CN109286895A - A kind of mine positioning system - Google Patents
A kind of mine positioning system Download PDFInfo
- Publication number
- CN109286895A CN109286895A CN201811454036.1A CN201811454036A CN109286895A CN 109286895 A CN109286895 A CN 109286895A CN 201811454036 A CN201811454036 A CN 201811454036A CN 109286895 A CN109286895 A CN 109286895A
- Authority
- CN
- China
- Prior art keywords
- bluetooth
- underground
- mine
- server
- label
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Alarm Systems (AREA)
Abstract
The invention proposes a kind of mine positioning systems, comprising: multiple bluetooths position label, and bluetooth positions label dispersion and is set in mine；LoRa gateway, connect with server；Underground location card, underground location card is carried by personnel in the pit or is located on underground equipment, when underground location card enters the identification range of any bluetooth positioning label, the encoded information of bluetooth positioning label is received in underground location clamping, and encoded information is transmitted to server by LoRa gateway.A possibility that mine positioning system provided by the invention, LoRa gateway wide coverage can reduce the dead angle of underground location, and can position simultaneously to multiple personnels in the pit or underground equipment, and efficiency is higher, can reduce underground location card skip.It is also pointed out that LoRa band spectrum modulation mode strong antijamming capability, is not easy to interfere other equipment, convenient for the smooth use of other electronic equipments of underground.
Description
Technical field
The present invention relates to field of locating technology, in particular to a kind of mine positioning system.
Background technique
The tracking of personnel in the pit at present, substantially using radio-frequency card.Specifically, be at mine well head, or
Other some critical passage mouths in underground carry out record tracking to the personnel of going into the well by reading to radio-frequency card (RFID).But by
Short in the tag card limited operation time, working efficiency is low.System card reading speed is extremely limited, more people quickly through when will appear leakage
It reads.
Summary of the invention
The present invention is directed to solve at least one of the technical problems existing in the prior art or related technologies.
In view of this, the purpose of the present invention is to provide a kind of mine positioning systems.
To achieve the goals above, technical solution of the present invention provides a kind of mine positioning system, comprising: multiple bluetooths
Label is positioned, bluetooth positions label dispersion and is set in mine；LoRa gateway, connect with server；Underground location card, underground location
Card is carried by personnel in the pit or is located on underground equipment, when underground location card enters the identification range of any bluetooth positioning label
When, the encoded information of bluetooth positioning label is received in underground location clamping, and encoded information is transmitted to server by LoRa gateway.
Multiple Bluetooth labels are arranged in mine in the mine positioning system that this programme provides, when the underground location that personnel carry
When the underground location card for blocking or being mounted on underground equipment enters the identification range of bluetooth, bluetooth positioning is received in underground location clamping
The encoded information that label is sent, and encoded information is sent to by server by LoRa gateway, server receives bluetooth positioning
After the encoded information of card, corresponding bluetooth positioning card is determined according to the encoded information of bluetooth positioning card, and then can determine bluetooth
The position of positioning card finally can determine the position of underground location card, the i.e. position of personnel in the pit or underground equipment, realize underground
The positioning of personnel or underground equipment.
In the present solution, LoRa gateway wide coverage, can reduce the dead angle of underground location, and can be simultaneously to multiple wells
Lower personnel or underground equipment position, and efficiency is higher, can reduce more people simultaneously quickly through when underground location card skip
A possibility that.It is also pointed out that LoRa band spectrum modulation mode strong antijamming capability, is not easy to interfere other equipment, just
In the smooth use of other electronic equipments of underground.
In the above-mentioned technical solutions, it is preferable that underground location card includes: power supply, bluetooth receiving module, data acquisition process
Module and wireless transport module, bluetooth receiving module receive the encoded information of bluetooth positioning label, digital sampling and processing
It is transmitted to wireless transport module after acquisition encoded information and processing, wireless transport module is transmitted encoded information by LoRa gateway
To server.
In any of the above-described technical solution, it is preferable that underground location card further include: alarm switch and alarm module, report
Alert module is connect with alarm switch and wireless transport module, and when alarm switch is connected, alarm module passes through wireless transport module
Emit distress signal.
In any of the above-described technical solution, it is preferable that each bluetooth positioning label includes: power supply and connects to power supply
Bluetooth signal emitter, Bluetooth signal emitter periodically emit the encoded information corresponding to bluetooth positioning device.
