CN108418630A - A kind of information sends, reception device and its maintaining method, system - Google Patents
A kind of information sends, reception device and its maintaining method, system Download PDFInfo
- Publication number
- CN108418630A CN108418630A CN201810219956.9A CN201810219956A CN108418630A CN 108418630 A CN108418630 A CN 108418630A CN 201810219956 A CN201810219956 A CN 201810219956A CN 108418630 A CN108418630 A CN 108418630A
- Authority
- CN
- China
- Prior art keywords
- information
- light
- symbol
- continuous
- decoding
- 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
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
- H04B10/1141—One-way transmission
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
- Mobile Radio Communication Systems (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
A kind of information of present invention offer is sent, reception device and its maintaining method, system, described information sending device include：Memory is stored with the geographical location information residing for described information sending device；Processor is connected with the memory, handles the geographical location information, generates positioning message, is encoded to the positioning message, generates control instruction；Controller is connected with the processor, and the light on and off of light wave transmitter are controlled using the control instruction；Light wave transmitter is connected with the controller, the output light location information under the control of the control instruction.The present invention is by using special information coding and decoding technique, shorten the gap periods of optical information, improve the coding frequency of light, solve the problems, such as dodge frequency, without use camera be aligned light, also be not present camera overexposure the problem of, strong antijamming capability, it is easy to use, route guidance is can be used not only for, consumption navigation is can be used for.
Description
The application be application No. is：2015109333828, invention and created name is：A kind of information sends, reception device and its dimension
Maintaining method, system, the applying date be：The divisional application of the application for a patent for invention on December 15th, 2015.
Technical field
The invention belongs to fields of communication technology, are related to a kind of communication means, are sent more particularly to a kind of information, receive dress
It sets and its maintaining method, system.
Background technology
Since the ground such as megastore, underground parking garage can not receive satellite-signal so that the navigation for relying on satellite-signal is soft
Part cannot provide navigation Service to the user because that can not obtain correct position information.There are many schemes just in research and probe at present
In, including WIFI, RFID, bluetooth, the technologies such as ZegBee, wherein because precision is not high or can not implement because cost is too high.Also
Some places are not allow to use radio signal, this also results in the difficulty of positioning.
In comparison, higher precision can be accomplished using the method that light positions, but it is obtained by camera
Signal simultaneously obtains information in a manner of image procossing, and this scheme has the following disadvantages：
1) it needs to demarcate the time for exposure of imaging sensor when using.There is no calibrated camera when in use
It will appear local excessive exposure, influence the width of striped.For example, in overexposure region, bright fringe may broaden, and the filaments of sun
Line may narrow or even disappear, and image analysis and decoding is caused to fail；It bundles hardware and software, gives technology
Popularization bring prodigious difficulty.
2) information for including in light needs to obtain by camera, and information is obtained in a manner of image procossing, due to
Using image processing techniques, the requirement to image is relatively high, and when use wants alignment light source, very inconvenient in actual use,
There is certain limitation.
3) use camera gathered data that can increase power consumption, it is also a shortcoming that this is promoted on smart mobile phone.
Invention content
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of information to send, reception device
And its maintaining method, system, for solving the problems, such as that existing light-seeking method is inconvenient for use, Difficulty.
In order to achieve the above objects and other related objects, the present invention provides a kind of information transmitting apparatus, and described information is sent
Device includes：Memory is stored with the geographical location information residing for described information sending device；Processor, with the memory
It is connected, the geographical location information is handled, generates positioning message, the positioning message is encoded, generate control
Instruction；Controller is connected with the processor, and the light on and off of light wave transmitter are controlled using the control instruction；Light wave transmitter,
It is connected with the controller, the output light location information under the control of the control instruction.
Optionally, the geographical location information is packaged into positioning message by the processor；Before the positioning message includes
Lead information, geographical location information, check information or/and after lead information.
Optionally, the processor carries out multicomponent coding to each information bit of the positioning message, generates the control
Instruction；The tuple that the coding member of the multicomponent coding arranges for 0 and 1；Continuous 0 number is less than or equal to 3 in the tuple；Institute
It includes 2 primitive encodings, 3 primitive encodings or 4 primitive encodings to state multicomponent coding；The volume code element number of 2 primitive encoding is 2；3 primitive encoding
Volume code element number be 3；The volume code element number of 4 primitive encoding is 4；Wherein, symbol 0 controls the light wave transmitter and goes out, and symbol 1 is controlled
It is bright to make the light wave transmitter.
Optionally, the processor carries out optical pulse code to each information bit of the positioning message, generates the control
System instruction；The positioning message is combined and is constituted by information word A and information word B；Light wave described in the low level control of light pulse emits
Device goes out, and the high level control light wave transmitter of light pulse is bright；Described information member A is encoded using the first light pulse,
Described information member B is encoded using the second light pulse；First light pulse is (M × T0+T1) H+ (T2+N × T0) L；
Second light pulse is (P × T0+T3) H+ (T4+Q × T0) L；Wherein, H indicates that high level, L indicate low level, M × T0+T1
Indicate that the duration of the high level of the first light pulse, P × T0+T3 indicate the duration of the high level of the second light pulse, T2+N × T0 tables
Show that the low level duration of the first light pulse, T4+Q × T0 indicate the low level duration of the second light pulse；T0 is indicated between sampling
Every duration, M, N, P, Q are the positive integer more than or equal to 0, and P >=M；T1 indicates the minimum high level duration of the first light pulse,
T2 indicates that the minimum low level duration of the first light pulse, T3 indicate that the minimum high level duration of the second light pulse, T4 indicate second
The minimum low level duration of light pulse；Wherein, T1≤T0≤1/2 × (T1+T2), 1/3 × (T1+T2) ＜ T0, T2 >=T0, T4 >=
T0, and T3 ＞ 2T0；If described information member A is 0, described information member B is 1；If described information member A is 1, described information member B
It is 0.
Optionally, the control instruction includes the positioning message encoded by least one kind of coding rule.
Optionally, described information sending device further includes：Receiver is connected with the processor, and information is safeguarded in reception；Hair
Emitter is connected with the processor, emits the geographical location information or/and identification number of described information sending device.
Optionally, the geographical location information includes the number for ground map logo, location coordinate information, or/and life
Coordinate information；The number corresponds to position encoded in map for identification information sending device position；The position
Coordinate information can directly be navigated positioning software by conversion formula or electronic map is used；The life coordinate information packet
Include country, province, city, region, street, number, floor or/and room number.
