WO2016119702A1 - 一种光通信发射装置及接收装置 - Google Patents

一种光通信发射装置及接收装置 Download PDF

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Publication number
WO2016119702A1
WO2016119702A1 PCT/CN2016/072351 CN2016072351W WO2016119702A1 WO 2016119702 A1 WO2016119702 A1 WO 2016119702A1 CN 2016072351 W CN2016072351 W CN 2016072351W WO 2016119702 A1 WO2016119702 A1 WO 2016119702A1
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WO
WIPO (PCT)
Prior art keywords
signal
module
optical
inverting input
lock
Prior art date
Application number
PCT/CN2016/072351
Other languages
English (en)
French (fr)
Inventor
刘若鹏
黄薇子
许伟成
范林勇
潘志伟
Original Assignee
深圳光启智能光子技术有限公司
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.)
Filing date
Publication date
Priority claimed from CN201520057927.9U external-priority patent/CN204463263U/zh
Priority claimed from CN201520161289.5U external-priority patent/CN204498130U/zh
Priority claimed from CN201520163214.0U external-priority patent/CN204517817U/zh
Priority claimed from CN201520317697.5U external-priority patent/CN204667496U/zh
Priority claimed from CN201520341673.3U external-priority patent/CN204578540U/zh
Priority claimed from CN201520838691.2U external-priority patent/CN205193852U/zh
Application filed by 深圳光启智能光子技术有限公司 filed Critical 深圳光启智能光子技术有限公司
Priority to EP16742764.0A priority Critical patent/EP3252970A4/en
Priority to JP2017539644A priority patent/JP6499303B2/ja
Priority to KR1020177022085A priority patent/KR102050548B1/ko
Publication of WO2016119702A1 publication Critical patent/WO2016119702A1/zh
Priority to US15/661,082 priority patent/US10116431B2/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0075—Arrangements for synchronising receiver with transmitter with photonic or optical means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
    • H04B10/114—Indoor or close-range type systems
    • H04B10/116—Visible light communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
    • H04B10/118—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum specially adapted for satellite communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/516—Details of coding or modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/58—Compensation for non-linear transmitter output
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H04B10/66—Non-coherent receivers, e.g. using direct detection

Definitions

  • the communication technology of the present invention and more particularly, to an optical communication transmitting device and a receiving device.
  • Optical communication technology is a communication technology that uses optical as a carrier to propagate signals, including optical fiber communication technology and visible light communication technology.
  • a laser diode or a light emitting diode is used as a light source, and an optical fiber is used as an optical transmission medium.
  • a fluorescent lamp or a light emitting diode is used as a light source, and air is used as a light transmitting medium.
  • the transmitting device needs to superimpose or modulate the information on the optical carrier, thereby transmitting the modulated optical signal, and demodulating the optical signal at the receiving device to obtain the information.
  • the visible light communication device includes an optical signal transmitting device as a transmitting device and an optical signal receiving device as a receiving device.
  • the visible light communication device modulates the information into intensity changes of the optical carrier, and uses the blinking signal of the light to convey the information. Since the intensity of the optical carrier changes frequently, the human eye does not even notice the flicker of the light.
  • the visible light communication can use the indoor lighting device instead of the wireless LAN local area base station to transmit signals, so that it can combine the functions of illumination and communication.
  • the communication speed of visible light communication can reach tens of megahertz to hundreds of megabits per second. As long as the light is shining, it can be uploaded or downloaded at high speed. The use of multiple computers will not affect the communication speed. Visible light communication technology also has the characteristics of high security. As long as the light is blocked, the information will not leak.
  • the present invention provides an optical communication transmitting apparatus and receiving apparatus based on visible light communication technology.
  • an optical communication transmitting apparatus including:
  • an encoder configured to encode and split the input signal to generate a synchronized multiplexed encoded signal
  • a driver for amplifying the multi-coded signal to generate a multi-channel driving signal
  • a plurality of light sources for generating synchronized multi-path optical signals driven by the multi-path driving signals are provided.
  • the encoder includes:
  • a signal processing module configured for analog-to-digital conversion and encoding processing of the input signal, converting the input signal into a single encoded signal
  • a signal branching module configured to convert the single encoded signal into a synchronous multiplexed encoded signal.
  • the signal processing module includes:
  • an analog to digital converter for converting an input signal into a digital signal
  • a micro control unit configured to encode the digital signal to generate a single encoded signal.
  • the signal shunting module is a multi-level non-gate cascade structure.
  • each of the encoded signals passes through the same number of non-gates from the input end of the first stage non-gate to the output end of the corresponding non-gate in the last stage non-gate.
  • the number of the Kth-level non-gates in the signal shunting module is greater than the number of the K-1-level non-gates, and each of the non-gates and the K-th order non-gates in the K-1th-level non-gates At least one non-gate in the door is connected, wherein
  • K is an integer greater than 2.
  • the optical signal transmitting device is a photonic card, and the photonic card further includes:
  • a fingerprint collection module embedded in the surface of the casing; the fingerprint collection module is electrically connected to the circuit board;
  • the circuit board drives the light source to emit a light beam carrying the user identity information
  • the encoder, the driver, and the light source are disposed on the circuit board.
  • an indicator light for indicating the working state of the photon card is soldered on the circuit board.
  • a charging interface is soldered on the circuit board.
  • the method further includes a positioning module and a wireless communication module, where the positioning module collects location information of the optical signal transmitting device, and the wireless communication module transmits the location information collected by the positioning module.
  • an emergency call module is further provided, and the emergency call module generates a call for help signal and transmits the call for help signal through the wireless communication module.
  • an optical communication receiving apparatus including a photoelectric conversion circuit, wherein the photoelectric conversion circuit includes a first-stage amplifying circuit, a second-stage amplifying circuit, and a comparison output circuit, wherein the first-stage amplifying circuit
  • the circuit is for receiving the optical signal, and converting the optical signal into a voltage signal
  • the second-stage amplifying circuit is connected in series with the first-stage amplifying circuit for receiving the voltage signal and amplifying the output thereof; comparing the output circuit with the second-order amplification
  • the circuit is connected in series for receiving the amplified voltage signal and shaping the output.
  • the primary amplification circuit includes:
  • a first operational amplifier the first operational amplifier has a non-inverting input terminal, an inverting input terminal, and an output terminal, and receives a single power supply VCC supply;
  • a photodiode having an anode terminal connected to the non-inverting input terminal of the first operational amplifier and grounded at the same time, the cathode end being connected to the inverting input end of the first operational amplifier, one end of the first resistor, and one end of the first capacitor ;
  • the secondary amplification circuit includes:
  • a second operational amplifier has a non-inverting input terminal, an inverting input terminal and an output terminal, and receives a single power supply VCC, and the non-inverting input terminal receives a voltage of VCC/2;
  • a second capacitor and a third resistor are connected in series between the output of the first operational amplifier and the inverting input of the second operational amplifier in the primary amplification circuit;
  • a fourth resistor connected between the voltage of VCC/2 and the non-inverting input of the second operational amplifier.
  • the comparison output circuit includes:
  • the third operational amplifier has a non-inverting input terminal, an inverting input terminal and an output terminal, receives a single power supply VCC supply, the non-inverting input terminal receives the comparison voltage, and the inverting input terminal is connected to the second amplification circuit.
  • the output of the op amp is connected to the third amplification circuit.
  • the optical communication receiving device is a light control lock, and the light control lock further comprises a lock body;
  • the photoelectric conversion circuit sends a shackle signal to the lock body
  • the lock body includes a lock tongue, a buckle and a driver, and the driver is connected with the lock tongue, and is configured to drive the lock tongue to exit the lock after receiving the shackle signal.
  • the optical communication receiving device further includes a display cabinet, and the light control lock is disposed on the display cabinet.
  • optical communication transmitting apparatus and the receiving apparatus have the following beneficial effects: Fully utilizing the advantages of visible optical communication, the communication speed is fast, and the security is high.
  • FIG. 1 is a block diagram showing the structure of an optical communication transmitting apparatus according to a preferred embodiment of the present invention
  • FIG. 2 is a block diagram showing the structure of the encoder of FIG. 1;
  • FIG. 3 is a structural block diagram of the signal processing module of FIG. 2;
  • FIG. 4 is a structural block diagram of the signal branching module of FIG. 2;
  • FIG. 5 is a structural block diagram of the driver of FIG. 1;
  • 6 a to 6 c are circuit diagrams of LED driving units
  • FIG. 7 is a schematic exploded view of a photonic card according to a preferred embodiment of the present invention.
  • FIG. 8 is a schematic structural view of a panel of the photonic card of FIG. 7;
  • FIG. 9 is a schematic structural view of a top portion of a panel of the photonic card of FIG. 7;
  • FIG. 10 is a schematic side view showing the structure of the panel of the photonic card of FIG. 7;
  • FIG. 11 is a schematic structural view of a photonic card after removing a panel according to a preferred embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of a light lock system according to a preferred embodiment of the present invention.
  • FIG. 13 is a schematic diagram showing the relationship between an optical key and an intelligent terminal of a light lock system according to a preferred embodiment of the present invention.
  • FIG. 14 is a schematic diagram showing the relationship between an optical key and a door lock of a light lock system according to a preferred embodiment of the present invention.
  • 15 is a schematic structural diagram of a light control lock system according to a preferred embodiment of the present invention.
  • 16 is a circuit schematic diagram of a photoelectric conversion circuit according to a preferred embodiment of the present invention.
  • FIG. 17 is a schematic structural diagram of an optoelectronic receiver according to a preferred embodiment of the present invention.
  • FIG. 18 is a schematic diagram of a light control lock function module according to a preferred embodiment of the present invention.
  • FIG. 19 is a schematic diagram of a functional module of a display cabinet system according to a preferred embodiment of the present invention.
  • the optical signal transmitting apparatus includes: an encoder 101, a driver 102, and a plurality of light sources 103.
  • the encoder 101 is for encoding an input signal, and dividing the encoded signal into a multiplexed encoded signal and outputting it to the driver 102.
  • the driver 102 is configured to separately amplify the multiplexed signals and output them to the corresponding light source 103.
  • Light source 103 is operative to generate synchronized multi-path optical signals driven by said multi-drive signals.
  • the input signal is an electrical signal, which may be an audio signal, a video signal, a mixed signal of video and audio, or the like.
  • the light source may be a fluorescent lamp, a light emitting diode, a laser diode or the like.
  • the input signal is, for example, an audio signal
  • the light source is, for example, a general LED illumination lamp.
  • the encoder 101 includes an audio input interface 208, an audio input module 203, a signal processing module 202, a signal branching module 201, and a signal output interface 209.
  • the encoder 101 may further include a power interface 205 and a power converter 204 for powering internal circuits, a switch 206 for controlling power and power off, and a fan 207 for providing cooling.
  • the power converter 204 is connected to the external power source through the switch 206 and the power port 205, and the external power source is 220V AC power.
  • the power converter 204 is configured to convert 220V AC power into 5V DC power for powering the signal branching module 201, the signal processing module 202, and the fan 207.
  • the fan 207 is used for heat dissipation.
  • the audio input module 203 receives an audio signal through the audio input interface 208 to implement an input of the audio signal, and outputs the signal to the signal processing module 202.
  • the audio input interface 208 is a standard video input interface (ie, an RCA interface) ) is currently the most common audio and video terminal block.
  • the signal processing module 202 performs analog-to-digital conversion and encoding processing on the audio signal, and outputs the encoded signal converted into a digital signal and output to the signal branching module 201.
  • the signal branching module 201 divides the encoded signal into synchronized multiplexed encoded signals.
  • the signal splitting module 201 divides the single encoded signal into 128 identical encoded signals.
  • the signal branching module 201 is output to the driver 102 through a plurality of signal output interfaces 209.
  • the signal output interface 209 is a 9-pin D-type data interface (DB9) male port.
  • the audio input interface 208 and the audio input module 203 are described.
  • the encoder 101 is not limited to processing audio signals.
  • the input signal is an electrical signal, which may be an audio signal, a video signal, a mixed signal of video and audio, or the like.
  • a corresponding type of input interface and input module can be employed so that a corresponding electrical signal can be input.
  • the signal processing module 202 includes an amplifier 301, an analog to digital converter (ADC) 302, and a Micro Control Unit (MCU) 303.
  • the audio signal is amplified by an amplifier 301 and converted to a digital signal by an analog to digital converter 302.
  • the micro control unit 303 performs encoding processing on the digital signal to output a single encoded signal.
  • the communication between the analog to digital converter 302 and the micro control unit 303 employs a serial peripheral interface protocol (S
  • the signal shunt module is a multi-level non-gate cascade structure.
  • the signal shunt module utilizes a four-level non-gate to implement the shunt function.
  • the first stage includes a NOT gate 401 for receiving a single encoded signal.
  • the second stage includes two NOT gates, which are a non-gate 402 and a NOT gate 403 connected to the pre-stage NOT gate 401, thereby dividing the single-channel encoded signal into two paths.
  • the third stage includes 16 non-gates 404, which are respectively a first group of 8 non-gates connected to the pre-stage non-gate 402, and a second group of 8 non-gates connected to the pre-stage non-gate 403, thereby taking 2 ways.