In any of the above-described technical solution, it is preferable that mine positioning system further include: environmental detection set and alarm dress
It sets, environmental detection set and warning device are set in mine, and the environmental information that environmental detection set will test passes through LoRa net
Pass is transmitted to server, and when the corresponding environmental parameter of environmental information is higher than preset value, server passes through LoRa gateway to alarm
Device sends instruction, and alarm device issues alarm signal after receiving instruction.
In any of the above-described technical solution, it is preferable that environmental detection set includes temperature-detecting device, humidity detector
And at least one of pressure-detecting device, environmental parameter include at least one of temperature, humidity and pressure, wherein
It is any as at least two that environmental detection set includes in temperature-detecting device, humidity detector and pressure-detecting device
When kind environmental parameter is higher than preset value, server is sent to alarm device by LoRa gateway and is instructed.
In any of the above-described technical solution, it is preferable that LoRa gateway is connect with server by RJ45 bus.
Additional aspect and advantage of the invention will become obviously in following description section, or practice through the invention
Recognize.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of mine positioning system according to an embodiment of the invention.
Specific embodiment
It is with reference to the accompanying drawing and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
According to some embodiments of the present invention referring to Fig. 1 description.
As shown in Figure 1, the embodiment provides a kind of mine positioning systems, comprising: multiple bluetooths position label,
Bluetooth positions label dispersion and is set in mine；LoRa gateway, connect with server；Underground location card, underground location card is by underground
Personnel carry or are located on underground equipment, and when underground location card enters the identification range of any bluetooth positioning label, underground is fixed
The encoded information of bluetooth positioning label is received in position clamping, and encoded information is transmitted to server by LoRa gateway.
Multiple Bluetooth labels are arranged in mine in the mine positioning system that this programme provides, when the underground location that personnel carry
When the underground location card for blocking or being mounted on underground equipment enters the identification range of bluetooth, bluetooth positioning is received in underground location clamping
The encoded information that label is sent, and encoded information is sent to by server by LoRa gateway, server receives bluetooth positioning
After the encoded information of card, corresponding bluetooth positioning card is determined according to the encoded information of bluetooth positioning card, and then can determine bluetooth
The position of positioning card finally can determine the position of underground location card, the i.e. position of personnel in the pit or underground equipment, realize underground
The positioning of personnel or underground equipment.
In the present solution, LoRa gateway wide coverage, can reduce the dead angle of underground location, and can be simultaneously to multiple wells
A possibility that lower personnel or underground equipment position, and efficiency is higher, can reduce underground location card skip.It is also pointed out that
It is that LoRa band spectrum modulation mode strong antijamming capability is not easy to interfere other equipment, convenient for other electronic equipments of underground
Smoothly use.
In the above embodiment, it is preferable that underground location card includes: power supply, bluetooth receiving module, data acquisition process mould
Block and wireless transport module, bluetooth receiving module receive the encoded information of bluetooth positioning label, and digital sampling and processing is adopted
It is transmitted to wireless transport module after collection encoded information and processing, encoded information is transmitted to by wireless transport module by LoRa gateway
Server.
In any of the above-described embodiment, it is preferable that underground location card further include: alarm switch and alarm module, alarm
Module is connect with alarm switch and wireless transport module, and when alarm switch is connected, alarm module is sent out by wireless transport module
Penetrate distress signal.Wherein, in the present embodiment, alarm switch is manual push button switch.
In the present solution, personnel in the pit can press manual push button switch when emergency occurs in underground, mould of then alarming
Block emits distress signal by wireless transport module, and LoRa gateway receives distress signal and distress signal is sent to server,
Server receives and sends distress signals to controlling terminal after distress signal, quickly to be succoured.
In any of the above-described embodiment, it is preferable that each bluetooth positioning label includes: power supply and the indigo plant connected to power supply
Tooth sender unit, Bluetooth signal emitter periodically emit the encoded information corresponding to bluetooth positioning device.
Determine in the present solution, each bluetooth positioning label is periodically emitted by Bluetooth signal emitter corresponding to bluetooth
The encoded information of position device, when underground location card enters the identification range of bluetooth positioning label, underground location card can receive
The encoded information of bluetooth positioning device, and positioning is realized by sending encoded information to LoRa gateway.In the present solution, passing through bluetooth
Sender unit periodically emits the encoded information corresponding to bluetooth positioning device, can either enter indigo plant in underground location card
Encoded information is sent to underground location card after in the identification range of tooth positioning label, and the consumption of bluetooth positioning label can be reduced
Electricity, extend the power supply of bluetooth positioning label uses the time, reduces the frequency of maintenance and repair, reduces operating cost, while can
The maintenance for reducing bluetooth positioning label is influenced caused by production.