Optionally, coding, location coordinate information or the life coordinate information in the geographical location information are a kind of search
The call number of engine；Described search engine searches out and the relevant consumption information of the geographical location information according to the call number
Or life information.
The present invention also provides a kind of information receiver, described information reception device includes：Receiving module receives information hair
The light-seeking information for sending device to export；The receiving module is light-sensitive device；Processing module is connected with the receiving module, solution
The light-seeking information is analysed, the geographical location information of described information sending device is obtained.
Optionally, the processing module includes：Sampling unit carries out each code element of the light-seeking information to be more than 2
Secondary sampling obtains sampled data；Decoding unit is connected with the sampling unit, is decoded to the sampled data, obtains
Generate the control instruction of the light-seeking information；The decoding unit counts in the sampled data continuous 0 number,
Obtain the first count value；The size for comparing first count value and first threshold determines the continuous 0 corresponding symbol 0
Number；The decoding unit counts in the sampled data continuous 1 number, obtains the second count value；Compare described
The size of second count value and second threshold determines the number of the continuous 1 corresponding symbol 1；Recovery unit, with the decoding
Unit is connected, and restores positioning message according to the control instruction, and described information sending device is extracted from the positioning message
Geographical location information.
Optionally, when the light-seeking information is to be obtained by binary coding, and the sampling unit believes the light-seeking
The each code element of breath carries out being more than 2 times when being less than 3 samplings, the decoding unit in the sampled data continuous 0
Symbol decoding of the number less than or equal to 3 is 10, and symbol decoding of the number more than or equal to 4 to continuous 0 is 20, to continuous
Symbol decoding of 1 number less than or equal to 3 is 11, and symbol decoding of the number more than or equal to 4 to continuous 1 is 21；
Wherein, the content of the binary coding is：0 information bit is encoded to 10,1 information bit bits of coded 01.
Optionally, when the light-seeking information is to be obtained by binary coding, and the sampling unit believes the light-seeking
When each code element of breath carries out 4 samplings, the decoding unit is less than or equal in the sampled data continuous 0 number
5 symbol decoding is 10, and symbol decoding of the number more than or equal to 7 to continuous 0 is 20, is less than to continuous 1 number
Or the symbol decoding equal to 5 is 11, symbol decoding of the number more than or equal to 7 to continuous 1 is 21；Wherein, described two
The content of primitive encoding is：0 information bit is encoded to 10,1 information bit bits of coded 01.
Optionally, when the light-seeking information is to be obtained by four primitive encodings, and the sampling unit believes the light-seeking
The each code element of breath carries out being more than 2 times when being less than 3 samplings, the decoding unit in the sampled data continuous 0
Symbol decoding of the number less than or equal to 3 is 10, and symbol decoding of the number more than or equal to 4 to continuous 0 is 20, to continuous
Symbol decoding of 1 number less than or equal to 3 is 11, and symbol decoding of the number more than or equal to 4 to continuous 1 is 21；
Wherein, the content of four primitive encoding is：0 information bit is encoded to 0101,1 information bit bits of coded 0011.
Optionally, the processing module includes：Sampling unit, sampling interval duration T0 adopt the light-seeking information
Sample obtains sampled data；Decoding unit is connected with the sampling unit, is decoded to the sampled data, obtains and generates institute
State the control instruction of light-seeking information, i.e. decoding data；The decoding unit is continuously 1 to being collected in the sampled data
When number is more than P+2,1 symbol 1 finally acquired is abandoned；After having acquired 1, subsequent acquisition is more than to the number for being continuously 0
max<Q,N>When+1,1 symbol 0 finally acquired is abandoned；Wherein max<Q,N>It indicates to take the maximum in Q and N the two；When adopting
Integrate the he number for being continuously 1 equal to P+2 and when being subsequently continuously 0 he number as Q+1, determines the continuous P+2
The gathered data that symbol 1 and continuous Q+1 symbol 0 are constituted is decoded as information word B；Other situations is per (M+N+2) a symbol structure
At gathered data be decoded as information word A；If the information word A is 0, described information member B is 1；If described information member A is
1, then described information member B is 0；Recovery unit is connected with the decoding unit, restores positioning message according to the control instruction,
And the geographical location information of described information sending device is extracted from the positioning message.
Optionally, when described information reception device is as independent device, it is received to information assisted by bluetooth communication
View or WIFI are sent to other mobile terminal devices；Or described information reception device is built in Intelligent mobile equipment or mobile unit
In.
The present invention also provides a kind of mobile route and consumption navigation terminal, the mobile route consumption navigation terminal includes：
Information receiving module receives light-seeking information, and decodes geographical location information；Message processing module is received with described information
Module be connected, using the geographical location information realize itself positioning or/and navigation routine calibration；Or utilize geographical position
Coding, location coordinate information or life coordinate information in confidence breath draw sincere call number as information search, search out itself
Position or the nearby commodity or consumption information of place trade company；Information display module is connected with described information processing module, shows institute
Self-position or the nearby commodity or consumption information of place trade company are stated, facilitates consumer to select consumption, realizes consumption navigation function；
Communication module is connected with described information processing module, the commodity or consumption information and route guidance for receiving trade company
Map or other relevant informations.
The present invention also provides a kind of maintaining method of information transmitting apparatus, the maintaining method packets of described information sending device
It includes：Initialize installation is carried out to an information transmitting apparatus powered on；The Initialize installation process includes：It is powered on described
Information transmitting apparatus is communicatively coupled；For described information sending device, geographical location information is set；It sends and fills for described information
Install password.
Optionally, the maintaining method of described information sending device further includes：To the information transmitting apparatus after an initialization
It modifies verification；The modification checking procedure includes：It is communicatively coupled with the information transmitting apparatus powered on；It inputs close
Code carries out authentication；By according to the geographical location information of instruction modification described information sending device, or reading institute after verification
The geographical location information for stating information transmitting apparatus is verified.
The present invention also provides a kind of maintenance system of information transmitting apparatus, the maintenance system of described information sending device is run
There is the maintaining method of the information transmitting apparatus.
As described above, the information transmission of the present invention, reception device and its maintaining method, system, have the advantages that：
The present invention shortens the gap periods of optical information, improves by using special information coding and decoding technique
The coding frequency of light solves the problems, such as sudden strain of a muscle frequency, and without using camera to be directed at light, camera overexposure is also not present
Problem, strong antijamming capability is easy to use, can be used not only for route guidance, can be used for consumption navigation.
