CN103593943A - Dangerous area human behavior identification and monitoring system based on position and multidimensional information integration - Google Patents
Dangerous area human behavior identification and monitoring system based on position and multidimensional information integration Download PDFInfo
- Publication number
- CN103593943A CN103593943A CN201310365254.9A CN201310365254A CN103593943A CN 103593943 A CN103593943 A CN 103593943A CN 201310365254 A CN201310365254 A CN 201310365254A CN 103593943 A CN103593943 A CN 103593943A
- Authority
- CN
- China
- Prior art keywords
- intelligent terminal
- base station
- wireless base
- information
- hazardous location
- 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
Landscapes
- Telephonic Communication Services (AREA)
- Alarm Systems (AREA)
Abstract
The invention discloses a dangerous area human behavior identification and monitoring system based on position and multidimensional information integration. The system comprises an intelligent terminal, wireless base stations, switches and monitoring hosts, wherein the monitoring hosts are connected with the wireless base stations through the switches, the wireless base stations are connected with the intelligent terminal, and a wireless sensing network is formed through the wireless base stations, the intelligent terminal, and the like. The system is advantaged in that multidimensional information sensing capability is realized, multidimensional information integration and behavior identification capability are realized, symmetrical double side bidirectional distance measurement is employed, human or equipment positions are determined in real time, positioning precision is high, anti-interference capability is strong, and human monitoring is carried out in real time through information interaction.
Description
Technical field:
The invention belongs to wireless communication field, relate to the human behavior identification of a kind of hazardous location and supervisory system, hazardous location human behavior identification and the supervisory system of especially a kind of position-based and multidimensional information fusion.
Background technology:
In prior art, the information system management mode of hazardous location personnel, equipment is all weak, and is mainly manifested in the following aspects:
1. without multidimensional information fusion technology,
Majority only has simple positioning function, and for information unaware abilities such as attitudes, comprehensively multidimensional information is supported management of safe operation.
2. without behavior, identify,
Cannot to personnel's behavior, identify by analyzing multidimensional information, cannot manage unsafe acts
3. positioning precision is poor
Existing personnel in the pit's locator meams mainly contains RFID, ZIGBEE etc.For rfid system, monitoring range little (10 meters-20 meters), can not accurately locate, can not continuous monitoring.For ZIGBEE system, mainly adopt field intensity locator meams, poor anti jamming capability, under positioning precision ideal state, > is 5 meters, and reality is often used 10 meters of >.
Summary of the invention:
The object of the invention is to overcome the shortcoming of above-mentioned prior art, hazardous location human behavior identification and the supervisory system of a kind of position-based and multidimensional information fusion is provided.
The object of the invention is to solve by the following technical programs:
Hazardous location human behavior identification and the supervisory system of a kind of position-based and multidimensional information fusion, comprise intelligent terminal, wireless base station, switch and monitoring host computer, monitoring host computer is connected with wireless base station by switch, on wireless base station, be connected with intelligent terminal, by wireless base station, intelligent terminal etc., form wireless sense network.
Described wireless base station has wireless communication capability, carries out both-way communication with the intelligent terminal within the scope of base station monitors, finds range, information interaction; Meanwhile, wireless base station is with fiber optic Ethernet interface, and many stylobates station links to switch, then between the communication network of setting up by switch and Surveillance center, carries out communication and be connected, by the uploading information data of intelligent terminal to center monitoring main frame.
Described monitoring host computer will be saved in Computer Database by the whole intelligent terminal information and the temporal information that receive, monitoring host computer is by whole intelligent terminal information and temporal information, the position coordinates of every wireless base station and the true 3D map of hazardous location, the physical location of calculative determination intelligent terminal, and be presented on monitoring large-size screen monitors; User is by consulting the intelligent terminal information of preserving in computing machine, with playback personnel route, track; Monitoring software adopts multidimensional information fusion technology, comprehensive all information, and staff's behavior in automatic analysis hazardous location, to the hidden danger of accident and unsafe acts automatic alarm, prompting monitor staff takes corresponding measure; Monitor staff is in needs are called out hazardous location during staff, by monitoring host computer, information is sent to specific radio base station by switch, communication line, the intelligent terminal that finally sends to target person to carry information, intelligent terminal receives after call information, light emitting diode is glittering, and showing the corresponding word of screen display, to carrier, send prompting.
