the pit and locomotive positioning is followed the tracks of.In use, go in the passage that personnel such as well passage, each exploiting field inlet possibly pass through the wireless location base station is installed the master of down-hole, and network through the computer of network layout and ground control centre.When the personnel that carry the positioning mark card or locomotive during through the base station of installing in the underworkings, the base station obtains the label information that personnel or locomotive carry, and gathers this personnel's elapsed time, location information automatically, and is sent to the management database on ground.Ground central station is handled from the code signal on the locating base station of down-hole; Realization to the collection of personnel in the pit and locomotive track and localization information, analyzing and processing, demonstrations in real time, history data store form, inquire about function such as printing; And be simultaneously displayed on the monitor of control centre; Administrative staff can be inquired about timely and accurately, observe various information, make things convenient for administrative staff that the personnel in the pit is managed the scheduling with equipment.Simultaneously,, can draw personnel's distribution situation of accident spot, so that help the rescue worker to implement rescue rapidly and accurately according to the personnel's distributed intelligence in the computer in case the down-hole has an accident at once.
The present invention utilizes the ZigBee location technology that the coal mine working personnel are positioned and follows the tracks of and management, and it comprises three big functional modules: grid module 1, ground monitoring module 2, down-hole positioning equipment module 3.Grid module 1 comprise between personnel in the pit's fixer network 11, ground control centre network 12 and the enterprises lan interface 13 and and safety of coal mines supervision department network between interface 14; Ground monitoring module 2 comprises digital sampling and processing 21, searching and managing module 22; Down-hole positioning equipment module 3 comprises wireless identification card 31, wireless location base station 32; Adopt the 100M fiber optic Ethernet to be connected between ground monitoring module 2 and the personnel in the pit's fixer network 11; Use in personnel in the pit's fixer network 11 that employing LonWorks control bus is connected between network controller and the wireless location base station 32; The information exchange task of Ethernet and LonWorks control bus is realized by the i.LON server in the network controller in personnel in the pit's fixer network 11; When the personnel that carry tag card pass through the working range of wireless location base station; Tag card initiatively sends personnel's coded message to the base station; The base station sends information to network controller through the LonWorks control bus after receiving the information that tag card sends; Network controller sends the data to ground monitoring module 2 through Ethernet again; Be shown to administrative staff in real time after the ground monitoring module 2 collection and treatment information, running status and situation that administrative staff understand and manage the colliery through ground monitoring module 2.
Grid module 1 comprise between personnel in the pit's fixer network 11, ground control centre network 12 and the enterprises lan interface 13 and and safety of coal mines supervision department network between interface 14 4 sub-module, characteristic is following:
1) personnel in the pit's fixer network 11: the some network controllers by the ring network form connects are formed; Each network controller connects several wireless location base stations 32; Adopt the 100M fiber optic Ethernet to be connected between downhole network controller and the network controller, employing LonWorks control bus connects between the wireless location base station 32; Network controller be used for the two-way communication of downhole wireless locating base station, with the communicating by letter of ground control centre network;
2) the ground control centre network 12: be made up of monitoring host computer, backup host, server (comprising fire wall, Web server, database server), surge protector etc., with the mode of Ethernet each monitoring host computer, main frame be connected with display screen etc. with server, main frame; Simultaneously, the access interface of enterprises lan and the access interface of safety of coal mines supervision department network externally are provided;
3) and the interface between the enterprises lan 13: form access service interface through the fire wall and the webserver; To enterprises lan access services is provided; Enterprises lan is collected relevant information needed through this service interface, is used for enterprise security production function department and person in charge and each mine condition of production is understood and is controlled;
4) and the interface 14 between the safety of coal mines supervision department network: form access service interface through the fire wall and the webserver; Supervision department provides access services to safety of coal mines; Realize the networking between Surveillance center and the safety of coal mines supervision department; Can make supervision department directly obtain coal information, understand the Safety of Coal Mine Production situation of grasping from the ground monitoring center through access service interface.
