CN204014085U - Underground operators high-accuracy position system - Google Patents
Underground operators high-accuracy position system Download PDFInfo
- Publication number
- CN204014085U CN204014085U CN201420246354.XU CN201420246354U CN204014085U CN 204014085 U CN204014085 U CN 204014085U CN 201420246354 U CN201420246354 U CN 201420246354U CN 204014085 U CN204014085 U CN 204014085U
- Authority
- CN
- China
- Prior art keywords
- location
- substation
- server
- signal
- real
- 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 - Lifetime
Links
- 238000012544 monitoring process Methods 0.000 claims description 11
- 238000005259 measurement Methods 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 claims description 6
- 230000000052 comparative effect Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 238000011161 development Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 abstract description 3
- 238000007726 management method Methods 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 6
- 239000003245 coal Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000001413 cellular effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 230000004807 localization Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 206010048669 Terminal state Diseases 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The utility model discloses a kind of underground operators high-accuracy position system, comprise the sniffer in ground location-server and underworkings, location-server is provided with location database, sniffer comprises a plurality of location AP substation, in location database, preserve in advance the demarcation characteristic parameter of each grid point on underworkings space lattice, the locating terminal that underground operators is worn sends the detectable signal of the ID that contains this locating terminal in real time, location AP substation in range of receiving is received after detectable signal, obtain the real-time characteristic parameter of detectable signal and send to location-server, on location-server, according to the comparison result of the demarcation characteristic parameter of each grid point in real-time characteristic parameter and location database, obtain the accurate location of locating terminal in underworkings.The utility model, has shielded electromagnetic wave head completely and has reached the error that footpath extraction brings, and has got rid of the impact of complex electromagnetic environment, has improved the positioning precision of underground operators.
Description
Technical field
The utility model positioner, is specifically related to underground operators high-accuracy position system.
Background technology
The security incident of pit mining industry takes place frequently, therefore, the safe pay attention to day by day of country to coal mine underground operators, supervision is constantly strengthened, and in succession puts into effect multinomial rule of management.As: the tenth requirement of < < safety regulations in coal mine > >: coal mining enterprise must set up into well detection system and the well personnel that come in and go out and check system; < < coal mine downhole safety hedging " six large systems " construction is improved basic demand and is inspected for acceptance the 17 requirement of Tentative Measures > >: all well personnel of entering must carry identification card; AQ6210-2007 and AQ1048-2007 < < coal mine underground operators management system use with management regulation > > in require: each personnel well head of coming in and going out should arrange the device that whether check identification card normal and uniqueness detects, and points out and take card personnel and related personnel.Its main purpose is: effectively carry out miner's management, contain overcrowding production, guarantee rescue and relief work, safety first-aid.
The basis that miner is carried out to effectively manage is the accurate location of underground operators.Conventional localization method mainly contains three kinds at present:
(1) navigation system based on REID (RFID, Radio Frequency Identification), this navigation system application is more extensive, but has following problems:
Positioning precision is limited by read write line distribution density, can only locate feasible region, does not accomplish dynamically real-time accurate location, once mine disaster occurs, cannot locate accurately the particular location at mine disaster personnel place;
Because RFID can only locate feasible region, cannot detect the situations that a people carries many cards, be not easy to ore deposit leader to personnel's work attendance and management;
Limited by RFID read or write speed, can not process many people simultaneously fast by the situation of card-reading system, be prone to skip.
(2) based on the navigation system based on cell ID (Cell ID) in cellular radio, it is the position that the ID of cellular cell estimates object to be positioned place that this navigation system is utilized the serving BS at object to be positioned place, the IDShi whole world, cellular network Zhong community is unique, and the position at object to be positioned place is mainly determined by the ID of cellular cell and cell coverage area.It is simple that Cell ID realizes principle, without locating terminal, change, also without measuring complicated signal characteristic value, only need network side to do slight improvement, increase positioning flow, it is the simplest method in current wireless location technology, only need about 3 seconds positioning time, but this technology is come the position of consumer positioning by the community at identification user place, and positioning precision is often in radius of society quantity rank, about 200 to 300 meters of left and right scopes, positioning precision is very low.But due to the particular surroundings of underworkings, as wireless signal multipath transmisstion, signal fadeout is large, be difficult to line-of-sight propagation, so this technology is not suitable for accurately locating under coal mine.
