CN104363049A - Identity recognition system and identity recognition method both based on white-light communication - Google Patents
Identity recognition system and identity recognition method both based on white-light communication Download PDFInfo
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- CN104363049A CN104363049A CN201410616973.8A CN201410616973A CN104363049A CN 104363049 A CN104363049 A CN 104363049A CN 201410616973 A CN201410616973 A CN 201410616973A CN 104363049 A CN104363049 A CN 104363049A
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Abstract
The invention discloses an identity recognition system based on white-light communication, and particularly relates to an identity recognition system and an identity recognition method both based on an LED miner's lamp in a mine. The identity recognition system comprises a lithium battery, an emission encoder, a driver, an LED lamp holder, a blue light filter, a photoelectric detector, an amplification filter, a decoder and a communication interface. Hardware equipment of the system includes an LED miner's lamp tag and a white-light card reader. The carry-on LED miner's lamp is utilized, a controller controls the LED lamp holder to transmit identity information according to certain codes by means of a Manchester pulse coding mode, and thus, automatic identity recognition of a miner can be realized. The system has the advantages that additional active or passive identity recognition cards are not needed, identity recognition is realized by existing LED miner's lamps, and the system is easy to upgrade and free from electromagnetic radiation, does not occupy existing communication channels, does not need an additional power source, is not easy to lose, long in service, convenient to carry, low in error rate, high in communication speed and low in power consumption and the like.
Description
Technical field
The present invention relates to identification system, particularly relate to a kind of LED mine lamp identification system based on white light communication and method that are adapted to underground coal mine.
Background technology
Current LED white light development is rapid, at illumination, communication every field R&D-based growth in maturation.LED illumination, compared with other fever type light sources or glow discharge spot lamp, has that capacity usage ratio is high, stability consistency is good, fast response time, energy-conservation, free of contamination New Solid light source.
In the work attendance of coal mine down-hole personnel, tracking, location, the disaster relief, the RFID (identity identification information) that miner carries with blocks topmost acquisition of information and way to manage.At present, personnel in the pit's identification and work attendance depend on the modes such as RFID passive card (radio frequency identification card), the active card of 2.4G to send identity information, receiving transducer at a distance, by electromagnetic wave receiving card information, is reduced into identity id information after signal transacting.This mode is easy to for checking card or leaking the problems such as card, and needs absence from work without reason to carry with extra radio-frequency card, simultaneously because radio-frequency card is always at emitting electromagnetic wave, is also inevitable to the injury of human body.
Summary of the invention
For solving the problems of the technologies described above, therefore, the present invention, on the existing mine lamp basis that must carry of absence from work without reason, does not need to carry any extras, and only increases certain coding and modulation circuit, and then realize LED mine lamp identification.
A kind of identification system based on white light communication of the present invention, comprises white light LEDs mine lamp and white light pick-up probe;
Described white light LEDs mine lamp comprises lithium battery, driver, transmitting encoder and LED lamp holder, and described transmitting encoder is by connection driver, and driver is by connection LED lamp holder, and described lithium battery is that driver, transmitting encoder and LED lamp holder are powered;
Described white light pick-up probe comprises white light receiver, power supply, amplified filter, decoder and communication interface, described white light receiver is by the amplified filter of connection, described amplified filter is by connection decoder, and described decoder is by connection communication interface; Described power supply is white light receiver, amplified filter, decoder are powered.
A kind of personal identification method based on white light communication of the present invention, described transmitting encoder is responsible for No. ID, the miner's identity stored in the nonvolatile memory to read out, Synchronization mode is adopted to output in driver after described transmitting decoding, described driver by ID coded data by the illuminating circuit of high speed MOS control circui white light LEDs, by identity ID by the white light emission after modulated in air dielectric;
The coded light signal that reception white light LEDs mine lamp sends out is responsible for by described white light receiver, and amplified by amplifilter, complete id information by decoder again to read, decoder is connected with peripheral control unit by communication interface, completes the management work of personnel in the pit.
Described transmitting encoder is the single-chip microcomputer of a super low-power consumption, its mode of operation is wake 5 each second up, wake the rear operating time up is 1ms at every turn, go on the air after waking up and send storage unique identities id information in the nonvolatile memory, launching code is encoded into a pulse train, for the high frequency flicker of control LED according to the graceful Chester binary stream of pattern to identity ID.
