CN105682043A - Wearable-type intelligent student's identity card positioning system - Google Patents

Wearable-type intelligent student's identity card positioning system Download PDF

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Publication number
CN105682043A
CN105682043A CN201610203882.0A CN201610203882A CN105682043A CN 105682043 A CN105682043 A CN 105682043A CN 201610203882 A CN201610203882 A CN 201610203882A CN 105682043 A CN105682043 A CN 105682043A
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CN
China
Prior art keywords
electric capacity
converter
resistance
triode
button
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
Application number
CN201610203882.0A
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Chinese (zh)
Inventor
李迅
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Chongqing Saifeng Jiye Technology Co Ltd
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Chongqing Saifeng Jiye Technology Co Ltd
Priority date (The priority date 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 date listed.)
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Priority to CN201610203882.0A priority Critical patent/CN105682043A/en
Publication of CN105682043A publication Critical patent/CN105682043A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13Receivers
    • G01S19/14Receivers specially adapted for specific applications
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/26Devices for calling a subscriber
    • H04M1/27Devices whereby a plurality of signals may be stored simultaneously
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02Services making use of location information
    • H04W4/029Location-based management or tracking services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/10Push-to-Talk [PTT] or Push-On-Call services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/12Messaging; Mailboxes; Announcements
    • H04W4/14Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W64/00Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H04W64/003Locating users or terminals or network equipment for network management purposes, e.g. mobility management locating network equipment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices

Abstract

The invention discloses a wearable-type intelligent student's identity card positioning system. The system comprises a network connection module, a positioning module and a processor, which are arranged in a student's identity card, wherein the network output end of the network connection module is connected with the network input end of the processor; and the positioning output end of the positioning module is connected with the positioning input end of the processor. The system also comprises a positioning system. When the positioning system sends a signal to the processor in the student's identity card, the processor sends the position of a current student to the positioning system, and the positioning system records the position of the student. The positioning system can carry out positioning on the students, so that the positions of the students can be known conveniently in time.

Description

A kind of Worn type intelligence student's identity card navigation system
Technical field
The present invention relates to a kind of navigation system, particularly relate to a kind of Worn type intelligence student's identity card navigation system.
Background technology
Under the support energetically of country, the educational undertaking of China is flourish. But, in the past several years,China's Campus Security Frequent Accidents, fragile Campus Security environment becomes the haze of can't get rid of. It is current,Among the environment of high schools of China garden safety management in relative closure, Campus Security prevention consciousness weakness,Treatment mechanism confusion, and Campus Security accident is often with sporadic, the safe thing once School happens suddenlyTherefore, so conventionally can cause serious consequence.
For the research of Campus Security problem, all there is relevant experiences and practices both at home and abroad. America and EuropeJapan and other countries, for the morning of research starting of school safety problem, has therefore formed comparatively ripe strick precautionAnd treatment mechanism. Summing up and learning to have on the achievement basis of Campus Security research, how to suit measures to local conditionsSet up the most important thing that complete stable campus security management system is reply Campus Security accident.
In effective solution of recognizing Campus Security problem to after educating the importance of long-acting development, in recent years,Country improves gradually to the attention degree of Campus Security problem, and China's Campus Security construction has also obtained certain one-tenthJust, but the hidden danger of essence still exists, and Campus Security educational problem is to be still suspended in China's education thingOn industry head one be the sword of Damokers, therefore, we urgently exigence know student is in whatUnder state status, for example whether student enters school, leave school or in school in where.
Summary of the invention
The present invention is intended at least solve the technical problem existing in prior art, has proposed to special innovation oneWorn type intelligence student's identity card navigation system.
In order to realize above-mentioned purpose of the present invention, the invention provides a kind of Worn type intelligence student's identity card positioning systemsSystem, this system is included in student's identity card and is provided with network connecting module, locating module and processor, and network connectsThe network output of connection module is connected with the network input of processor, the location output of locating module with locateThe location input of reason device is connected; Also comprise navigation system, in navigation system sends a signal to student's identity cardProcessor, current student present position is sent to navigation system by processor, and navigation system records this student'sPosition.
In a kind of preferred embodiment of the present invention, locating module comprises GPS transceiver, GPS transceiverSending and receiving end respectively with first of the first end of the 1602nd electric capacity (C1602) and the 1603rd electric capacity (C1603)End is connected, the second end of the 1603rd electric capacity (C1603) respectively with the letter of the 1601st converter (U1601)Number input is connected with the first end of the 1604th electric capacity (C1604), the 1601st converter (U1601)Signal output part is connected with the first end of the 1605th electric capacity (C1605), the 1605th electric capacity (C1605)The second end is connected with the first end of the 1601st inductance (L1601), second of the 1601st inductance (L1601)End is connected with the signal input part of the 1010th converter (U1010), the 1010th converter (U1010)Signal output part is respectively with the first end of the 1609th electric capacity (C1609) and the 1603rd inductance (L1603)First end is connected, and the second end of the 1603rd inductance (L1603) is connected with the sending and receiving end of GPS controller, theThe power end of 1010 converters (U1010) and control Enable Pin respectively with the of the 1607th electric capacity (C1607)One end is connected with GPS power supply, the second end of the 1602nd electric capacity (C1602), the 1604th electric capacity (C1604)The second end, the 1607th electric capacity (C1607) the second end, the 1609th electric capacity (C1609) second,The earth terminal of the earth terminal of the 1601st converter (U1601) and the 1010th converter (U1010) respectively withGround is connected.
This locating module can be processed filter amplifying processing to the signal of input, makes framing signal moreEasy identification.