(3) based on received signal strength (RSSI, Received Signal StrengthIndication) navigation system, be the main localization method of current Zigbee and WiFi network using, it calculates the distance between mobile node and transmission substation according to the propagation loss type of wireless signal.The signal strength signal intensity that mobile node receives changes along with the change of distance of Distance Transmission substation, be that mobile node is nearer with transmission substation distance, the signal strength signal intensity receiving is stronger, otherwise mobile node is far away apart from transmission substation, the signal strength signal intensity receiving is more weak, RSSI localization method is to utilize this characteristic, the signal strength signal intensity recording is converted to apart from discreet value, then will compares apart from discreet value and signal strength signal intensity map, then determine final positioning result after filtering.RSSI localization method is simple and easy to implement.But the propagation loss model of wireless signal is affected by environment very large, so general RSSI navigation system often must rely on the density that increases transmission substation, and control the position error in one direction by global optimization approach, but the wire environment that subsurface environment multidimensional tunnel forms, cannot obtain the field intensity data of other directions in plane, so exist in tunnel while affecting the factor of transmission of wireless signals as Kia such as larger metal shelters, position error is larger.
In addition, the roadway road of mine is long and narrow, closed communication port, and due to the existence of the reasons such as dust, humidity, electromagnetic interference, communication condition is more severe, is mainly manifested in these points: first, multipath effect is serious.Multipath transmisstion can cause time delay expansion, signal phase skew and frequency expansion; Secondly, obstructed path is propagated for signal strength signal intensity impact very large.After the air line distance between travelling carriage and receiver is blocked, only have refraction and reflection path to reach receiving terminal, the signal strength signal intensity RSSI that reception place obtains can be weakened, and has further increased the error of measured value, has reduced the positioning precision of system.
Utility model content
Technical problem to be solved in the utility model is the problem of down-hole operating personnel Positioning System.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is to provide a kind of high-precision mine real-time positioning system, comprises and is arranged on ground location-server and is arranged on the sniffer in underworkings;
Described location-server is provided with location database and comparison module, and described sniffer comprises a plurality of location AP substation, and described location AP substation is connected to described location-server by explosion-proof optical switch; In described location database, preserve in advance the demarcation characteristic parameter of each grid point on underworkings coffin grid, described demarcation characteristic parameter is the amplitude that sets in advance the demarcation signal that this received wireless transmitter module of location AP substation in the range of receiving of the wireless launcher in respective grid points sends, arrives angle and Signal to Interference plus Noise Ratio and interference strength;
Described in each, locate and on AP substation, be equipped with wireless receiving module and measurement module, the locating terminal that underground operators is worn is provided with wireless transmitter module, locating terminal sends the detectable signal of the ID that contains this locating terminal in real time by described wireless transmitter module, location AP substation in range of receiving is received after detectable signal, by the measurement module on it, obtain the real-time characteristic parameter of received detectable signal and send to location-server, described real-time characteristic parameter comprises the amplitude of the detectable signal that each location AP substation is received, arrive angle, Signal to Interference plus Noise Ratio and interference strength.
Comparison module on location-server, according to the comparison result of the demarcation characteristic parameter of each grid point in real-time characteristic parameter and location database, obtains the accurate location of locating terminal in underworkings.
In said system, all location AP substation is divided into many groups, a plurality of location AP substation in every group is connected on the network interface of an optical-electrical converter by netting twine respectively, and the light delivery outlet of described optical-electrical converter is connected on described location-server by described explosion-proof optical switch.
In said system, also comprise locator data real-time extension device, described locator data real-time extension device comprises follows the synchronization-moving support of down-hole development machine, described support is provided with the node matching with lane space grid point longitudinal cross-section, an extended wireless transmitter module is installed on each node, described in each, extended wireless transmitter module is with face synchronizing moving, and at corresponding driving position transmitting spread signal, the ID that includes respective extension wireless transmitter module in this spread signal, location AP substation in range of receiving is sent to described location-server by the extension feature parameter of spread signal and adds to and in location database, creates new grid point, described extension feature parameter comprises the amplitude of received spread signal, arrive angle, signal to noise ratio and interference strength, the coordinate of new grid point is by the location positioning of driving position and extended wireless transmitter module.
In said system, on the AP substation of described location, be also provided with for detection of the network monitoring module of network break-make with for preserving the memory of the real-time characteristic parameter of detectable signal.
In said system, also comprise and be arranged on ground monitor workstation, described terminal is provided with for sending the warning button of alarm signal, described substation real-time monitoring alarming signal, and send described monitor workstation to.
In said system, described monitor workstation produces overcrowding warning according to the quantity of terminal in certain region and the comparative result of specified quantity.