Description of the drawings
Fig. 1 a are shown as a kind of realization structural schematic diagram of the information transmitting apparatus described in the embodiment of the present invention.
Fig. 1 b are shown as a kind of realization form schematic diagram of the positioning message described in the embodiment of the present invention.
Fig. 1 c are shown as a kind of coding waveforms schematic diagram of the binary coding described in the embodiment of the present invention.
Fig. 1 d are shown as a kind of coding waveforms schematic diagram of the solid size primitive encoding described in the embodiment of the present invention.
Fig. 1 e are shown as another coding waveforms schematic diagram of the solid size primitive encoding described in the embodiment of the present invention.
Fig. 2 a are shown as a kind of realization structural schematic diagram of the information receiver described in the embodiment of the present invention.
Fig. 2 b are shown as a kind of waveform signal of the decoding process of 2 sampling of binary symbol described in the embodiment of the present invention
Figure.
Fig. 2 c are shown as a kind of waveform signal of the decoding process of 4 sampling of binary symbol described in the embodiment of the present invention
Figure.
Fig. 2 d are shown as a kind of waveform signal of the decoding process of 2 sampling of quaternary symbol described in the embodiment of the present invention
Figure.
Fig. 2 e are shown as a kind of decoding process hardware architecture diagram described in the embodiment of the present invention.
Fig. 3 is shown as a kind of realization structural representation of mobile route and consumption navigation terminal described in the embodiment of the present invention
Figure.
Fig. 4 is shown as a kind of implementation process signal of the maintaining method of the information transmitting apparatus described in the embodiment of the present invention
Figure.
Fig. 5 is shown as another implementation process signal of the maintaining method of the information transmitting apparatus described in the embodiment of the present invention
Figure.
Fig. 6 is shown as information transmitting apparatus described in the embodiment of the present invention and its maintenance system and information receiver
A kind of operative scenario schematic diagram.
Specific implementation mode
Illustrate that embodiments of the present invention, those skilled in the art can be by this specification below by way of specific specific example
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also be based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under the spirit of the present invention.It should be noted that in the absence of conflict, following embodiment and implementation
Feature in example can be combined with each other.
It should be noted that the diagram provided in following embodiment only illustrates the basic structure of the present invention in a schematic way
Think, component count, shape and size when only display is with related component in the present invention rather than according to actual implementation in schema then
Draw, when actual implementation kenel, quantity and the ratio of each component can be a kind of random change, and its assembly layout kenel
It is likely more complexity.
Currently, largely having used, commercially available mobile device (such as smart mobile phone, tablet computer, palm PC
Deng) in addition to camera, further include photosensitive sensor (light sensor), these photosensitive sensors are low in energy consumption, are used without
Stringent alignment light source can obtain location information in the Effective Illuminance of light, and accuracy can also reach the other precision of meter level, therefore,
The present invention is used realizes the scheme of light-seeking based on this photosensitive sensor, is described as follows.
A is please referred to Fig.1, the present invention provides a kind of information transmitting apparatus, and described information sending device 100 includes：Memory
110, processor 120, controller 130, light wave transmitter 140, receiver 150, transmitter 160.The memory 110, control
Device 130, receiver 150 and transmitter 160 are respectively connected with the processor, the light wave transmitter 140 and the control
Device 130 is connected.
The memory 110 is stored with the geographical location information residing for described information sending device.The processor 120 with
The memory 110 is connected, and handles the geographical location information, generates positioning message, is carried out to the positioning message
Coding generates control instruction.The controller 130 is connected with the processor 120, is sent out using control instruction control light wave
The light on and off of emitter.The light wave transmitter 140 is connected with the controller 130, the output light under the control of the control instruction
Location information.The receiver 150 is connected with the processor 120, and information is safeguarded in reception.The transmitter 160 and the place
It manages device 120 to be connected, emits the geographical location information or/and identification number of described information sending device.
The geographical location information that the memory 110 stores includes number for ground map logo, location coordinate information,
Or/and life coordinate information；The number corresponds to position encoded in map for identification information sending device position；
The location coordinate information can directly be navigated positioning software by conversion formula or electronic map is used；The life is sat
It includes country, province, city, region, street, number, floor or/and room number to mark information.In the geographical location information
Coding, location coordinate information or life coordinate information be a kind of call number of search engine；Described search engine is according to
Call number searches out and the relevant consumption information of the geographical location information or life information.Volume in the geographical location information
Code, location coordinate information or life coordinate information can increase classification in coding.A kind of example is that such as 00 beginning is below
Position coordinates indicate specific buildings in position encoded or coordinate, need to specify the building that can just make in the application
With；The 01 subsequent position coordinates of beginning indicate the position encoded or coordinate of specific region, as long as specifying in the application in this way
The region can use；The 10 subsequent position coordinates of beginning indicate the position encoded or coordinate within the scope of town, are applying
It can be used as long as specifying the city in program.
The processor 120 handles the geographical location information, generate positioning message, to the positioning message into
Row coding, generates control instruction.The control instruction includes the positioning message encoded by least one kind of coding rule.Wherein, institute
It states processor and the geographical location information is packaged into positioning message；A kind of realization format of the positioning message is leading letter
Breath, geographical location information, check information or/and after lead information, shown in Fig. 1 b, that is, the positioning message includes leading letter
Breath, geographical location information, check information or/and after lead information.Wherein, the preface information is to position the point identification of message
Symbol, whether the check information is correct for verifying positioning message, and it is to position the end identifier of message that information is led after described.This
The principle of invention is will to position message to be converted into optical signal output, is positioned using most common light, and then realize indoor
Or the accurate positioning function in the bad place of the GPS/ Big Dipper positioning signals such as underground garage.Since the machine language of positioning message is
It is made of 0 and 1, the present invention will be combined together the characteristics of machine language with the characteristics of light light on and off, utilize the light on and off of light
It has deduced and has positioned the content of message, be not necessarily to other pilot process, transfer process is not only succinct, and efficient.Since positioning is reported
Multiple 0 the case where may continuously occur in text, if according to above-mentioned thinking carry out light light on and off deduction, will exist light it is long when
Between be in " going out " state, this can undoubtedly influence the normal illumination of light.For this purpose, processor of the present invention is to the positioning
Each information bit (i.e. 0 information bit or 1 information bit) of message carries out multicomponent coding, and generation will not cause light often to go out situation appearance
Control instruction.