Described LED lamp holder mainly comprises king light and secondary lamp array and speculum, and the pulse signal after described driver mainly drives king light to glimmer according to certain mode, and secondary lamp is constant.
Described white light receiver comprises arrowband light transmission piece, condenser lens, photoelectric receiving tube; Light signal after ovennodulation is first by arrowband light transmission piece, and it is 400-450nm through wavelength, and through lens focus on photoelectric receiving tube, is converted to current signal.
Described decoder is super low power consuming single chip processor, by the signal of telecommunication after described amplifilter after clock recovery, according to graceful Chester decoding process, the signal recuperation after modulation is become original binary sequence, and converts identity ID card number to.
Compared with prior art beneficial effect of the present invention is:
1, the present invention does not need extra equipment, and only need to increase transmitting encoder and drive circuit on existing LED mine lamp basis, this circuit module has microminiaturized and low-power consumption feature, substantially can not affect original LED illumination function;
2, LED illumination has the advantages such as green energy resource, low-power consumption, pollution-free, long-life, compared with the passive or active card of existing RFID, and the clear superiority such as do not need extra power supply, not easily loss, life-span, easy to carry, the error rate is low, traffic rate is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of the identification system of a kind of white light LEDs communication in the present invention.
In accompanying drawing, the list of parts representated by each label is as follows:
1, white light LEDs mine lamp, 2, white light receiving transducer, 101, lithium battery, 102, driver, 103, transmitting encoder, 104, speculum; 201, blue arrowband light transmission piece, 202, lens, 203, photoelectric receiving tube, 204, power supply, 205, amplifilter, 206, decoder, 207, communication interface.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
As described in Figure 1, a kind of identification system based on white light communication of the present invention, comprise white light LEDs mine lamp 1 and white light pick-up probe 2, white light LEDs mine lamp 1 is explosion-proof type LED mine lamp, the power acquisition lithium battery 101 of non-maintaining 3.7 volts is powered, and luminous power is 3 watts.
White light LEDs mine lamp 1 comprises lithium battery 101, driver 102, transmitting encoder 103 and LED lamp holder 104, transmitting encoder 103 is by connection driver 102, driver 102 is by connection LED lamp holder 104, and lithium battery 1 is powered for driver 102, transmitting encoder 103 and LED lamp holder 104;
White light pick-up probe 2 comprises white light receiver, power supply 204, amplified filter 205, decoder 206 and communication interface 207, white light receiver is by the amplified filter 205 of connection, amplified filter 205 is by connection decoder 206, and decoder 206 is by connection communication interface 207; Power supply 204 is white light receiver, amplified filter 205, decoder 206 are powered.
A kind of personal identification method based on white light communication of the present invention, transmitting encoder 103 is responsible for No. ID, the miner's identity stored in the nonvolatile memory to read out, Synchronization mode is adopted to output in driver after launching decoding, driver 102 by ID coded data by the illuminating circuit of high speed MOS control circui white light LEDs, by identity ID by the white light emission after modulated in air dielectric;
The coded light signal that reception white light LEDs mine lamp sends out is responsible for by white light receiver, and amplified by amplifilter 205, complete id information by decoder 206 again to read, decoder 206 is connected with peripheral control unit by communication interface 207, completes the management work of personnel in the pit.
Transmitting encoder 103 is single-chip microcomputers of a super low-power consumption, its mode of operation is wake 5 each second up, wake the rear operating time up is 1ms at every turn, go on the air after waking up and send storage unique identities id information in the nonvolatile memory, launching code is encoded into a pulse train, for the high frequency flicker of control LED according to the graceful Chester binary stream of pattern to identity ID.
LED lamp holder 104 mainly comprises king light and secondary lamp array and speculum, and the pulse signal after driver 102 mainly drives king light to glimmer according to certain mode, and secondary lamp is constant.
White light receiver comprises arrowband light transmission piece 201, lens 202 and photoelectric receiving tube 203; Light signal after ovennodulation is first by arrowband light transmission piece 201, and it is 400-450nm through wavelength, and focuses on photoelectric receiving tube 203 through lens 202, is converted to current signal.