  • the coded signal is divided into 16 channels.
  • the fourth level consists of 128 non-gates 405, each of which is divided into 16 groups. Each group of non-gates is connected to a non-gate of the previous stage, thereby dividing the 16 encoded signals into 128 encoded signals.
  • the single encoded signal is split into 128 encoded signals.
  • For each coded signal there are 4 non-gates from the input to the output through the first-level non-gate to the fourth-level non-gate. Since the delay of each non-gate is the same, each output is compared to the single encoded signal input at the input.
  • the coded signals all experience the same delay, thereby achieving splitting and synchronous modulation of the multiplexed coded signals.
  • the driver includes a driver board 501, a signal input interface 508, and a signal output interface 509.
  • the drive 102 may further include a power interface 507 and a power converter 502 for powering internal circuits, a switch 506 for controlling power and power down, and a fan 505 for providing cooling.
  • the power converter 502 is connected to an external 220V AC power source via the switch 506 and the power interface 507 to convert 220V AC power to 30V DC power for powering the driving board 501.
  • the driving board 501 includes a plurality of LED driving units for generating driving signals according to the encoded signals.
  • the signal input interface 508 is a plurality of DB9 males, and the signal output interface 509 employs a plurality of RCA females.
  • the signal input interface 508 includes four DB9 males, the drive board 501 includes 32 LED drive units, and the signal output interface 509 includes 32 RCA interfaces, so that the driver 102 can drive 32 illuminations with 4 input signals. diode.
  • the LED driver unit U1 employs a gate driver UCC27531DBV that is commercially available from Texas Instruments.
  • the enable terminal of the gate driver UCC27531DBV is connected to 5V DC
  • the VDD terminal is connected to 30V DC
  • the GND terminal is connected to ground
  • the IN terminal is used as the input terminal
  • the OUTH terminal is used as the output terminal
  • the OUTL terminal is connected.
  • Capacitor C4 is connected in series between 5V DC and ground.
  • Capacitor Cl, capacitor C2, and capacitor C3 are connected in parallel between 30V DC and ground.
  • the size of the capacitor C1 is lnF
  • the size of the capacitor C2 is O.l F
  • the size of the capacitor C3 is 10 ⁇
  • the size of the capacitor C4 is l F.
  • the enable terminal of the LED driving unit U1 is always at a high level. Receiving the multi-channel encoded signal from the signal input interface 2108, and then transmitting the single-channel encoded signal of the multi-coded signal to the input end of the corresponding one of the LED driving units U1, amplifying the encoded signal, and then outputting as a driving signal from the output terminal .
  • the optical signal transmitting apparatus proposed by the present invention can realize large-area optical signal coverage by synchronously modulating and driving a plurality of visible light signal sources.
  • the input signal is encoded and shunted.
  • the cascaded non-gates are used to implement the signal splitting module such that each signal experiences the same delay, thereby enabling splitting and synchronous modulation of the multiplexed encoded signal.
  • the optical signal solves the problem that the optical signal coverage of the existing optical communication system is limited.
  • the ordinary LED illumination lamp is used as the light source, and the communication and illumination are integrated, and the structure is simple and easy to implement.
  • FIG. 7 is a view showing an exploded structure of a preferred embodiment of the photonic card of the present invention.
  • the photonic card includes a card-type casing composed of a panel 701 and a backing plate 702, that is, the entire casing has a rounded rectangular structure, and a cavity is formed inside the casing.
  • the upper part of FIG. 7 is the top of the photonic card, and a circuit board 707 is mounted in the casing.
  • an illuminant for transmitting a light beam carrying identity information is disposed at a top position of the photonic card, and the illuminant is preferably an LED lamp.
  • the LED lamp 704 can be electrically connected to the circuit board by soldering, bonding, etc.; and an indicator light 703 for displaying the working state of the photon card, the indicator light also works with the LED.
  • the photon card further includes a fingerprint collection module 705 located in the middle area, and the fingerprint collection module 705 is electrically connected to the relevant chip circuit on the circuit board 707.
  • a fingerprint button 320 is also interposed between the fingerprint collection module 705 and the circuit board 707.
  • the function of the button silica gel 320 is to provide the fingerprint collection module 320 with the effect of pressing back, so that the fingerprint collection module 705 does not access the circuit when the button is not pressed, and after the pressing is completed, the fingerprint collection module 705 is restored. Bounce up.
  • the cardholder presses the finger on the fingerprint collection module 705, so that the fingerprint collection module 705 is connected to the circuit, and the fingerprint information is collected by the fingerprint collection module 705.
  • the electrical signal is compared and verified with the information stored in the chip of the circuit.
  • the LED lamp 704 emits light, and is driven by the relevant chip on the circuit board 707 to emit a light beam carrying the identity information of the card holder.
  • the beam is carried in the manner of carrying the identity information, the transmission and reception of the identity information can be completed without approaching the reading device. Achieve long-distance work, especially for access control identification.
  • FIG. 8 is a schematic front structural view of the panel 701 in the embodiment of FIG. 7.
  • the panel is an unsealed shell made of metal or plastic, and a rectangular through hole is milled therein as a fitting hole of the fingerprint collection module, and its shape and size are matched with the fingerprint collection module, so that the fingerprint collection module can Embed on the surface of the housing.
  • a smaller through hole is also provided as the indicator fitting hole 802, and its shape and size are consistent with the indicator light.
  • a semi-circular protrusion 801 is also formed corresponding to the position of the LED lamp of the board. The function of the protrusion 801 is to protect the LED lamp.
  • a charging hole 1001 as shown in FIG. 10 is disposed, and the shape and position of the charging hole 1001 are matched with the charging interface on the circuit board.
  • the charging interface adopts a standardized USB interface, and correspondingly, the charging hole 1001 is also set to the shape of a standard USB interface. .
  • the photon card provided by the present invention is a schematic structural view after the panel is removed.
  • the circuit board and the battery 1105 closely fill the space inside the casing.
  • the plurality of chips 1104 on the circuit board are arranged in different areas on the circuit board instead of being centrally arranged to realize Increase the internal space utilization as much as possible, thus reducing the overall size of the photonic card.
  • the top of the circuit board is arranged with an LED lamp 1102 and an indicator light 1101, and the bottom is a USB interface 1103.
  • the middle portion of the circuit board corresponds to a pressing area of the fingerprint collection module, and two of the pressing areas are
  • the chips 1104 are disposed on the sides, respectively, so that the components on the overall circuit board are compactly arranged.
  • the plurality of chips described above may include the following types: a chip for converting the collected fingerprint into an encrypted electrical signal, a chip for driving the LED to emit light, and the like.
  • the internal circuit board and the battery 1105 are fixed on the panel of the circuit board instead of being processed at the edge of the board.
  • the circuit board and the battery 1105 are positioned at various locations by screws or rivets to secure the circuit board and battery 1105 to the interior of the housing, while the edges of the circuit board and battery 1105 are closely attached to the housing.
  • the overall shape of the casing conforms to the internal circuit board and the like to form a thin card shape, and the overall photonic card thickness is comparable to the height of the USB interface, and the carrying experience is compared with the existing one.
  • the inductive card is close to; and the light beam carrying the identity information is used for identity verification, and the operation distance is much larger than that of the electromagnetic induction type card, and has the advantage of remotely verifying the identity.
  • the optical key 1201 includes a positioning module 1204, a lighting module 1207, and a main control module 120 5 .
  • the driving module 1206 and the wireless communication module 1208, the door lock comprises an optical signal receiving module 1209, a control module 1210 and a door lock body 1211.
  • the main control module 1205 controls the driving module 1206 to drive the lighting module 1207 to emit an optical signal containing information, and the positioning module 1204 For collecting position information of the optical key, the main control module 120
  • the control wireless communication module 1208 transmits the location information to the smart terminal 1203.
  • the smart terminal 1203 is configured to receive the location information transmitted by the wireless communication module 1208 and display the location information.
  • the optical key 1201 of the present embodiment is preferably a light key worn by a child, and the user of the smart terminal 1203 is a parent (and a guardian, or a teacher, etc.).
  • the smart terminal 1203 is a mobile phone, and the parent can obtain the current geographic location information of the child by viewing the location map displayed by the mobile phone.
  • the wireless communication module can also transmit other information related to the optical key, which may be information of the optical key's own attributes and related information of the optical key holder.
  • FIG. 13 is a schematic diagram showing the relationship between an optical key and an intelligent terminal of the optical lock system of the present invention.
  • the wireless transceiver module 1309 of the smart terminal 1302 is configured to receive The location information sent by the wireless communication module 1307 is sent to the control processing module 1311.
  • the smart terminal 1302 includes a history track module (not shown) in addition to the wireless transceiver module 1309. The history track module is connected to the control processing module 1311.
  • the control processing module 1311 controls the display module 131 0 to display the historical trajectory of the position of the optical key 1301 in the predetermined segment. In this way, parents can query the trajectory of children in any interval.
  • the optical key 1301 further includes an emergency call module 1304, the emergency call module 1304 is configured to generate a call for help signal, and the main control module 1305 controls the wireless communication module 1307 to send the call for help signal to the pre-stored smart terminal 1302.
  • the wireless receiving module 1309 controls the processing module 1311 to respond according to the emergency call signal.
  • the optical lock system further includes at least one standby mobile terminal. After the emergency call module 1304 is activated, the main control module 1305 is further configured to control the wireless when the pre-stored smart terminal does not respond to the emergency call signal.
  • the communication module 1307 sends a distress signal to the alternate mobile terminal.
  • the emergency call module 1304 is configured as an SOS button.
  • the child In the event of a danger, the child only needs to press and hold the SOS button to call the preset number in turn until a contact is connected. At the same time, the location information will be sent to parents in the form of SMS, WeChat, QQ information, etc.
  • the smart terminal 1302 further includes a monitoring module 1312.
  • the optical key 1301 further includes an audio collection module 1306.
  • the audio collection module 1306 is configured to collect audio information within a predetermined range of the optical key 1301.
  • the main control module 1305 controls the wireless communication module 1307 to send the audio information to the wireless transceiver module 1 309.
  • the control processing module 1311 controls the listening module 1312 to play a corresponding sound according to the audio information.
  • a plurality of smart terminals can be set to monitor and manage them to prevent an abnormality of a single monitoring number from being contacted.
  • the parent carrying the smart terminal 1302 can hear the sound within 10 meters around the optical key 1301, and can understand the environmental condition of the child.
  • the smart terminal 1302 further includes a safety distance module (not shown), and the safety distance module is connected to the main control module 1305, and is configured to determine, according to the location information, whether the optical key 1301 is within a predetermined distance range. Inside, and when the optical key 1301 exceeds a predetermined distance range, a prompt message is generated. For example, in crowded places such as shopping malls, plazas, downtown areas, subway stations, etc., once the child exceeds the safety distance, the safety distance module will generate a prompt message (such as a sounding device through a speaker or buzzer to play the prompt), to prevent The child is lost.
  • a prompt message such as a sounding device through a speaker or buzzer to play the prompt
  • the safety zone is set to a radius of 50 meters centered on the smart terminal 1302, and the range is gradually increased with the increase of the age; when in the case of the home, the security zone is set to be intelligent.
  • the terminal has a center radius of 1301 meters, and in a mixed environment, the safety area is adjusted to 20 meters.
  • control processing module 1311 can calculate the number of motion steps of the child in the predetermined time according to the position information of the child in the predetermined time zone, thereby controlling the display module 1310 to display the corresponding number of motion steps. . By inquiring about the number of exercise steps the child has every day, parents can encourage their children to exercise more when they are not exercising.
  • the smart terminal 1302 further includes a step management module (not shown), the step management module is connected to the control processing module 1311, and the optical key 1301 further includes a motion counter module (in the figure) Not shown), the motion pedometer module is configured to collect the number of motion steps of the carrier of the optical key 1301 in the predetermined time interval, and the main control module 1305 controls the wireless communication module 1307 to send the motion step number information to the wireless transceiver module 130 9. Further, the control processing module 1311 controls the display module 1310 to display the corresponding number of motion steps. Parents can encourage their children to exercise more by looking up their child's daily exercise steps.
  • the smart terminal 1302 further includes an information editing module (not shown in the figure, the information editing module is connected to the control processing module 1311), and the optical key 1301 further includes an audio playing module 1308.
  • the main control module 1305 controls the wireless communication module 1 307, the text information is sent to the wireless communication module 1307, the audio playing module is configured to receive the text information, convert the text information into a voice and play the same; or, the information editing module is used to generate the voice information, and the main control module 1305 controls the wireless communication module 1307.
  • the voice information is sent to the wireless communication module 1307, and the prompting module is configured to receive the voice information and play it.
  • the light lock system has all of the above functions.
  • parents can turn off unwanted features by setting them up.
  • the light key can be made into a relatively thin card, for example, as thin as a school card, so that it can be carried by children and students.
  • the surface of the card can be set according to the situation, "SOS emergency call”, “one-touch call”, “sports meter” Steps and other touch keys allow children to accurately distinguish.
  • FIG. 14 is a schematic diagram showing the relationship between an optical key and a door lock of the optical lock system of the present invention.