In a kind of preferred embodiment of the present invention, network connecting module comprises the 501st converter (J501),The signal input part of the 501st converter (J501) respectively with the first end and of the 502nd electric capacity (C502)The first end of 501 inductance (L501) is connected, the second end of the 501st inductance (L501) respectively with the 501st electricityThe first end that holds (C501) is connected with the sending and receiving end of RF transceiver (E501), the 501st converter (J501)Signal output part respectively with of the first end of the 503rd inductance (L503) and the 504th electric capacity (C504)One end is connected, the second end of the 504th electric capacity (C504) respectively with the first end of the 504th inductance (L504)Be connected with the sending and receiving end of RF controller, the earth terminal of the 501st converter (J501), the 501st electric capacity (C501)The second end, the second end of the 502nd electric capacity (C502), second end and of the 503rd inductance (L503)The second end of 504 inductance (L504) is connected to the ground respectively.
Filter circuit in this network connecting module makes the signal that receives good, successful.
Be more preferably in embodiment in one of the present invention, network connecting module comprises the 1402nd converter(U1402), the signal transmitting and receiving end of the 1402nd converter (U1402) and the 1401st electric capacity (C1401)The second end is connected, the transmitting-receiving of the first end of the 1401st electric capacity (C1401) and WIFI transceiver (E1401)End be connected, the power input of the 1402nd converter (U1402) respectively with the 1402nd electric capacity (C1402)First end, the first end of the 1403rd electric capacity (C1403) be connected with WIFI power supply, the 1402nd converter(U1402) first signal sending and receiving end respectively with the first end and the 1401st of the 1404th electric capacity (C1404)The first end of resistance (R1401) is connected, and the secondary signal sending and receiving end of the 1402nd converter (U1402) respectivelyBe connected with the first end of the 1402nd resistance (R1402) with the second end of the 1404th electric capacity (C1404), theThe second end of 1401 resistance (R1401) is controlled with first end and the WIFI of the 1405th electric capacity (C1405) respectivelyThe first signal sending and receiving end of device processed is connected, the second end of the 1402nd resistance (R1402) respectively with the 1405th electricityHold second end of (C1405) and the secondary signal sending and receiving end of WIFI controller and be connected, the 1402nd converter(U1402) earth terminal, the second end of the 1402nd electric capacity (C1402) and the 1403rd electric capacity (C1403)The second end be connected to the ground respectively.
Filter circuit in this network connecting module makes the signal that receives good, successful.
In a kind of preferred embodiment of the present invention, also comprise power supply circuits, power supply circuits comprise the 1605thConverter (U1605), the power input of the 1605th converter (U1605) respectively with battery supply andThe first end of 1623 electric capacity (C1623) is connected, the power output end of the 1605th converter (U1605) and theThe first end of 1604 inductance (L1604) is connected, and the second end of the 1604th inductance (L1604) is respectively with theThe first end of 1602 resistance (R1602) is connected with the first end of the 1624th electric capacity (C1624), and the 1605thThe pressure feedback port of converter (U1605) respectively with second end and the 1603rd of the 1602nd resistance (R1602)The first end of resistance (R1603) is connected; The second end of the 1623rd electric capacity (C1623), the 1605th conversionThe earth terminal of device (U1605), the second end of the 1624th electric capacity (C1624) and the 1603rd resistance (R1603)The second end be connected to the ground respectively, of the control Enable Pin of the 1605th converter (U1605) and processor1605 converter control ends are connected.
Stable power supply is provided to WIFI, RFID, SIM or processor/controller etc.
Be more preferably in embodiment in one of the present invention, also comprise that power supply circuits, power supply circuits comprise1503 converters (U1503), the power input of the 1503rd converter (U1503) respectively with battery supplyBe connected with the first end of the 1514th electric capacity (C1514), the control of the 1503rd converter (U1503) enablesEnd respectively with the first end of the first end of the 1517th resistance (R1517), the 1518th resistance (R1518) andThe colelctor electrode of the 1501st triode (Q1501) is connected, the power supply output of the 1503rd converter (U1503)End be connected with the first end of the 1516th electric capacity (C1516), the second end of the 1518th resistance (R1518) withThe base stage of the 1501st triode (Q1501) is connected with the power control terminal of processor respectively, the 1503rd conversionThe earth terminal of device (U1503), the second end of the 1514th electric capacity (C1514), the 1501st triode (Q1501)Emitter stage and the second end of the 1516th electric capacity (C1516) be connected to the ground respectively.
Stable power supply is provided to WIFI, RFID, SIM or processor/controller.
In a kind of preferred embodiment of the present invention, also comprise key circuit: the 1301st electric capacity (C1301)First end be connected to the ground, the second end of the 1301st electric capacity (C1301) is connected with the first pulse, also comprises MIndividual button, described M is positive integer, the first end of 200+i button and the 1301st electric capacity (C1301)The second end be connected, described i is the integer that is not more than M, the second end of 200+i button respectively with 1301+iThe i key-press input end of the first end of electric capacity and processor is connected, the second end of 1301+i electric capacity and ground phaseConnect; The first end of 1302+M electric capacity is connected to the ground, the second end of 1302+M electric capacity and the second pulsion phaseConnect, also comprise N button, described N is the positive integer that is not more than M, the first end of 200+M+j buttonBe connected with the second end of 1302+M electric capacity, described j is the integer that is not more than N, 200+M+j buttonThe second end is connected with the first end of 1301+i electric capacity; Wherein the capacitance of each electric capacity is all not identical.
Can give the phone number dial being pre-stored in advance in memory cell or send note by button, fastSpeed, convenient, and reduced the port being connected with processor.
Be more preferably in embodiment in one of the present invention, in the time that M and N all get 2: the 1301st electric capacity(C1301) first end is connected to the ground, and the second end of the 1301st electric capacity (C1301) is connected with the first pulse,The first end of the 1304th electric capacity (C1304) is connected to the ground, the second end of the 1304th electric capacity (C1304) withThe second pulse is connected; The first end of the first end of the 201st button (S201) and the 202nd button (S202)Be connected with the second end of the 1301st electric capacity (C1301) respectively, the first end of the 203rd button (S203) andThe first end of the 204th button (S204) is connected with the second end of the 1304th electric capacity (C1304) respectively; TheThe second end of the second end of 201 buttons (S201) and the 203rd button (S203) respectively with the 1302nd electric capacity(C1302) the 1st key-press input end of first end and processor is connected, the 1302nd electric capacity (C1302)The second end is connected to the ground; Second of the second end of the 202nd button (S202) and the 204th button (S204)End is connected with the first end of the 1303rd electric capacity (C1303) and the 2nd key-press input end of processor respectively, theThe second end of 1303 electric capacity (C1303) is connected to the ground.