In any of the above-described embodiment, it is preferable that mine positioning system further include: environmental detection set and warning device,
Environmental detection set and warning device are set in mine, and the environmental information that environmental detection set will test is passed by LoRa gateway
Server is transported to, when the corresponding environmental parameter of environmental information is higher than preset value, server is sent out by LoRa gateway to alarm device
Alarm signal is issued after sending instruction, alarm device to receive instruction.
In the present solution, server passes through LoRa gateway to police when the corresponding environmental parameter of environmental information is higher than preset value
Device is reported to send instruction, alarm device issues alarm signal after receiving instruction, can carry out in time early warning in subsurface environment danger.
Meanwhile being integrated personnel location system and underground early warning system by LoRa gateway, mine positioning system need not repeat cloth
Line, investment reduction；Working service workload is small, and maintenance cost is low.
In any of the above-described embodiment, it is preferable that environmental detection set include temperature-detecting device, humidity detector with
And at least one of pressure-detecting device, environmental parameter include at least one of temperature, humidity and pressure, wherein when
Environmental detection set includes at least two in temperature-detecting device, humidity detector and pressure-detecting device, any
When environmental parameter is higher than preset value, server is sent to alarm device by LoRa gateway and is instructed.
In the present solution, server passes through LoRa when any parameter in temperature, humidity and pressure is higher than preset value
Gateway sends to alarm device and instructs, so that alarm device issues alarm signal, wherein alarm signal includes but is not limited to acoustical signal
And optical signal.Early warning can be made in time when subsurface environment changes, casualties caused by down-hole accident is reduced.
In any of the above-described embodiment, it is preferable that LoRa gateway is connect with server by RJ45 bus, driving capability and
Strong antijamming capability, transmission range farther out, can adapt to Minepit environment complicated and changeable.
The technical scheme of the present invention has been explained in detail above with reference to the attached drawings, according to the technical solution of the present invention, LoRa gateway
Wide coverage can reduce the dead angle of underground location, and can determine simultaneously multiple personnels in the pit or underground equipment
A possibility that position, efficiency is higher, can reduce underground location card skip.It is also pointed out that LoRa band spectrum modulation mode is anti-dry
It is strong to disturb ability, is not easy to interfere other equipment, convenient for the smooth use of other electronic equipments of underground.
In the present invention, term " first ", " second ", " third " are only used for the purpose of description, and should not be understood as indicating
Or imply relative importance；Term " multiple " then refers to two or more, unless otherwise restricted clearly.Term " installation ",
The terms such as " connected ", " connection ", " fixation " shall be understood in a broad sense, for example, " connection " may be a fixed connection, being also possible to can
Dismantling connection, or be integrally connected；" connected " can be directly connected, can also be indirectly connected through an intermediary.For this
For the those of ordinary skill in field, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In description of the invention, it is to be understood that the instructions such as term " on ", "lower", "left", "right", "front", "rear"
Orientation or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of the description present invention and simplification is retouched
It states, rather than the device or unit of indication or suggestion meaning must have specific direction, be constructed and operated in a specific orientation,
It is thus impossible to be interpreted as limitation of the present invention.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the invention
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more of the embodiments or examples with
Suitable mode combines.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of mine positioning system characterized by comprising
Multiple bluetooths position label, and the bluetooth positioning label dispersion is set in mine；
LoRa gateway, connect with server；
Underground location card, the underground location card is carried by personnel in the pit or is located on underground equipment, when the underground location card
When positioning the identification range of label into any bluetooth, the coding letter of the bluetooth positioning label is received in the underground location clamping
Breath, and the encoded information is transmitted to by the server by the LoRa gateway.
2. mine positioning system according to claim 1, which is characterized in that the underground location card includes:
Power supply, bluetooth receiving module, digital sampling and processing and wireless transport module, the bluetooth receiving module receive institute
The encoded information of bluetooth positioning label is stated, the digital sampling and processing acquires the encoded information and is transmitted to institute after handling
Wireless transport module is stated, the encoded information is transmitted to the service by the LoRa gateway by the wireless transport module
Device.
3. mine positioning system according to claim 2, which is characterized in that the underground location card further include:
Alarm switch and alarm module, the alarm module are connect with the alarm switch and the wireless transport module,
When the alarm switch is connected, the alarm module emits distress signal by the wireless transport module.