In said system, described monitor workstation produces a people according to the comparative result of the distance between adjacent two terminals and set point and is with many cards to report to the police.
In said system, described monitor workstation Real-Time Monitoring is located the operating state of AP substation described in each, when certain substation breaks down, produces and reports to the police.
The utility model, location-server is provided with location database, in location database, preserve in advance the demarcation characteristic parameter of each grid point on underworkings space lattice, the detectable signal that location AP substation reception locating terminal sends obtains its real-time characteristic parameter and sends to location-server, location-server is according to the comparison result of the demarcation characteristic parameter of each grid point in real-time characteristic parameter and location database, obtain the accurate location of locating terminal in underworkings, shield electromagnetic wave head completely and reached the error that footpath extraction brings, got rid of the impact of underworkings complex electromagnetic environment, greatly improved the positioning precision of underground operators.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
The utility model provides a kind of underground operators high-accuracy position system, by being carried out to grid type space identification, underworkings sets up location database, near and utilize and in tunnel, respectively locate the detectable signal that locating terminal that AP substation receives in real time sends, and compare with location database, thereby realize the accurate location of underground operators, shield electromagnetic wave head completely and reached the error that footpath extraction brings, get rid of the impact of underworkings complex electromagnetic environment, greatly improved the positioning precision of underground operators.Below in conjunction with specification drawings and specific embodiments, the utility model is described in detail.
As shown in Figure 1, the high-precision mine real-time positioning system that the utility model provides comprises: be arranged on ground location-server 10 and be arranged on the sniffer in underworkings.
Location-server 10 is provided with location database 11 and comparison module 12.Sniffer comprises a plurality of location AP substation 21, by explosion-proof optical switch 22, is connected to location-server 10.
Wherein, location database to set up mode as follows:
(1) underworkings inner space is divided into the space lattice that formed by rectangle and by each grid point (X
i, Y
i, Z
i) be numbered N
i;
(2) at each grid point N
ithe numbering N that upper transmitting contains this grid point
iwireless calibration signal;
(3) in underworkings, a plurality of location AP substation in this wireless launcher range of receiving receives respectively described wireless calibration signal and sends to location-server;
(4) location-server resolves each location AP substation S
kthe wireless calibration signal of receiving, and each is received to signal R
kiamplitude (RSSI), arrive the correlation measure such as angle (AOA), Signal to Interference plus Noise Ratio and interference strength as the demarcation Characteristic parameter B of this grid point
i, (X
i, Y
i, Z
i) be the coordinate of grid point Ni, i=1～n, the quantity that n is grid point, k=1～m, m is the quantity of the location AP substation in wireless launcher range of receiving.
(5) the demarcation characteristic parameter of each grid point is kept in location database.For fear of error, each space networks lattice point is repeatedly sampled, and carry out filtering processing.
In the present embodiment, all location AP substation in underworkings is divided into many groups, a plurality of location AP substation in every group is connected on the network interface of an optical-electrical converter 23 by netting twine first respectively, then the light delivery outlet of optical-electrical converter 23 is connected on location-server 10 by explosion-proof optical switch 22.This arrangement, can effectively reduce the quantity of downhole transmitted line, reduces down-hole wiring, effectively reduces because the fault that line broken circuit causes improves personnel in the pit's operating efficiency.
On each location AP substation, be equipped with wireless receiving module (WiFi receiver module) and measurement module, the locating terminal 30 that underground operators is worn is provided with wireless transmitter module (WiFi transmitter module), locating terminal 30 sends detectable signal Sounding in real time, the ID that contains this locating terminal in detectable signal, location AP substation in range of receiving is received after detectable signal, by measurement module, obtain respectively the real-time characteristic parameter of detectable signal, real-time characteristic parameter comprises the amplitude (RSSI) of detectable signal, arrive angle (AOA) and Signal to Interference plus Noise Ratio (SINR), and send to location-server 10.
Comparison module 12 on location-server 10 is compared the demarcation characteristic parameter of each grid point in real-time characteristic parameter and location database 11, and wherein real-time characteristic parameter is the accurate location in locating terminal underworkings with the coordinate figure of demarcating the immediate grid node of numerical value of characteristic parameter.
While calculating accurate location, calculate first respectively the calculated value of real-time characteristic parameter and demarcation characteristic parameter; Then the calculated value of the demarcation characteristic parameter of the calculated value of real-time characteristic parameter and each grid point is compared, using the position of the immediate grid point of numerical value as underground operators the accurate location in underworkings.