  • the optical key 1401 further includes a light emitting module 1407, and the light emitting module 1407 is used.
  • the optical key 1401 further includes a password setting module 1403, a main control module 1404, and a driving module 1408.
  • the password setting module 1403 is configured to set a shackle password, which may be a button type information input module or a touch screen, etc.
  • the main control module 1404 is configured to receive the password information transmitted by the password setting module 1403, and form the encoded data according to the password information and encode the code.
  • the data is stored in the memory of the main control module 1404; the drive module 1408 drives the illumination module 1407 to emit an optical signal containing information under the control of the level modulation signal of the main control module 1404.
  • the light emitted by the light emitting module 1407 may be visible light or invisible light.
  • the light emitting module 1407 is a light emitting diode capable of emitting visible light, and is continuously driven by the driving module 1408 to perform high-speed flashing to form a representative 0.
  • the optical signal of the 1 signal thus the invention can also provide illumination in the communication peer.
  • the light-emitting diode is a semiconductor light-emitting source, which has the advantages of high brightness, high reliability, low energy loss, small size, green environmental protection, better modulation performance and high response sensitivity.
  • the door lock 1402 includes an optical signal receiving module 1409, a door lock body 1412, a conditioning circuit 303, a microcontroller 1 410 (ie, a control module), and a display module 1411.
  • the optical signal receiving module 1409 is configured to receive an optical signal and control the gate.
  • the lock body 1412 is turned on or off. After receiving the optical signal, the optical signal receiving module 1409 converts the optical signal into a current signal; the conditioning circuit 303 is configured to convert the current signal into a voltage signal, and amplify the voltage signal to restore the original data; the microcontroller 1410 is configured to The door lock body 1412 is controlled according to the voltage signal outputted by the conditioning circuit 303.
  • the door lock body 1412 can be connected by a relay, a motor and a lock connected to the motor.
  • the door lock body 1412 is a prior art and will not be described herein.
  • the display module 1411 is configured to display the number of times the door lock body 1412 is turned on or off.
  • the password setting module 1403 is provided with a shackle button. After the shackle button is pressed, the main control module 1404 is triggered by the shackle button, and then sends a level modulation signal to the driving module 1408 according to the encoded data, and the driving module 1408 is at the level.
  • the illumination module 1407 is driven to emit an optical signal containing information under the control of the modulation signal.
  • the microcontroller 1410 stores standard data for comparison with the data transmitted from the optical key 1401. After the microcontroller 1410 receives the data transmitted by the optical key 1401, the data is compared with the data in the microcontroller 1410. The standard data is compared. If the standard data in the microcontroller 1410 matches the received data, the microcontroller 1410 controls the door lock body 1412 to perform a slamming action. If the data received by the microcontroller 1410 does not match the stored standard data, it is determined whether the data is new password data set by the password setting module 1403, and if it is new password data, the password data is replaced with the original standard data. And the data is stored in the microprocessor 1410 as standard data, and if it is not new password data, it is not locked.
  • the child only needs to carry the light key, and the parent can grasp the current position information and historical track information of the child, and can monitor the sound around the environment where the child is located.
  • the child's position exceeds the preset safety distance and gets an alarm, the child can activate the emergency call function when he is in danger. It is necessary for the parents and children to talk.
  • the safety of the child can be greatly guaranteed.
  • the implementation of optical key management and child safety management In addition, in the case of loss of the optical key, through its GPS positioning information, the optical key can be found and avoided, and safety hazards and economic losses are avoided.
  • FIG. 15 is a schematic structural diagram of the optical lock system of the present embodiment, including an optical key 1502, a light control electronic lock 1503, and at least one intelligent terminal 1501.
  • the optical key 1502 outputs an LED optical signal
  • the optical control electronic lock 15 03 Receive the LED light signal and determine whether to slam or lock the electronic lock.
  • the positioning module 156 of the optical key 1502 is used to collect the location information of the optical key 1502.
  • the main control module 1504 sends the location information to the smart terminal 1501 through the wireless communication module 1505.
  • the smart terminal 1501 is configured to receive the location information and display the location information. .
  • the wireless transceiver module of the smart terminal 1501 receives the location information sent by the wireless communication module 1505 and sends the location information to the control processing module.
  • the smart terminal 1501 includes the wireless transceiver module.
  • the historical track module is further connected to the control processing module, and is configured to calculate a historical track of the position of the optical key in the predetermined segment according to the position information sent by the wireless communication module 1505, and the control processing module controls the display module to display the predetermined time segment.
  • the historical trajectory of the position of the light key In this way, parents can query the trajectory of children in any segment.
  • the optical key further includes an emergency call module
  • the emergency call module is configured to generate a call for help signal
  • the main control module 1504 controls the wireless communication module 1505 to send the call for help signal to the wireless reception of the pre-stored smart terminal 1 501.
  • the module, the control processing module controls the prompting module to respond according to the emergency call signal.
  • the optical lock system further includes at least one standby mobile terminal. After the emergency call module is activated, the main control module 1504 is further configured to control the wireless when the pre-stored smart terminal 1501 does not respond to the emergency call signal.
  • the communication module 1505 sends a distress signal to the alternate mobile terminal.
  • the emergency call module is set as an SOS button, and in the event of a danger, the child only needs to press and hold the SOS button, and then sequentially calls the preset number until a contact is connected. ⁇ , location information will be sent to parents in the form of SMS, WeChat, QQ information.
  • the smart terminal 1501 further includes a monitoring module
  • the optical key further includes an audio collection module
  • the audio collection module is configured to collect audio information within a predetermined range of the optical key
  • the main control module 1504 controls the wireless communication module.
  • the 1505 sends the audio information to the wireless transceiver module, and the control processing module controls the monitoring module to play the corresponding sound according to the audio information.
  • multiple intelligent terminals 1501 can be set to monitor and manage it to prevent an abnormal single alarm number from being contacted.
  • the parent carrying the smart terminal 1501 can hear the sound within the circumference of the optical key, and can understand the environmental condition of the child.
  • the smart terminal 1501 further includes a safety distance module (not shown), and the safety distance module is connected to the main control module 1504, for determining whether the optical key is within a predetermined distance according to the position information. And generate a message when the optical key is outside the predetermined distance range. For example, in crowded places such as shopping malls, plazas, downtown areas, subway stations, etc., once the child exceeds the safety distance, the safety distance module will generate a prompt message (such as a sounding device through a speaker or buzzer to play the prompt), to prevent The child is lost.
  • a safety distance module (not shown)
  • the safety distance module is connected to the main control module 1504, for determining whether the optical key is within a predetermined distance according to the position information. And generate a message when the optical key is outside the predetermined distance range. For example, in crowded places such as shopping malls, plazas, downtown areas, subway stations, etc., once the child exceeds the safety distance, the safety distance module will generate a prompt message (such as a sounding
  • the safety zone is set to a range with the radius of the smart terminal 1501 as the center, and the range is gradually increased as the age increases; when in the case of the home, the security zone is set to the smart terminal.
  • 1501 is the range of the center radius of the meter, but in the mixed market Environment ⁇ , adjust the safety zone to meters.
  • control processing module may calculate the number of motion steps of the child in the predetermined time interval according to the position information of the child in the predetermined time zone, thereby controlling the display module to display the corresponding motion step condition.
  • Parents can encourage their children to exercise more by looking up their child's daily exercise steps.
  • the smart terminal 1501 further includes a step management module (not shown), the step management module is connected to the control processing module, and the optical key further includes a motion counter module (not shown)
  • the motion counting module is configured to collect the number of motion steps of the carrier of the optical key in the predetermined time interval, and the main control module 150 4 controls the wireless communication module 1505 to send the motion step number information to the wireless transceiver module, and then, the control processing
  • the module control display module displays the corresponding number of motion steps.
  • the smart terminal 1501 further includes an information editing module (not shown, the information editing module is connected to the control processing module), the optical key further includes an audio playing module, and the information editing module is configured to generate text.
  • the main control module 1504 controls the wireless communication module 1505 to send the text information to the wireless communication module 1505, and the audio playback module is configured to receive the text information, convert the text information into a voice and play the same; or, the information editing module uses
  • the main control module 1504 controls the wireless communication module 1505 to send the voice information to the wireless communication module 1505, and the prompting module is configured to receive the voice information and play it.
  • the information editing module also generates image information (such as photos, pictures), and the main control module 1504 controls the wireless communication module 1505 to send the image information to the wireless communication module 1505, and the prompting module is configured to receive the image information and display it.
  • the light lock system has all of the above functions.
  • parents can turn off unwanted features by setting them up.
  • the light key can be made into a relatively thin card, for example, as thin as a school card, so that it can be carried by children and students.
  • the surface of the card can be set according to the situation, "SOS emergency call”, “one-touch call”, “sports meter” Steps and other touch keys allow children to accurately distinguish.
  • the optical key 1502 can simply output LED light that blinks at a certain frequency, and the LE D light that blinks at a certain frequency forms a shackle password; meanwhile, the optical key 1502 can also receive user information and encode it into a binary code. Digital encoding, the optical key 1502 corresponds to the binary digital encoding output LED light flashing at a certain frequency, The user's information may be user fingerprint, user voice, user pupil information, and the like.
  • the main control module 1504 of the optical key 1502 can control the password unit 1507 to generate a password for the optical control electronic lock, and the optical key further includes a lock password conversion module 1508 for converting the lock password into an LED optical signal.
  • the LED optical signal wireless communication module 13 for transmitting the optical signal converted by the shackle cipher conversion module 1508, and for supplying power to the main control module 1504, the shackle cipher conversion module 1508, the LED optical signal wireless communication module 13, and the like
  • the cryptographic unit 1507 includes: a shackle cipher compiling module for generating a shackle password by compiling, and a shackle cipher storage module for storing the shackle password input in advance.
  • a shackle cipher compiling module for generating a shackle password by compiling
  • a shackle cipher storage module for storing the shackle password input in advance.
  • two types of shackle password generating modules are provided, which respectively correspond to different shackles.
  • the binary digital encoding is converted into an LED optical signal by the conversion module 1508; when the user directly uses the internally stored binary digital code as the shackle password ⁇ , after the user activates the key 1502, the ⁇ lock password storage module will store The binary digital code is converted to an LED optical signal by a shackle code conversion module 1508.
  • optical key 1502 of the embodiment of the present invention can be used alone as a device, or can be integrated into a device such as a mobile phone or a tablet computer with its own LED lamp.
  • the light control electronic lock 1503 includes an optical signal receiving module 1511 for receiving an LED light signal, a control module and a door lock body 1510, and the control module includes an LED light signal for receiving the LED light signal receiving module 1511.
  • An optical signal decoding module 1512 that is decoded into binary data
  • an activation module 1514 for enabling the optical control electronic lock according to the binary data decoded by the optical signal decoding module 1512
  • an optical signal for the optical signal receiving module 1511 The decoding module 1512 and the second power module 1 515 powered by the module 1514 further include a backup power module 1513 as the second power module 1515.
  • the optical control electronic lock 1503 decodes the LED optical signal, and the decoding process is: first converting the LED optical signal into a current signal, and then the current signal is subsequently Converted to a voltage signal, when the voltage is high (rising edge) ⁇ , such as 5V or 3.3V ⁇ , is regarded as a digital signal
  • ⁇ such as 5V or 3.3V ⁇
  • the rising edge, when the voltage is low (falling edge), that is, 0V ⁇ , is regarded as the low level of the digital signal, and the digital signal composed of high and low levels is decoded by Manchester to form binary data.
  • the present invention is also provided with a backup power supply module 1513. Since all the operating power sources of the light-controlled electronic lock 1503 are electric energy, when the power is off, the light-controlled electronic lock 1503 will lose its meaning.
  • the backup power module 1 513 can be a battery or other form of power storage module. When the power is off, the backup power module 1513 supplies power to the optical control electronic lock. After the call, the backup power module 1513 automatically cuts off to save power.
  • the present invention uses an optical signal for lock control, because the user can see the range of visible light illumination, can accurately emit the LED light signal, and does not have to worry about the LED light signal being intercepted by a person, resulting in password leakage, greatly improving safety. And user experience.
  • the difference between this embodiment and the first embodiment mainly lies in the circuit structure design of the optical key 1502 and the optical control electronic lock 1503.
  • the user information is first converted into a binary digital code by the cipher coding module, and the binary digital code is converted into an LED optical signal by the conversion module 1508, which highlights the coding and conversion process of the cipher;
  • the password setting module is provided with a shackle button. After pressing the shackle button, the main control module is triggered by the shackle button, and then sends a level modulation signal to the driving module according to the encoded data, and the driving module drives the illuminating under the control of the level modulation signal.
  • the module emits an optical signal containing information that highlights the function of the shackle button to prevent shackles if the user does not wish to slam the lock.
  • the second embodiment further highlights the role of the backup power module 151 3 in combination with the second power module 1515.
  • the backup power module 1513 supplies power to the optical control electronic lock. After the call is made, the backup power module 1513 automatically cuts off. In order to save energy, the normal use of the door lock system is ensured in this way.
  • an optical communication receiving apparatus is provided.
