CN103729895A - Method, device and system for awakening electronic tag - Google Patents
Method, device and system for awakening electronic tag Download PDFInfo
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- CN103729895A CN103729895A CN201310439992.3A CN201310439992A CN103729895A CN 103729895 A CN103729895 A CN 103729895A CN 201310439992 A CN201310439992 A CN 201310439992A CN 103729895 A CN103729895 A CN 103729895A
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Abstract
The invention discloses a method for awakening an electronic tag. The method comprises the steps that low-frequency signals containing awakening information are generated, and the low-frequency signals are modulated into radio-frequency signals; the radio-frequency signals are transmitted to a radio-frequency awakening signal receiving device, so that the radio-frequency awakening signal receiving device can obtain the awakening information through demodulation and awaken the electronic tag when the awakening information is matched with a preset information code. The embodiment of the invention further provides a corresponding device and system. According to the technical scheme, the preset information code is stored in the electronic tag, a transmitting terminal modulates the low-frequency signals containing the awakening information into the radio-frequency signals and transmits the radio-frequency signals to the electronic tag, and when the awakening information is matched with the information code, the electronic tag is awaken. Accordingly, the electronic tag can be prevented from being awakened mistakenly, the interference resistance of the electronic tag is improved, and the service life of the electronic tag is prolonged.
Description
Technical field
The present invention relates to intelligent transport technology field, be specifically related to a kind of method, Apparatus and system that wakes electronic tag up.
Background technology
Intelligent transportation (Intelligent Transportation System, ITS) is based on hyundai electronics infotech, towards the service system of communications and transportation, is the developing direction of future transportation system.Electronic non-parking automatic charging (Electronic Toll Collection, ETC) system is the important component part of ITS.ETC system is mainly comprised of background system, driveway controller, roadside unit (Road Side Unit, RSU) equipment and board units (On Board Unit, OBU) equipment etc.OBU is called again electronic tag, wherein stores the contents such as vehicle identity information and attribute information.RSU and OBU adopt DSRC(Dedicated Short Range Communication, Dedicated Short Range Communications) technology carries out communication, realizes the services such as testing vehicle register identification and electronic charging.
Existing electronic tag, generally adopts dry cell power supply.In order to reduce battery power consumption, the electronic tag most of the time is in low-power consumption deep sleep state; While working, OBU need adopt corresponding arouse machine processed to wake electronic tag up.The quality of arouse machine processed has determined serviceability and the battery service life of electronic tag.The arouse machine processed adopting at present is conventionally that radio-frequency carrier detects wake-up mode, when the reception of electronic tag and detecting unit receive strength of carrier and surpass the radio-frequency carrier of threshold value, just sends trigger pip, wakes whole electronic tag up.But the sensitivity of this wake-up mode is lower, is subject to outside strong signal interference and causes false wake-up, thereby can lower battery.
Summary of the invention
The embodiment of the present invention provides a kind of method, Apparatus and system that wakes electronic tag up, easily causes the technical matters of false wake-up to solve existing electronic tag arouse machine processed.
First aspect present invention provides a kind of method of waking electronic tag up, comprising: generate the low frequency signal that comprises the information of waking up, and described low frequency signal is modulated to radiofrequency signal; Launch described radiofrequency signal to radio-frequency wakeup signal receiving device, so that described radio-frequency wakeup signal receiving device wakes information described in obtaining by rectification up and wakes electronic tag when information is mated with default information code up described waking up.
Optionally, the low frequency signal that described generation comprises the information of waking up comprises: generate initial low frequency signal; And, generate the information of waking up; According to the described information of waking up, described low frequency signal is modulated, obtained the low frequency signal that comprises the information of waking up.
Second aspect present invention provides a kind of method of waking electronic tag up, comprising: the radiofrequency signal of received RF wake-up signal generating means transmitting; Described radiofrequency signal demodulation is made as to the low frequency signal that comprises the information of waking up; Described in obtaining, wake information up, and relatively, wake information up and whether mate with default information code; If coupling, exports trigger pip to wake electronic tag up.
Optionally, described by described radiofrequency signal demodulation be made as comprise the information of waking up low frequency signal before also comprise: described radiofrequency signal is carried out to filtering processing.
Optionally, described in obtaining described in, waking information up comprises: described low frequency signal is amplified and Shape correction; Described low frequency signal through amplification and Shape correction is carried out to rectification, obtain the information of waking up in described low frequency signal.
Third aspect present invention provides a kind of radio-frequency wakeup signal generation apparatus, comprising: low frequency modulations ripple generating unit, for generating the low frequency signal that comprises the information of waking up; Radio frequency signal generation unit, for generating initial radiofrequency signal; Radio-frequency modulator, for according to described low frequency signal, described initial radiofrequency signal being modulated, obtains the radiofrequency signal that comprises the information of waking up; Radio-frequency antenna, for launching described radiofrequency signal to radio-frequency wakeup signal receiving device, so that described radio-frequency wakeup signal receiving device wakes information described in obtaining by rectification up and wakes electronic tag when information is mated with default information code up described waking up.
Optionally, described low frequency modulations ripple generating unit further comprises: low frequency signal generation subelement, for generating initial low frequency signal; Information code generation subelement, for generating the information of waking up; Low frequency modulations device, modulates described low frequency signal for waking information described in basis up, obtains the low frequency signal that comprises the information of waking up.
Fourth aspect present invention provides a kind of radio-frequency wakeup signal receiving device, comprising: radio-frequency antenna, for the radiofrequency signal of received RF wake-up signal generating means transmitting; Radio-frequency (RF) demodulator, for being made as by described radiofrequency signal demodulation the low frequency signal that comprises the information of waking up; Whether low-frequency signal processing unit, for obtaining the information of waking up of described low frequency signal, and wake information up and mate with default information code relatively, if coupling is exported institute's trigger pip to wake electronic tag up.
Optionally, described radio-frequency wakeup signal receiving device also comprises: radio-frequency filter, for the radiofrequency signal that described radio-frequency antenna is received, carry out filtering processing, and the radiofrequency signal after filtering is processed sends to described demodulation unit.
Optionally, described low-frequency signal processing unit further comprises: low-frequency amplifier, for described low frequency signal is amplified and Shape correction; Low frequency detuner, carries out low frequency rectification for the described low frequency signal to through amplification and Shape correction, obtains the information of waking up in described low frequency signal; Storer, for storing default information code; Whether comparer, mate with default information code for waking information up described in relatively, if coupling is exported trigger pip to wake described electronic tag up.