In this programme, the precision of location is determined by the size of space networks lattice point, therefore, can to the setting of space networks lattice point size, improve positioning precision by the initial stage, for example: the spacing of space networks lattice point is made as to 4 meters * 4 meters * 4 meters, can be by Positioning Precision Control below 4 meters.Certainly, can to the spacing of grid point, adjust according to cost, to meet the needs of different positioning precisioies.
In addition, in the scheme that the utility model provides, also comprise locator data real-time extension device, this device comprises follows the synchronization-moving support of down-hole development machine, support is provided with the node matching with lane space grid point longitudinal cross-section, an extended wireless transmitter module is installed on each node, each extended wireless transmitter module is with face synchronizing moving, and at corresponding driving position transmitting spread signal (identical with detectable signal), the ID that includes respective extension wireless transmitter module in this spread signal, AP substation in range of receiving is sent to location-server by the extension feature parameter of spread signal, location-server adds extension feature parameter in location database, to create new grid point to.Extension feature parameter comprise received spread signal amplitude, arrive the measurement of correlation amounts such as angle, Signal to Interference plus Noise Ratio, interference strength, the coordinate of new grid point is by the location positioning of driving position and extended wireless transmitter module.
On the AP substation of location, be also provided with network monitoring module and memory, when network service is broken down, the characteristic parameter of the detectable signal that location AP substation is received is kept in memory, after network recovery is normal, can immediately all characteristic parameters in memory be uploaded to location-server, location-server generates historical locating information accordingly.
The utility model also comprises and is arranged on ground monitor workstation 40, locating terminal is provided with for sending the warning button of alarm signal, taking card personnel finds uncomfortable or while facing a danger, can send warning message by the alarm button of pressing on locating terminal, after receiving warning message, location AP substation sends monitor workstation to, monitor workstation is according to the known alert locations of the positional information of locating terminal, to arrange corresponding processing.
The underground operators high-accuracy position system that the utility model provides, except can realizing the hi-Fix of underground operators, also possesses following function:
(1) attendance management and illegally enter well and report to the police.
When carrying the entering well personnel and enter well head work attendance AP substation coverage area of locating terminal, work attendance AP substation reads the information such as the ID card number of locating terminal and order of classes or grades at school, work post, affiliated unit, locating terminal state, and shows on well head LED large-screen.
Well head work attendance AP substation is connected with location database, can inquire about at any time in/out well time and the in/out well number of times of locating terminal, is convenient to mining management;
According to the information of well head work attendance AP substation record, can realize statistics in man-hour, operating personnel in work attendance, divide in station software input/stop time statistics within certain period (as one week, one month or a season) certain enter well personnel's summation in man-hour, system provides accordingly and checks, printing function.
In attendance management, can, according to the condition restriction such as the different order of classes or grades at school ID scope that card personnel's locating terminal is taken in the interior down-hole of section sometime, when illegally taking when card personnel enter well head work attendance AP substation, can identify this card and send warning.
(2) personnel in the pit arrives at overtime warning.
According to the position of locating terminal and the time of advent, make comparisons by the card personnel arrival time of taking that the arrival time of regulation and well head work attendance AP substation are detected, thereby identify, arrive at overtime personnel, and warning message is fed back to monitor workstation.
(3) personnel in the pit's status monitoring, comprises direction of travel, the speed of travel, region, operating time, area monitoring, historical track playback of personnel in the pit etc.
(4) one people are with many cards to report to the police.
The personnel in the pit's who obtains based on real-time monitoring positional information, adds up every two locating terminals at the probability of a position, thereby a people is carried to the situations of blocking more, carries out alarm, prevents from occurring in colliery the situation of personnel Dai Ban, is convenient to personal management.
(5) the overcrowding warning in region.
Underworkings is divided into a plurality of regions, and to the maximum personnel amount of each region division, when counting when card total number of persons is taken in certain region over maximum limit person, can sends overcrowding warning, and warning message is fed back to monitor workstation.
(6) network failure is reported to the police.
After location AP substation and location-server connect, location AP divides standing-meeting initiatively to send heartbeat request signal every 5s;
Location-server returns to heartbeat response signal after receiving the heartbeat signal of AP at every turn;
If location AP substation is not received message response continuous 3 times, be considered as disconnecting with location-server;
Location AP substation is preserved locator data;
Location AP substation continuous repeated attempt is connected with location-server, once re-establish connection, locates the data that AP divides standing-meeting to scan by the data of buffer memory with current time and all sends to location-server;
Location-server positions and resolves.