  • the optical communication receiving device is responsive to the optical communication transmitting device in the foregoing, and performs corresponding actions, such as a light control lock, a light control display cabinet, and the like.
  • the core is a photoelectric conversion circuit that is placed inside.
  • the photoelectric conversion circuit comprises a primary amplification circuit 1601, a secondary amplification circuit 1602 and a comparison output circuit 1603.
  • the circuit is mainly composed of a photodiode, an operational amplifier, a resistor, a capacitor and the like.
  • the first-stage amplifying circuit 1601 includes: an operational amplifier 0A1 that receives a single power supply VCC, and adopts a single-ended operation mode. The non-inverting input is grounded, the inverting input receives photocurrent, and the output outputs Voutl.
  • the primary amplification circuit 1601 further includes a photodiode PD, a resistor R1, and a capacitor Cl.
  • anode end of the photodiode PD is connected to the non-inverting input terminal of the operational amplifier OA1, and is connected to the ground, the cathode end and the inverting input terminal of the operational amplifier OA1, the first end of the resistor R1, and the first capacitor C1. Connected to each other;
  • the first end of the resistor R1 and the first end of the capacitor C1 are connected to the inverting input terminal of the operational amplifier OA1, and the second end of the resistor R1 and the second end of the capacitor C1 are connected to the output end of the operational amplifier OA1.
  • the photodiode PD is used to receive the optical signal, and then converted into a current signal, and input to the operational amplifier ⁇ 1, and the OA1 and the resistor R1 and the capacitor C1 form a transimpedance amplifying circuit.
  • the current signal is converted into a voltage signal, and then the voltage signal is output to the secondary amplification circuit 102.
  • the current to voltage amplification can be adjusted by adjusting the size of R1, and the ripple of the signal is suppressed by adjusting the size of C1.
  • a plurality of photodiodes PD may be used to form an array to enhance photocurrent.
  • the two-stage amplifying circuit 1602 includes: an operational amplifier OA2 that receives a single power supply VCC, and operates in a single-ended manner.
  • the inverting input receives the output of the primary amplifier circuit Voutl, and the non-inverting input receives the voltage VCC/
  • the secondary amplification circuit 1602 further includes a capacitor C2 and resistors R2 to R4.
  • the capacitor C2 and the resistor R3 are connected in series between the output terminal Vout1 of the first-stage amplifying circuit 1601 and the inverting input terminal of the operational amplifier OA2; the resistor R2 is connected between the inverting input terminal and the output terminal of the operational amplifier 0A2; Between the voltage VCC/2 and the non-inverting input of operational amplifier OA2.
  • the secondary amplification circuit 1602 is for amplifying the voltage signal.
  • Capacitor C2 is used to high-pass filter the input voltage signal. By adjusting the size of C2, the cut-off frequency of high-pass filtering and the response speed to changes in ambient light intensity can be adjusted.
  • Signal amplification uses inverting amplification.
  • Resistor R4 is the balance resistor, and the size of R4 is the resistance of R2 and R3 in parallel.
  • the comparison output circuit 1603 includes an operational amplifier OA3 that receives a single power supply VCC supply, in a single-ended mode of operation.
  • the inverting input receives the output Vout2 of the secondary amplifying circuit 1602, and the non-inverting input receives the comparative electric Press Vcompare, the output outputs OUTPUT.
  • the comparison output circuit 1603 is for shaping the voltage signal.
  • the waveform of the output signal can be adjusted by adjusting Vcompare, and the shaped signal can be output to the processor for digital signal processing.
  • the operational amplifier-based photoelectric conversion circuit provided by the invention has simple structure, good performance and low cost
  • the optoelectronic receiver includes a photoelectric conversion circuit and a light receiving module.
  • the photoelectric conversion circuit is configured to receive an optical signal, and convert the optical signal into a voltage signal
  • the light receiving module is configured to receive a voltage signal output by the photoelectric conversion circuit.
  • an optical control lock of the present application includes an optical path assembly and a lock body.
  • the optical circuit component is configured to receive an optical signal from the optical key, convert the optical signal into a shackle signal, and output the signal to the driver of the lock body.
  • the lock body includes a lock tongue, a lock and a driver, and the drive is connected with the lock tongue, and is used to drive the lock tongue to exit the lock after receiving the shackle signal.
  • the optical path assembly includes an optical signal receiver and an optical signal converter.
  • the optical signal receiver is configured to receive an optical signal emitted by the optical key.
  • the optical signal converter is configured to convert the optical signal into a shackle signal, and the shackle signal may include a shackle password.
  • the shackle password can include biometric information such as fingerprint, pulse, heartbeat, iris, or string.
  • the above optical signal receiver and optical signal converter can also be replaced with a photoelectric converter.
  • the optical path assembly can further include a signal processor that processes the shackle signal to obtain information carried therein.
  • the light lock of the present application may further include a controller for receiving a shackle signal from the optical signal converter, and outputting the shackle signal to the driver of the lock body after the ⁇ lock code is correct.
  • the display case of the present application may also include other receivers, such as a radio frequency receiver, an infrared receiver, etc., to be compatible with a variety of tricks.
  • the light lock may further include a memory for holding the shackle record and transmitting the shackle record to the server.
  • the shackle record may include a shackle password number, a shackle, and the shackle record may also include other registered information about the shackle, such as name, mobile number, position, and the like. Because the shackle password number can correspond to the person who uses the shackle password, by looking at the number of the shackle password used, you can know who the shackle is.
  • the light lock can also include a wireless transmitter for transmitting The wireless signal allows interaction and feedback with the shackles.