Fifth aspect present invention provides a kind of MPV (Multi-Purpose Vehicle) microscope carrier, comprise the first electronic tag and the second electronic tag, the radio-frequency wakeup signal generation apparatus providing as third aspect present invention is provided described the first electronic tag, and the radio-frequency wakeup signal receiving device providing as fourth aspect present invention is provided described the second electronic tag; Described the first electronic tag is specially Vehicle mounted station main frame, and described the second electronic tag is specially Anti-scrape label; Or described the first electronic tag is specially Anti-scrape label, described the second electronic tag is specially Vehicle mounted station main frame.
Optionally, the radio-frequency wakeup signal receiving device providing as fourth aspect present invention is also provided described the first electronic tag, and the radio-frequency wakeup signal generation apparatus providing as third aspect present invention is also provided described the second electronic tag.
Sixth aspect present invention provides a kind of ETC system, comprises roadside unit equipment, and the MPV (Multi-Purpose Vehicle) microscope carrier providing as fifth aspect present invention is also provided.
Optionally, the radio-frequency wakeup signal generation apparatus providing as third aspect present invention is provided for described roadside unit equipment.
The embodiment of the present invention adopts stores default information code on electronic tag, transmitting terminal is modulated to emission of radio frequency signals to electronic tag by the low frequency signal that comprises the information of waking up, when waking information and information code coupling up, just wake the technical scheme of electronic tag up, can prevent that electronic tag is by false wake-up, thereby, improved the anti-tampering performance and used life of electronic tag.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of the method for waking electronic tag up that provides of one embodiment of the invention;
Fig. 2 is the process flow diagram of the method for waking electronic tag up that provides of another embodiment of the present invention;
Fig. 3 is the schematic diagram of the radio-frequency wakeup signal generation apparatus that provides of the embodiment of the present invention;
Fig. 4 is the schematic diagram of the radio-frequency wakeup signal receiving device that provides of the embodiment of the present invention;
Fig. 5 is the schematic diagram of the MPV (Multi-Purpose Vehicle) microscope carrier that provides of the embodiment of the present invention;
Fig. 6 is the workflow diagram of the MPV (Multi-Purpose Vehicle) microscope carrier that provides of the embodiment of the present invention;
Fig. 7 is the schematic diagram of the ETC system that provides of the embodiment of the present invention;
Fig. 8 is the schematic diagram of MPV (Multi-Purpose Vehicle) microscope carrier in application scenarios example one of the present invention;
Fig. 9 is the schematic diagram of MPV (Multi-Purpose Vehicle) microscope carrier in application scenarios example two of the present invention;
Figure 10 is the schematic diagram of ETC system in application scenarios example three of the present invention;
Figure 11 is the schematic diagram of ETC system in application scenarios example four of the present invention.
Embodiment
The embodiment of the present invention provides a kind of method of waking electronic tag up, can solve the technical matters that existing electronic tag arouse machine processed easily causes false wake-up.The embodiment of the present invention also provides corresponding device and system.In order to make those skilled in the art person understand better the present invention program, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the embodiment of a part of the present invention, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, should belong to the scope of protection of the invention.
To facilitate understanding of the present embodiment of the invention, first at this, introduce the several key elements that can introduce in embodiment of the present invention description.The said electronic tag of the embodiment of the present invention is a concept with larger implication, and it comprises OBU, and in other words, OBU is a kind of or a part of of electronic tag.In the embodiment of the present invention, electronic tag is divided into two parts, is called the first electronic tag and the second electronic tag.Wherein, the first electronic tag is born the communication interaction function with RSU, is equivalent to said OBU; In the second electronic tag, store the contents such as vehicle identity information and attribute information, be called again Anti-scrape label.Conventionally, pass through installed MPV (Multi-Purpose Vehicle) microscope carrier system and realize electronic label function on existing vehicle, described MPV (Multi-Purpose Vehicle) microscope carrier system comprises: Vehicle mounted station main frame and Anti-scrape label, wherein, Vehicle mounted station main frame is equivalent to described OBU.Described Anti-scrape label can be fixed on vehicle, for example, paste on windshield.Described Vehicle mounted station main frame can be mounted in the dismantled and assembled equipment on erecting frame, also can as Anti-scrape label, be fixed in vehicle windscreen.
Embodiment mono-,
Please refer to Fig. 1, the embodiment of the present invention provides a kind of method of waking electronic tag up, comprising:
110, generate the low frequency signal that comprises the information of waking up, and described low frequency signal is modulated to radiofrequency signal.
120, launch described radiofrequency signal to radio-frequency wakeup signal receiving device, so that described radio-frequency wakeup signal receiving device wakes information described in obtaining by rectification up and wakes electronic tag when information is mated with default information code up described waking up.
In some embodiments, the executive agent of embodiment of the present invention method, namely emission of radio frequency signals end, can be the first described electronic tag, Vehicle mounted station main frame for example, the object waking up can be the second electronic tag, for example Anti-scrape label.
For application is convenient, consider, Anti-scrape label and Vehicle mounted station main frame can not have physical connection, communicate by letter between the two by radiofrequency signal.In a kind of embodiment, Anti-scrape label can adopt the radiofrequency signal of 2.4GHZ to communicate by letter with Vehicle mounted station main frame, and according to national standard, Vehicle mounted station main frame generally adopts the radiofrequency signal of 5.8GHZ to communicate by letter with RSU devices communicating, thereby, can avoid phase mutual interference.
Concrete, the emission of radio frequency signals end as method executive agent in the present embodiment can be to install or integrated radio-frequency wakeup signal generation apparatus on described Vehicle mounted station main frame.Accordingly, in Anti-scrape label, need to install or be integrated with radio-frequency wakeup signal receiving device.In the present embodiment, need to preset an information code and be stored in radio-frequency wakeup signal receiving device.This information code is used for identifying this Anti-scrape label, can be specifically identity identification information or the out of Memory of Anti-scrape label.
In the time of need to waking Anti-scrape label up, radio-frequency wakeup signal generation apparatus can generate one and wake information up, and this wakes information up and should match with described default information code, and in a kind of embodiment of simplification, said what match can be identical.Then, described radio-frequency wakeup signal generation apparatus generates an initial low frequency signal, and this initial low frequency signal can be that dutycycle is 50% clock pulse signal; Then, according to the described information of waking up, this initial low frequency signal is modulated, described in being comprised, waken up the low frequency signal of information; Meanwhile, described radio-frequency wakeup signal generation apparatus also generates an initial radiofrequency signal, and this initial radiofrequency signal can be not modulated pure cosine radio frequency continuous wave signal.Again then, utilize described low frequency signal to modulate described initial radiofrequency signal, amplitude modulation(PAM) for example, thus obtain the radiofrequency signal that comprises the information of waking up.This radiofrequency signal that comprises the information of waking up also can be called radio-frequency wakeup signal.Finally, described radiofrequency signal is launched by radio-frequency antenna.