Only need to press any button in S201-S204, just can directly be pre-stored in advance depositing of processorTelephone number dialing phone in storage unit, quick and easy.
Be more preferably in embodiment in one of the present invention, also comprise button indicating circuit, button instruction electricityRoad comprises the 1300th triode (Q1300), the 1301st triode (Q1301), the 1302nd triode (Q1302)With the 1303rd triode (Q1303), colelctor electrode series connection the 1300th electricity of the 1300th triode (Q1300)After resistance (R1300), be connected with the negative pole of the 1700th light emitting diode (LED1700), the 1301st triode(Q1301) colelctor electrode is connected the 1301st resistance (R1301) afterwards and the 1701st light emitting diode (LED1701)Negative pole be connected, after the colelctor electrode of the 1302nd triode (Q1302) series connection the 1302nd resistance (R1302)Be connected with the negative pole of the 1702nd light emitting diode (LED1702), the collection of the 1303rd triode (Q1303)After electrode series connection the 1303rd resistance (R1303) with the negative pole phase of the 1703rd light emitting diode (LED1703)Connect; The positive pole of the 1700th light emitting diode (LED1700), the 1701st light emitting diode (LED1701)Positive pole, positive pole and the 1703rd light emitting diode (LED1703) of the 1702nd light emitting diode (LED1702)Positive pole be connected with battery supply respectively; The emitter stage of the 1300th triode (Q1300), the 1,301 three utmost pointThe emitter stage of pipe (Q1301), emitter stage and the 1303rd triode (Q1303) of the 1302nd triode (Q1302)Emitter stage be connected to the ground respectively; The base stage of the 1300th triode (Q1300), the 1301st triode (Q1301)Base stage, the base stage of the 1302nd triode (Q1302) and the base stage of the 1303rd triode (Q1303) divideThe 1700th light emitting diode control end of corresponding and processor, the 1701st light emitting diode control end, the1703 light emitting diode control ends are connected with the 1704th light emitting diode control end.
Operator is dialed in prompting, the state that machine button is real-time.
In a kind of preferred embodiment of the present invention, also comprise audio frequency input and output filter circuit, audio frequency is defeatedEnter output filter circuit and comprise audio frequency input filter circuit and audio frequency output filter circuit,
Audio frequency input filter circuit comprises at least one microphone, and the first output of microphone is respectively with the 601stThe first end of Transient Suppression Diode (V601), the first end of the 604th electric capacity (C604), the 605th electricityThe first end of appearance (C605), the first end of the 601st resistance (R601) and the 601st electric capacity (C601)First end is connected; The second output of microphone respectively with of the 602nd Transient Suppression Diode (V602)The first end of one end, the 606th electric capacity (C606), second end, the 602nd of the 605th electric capacity (C605)The first end of resistance (R602) is connected with the first end of the 602nd electric capacity (C602); The 601st resistance (R601)The second end respectively with the first end of the 603rd electric capacity (C603) and the first end of the 600th resistance (R600)Be connected, the second end of the 602nd resistance (R602) respectively with the second end of the 603rd electric capacity (C603) and theThe first end of 603 resistance (R603) is connected; Second end, of the 601st Transient Suppression Diode (V601)The second end of 602 Transient Suppression Diodes (V602), second end, the 606th of the 604th electric capacity (C604)The second end of electric capacity (C606), the second end of the 600th resistance (R600) and the 603rd resistance (R603)The second end be connected to the ground respectively; The second end of the 601st electric capacity (C601) and the 602nd electric capacity (C602)The second end be respectively correspondingly connected with the second audio input end with the first audio input end of processor;
Audio frequency output filter circuit comprises loudspeaker, and the first input end of loudspeaker presses down with the 607th transient state respectivelyThe first end of diode processed (V607), the first end of the 628th electric capacity (C628), the 627th electric capacity (C627)First end and the first audio output of processor be connected; The second input of loudspeaker is respectively with the 608thThe first end of Transient Suppression Diode (V608), the first end of the 629th electric capacity (C629), the 627th electricityHolding second end of (C627) and the second audio output of processor is connected; The 607th Transient Suppression Diode(V607) the second end, the second end of the 608th Transient Suppression Diode (V608), the 628th electric capacity (C628)The second end and the second end of the 629th electric capacity (C629) be connected to the ground respectively.
Make the voice signal effect of input/output more obvious by audio frequency input and output filter circuit, callQuality is clear.
In sum, owing to having adopted technique scheme, the invention has the beneficial effects as follows: the present invention canStudent is positioned, be conducive to understand in time student present position, effective and safe management student.
Brief description of the drawings
Fig. 1 is system block diagram of the present invention.
Fig. 2 is locating module circuit connection diagram of the present invention.
Fig. 3 is network connecting module circuit connection diagram of the present invention.
Fig. 4 is network connecting module circuit connection diagram of the present invention.
Fig. 5 is power supply circuits connection diagram of the present invention.
Fig. 6 is power supply circuits connection diagram of the present invention.
Fig. 7 is key circuit connection diagram of the present invention.
Fig. 8 is indicator light circuit connection diagram of the present invention.
Fig. 9 is audio frequency input and output filter circuit connection diagram of the present invention.
Figure 10 is audio frequency input and output filter circuit connection diagram of the present invention.
Detailed description of the invention
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, wherein certainlyBeginning to whole same or similar label represents same or similar element or has the unit of identical or similar functionsPart. Exemplary below by the embodiment being described with reference to the drawings, only for explaining the present invention, and can notBe interpreted as limitation of the present invention.