The present embodiment proposes that the first coding mode (i.e. multi-code primitive encoding) is：The processor is to the positioning message
Each information bit carries out multicomponent coding, generates the control instruction；The tuple that the coding member of the multicomponent coding arranges for 0 and 1；
Continuous 0 number is less than or equal to 3 in the tuple；The multicomponent coding includes 2 primitive encodings, 3 primitive encodings or 4 primitive encodings；Institute
The volume code element number for stating 2 primitive encodings is 2；The volume code element number of 3 primitive encoding is 3；The volume code element number of 4 primitive encoding is 4；Its
In, symbol 0 controls the light wave transmitter and goes out, and it is bright that symbol 1 controls the light wave transmitter.
Such as：2 primitive encodings are carried out to information bit, the symbol ginseng of coding is shown in Table 1, if the content of coding prelocalization message
It is 00001111, then the content of positioning message (i.e. control instruction) is 1010101001010101 after encoding, and waveform is referring to figure
Shown in 1c.
Table 1:2 primitive encoding sample tables
Information word (i.e. information bit) code symbols
0 10
1 01
Such as：4 primitive encodings are carried out to information bit, the symbol ginseng of coding is shown in Table 2, if the content of coding prelocalization message
It is 00001111, then the content of positioning message (i.e. control instruction) is 010101010101010100110011001100 after encoding
11。
Table 2:4 primitive encoding sample tables
Information word (i.e. information bit) code symbols (i.e. tuple)
0 0101
1 0011
In addition, the coding mode of binary coding further includes：For example, 00 is encoded to odd number information word 1, the several letters of antithesis
Breath member 1 is encoded to 11 etc..Protection scope of the present invention is not limited to the coding staff for several specific coding symbols that the present invention enumerates
Formula, every principle according to the present invention by the code symbols of deformation encoded in the way of be included in the present invention protection model
In enclosing.
Shown in Fig. 1 d and Fig. 1 e, the present embodiment proposes that second of coding mode (i.e. solid size primitive encoding) is：The place
It manages device and optical pulse code is carried out to each information bit of the positioning message, generate the control instruction；The positioning message by
Information word A and information word B combinations are constituted；Light wave transmitter is gone out described in the low level control of light pulse, the high level control of light pulse
It is bright to make the light wave transmitter；Described information member A is encoded using the first light pulse, using the second light pulse to the letter
Breath member B is encoded；First light pulse is (M × T0+T1) H+ (T2+N × T0) L；Second light pulse is (P × T0+
T3)H+(T4+Q×T0)L；Wherein, H indicates that high level, L indicate that low level, M × T0+T1 indicate the high level of the first light pulse
Duration, P × T0+T3 indicate the second light pulse high level duration, T2+N × T0 indicate the first light pulse it is low level
Duration, T4+Q × T0 indicate the low level duration of the second light pulse；T0 indicates sampling interval duration, and M, N, P, Q are to be more than
Positive integer equal to 0, and P >=M；T1 indicates that the minimum high level duration of the first light pulse, T2 indicate the minimum of the first light pulse
Low level duration, T3 indicate that the minimum high level duration of the second light pulse, T4 indicate the minimum low level duration of the second light pulse；
Wherein, T1≤T0≤1/2 × (T1+T2), 1/3 × (T1+T2) ＜ T0, T2 >=T0, T4 >=T0, and T3 ＞ 2T0；If described information
First A is 0, then described information member B is 1；If described information member A is 1, described information member B is 0.In the present embodiment, H and L also may be used
To exchange, 0 and 1 must exchange when corresponding decoding.In such coding, in order to make luminous flux be constant in each period, need
The level of symbol be adjusted, keep the average flux in each information word equal, is i.e. the mean power of signal is equal.
The controller 130 is connected with the processor 120, and the bright of light wave transmitter is controlled using the control instruction
It goes out.
The light wave transmitter 140 is connected with the controller 130, and light-seeking is exported under the control of the control instruction
Information.The light wave transmitter 140, which includes that such as LED light is any, to be had illumination functions and is believed according to the control output light of controller
Number equipment.
The receiver 150 is connected with the processor 120, and information is safeguarded in reception.It is described to safeguard that information includes the letter
It is any with the information for safeguarding meaning to cease initialization information, modification information, check information of sending device etc..
The transmitter 160 is connected with the processor 120, emits the geographical location information of described information sending device
Or/and identification number.The memory 110 can also be stored with unique identity number of described information sending device (referred to as
Identification number).The receiver 150 and the transmitter 160 be for the maintained equipment of information transmitting apparatus carry out it is wireless or
The device of wire communication.
The present embodiment also provides a kind of information receiver, and described information reception device short distance reception above- mentioned information is sent
The geographical location information of device transmitting, and then realize the accurate positionin to the current location of moveable information receiver.
Shown in Fig. 2 a, described information reception device 200 includes：Receiving module 210, processing module 220.The reception
Module 210 receives the light-seeking information that information transmitting apparatus 100 exports；The receiving module is light-sensitive device.The processing mould
Block 220 is connected with the receiving module 210, parses the light-seeking information, obtains the geographical location of described information sending device
Information.When described information reception device is as independent device, can by the information received by bluetooth communication agreement or
WIFI is sent to other mobile terminal devices.When described information reception device is as embedded equipment, described information reception device
It can be built in Intelligent mobile equipment or mobile unit.The signal receiving device can be embedded in mobile navigation terminal,
Information receiving module can also be can be regarded as when inside embedded mobile terminal, independently of movement independently of mobile navigation terminal
It can be regarded as information receiver when navigation terminal.When independently of mobile navigation terminal, the signal receiving device is led with movement
Can be that wired, wireless such as bluetooth, WIFI modes communicates between boat terminal.
The receiving module 210 receives the light-seeking information that information transmitting apparatus 100 exports.The receiving module 210 is
Light-sensitive device.The features of the present invention is that the receiving module 210 is light-sensitive device, rather than camera.Work as described information
When reception device 200 is mobile phone, mobile phone need to can only realize the reception of light-seeking information using self-contained light-sensitive device,
Without opening camera, compared to by camera receive optical signal in the way of, the present invention not only more power saving, and more save eventually
Hold resource.In practical applications, receiving module 210 can also receive ambient light information other than receiving light-seeking information, with
And the significantly variation of optical signal is caused due to the shaking of mobile terminal itself, these signals needs are added by way of filtering
To filter out.