Radio-frequency wakeup signal receiving device receives after described radiofrequency signal, described radiofrequency signal is carried out to the processing such as rectification, demodulate the low frequency signal that comprises the information of waking up, and wake information up described in obtaining from low frequency signal, then information and default information code comparison will be waken up, when both couplings are for example consistent, radio-frequency wakeup signal receiving device just sends a trigger pip to main control unit or the MCU of Anti-scrape label, to wake whole Anti-scrape label up.Described trigger pip can be a lasting high level signal or any other forms of preset signals.
In the present embodiment, described low frequency signal generally refer to frequency at 9KHz to the clock pulse signal between 500KHz, its frequency representative value can be 125KHz.Described radiofrequency signal generally refers to the radiofrequency signal of frequency more than 30MHz, for example radiofrequency signal of 2.4GHz.
Above, take executive agent as Vehicle mounted station main frame, waking object up is that Anti-scrape label is that example is illustrated embodiment of the present invention method.But it should be noted that, in some other embodiment, the executive agent of embodiment of the present invention method can be also Anti-scrape label, and the object waking up can be Vehicle mounted station main frame.Wake flow process and mentioned above similar up, repeat no more herein.
To sum up, the embodiment of the present invention provides a kind of method of waking electronic tag up, the method adopts stores default information code on electronic tag, transmitting terminal is modulated to emission of radio frequency signals to electronic tag by the low frequency signal that comprises the information of waking up, when waking information and information code coupling up, just wake the technical scheme of electronic tag up, can prevent that electronic tag is by false wake-up, thereby, interference free performance and the serviceable life of having improved electronic tag.And, due to the lifting of interference free performance, can obviously increase and wake distance up, improve and wake sensitivity up.
It is to be noted, if adopted at the transmitting terminal low frequency signal that directly transmission comprises the information of waking up to Anti-scrape label, to wake the technical scheme of Anti-scrape label up when the information of waking up is consistent with information code,, characteristic due to low frequency signal itself, need to adopt the antenna of large-size, for example length and width height is the antenna of 150mm*26mm*12mm, could realize preferably the transmitting-receiving of low frequency signal.And in the embodiment of the present invention, employing is modulated to low frequency signal the technical scheme of radio signal transmission, only need to adopt the antenna of reduced size, for example length and width height is the antenna of 1.6mm*3.2mm*1.3mm, can realize preferably the transmitting-receiving of radiofrequency signal, thereby, can significantly reduce the size of Anti-scrape label, realize the microminiaturization of Anti-scrape label.
Embodiment bis-,
Please refer to Fig. 2, the embodiment of the present invention provides a kind of method of waking electronic tag up, comprising:
210, the radiofrequency signal of received RF wake-up signal generating means transmitting;
Receive after radiofrequency signal, can first to radiofrequency signal, carry out filtering processing, with the undesired signal beyond filtering working frequency range, then, then carry out subsequent treatment.
220, described radiofrequency signal demodulation is made as to the low frequency signal that comprises the information of waking up;
230, wake information up described in obtaining, and relatively, wake information up and whether mate with default information code;
Wherein, the step of obtaining the information of waking up described in can comprise: described low frequency signal is amplified and Shape correction; Described low frequency signal through amplification and Shape correction is carried out to rectification, thereby obtain the information of waking up in described low frequency signal.
If 240 couplings, export trigger pip to wake described electronic tag up.
In some embodiments, the executive agent of embodiment of the present invention method, namely radiofrequency signal receiving end, can be the second described electronic tag, for example Anti-scrape label.For application is convenient, consider, Anti-scrape label and Vehicle mounted station main frame can not have physical connection, communicate by letter between the two by radiofrequency signal.In a kind of embodiment, Anti-scrape label can adopt the radiofrequency signal of 2.4GHZ to communicate by letter with Vehicle mounted station main frame, and according to national standard, Vehicle mounted station main frame generally adopts the radiofrequency signal of 5.8GHZ to communicate by letter with RSU devices communicating, thereby, can avoid phase mutual interference.
Concrete, the radiofrequency signal receiving end as method executive agent in the present embodiment can be to install or integrated radio-frequency wakeup signal receiving device on described Anti-scrape label.In the present embodiment, need to preset an information code and be stored in radio-frequency wakeup signal receiving device.This information code is used for identifying this Anti-scrape label, can be specifically identity identification information or the out of Memory of Anti-scrape label.
In the time of need to waking Anti-scrape label up, radio-frequency wakeup signal generation apparatus can generate one and wake information up, and this wakes information up and should match with described default information code, and in a kind of embodiment of simplification, said what match can be identical.Then, described radio-frequency wakeup signal generation apparatus generates an initial low frequency signal, and this initial low frequency signal can be that dutycycle is 50% clock pulse signal; Then, according to the described information of waking up, this initial low frequency signal is modulated, described in being comprised, waken up the low frequency signal of information; Meanwhile, described radio-frequency wakeup signal generation apparatus also generates an initial radiofrequency signal, and this initial radiofrequency signal can be not have modulated pure cosine radio frequency continuous wave signal.Again then, utilize described low frequency signal to modulate described initial radiofrequency signal, amplitude modulation(PAM) for example, thus obtain the radiofrequency signal that comprises the information of waking up.This radiofrequency signal that comprises the information of waking up also can be called radio-frequency wakeup signal.Finally, described radiofrequency signal is launched by radio-frequency antenna.
Radio-frequency wakeup signal receiving device receives after described radiofrequency signal, can first to radiofrequency signal, carry out filtering processing, with the undesired signal beyond filtering working frequency range; Then, the described radiofrequency signal after filtering is processed carry out radio demodulating system, demodulates the low frequency signal that comprises the information of waking up; Low frequency signal is amplified and Shape correction, then carry out low frequency rectification, to obtain the information of waking up in low frequency signal; Then will wake information and default information code comparison up, when both couplings are for example consistent, radio-frequency wakeup signal receiving device just sends a trigger pip to main control unit or the MCU of Anti-scrape label, to wake whole Anti-scrape label up.Described trigger pip can be a lasting high level signal or any other forms of preset signals.
In the present embodiment, described low frequency signal generally refer to frequency at 9KHz to the clock pulse signal between 500KHz, its frequency representative value can be 125KHz.Described radiofrequency signal generally refers to the radiofrequency signal of frequency more than 30MHz, for example radiofrequency signal of 2.4GHz.
Above, take executive agent is illustrated embodiment of the present invention method as Anti-scrape label as example.But it should be noted that, in some other embodiment, the executive agent of embodiment of the present invention method can be also Vehicle mounted station main frame, and emission of radio frequency signals end can be Anti-scrape label; Wake flow process and mentioned above similar up, repeat no more herein.