In description of the invention, unless otherwise prescribed and limit, it should be noted that, term " installation "," be connected ", " connection " should be interpreted broadly, and for example, can be mechanical connection or electrical connection, can be alsoThe connection of two element internals, can be to be directly connected, also can indirectly be connected by intermediary, forThose of ordinary skill in the art, can understand the concrete meaning of above-mentioned term as the case may be.
The invention provides a kind of Worn type intelligence student's identity card navigation system, as shown in Figure 1, this system comprisesIn student's identity card, be provided with network connecting module, locating module and processor, the network of network connecting module is defeatedGo out end and be connected with the network input of processor, the location output of locating module and the input of the location of processorEnd is connected; Also comprise navigation system, the processor in navigation system sends a signal to student's identity card, processorCurrent student present position is sent to navigation system, and navigation system records this student's position. In this enforcementIn mode, navigation system is prior art, can process the student position of receiving, for example, through connecingThe information of receiving, can clearly understand the residing position of current student, or simulates this student's positionTrack.
In a kind of preferred embodiment of the present invention, as shown in Figure 2, locating module comprises GPS transceiverANT601, the sending and receiving end of GPS transceiver ANT601 respectively with the first end and of the 1602nd capacitor C 1602The first end of 1603 capacitor C 1603 is connected, and the second end of the 1603rd capacitor C 1603 turns with the 1601st respectivelyThe signal input part of parallel operation U1601 is connected with the first end of the 1604th capacitor C 1604, the 1601st converterThe signal output part of U1601 is connected with the first end of the 1605th capacitor C 1605, the 1605th capacitor C 1605The second end is connected with the first end of the 1601st inductance L 1601, the second end of the 1601st inductance L 1601 andThe signal input part of 1010 converter U1010 is connected, and the signal output part of the 1010th converter U1010 respectivelyBe connected with the first end of the 1603rd inductance L 1603 with the first end of the 1609th capacitor C 1609, the 1603rd electricityThe second end of sense L1603 is connected with the sending and receiving end of GPS controller, the power end of the 1010th converter U1010Be connected with GPS power supply with the first end of the 1607th capacitor C 1607 respectively with control Enable Pin, the 1602nd electricityHold the second end, the 1604th capacitor C 1604 of C1602 the second end, the 1607th capacitor C 1607 secondEnd, the 1609th capacitor C 1609 second, the earth terminal of the 1601st converter U1601 and the 1010th conversionThe earth terminal of device U1010 is connected to the ground respectively. In the present embodiment, the 1602nd electric capacity, the 1603rd electricityThe connection of appearance, the 1604th electric capacity and the 1605th electric capacity, the 1603rd inductance is not limited to shown in Fig. 2, all rightBe other connected mode, for example the sending and receiving end of GPS transceiver is connected with the first end of the 1605th electric capacity, and the 1605thThe second end of electric capacity is connected with the first end of the 1601st inductance, and the second end of the 1601st inductance and the 1601st turnsThe signal input part of parallel operation is connected; The signal output part of the 1601st converter respectively with of the 1602nd electric capacityOne end is connected with the first end of the 1603rd electric capacity, the second end of the 1603rd electric capacity respectively with the 1010th converterSignal input part be connected with the first end of the 1604th electric capacity, (having there is variation in the link position that is them)Therefore not to repeat here for other annexation, and can be other annexation.
In a kind of preferred embodiment of the present invention, as shown in Figure 3, network connecting module comprises the 501stConverter J501, the signal input part of the 501st converter J501 respectively with first of the 502nd capacitor C 502End is connected with the first end of the 501st inductance L 501, and the second end of the 501st inductance L 501 is respectively with the 501stThe first end of capacitor C 501 is connected with the sending and receiving end of RF transceiver E501, the letter of the 501st converter J501Number output is connected with the first end of the 504th capacitor C 504 with the first end of the 503rd inductance L 503 respectively,The second end of the 504th capacitor C 504 respectively with the transmitting-receiving of first end and the RF controller of the 504th inductance L 504End is connected, the earth terminal of the 501st converter J501, the second end of the 501st capacitor C 501, the 502nd electricityHold the second end, the second end of the 503rd inductance L 503 and the second end of the 504th inductance L 504 of C502 respectivelyBe connected to the ground. In the present embodiment, the 501st electric capacity, the 501st inductance, the 502nd electric capacity and the 503rdIt is shown in Fig. 3 that the annexation of inductance, the 504th electric capacity, the 504th inductance is not limited to, and their connection is closedSystem can switch, for example the signal input part of the 501st converter respectively with the first end of the 503rd inductanceBe connected with the first end of the 504th electric capacity, the second end of the 504th electric capacity respectively with the first end of the 504th inductanceBe connected with the sending and receiving end of RF transceiver; The signal output part of the 501st converter respectively with of the 502nd electric capacityOne end is connected with the first end of the 501st inductance, the second end of the 501st inductance respectively with of the 501st electric capacityOne end is connected with the sending and receiving end of RF controller; Other annexation is identical, and therefore not to repeat here.
Be more preferably in embodiment in one of the present invention, as shown in Figure 4, network connecting module comprises1402 converter U1402, the signal transmitting and receiving end of the 1402nd converter U1402 and the 1401st capacitor C 1401The second end be connected, the sending and receiving end phase of the first end of the 1401st capacitor C 1401 and WIFI transceiver E1401Connect, the power input of the 1402nd converter U1402 respectively with the first end of the 1402nd capacitor C 1402,The first end of the 1403rd capacitor C 1403 is connected with WIFI power supply, the first letter of the 1402nd converter U1402Number sending and receiving end respectively with the first end of the 1404th capacitor C 1404 and the first end phase of the 1401st resistance R 1401Connect, the secondary signal sending and receiving end of the 1402nd converter U1402 respectively with second of the 1404th capacitor C 1404End is connected with the first end of the 1402nd resistance R 1402, and the second end of the 1401st resistance R 1401 is respectively with theThe first signal sending and receiving end of the first end of 1405 capacitor C 1405 and WIFI controller is connected, the 1402nd resistanceThe second end of R1402 is received with the second end of the 1405th capacitor C 1405 and the secondary signal of WIFI controller respectivelyMake a start connected, the earth terminal of the 1402nd converter U1402, the second end of the 1402nd capacitor C 1402 andThe second end of 1403 capacitor C 1403 is connected to the ground respectively. In the present embodiment, network connecting module also canTo adopt SIM of the prior art, be connected with navigation system by wireless 2G, 3G or 4G signal,The concrete model that adopts sim module is S73-1B15F14A.