The processing module 220 is connected with the receiving module 210, parses the light-seeking information, obtains described information
The geographical location information of sending device.Further, the processing module 220 includes：Sampling unit 221, decoding unit 222 are extensive
Multiple unit 223.The sampling unit 221 carries out each code element of the light-seeking information to be more than 2 samplings for being less than 3 times,
Obtain sampled data.The decoding unit 222 is connected with the sampling unit 221, is decoded to the sampled data, obtains
Generate the control instruction of the light-seeking information；The recovery unit 223 is connected with the decoding unit 222, according to the control
System instruction restores positioning message, and the geographical location information of described information sending device is extracted from the positioning message.
The present embodiment enumerates a kind of decoding process for the first coding mode, specifically includes：The decoding is single
Member counts in the sampled data continuous 0 number, obtains the first count value；Compare first count value and first
The size of threshold value determines the number of the continuous 0 corresponding symbol 0；The decoding unit is in the sampled data continuous 1
Number is counted, and the second count value is obtained；The size for comparing second count value and second threshold determines described continuous 1
The number of corresponding symbol 1.
After light-sensitive device receives the light-seeking information of the output of information transmitting apparatus 100, need from light-seeking information
Extract geographical location information, it is necessary to which light-seeking information is converted into machine language.For this purpose, the processing module 220 utilizes
Sampling unit 221 samples each code element of the light-seeking information, and in order to keep sampling undistorted, each code element must be into
Row is more than 2 samplings for being less than 3 times, such as each code element samples 2.1 times, and 2.2 times, 2.3 times, 2.4 times, 2.5 times, 2.6 is inferior
Deng.
In practical application, due to being nonsynchronous between sampling clock and optical signal pulses, the low and high level sampled is simultaneously
It will not be consistent with raw symbol, only sample frequency could obtain correct solution higher than the frequency of raw symbol.Due to passing
Defeated information is mainly geographical location information, although total symbol will not be very much, in view of the response of light-sensitive device will not be very
Soon, therefore decoded speed is extremely important.
Below to each symbol according to illustrating decoding process for a little higher than 2 times of sample rate, wherein corresponding coding staff
Formula is binary coding shown in table 1.Shown in Fig. 2 b, first row is positioning message, and second row instructs in order to control, and third row is
Sampled data, wherein X, Y1, Y2, Y3 may be 0 or 1, if the sample frequency of signal is slightly higher than 2 in a code-element period
It is secondary, then Y 1 or Y2 must at least one be 0, and Y2 and Y3 must at least one be 1, then decoding rule then referring to table 3
It is shown.It is 1010100110 that symbol can be solved from Fig. 2 b in this way, and corresponding information word is 00010.
Table 3:The decoding process of 2 sampling of binary symbol
When the light-seeking information is to be obtained by binary coding, and the sampling unit is to each of described light-seeking information
Symbol carries out being more than 2 times when being less than 3 samplings, the decoding unit in the sampled data continuous 0 number is less than or
Symbol decoding equal to 3 is 10, and symbol decoding of the number more than or equal to 4 to continuous 0 is 20, to continuous 1 number
Symbol decoding less than or equal to 3 is 11, and symbol decoding of the number more than or equal to 4 to continuous 1 is 21；Wherein, institute
The content for stating binary coding is：0 information bit is encoded to 10,1 information bit bits of coded 01.
Illustrate decoding process for being sampled below according to 4 times to each symbol, wherein corresponding coding mode is 1 institute of table
The binary coding shown.Shown in Fig. 2 c, first row is positioning message, and second row instructs in order to control, and third row is sampled data,
Wherein X expressions may be 0, it is also possible to 1.So decoding rule ginseng is shown in Table 4, and symbol can be solved from Fig. 2 c in this way is
1010100110, corresponding information word is 00010.
Table 4:The decoding process of 4 sampling of binary symbol
When the light-seeking information is to be obtained by binary coding, and the sampling unit is to each of described light-seeking information
When symbol carries out 4 samplings, the decoding unit in the sampled data continuous 0 number be less than or equal to 5 symbol
It is decoded as 10, symbol decoding of the number more than or equal to 7 to continuous 0 is 20, is less than or equal to 5 to continuous 1 number
Symbol decoding be 11, to continuous 1 number more than or equal to 7 symbol decoding be 21；Wherein, the binary coding
Content is：0 information bit is encoded to 10,1 information bit bits of coded 01.
Illustrate decoding process for being sampled below according to a little higher than 2 times to each symbol of 4 primitive encodings, wherein corresponding
Coding mode is four primitive encodings shown in table 2.Shown in Fig. 2 d, first row is positioning message, and second row instructs in order to control, the
Three rows are sampled data, wherein then Y1 or Y2 must at least one be 0, and Y2 and Y3 must at least one be 1, according to table 5
Mode can be decoded into 01010101010100110101, then be reduced into 00010 with four primitive encodings.
Table 5:The decoding process of 2 sampling of quaternary symbol
When the light-seeking information is to be obtained by four primitive encodings, and the sampling unit is to each of described light-seeking information
Symbol carries out being more than 2 times when being less than 3 samplings, the decoding unit in the sampled data continuous 0 number is less than or
Symbol decoding equal to 3 is 10, and symbol decoding of the number more than or equal to 4 to continuous 0 is 20, to continuous 1 number
Symbol decoding less than or equal to 3 is 11, and symbol decoding of the number more than or equal to 4 to continuous 1 is 21；Wherein, institute
The content for stating four primitive encodings is：0 information bit is encoded to 0101,1 information bit bits of coded 0011.
In view of all of the above, it is evident that according to 2 primitive encodings, and decoding speed is most fast when each code element periodic sampling 2 times.