  • the above-mentioned light lock can be used in various security situations, and is used as a display cabinet or the like.
  • an embodiment of the display cabinet system of the present application includes a display cabinet and a light control lock, and the light control lock is disposed on the display cabinet.
  • the display cabinet comprises a cabinet;
  • the light control lock comprises an optical path assembly and
  • the lock body comprises an optical path assembly and a lock body.
  • the optical path component is configured to receive an optical signal from the optical key, convert the optical signal into a shackle signal, and output the signal to the driver of the lock body.
  • the lock body includes a lock tongue, a lock and a driver, and the drive is connected with the lock tongue, and is configured to drive the lock tongue to exit the lock after receiving the shackle signal.
  • the light lock of the present application may further include a controller for receiving a shackle signal from the optical signal converter, and outputting the shackle signal to the driver of the lock body after the ⁇ lock code is correct.
  • the display case of the present application may also include other receivers, such as a radio frequency receiver, an infrared receiver, etc., to be compatible with a variety of tricks.
  • the display cabinet system of the present application may further include a server, configured to receive a shackle signal from the optical signal converter, and compare with a pre-stored shackle password on the server, in the shackle
  • the shackle signal is output to the controller, and the controller further drives the driver of the lock body to drive the lock tongue to exit the lock.
  • the light lock is also used to determine whether to cause the lock tongue to exit the lock according to the comparison result, and send the lock record to the server.
  • the server is also used to receive shackles. In the case of abnormal shackles, the server can notify the optical key, and notify the optical key to vibrate and alarm on the optical key.
  • the optical path assembly includes an optical signal receiver and an optical signal converter.
  • the optical signal receiver is configured to receive an optical signal emitted by the optical key.
  • the optical signal converter is configured to convert the optical signal into a shackle signal, and the shackle signal may include a shackle password.
  • the above optical signal receiver and optical signal converter can also be replaced with a photoelectric converter.
  • the optical path assembly can further include a signal processor that processes the shackle signal to obtain information carried therein.
  • the light lock can also include a memory for holding the shackle record.
  • the shackle record can include a shackle password number, a shackle, and the like.
  • the shackle password number can correspond to the person who uses the shackle password. By checking the number of the shackle password used, you can know who the shackle is. Or the shackle record is only saved on the server, or it is saved in the light lock and server.
  • the display cabinet of the present application can be used for displaying or selling a variety of commodities, such as a jewelry display cabinet, a cultural relic display cabinet, a perfume display cabinet, a valuables display cabinet, or other display cabinets.
  • a jewelry display cabinet such as a jewelry display cabinet, a cultural relic display cabinet, a perfume display cabinet, a valuables display cabinet, or other display cabinets.
  • Exhibition The display cabinet is a jewelry display cabinet.
  • the server and the display cabinet can be connected through a TCP/IP protocol, and the server and the display cabinet can also be wirelessly connected, such as using a connection method such as WiFi or Bluetooth.
  • the display cabinet system of the present application may further include a light key, the light key includes a light emitting device, and the light emitting device is configured to convert the shackle signal into an optical signal and transmit the light to the light control lock.
  • the shackle signal includes a shackle password
  • the shackle password may include biological information such as a fingerprint, a pulse, a heartbeat, an iris, or a character string.
  • the password sent by the optical key must first be saved on the server or / and controller.
  • the optical key can be a dedicated device, or a wearable device such as a wristband, or a portable mobile electronic device such as a cell phone, PAD or notebook.

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Abstract

本发明涉及一种光通信发射装置及接收装置。其中该光通信发射装置，包括：编码器，用于对输入信号进行编码和分路处理，以产生同步的多路编码信号；驱动器，用于将多路编码信号放大，以产生多路驱动信号；以及多个光源，用于在多路驱动信号的驱动下，产生同步的多路光信号。本发明所提供的光通信发射装置及接收装置充分利用可见光通信的优势，通信的速度快，安全性高。

Description

说明书 发明名称：一种光通信发射装置及接收装置 技术领域
[0001] 本发明通信技术， 更具体的说， 涉及一种光通信发射装置及接收装置。
背景技术
[0002] 光通信技术是以光为载波来传播信号的通信技术， 包括光纤通信技术和可见光 通信技术。 在光纤通信技术中， 采用激光二极管或发光二极管作为光源， 以及 采用光纤作为光传递介质。 在可见光通信中， 采用荧光灯或发光二极管作为光 源， 以及采用空气作为光传递介质。 不论光纤通信技术还是可见光通信技术， 在发射装置都需要将信息叠加或调制在光载波上， 从而发射调制的光信号， 在 接收装置对光信号进行解调， 以获取信息。
[0003] 近年来， 可见光通信越来越受到关注。 可见光通信设备包括作为发射装置的光 信号发射装置和作为接收装置的光信号接收装置。 可见光通信设备将信息调制 成光载波的强度变化， 利用光的闪烁信号来传递信息。 由于光载波的强度变化 频率很高， 人眼甚至感觉不到光的闪烁。 可见光通信可以利用室内照明设备代 替无线 LAN局域网基站发射信号， 从而可以兼具照明和通信的功能。 可见光通 信的通信速度可达每秒数十兆至数百兆。 只要是在灯光照射到的地方， 就可以 高速地上传或下载。 多台电脑使用也不会影响通信速度。 可见光通信技术还具 有安全性高的特点， 只要将光遮挡住， 信息就不会泄露。
技术问题
[0004] 本发明提供一种基于可见光通信技术的光通信发射装置和接收装置。
[0005] 根据本发明的第一个方面， 提供一种光通信发射装置， 包括：
[0006] 编码器， 用于对输入信号进行编码和分路处理， 以产生同步的多路编码信号；
[0007] 驱动器， 用于将多路编码信号放大， 以产生多路驱动信号； 以及
[0008] 多个光源， 用于在多路驱动信号的驱动下， 产生同步的多路光信号。
问题的解决方案
技术解决方案 [0009] 进一步的， 编码器包括：
[0010] 信号处理模块， 用于输入信号的模数转换和编码处理， 将输入信号转变成单路 编码信号； 以及
[0011] 信号分路模块， 用于将单路编码信号转变成同步的多路编码信号。
[0012] 进一步的， 信号处理模块包括：
[0013] 放大器， 用于放大输入信号；
[0014] 模数转换器， 用于将输入信号转换为数字信号； 以及
[0015] 微控制单元， 用于对数字信号进行编码， 以产生单路编码信号。
[0016] 进一步的， 信号分路模块为多级的非门级联结构。
[0017] 进一步的， 在信号分路模块中， 从第一级非门的输入端至最后级非门中的相应 非门的输出端， 每路编码信号均经过相同数量的非门。
[0018] 进一步的， 信号分路模块中的第 K级非门的数量大于第 K-1级非门的数量， 并 且， 第 K-1级非门中的每一个非门与第 K级非门中的至少一个非门相连接， 其中
K为大于 2的整数。
[0019] 进一步的， 光信号发射装置为光子卡， 光子卡还包括：
[0020] 壳体；
[0021] 密接在壳体内的电路板；
[0022] 嵌入到壳体表面的指纹采集模块； 指纹采集模块与电路板电连接；
[0023] 指纹采集模块采集指纹后， 电路板驱动光源发出携带用户身份信息的光束；
[0024] 编码器、 驱动器、 光源设置在电路板上。
[0025] 进一步的， 电路板上焊接有用于指示光子卡工作状态的指示灯。
[0026] 进一步的， 电路板上焊接有充电接口。
[0027] 进一步的， 还包括定位模块和无线通信模块， 定位模块采集光信号发射装置的 位置信息， 无线通信模块将定位模块采集的位置信息发射出去。
[0028] 进一步的， 还包括紧急呼救模块， 紧急呼救模块产生呼救信号并通过无线通信 模块将呼救信号发射出去。
[0029] 本发明的另一个方面， 提供一种光通信接收装置， 包括光电转换电路， 光电转 换电路包括一级放大电路、 二级放大电路和比较输出电路， 其中， 一级放大电 路用于接收光信号， 并将光信号转换成电压信号； 二级放大电路， 与一级放大 电路串联连接， 用于接收电压信号， 并对其进行放大输出； 比较输出电路， 与 二级放大电路串联连接， 用于接收放大后的电压信号， 并进行整形输出。
[0030] 进一步的， 一级放大电路包括：
[0031] 第一运算放大器， 第一运算放大器具有同相输入端、 反相输入端和输出端， 接 收单电源 VCC供给；
[0032] 光电二极管， 其阳极端与第一运算放大器的同相输入端相连， 且同吋接地， 阴 极端与第一运算放大器的反相输入端、 第一电阻的一端以及第一电容的一端相 连；
[0033] 第一电阻和第一电容， 并联连接在第一运算放大器的反相输入端和输出端之间 [0034] 进一步的， 二级放大电路包括：
[0035] 第二运算放大器， 第二运算放大器具有同相输入端、 反相输入端和输出端， 接 收单电源 VCC供给， 同相输入端接收 VCC/2的电压；
[0036] 第二电阻， 连接在第二运算放大器的反相输入端和输出端之间；