In a kind of preferred embodiment of the present invention, as shown in Figure 5, also comprise power supply circuits, power supply electricityRoad comprises the 1605th converter U1605, the power input of the 1605th converter U1605 respectively with battery electricitySource is connected with the first end of the 1623rd capacitor C 1623, the power output end of the 1605th converter U1605 withThe first end of the 1604th inductance L 1604 is connected, and the second end of the 1604th inductance L 1604 is respectively with the 1602ndThe first end of resistance R 1602 is connected with the first end of the 1624th capacitor C 1624, the 1605th converter U1605Pressure feedback port respectively with first of the second end of the 1602nd resistance R 1602 and the 1603rd resistance R 1603End is connected; The second end of the 1623rd capacitor C 1623, the earth terminal of the 1605th converter U1605, the 1624thThe second end of the second end of capacitor C 1624 and the 1603rd resistance R 1603 is connected to the ground respectively, and the 1605th turnsThe control Enable Pin of parallel operation U1605 is connected with the 1605th converter control end of processor.
Be more preferably in embodiment in one of the present invention, as shown in Figure 6, also comprise power supply circuits, supplyElectricity circuit comprise the 1503rd converter U1503, the power input of the 1503rd converter U1503 respectively with electricityPond power supply is connected with the first end of the 1514th capacitor C 1514, and the control of the 1503rd converter U1503 enablesEnd respectively with the first end of the 1517th resistance R 1517, the first end and the 1501st of the 1518th resistance R 1518The colelctor electrode of triode Q1501 is connected, the power output end of the 1503rd converter U1503 and the 1516th electricityThe first end that holds C1516 is connected, the second end of the 1518th resistance R 1518 and the 1501st triode Q1501Base stage be connected with the power control terminal of processor respectively, the earth terminal, the 1514th of the 1503rd converter U1503The second end of capacitor C 1514, the emitter stage of the 1501st triode Q1501 and the 1516th capacitor C 1516The second end is connected to the ground respectively. In the present embodiment, triode can replace by field-effect pipe belt, for example PDitch enhancement mode metal-oxide-semiconductor or N ditch enhancement mode metal-oxide-semiconductor, can be also P ditch depletion type MOS tube, its MOSThe connection of pipe in circuit is connected with triode, and therefore not to repeat here.
In a kind of preferred embodiment of the present invention, also comprise key circuit: the 1301st capacitor C 1301First end is connected to the ground, and the second end of the 1301st capacitor C 1301 is connected with the first pulse, also comprise M byKey, M is positive integer, the first end of 200+i button is connected with the second end of the 1301st capacitor C 1301, iFor being not more than the integer of M, the second end of 200+i button is respectively with the first end of 1301+i electric capacity with locateThe i key-press input end of reason device is connected, and the second end of 1301+i electric capacity is connected to the ground; 1302+M electricityThe first end holding is connected to the ground, and the second end of 1302+M electric capacity is connected with the second pulse, also comprise N individual byKey, N is the positive integer that is not more than M, second of the first end of 200+M+j button and 1302+M electric capacityEnd is connected, and j is the integer that is not more than N, the of the second end of 200+M+j button and 1301+i electric capacityOne end is connected; Wherein the capacitance of each electric capacity is all not identical. In the present embodiment, as shown in Figure 7, work as MAll get 2 o'clock with N: the first end of the 1301st capacitor C 1301 is connected to the ground, the 1301st capacitor C 1301The second end is connected with the first pulse, and the first end of the 1304th capacitor C 1304 is connected to the ground, the 1304th electric capacityThe second end of C1304 is connected with the second pulse; The first end of the 201st button S201 and the 202nd button S202First end be connected with the second end of the 1301st capacitor C 1301 respectively, the first end of the 203rd button S203Be connected with the second end of the 1304th capacitor C 1304 respectively with the first end of the 204th button S204; The 201stThe second end of the second end of button S201 and the 203rd button S203 respectively with of the 1302nd capacitor C 1302The 1st key-press input end of one end and processor is connected, and the second end of the 1302nd capacitor C 1302 is connected to the ground;The second end of the second end of the 202nd button S202 and the 204th button S204 respectively with the 1303rd capacitor C 1303First end and the 2nd key-press input end of processor be connected, the second end of the 1303rd capacitor C 1303 and ground phaseConnect.
Be more preferably in embodiment in one of the present invention, as shown in Figure 8, also comprise button indicating circuit,Button indicating circuit comprises the 1300th triode Q1300, the 1301st triode Q1301, the 1,302 three utmost pointPipe Q1302 and the 1303rd triode Q1303, the colelctor electrode series connection the 1300th of the 1300th triode Q1300After resistance R 1300, be connected with the negative pole of the 1700th LED 1700, the 1301st triode Q1301Colelctor electrode series connection the 1301st resistance R 1301 after be connected with the negative pole of the 1701st LED 1701,The colelctor electrode of the 1302nd triode Q1302 is connected the 1302nd resistance R 1302 afterwards and the 1702nd light emitting diodeThe negative pole of LED1702 is connected, after colelctor electrode series connection the 1303rd resistance R 1303 of the 1303rd triode Q1303Be connected with the negative pole of the 1703rd LED 1703; The 1700th LED 1700 justThe positive pole of the utmost point, the 1701st LED 1701, the positive pole of the 1702nd LED 1702Be connected with battery supply respectively with the positive pole of the 1703rd LED 1703; The 1300th triode Q1300Emitter stage, the 1301st triode Q1301 emitter stage, the 1302nd triode Q1302 emitter stage andThe emitter stage of the 1303rd triode Q1303 is connected to the ground respectively; The base stage of the 1300th triode Q1300,The base stage of the 1301st triode Q1301, the base stage of the 1302nd triode Q1302 and the 1303rd triode Q1303Respectively the 1700th light emitting diode control end, the 1701st light-emitting diodes management and control of corresponding and processor of base stageSystem end, the 1703rd light emitting diode control end are connected with the 1704th light emitting diode control end.