(7) dual-host backup and switching.
Two location-servers are set in native system: one is master server, and another is backup server.Master server and backup server be principal and subordinate each other, bi-directional synchronization data, and when the data on a station server have the operations such as additions and deletions change, the synchronous database of mysql on another station server also has same operation.
(8) emergency alarm and informing function.
Ground monitoring work station finds that down-hole occurs extremely, has documentary whip, has unauthorized person to enter situation triggering alarm event and the notification events such as forbidden zone.
Location-server receives after alarm event and notification event, selects as required different user, zones of different or the full mine of appropriate location AP substation notice.
Location AP substation is according to alarm event and the notification event instruction of receiving, the locating terminal in the coverage of issuing a notice.Sending to area people, certain concrete personnel's signaling format to take the MAC Address of locating terminal is sign.Selection mode is the positional information according to locating terminal, finds the AP substation nearest apart from locating terminal, then announcement information is sent to this AP, if notice is all a plurality of locating terminals, relates to a plurality of AP substations.
Locating terminal, according to the alarm event and the notification event instruction that receive, carries out word demonstration, indicator light demonstration, vibration prompting or voice message, informs that the miner who carries locating terminal carries out emergency treatment.
In order to economize on electricity, a switch is set on locating terminal, control and whether need receiving alarm event and notification event.
The utility model is not limited to above-mentioned preferred forms, and anyone should learn the structural change of making under enlightenment of the present utility model, every with the utlity model has identical or close technical scheme, within all falling into protection range of the present utility model.
Claims (8)
1. underground operators high-accuracy position system, comprises and is arranged on ground location-server and is arranged on the sniffer in underworkings, it is characterized in that:
Described location-server is provided with location database, and described sniffer comprises a plurality of location AP substation, and described location AP substation is connected to described location-server by explosion-proof optical switch; In described location database, preserve in advance the demarcation characteristic parameter of each grid point on underworkings coffin grid, described demarcation characteristic parameter is the amplitude that sets in advance the demarcation signal that this received wireless transmitter module of location AP substation in the range of receiving of the wireless launcher in respective grid points sends, arrives angle, Signal to Interference plus Noise Ratio and interference strength;
Described in each, locate and on AP substation, be equipped with wireless receiving module and measurement module, the locating terminal that underground operators is worn is provided with wireless transmitter module, locating terminal sends the detectable signal of the ID that contains this locating terminal in real time by described wireless transmitter module, location AP substation in range of receiving is received after detectable signal, by the measurement module on it, obtain the real-time characteristic parameter of received detectable signal and send to location-server, described real-time characteristic parameter comprises the amplitude of the detectable signal that each location AP substation is received, arrive angle, Signal to Interference plus Noise Ratio and interference strength,
On described location-server, be also provided with for comparing the comparison module of the demarcation characteristic parameter of real-time characteristic parameter and each grid point of location database.
2. underground operators high-accuracy position system as claimed in claim 1, it is characterized in that, all location AP substation is divided into many groups, a plurality of location AP substation in every group is connected on the network interface of an optical-electrical converter by netting twine respectively, and the light delivery outlet of described optical-electrical converter is connected on described location-server by described explosion-proof optical switch.
3. underground operators high-accuracy position system as claimed in claim 1, it is characterized in that, also comprise locator data real-time extension device, described locator data real-time extension device comprises follows the synchronization-moving support of down-hole development machine, described support is provided with the node matching with lane space grid point longitudinal cross-section, an extended wireless transmitter module is installed on each node, described in each, extended wireless transmitter module is with face synchronizing moving, and at corresponding driving position transmitting spread signal, the ID that includes respective extension wireless transmitter module in this spread signal, location AP substation in range of receiving is sent to described location-server by the extension feature parameter of spread signal and adds to and in location database, creates new grid point, described extension feature parameter comprises the amplitude of received spread signal, arrive angle, signal to noise ratio and interference strength, the coordinate of new grid point is by the location positioning of driving position and extended wireless transmitter module.
4. underground operators high-accuracy position system as claimed in claim 1, is characterized in that, on the AP substation of described location, is also provided with for detection of the network monitoring module of network break-make with for preserving the memory of the real-time characteristic parameter of detectable signal.
5. underground operators high-accuracy position system as claimed in claim 1, it is characterized in that, also comprise and be arranged on ground monitor workstation, described terminal is provided with for sending the warning button of alarm signal, described substation real-time monitoring alarming signal, and send described monitor workstation to.