The present embodiment enumerates a kind of decoding process for second of coding mode, shown in Fig. 1 d and Fig. 1 e,
It specifically includes：221 sampling interval of the sampling unit, duration T0 sampled the light-seeking information, obtained sampled data；
The decoding unit 222 is connected with the sampling unit 221, is decoded to the sampled data, and it is fixed to obtain the generation light
The control instruction of position information, i.e. decoding data；The decoding unit to collected in the sampled data be continuously 1 number it is big
When P+2,1 symbol 1 finally acquired is abandoned；After having acquired 1, subsequent acquisition is more than max to the number for being continuously 0<Q,N
>When+1,1 symbol 0 finally acquired is abandoned；Wherein max<Q,N>It indicates to take the maximum in Q and N the two；It is held when collecting
Continue for 1 he number be equal to P+2 and it is follow-up to be continuously 0 he number be Q+1 when, determine+2 symbols of the continuous P 1 and
The gathered data that continuous Q+1 symbol 0 is constituted is decoded as information 1；Other situations acquisition number that a symbol is constituted per (M+N+2)
According to being decoded as information 0；The recovery unit 223 is connected with the decoding unit 222, restores positioning report according to the control instruction
Text, and from it is described positioning message in extract described information sending device geographical location information.Wherein, the processing module 220
The each code element of the light-seeking information is sampled using sampling module 221, in order to keep sampling undistorted, between the sampling time
Every the symbol interval time that be slightly smaller than averaged.According to coding parameter described above, decoding unit is continuously 1 (i.e. to collecting
High level) number be more than p+2 when, abandon that last symbol 1；After having acquired 1, subsequent acquisition is (i.e. low to being continuously 0
Level) number be more than max<q,n>When+1, last that symbol 0, wherein max are abandoned<q,n>Expression takes the big person of its intermediate value；
It collects and is continuously 1 number and is equal to p+2 and follow-up when to be continuously 0 number be q+1, determination (p+2) × 1+ (q+1) × 0
For information word B；Other situations determines that the gathered data that a symbol is constituted per (m+n+2) is decoded as information word A；If the letter
It is 0 to cease member A, then described information member B is 1；If described information member A is 1, described information member B is 0.Described information member A and B with
It is consistent described in described information sending device.Decoding rule ginseng is shown in Table 6.
Table 6：The decoding rule of symbol list sampling
Sample chips distributed intelligence decoding result
Continuously " 1 " number>P+2 abandon below that be close to " 1 "
The number of continuous " 0 " behind " 1 ">max<q,n>+ 1 abandon below that be close to " 0 "
It is p+2 continuous " 1 "+(q+1) be a " 0 " " B "
It is other distribution per (m+n+2 number is decoded into " A "
Specifically, detailed decoding process is referring to shown in Fig. 2 e.In decoder module, 6 register R1~R6 are set, to sampling
Signal carries out displacement storage.When decoding, using R4 registers as reference time benchmark, judge according to symbol value is collected before and after it
Correct value, the data obtained for over-sampling abandon.Temporary information variable V, information word extraction clock C believe for extracting
Breath value.When initialization, each variable is 0.If information A representative informations 0；Information B representative informations 1, decoding result is referring to 7 institute of table
Show, when the V values that the rising edge of C extracts are exactly to decode obtained information element value, then pass through and inquire special message serial code, so that it may
To obtain the content of entire message.As described above, any position in R4 occurs 1100, it is 1 to take result；As long as R4 is appeared in
The position of the last one in 1000 0, just abandon this 0；R4 appears in 111 and just abandons one 1.X indicates uncertain value, it may be possible to
0, it is also possible to 1.
Table 7：A kind of decoding example
Specifically, it is encoded referring to shown in Fig. 1 d, it is assumed that information A representative informations 0；Information B representative informations 1, if adopted
Sample is to continuous 31, then the 3rd symbol 1 abandons, and the symbol that subsequent sampling arrives indicates symbol 110 if it is 0, representative information 1,
Output information 1；If after sampling 1, then continuous acquisition to 20, then the 2nd symbol 0 abandons；Others according to every 2 either
00,01,10,11, representative information 0, output information 0；Here X indicates 0 or 1.Its is decoded to the results are shown in Table shown in 8.
Table 8：Another decoding example
As set forth above, it is possible to effectively solve an average symbol sample it is primary in the case of, accurately extract location information, this
Sample can be that the contradiction solved on smart mobile phone between light-sensitive device sampling rate and light flash frequency lays the foundation.It is logical
Cross modification driver so that smart mobile phone etc. can directly read the data of light-sensitive device to obtain in commercialized terminal
The information such as geographical location are taken to be possibly realized.By HardwareUpgring or additional reception device, it can transmit and acquire and is more, faster
Geographical location information.
The present embodiment also provides a kind of mobile route and consumption navigation terminal, shown in Figure 3, the mobile route consumption
Navigation terminal 300 includes：Information receiving module 310, message processing module 320, information display module 330, communication module 340.
Described information receiving module 310 receives light-seeking information, and decodes geographical location information.
Described information processing module 320 is connected with described information receiving module 310, is realized using the geographical location information
The positioning of itself or/and the calibration of navigation routine；Or utilize coding, location coordinate information or the life in geographical location information
Coordinate information draws sincere call number as information search, searches out self-position or neighbouring commodity or consumption information.
Described information display module 330 is connected with described information processing module 320, shows the self-position or neighbouring
Commodity or consumption information facilitate consumer to select consumption, realize consumption navigation function.
The communication module 340 is connected with described information processing module 330, the commodity for receiving trade company or consumption letter
The map or other relevant informations of breath and route guidance.
In order to further increase the precision of position positioning, the present invention also suggests using determining position on a kind of relatively accurate position
The method of confidence breath.It is not uniform, center in the distribution of horizontal plane since mobile terminal is when by navigator fix ceiling light
Most strong, edge declines rapidly.After being received in information receiver and correctly parsing geographical reported location information text, record light intensity is most strong
Moment can improve precision as position location point.In view of mobile terminal especially smart mobile phone since its posture can be
Variation, therefore, when seeking maximum intensity, needs to reduce disturbance quantity by moving average.Even mobile terminal from
Most strong position is opened, as long as being supplied to navigator fix software, navigator fix software that can still go location information and temporal information
Preferably correction navigation routine.
The present invention receives data using photosensitive sensor, uses new decoding technique, shortens the interval of optical information
Period, to improve the coding frequency of light, solve the problems, such as dodge frequency, it is easy to use, without use camera be aligned light,
Also the problem of camera overexposure is not present, strong antijamming capability is low in energy consumption.The present invention indoors lose completely by signal of communication
Or in the case of shielding, arcuate path navigation and consumption navigation may be implemented.
The present embodiment also provides a kind of maintaining method of information transmitting apparatus, shown in Figure 4, described information sending device
Maintaining method include：Initialize installation is carried out to an information transmitting apparatus powered on apart from interior in effective communication；It is described first
Beginningization setting up procedure includes：
S401 is communicatively coupled with the information transmitting apparatus powered on.