To sum up, the embodiment of the present invention provides a kind of method of waking electronic tag up, the method adopts stores default information code on electronic tag, transmitting terminal is modulated to emission of radio frequency signals to electronic tag by the low frequency signal that comprises the information of waking up, when waking information and information code coupling up, just wake the technical scheme of electronic tag up, can prevent that electronic tag is by false wake-up, thereby, interference free performance and the serviceable life of having improved electronic tag.And, due to the lifting of interference free performance, can obviously increase and wake distance up, improve and wake sensitivity up.
It is to be noted, if adopted at the transmitting terminal low frequency signal that directly transmission comprises the information of waking up to Anti-scrape label, to wake the technical scheme of Anti-scrape label up when the information of waking up is consistent with information code,, characteristic due to low frequency signal itself, need to adopt the antenna of large-size, for example length and width height is the antenna of 150mm*26mm*12mm, could realize preferably the transmitting-receiving of low frequency signal.And in the embodiment of the present invention, employing is modulated to low frequency signal the technical scheme of radio signal transmission, only need to adopt the antenna of reduced size, for example length and width height is the antenna of 1.6mm*3.2mm*1.3mm, can realize preferably the transmitting-receiving of radiofrequency signal, thereby, can significantly reduce the size of Anti-scrape label, realize the microminiaturization of Anti-scrape label.
Embodiment tri-,
Please refer to Fig. 3, the embodiment of the present invention provides a kind of radio-frequency wakeup signal generation apparatus.This device comprises:
Low frequency (LF) modulating wave generating unit 310, for generating the low frequency signal that comprises the information of waking up;
Radio frequency (RF) signal generating unit 320, for generating initial radiofrequency signal;
Radio-frequency modulator 330, for according to described low frequency signal, described initial radiofrequency signal being modulated, obtains the radiofrequency signal that comprises the information of waking up;
Radio-frequency antenna 340, for launching described radiofrequency signal to radio-frequency wakeup signal receiving device, so that described radio-frequency wakeup signal receiving device wakes information described in obtaining by rectification up and wakes electronic tag when information is mated with default information code up described waking up.
The present embodiment device generates and wakes up after information, first the information of waking up is modulated in low frequency signal, then low frequency signal is modulated in radiofrequency signal, by radio-frequency antenna, launches.This radiofrequency signal that comprises the information of waking up also can be called radio-frequency wakeup signal.
Below above-mentioned unit assembly is described further:
1, RF signal generating unit 320:
This RF signal generating unit 320 is for generation of initial radiofrequency signal.This initial radiofrequency signal can be not modulated pure cosine radio frequency continuous wave signal.The frequency of radiofrequency signal, more than 30MHz, more than 1MHz, in a kind of embodiment, can be generally 2.4GHz especially again.Existing radio system chip generally can be supported to launch radio frequency continuous wave signal, and in the present embodiment, this RF signal generating unit 320 can adopt the chips such as existing nRF24LE1 or n RF905.
2, low frequency (LF) modulating wave generating unit 310:
This low frequency modulations ripple generating unit 310 further comprises:
Low frequency (LF) signal generation subelement, for generating initial low frequency signal; This initial low frequency signal can be that dutycycle is 50% clock pulse signal, and signal frequency can be at 9KHz between 500KHz, and its representative value can be 125KHz.
Information code generation subelement, for generating the information of waking up; This wakes information up is a segment information code, and the code speed of this information code is generally less than 10Kb/S, and representative value is 2Kb/s; The frequency of General Requirements low frequency signal is 20 to 100 times of information code speed.
Low frequency (LF) modulator, modulates described low frequency signal for waking information described in basis up, obtains the low frequency signal that comprises the information of waking up.LF modulator can be in series with door and not gate by one.The signal that LF signal generation subelement and information code generation subelement produce respectively synthesizes low frequency modulated carrier through one with door, that is, and and the said low frequency signal that comprises the information of waking up.The signal of the single spin-echo of the low frequency signal that described not gate is exported another road and comprised the information of waking up, to assist to control radio frequency modulator 330.
In some other embodiments, LF modulating wave generating unit 310 can be microprocessor (MCU), and MCU can realize above-mentioned functions by software programming.
3, radio frequency (RF) modulator 330:
In a kind of embodiment, radio frequency modulator 330 can be comprised of a high-isolation single-pole double throw RF switch and 50 ohm of radio frequency absorption resistance.The low and high level of the LF modulating wave that can export by LF modulating wave generating unit 310 is controlled radio-frequency (RF) switch, and radio-frequency (RF) switch is got to 50 ohm load port or antenna ports, so that radio frequency modulator produces rf modulated signal, by aerial radiation, arrives in the air.The uPG2163T5N of the optional Renesas of radio-frequency (RF) switch model or sky3351-378LF of Skyworks etc.General radio-frequency (RF) switch control signal needs two-way single spin-echo signal to control, so require the low frequency signal of LF modulating wave generating unit output two-way single spin-echo.
4, radio-frequency antenna 340:
This radio-frequency antenna can be the antenna of the high 1.6mm*3.2mm*1.3mm of being of a size of of length and width.
Above, the embodiment of the present invention provides a kind of radio-frequency wakeup signal generation apparatus.In some embodiments, the first electronic tag can be installed or be integrated in to this generating means for example on Vehicle mounted station main frame, especially, on the included ETC vehicle module of Vehicle mounted station main frame, is used for launching radio-frequency wakeup signal to wake Anti-scrape label up.In some other embodiment, the second electronics electronic tag also can be installed or be integrated in to this generating means for example in Anti-scrape label, is used for launching radio-frequency wakeup signal to wake Vehicle mounted station main frame up.In other embodiment, this generating means also can be installed or be integrated in roadside unit (RSU) equipment, is used for launching radio-frequency wakeup signal to wake OBU equipment up.More detailed description about the present embodiment device please refer to the content that embodiment mono-records.
To sum up, the embodiment of the present invention provides a kind of radio-frequency wakeup signal generation apparatus, this device can be modulated to emission of radio frequency signals to electronic tag by the low frequency signal that comprises the information of waking up, and on electronic tag, store default information code, when waking information and information code coupling up, electronic tag is waken up, thereby, can prevent that electronic tag is by false wake-up, and then, interference free performance and the serviceable life of having improved electronic tag.And, due to the lifting of interference free performance, can obviously increase and wake distance up, improve and wake sensitivity up.
It is to be noted, if adopted at the transmitting terminal low frequency signal that directly transmission comprises the information of waking up to Anti-scrape label, to wake the technical scheme of Anti-scrape label up when the information of waking up is consistent with information code,, characteristic due to low frequency signal itself, need to adopt the antenna of large-size, for example length and width height is the antenna of 150mm*26mm*12mm, could realize preferably the transmitting-receiving of low frequency signal.And in the embodiment of the present invention, employing is modulated to low frequency signal the technical scheme of radio signal transmission, only need to adopt the antenna of reduced size, for example length and width height is the antenna of 1.6mm*3.2mm*1.3mm, can realize preferably the transmitting-receiving of radiofrequency signal, thereby, can significantly reduce the size of Anti-scrape label, realize the microminiaturization of Anti-scrape label.