Ground monitoring module 2 comprises digital sampling and processing 21, searching and managing module 22; Digital sampling and processing 21 is made up of a station server, links to each other with personnel in the pit's fixer network 11 through Ethernet, carries data acquisition process software, gathers the personnel positioning data in real time and handles, stores; Data query administration module 22 is made up of Web server; Be connected with data server, many monitoring host computers through Ethernet; Operation related software system handles query requests and supervisory instruction that monitoring host computer sends in real time, proposes query requests according to respective queries to data server; The instruction of sending according to monitoring host computer end caretaker simultaneously, is sent instruction to the down-hole.
Down-hole positioning equipment module 3 has adopted the ZigBee wireless technology, has comprised wireless identification card 31 and wireless location base station 32; Adopt 2.4G ISM band radio communication between wireless location base station 32 and the wireless identification card 31, traffic rate adopts 250kbps; Wireless identification card 31 is in resting state when flat, when in the identification range in a certain base station and when being activated, initiatively send personnel's coded message to the base station, and sending finishes changes resting state over to, waits for the activation next time of base station; Wireless location base station 32 is made up of other supplementary modules such as voltage-stabilized power supply, wireless transceiver, microprocessor, memory, antennas; Constantly send carrier signal through antenna; When having the wireless identification cartoon and cross near the base station; The tag card chip is promptly waken up, and the chip that is in " resting state " originally is activated and the coded message that will contain self is modulated on the carrier wave and launches through the card internal antenna, and the base station receives the information that tag card sends through wireless transceiver.
Below in conjunction with accompanying drawing the present invention is done further explain.
System network architecture as shown in Figure 1 is divided into the two large divisions: ground monitoring network, down-hole Control Network.The ground monitoring center mainly is made up of monitoring host computer and monitoring software, backup host, UPS, printer, large-size screen monitors, server (comprising fire wall, database server), surge protector etc.The inner C/S structure that adopts of ground monitoring center LAN.Monitoring host computer is exactly a data collection host, and major function is to utilize Ethernet and underground equipment to communicate, and gathers personnel positioning information.The major function of database server is the data that storage is gathered by monitoring host computer.Web server mainly receives the request of networking client, and carries out socket with the ground central station monitoring host computer and communicate by letter, and obtains in real time and historical data, utilizes network that data and curve are presented on the client.The server network address that the Web client-requested is confirmed; Selection want to check in real time or historical data and curve, carry out the transmission of data through udp protocol and Web server, after server accepts request; Communicating by letter of foundation and collection main frame obtained data and transmitting and displaying.The down-hole Control Network mainly contains ring network to be formed, and connects some network controllers on the ring network.Each network controller can connect 32 locating base station.The network controller major function be with the two-way communication of down-hole locating base station, with the communicating by letter of ground monitoring network.The major function of locating base station is through wireless network the personnel in the pit to be carried out Tracking Recognition, simultaneously the personal information that recognizes is reached the ground monitoring center with certain data format.
Network controller as shown in Figure 2 is mainly by Ethernet switch, 1 i.LON100 server, and 1 optical fiber terminal box, 1 power transformer, D.C. regulated power supply, isolating coupler, the 24V battery is formed.Network controller is being born the important task of system communication.The parameter of ground central station, order become the signal of telecommunication through Ethernet switch.Carrier communication interface through the i.LON server is sent to the base station with parameter, order again.The data that the base station collects are sent to Ethernet switch and the signal of telecommunication are become the optical signal teletransmission to ground central station through the self adaptation 10/100Base Ethernet interface of i.LON server.
Base station as shown in Figure 3 mainly is made up of other supplementary modules such as power module of voltage regulation, wireless transceiver, microprocessor, memory, reception antenna, display module, infrared recipient, Lonworks interface module, audible-visual annunciator interfaces.The base station is the critical component of acquired signal, and it constantly sends carrier signal (searching signal) through transmitting antenna.In the time of near the worker who has tag card passes through substation; The tag card chip is promptly waken up; Originally the chip that is in " resting state " is activated and the coded message that will contain self is modulated on the carrier wave and launches through the card internal antenna, gets into resting state at once after sending successfully.Wherein the ZigBee wireless transceiver chip is to gather the first door passage of radio frequency marking card, also is a most important functional part.This inside is integrated wireless receiving circuit and the power of baseband signal output circuit takes place.It will receive identification code base-band information that tag card sends within it portion after demodulation, bandpass filtering shaping, offer microprocessor by output circuit output sequence serial signal (SPI).Microprocessor is gathered, is handled signal after receiving the signal of wireless transceiver output.