Geographical location information is arranged for described information sending device in S402.
Password is arranged for described information sending device in S403.
Shown in Figure 5, the maintaining method of described information sending device further includes：In effective communication apart from interior at the beginning of one
Information transmitting apparatus after beginningization is modified verification；The modification checking procedure includes：
S501 is communicatively coupled with the information transmitting apparatus powered on.
S502, input password carry out authentication.
S503, by after verification according to the geographical location information of instruction modification described information sending device, or described in reading
The geographical location information of information transmitting apparatus is verified.
The protection domain of the maintaining method of information transmitting apparatus of the present invention is not limited to the present embodiment the step of enumerating
Execute sequence, increase and decrease, step replace realized scheme all the step of the prior art that every principle according to the present invention is done
Including within the scope of the present invention.
The present invention also provides a kind of maintenance system of information transmitting apparatus, the maintenance system of described information sending device can be with
Realize the maintaining method of information transmitting apparatus of the present invention, meanwhile, maintenance can carry out online, and also meaning that can
Into the real time modifying of row information and to be sent to mobile terminal by this maintenance channel, but information of the present invention sends dress
The realization device for the maintaining method set includes but not limited to the structure of the maintenance system for the information transmitting apparatus that the present embodiment is enumerated.
The malformation and replacement for the prior art that every principle according to the present invention is done, are included in protection scope of the present invention
It is interior.
It is shown in Figure 6, it provides a kind of information transmitting apparatus 100, information receiver 200 and information and sends dress
Operative scenario schematic diagram between the maintenance system 500 set.The maintenance system 500 of described information sending device, which is operation, this hair
The system of the maintaining method of the bright information transmitting apparatus can be any intelligent terminal, such as smart mobile phone, computer.
The present invention shortens the gap periods of optical information, improves by using special information coding and decoding technique
The coding frequency of light has reached and has solved the problems, such as to dodge frequency.The present invention have it is low in energy consumption, it is easy to use, without using camera
It is the characteristics of the problem of being directed at light, camera overexposure is also not present, strong antijamming capability, easy to use.It can not only use
In route guidance, consumption navigation can be used for.
In conclusion the present invention effectively overcomes various shortcoming in the prior art and has high industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology can all carry out modifications and changes to above-described embodiment without violating the spirit and scope of the present invention.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should by the present invention claim be covered.
Claims (1)
1. a kind of mobile route and consumption navigation terminal, which is characterized in that the mobile route consumption navigation terminal includes：
Information receiving module receives the light-seeking information, and decodes geographical location information；
Message processing module is connected with described information receiving module, and the positioning of itself is realized using the geographical location information,
Or/and the calibration of navigation routine；Or using coding, location coordinate information or the life coordinate information in geographical location information as
Sincere call number is drawn in information search, searches out self-position or the nearby commodity or consumption information of place trade company；
Information display module is connected with described information processing module, shows the self-position or neighbouring commodity or consumption letter
Breath facilitates consumer to select consumption, realizes consumption navigation function；
Communication module is connected with described information processing module, the commodity or consumption information for receiving trade company and route guidance
Map or other relevant informations；
Wherein, information receiving module includes：
Receiving module receives the light-seeking information of information transmitting apparatus output；The receiving module is light-sensitive device；
Processing module is connected with the receiving module, parses the light-seeking information, obtains the geography of described information sending device
Location information；
The processing module includes：
Sampling unit carries out the sampling more than 2 times to each code element of the light-seeking information, obtains sampled data；
Decoding unit is connected with the sampling unit, is decoded to the sampled data, obtains and generates the light-seeking information
Control instruction；The decoding unit counts in the sampled data continuous 0 number, obtains the first count value；Than
The size of first count value and first threshold determines the number of the continuous 0 corresponding symbol 0；The decoding unit
In the sampled data continuous 1 number is counted, the second count value is obtained；Compare second count value and the second threshold
The size of value determines the number of the continuous 1 corresponding symbol 1；
Recovery unit is connected with the decoding unit, restores positioning message according to the control instruction, and from the positioning message
The geographical location information of middle extraction described information sending device；
When the light-seeking information is to be obtained by binary coding, and the sampling unit is to each code element of the light-seeking information
When carrying out being more than 2 samplings less than 3 times, the decoding unit is less than or equal to 3 in the sampled data continuous 0 number
Symbol decoding be 10, to continuous 0 number more than or equal to 4 symbol decoding be 20, continuous 1 number is less than or
Symbol decoding equal to 3 is 11, and symbol decoding of the number more than or equal to 4 to continuous 1 is 21；Wherein, the binary
The content of coding is：0 information bit is encoded to 10,1 information bit bits of coded 01.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810219956.9A CN108418630A (en) | 2015-11-20 | 2015-12-15 | A kind of information sends, reception device and its maintaining method, system |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510811072 | 2015-11-20 | ||
| CN201510933382.8A CN105577277B (en) | 2015-11-20 | 2015-12-15 | A kind of information transmitting apparatus |
| CN201810219956.9A CN108418630A (en) | 2015-11-20 | 2015-12-15 | A kind of information sends, reception device and its maintaining method, system |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510933382.8A Division CN105577277B (en) | 2015-11-20 | 2015-12-15 | A kind of information transmitting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108418630A true CN108418630A (en) | 2018-08-17 |