Embodiment tetra-,
Please refer to Fig. 4, the embodiment of the present invention provides a kind of radio-frequency wakeup signal receiving device.This device comprises:
Radio-frequency antenna 410, for the radiofrequency signal of received RF wake-up signal generating means transmitting;
Radio-frequency (RF) demodulator 420, for being made as by described radiofrequency signal demodulation the low frequency signal that comprises the information of waking up;
Whether low-frequency signal processing unit 430, for obtaining the information of waking up of described low frequency signal, and wake information up and mate with default information code relatively, if coupling is exported institute's trigger pip to wake electronic tag up.
Optionally, described in following embodiment, install and can also comprise:
Radio-frequency filter 440, carries out filtering processing for the radiofrequency signal that described radio-frequency antenna is received, so that by the undesired signal filtering beyond working frequency range, then, the radiofrequency signal after filtering is processed sends to described demodulation unit.In practical application, can be according to real work frequency range, selection low pass, band lead to or Hi-pass filter comes filtering to suppress on-air radio undesired signal.
The present embodiment device is received after radio-frequency information, first by radio-frequency (RF) demodulator 420, carries out the first rectification, obtains the low frequency signal that comprises the information of waking up; Then, in low-frequency signal processing unit 430, amplify and Shape correction after carry out rectification for the second time, obtain waking up information; Again then, relatively wake information and default information code up, if both couplings are for example consistent,, output trigger pip, wakes electronic tag up.Electronic tag after waking up and other electronic tag just can carry out wireless data communications.
Below above-mentioned unit assembly is described further:
1, radio-frequency antenna 410:
This radio-frequency antenna can be the antenna of the high 1.6mm*3.2mm*1.3mm of being of a size of of length and width.
2, radio frequency (RF) detuner 420:
RF detuner 420 is processed for radio frequency wake-up signal being carried out to rectification (detection).RF detuner can be selected HSMS-2850 or the HSMS-2860 series pipe of Avago.
3, low-frequency signal processing unit 430:
This low-frequency signal processing unit 430 may further include:
Low-frequency amplifier, for amplifying and Shape correction described low frequency signal; Can also carry out frequency selects to process.
Low frequency (LF) detuner, carries out low frequency rectification for the described low frequency signal to through amplification and Shape correction, obtains the information of waking up in described low frequency signal;
Storer, for storing default information code;
Whether comparer, mate with default information code for waking information up described in relatively, if coupling is exported trigger pip to wake described electronic tag up.Described coupling can be identical or consistent.Described trigger pip can be a lasting high level signal or any other forms of preset signals.
Above, the embodiment of the present invention provides a kind of radio-frequency wakeup signal receiving device.In some embodiments, this receiving trap can be installed or integrated the second electronic tag for example on Anti-scrape label.Adopt the needed energy consumption of Anti-scrape label of this device extremely low, only need 1uA.In some other embodiment, the first electronic tag also can be installed or be integrated in to this receiving trap for example on Vehicle mounted station main frame, especially on the included ETC vehicle module of Vehicle mounted station main frame.More detailed description about the present embodiment device please refer to the content that embodiment bis-records.
To sum up, the embodiment of the present invention provides a kind of radio-frequency wakeup signal receiving device, on this device, store default information code, can receive also demodulation and make the information of waking up in the radiofrequency signal of receiving, when waking information and information code coupling up, wake electronic tag up, thereby, can prevent that electronic tag is by false wake-up, and then, interference free performance and the serviceable life of having improved electronic tag.And, due to the lifting of interference free performance, can obviously increase and wake distance up, improve and wake sensitivity up.Detect wake-up mode with existing radio-frequency carrier and compare, wake sensitivity up and can, from-bring up to-70dBm of 40dBm, wake distance up and can bring up to from 10 meters of left and right tens meters of rice even up to a hundred.
It is to be noted, if adopted at the transmitting terminal low frequency signal that directly transmission comprises the information of waking up to Anti-scrape label, to wake the technical scheme of Anti-scrape label up when the information of waking up is consistent with information code,, characteristic due to low frequency signal itself, need to adopt the antenna of large-size, for example length and width height is the antenna of 150mm*26mm*12mm, could realize preferably the transmitting-receiving of low frequency signal.And in the embodiment of the present invention, employing is modulated to low frequency signal the technical scheme of radio signal transmission, only need to adopt the antenna of reduced size, for example length and width height is the antenna of 1.6mm*3.2mm*1.3mm, can realize preferably the transmitting-receiving of radiofrequency signal, thereby, can significantly reduce the size of Anti-scrape label, realize the microminiaturization of Anti-scrape label.
Embodiment five,
Please refer to Fig. 5, the embodiment of the present invention provides a kind of MPV (Multi-Purpose Vehicle) microscope carrier, and this MPV (Multi-Purpose Vehicle) microscope carrier comprises the first electronic tag 510 and the second electronic tag 520.Described the first electronic tag 510 comprises the radio-frequency wakeup signal generation apparatus of describing as embodiment tri-, and described the second electronic tag 520 comprises the radio-frequency wakeup signal receiving device of describing as embodiment tetra-.In a kind of embodiment, described the first electronic tag 510 is specially Vehicle mounted station main frame, and described the second electronic tag 520 is specially Anti-scrape label.
Described MPV (Multi-Purpose Vehicle) microscope carrier can also comprise erecting frame, and erecting frame can be fixed on vehicle.Described Vehicle mounted station main frame can be arranged on erecting frame and detachable, so that use flexibly and be easy to carry.Described Anti-scrape label can be close on windshield and be non-dismountable, to guarantee not to be modified replacement, signal uniqueness while guaranteeing ETC transaction in information of vehicles and the Anti-scrape label bound, once and can described Anti-scrape label be dismantled by force by design, send immediately signal notice Vehicle mounted station main frame.Optionally, Vehicle mounted station main frame also can fixedly be close on windshield and be non-dismountable.
Described Vehicle mounted station main frame specifically can comprise: main control module, and be connected with main control module respectively: display module, loudspeaker, USB interface, receiver J-Horner, rf input interface, power module, GPS locating module, wireless communication module and ETC vehicle module.The radio-frequency wakeup signal generation apparatus that described Vehicle mounted station main frame comprises specifically can be integrated on described ETC vehicle module.
The radio-frequency wakeup signal receiving device that described Anti-scrape label comprises, owing to being waken up by radiofrequency signal, therefore can adopt the small size antenna of 1.6mm*3.2mm*1.3mm dimensions, and assurance Anti-scrape label can be accomplished small and exquisite.