Described intelligent terminal has alarm button, when carrier finds that there is accident, equipment failure, can report to the police by alarm button, and send corresponding problem content by note, so that aboveground monitor staff understands down-hole situation in time, sends rapidly correct dispatch command.
Described intelligent terminal, by lithium battery power supply, has the CPU of ARMCortex, in the scope covering, moves freely in wireless base station signal, transmits and receives radiofrequency signal, the distance between measurement and wireless base station, and distance results is issued to wireless base station around; Meanwhile, intelligent terminal also has multiple sensors and OLED display screen.
Described multiple sensors comprises acceleration transducer, gas sensor and temperature sensor; Acceleration transducer, for according to accekeration, carrier's attitude being judged, the effect of automatic alarm when carrier is impacted or falls down, acceleration change situation analysis human behavior that can be different according to all directions; Gas sensor, for detection of harmful gas concentration; Temperature sensor, for sense ambient temperature.
Described wireless base station is arranged in hazardous location, by a plurality of wireless base stations, intelligent terminal etc., forms wireless sense network, and wireless base station can communicate location by the intelligent terminal automatically and in signal cover, and data are mail to Surveillance center in real time; Wireless base station has power supply indication, communication, alarm indication function.
Beneficial effect of the present invention is:
1. multidimensional information perception:
Intelligent terminal has the perceptional function that comprises the multidimensional information such as position, and simultaneity factor has the information-based interface with other system, can, by information access native systems such as environment, equipment, geology, can carry out multidimensional information perception.
2. multidimensional information fusion carries out behavior identification:
System is when automatically monitoring the information such as the position of each intelligent terminal, attitude, the information such as monitoring of environmental, equipment, geology, comprehensive multidimensional information, human behavior is identified, and the intelligent decision of carrying out robotization, monitoring unsafe acts in real time, realize various abnormal conditions and the automatic automatic alarm of safe sequel, guarantee safety.
3. adopt symmetrical bilateral bidirectional ranging (SDS-TWR) range finding:
By twice measurement radiowave time of transmission mutually between base station and intelligent terminal, the distance between calculation base station and intelligent terminal, thus determine in real time the position of personnel or equipment, positioning precision is high, and antijamming capability is strong.Avoid the time synchronized between two equipment, also can eliminate two clock jitters between equipment.
4. by information interaction, carry out real-time personnel control:
Between intelligent terminal and Surveillance center, can carry out bidirectional information communication, method is by wireless signal, to connect between intelligent terminal and wireless base station, between wireless base station and Surveillance center, adopts Ethernet to be connected.By information interaction, upload in time or issue various information as job placement, dispatch command etc., effectively monitor.
Accompanying drawing explanation:
Fig. 1 is structural representation of the present invention;
Wherein: 1 is monitoring host computer; 2 is switch; 3 is wireless base station; 4 is intelligent terminal.
Embodiment:
Below in conjunction with accompanying drawing, the present invention is described in further detail:
Referring to Fig. 1, system is comprised of intelligent terminal, wireless base station, switch, monitoring host computer etc.
In hazardous location, set up and cover region-wide communication network.Every stylobate station all has wireless communication capability, and the label that can wear with staff within the scope of base station monitors carries out both-way communication, finds range, the work such as information interaction.Meanwhile, base station is with fiber optic Ethernet interface, and many stylobates station links to switch, then between the communication network of setting up by switch and Surveillance center, carries out communication and be connected, by the uploading information data of intelligent terminal to center monitoring main frame.
Monitoring host computer will be saved in Computer Database by the whole intelligent terminal information and the temporal information that receive, and the time span of save data can be determined by system manager.Monitoring host computer is by whole intelligent terminal information and temporal information, the position coordinates at every stylobate station and the true 3D map of hazardous location, the physical location of calculative determination label, and be presented on monitoring large-size screen monitors.User can consult the label information of preserving in computing machine, with playback personnel route, track etc.Monitoring software adopts multidimensional information fusion technology, can various information, and staff's behavior automatic analysis hazardous location in, to the hidden danger likely causing the accident and unsafe acts automatic alarm, points out monitor staff to take corresponding measure.