6. underground operators high-accuracy position system as claimed in claim 5, is characterized in that, described monitor workstation produces overcrowding warning according to the quantity of terminal in certain region and the comparative result of specified quantity.
7. underground operators high-accuracy position system as claimed in claim 5, is characterized in that, described monitor workstation produces a people according to the comparative result of the distance between adjacent two terminals and set point and is with many cards to report to the police.
8. underground operators high-accuracy position system as claimed in claim 5, is characterized in that, described monitor workstation Real-Time Monitoring is located the operating state of AP substation described in each, produces corresponding substation fault alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420246354.XU CN204014085U (en) | 2014-05-14 | 2014-05-14 | Underground operators high-accuracy position system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420246354.XU CN204014085U (en) | 2014-05-14 | 2014-05-14 | Underground operators high-accuracy position system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204014085U true CN204014085U (en) | 2014-12-10 |
Family
ID=52054020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420246354.XU Expired - Lifetime CN204014085U (en) | 2014-05-14 | 2014-05-14 | Underground operators high-accuracy position system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204014085U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103957595A (en) * | 2014-05-14 | 2014-07-30 | 肖登坤 | High-precision borehole operation personnel positioning system and method |
| CN111929639A (en) * | 2020-05-08 | 2020-11-13 | 福州外语外贸学院 | Engineering machinery positioning system and method |
| CN113286361A (en) * | 2021-05-19 | 2021-08-20 | 北华航天工业学院 | Positioning system based on WiFi and positioning method thereof |
-
2014
- 2014-05-14 CN CN201420246354.XU patent/CN204014085U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103957595A (en) * | 2014-05-14 | 2014-07-30 | 肖登坤 | High-precision borehole operation personnel positioning system and method |
| CN103957595B (en) * | 2014-05-14 | 2017-08-25 | 肖登坤 | Underground operators high-accuracy position system and method |
| CN111929639A (en) * | 2020-05-08 | 2020-11-13 | 福州外语外贸学院 | Engineering machinery positioning system and method |
| CN113286361A (en) * | 2021-05-19 | 2021-08-20 | 北华航天工业学院 | Positioning system based on WiFi and positioning method thereof |
| CN113286361B (en) * | 2021-05-19 | 2024-04-19 | 北华航天工业学院 | WiFi-based positioning system and positioning method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103957595A (en) | High-precision borehole operation personnel positioning system and method | |
| CN110708659B (en) | Personnel positioning method and system suitable for mine path | |
| CN102711040B (en) | Underground coal mine unidimensional positioning method and system based on wireless sensor network | |
| US8755814B2 (en) | Method and apparatus for intermittent location reporting | |
| CN103957508A (en) | Accurate underground wireless positioning system and method based on combination of WiFi and gyroscope | |
| CN103982240B (en) | The double integrated wireless communication system in a kind of mine personnel location | |
| CN103178999B (en) | A kind of ADS-B method of data capture | |
| CN106597419B (en) | The underground coal mine accurate positioning method synchronous without clock | |
| CN101848419A (en) | Positioning and tracking system of underground/roadway moving object | |
| JP2020052055A (en) | User device of earthquake alert system | |
| CN204014085U (en) | Underground operators high-accuracy position system | |
| CN102711245B (en) | Two-stage matching and positioning method in WLAN (Wireless Local Area Network) area in indoor environment | |
| CN103390212A (en) | Coal mine safety management system and method | |
| CN203050783U (en) | Underground positioning and monitoring communication system | |
| CN110286300A (en) | A kind of multi branch electric power lines road Fault Locating Method, device, equipment and system | |
| CN110007271A (en) | A kind of mine personnel accurate positioning method and error determination method | |
| CN103016061B (en) | Underground locating and monitoring communication system | |
| CN105578418A (en) | Wireless electronic fence system for industrial fields | |
| CN103178616A (en) | Wireless-positioning-technology-based transformer substation intelligent forbidden zone management method | |
| CN107786945A (en) | A kind of intelligent admission ticket and intelligent entrance managing system | |
| CN109874173A (en) | Real-time location method in converter station/substation under complex electromagnetic environment based on UWB | |
| CN103778505A (en) | System and method for intelligent coal mine locomotive management based on RFID and Wi-Fi technologies | |
| CN206523627U (en) | A kind of public security total management system based on UWB location technologies | |
| CN105338481A (en) | Data processing method and device for mines | |
| CN116582930A (en) | Underground personnel accurate positioning software system based on regional positioning |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141210 |