Below, by reference to the accompanying drawings 6, the workflow of the MPV (Multi-Purpose Vehicle) microscope carrier of the present embodiment is briefly described:
First, when Vehicle mounted station main frame need to carry out data communication with Anti-scrape label, first by its inner radio-frequency wakeup signal generation apparatus, generate with the radiofrequency signal the transmitting that wake information up.(this radiofrequency signal that comprises the information of waking up also can be called radio-frequency wakeup signal)
Secondly, on Anti-scrape label, integrated radio-frequency wakeup signal receiving device by radio-frequency antenna received RF wake-up signal and carry out rectification, obtains waking up information.The match is successful if represent, to wake the serial data of information and default information code up, sends trigger pip to main control unit or the MCU of Anti-scrape label, wakes Anti-scrape label up.
Then, the Anti-scrape label after waking up can be further with Vehicle mounted station main frame in ETC vehicle module carry out radio communication, interaction data.
Finally, after radio communication completes, Anti-scrape label reenters low-power sleep state.
It should be noted that, in other a kind of optional embodiment, described the first electronic tag 510 can also comprise the radio-frequency wakeup signal receiving device of describing as embodiment tetra-as Vehicle mounted station main frame, and described the second electronic tag 520 as Anti-scrape label can also comprise as the radio-frequency wakeup signal generation apparatus of embodiment tri-descriptions.Thereby make, on Vehicle mounted station main frame, comprise generating means and the receiving trap of radio-frequency wakeup signal simultaneously, on Anti-scrape label, also comprise generating means and the receiving trap of radio-frequency wakeup signal simultaneously.So, not only can utilize Vehicle mounted station main frame to wake Anti-scrape label up, also can utilize Anti-scrape label to wake Vehicle mounted station main frame up.
Above, the embodiment of the present invention provides a kind of MPV (Multi-Purpose Vehicle) microscope carrier that comprises the first electronic tag and the second electronic tag, and take the first electronic tag as Vehicle mounted station main frame, and the second electronic tag is that Anti-scrape label is that example is illustrated.But in some other embodiment, described the first electronic tag 510 can be also specifically Anti-scrape label, described the second electronic tag 520 can be also specifically Vehicle mounted station main frame.About the more detailed description of the present embodiment device, please refer to the content of embodiment mono-to four record.
To sum up, the embodiment of the present invention provides a kind of MPV (Multi-Purpose Vehicle) microscope carrier, comprises Vehicle mounted station main frame and Anti-scrape label.Vehicle mounted station main frame can be launched with the radio-frequency wakeup signal that wakes information up, on Anti-scrape label, store default information code, can receive also demodulation and make the information of waking up in the radiofrequency signal of receiving, when waking information and information code coupling up, wake Anti-scrape label up, thereby, can prevent that Anti-scrape label is by false wake-up, and then, interference free performance and the serviceable life of having improved Anti-scrape label.And, due to the lifting of interference free performance, can obviously increase and wake distance up, improve and wake sensitivity up.Detect wake-up mode with existing radio-frequency carrier and compare, wake sensitivity up and can, from-bring up to-70dBm of 40dBm, wake distance up and can bring up to from 10 meters of left and right tens meters of rice even up to a hundred.
It is to be noted, if adopted at the transmitting terminal low frequency signal that directly transmission comprises the information of waking up to Anti-scrape label, to wake the technical scheme of Anti-scrape label up when the information of waking up is consistent with information code,, characteristic due to low frequency signal itself, need to adopt the antenna of large-size, for example length and width height is the antenna of 150mm*26mm*12mm, could realize preferably the transmitting-receiving of low frequency signal.And in the embodiment of the present invention, employing is modulated to low frequency signal the technical scheme of radio signal transmission, only need to adopt the antenna of reduced size, for example length and width height is the antenna of 1.6mm*3.2mm*1.3mm, can realize preferably the transmitting-receiving of radiofrequency signal, thereby, can significantly reduce the size of Anti-scrape label, realize the microminiaturization of Anti-scrape label.
Embodiment six,
Please refer to Fig. 7, the embodiment of the present invention provides a kind of electric non-stop toll (ETC) system, comprises roadside unit (RSU) equipment 710, also comprises the MPV (Multi-Purpose Vehicle) microscope carrier 720 as five descriptions.
Herein, described MPV (Multi-Purpose Vehicle) microscope carrier or the included Vehicle mounted station main frame of described MPV (Multi-Purpose Vehicle) microscope carrier can be regarded as board units (OBU) equipment 720.
In a kind of embodiment, described roadside unit equipment 710 can comprise the radio-frequency wakeup signal generation apparatus of describing as embodiment tri-.So that emitting radio frequency signal wakes board units equipment up.
About the more detailed description of the present embodiment system, please refer to the content of embodiment mono-to five record.
To sum up, the embodiment of the present invention provides a kind of ETC system, comprises the MPV (Multi-Purpose Vehicle) microscope carrier being comprised of Vehicle mounted station main frame and Anti-scrape label, and RSU.Vehicle mounted station main frame can be launched with the radio-frequency wakeup signal that wakes information up, on Anti-scrape label, store default information code, can receive also demodulation and make the information of waking up in the radiofrequency signal of receiving, when waking information and information code coupling up, wake Anti-scrape label up, thereby, can prevent that Anti-scrape label is by false wake-up, and then, interference free performance and the serviceable life of having improved Anti-scrape label.And, due to the lifting of interference free performance, can obviously increase and wake distance up, improve and wake sensitivity up.Detect wake-up mode with existing radio-frequency carrier and compare, wake sensitivity up and can, from-bring up to-70dBm of 40dBm, wake distance up and can bring up to from 10 meters of left and right tens meters of rice even up to a hundred.
It is to be noted, if adopted at the transmitting terminal low frequency signal that directly transmission comprises the information of waking up to Anti-scrape label, to wake the technical scheme of Anti-scrape label up when the information of waking up is consistent with information code,, characteristic due to low frequency signal itself, need to adopt the antenna of large-size, for example length and width height is the antenna of 150mm*26mm*12mm, could realize preferably the transmitting-receiving of low frequency signal.And in the embodiment of the present invention, employing is modulated to low frequency signal the technical scheme of radio signal transmission, only need to adopt the antenna of reduced size, for example length and width height is the antenna of 1.6mm*3.2mm*1.3mm, can realize preferably the transmitting-receiving of radiofrequency signal, thereby, can significantly reduce the size of Anti-scrape label, realize the microminiaturization of Anti-scrape label.
Above, by several embodiment, technical solution of the present invention has been carried out to brief description.In order to help the clearer understanding technical solution of the present invention of technician, below, provide several application scenarios examples to be described further:
Application scenarios example one,
Please refer to Fig. 8, the MPV (Multi-Purpose Vehicle) microscope carrier in this application scene example comprises Vehicle mounted station main frame and Anti-scrape label.ETC vehicle module in described Vehicle mounted station main frame comprises the radio-frequency wakeup signal generation apparatus of describing as embodiment tri-, and described Anti-scrape label comprises the radio-frequency wakeup signal receiving device of describing as embodiment tetra-.