In a kind of preferred embodiment of the present invention, also comprise audio frequency input and output filter circuit, audio frequency is defeatedEnter output filter circuit and comprise audio frequency input filter circuit and audio frequency output filter circuit, as shown in Figure 9, soundFrequently input filter circuit comprises at least one microphone MIC600, MIC601, microphone MIC600, MIC601The first output respectively with first end, the 604th capacitor C 604 of the 601st Transient Suppression Diode V601First end, the first end of the 605th capacitor C 605, first end and the 601st electricity of the 601st resistance R 601The first end that holds C601 is connected; The second output of microphone MIC600, MIC601 respectively with the 602nd winkThe first end of state twin zener dioder V602, the first end of the 606th capacitor C 606, the 605th capacitor C 605The first end of the second end, the 602nd resistance R 602 is connected with the first end of the 602nd capacitor C 602; The 601stThe second end of resistance R 601 respectively with first of the first end of the 603rd capacitor C 603 and the 600th resistance R 600End is connected, the second end of the 602nd resistance R 602 respectively with second end and the 603rd of the 603rd capacitor C 603The first end of resistance R 603 is connected; The second end of the 601st Transient Suppression Diode V601, the 602nd transient stateOf the second end of twin zener dioder V602, the second end of the 604th capacitor C 604, the 606th capacitor C 606The second end of the second end of two ends, the 600th resistance R 600 and the 603rd resistance R 603 is connected to the ground respectively;The second end of the second end of the 601st capacitor C 601 and the 602nd capacitor C 602 respectively corresponding and processor theOne audio input end is connected with the second audio input end; As shown in figure 10, audio frequency output filter circuit comprises and raisingSound device SPK600, the first input end of loudspeaker SPK600 respectively with the 607th Transient Suppression Diode V607The first end of first end, the 627th capacitor C 627 of first end, the 628th capacitor C 628 and processorThe first audio output is connected; The second input of loudspeaker SPK600 suppresses two utmost points with the 608th transient state respectivelyThe first end of first end, the 629th capacitor C 629 of pipe V608, the second end of the 627th capacitor C 627 and locateThe second audio output of reason device is connected; The second end of the 607th Transient Suppression Diode V607, the 608th winkThe second end of state twin zener dioder V608, the second end of the 628th capacitor C 628 and the 629th capacitor C 629The second end is connected to the ground respectively.
In the present embodiment, the model of processor is MT6261; The model of the 1601st converter is B9444,The model of the 1010th converter is MXDLN16G, and the model of GPS controller is UBX-G7020-KT; The 501stThe model of converter is RFBPB2012090AM1T59, and the model of RF controller is AP5200; The 1402nd turnsThe model of parallel operation is RFBPB2012090AM1T5, and the model of WIFI controller is MT5931A; The 1605th turnsThe model of parallel operation is CP3608ST; The 1503rd converter is one of BL9198 series converter, specifically selectsModel is BL9198-28BAPRN, and other hardware cells of not mentioning are existing equipment, for example microphone andLoudspeaker.
In the description of this description, reference term " embodiment ", " some embodiment ", " example ",The description of " concrete example " or " some examples " etc. means the concrete spy in conjunction with this embodiment or example descriptionLevy, structure, material or feature be contained at least one embodiment of the present invention or example. In this explanationIn book, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example. And, retouchSpecific features, structure, material or the feature of stating can be in any one or more embodiment or exampleWith suitable mode combination.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that:In the situation that not departing from principle of the present invention and aim can to these embodiment carry out multiple variation, amendment,Replace and modification, scope of the present invention is limited by claim and equivalent thereof.

Claims (10)

1. a Worn type intelligence student's identity card navigation system, is characterized in that, is provided with network in student's identity cardLink block, locating module and processor, the network output of network connecting module and the network of processor are defeatedEnter end and be connected, the location output of locating module is connected with the location input of processor;
Also comprise navigation system, the processor in navigation system sends a signal to student's identity card, processor oughtFront student present position sends to navigation system, and navigation system records this student's position.
2. Worn type intelligence student's identity card navigation system according to claim 1, is characterized in that locationModule comprises GPS transceiver, the sending and receiving end of GPS transceiver respectively with first of the 1602nd electric capacity (C1602)End is connected with the first end of the 1603rd electric capacity (C1603), and the second end of the 1603rd electric capacity (C1603) dividesNot with the signal input part of the 1601st converter (U1601) and the first end of the 1604th electric capacity (C1604)Be connected, first of the signal output part of the 1601st converter (U1601) and the 1605th electric capacity (C1605)End is connected, the first end phase of the second end of the 1605th electric capacity (C1605) and the 1601st inductance (L1601)Connect the signal input part of the second end of the 1601st inductance (L1601) and the 1010th converter (U1010)Be connected, the signal output part of the 1010th converter (U1010) is respectively with the 1609th electric capacity (C1609)First end is connected with the first end of the 1603rd inductance (L1603), second of the 1603rd inductance (L1603)End is connected with the sending and receiving end of GPS controller, and power end and the control of the 1010th converter (U1010) enableEnd is connected with GPS power supply with the first end of the 1607th electric capacity (C1607) respectively, the 1602nd electric capacity (C1602)The second end, the 1604th electric capacity (C1604) the second end, the 1607th electric capacity (C1607) the second end,The 1609th electric capacity (C1609) second, the earth terminal and the 1010th of the 1601st converter (U1601) turnsThe earth terminal of parallel operation (U1010) is connected to the ground respectively.