Monitor staff during staff, sends to specific base by information by switch, communication line by monitoring host computer, the intelligent terminal that finally sends to target person to carry information in needs are called out hazardous location.Intelligent terminal receives after call information, and red light emitting diodes is glittering, and at the corresponding word of little screen display, to carrier, sends prompting.
Intelligent terminal has alarm button, while finding that there is the problems such as accident, equipment failure carrier, can report to the police by alarm button, and send corresponding problem content by note, so that aboveground monitor staff understands down-hole situation in time, sends rapidly correct dispatch command.
Intelligent terminal, by lithium battery power supply, has the CPU of ARMCortex, in the scope covering, moves freely in wireless base station signal, transmits and receives radiofrequency signal, the distance between measurement and wireless base station, and distance results is issued to wireless base station around.Simultaneously, intelligent terminal also has multiple sensors, as acceleration transducer, can to carrier's attitude, be judged according to accekeration, the effect of automatic alarm when carrier is impacted or falls down, acceleration change situation analysis human behavior that can be different according to all directions; Gas sensor, can detect the harmful gas concentrations such as gas; Temperature sensor; Sense ambient temperature.In addition, intelligent terminal also has OLED display screen.Can with monitor staff's two-way communication, transmitting-receiving note, play the effects such as warning, scheduling.
Wireless base station is arranged in hazardous location, by a plurality of wireless base stations, jointly forms wireless network, can communicate location by the label automatically and in signal cover, and data are mail to Surveillance center in real time.Base station has power supply indication, communication, alarm indication function.
Accurate positioning method and system (application number/patent No.: the technical scheme of mentioning 201210066499) is to take Zigbee as communication and a distance measuring method, itself and difference of the present invention are:
1.Zigbee is arrowband communication, bandwidth is only 250kbps (2.4GHz), and that the present invention's employing is CSS, communication bandwidth can reach 2Mbps, and in actual use, native system, except positioning function, also needs transmission environment, equipment, personnel's various information, consider that the personnel that go into the well and equipment are numerous, need increased bandwidth to meet the demands.
A little less than 2.Zigbee antijamming capability, Zigbee system adopts DSSS (straight sequence spread spectrum) modulation, spectral density is relatively high, be easy to be subject to the interference that the external world applies, and CSS (linear frequency modulation spread spectrum) has adopted the bandwidth of 80M, belong to broadband system, have lower frequency density, anti-frequency shift capabilities is strong, long transmission distance, radio-frequency power consumption is low, and anti-multipath interference performance is strong.
3.Zigbee localization method is to measure the transmission time of electrical measurement ripple between positioning master station and locator card, need main website and locator card precise synchronization time, in fact be difficult to accomplish, so positioning precision is poor, and the present invention has adopted symmetrical bilateral bidirectional ranging (SDS-TWR) method, avoid the time synchronized between two equipment, also can eliminate two clock jitters between equipment.
Above content is in conjunction with concrete preferred implementation further description made for the present invention; can not assert that the specific embodiment of the present invention only limits to this; for general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; can also make some simple deduction or replace, all should be considered as belonging to the present invention and determine scope of patent protection by submitted to claims.
Claims (7)
1. hazardous location human behavior identification and the supervisory system of a position-based and multidimensional information fusion, it is characterized in that: comprise intelligent terminal, wireless base station, switch and monitoring host computer, monitoring host computer is connected with wireless base station by switch, is connected with intelligent terminal on wireless base station.
2. hazardous location as claimed in claim 1 human behavior identification and supervisory system, is characterized in that: described wireless base station has wireless communication capability, carries out both-way communication with the intelligent terminal within the scope of base station monitors, finds range, information interaction; Meanwhile, wireless base station is with fiber optic Ethernet interface, and many stylobates station links to switch, then between the communication network of setting up by switch and Surveillance center, carries out communication and be connected, by the uploading information data of intelligent terminal to center monitoring main frame.