[0037] 第二电容和第三电阻， 串联连接在一级放大电路中第一运算放大器的输出端和 第二运算放大器的反相输入端之间；
[0038] 第四电阻， 连接在 VCC/2的电压和第二运算放大器的同相输入端之间。
[0039] 进一步的， 比较输出电路包括：
[0040] 第三运算放大器， 第三运算放大器具有同相输入端、 反相输入端和输出端， 接 收单电源 VCC供给， 同相输入端接收比较电压， 反相输入端连接二级放大电路 中第二运算放大器的输出端。
[0041] 进一步的， 光通信接收装置为光控锁， 光控锁还包括锁本体；
[0042] 光电转换电路向锁本体发送幵锁信号；
[0043] 锁本体包括锁舌、 锁扣和驱动器， 驱动器与锁舌连接， 用于收到幵锁信号后驱 动锁舌退出锁扣。
[0044] 进一步的， 光通信接收装置还包括展示柜， 光控锁设置在展示柜上。
发明的有益效果 有益效果
[0045] 本发明所提供光通信发射装置和接收装置具有以下的有益效果： 充分利用可见 光通信的优势， 通信的速度快， 安全性高。
对附图的简要说明
附图说明
[0046] 图 1为本发明一则较佳实施例的光通信发射装置的结构框图；
[0047] 图 2为图 1中编码器的结构框图；
[0048] 图 3为图 2中信号处理模块的结构框图；
[0049] 图 4为图 2中信号分路模块的结构框图；
[0050] 图 5为图 1中驱动器的结构框图；
[0051] 图 6 a至 6c为 LED驱动单元的电路图；
[0052] 图 7为本发明一则较佳实施例的光子卡的爆炸结构示意图；
[0053] 图 8为图 7中的光子卡的面板结构示意图；
[0054] 图 9为图 7中的光子卡的面板顶部结构示意图；
[0055] 图 10为图 7中的光子卡的面板侧面结构示意图；
[0056] 图 11为本发明一则较佳实施例的光子卡的去除面板之后的结构示意图；
[0057] 图 12为本发明一则较佳实施例的光控锁系统的结构示意图；
[0058] 图 13为本发明一则较佳实施例的光控锁系统的光钥匙、 智能终端的关系示意图
[0059] 图 14为本发明一则较佳实施例的光控锁系统的光钥匙、 门锁的关系示意图；
[0060] 图 15为本发明一则较佳实施例的光控锁系统的结构示意图；
[0061] 图 16为本发明一则较佳实施例的光电转换电路的电路原理图；
[0062] 图 17为本发明一则较佳实施例的光电接收机的结构示意图；
[0063] 图 18为本发明一则较佳实施例的光控锁功能模块示意图；
[0064] 图 19为本发明一则较佳实施例的展示柜系统功能模块示意图。 本发明的实施方式
[0065] 以下基于实施例对本发明进行描述， 但是本发明并不仅仅限于这些实施例。 在 下文对本发明的细节描述中， 详尽描述了一些特定的细节部分。 对本领域技术 人员来说没有这些细节部分的描述也可以完全理解本发明。 为了避免混淆本发 明的实质， 公知的方法、 过程、 流程、 元件和电路并没有详细叙述。 此外， 本 领域普通技术人员应当理解， 在此提供的附图都是为了说明的目的， 并且附图 不一定是按比例绘制的。
[0066] 除非上下文明确要求， 否则整个说明书和权利要求书中的 "包括"、 "包含 "等类 似词语应当解释为包含的含义而不是排他或穷举的含义； 也就是说， 是"包括但 不限于 "的含义。 在本发明的描述中， 需要理解的是， 术语"第一"、 "第二 "等仅 用于描述目的， 而不能理解为指示或暗示相对重要性。 此外， 在本发明的描述 中， 除非另有说明， "多个"的含义是两个或两个以上。
[0067] 图 1为本发明提出的光信号发射装置的实施例的结构框图。 如图 1所示， 光信号 发射装置包括： 编码器 101、 驱动器 102以及多个光源 103。
[0068] 编码器 101用于对输入信号进行编码， 以及将编码后的信号分路处理， 形成多 路编码信号， 并输出到驱动器 102。 驱动器 102用于将多路编码信号分别进行放 大， 并输出到相应的光源 103。 光源 103用于在所述多路驱动信号的驱动下， 产 生同步的多路光信号。
[0069] 输入信号为电信号， 可以是音频信号、 视频信号、 视音频的混合信号等。 光源 可以是荧光灯、 发光二极管、 激光二极管等。 在本实施例中， 输入信号例如为 音频信号， 光源例如为普通 LED照明灯。
[0070] 图 2为编码器 101的结构框图。 编码器 101包括音频输入接口 208、 音频输入模块 203、 信号处理模块 202、 信号分路模块 201、 信号输出接口 209。 编码器 101还可 以进一步包括用于为内部电路供电的电源接口 205和电源转换器 204， 用于控制 供电和断电的幵关 206， 以及用于提供冷却的风扇 207。
[0071] 电源转换器 204通过幵关 206和电源接口 205连接外部电源， 外部电源为 220V的 交流电。 电源转换器 204用于将 220V的交流电转变为 5V的直流电， 用于为信号分 路模块 201、 信号处理模块 202、 风扇 207供电。 风扇 207用于散热。
[0072] 音频输入模块 203通过音频输入接口 208接收音频信号实现音频信号的输入， 并 输出到信号处理模块 202。 音频输入接口 208为标准视频输入接口 （即 RCA接口 ) ， 是目前最常见的音频和视频接线端子。
[0073] 信号处理模块 202对音频信号进行模数转换以及编码处理， 并将转变成数字信 号并经过编码的编码信号输出到信号分路模块 201。
[0074] 信号分路模块 201将编码信号分为同步的多路编码信号。 在本实施例中， 信号 分路模块 201将单路编码信号分为 128路相同的编码信号。 信号分路模块 201通过 多个信号输出接口 209输出到驱动器 102。 优选地， 信号输出接口 209为 9针 D型数 据接口 (DB9)公口。
[0075] 在上述实施例中， 描述了音频输入接口 208和音频输入模块 203。 然而， 该编码 器 101不限于处理音频信号。 如上所述， 输入信号为电信号， 可以是音频信号、 视频信号、 视音频的混合信号等。 因此， 在替代的实施例中， 可以采用相应类 型的输入接口和输入模块， 使得可以输入相应的电信号。
[0076] 图 3为信号处理模块 202的结构框图。 信号处理模块 202包括放大器 301、 模数转 换器 (Analog to Digital Converter, ADC)302以及微控制单元 (Micro Control Unit, MCU)303。 音频信号经过放大器 301放大后， 经模数转换器 302转换为数字 信号。 微控制单元 303将所述数字信号进行编码处理， 从而输出单路编码信号。 优选地， 模数转换器 302和微控制单元 303之间的通信采用串行外设接口协议 （S
Figure imgf000008_0001
[0077] 图 4为信号分路模块的结构框图。 信号分路模块是多级非门级联结构。 在该实 施例中， 信号分路模块利用四级非门实现分路功能。
[0078] 第一级包括一个非门 401， 用于接收单路编码信号。 第二级包括两个非门， 分 别是与前级非门 401相连接的非门 402、 非门 403， 从而将单路编码信号分为 2路 。 第三级包括 16个非门 404， 分别是与前级非门 402相连接的第一组 8个非门， 与 前级非门 403相连接的第二组 8个非门， 从而将 2路编码信号分为 16路。 第四级包 括 128个非门 405， 每 8个一组， 分成 16组。 每组的非门分别是与前级一个非门相 连接， 从而将 16路编码信号分为 128路编码信号。
[0079] 在信号分路模块中， 将单路编码信号分路成 128路编码信号。 对于每路编码信 号， 从输入端至输出端均经由第一级非门至第四级非门共计 4个非门。 由于每个 非门的延迟是相同的， 因此， 相对于在输入端输入的单路编码信号， 每路输出 编码信号均经历了相同的延迟， 从而实现了多路编码信号的分路和同步调制。
[0080] 图 5为驱动器的结构框图。 驱动器包括驱动板 501、 信号输入接口 508、 信号输 出接口 509。 驱动器 102还可以进一步包括用于为内部电路供电的电源接口 507和 电源转换器 502， 用于控制供电和断电的幵关 506， 以及用于提供冷却的风扇 505
[0081] 电源转换器 502通过幵关 506和电源接口 507连接外部的 220V交流电源， 将 220V 交流电转换为 30V直流电， 用于为驱动板 501供电。
[0082] 驱动板 501包括多个 LED驱动单元， 用于根据编码信号产生驱动信号。 信号输 入接口 508为多个 DB9公头， 信号输出接口 509采用多个 RCA母座。 在一个实施例 中， 信号输入接口 508包括 4个 DB9公头， 驱动板 501包括 32个 LED驱动单元， 信 号输出接口 509包括 32个 RCA接口， 从而驱动器 102可以采用 4路输入信号驱动 32 个发光二极管。
[0083] 图 6a至 6c为驱动板 2101中的 LED驱动单元 U1的电路图。 在一个实施例中， LED 驱动单元 U1采用可以从美国德州仪器购买的闸极驱动器 UCC27531DBV。 闸极驱 动器 UCC27531DBV的使能端 EN接 5V直流电， VDD端接 30V直流电， GND端接 地， IN端作为输入端， OUTH端作为输出端， OUTL端空接。 电容 C4串联在 5V直 流电和地之间， 电容 Cl、 电容 C2、 电容 C3并联在 30V直流电和地之间。 其中， 电容 C1的大小为 lnF， 电容 C2的大小为 O.l F, 电容 C3的大小为 10μΡ， 电容 C4的 大小为 l F。
[0084] 该 LED驱动单元 U1的使能端始终处于高电平。 从信号输入接口 2108接收多路编 码信号， 然后将多路编码信号中的单路编码信号传送至相应的一个 LED驱动单元 U1的输入端， 对编码信号进行放大， 然后作为驱动信号从输出端输出。
[0085] 本发明提出的光信号发射装置通过同步调制和驱动多个可见光信号源可以实现 大面积的光信号覆盖。 在该光信号发射装置的编码器中， 对输入信号进行编码 和分路处理。 在优选的实施例中， 采用级联的非门实现信号分路模块， 使得每 路信号经历相同的延迟， 从而实现了多路编码信号的分路和同步调制。 该光信 号解决了现有光通信系统的光信号覆盖范围有限的问题采用普通 LED照明用灯作 为光源， 集通信和照明于一体， 结构简单， 容易实现。 [0086] 作为上述的光信号发射装置的一个具体实现例子， 可以是用于门禁系统的卡片 型光钥匙一光子卡。 如图 7所示为本发明光子卡一则较佳实施例的爆炸结构图 。 光子卡包括由面板 701和背板 702组成的卡片式壳体， 即整个壳体呈圆角矩形 结构， 其壳体内部形成空腔。 以图 7的上方为光子卡的顶部， 在壳体内封装有电 路板 707， 电路板 707上， 位于光子卡的顶部位置设置有用于发送携带身份信息 的光束的发光体， 发光体优选为 LED灯 704， 该 LED灯 704可以采用焊接、 粘接等 方式与电路板电连接； 以及用于显示光子卡工作状态的指示灯 703， 该指示灯同 样采用 LED进行工作。 光子卡还包括位于中间区域的指纹采集模块 705， 该指纹 采集模块 705与电路板 707上的相关芯片电路电连接， 在指纹采集模块 705与电路 板 707之间， 还夹设有一块按键硅胶 320， 该按键硅胶 320的作用是， 为指纹采集 模块 320提供按压回弹的效果， 使得指纹采集模块 705在未按压的吋候不接入电 路中， 并在按压完成之后， 使指纹采集模块 705恢复弹起。
[0087] 使用该光子卡进行身份验证的吋候， 持卡人将手指按压在指纹采集模块 705上 ， 使得指纹采集模块 705接入电路， 幵始工作， 指纹采集模块 705采集到的指纹 信息转换成电信号， 并与电路中相关芯片存储的信息进行比较校验， 校验成功 之后， LED灯 704发光， 由电路板 707上的相关芯片驱动， 发出携带有持卡人身份 信息的光束。
[0088] 由于采用了光束携带身份信息的方式进行工作， 无需靠近读取设备就能够完成 身份信息的发送、 接收。 实现了远距离的工作， 尤其适用于门禁识别。
[0089] 进一步的， 上述实施例中的各个部件的具体结构如下描述。 如图 8所示为图 7实 施例中的面板 701的正面结构示意图。 面板为一个金属或者塑料制成的未封盖壳 体， 其中部銑出一长方形的通孔， 作为指纹采集模块适配孔， 其形状与大小跟 指纹采集模块相适配， 使得指纹采集模块能够嵌入到壳体的表面上。 在面板上 ， 还幵设有一较小的通孔， 作为指示灯适配孔 802， 其形状、 大小均与指示灯相 一致。 在面板上， 对应于电路板的 LED灯的位置， 还形成一个半圆形的突起 801 。 该突起 801的作用是保护 LED灯， 如图 9所示， 由于整个面板上， 仅 LED灯的位 置形成突起， 面板的其他位置维持较薄的结构， 从而实现整体的光子卡的厚度 降低， 接近卡片的形状， 方便携带。 采用这样结构设置的面板， 持卡人在操作 上仅通过一个按键即可完成所有的操作， 操作简易。
[0090] 较佳的， 在面板的一个侧面上， 幵设了如图 10所示的充电孔 1001， 充电孔 1001 的形状、 位置与电路板上的充电接口相匹配。 为了保证充电的方便， 使得持卡 人能够很容易的找到合适的充电设备， 在本实施例中， 充电接口采用了标准化 的 USB接口， 对应的， 充电孔 1001也设置成标准的 USB接口的形状。
[0091] 如图 11所示， 为本发明所提供的光子卡在移除面板后的结构示意图。 从图 11可 知， 电路板与电池 1105紧密填充壳体内部的空间， 为了使整个空间更加紧凑， 电路板上的多块芯片 1104被布局在电路板上的不同区域， 而非集中设置， 以实 现尽可能提高内部空间利用率， 从而降低光子卡的整体体积。 如在图 11中， 电 路板的顶部被布局了 LED灯 1102和指示灯 1101， 底部为 USB接口 1103， 电路板的 中段区域， 中间位置对应为指纹采集模块的按压区域， 在该按压区域的两侧分 别设置芯片 1104， 使得整体的电路板上的元部件紧凑排列。
[0092] 较佳的， 上述的多块芯片可以包括以下的类型： 用于将采集到的指纹转换成加 密电信号的芯片、 用于驱动 LED发光的芯片等。
[0093] 为了尽可能减少光子卡的体积， 在内部的电路板和电池 1105的固定方式上， 采 用在电路板的面板上进行固定， 而不是在电路板的边缘进行加工。 在图 11的实 施例中， 电路板和电池 1105上的多处位置， 通过螺钉或者铆钉将电路板以及电 池 1105固定壳体的内部， 而电路板以及电池 1105的边缘则紧密贴合壳体的内侧
[0094] 由于在本发明中， 壳体的整体形状与内部的电路板等部件相吻合， 形成一个薄 卡片形状， 整体的光子卡厚度与 USB接口的高度相约， 在携带体验上与现有的感 应式卡片接近； 并且采用携带身份信息的光束进行身份验证， 操作的距离远大 于电磁感应式的卡片， 具备远距离验证身份的优势。
[0095] 如图 12所示为本发明的光控锁系统的结构示意图， 包括光钥匙 1201、 智能终端 1203和门锁 1202， 光钥匙 1201包括定位模块 1204、 发光模块 1207、 主控模块 120 5、 驱动模块 1206和无线通信模块 1208， 门锁包括光信号接收模块 1209、 控制模 块 1210和门锁主体 1211， 主控模块 1205控制驱动模块 1206驱动发光模块 1207发 射含有信息的光信号， 定位模块 1204用于采集光钥匙的位置信息， 主控模块 120 5控制无线通信模块 1208将位置信息发送至智能终端 1203; 智能终端 1203用于接 收无线通信模块 1208发射的位置信息并对位置信息进行显示。 本实施例的光钥 匙 1201优选地为儿童佩戴的光钥匙， 智能终端 1203的使用者为家长 （及监护人 ， 也可以是老师等） 。 在一种实施方式中， 智能终端 1203为手机， 家长通过査 看手机所显示的位置图， 即可获知儿童当前的地理位置信息。 无线通信模块还 可以将与光钥匙相关的其它信息发射出去， 这些信息可以是光钥匙自身属性的 信息以及光钥匙持有人的相关信息等。