3. Worn type intelligence student's identity card navigation system according to claim 1, is characterized in that networkLink block comprises the 501st converter (J501), and the signal input part of the 501st converter (J501) respectivelyBe connected with the first end of the 501st inductance (L501) with the first end of the 502nd electric capacity (C502), the 501stThe second end of inductance (L501) respectively with first end and the RF transceiver (E501) of the 501st electric capacity (C501)Sending and receiving end be connected, the signal output part of the 501st converter (J501) respectively with the 503rd inductance (L503)First end be connected with the first end of the 504th electric capacity (C504), the second end of the 504th electric capacity (C504)Be connected with the sending and receiving end of RF controller with the first end of the 504th inductance (L504) respectively, the 501st converter(J501) of earth terminal, the second end of the 501st electric capacity (C501), the 502nd electric capacity (C502)The second end of the second end of two ends, the 503rd inductance (L503) and the 504th inductance (L504) respectively with groundBe connected.
4. Worn type intelligence student's identity card navigation system according to claim 1, is characterized in that networkLink block comprises the 1402nd converter (U1402), the signal transmitting and receiving end of the 1402nd converter (U1402)Be connected with the second end of the 1401st electric capacity (C1401), first end and the WIFI of the 1401st electric capacity (C1401)The sending and receiving end of transceiver (E1401) is connected, the power input of the 1402nd converter (U1402) respectively withThe first end of the 1402nd electric capacity (C1402), first end and the WIFI power supply of the 1403rd electric capacity (C1403)Be connected, the first signal sending and receiving end of the 1402nd converter (U1402) respectively with the 1404th electric capacity (C1404)First end be connected with the first end of the 1401st resistance (R1401), the 1402nd converter (U1402)Secondary signal sending and receiving end respectively with the second end and the 1402nd resistance (R1402) of the 1404th electric capacity (C1404)First end be connected, the second end of the 1401st resistance (R1401) respectively with the 1405th electric capacity (C1405)First end and the first signal sending and receiving end of WIFI controller be connected, second of the 1402nd resistance (R1402)End is connected with the 1405th the second end of electric capacity (C1405) and the secondary signal sending and receiving end of WIFI controller respectively,The earth terminal of the 1402nd converter (U1402), second end and the 1403rd of the 1402nd electric capacity (C1402)The second end of electric capacity (C1403) is connected to the ground respectively.
5. according to the Worn type intelligence student's identity card navigation system one of claim 2-4 Suo Shu, it is characterized in that,Also comprise power supply circuits, power supply circuits comprise the 1605th converter (U1605), the 1605th converter (U1605)Power input be connected with the first end of the 1623rd electric capacity (C1623) with battery supply respectively, the 1605thThe power output end of converter (U1605) is connected with the first end of the 1604th inductance (L1604), and the 1604thThe second end of inductance (L1604) respectively with first end and the 1624th electric capacity of the 1602nd resistance (R1602)(C1624) first end is connected, and the pressure feedback port of the 1605th converter (U1605) is respectively with the 1602ndThe second end of resistance (R1602) is connected with the first end of the 1603rd resistance (R1603); The 1623rd electric capacity(C1623) the second end, the earth terminal of the 1605th converter (U1605), the 1624th electric capacity (C1624)The second end and the second end of the 1603rd resistance (R1603) be connected to the ground respectively, the 1605th converter (U1605)Control Enable Pin be connected with the 1605th converter control end of processor.
6. according to the Worn type intelligence student's identity card navigation system one of claim 2-4 Suo Shu, it is characterized in that,Also comprise power supply circuits, power supply circuits comprise the 1503rd converter (U1503), the 1503rd converter (U1503)Power input be connected with the first end of the 1514th electric capacity (C1514) with battery supply respectively, the 1503rdThe control Enable Pin of converter (U1503) respectively with the first end, the 1518th of the 1517th resistance (R1517)The first end of resistance (R1518) is connected with the colelctor electrode of the 1501st triode (Q1501), and the 1503rd turnsThe power output end of parallel operation (U1503) is connected with the first end of the 1516th electric capacity (C1516), and the 1518thThe base stage of the second end of resistance (R1518) and the 1501st triode (Q1501) respectively with the power supply of processorControl end is connected, the of the earth terminal of the 1503rd converter (U1503), the 1514th electric capacity (C1514)The second end of the emitter stage of two ends, the 1501st triode (Q1501) and the 1516th electric capacity (C1516) dividesBe not connected to the ground.
7. Worn type intelligence student's identity card navigation system according to claim 1, is characterized in that, also bagDraw together key circuit: the first end of the 1301st electric capacity (C1301) is connected to the ground, the 1301st electric capacity (C1301)The second end be connected with the first pulse, also comprise M button, described M is positive integer, 200+i buttonFirst end be connected with the second end of the 1301st electric capacity (C1301), described i is the integer that is not more than M,The second end of 200+i button respectively with the first end of 1301+i electric capacity and the i key-press input of processorEnd is connected, and the second end of 1301+i electric capacity is connected to the ground;
The first end of 1302+M electric capacity is connected to the ground, the second end of 1302+M electric capacity and the second pulsion phaseConnect, also comprise N button, described N is the positive integer that is not more than M, the first end of 200+M+j buttonBe connected with the second end of 1302+M electric capacity, described j is the integer that is not more than N, 200+M+j buttonThe second end is connected with the first end of 1301+i electric capacity; Wherein the capacitance of each electric capacity is all not identical.
8. Worn type intelligence student's identity card navigation system according to claim 7, is characterized in that, works as MAll get: the first end of the 1301st electric capacity (C1301) is connected to the ground the 1301st electric capacity (C1301) at 2 o'clock with NThe second end be connected with the first pulse, the first end of the 1304th electric capacity (C1304) is connected to the ground, the 1304thThe second end of electric capacity (C1304) is connected with the second pulse; The first end of the 201st button (S201) and the 202ndThe first end of button (S202) is connected with the second end of the 1301st electric capacity (C1301) respectively, and the 203rd pressesThe first end of the first end of key (S203) and the 204th button (S204) respectively with the 1304th electric capacity (C1304)The second end be connected; The second end of the second end of the 201st button (S201) and the 203rd button (S203)Be connected with the first end of the 1302nd electric capacity (C1302) and the 1st key-press input end of processor respectively, the 1302ndThe second end of electric capacity (C1302) is connected to the ground; The second end of the 202nd button (S202) and the 204th button(S204) the second end respectively with the first end of the 1303rd electric capacity (C1303) and the 2nd button of processorInput is connected, and the second end of the 1303rd electric capacity (C1303) is connected to the ground.