Designation card as shown in Figure 4 mainly is made up of modules such as supplying cell, Voltage stabilizing module, antenna, wireless transceivers.Be in resting state when wireless identification is stuck in standby, power consumption seldom just transmits when " being waken up " by near personnel positioning base station, has launched to change resting state at once again over to.When the worker who has tag card or locomotive during, immediately by system identification, and the information exchange through grid, the highway section (base station numbering) that this person is passed through, transfer to the ground monitoring center through the information such as numbering of time, tag card through monitoring base station.
Claims (4)
1. one kind based on ZigBee technology coal mine personnel positioning and management system; It is characterized in that utilizing the ZigBee location technology that the coal mine working personnel are positioned and follow the tracks of and management, comprise interface ［ 13 ］ between personnel in the pit's fixer network ［ 11 ］, ground control centre network ［ 12 ］ and the enterprises lan, and safety of coal mines supervision department network between interface ［ 14 ］, digital sampling and processing ［ 21 ］, searching and managing module ［ 22 ］, wireless identification card ［ 31 ］ and wireless location base station ［ 32 ］; Adopt fiber optic Ethernet to be connected between ground control centre network ［ 12 ］ and the personnel in the pit's fixer network ［ 11 ］; Ground control centre network ［ 12 ］ uses fire wall that network is separated, and the Ethernet service internally is provided, externally provide and enterprises lan between interface ［ 13 ］ and and safety of coal mines supervision department network between interface ［ 14 ］; Adopt the LonWorks control bus to connect and compose personnel in the pit's fixer network ［ 11 ］ between network controller and wireless location base station ［ 32 ］; The information exchange of Ethernet and LonWorks control bus is realized by the i.LON server in the network controller; When the personnel that carry tag card ［ 31 ］ pass through the working range of wireless location base station ［ 32 ］; Tag card ［ 31 ］ initiatively sends personnel's coded message to wireless location base station ［ 32 ］; Wireless location base station ［ 32 ］ sends information to network controller through the LonWorks control bus after receiving the information that tag card ［ 31 ］ sends; Network controller sends the data to ground control centre network ［ 12 ］ through Ethernet again, is shown to administrative staff in real time after ground control centre network ［ 12 ］ the collection and treatment information.
2. described based on ZigBee technology coal mine personnel positioning and management system according to right 1, it is characterized in that:
Personnel in the pit's fixer network ［ 11 ］: the some network controllers by the ring network form connects are formed; Each network controller connects several wireless location base stations ［ 32 ］; Adopt fiber optic Ethernet to be connected between network controller and the network controller, employing LonWorks control bus connects between wireless location base station ［ 32 ］; Network controller and downhole wireless locating base station ［ 32 ］, network controller and ground control centre network ［ 12 ］ carry out two-way communication respectively;
Ground control centre network ［ 12 ］: also comprise monitoring host computer, fire wall, Web server, database server and display screen, each monitoring host computer, monitoring host computer are connected with display screen with Web server, monitoring host computer with the mode of Ethernet; Ground control centre network ［ 12 ］ externally provides the access interface of enterprises lan and the access interface of safety of coal mines supervision department network.
3. described based on ZigBee technology coal mine personnel positioning and management system according to right 1; It is characterized in that: said digital sampling and processing ［ 21 ］ carries the data acquisition process running software on a database server; Gather in real time personnel positioning data go forward side by side row filter, impurity elimination, storage at last; Data query administration module ［ 22 ］ carries running software on Web server; Handle query requests and the supervisory instruction that monitoring host computer sends in real time; Propose query requests according to respective queries to data server, simultaneously, send instruction to the down-hole according to the instruction that monitoring host computer sends.