[0096] 如图 13所示为本发明光控锁系统的光钥匙、 智能终端的关系示意图， 结合图 12 和图 13， 在一种实施方式中， 智能终端 1302的无线收发模块 1309用于接收无线 通信模块 1307所发送的位置信息并发送至控制处理模块 1311， 智能终端 1302除 包括无线收发模块 1309外， 还包括历史轨迹模块 （图中未示出） ， 历史轨迹模 块与控制处理模块 1311连接， 用于根据无线通信模块 1307发送的位置信息计算 预定吋段内光钥匙 1301的位置的历史轨迹， 控制处理模块 1311控制显示模块 131 0显示预定吋段内光钥匙 1301的位置的历史轨迹。 这样， 家长就能査询任意吋间 段内孩子的活动轨迹。
[0097] 在一种实施方式中， 光钥匙 1301还包括紧急呼救模块 1304， 紧急呼救模块 1304 用于产生呼救信号， 主控模块 1305控制无线通信模块 1307将呼救信号发送至预 存的智能终端 1302的无线接收模块 1309， 控制处理模块 1311控制提示模块 1313 根据紧急呼救信号做出响应。 在一种实施方式中， 光控锁系统还包括至少一个 备用的移动终端， 紧急呼救模块 1304启动后， 主控模块 1305还用于在预存的智 能终端未响应紧急呼救信号的情况下， 控制无线通信模块 1307向备用的移动终 端发送呼救信号。 在一种实施方式中， 紧急呼救模块 1304设置为一个 SOS按键， 在出现危险的情况下， 儿童只需长按 SOS按键， 则依次呼叫预先设定的号码， 直 至接通一位联系人为止， 同吋， 位置信息将以短信、 微信、 QQ信息等形式发送 给家长。
[0098] 在一种实施方式中， 智能终端 1302还包括监听模块 1312， 光钥匙 1301还包括音 频采集模块 1306， 音频采集模块 1306用于采集距离光钥匙 1301预定范围内的音 频信息， 主控模块 1305控制无线通信模块 1307将音频信息发送至无线收发模块 1 309， 控制处理模块 1311控制监听模块 1312根据音频信息播放相应的声音。 对于 一个光钥匙 1301， 可以设置多个智能终端对其进行监听管理， 以防止单一的监 听号码出现异常而无法联系。 在一种实施方式中， 幵启监听功能后， 携带智能 终端 1302的家长可以听到光钥匙 1301周围 10米以内的声音， 可以实吋了解儿童 所处的环境状况。
[0099] 在一种实施方式中， 智能终端 1302还包括安全距离模块 （图中未示出） ， 安全 距离模块连接至主控模块 1305， 用于根据位置信息判断光钥匙 1301是否处于预 定距离范围内， 并在光钥匙 1301超出预定距离范围吋产生提示信息。 例如， 在 商场、 广场、 闹市区、 地铁站等人群拥挤的场所， 一旦孩子超出安全距离， 安 全距离模块,便会产生提示信息 （如通过扬声器或蜂鸣器等发声设备进行播放提 示） ， 防止小孩走丢。 对于年齢偏小的儿童， 安全区域设置为以智能终端 1302 为中心半径为 50米的范围， 随着年齢的增大将范围逐渐增大； 当在自己家的情 况下， 将安全区域设置为以智能终端为中心半径为 1301米的范围， 而处于人员 混杂的闹市环境吋， 将安全区域调整为 20米。
[0100] 在一种实施方式中， 控制处理模块 1311根据儿童在预定吋间内的位置信息可以 计算出儿童在预定吋间内的运动步数， 进而控制显示模块 1310显示相应的运动 步数情况。 家长通过査询孩子每天的运动步数， 在孩子运动不勤的吋候， 可以 鼓励孩子多多运动。
[0101] 在一种实施方式中， 智能终端 1302还包括计步管理模块 （图中未示出） ， 计步 管理模块连接至控制处理模块 1311， 光钥匙 1301还包括运动计步模块 （图中未 示出） ， 运动计步模块用于采集光钥匙 1301的携带者在预定吋间内的运动步数 ， 主控模块 1305控制无线通信模块 1307将运动步数信息发送至无线收发模块 130 9， 进而， 控制处理模块 1311控制显示模块 1310显示相应的运动步数情况。 家长 通过査询孩子每天的运动步数， 在孩子运动不勤的吋候， 可以鼓励孩子多多运 动。
[0102] 在一种实施方式中， 智能终端 1302还包括信息编辑模块 （图中未示出， 信息编 辑模块与控制处理模块 1311连接） ， 光钥匙 1301还包括音频播放模块 1308; 信 息编辑模块用于产生文字信息并将文字信息， 主控模块 1305控制无线通信模块 1 307将文字信息发送至无线通信模块 1307， 音频播放模块用于接收文字信息， 将 文字信息转换成语音并进行播放； 或者， 信息编辑模块用于产生语音信息， 主 控模块 1305控制无线通信模块 1307将语音信息发送至无线通信模块 1307， 提示 模块用于接收语音信息并进行播放。
[0103] 本发明的一个较佳实施例中， 光控锁系统具有上述所有功能。 另外， 家长还可 以通过设置， 关闭不需要的功能。
[0104] 光钥匙可以做成比较薄的卡片， 例如像学校的一卡通那样薄， 以便于儿童及学 生携带， 卡片的表面可根据情况设置 "SOS紧急求救"、 "一键通话"、 "运动计步" 等触摸键， 使儿童能够准确分辨。
[0105] 如图 14所示为本发明光控锁系统的光钥匙、 门锁的关系示意图， 除定位模块 14 06和无线通信模块 1405外， 光钥匙 1401还包括发光模块 1407， 发光模块 1407用 于发射含有信息的光信号， 另外， 光钥匙 1401还包括密码设置模块 1403、 主控 模块 1404、 驱动模块 1408。 密码设置模块 1403用于设置幵锁密码， 其可以是按 键式信息输入模组或触摸屏等； 主控模块 1404用于接收密码设置模块 1403传过 来的密码信息， 根据密码信息形成编码数据并将编码数据存储在主控模块 1404 的存储器内； 驱动模块 1408在主控模块 1404的电平调制信号的控制下驱动发光 模块 1407发射含有信息的光信号。
[0106] 发光模块 1407发射的光可以是可见光或不可见光， 本实施例中， 发光模块 1407 是可发射可见光的发光二极管， 其在驱动模块 1408的驱动下不断进行高速的闪 灭， 形成代表 0和 1信号的光信号， 因而本发明在通信的同吋还可提供照明。 发 光二级管是半导体发光光源， 不仅亮度高、 可靠性高、 能量损耗低、 尺寸小、 绿色环保， 更具有调制性能好、 响应灵敏度高等优点。
[0107] 门锁 1402包括光信号接收模块 1409、 门锁主体 1412、 调理电路 303、 微控制器 1 410 (即控制模块） 及显示模块 1411， 光信号接收模块 1409用于接收光信号并控 制门锁主体 1412幵启或关闭。 光信号接收模块 1409接收到光信号后， 将光信号 转换成电流信号； 调理电路 303用于将电流信号转换成电压信号， 并将电压信号 放大， 从而还原出原始数据； 微控制器 1410用于根据调理电路 303输出的电压信 号控制门锁主体 1412， 门锁主体 1412可由继电器、 电机及与电机传动连接的锁 舌等部件构成， 门锁主体 1412为现有技术， 在此不再赘述。 显示模块 1411用于 显示门锁主体 1412幵启或关闭的次数。
[0108] 密码设置模块 1403设置有幵锁按钮， 按下幵锁按钮后， 主控模块 1404受幵锁按 钮触发， 然后根据编码数据发送电平调制信号给驱动模块 1408， 驱动模块 1408 在电平调制信号的控制下驱动发光模块 1407发射含有信息的光信号。
[0109] 微控制器 1410内存储有用于与光钥匙 1401传过来的数据进行对比的标准数据， 当微控制器 1410接收到光钥匙 1401传过来的数据后， 将该数据与微控制器 1410 内的标准数据进行对比。 如果微控制器 1410内的标准数据与接收到的数据相匹 配， 则微控制器 1410控制门锁主体 1412进行幵锁动作。 如果微控制器 1410接收 到的数据与其存储的标准数据不匹配， 则判断数据是否是密码设置模块 1403所 设置的新的密码数据， 如果是新的密码数据则将该密码数据替换原来的标准数 据， 并将该数据作为标准数据保存在微处理器 1410内， 如果不是新的密码数据 ， 则不予幵锁。
[0110] 通过利用本实施例的光控锁系统， 儿童只需要携带好光钥匙， 家长就可以实吋 掌握儿童的当前位置信息、 历史轨迹信息等， 并能够监听儿童所处环境周围的 声音， 在儿童的位置超过预设安全距离吋获得警报， 儿童在遇到危险吋可以幵 启紧急呼救的功能， 必要吋家长与儿童可以通话， 通过这一系列实用的功能， 可以极大地保证儿童的安全， 同吋实现了光钥匙管理和儿童安全管理。 另外， 在光钥匙丢失的情况下， 通过其 GPS定位信息， 可以及吋找到光钥匙， 避免了安 全隐患和经济损失。
[0111] 如图 15所示为本实施例的光控锁系统的结构示意图， 包括光钥匙 1502、 光控电 子锁 1503和至少一个智能终端 1501， 光钥匙 1502输出 LED光信号， 光控电子锁 15 03接收该 LED光信号并判断是否打幵或者锁定电子锁。 光钥匙 1502的定位模块 15 06用于采集光钥匙 1502的位置信息， 主控模块 1504通过无线通信模块 1505将位 置信息发送至智能终端 1501 ; 智能终端 1501用于接收位置信息并对位置信息进 行显示。
[0112] 在一种实施方式中， 智能终端 1501的无线收发模块接收无线通信模块 1505所发 送的位置信息并发送至控制处理模块， 智能终端 1501除包括无线收发模块外， 还包括历史轨迹模块， 历史轨迹模块与控制处理模块连接， 用于根据无线通信 模块 1505发送的位置信息计算预定吋段内光钥匙的位置的历史轨迹， 控制处理 模块控制显示模块显示预定吋段内光钥匙的位置的历史轨迹。 这样， 家长就能 査询任意吋间段内孩子的活动轨迹。
[0113] 在一种实施方式中， 光钥匙还包括紧急呼救模块， 紧急呼救模块用于产生呼救 信号， 主控模块 1504控制无线通信模块 1505将呼救信号发送至预存的智能终端 1 501的无线接收模块， 控制处理模块控制提示模块根据紧急呼救信号做出响应。 在一种实施方式中， 光控锁系统还包括至少一个备用的移动终端， 紧急呼救模 块启动后， 主控模块 1504还用于在预存的智能终端 1501未响应紧急呼救信号的 情况下， 控制无线通信模块 1505向备用的移动终端发送呼救信号。 在一种实施 方式中， 紧急呼救模块设置为一个 SOS按键， 在出现危险的情况下， 儿童只需长 按 SOS按键， 则依次呼叫预先设定的号码， 直至接通一位联系人为止， 同吋， 位 置信息将以短信、 微信、 QQ信息等形式发送给家长。
[0114] 在一种实施方式中， 智能终端 1501还包括监听模块， 光钥匙还包括音频采集模 块， 音频采集模块用于采集距离光钥匙预定范围内的音频信息， 主控模块 1504 控制无线通信模块 1505将音频信息发送至无线收发模块， 控制处理模块控制监 听模块根据音频信息播放相应的声音。 对于一个光钥匙， 可以设置多个智能终 端 1501对其进行监听管理， 以防止单一的监听号码出现异常而无法联系。 在一 种实施方式中， 幵启监听功能后， 携带智能终端 1501的家长可以听到光钥匙周 围米以内的声音， 可以实吋了解儿童所处的环境状况。
[0115] 在一种实施方式中， 智能终端 1501还包括安全距离模块 （图中未示出） ， 安全 距离模块连接至主控模块 1504， 用于根据位置信息判断光钥匙是否处于预定距 离范围内， 并在光钥匙超出预定距离范围吋产生提示信息。 例如， 在商场、 广 场、 闹市区、 地铁站等人群拥挤的场所， 一旦孩子超出安全距离， 安全距离模 块,便会产生提示信息 （如通过扬声器或蜂鸣器等发声设备进行播放提示） ， 防 止小孩走丢。 对于年齢偏小的儿童， 安全区域设置为以智能终端 1501为中心半 径为米的范围， 随着年齢的增大将范围逐渐增大； 当在自己家的情况下， 将安 全区域设置为以智能终端 1501为中心半径为米的范围， 而处于人员混杂的闹市 环境吋， 将安全区域调整为米。
[0116] 在一种实施方式中， 控制处理模块根据儿童在预定吋间内的位置信息可以计算 出儿童在预定吋间内的运动步数， 进而控制显示模块显示相应的运动步数情况 。 家长通过査询孩子每天的运动步数， 在孩子运动不勤的吋候， 可以鼓励孩子 多多运动。
[0117] 在一种实施方式中， 智能终端 1501还包括计步管理模块 （图中未示出） ， 计步 管理模块连接至控制处理模块， 光钥匙还包括运动计步模块 （图中未示出） ， 运动计步模块用于采集光钥匙的携带者在预定吋间内的运动步数， 主控模块 150 4控制无线通信模块 1505将运动步数信息发送至无线收发模块， 进而， 控制处理 模块控制显示模块显示相应的运动步数情况。 家长通过査询孩子每天的运动步 数， 在孩子运动不勤的吋候， 可以鼓励孩子多多运动。
[0118] 在一种实施方式中， 智能终端 1501还包括信息编辑模块 （图中未示出， 信息编 辑模块与控制处理模块连接） ， 光钥匙还包括音频播放模块； 信息编辑模块用 于产生文字信息并将文字信息， 主控模块 1504控制无线通信模块 1505将文字信 息发送至无线通信模块 1505， 音频播放模块用于接收文字信息， 将文字信息转 换成语音并进行播放； 或者， 信息编辑模块用于产生语音信息， 主控模块 1504 控制无线通信模块 1505将语音信息发送至无线通信模块 1505， 提示模块用于接 收语音信息并进行播放。 或者， 信息编辑模块还产生图像信息 （如照片、 图片 ) ， 主控模块 1504控制无线通信模块 1505将图像信息发送至无线通信模块 1505 ， 提示模块用于接收图像信息并进行显示。
[0119] 本发明的一个较佳实施例中， 光控锁系统具有上述所有功能。 另外， 家长还可 以通过设置， 关闭不需要的功能。
[0120] 光钥匙可以做成比较薄的卡片， 例如像学校的一卡通那样薄， 以便于儿童及学 生携带， 卡片的表面可根据情况设置 "SOS紧急求救"、 "一键通话"、 "运动计步" 等触摸键， 使儿童能够准确分辨。
[0121] 光钥匙 1502既可以单纯输出以一定频率闪烁的 LED光， 该以一定频率闪烁的 LE D光形成幵锁密码； 同吋， 光钥匙 1502也可以接收用户的信息并将其编码为二进 制数字编码， 光钥匙 1502对应该二进制数字编码输出以一定频率闪烁的 LED光， 该用户的信息可以是用户指纹、 用户语音、 用户瞳孔信息等。 对应数字编码输 出一定频率闪烁的 LED光的方式可以为， 例如二进制数字编码中 "1"代表 LED光 的亮起， "0"代表 LED光的熄灭， 可以想象地， 上述" 1"、 "0"对应的 LED光状态 也可以是相反状态。
[0122] 光钥匙 1502的主控模块 1504可以控制密码单元 1507生成幵启光控电子锁的密码 ， 光钥匙还包括用于将幵锁密码转换为 LED光信号的幵锁密码转换模块 1508、 用 于将幵锁密码转换模块 1508转换的光信号发射出去的 LED光信号无线通信模块 13 ， 以及用于给主控模块 1504、 幵锁密码转换模块 1508、 LED光信号无线通信模块 13等提供电源的第一电源模块 1509。
[0123] 其中， 密码单元 1507包括： 用于通过编译生成幵锁密码的幵锁密码编译模块， 用于存储事先输入的幵锁密码的幵锁密码存储模块。 本实施例设置两种幵锁密 码生成模块， 其分别对应不同的幵锁方式， 当用户采用用户信息， 例如用户指 纹、 用户语音等作为幵锁密码吋， 用户信息首先通过密码编译模块转换为二进 制数字编码， 该二进制数字编码再通过转换模块 1508转换为 LED光信号； 当用户 直接用内部存储的二进制数字编码作为幵锁密码吋， 用户幵启光钥匙 1502后， 幵锁密码存储模块就将存储的二进制数字编码通过幵锁密码转换模块 1508转换 为 LED光信号。
[0124] 需要指出的是本发明实施例的光钥匙 1502可以单独作为一个设备使用， 也可以 集成到诸如手机， 平板电脑等自带 LED灯的设备上。