Decoder 206 is super low power consuming single chip processor, by the signal of telecommunication after amplifilter 205 after clock recovery, according to graceful Chester decoding process, the signal recuperation after modulation is become original binary sequence, and converts identity ID card number to.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be considered as protection scope of the present invention.
Claims (6)
1., based on an identification system for white light communication, it is characterized in that: comprise white light LEDs mine lamp and white light pick-up probe;
Described white light LEDs mine lamp comprises lithium battery, driver, transmitting encoder and LED lamp holder, and described transmitting encoder is by connection driver, and driver is by connection LED lamp holder, and described lithium battery is that driver, transmitting encoder and LED lamp holder are powered;
Described white light pick-up probe comprises white light receiver, power supply, amplified filter, decoder and communication interface, described white light receiver is by the amplified filter of connection, described amplified filter is by connection decoder, and described decoder is by connection communication interface; Described power supply is white light receiver, amplified filter, decoder are powered.
2. as claimed in claim 1 a kind of based on white light communication personal identification method, it is characterized in that: described transmitting encoder is responsible for No. ID, the miner's identity stored in the nonvolatile memory to read out, Synchronization mode is adopted to output in driver after described transmitting decoding, described driver by ID coded data by the illuminating circuit of high speed MOS control circui white light LEDs, by identity ID by the white light emission after modulated in air dielectric;
The coded light signal that reception white light LEDs mine lamp sends out is responsible for by described white light receiver, and amplified by amplifilter, complete id information by decoder again to read, decoder is connected with peripheral control unit by communication interface, completes the management work of personnel in the pit.
3. as claimed in claim 1 a kind of based on white light communication personal identification method, it is characterized in that: described transmitting encoder is the single-chip microcomputer of a super low-power consumption, its mode of operation is wake 5 each second up, wake the rear operating time up is 1ms at every turn, go on the air after waking up and send storage unique identities id information in the nonvolatile memory, launching code is encoded into a pulse train, for the high frequency flicker of control LED according to the graceful Chester binary stream of pattern to identity ID.
4. as claimed in claim 1 a kind of based on white light communication personal identification method, it is characterized in that: described LED lamp holder mainly comprises king light and secondary lamp array and speculum, pulse signal after described driver mainly drives king light to glimmer according to certain mode, and secondary lamp is constant.
5. as claimed in claim 1 a kind of based on white light communication personal identification method, it is characterized in that: described white light receiver comprises arrowband light transmission piece, condenser lens, photoelectric receiving tube; Light signal after ovennodulation is first by arrowband light transmission piece, and it is 400-450nm through wavelength, and through lens focus on photoelectric receiving tube, is converted to current signal.
6. as claimed in claim 1 a kind of based on white light communication personal identification method, it is characterized in that: described decoder is super low power consuming single chip processor, by the signal of telecommunication after described amplifilter after clock recovery, according to graceful Chester decoding process, signal recuperation after modulation is become original binary sequence, and converts identity ID card number to.
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| CN105093375A (en) * | 2015-08-27 | 2015-11-25 | 江苏大学 | Outdoor visible light communication receiving end natural background light filtering method |
| CN108353486A (en) * | 2015-12-01 | 2018-07-31 | 飞利浦照明控股有限公司 | Encode optic modulating device |
| CN108400817A (en) * | 2018-03-19 | 2018-08-14 | 西安电子科技大学 | A kind of visible light communication method for transmitting Manchester's code based on serial ports |
| CN109743108A (en) * | 2019-01-21 | 2019-05-10 | 徐州智谷光频产业研究院有限公司 | A kind of identification and positioning system and method based on the communication of wireless optical frequency |
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Effective date of registration: 20230831 Address after: Room 109, Main Building of Yangquan Industrial Technology Research Institute, Dacun Village, Shaping Street, Yangquan City, Shanxi Province 045000 Patentee after: Shanxi Yangpu Optoelectronic Technology Co.,Ltd. Address before: Taiyuan University of science and technology Patentee before: TAIYUAN University OF SCIENCE AND TECHNOLOGY |