4. described based on ZigBee technology coal mine personnel positioning and management system according to right 1, it is characterized in that: the ZigBee wireless technology has been adopted in said wireless identification card ［ 31 ］ and wireless location base station ［ 32 ］; Adopt 2.4G ISM band radio communication between wireless location base station ［ 32 ］ and the wireless identification card ［ 31 ］, traffic rate adopts 250kbps; Wireless identification card ［ 31 ］ is in resting state at ordinary times; When wireless identification card ［ 31 ］ in the identification range of a certain wireless location base station and when being activated; Initiatively send personnel's coded message to wireless location base station ［ 32 ］; Transmission finishes and changes resting state over to, waits for the activation next time of wireless location base station ［ 32 ］; Wireless location base station ［ 32 ］ is made up of voltage-stabilized power supply, wireless transceiver, microprocessor, memory, antenna and other supplementary modules; Constantly send carrier signal through antenna; When having the wireless identification cartoon and cross near the base station; The tag card chip is promptly waken up, and the chip that is in resting state originally is activated and the coded message that will contain self is modulated on the carrier wave and launches through the card internal antenna, and the base station receives the information that tag card sends through wireless transceiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104542848A CN102418560A (en) | 2011-12-30 | 2011-12-30 | Coal mine worker positioning and managing system based on ZigBee technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104542848A CN102418560A (en) | 2011-12-30 | 2011-12-30 | Coal mine worker positioning and managing system based on ZigBee technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102418560A true CN102418560A (en) | 2012-04-18 |
Family
ID=45943180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104542848A Pending CN102418560A (en) | 2011-12-30 | 2011-12-30 | Coal mine worker positioning and managing system based on ZigBee technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102418560A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102685668A (en) * | 2012-05-08 | 2012-09-19 | 武汉数阵信息集成技术有限公司 | Wireless positioning and safety management system for engineering constructors |
| CN102705009A (en) * | 2012-05-22 | 2012-10-03 | 上海乾视通信技术有限公司 | Mine information system |
| CN103327007A (en) * | 2013-05-21 | 2013-09-25 | 中国石油天然气集团公司 | System and method for data transmission between underground and ground |
| CN107995592A (en) * | 2017-12-25 | 2018-05-04 | 苏州赛源微电子有限公司 | A kind of WIFI wireless telecommunications personnel positioning management system |
| CN109195108A (en) * | 2018-11-05 | 2019-01-11 | 郑州煤机液压电控有限公司 | Coal mine fully-mechanized mining working personnel's Precise Position System |
| CN110708659A (en) * | 2019-10-12 | 2020-01-17 | 山东爱拓软件开发有限公司 | Personnel positioning method and system suitable for mine path |
| CN111305903A (en) * | 2020-04-07 | 2020-06-19 | 攀钢集团矿业有限公司 | Underground mine early warning information contact signal device |
| CN113677001A (en) * | 2021-10-25 | 2021-11-19 | 山东开创电气有限公司 | UWB positioning precision device with automatic intelligent compensation function and method |
| CN115623415A (en) * | 2022-09-26 | 2023-01-17 | 凡尔智能科技集团有限公司 | Positioning method for coal mine personnel positioning based on low-frequency induction |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201718044U (en) * | 2010-07-27 | 2011-01-19 | 上海中为智能机器人有限公司 | Mine underground intelligent wireless monitoring and positioning system base station |
| US20110205033A1 (en) * | 2008-03-26 | 2011-08-25 | Lakshmi Kanta Bandyopadhyay | Wireless information and safety system for mines |
| CN201963357U (en) * | 2010-12-19 | 2011-09-07 | 西安迅腾科技有限责任公司 | Positioning system for underground personnel |
-
2011
- 2011-12-30 CN CN2011104542848A patent/CN102418560A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110205033A1 (en) * | 2008-03-26 | 2011-08-25 | Lakshmi Kanta Bandyopadhyay | Wireless information and safety system for mines |
| CN201718044U (en) * | 2010-07-27 | 2011-01-19 | 上海中为智能机器人有限公司 | Mine underground intelligent wireless monitoring and positioning system base station |
| CN201963357U (en) * | 2010-12-19 | 2011-09-07 | 西安迅腾科技有限责任公司 | Positioning system for underground personnel |
Non-Patent Citations (3)
| Title |
|---|
| 庞海娟: "ZigBee技术在矿井人员管理系统中的应用", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