3. hazardous location as claimed in claim 1 human behavior is identified and supervisory system, it is characterized in that: described monitoring host computer will be saved in Computer Database by the whole intelligent terminal information and the temporal information that receive, monitoring host computer is by whole intelligent terminal information and temporal information, the position coordinates of every wireless base station and the true 3D map of hazardous location, the physical location of calculative determination intelligent terminal, and be presented on monitoring large-size screen monitors; User is by consulting the intelligent terminal information of preserving in computing machine, with playback personnel route, track; Monitoring software adopts multidimensional information fusion technology, comprehensive all information, and staff's behavior in automatic analysis hazardous location, to the hidden danger of accident and unsafe acts automatic alarm, prompting monitor staff takes corresponding measure; Monitor staff is in needs are called out hazardous location during staff, by monitoring host computer, information is sent to specific radio base station by switch, communication line, the intelligent terminal that finally sends to target person to carry information, intelligent terminal receives after call information, light emitting diode is glittering, and showing the corresponding word of screen display, to carrier, send prompting.
4. hazardous location as claimed in claim 3 human behavior is identified and supervisory system, it is characterized in that: described intelligent terminal has alarm button, when carrier finds that there is accident, equipment failure, can report to the police by alarm button, and send corresponding problem content by note, so that aboveground monitor staff understands down-hole situation in time, send rapidly correct dispatch command.
5. hazardous location as claimed in claim 3 human behavior is identified and supervisory system, it is characterized in that: described intelligent terminal has CPU, in the scope covering in wireless base station signal, move freely, transmit and receive radiofrequency signal, distance between measurement and wireless base station, and distance results is issued to wireless base station around; Meanwhile, intelligent terminal also has multiple sensors and display screen.
6. the identification of hazardous location as claimed in claim 5 human behavior and supervisory system, is characterized in that: described multiple sensors comprises acceleration transducer, gas sensor and temperature sensor; Acceleration transducer, for according to accekeration, carrier's attitude being judged, the effect of automatic alarm when carrier is impacted or falls down, acceleration change situation analysis human behavior that can be different according to all directions; Gas sensor, for detection of harmful gas concentration; Temperature sensor, for sense ambient temperature.
7. hazardous location as claimed in claim 1 human behavior is identified and supervisory system, it is characterized in that: described wireless base station is arranged in hazardous location, by a plurality of wireless base stations, intelligent terminal, jointly form wireless sense network, wireless base station can communicate location by the intelligent terminal automatically and in signal cover, and data are mail to Surveillance center in real time; Wireless base station has power supply indication, communication, alarm indication function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310365254.9A CN103593943A (en) | 2013-08-20 | 2013-08-20 | Dangerous area human behavior identification and monitoring system based on position and multidimensional information integration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310365254.9A CN103593943A (en) | 2013-08-20 | 2013-08-20 | Dangerous area human behavior identification and monitoring system based on position and multidimensional information integration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103593943A true CN103593943A (en) | 2014-02-19 |
Family
ID=50084057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310365254.9A Pending CN103593943A (en) | 2013-08-20 | 2013-08-20 | Dangerous area human behavior identification and monitoring system based on position and multidimensional information integration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103593943A (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104202720A (en) * | 2014-08-19 | 2014-12-10 | 惠州Tcl移动通信有限公司 | Method and system for realizing position monitoring alarm |