Family
ID=55887024
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510933382.8A Expired - Fee Related CN105577277B (en) | 2015-11-20 | 2015-12-15 | A kind of information transmitting apparatus |
| CN201810219956.9A Pending CN108418630A (en) | 2015-11-20 | 2015-12-15 | A kind of information sends, reception device and its maintaining method, system |
| CN201810219970.9A Pending CN108449137A (en) | 2015-11-20 | 2015-12-15 | A kind of information sends, reception device and its maintaining method, system |
| CN201810219958.8A Pending CN108429582A (en) | 2015-11-20 | 2015-12-15 | A kind of information sends, reception device and its maintaining method, system |
| CN201810219971.3A Pending CN108418631A (en) | 2015-11-20 | 2015-12-15 | A kind of information sends, reception device and its maintaining method, system |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510933382.8A Expired - Fee Related CN105577277B (en) | 2015-11-20 | 2015-12-15 | A kind of information transmitting apparatus |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810219970.9A Pending CN108449137A (en) | 2015-11-20 | 2015-12-15 | A kind of information sends, reception device and its maintaining method, system |
| CN201810219958.8A Pending CN108429582A (en) | 2015-11-20 | 2015-12-15 | A kind of information sends, reception device and its maintaining method, system |
| CN201810219971.3A Pending CN108418631A (en) | 2015-11-20 | 2015-12-15 | A kind of information sends, reception device and its maintaining method, system |
Country Status (1)
| Country | Link |
|---|---|
| CN (5) | CN105577277B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6921488B2 (en) * | 2016-06-09 | 2021-08-18 | キヤノン株式会社 | Signal transmission equipment, signal transmission systems and equipment |
| CN105973263A (en) * | 2016-07-15 | 2016-09-28 | 珠海市魅族科技有限公司 | Navigation method and navigation device |
| CN107167138B (en) * | 2017-05-09 | 2019-12-03 | 浙江大学 | A kind of library's intelligence Way guidance system and method |
| CN109932584B (en) * | 2017-12-18 | 2021-09-28 | 中国科学院沈阳自动化研究所 | Multi-element code rapid detection method for malicious user positioning of smart power grid |
| CN109412757B (en) * | 2018-12-07 | 2021-01-22 | 上海爱信诺航芯电子科技有限公司 | Modified Miller self-adaptive decoding method and device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000031911A (en) * | 1998-07-08 | 2000-01-28 | Sony Corp | Optical space transmitting device |
| CN102954793A (en) * | 2011-08-31 | 2013-03-06 | 深圳光启高等理工研究院 | System for positioning public place |
| CN103049870A (en) * | 2012-12-19 | 2013-04-17 | 东莞市东信网络技术有限公司 | Mobile advertisement putting system and method |
| CN103856265A (en) * | 2014-04-02 | 2014-06-11 | 中国人民解放军信息工程大学 | Visible light communication-based positioning system, visible light communication-based positioning device and visible light communication-based positioning method |
| CN104639241A (en) * | 2013-11-14 | 2015-05-20 | 瑞萨电子株式会社 | LED lamp, power-line network system and writing method for location information |
| CN204481818U (en) * | 2015-02-10 | 2015-07-15 | 普天智能照明研究院有限公司 | A kind of indoor positioning device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010239350A (en) * | 2009-03-31 | 2010-10-21 | Comtech 2000:Kk | Visible light communication system, and transmitter and receiver of the same |
| CN103823204B (en) * | 2014-03-10 | 2015-03-11 | 北京理工大学 | Indoor positioning method based on visible light label |
| CN103929718A (en) * | 2014-04-30 | 2014-07-16 | 陈明羲 | Commodity service search and navigation method based on LBS |
-
2015
- 2015-12-15 CN CN201510933382.8A patent/CN105577277B/en not_active Expired - Fee Related
- 2015-12-15 CN CN201810219956.9A patent/CN108418630A/en active Pending
- 2015-12-15 CN CN201810219970.9A patent/CN108449137A/en active Pending
- 2015-12-15 CN CN201810219958.8A patent/CN108429582A/en active Pending
- 2015-12-15 CN CN201810219971.3A patent/CN108418631A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000031911A (en) * | 1998-07-08 | 2000-01-28 | Sony Corp | Optical space transmitting device |
| CN102954793A (en) * | 2011-08-31 | 2013-03-06 | 深圳光启高等理工研究院 | System for positioning public place |
| CN103049870A (en) * | 2012-12-19 | 2013-04-17 | 东莞市东信网络技术有限公司 | Mobile advertisement putting system and method |
| CN104639241A (en) * | 2013-11-14 | 2015-05-20 | 瑞萨电子株式会社 | LED lamp, power-line network system and writing method for location information |
| CN103856265A (en) * | 2014-04-02 | 2014-06-11 | 中国人民解放军信息工程大学 | Visible light communication-based positioning system, visible light communication-based positioning device and visible light communication-based positioning method |
| CN204481818U (en) * | 2015-02-10 | 2015-07-15 | 普天智能照明研究院有限公司 | A kind of indoor positioning device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108418631A (en) | 2018-08-17 |
| CN108429582A (en) | 2018-08-21 |
| CN105577277B (en) | 2018-12-28 |
| CN105577277A (en) | 2016-05-11 |
| CN108449137A (en) | 2018-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105577277B (en) | A kind of information transmitting apparatus | |
| CN104270194A (en) | Visible light indoor positioning method | |
| CN104185141A (en) | Bluetooth beacon device based system and method for detecting stay time of user in area | |
| CN103323683A (en) | Portable electromagnetic wave strength detecting device and method | |
| CN203763821U (en) | Running metering device | |
| CN102915626A (en) | Remote meter reading system, concentrator and time service method | |
| CN104965608A (en) | Space mouse system | |
| CN103427856A (en) | Power consumption control method of GPS receiver | |
| WO2016074220A1 (en) | Data transmission method, wireless transmitting apparatus and wireless receiving apparatus | |
| Wang | Application of Wireless Sensor Network based on LoRa in City Gas Meter Reading. | |
| CN201974204U (en) | Direct-reading gauge head | |
| CN203858657U (en) | Temperature sensing tag based on bidirectional RSSI positioning | |
| CN104833954A (en) | Mine personnel security positioning system | |
| CN204809986U (en) | Transmission line patrols and examines management system based on GPRS wireless transmission | |
| CN204031179U (en) | A kind of Mine Personnel Positioning System based on visible light communication | |
| CN106441289A (en) | LED (light emitting diode) indoor 2D (two-dimensional) positioning method by combining with accelerometer | |
| CN203706308U (en) | Intelligent gas meter with short message communication function | |
| CN201965746U (en) | Remote control encoding circuit based on FPGA (Field Programmable Gate Array) | |
| CN104244177A (en) | Signal illiteracy eliminating system based on received signal strength indications and implementation method of signal illiteracy eliminating system based on received signal strength indications | |
| CN102005115A (en) | Infrared meter reading method | |
| CN208848056U (en) | A kind of UTM-30LX two-dimensional laser radar data collection system based on arm processor | |
| CN102831675A (en) | RTLS (real time positioning system) campus safety management | |
| CN206312355U (en) | A kind of remote wireless transmission equipment | |
| CN204180194U (en) | A kind of turret clock long distance control system | |
| CN205919821U (en) | Road regimen automatic monitoring system based on GPRS |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180817 |