Wherein, described ETC vehicle module comprises ETC MCU and nRF24LE1 chip and radio frequency modulator, 2.4GHz antenna, 13.56GHZ card reading unit, man-machine interface, Power Management Unit and serial interface etc.NRF24LE1 chip and radio frequency modulator and 2.4GHz antenna can form radio-frequency wakeup signal generation apparatus.NRF24LE1 chip can be realized low frequency (LF) modulating wave generating unit 310 in embodiment tri-and the function of radio frequency (RF) signal generating unit 320, comprise: by software programming mode, produce LF modulating wave and send to radio frequency modulator, utilize self internal command to produce radio frequency continuous wave signal and send to radio frequency modulator as initial radiofrequency signal, and, control radio frequency modulator the inside radio-frequency (RF) switch break-make, thereby, by radio frequency modulator, produce radio-frequency wakeup signal.Radio frequency modulator is by being comprised of a high-isolation single-pole double throw RF switch and 50 ohm of radio frequency absorption resistance, the uPG2163T5N of the optional Renesas of radio-frequency (RF) switch model in the present embodiment.
Described Anti-scrape label also adopts nRF24LE1 chip as core processing unit, and this Anti-scrape label also comprises radio-frequency wakeup signal receiving device as described in embodiment tetra-and battery.NRF24LE1 chip and radio-frequency wakeup signal receiving device have respectively the 2.4GHz antenna using separately.In radio-frequency wakeup signal receiving device: radio-frequency filter can be selected the SAW (Surface Acoustic Wave) filter SAFEA2G45R family device of 2.45GHz frequency range; Radio-frequency (RF) demodulator can be selected the HSMS-2860 series pipe of Avago; Low frequency (LF) signal processing unit can be built by a plurality of function elements, or selects high integrated IC; Transmitting-receiving radio-frequency antenna can be selected the ceramic antenna CAN4311712 series antenna of Yago.
When Vehicle mounted station main frame need to carry out wireless data communications with Anti-scrape label, its workflow of waking Anti-scrape label up is as follows:
First, Vehicle mounted station main frame produces LF modulating wave by the MCU of its inner ETC MCU order nRF24LE1, controls the radio-frequency (RF) switch break-make of radio frequency modulator, generates and launches with the radio-frequency wakeup signal that wakes information up.
Radio-frequency wakeup signal receiving device on Anti-scrape label arrives radio-frequency wakeup signal by antenna reception, demodulates data.If the match is successful for the information of waking up and default information code, send trigger pip to the nRF24LE1 on Anti-scrape label, wake whole Anti-scrape label up.Anti-scrape label after waking up can be further with Vehicle mounted station main frame in ETC vehicle module carry out wireless data communications.Finally, after radio communication completes, Anti-scrape label and Vehicle mounted station main frame enter low-power sleep state again.
Application scenarios example two,
Please refer to Fig. 9, the MPV (Multi-Purpose Vehicle) microscope carrier in this application scene example comprises Vehicle mounted station main frame and Anti-scrape label.Be with the difference of application scenarios example one, the ETC vehicle module in described Vehicle mounted station main frame not only comprises the radio-frequency wakeup signal generation apparatus of describing as embodiment tri-, also comprises the radio-frequency wakeup signal receiving device of describing as embodiment tetra-; Same, described Anti-scrape label not only comprises the radio-frequency wakeup signal receiving device of describing as embodiment tetra-, also comprises the radio-frequency wakeup signal generation apparatus of describing as embodiment tri-.
On the basis of application scenarios example one, in described Anti-scrape label, also comprise radio frequency modulator.NRF24LE1 chip in Anti-scrape label and radio frequency modulator and 2.4GHz antenna can form radio-frequency wakeup signal generation apparatus.
Described Vehicle mounted station main frame and Anti-scrape label can, as the transmitting terminal of radio-frequency wakeup signal, wake another device up.When Vehicle mounted station main frame need to be followed Anti-scrape label row data communication, its workflow of waking Anti-scrape label up is identical with the description in application scenarios example one, no longer describes herein.When Anti-scrape label need to be followed Vehicle mounted station main frame row data communication, its workflow is as follows:
First, Anti-scrape label will produce LF modulating wave by the MCU of its inner its inner nRF24LE1 of ETC MCU order, controls the radio-frequency (RF) switch break-make of radio frequency modulator, generates and launches with the radio-frequency wakeup signal that wakes information up.
The radio-frequency wakeup signal receiving device of Vehicle mounted station main frame arrives radio-frequency wakeup signal by antenna reception, demodulates data.If the match is successful for the information of waking up and default information code, send trigger pip and wake Vehicle mounted station main frame up to the ETC MCU of Vehicle mounted station main frame.Vehicle mounted station main frame after waking up can further carry out wireless data communications with Anti-scrape label.Finally, after radio communication completes, Anti-scrape label and Vehicle mounted station main frame enter low-power sleep state again.
Application scenarios example three,
Please refer to Figure 10, the ETC system in this application scene example comprises RSU and OBU, and described OBU is the Vehicle mounted station main frame of describing in application scenarios example one.On described Vehicle mounted station main frame, also comprise 5.8Ghz DSRC wireless module, Vehicle mounted station main frame can utilize this 5.8Ghz DSRC wireless module and RSU to carry out ETC transaction.
In this application scene example, the workflow of ETC system is as follows:
When vehicle enters the RSU communication zone of ETC system, the ETC vehicle module in Vehicle mounted station main frame is first by RSU wireless awakening signal; ETC vehicle module after being waken up carries out ETC transaction by 5.8GHz and RSU on the one hand, needs on the other hand to carry out data communication by 2.4GHz and Anti-scrape label.Vehicle mounted station host wake-up Anti-scrape label and the flow process of carrying out wireless data communications with Anti-scrape label are as the description in application scenarios example one.
Application scenarios example four,
Please refer to Figure 11, the ETC system in this application scene example comprises RSU and OBU, and described OBU is the Vehicle mounted station main frame of describing in application scenarios example two.On described Vehicle mounted station main frame, also comprise 5.8Ghz DSRC wireless module, Vehicle mounted station main frame can utilize this 5.8Ghz DSRC wireless module and RSU to carry out ETC transaction.
In this application scene example, the workflow of ETC system is as follows:
When vehicle enters the RSU communication zone of ETC system, the ETC vehicle module in Vehicle mounted station main frame is first by RSU wireless awakening signal; ETC vehicle module after being waken up carries out ETC transaction by 5.8GHz and RSU on the one hand, needs on the other hand to carry out data communication by 2.4GHz and Anti-scrape label.Vehicle mounted station host wake-up Anti-scrape label and the flow process of carrying out wireless data communications with Anti-scrape label are as the description in application scenarios example one.In some concrete application, Anti-scrape label can initiatively wake Vehicle mounted station main frame up and carry out wireless data communications with Vehicle mounted station main frame, and its workflow is as the description in application scenarios example two.