4. mine positioning system according to claim 1, which is characterized in that each bluetooth positions label and includes:
Power supply and the Bluetooth signal emitter connecting with the power supply, the Bluetooth signal emitter periodically emit
Encoded information corresponding to the bluetooth positioning device.
5. mine positioning system according to any one of claim 1 to 4, which is characterized in that further include:
Environmental detection set and warning device, the environmental detection set and the warning device are set in mine, the ring
The environmental information that border detection device will test is transmitted to the server by the LoRa gateway, when the environmental information is corresponding
Environmental parameter be higher than preset value when, the server by the LoRa gateway to the alarm device send instruct, the police
Report device issues alarm signal after receiving described instruction.
6. mine positioning system according to claim 5, which is characterized in that
The environmental detection set includes at least one in temperature-detecting device, humidity detector and pressure-detecting device
Kind, the environmental parameter includes at least one of temperature, humidity and pressure,
Wherein, when the environmental detection set includes the temperature-detecting device, the humidity detector and the pressure
At least two in detection device, when any environmental parameter is higher than preset value, the server passes through the LoRa net
It closes to send to the alarm device and instruct.
7. mine positioning system according to any one of claim 1 to 4, which is characterized in that
The LoRa gateway is connect with the server by RJ45 bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811454036.1A CN109286895A (en) | 2018-11-30 | 2018-11-30 | A kind of mine positioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811454036.1A CN109286895A (en) | 2018-11-30 | 2018-11-30 | A kind of mine positioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109286895A true CN109286895A (en) | 2019-01-29 |
Family
ID=65174135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811454036.1A Pending CN109286895A (en) | 2018-11-30 | 2018-11-30 | A kind of mine positioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109286895A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111510853A (en) * | 2020-04-16 | 2020-08-07 | 合肥工大高科信息科技股份有限公司 | Mine positioning label system and positioning method |
| CN111970643A (en) * | 2020-08-31 | 2020-11-20 | 深圳市紫光新能源技术有限公司 | Mine positioning system based on bluetooth |
| CN112291711A (en) * | 2020-10-09 | 2021-01-29 | Oppo广东移动通信有限公司 | Terminal and positioning method and positioning device thereof |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101303737A (en) * | 2008-06-17 | 2008-11-12 | 上海轶龙应用软件开发有限公司 | Method for locating bidirectional down-hole personnel |
| CN203296818U (en) * | 2013-06-17 | 2013-11-20 | 河北省通信建设有限公司 | Mine detection and personnel positioning system |
| CN203734843U (en) * | 2014-01-16 | 2014-07-23 | 上海华亨电信设备有限公司 | Coal-mine worker positioning system |
| CN104410955A (en) * | 2014-11-15 | 2015-03-11 | 安徽省新方尊铸造科技有限公司 | Miner positioning method based on low-power Bluetooth positioning technology |
| CN205578034U (en) * | 2016-04-27 | 2016-09-14 | 巢湖学院 | Mine personnel location system |
| US9544721B2 (en) * | 2013-07-26 | 2017-01-10 | Apple Inc. | Address point data mining |
| CN106714260A (en) * | 2016-12-12 | 2017-05-24 | 南京蓝思信息科技有限公司 | Positioning and communication system and method based on LORA |
| CN107153886A (en) * | 2017-03-31 | 2017-09-12 | 深圳市亿兆互联技术有限公司 | A kind of customer's localization method for market layout optimization |
| CN107635005A (en) * | 2017-09-28 | 2018-01-26 | 河南汇纳科技有限公司 | A kind of improved earth leakage protective device |
| CN108093475A (en) * | 2017-12-29 | 2018-05-29 | 重庆地质矿产研究院 | Mine personnel positioning device and method |
| CN108318860A (en) * | 2017-12-29 | 2018-07-24 | 谷米科技有限公司 | LORA method of locating terminal, system and LORA Internet of Things management platforms |
| CN108769921A (en) * | 2018-07-25 | 2018-11-06 | 山东精诚电子科技有限公司 | Region based on LoRa and it is accurately positioned the mine positioning system and method blended |
| CN108872936A (en) * | 2018-04-24 | 2018-11-23 | 长沙学院 | A kind of terminal device three dimension location method based on LoRa |
-
2018