| 杜富瑞等: "三山岛金矿人机定位系统设计", 《山东轻工业学院学报(自然科学版)》 * |
| 高安邦等: "《Lonworks技术原理与应用》", 1 June 2009, 机械工业出版社 * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102685668A (en) * | 2012-05-08 | 2012-09-19 | 武汉数阵信息集成技术有限公司 | Wireless positioning and safety management system for engineering constructors |
| CN102685668B (en) * | 2012-05-08 | 2015-04-22 | 武汉数阵信息集成技术有限公司 | Wireless positioning and safety management system for engineering constructors |
| CN102705009A (en) * | 2012-05-22 | 2012-10-03 | 上海乾视通信技术有限公司 | Mine information system |
| CN103327007A (en) * | 2013-05-21 | 2013-09-25 | 中国石油天然气集团公司 | System and method for data transmission between underground and ground |
| CN103327007B (en) * | 2013-05-21 | 2017-08-04 | 中国石油天然气集团公司 | Underground and the data transmission system and method on ground |
| CN107995592A (en) * | 2017-12-25 | 2018-05-04 | 苏州赛源微电子有限公司 | A kind of WIFI wireless telecommunications personnel positioning management system |
| CN109195108A (en) * | 2018-11-05 | 2019-01-11 | 郑州煤机液压电控有限公司 | Coal mine fully-mechanized mining working personnel's Precise Position System |
| CN110708659A (en) * | 2019-10-12 | 2020-01-17 | 山东爱拓软件开发有限公司 | Personnel positioning method and system suitable for mine path |
| CN110708659B (en) * | 2019-10-12 | 2021-05-25 | 山东爱拓软件开发有限公司 | Personnel positioning method and system suitable for mine path |
| CN111305903A (en) * | 2020-04-07 | 2020-06-19 | 攀钢集团矿业有限公司 | Underground mine early warning information contact signal device |
| CN113677001A (en) * | 2021-10-25 | 2021-11-19 | 山东开创电气有限公司 | UWB positioning precision device with automatic intelligent compensation function and method |
| CN113677001B (en) * | 2021-10-25 | 2022-02-08 | 山东开创电气有限公司 | UWB positioning precision device with automatic intelligent compensation function and method |
| CN115623415A (en) * | 2022-09-26 | 2023-01-17 | 凡尔智能科技集团有限公司 | Positioning method for coal mine personnel positioning based on low-frequency induction |
| CN115623415B (en) * | 2022-09-26 | 2023-03-28 | 凡尔智能科技集团有限公司 | Positioning method for coal mine personnel positioning based on low-frequency induction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102418560A (en) | Coal mine worker positioning and managing system based on ZigBee technology | |
| CN108769921B (en) | Mine positioning system and method based on fusion of LoRa region and accurate positioning | |
| CN206132978U (en) | Office building personnel positioning system based on bluetooth | |
| CN103726881B (en) | Safety of coal mines hidden danger signal acquiring processing system and method | |
| CN107146168A (en) | Wisdom building site management system based on universe frequency conversion positioning Yu self-identifying technology | |
| CN203734843U (en) | Coal-mine worker positioning system | |
| CN102201075A (en) | Mineral logistic comprehensive management system | |
| CN103294975A (en) | Method and system for managing intelligent patrolling and personnel positioning | |
| CN103016060A (en) | Mining safety monitoring system | |
| CN103790631A (en) | Mine 3G communication positioning comprehensive management system | |
| CN202832657U (en) | Coal miner positioning and management system based on ZigBee technology | |
| CN101222399A (en) | Down-hole monitoring system and method thereof | |
| CN103294011A (en) | Mine vehicle scheduling control system | |
| CN104314615A (en) | Mine safety monitoring system | |
| CN202493290U (en) | Personnel management system for mine | |
| CN213906946U (en) | Mine personnel real-time positioning and attendance checking system based on Wi-Fi technology | |
| CN209088630U (en) | Personnel positioning and asset of equipments are made an inventory device online under a kind of high voltage environment | |
| CN202544928U (en) | Position monitoring and management system of underground staffs | |
| CN103297916A (en) | Wireless remote intelligent locomotive positioning system and alarm apparatus | |
| CN103308881A (en) | Wireless positioning system and beacon card | |
| CN113068115A (en) | Thermal power plant worker positioning system and method based on positioning tags | |
| CN112734257A (en) | System for unmanned aerial vehicle personnel supervision on blasting construction site and use method | |
| CN202310116U (en) | Mining wireless positioning system | |
| CN208402134U (en) | The mine positioning system that region and accurate positioning based on LoRa blend | |
| CN217278886U (en) | Coal mine personnel positioning system based on RFID |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120418 |