One of ordinary skill in the art will appreciate that all or part of step in the whole bag of tricks of above-described embodiment can complete by hardware, also can complete by the relevant hardware of programmed instruction, this program can be stored in a computer-readable recording medium, and storage medium can comprise: ROM (read-only memory), random-access memory, disk or CD etc.
The method of waking electronic tag up, the Apparatus and system that above the embodiment of the present invention are provided are described in detail, but the explanation of above embodiment is just understood method of the present invention and core concept thereof for helping, and should not be construed as limitation of the present invention.In the technical scope that those skilled in the art disclose in the present invention, the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.
Claims (14)
1. a method of waking electronic tag up, is characterized in that, comprising:
The low frequency signal that generation comprises the information of waking up, and described low frequency signal is modulated to radiofrequency signal;
Launch described radiofrequency signal to radio-frequency wakeup signal receiving device, so that described radio-frequency wakeup signal receiving device wakes information described in obtaining by rectification up and wakes electronic tag when information is mated with default information code up described waking up.
2. method according to claim 1, is characterized in that, the low frequency signal that described generation comprises the information of waking up comprises:
Generate initial low frequency signal; And, generate the information of waking up;
According to the described information of waking up, described low frequency signal is modulated, obtained the low frequency signal that comprises the information of waking up.
3. a method of waking electronic tag up, is characterized in that, comprising:
The radiofrequency signal of received RF wake-up signal generating means transmitting;
Described radiofrequency signal demodulation is made as to the low frequency signal that comprises the information of waking up;
Described in obtaining, wake information up, and relatively, wake information up and whether mate with default information code;
If coupling, exports trigger pip to wake electronic tag up.
4. method according to claim 3, is characterized in that, described by described radiofrequency signal demodulation be made as comprise the information of waking up low frequency signal before also comprise:
Described radiofrequency signal is carried out to filtering processing.
5. method according to claim 3, is characterized in that, described in wake information up described in obtaining and comprise:
Described low frequency signal is amplified and Shape correction;
Described low frequency signal through amplification and Shape correction is carried out to rectification, obtain the information of waking up in described low frequency signal.
6. a radio-frequency wakeup signal generation apparatus, is characterized in that, comprising:
Low frequency modulations ripple generating unit, for generating the low frequency signal that comprises the information of waking up;
Radio frequency signal generation unit, for generating initial radiofrequency signal;
Radio-frequency modulator, for according to described low frequency signal, described initial radiofrequency signal being modulated, obtains the radiofrequency signal that comprises the information of waking up;
Radio-frequency antenna, for launching described radiofrequency signal to radio-frequency wakeup signal receiving device, so that described radio-frequency wakeup signal receiving device wakes information described in obtaining by rectification up and wakes electronic tag when information is mated with default information code up described waking up.
7. device according to claim 6, is characterized in that, described low frequency modulations ripple generating unit further comprises:
Low frequency signal generation subelement, for generating initial low frequency signal;
Information code generation subelement, for generating the information of waking up;
Low frequency modulations device, modulates described low frequency signal for waking information described in basis up, obtains the low frequency signal that comprises the information of waking up.
8. a radio-frequency wakeup signal receiving device, is characterized in that, comprising:
Radio-frequency antenna, for the radiofrequency signal of received RF wake-up signal generating means transmitting;
Radio-frequency (RF) demodulator, for being made as by described radiofrequency signal demodulation the low frequency signal that comprises the information of waking up;
Whether low-frequency signal processing unit, for obtaining the information of waking up of described low frequency signal, and wake information up and mate with default information code relatively, if coupling is exported institute's trigger pip to wake electronic tag up.
9. device according to claim 8, is characterized in that, also comprises:
Radio-frequency filter, carries out filtering processing for the radiofrequency signal that described radio-frequency antenna is received, and the radiofrequency signal after filtering is processed sends to described demodulation unit.
10. device according to claim 8, is characterized in that, described low-frequency signal processing unit further comprises:
Low-frequency amplifier, for amplifying and Shape correction described low frequency signal;
Low frequency detuner, carries out low frequency rectification for the described low frequency signal to through amplification and Shape correction, obtains the information of waking up in described low frequency signal;
Storer, for storing default information code;
Whether comparer, mate with default information code for waking information up described in relatively, if coupling is exported trigger pip to wake described electronic tag up.
11. 1 kinds of MPV (Multi-Purpose Vehicle) microscope carriers, comprise the first electronic tag and the second electronic tag, it is characterized in that:
Described the first electronic tag comprises the radio-frequency wakeup signal generation apparatus as described in claim 6 or 7, and described the second electronic tag comprises the radio-frequency wakeup signal receiving device as described in claim 8,9 or 10;
Described the first electronic tag is specially Vehicle mounted station main frame, and described the second electronic tag is specially Anti-scrape label; Or described the first electronic tag is specially Anti-scrape label, described the second electronic tag is specially Vehicle mounted station main frame.
12. MPV (Multi-Purpose Vehicle) microscope carriers according to claim 11, is characterized in that:
Described the first electronic tag also comprises the radio-frequency wakeup signal receiving device as described in claim 8,9 or 10, and described the second electronic tag also comprises the radio-frequency wakeup signal generation apparatus as described in claim 6 or 7.
13. 1 kinds of electric non-stop toll ETC systems, comprise roadside unit equipment, it is characterized in that:
Also comprise the MPV (Multi-Purpose Vehicle) microscope carrier as described in claim 11 or 12.
14. systems according to claim 13, is characterized in that:
Described roadside unit equipment comprises the radio-frequency wakeup signal generation apparatus as described in claim 6 or 7.
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| CN106652061A (en) * | 2016-11-15 | 2017-05-10 | 武汉瑞纳捷电子技术有限公司 | Low-power communication unit and communication method used for ETC charging system |
| CN108418596A (en) * | 2018-02-25 | 2018-08-17 | 成都阳辰物联天下科技有限公司 | Information Acquisition System based on wearable device and method |
| CN108418596B (en) * | 2018-02-25 | 2021-04-30 | 成都阳辰物联天下科技有限公司 | Information acquisition system and method based on wearable equipment |
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| CN113079482A (en) * | 2021-03-23 | 2021-07-06 | 深圳市沃特沃德信息有限公司 | Data transmission method, electronic price tag and computer equipment |
| CN113079482B (en) * | 2021-03-23 | 2023-10-20 | 深圳市沃特沃德信息有限公司 | Data transmission method, electronic price tag and computer equipment |
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