- 2018-11-30 CN CN201811454036.1A patent/CN109286895A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101303737A (en) * | 2008-06-17 | 2008-11-12 | 上海轶龙应用软件开发有限公司 | Method for locating bidirectional down-hole personnel |
| CN203296818U (en) * | 2013-06-17 | 2013-11-20 | 河北省通信建设有限公司 | Mine detection and personnel positioning system |
| US9544721B2 (en) * | 2013-07-26 | 2017-01-10 | Apple Inc. | Address point data mining |
| CN203734843U (en) * | 2014-01-16 | 2014-07-23 | 上海华亨电信设备有限公司 | Coal-mine worker positioning system |
| CN104410955A (en) * | 2014-11-15 | 2015-03-11 | 安徽省新方尊铸造科技有限公司 | Miner positioning method based on low-power Bluetooth positioning technology |
| CN205578034U (en) * | 2016-04-27 | 2016-09-14 | 巢湖学院 | Mine personnel location system |
| CN106714260A (en) * | 2016-12-12 | 2017-05-24 | 南京蓝思信息科技有限公司 | Positioning and communication system and method based on LORA |
| CN107153886A (en) * | 2017-03-31 | 2017-09-12 | 深圳市亿兆互联技术有限公司 | A kind of customer's localization method for market layout optimization |
| CN107635005A (en) * | 2017-09-28 | 2018-01-26 | 河南汇纳科技有限公司 | A kind of improved earth leakage protective device |
| CN108093475A (en) * | 2017-12-29 | 2018-05-29 | 重庆地质矿产研究院 | Mine personnel positioning device and method |
| CN108318860A (en) * | 2017-12-29 | 2018-07-24 | 谷米科技有限公司 | LORA method of locating terminal, system and LORA Internet of Things management platforms |
| CN108872936A (en) * | 2018-04-24 | 2018-11-23 | 长沙学院 | A kind of terminal device three dimension location method based on LoRa |
| CN108769921A (en) * | 2018-07-25 | 2018-11-06 | 山东精诚电子科技有限公司 | Region based on LoRa and it is accurately positioned the mine positioning system and method blended |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111510853A (en) * | 2020-04-16 | 2020-08-07 | 合肥工大高科信息科技股份有限公司 | Mine positioning label system and positioning method |
| CN111970643A (en) * | 2020-08-31 | 2020-11-20 | 深圳市紫光新能源技术有限公司 | Mine positioning system based on bluetooth |
| CN111970643B (en) * | 2020-08-31 | 2021-09-28 | 深圳市紫光新能源技术有限公司 | Mine positioning system based on bluetooth |
| CN112291711A (en) * | 2020-10-09 | 2021-01-29 | Oppo广东移动通信有限公司 | Terminal and positioning method and positioning device thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109286895A (en) | A kind of mine positioning system | |
| CN102722741B (en) | Based on vehicle data acquisition device and the method for active radio frequency identification | |
| CN101758836B (en) | Proofreading method and system for mileage of track inspection car | |
| CN103174325B (en) | A kind of construction fence device | |
| CN209746580U (en) | Intelligent tracking and monitoring system and device for railway construction tool | |
| CN110062333A (en) | Assets orientation management system and positioning label | |
| CN103634061A (en) | Electromagnetic radiation monitoring system | |
| CN101174307A (en) | Remote monitoring method for answering machine | |
| CN108702587A (en) | Method and apparatus for detecting anomalous antenna conditions | |
| CN203260197U (en) | Double-frequency identification system for identification of fake-licensed vehicle | |
| CN113645659B (en) | Transponder transmission system | |
| CN103297916B (en) | Wireless remote intelligent locomotive navigation system and alarm | |
| CN108627800A (en) | Underground mining area personnel location system and method | |
| CN104702348B (en) | Large Copacity BTM automatic detection devices | |
| CN201373868Y (en) | Termite detection system | |
| CN202160282U (en) | Downhole personnel positioning system for mine | |
| CN101886469B (en) | Building site dangerous point monitoring system | |
| CN203502240U (en) | Apparatus for acquiring brake cylinder states in air test of marshalling train examination | |
| CN108263445A (en) | Train Approaching EW system | |
| CN208444187U (en) | A kind of harbour energy-consumption monitoring system | |
| CN205280218U (en) | Lamp house for subway tunnel with alarming function | |
| CN101649960B (en) | Portable lamp and failure monitoring system used for mine operation | |
| CN2938254Y (en) | Beacon telemetering remote control device | |
| CN100478982C (en) | Radio frequency identification device of implementing remote control management and its control method | |
| CN108263444A (en) | Train Approaching EW system based on dipper system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190129 |