| CN104295319A (en) * | 2014-10-13 | 2015-01-21 | 志勤高科(北京)技术有限公司 | Nuclear power station worker positioning card |
| CN105003301A (en) * | 2015-06-04 | 2015-10-28 | 中国矿业大学 | Apparatus and system for detecting dangerous postures of worker on fully mechanized coal face |
| CN105225410A (en) * | 2015-08-31 | 2016-01-06 | 国网山东省电力公司淄博供电公司 | Distribution line is close to method for early warning and equipment |
| CN105764049A (en) * | 2014-12-15 | 2016-07-13 | 镇江市星禾物联科技有限公司 | Internet-of-thing performance real-time detection method |
| CN105764071A (en) * | 2014-12-18 | 2016-07-13 | 镇江坤泉电子科技有限公司 | Data service perception system based on Internet of things |
| CN105844854A (en) * | 2016-05-31 | 2016-08-10 | 国网江西省电力公司南昌供电分公司 | Warning indicator used in maintenance operation |
| CN106403946A (en) * | 2016-12-12 | 2017-02-15 | 北京华源热力管网有限公司 | Intelligent micro inertial navigation three-dimensional positioning system for heat supply network operation inspection personnel |
| CN106600898A (en) * | 2017-01-17 | 2017-04-26 | 腾讯数码（天津）有限公司 | Safety early warning method, device and terminal |
| CN107645650A (en) * | 2017-09-30 | 2018-01-30 | 中国联合网络通信集团有限公司 | Security protection area monitoring method and security protection regional monitoring system |
| CN108737627A (en) * | 2017-04-18 | 2018-11-02 | 江苏北弓智能科技有限公司 | One kind being based on smart mobile phone usage behavior monitoring warning system and method |
| CN110248317A (en) * | 2019-05-31 | 2019-09-17 | 煤科集团沈阳研究院有限公司 | A kind of mining intelligent safety vest and down-hole multilevel emergency advance warning processing method |
| CN111722565A (en) * | 2020-06-22 | 2020-09-29 | 山东盛隆安全技术有限公司 | Automatic control technology for accurate personnel positioning base station |
| CN113111080A (en) * | 2021-04-07 | 2021-07-13 | 杭州显宏信息工程咨询有限公司 | Communication engineering supervision system based on multi-dimensional information fusion and intelligent analysis |
| CN114255570A (en) * | 2022-01-27 | 2022-03-29 | 新拓尼克科技(成都)有限公司 | Software and hardware system for interval positioning alarm |
| WO2024141085A1 (en) * | 2022-12-30 | 2024-07-04 | 汉熵通信有限公司 | Rescue system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002027121A (en) * | 2000-07-13 | 2002-01-25 | Pioneer Electronic Corp | Information distribution system by portable information terminal |
| CN102789217A (en) * | 2012-07-20 | 2012-11-21 | 艾沃瑞克（北京）科技有限公司 | Remote monitoring safety guarantee system |
| CN102802173A (en) * | 2012-08-06 | 2012-11-28 | 中国矿业大学(北京) | System for underground communication and staff monitoring based on TD-LTE technology |
| CN202832661U (en) * | 2012-08-28 | 2013-03-27 | 江苏中矿创慧信息科技股份有限公司 | Underground personnel location system based on four-dimensional (4D) display |
| CN103244188A (en) * | 2013-05-14 | 2013-08-14 | 太原科技大学 | Coal mine underground integrated monitoring and controlling system based on internet of things technology |
-
2013
- 2013-08-20 CN CN201310365254.9A patent/CN103593943A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002027121A (en) * | 2000-07-13 | 2002-01-25 | Pioneer Electronic Corp | Information distribution system by portable information terminal |
| CN102789217A (en) * | 2012-07-20 | 2012-11-21 | 艾沃瑞克（北京）科技有限公司 | Remote monitoring safety guarantee system |
| CN102802173A (en) * | 2012-08-06 | 2012-11-28 | 中国矿业大学(北京) | System for underground communication and staff monitoring based on TD-LTE technology |
| CN202832661U (en) * | 2012-08-28 | 2013-03-27 | 江苏中矿创慧信息科技股份有限公司 | Underground personnel location system based on four-dimensional (4D) display |
| CN103244188A (en) * | 2013-05-14 | 2013-08-14 | 太原科技大学 | Coal mine underground integrated monitoring and controlling system based on internet of things technology |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104202720A (en) * | 2014-08-19 | 2014-12-10 | 惠州Tcl移动通信有限公司 | Method and system for realizing position monitoring alarm |
| CN104295319A (en) * | 2014-10-13 | 2015-01-21 | 志勤高科(北京)技术有限公司 | Nuclear power station worker positioning card |
| CN105764049A (en) * | 2014-12-15 | 2016-07-13 | 镇江市星禾物联科技有限公司 | Internet-of-thing performance real-time detection method |
| CN105764071A (en) * | 2014-12-18 | 2016-07-13 | 镇江坤泉电子科技有限公司 | Data service perception system based on Internet of things |
| CN105003301A (en) * | 2015-06-04 | 2015-10-28 | 中国矿业大学 | Apparatus and system for detecting dangerous postures of worker on fully mechanized coal face |