[0125] 光控电子锁 1503包括用于接收 LED光信号的光信号接收模块 1511、 控制模块和 门锁主体 1510， 控制模块包括用于将所述 LED光信号接收模块 1511接收到的 LED 光信号解码为二进制数据的光信号解码模块 1512、 用于根据所述光信号解码模 块 1512解码的二进制数据幵启光控电子锁的幵启模块 1514以及用于给所述光信 号接收模块 1511、 光信号解码模块 1512以及幵启模块 1514供电的第二电源模块 1 515， 还包括作为第二电源模块 1515的备用电源模块 1513。
[0126] 在本发明实施例中， 光控电子锁 1503在接收到 LED光信号后， 对所述 LED光信 号进行解码， 解码过程为： 先将 LED光信号转换为电流信号， 电流信号接着被转 换为电压信号， 当电压为高电平 (上升沿)吋， 例如 5V或者 3.3V吋， 视为数字信号 的上升沿， 当电压为低电平 (下降沿)， 即 0V吋， 视为数字信号的低电平， 高低电 平构成的数字信号经过曼彻斯特解码后形成二进制数据。 核对该二进制数据与 光控电子锁内部存储的二进制数据是否相同， 并在核对相同的情况下幵启光控 电子锁。
[0127] 同吋， 本发明还设置有备用电源模块 1513。 由于光控电子锁 1503的所有运作动 力来源均为电能， 当停电吋， 光控电子锁 1503将失去使用意义。 备用电源模块 1 513可为一蓄电池也可为其他形式的储电模块， 当停电吋， 由备用电源模块 1513 给光控电子锁供电。 来电以后， 备用电源模块 1513自动切断以节省电能。
[0128] 本发明使用光信号进行锁控， 因为用户可以看见可见光照射的范围， 可以准确 的发射 LED光信号， 并且不必担心 LED光信号被人截取而导致密码泄露， 极大的 提升了安全性和用户体验。
[0129] 对比图 14和图 15， 本实施例与实施例一的区别点主要在于光钥匙 1502和光控电 子锁 1503的电路结构设计。 对于实施例二的密码单元 1507， 用户信息首先通过 密码编译模块转换为二进制数字编码， 该二进制数字编码再通过转换模块 1508 转换为 LED光信号， 突出了密码的编码和转换过程； 实施例一的密码设置模块设 置有幵锁按钮， 按下幵锁按钮后， 主控模块受幵锁按钮触发， 然后根据编码数 据发送电平调制信号给驱动模块， 驱动模块在电平调制信号的控制下驱动发光 模块发射含有信息的光信号， 突出了幵锁按钮的作用， 防止在用户不希望幵锁 的情况下幵锁。 实施例二还突出了与第二电源模块 1515搭配的备用电源模块 151 3的作用， 在方式停电的情况下， 由备用电源模块 1513给光控电子锁供电， 来电 以后， 备用电源模块 1513自动切断以节省电能， 通过这种方式保证了门锁系统 的正常使用。
[0130] 本发明的另一个方面， 提供了光通信接收装置。 光通信接收装置用于响应前述 中的光通信发射装置， 并进行相应的动作， 例如光控锁、 光控展示柜等。 其核 心是设置在内部的光电转换电路。
[0131] 图 16为根据本发明的光电转换电路的电路原理图。 所述光电转换电路包括一级 放大电路 1601、 二级放大电路 1602和比较输出电路 1603， 电路主要由光电二极 管、 运算放大器、 电阻、 电容等元器件组成。 [0132] 其中， 一级放大电路 1601包括： 接受单电源 VCC供给的运算放大器 0A1， 采用 单端工作方式。 同相输入端接地， 反相输入端接收光电流， 输出端输出 Voutl。
[0133] 一级放大电路 1601还包括光电二极管 PD、 电阻 Rl、 电容 Cl。
[0134] 其中， 光电二极管 PD的阳极端与运算放大器 OA1的同相输入端相连， 且同吋接 地， 阴极端与运算放大器 OA1的反相输入端、 电阻 R1的第一端以及电容 C1的第 一端相连；
[0135] 电阻 R1的第一端以及电容 C1的第一端与运算放大器 OA1的反相输入端相连， 电阻 R1的第二端以及电容 C1的第二端与运算放大器 OA1的输出端相连。
[0136] 在一级放大电路 1601中， 光电二极管 PD用于实现光信号的接收， 然后将其转 换成电流信号， 并输入到运算放大器 ΟΑ1， OA1与电阻 Rl和电容 C1组成跨阻放 大电路， 将电流信号转换为电压信号， 然后将电压信号输出到二级放大电路 102 。 其中， 通过调节 R1的大小可以调节电流到电压的放大倍数， 通过调节 C1的大 小抑制信号的纹波。
[0137] 在优选的实施例中， 可以使用多个光电二极管 PD组成阵列以增强光电流。
[0138] 二级放大电路 1602包括： 接收单电源 VCC供给的运算放大器 OA2， 采用单端工 作方式。 反相输入端接收一级放大电路的输出 Voutl , 同相输入端接收电压 VCC/
2， 输出端输出 Vout2。
[0139] 二级放大电路 1602还包括电容 C2以及电阻 R2至 R4。 电容 C2和电阻 R3串联连接 在一级放大电路 1601的输出端 Voutl和运算放大器 OA2的反相输入端之间； 电阻 R2连接在运算放大器 0A2的反相输入端和输出端之间； 电阻 R4连接在电压 VCC/ 2和运算放大器 OA2的同相输入端之间。
[0140] 二级放大电路 1602用于实现电压信号的放大。 电容 C2用于对输入的电压信号进 行高通滤波， 通过调节 C2的大小可以调节高通滤波的截止频率和对环境光强变 化的响应速度。 信号放大采用反相放大， 通过调节电阻 R2和 R3的大小可以调节 增益系统， 增益 G=l+R2/R3。 电阻 R4为平衡电阻， R4的大小为 R2和 R3并联后的 阻值。
[0141] 比较输出电路 1603包括接收单电源 VCC供给的运算放大器 OA3， 采用单端工作 方式。 反相输入端接收二级放大电路 1602的输出 Vout2， 同相输入端接收比较电 压 Vcompare, 输出端输出 OUTPUT。
[0142] 比较输出电路 1603用于实现电压信号的整形。 通过调节 Vcompare可以调节输出 信号的波形， 整形后的信号可输出至处理器进行数字信号处理。
[0143] 本发明提供的基于运算放大器的光电转换电路， 结构简单， 性能良好， 成本低
， 可以满足非对准可见光通信和白光 LED光通信的需求。
[0144] 图 17为根据本发明的光电接收机的结构示意图。 所述光电接收机包括光电转换 电路和光接收模块。
[0145] 所述光电转换电路用于接收光信号， 将所述光信号转换成电压信号；
[0146] 所述光接收模块用于接收所述光电转换电路输出的电压信号。
[0147] 如图 18所示， 本申请的光控锁， 其一种实施方式， 包括光路组件和锁本体。 光 路组件， 用于接收光钥匙发出的光信号， 将光信号转换为幵锁信号并输出至锁 本体的驱动器。 锁本体包括锁舌、 锁扣和驱动器， 驱动器与锁舌连接， 用于收 到幵锁信号后驱动锁舌退出锁扣。
[0148] 在一种实施方式中， 光路组件包括光信号接收器和光信号转换器。 光信号接收 器， 用于接收光钥匙发出的光信号。 光信号转换器， 用于将光信号转换为幵锁 信号， 幵锁信号可以包括幵锁密码。 幵锁密码可以包括指纹、 脉搏、 心跳、 虹 膜等生物信息， 或者字符串等。 上述的光信号接收器和光信号转换器也可以使 用光电转换器来替代。 在另一种实施方式中， 光路组件还可包括信号处理器， 对幵锁信号进行处理， 以获得其中携带的信息。
[0149] 本申请的光控锁还可以包括控制器， 控制器用于接收来自光信号转换器的幵锁 信号， 在幵锁密码正确吋， 输出幵锁信号至锁本体的驱动器。 本申请的展示柜 还可以包括其他接收器， 例如射频接收器、 红外接收器等， 以便兼容多种幵门 方式。
[0150] 在一种实施方式中， 光控锁还可以包括存储器， 存储器用于保存幵锁记录， 并 将幵锁记录发送给服务器。 幵锁记录可包括幵锁密码编号、 幵锁吋间， 幵锁记 录还可以包括其他注册的关于幵锁者的信息， 例如姓名、 手机号码、 职位等。 因为幵锁密码编号可与使用该幵锁密码的人对应， 通过査看幵使用的幵锁密码 的编号， 就可以知道幵锁的人是谁。 光控锁还可以包括无线发射器， 用于发送 无线信号， 从而可以与幵锁者进行互动与反馈。
[0151] 上述的光控锁可以用于多种保全场合， 作为展示柜等设备来使用。
[0152] 如图 19所示， 本申请的展示柜系统， 其一种实施方式， 包括展示柜和光控锁， 光控锁设置在展示柜上。 其中， 展示柜包括柜体； 光控锁包括光路组件和锁本 体包括光路组件和锁本体。 光路组件， 用于接收光钥匙发出的光信号， 将光信 号转换为幵锁信号并输出至锁本体的驱动器。 锁本体包括锁舌、 锁扣和驱动器 ， 驱动器与锁舌连接， 用于收到幵锁信号后驱动锁舌退出锁扣。
[0153] 本申请的光控锁还可以包括控制器， 控制器用于接收来自光信号转换器的幵锁 信号， 在幵锁密码正确吋， 输出幵锁信号至锁本体的驱动器。 本申请的展示柜 还可以包括其他接收器， 例如射频接收器、 红外接收器等， 以便兼容多种幵门 方式。
[0154] 在一种实施方式中， 本申请的展示柜系统， 还可以包括服务器， 用于接收来自 光信号转换器的幵锁信号， 并与服务器上预存的幵锁密码比对， 在幵锁密码正 确吋， 输出幵锁信号至控制器， 控制器进一步驱动锁本体的驱动器驱动锁舌退 出锁扣。 光控锁， 还用于根据比对结果确定是否使锁舌退出锁扣， 并将幵锁记 录发送给服务器。 服务器， 还用于接收幵锁记录。 在异常幵锁吋， 服务器可通 知光钥匙， 通过使光钥匙震动、 光钥匙上的报警器报警等方式进行通知。
[0155] 在一种实施方式中， 光路组件包括光信号接收器和光信号转换器。 光信号接收 器， 用于接收光钥匙发出的光信号。 光信号转换器， 用于将光信号转换为幵锁 信号， 幵锁信号可以包括幵锁密码。 上述的光信号接收器和光信号转换器也可 以使用光电转换器来替代。 在另一种实施方式中， 光路组件还可包括信号处理 器， 对幵锁信号进行处理， 以获得其中携带的信息。 光控锁还可以包括存储器 ， 存储器用于保存幵锁记录。 幵锁记录可包括幵锁密码编号、 幵锁吋间等。 其 中， 幵锁密码编号可与使用该幵锁密码的人对应， 通过査看幵使用的幵锁密码 的编号， 就可以知道幵锁的人是谁。 或者幵锁记录仅在服务器保存， 或者同吋 在光控锁与服务器保存。
[0156] 本申请的展示柜可用于展示或销售多种商品， 如可以是珠宝展示柜、 文物展示 柜、 香水展示柜、 贵重物品展示柜， 或是其他的展示柜， 在本实施方式中， 展 示柜为珠宝展示柜。
[0157] 服务器与展示柜可以通过 TCP/IP协议连接， 服务器与展示柜也可无线连接， 如 使用 WiFi、 蓝牙等连接方式。
[0158] 本申请的展示柜系统， 还可以包括光钥匙， 光钥匙包括光发射装置， 光发射装 置用于将幵锁信号转换为光信号并发送给光控锁。 幵锁信号包括幵锁密码， 幵 锁密码可以包括指纹、 脉搏、 心跳、 虹膜等生物信息， 或者字符串等。 光钥匙 发送的密码需先在服务器或 /和控制器上进行保存。 光钥匙可以是专用设备， 或 者是可穿戴式设备例如手环， 也可以是便携式移动电子设备， 例如手机， PAD 或笔记本等。

Claims

权利要求书
[权利要求 1] 一种光通信发射装置， 其特征在于， 包括：
编码器， 用于对输入信号进行编码和分路处理， 以产生同步的多路编 码信号；
驱动器， 用于将所述多路编码信号放大， 以产生多路驱动信号； 以及 多个光源， 用于在所述多路驱动信号的驱动下， 产生同步的多路光 信号。
[权利要求 2] 根据权利要求 1所述的光信号发射装置， 其特征在于， 所述编码器包 括：
信号处理模块， 用于输入信号的模数转换和编码处理， 将输入信号转 变成单路编码信号； 以及
信号分路模块， 用于将单路编码信号转变成同步的多路编码信号。
[权利要求 3] 根据权利要求 2所述的光信号发射装置， 其特征在于， 所述信号处理 模块包括：
放大器， 用于放大所述输入信号；
模数转换器， 用于将输入信号转换为数字信号； 以及
微控制单元， 用于对所述数字信号进行编码， 以产生单路编码信号。
[权利要求 4] 根据权利要求 2所述的光信号发射装置， 其特征在于， 所述信号分路 模块为多级的非门级联结构。
[权利要求 5] 根据权利要求 4所述的光信号发射装置， 其特征在于， 在所述信号分 路模块中， 从第一级非门的输入端至最后级非门中的相应非门的输出 端， 每路编码信号均经过相同数量的非门。
[权利要求 6] 根据权利要求 5所述的光信号发射装置， 其特征在于， 所述信号分路 模块中的第 K级非门的数量大于第 K-1级非门的数量， 并且， 第 K-1级 非门中的每一个非门与第 K级非门中的至少一个非门相连接， 其中 Κ 为大于 2的整数。 根据权利要求 1所述的光信号发射装置， 其特征在于， 所述光信号发 射装置为光子卡， 所述光子卡还包括：
壳体；
密接在所述壳体内的电路板；
嵌入到所述壳体表面的指纹采集模块； 所述指纹采集模块与所述电路 板电连接；
所述指纹采集模块采集指纹后， 电路板驱动所述光源发出携带用户身 份信息的光束；
所述编码器、 驱动器、 光源设置在所述电路板上。 根据权利要求 7所述的光信号发射装置， 其特征在于， 所述电路板上 焊接有用于指示所述光子卡工作状态的指示灯。 根据权利要求 7所述的光子卡， 其特征在于， 所述电路板上焊接有充 电接口。 根据权利要求 1所述的光信号发射装置， 其特征在于， 还包括定位模 块和无线通信模块， 所述定位模块采集所述光信号发射装置的位置信 息， 所述无线通信模块将所述定位模块采集的位置信息发射出去。 根据权利要求 10所述的光信号发射装置， 其特征在于， 还包括紧急呼 救模块， 所述紧急呼救模块产生呼救信号并通过所述无线通信模块将 所述呼救信号发射出去。 一种光通信接收装置， 其特征在于， 包括光电转换电路， 所述光电转 换电路包括一级放大电路、 二级放大电路和比较输出电路， 其中， 一 级放大电路用于接收光信号， 并将所述光信号转换成电压信号； 二级 放大电路， 与一级放大电路串联连接， 用于接收所述电压信号， 并对 其进行放大输出； 比较输出电路， 与二级放大电路串联连接， 用于接 收放大后的电压信号， 并进行整形输出。
[权利要求 13] 根据权利要求 12所述的光通信接收装置， 其特征在于， 所述一级放大 电路包括：
第一运算放大器， 所述第一运算放大器具有同相输入端、 反相输入端 和输出端， 接收单电源 VCC供给；
光电二极管， 其阳极端与第一运算放大器的同相输入端相连， 且同吋 接地， 阴极端与第一运算放大器的反相输入端、 第一电阻的一端以及 第一电容的一端相连； 第一电阻和第一电容， 并联连接在第一运算放大器的反相输入端和输 出端之间。
[权利要求 14] 根据权利要求 13所述的光通信接收装置， 其特征在于， 所述二级放大 电路包括：
第二运算放大器， 所述第二运算放大器具有同相输入端、 反相输入端 和输出端， 接收单电源 VCC供给， 同相输入端接收 VCC/2的电压； 第二电阻， 连接在第二运算放大器的反相输入端和输出端之间； 第二电容和第三电阻， 串联连接在一级放大电路中第一运算放大器的 输出端和第二运算放大器的反相输入端之间；
第四电阻， 连接在 VCC/2的电压和第二运算放大器的同相输入端之间
[权利要求 15] 根据权利要求 14所述的光通信接收装置， 其特征在于， 所述比较输出 电路包括： 第三运算放大器， 所述第三运算放大器具有同相输入端、 反相输入端 和输出端， 接收单电源 VCC供给， 同相输入端接收比较电压， 反相输 入端连接二级放大电路中第二运算放大器的输出端。
[权利要求 16] 根据权利要求 12所述的光通信接收装置， 其特征在于， 所述光通信接 收装置为光控锁， 所述光控锁还包括锁本体；
所述光电转换电路向所述锁本体发送幵锁信号； 所述锁本体包括锁舌、 锁扣和驱动器， 所述驱动器与所述锁舌连接， 用于收到幵锁信号后驱动所述锁舌退出所述锁扣。
[权利要求 17] 根据权利要求 16所述的光通信接收装置， 其特征在于， 所述光通信接 收装置还包括展示柜， 所述光控锁设置在所述展示柜上。
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US20170324539A1 (en) 2017-11-09
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