9. Worn type intelligence student's identity card navigation system according to claim 8, is characterized in that, also bagDraw together button indicating circuit, button indicating circuit comprises the 1300th triode (Q1300), the 1301st triode(Q1301), the 1302nd triode (Q1302) and the 1303rd triode (Q1303), the 1,300 3 utmost pointThe colelctor electrode of pipe (Q1300) is connected the 1300th resistance (R1300) afterwards and the 1700th light emitting diode (LED1700)Negative pole be connected, after the colelctor electrode of the 1301st triode (Q1301) series connection the 1301st resistance (R1301)Be connected with the negative pole of the 1701st light emitting diode (LED1701), the collection of the 1302nd triode (Q1302)After electrode series connection the 1302nd resistance (R1302) with the negative pole phase of the 1702nd light emitting diode (LED1702)Connect, colelctor electrode series connection the 1303rd resistance (R1303) of the 1303rd triode (Q1303) is rear with the 1703rdThe negative pole of light emitting diode (LED1703) is connected; The positive pole of the 1700th light emitting diode (LED1700),The positive pole of the 1701st light emitting diode (LED1701), the 1702nd light emitting diode (LED1702) are justThe utmost point is connected with battery supply respectively with the positive pole of the 1703rd light emitting diode (LED1703); The 1,300 three utmost pointEmitter stage, the emitter stage of the 1301st triode (Q1301), the 1302nd triode (Q1302) of pipe (Q1300)Emitter stage and the emitter stage of the 1303rd triode (Q1303) be connected to the ground respectively; The 1300th triode(Q1300) base stage, the base stage of the 1301st triode (Q1301), the 1302nd triode (Q1302)Base stage and the base stage of the 1303rd triode (Q1303) the 1700th light-emitting diodes of corresponding and processor respectivelyPipe control end, the 1701st light emitting diode control end, the 1703rd light emitting diode control end and the 1704thOptical diode control end is connected.
10. Worn type intelligence student's identity card navigation system according to claim 1, is characterized in that, alsoComprise audio frequency input and output filter circuit, audio frequency input and output filter circuit comprise audio frequency input filter circuit andAudio frequency output filter circuit,
Audio frequency input filter circuit comprises at least one microphone, and the first output of microphone is respectively with the 601stThe first end of Transient Suppression Diode (V601), the first end of the 604th electric capacity (C604), the 605th electricityThe first end of appearance (C605), the first end of the 601st resistance (R601) and the 601st electric capacity (C601)First end is connected; The second output of microphone respectively with of the 602nd Transient Suppression Diode (V602)The first end of one end, the 606th electric capacity (C606), second end, the 602nd of the 605th electric capacity (C605)The first end of resistance (R602) is connected with the first end of the 602nd electric capacity (C602); The 601st resistance (R601)The second end respectively with the first end of the 603rd electric capacity (C603) and the first end of the 600th resistance (R600)Be connected, the second end of the 602nd resistance (R602) respectively with the second end of the 603rd electric capacity (C603) and theThe first end of 603 resistance (R603) is connected; Second end, of the 601st Transient Suppression Diode (V601)The second end of 602 Transient Suppression Diodes (V602), second end, the 606th of the 604th electric capacity (C604)The second end of electric capacity (C606), the second end of the 600th resistance (R600) and the 603rd resistance (R603)The second end be connected to the ground respectively; The second end of the 601st electric capacity (C601) and the 602nd electric capacity (C602)The second end be respectively correspondingly connected with the second audio input end with the first audio input end of processor;
Audio frequency output filter circuit comprises loudspeaker, and the first input end of loudspeaker presses down with the 607th transient state respectivelyThe first end of diode processed (V607), the first end of the 628th electric capacity (C628), the 627th electric capacity (C627)First end and the first audio output of processor be connected; The second input of loudspeaker is respectively with the 608thThe first end of Transient Suppression Diode (V608), the first end of the 629th electric capacity (C629), the 627th electricityHolding second end of (C627) and the second audio output of processor is connected; The 607th Transient Suppression Diode(V607) the second end, the second end of the 608th Transient Suppression Diode (V608), the 628th electric capacity (C628)The second end and the second end of the 629th electric capacity (C629) be connected to the ground respectively.
CN201610203882.0A 2016-04-01 2016-04-01 Wearable-type intelligent student's identity card positioning system Pending CN105682043A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101424729A (en) * 2007-10-31 2009-05-06 郑州威科姆技术开发有限公司 Big dipper//GPS time service type double-system receiving antenna
CN104424912A (en) * 2013-08-22 2015-03-18 鸿富锦精密工业(武汉)有限公司 Brightness adjusting circuit
CN104700563A (en) * 2013-12-04 2015-06-10 大连鸿祺科技发展有限公司 Student's personal safety protection alarming terminal
CN204694847U (en) * 2015-06-24 2015-10-07 北斗恒通(北京)科技有限公司 Orientable electronic certificate and electronic certificate positioning system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101424729A (en) * 2007-10-31 2009-05-06 郑州威科姆技术开发有限公司 Big dipper//GPS time service type double-system receiving antenna
CN104424912A (en) * 2013-08-22 2015-03-18 鸿富锦精密工业(武汉)有限公司 Brightness adjusting circuit
CN104700563A (en) * 2013-12-04 2015-06-10 大连鸿祺科技发展有限公司 Student's personal safety protection alarming terminal
CN204694847U (en) * 2015-06-24 2015-10-07 北斗恒通(北京)科技有限公司 Orientable electronic certificate and electronic certificate positioning system

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