| CN105225410A (en) * | 2015-08-31 | 2016-01-06 | 国网山东省电力公司淄博供电公司 | Distribution line is close to method for early warning and equipment |
| CN105844854A (en) * | 2016-05-31 | 2016-08-10 | 国网江西省电力公司南昌供电分公司 | Warning indicator used in maintenance operation |
| CN106403946A (en) * | 2016-12-12 | 2017-02-15 | 北京华源热力管网有限公司 | Intelligent micro inertial navigation three-dimensional positioning system for heat supply network operation inspection personnel |
| CN106600898A (en) * | 2017-01-17 | 2017-04-26 | 腾讯数码（天津）有限公司 | Safety early warning method, device and terminal |
| CN108737627A (en) * | 2017-04-18 | 2018-11-02 | 江苏北弓智能科技有限公司 | One kind being based on smart mobile phone usage behavior monitoring warning system and method |
| CN107645650A (en) * | 2017-09-30 | 2018-01-30 | 中国联合网络通信集团有限公司 | Security protection area monitoring method and security protection regional monitoring system |
| CN107645650B (en) * | 2017-09-30 | 2020-06-26 | 中国联合网络通信集团有限公司 | Security area monitoring method and security area monitoring system |
| CN110248317A (en) * | 2019-05-31 | 2019-09-17 | 煤科集团沈阳研究院有限公司 | A kind of mining intelligent safety vest and down-hole multilevel emergency advance warning processing method |
| CN111722565A (en) * | 2020-06-22 | 2020-09-29 | 山东盛隆安全技术有限公司 | Automatic control technology for accurate personnel positioning base station |
| CN113111080A (en) * | 2021-04-07 | 2021-07-13 | 杭州显宏信息工程咨询有限公司 | Communication engineering supervision system based on multi-dimensional information fusion and intelligent analysis |
| CN114255570A (en) * | 2022-01-27 | 2022-03-29 | 新拓尼克科技(成都)有限公司 | Software and hardware system for interval positioning alarm |
| WO2024141085A1 (en) * | 2022-12-30 | 2024-07-04 | 汉熵通信有限公司 | Rescue system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103593943A (en) | Dangerous area human behavior identification and monitoring system based on position and multidimensional information integration | |
| CN108303673B (en) | UWB three-dimensional positioning system based on video auxiliary positioning | |
| CN102307386B (en) | Indoor positioning monitoring system and method based on Zigbee wireless network | |
| CN112423225B (en) | UWB technology-based method for positioning target object in railway passenger station | |
| CN102523621B (en) | A kind of Mine Personnel Positioning System and method | |
| CN108769918A (en) | A kind of upper and lower personnel positioning navigation system of the accurate recovery well in deep of combination Internet of Things | |
| CN204680162U (en) | Wearable toxic gas safe early warning equipment | |
| CN110068791A (en) | Indoor locating system based on array antenna | |
| CN103957508A (en) | Accurate underground wireless positioning system and method based on combination of WiFi and gyroscope | |
| CN104155670A (en) | Battle tracking system and method aiming at firefighters at fire scene | |
| CN205787094U (en) | Underground coal mine precise positioning system based on ultra broadband | |
| CN104715618B (en) | A kind of downhole intelligent traffic light control system and method | |
| CN114221998B (en) | Lighting and positioning control method based on UWB intelligent lamp | |
| CN102625238A (en) | Precise positioning method and system for mine | |
| CN202818621U (en) | Underground positioning system using TOF technology principle based on Zigbee | |
| CN205117409U (en) | Intelligence colliery environmental monitoring system based on zigBee technique | |
| CN203894797U (en) | Inspection device and inspection system for railway power supply equipment | |
| CN108921759A (en) | Scene positioning system and method and Portable signal terminal in building | |
| CN113660603A (en) | Positioning system architecture and positioning method based on UWB technology | |
| CN104832214A (en) | Novel passive coal mine underground environment safety monitoring system | |
| CN106158312B (en) | A kind of 800kVA intelligent transformer below | |
| CN202937308U (en) | Mine personnel location and monitoring system | |
| CN203321590U (en) | Movable underground mine information monitoring and personnel positioning device | |
| Zhang et al. | Development of shipbuilding safety information monitoring and management system | |
| CN103595955A (en) | GIS-based holder control airport monitoring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140219 |
|
| RJ01 | Rejection of invention patent application after publication |