CN2620327Y - Contactless RF card carge terminal - Google Patents
Contactless RF card carge terminal Download PDFInfo
- Publication number
- CN2620327Y CN2620327Y CN 03231587 CN03231587U CN2620327Y CN 2620327 Y CN2620327 Y CN 2620327Y CN 03231587 CN03231587 CN 03231587 CN 03231587 U CN03231587 U CN 03231587U CN 2620327 Y CN2620327 Y CN 2620327Y
- Authority
- CN
- China
- Prior art keywords
- chip
- circuit
- pin
- resistance
- radio
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Circuits Of Receivers In General (AREA)
Abstract
The utility model relates to a non-contact radio-frequency accounting card terminal, comprising a crust provided with a data display window and an electronic breadboard installed inside the crust. The electronic breadboard is provided with a singlechip control circuit, a data display circuit, an electrical source circuit, a R/W card circuit, a light input circuit and an input/output interface circuit. A slot for a radio-frequency card to plug into is arranged on the outer surface of the crust. The R/W card circuit mainly consists of three pieces, a chipU5, a chipU6 and a chipU7; the chipU7 and its surrounding circuits form a typical R/W card basic circuit; the chipU5 amplifies the signals and the chipU6 limits the amplitude of the signals. The light input circuit is composed of three sets of light control switches, including a light control key Add circuit, a light control key Minus circuit and a light control key Enter circuit. The input/output interface circuit is connected with the interface of an equipment through three signal wires and a groundwire. The utility model, adopting the comprehensive technology of eight bit microprocessor, wireless radio-frequency induction, and photoinduction of infrared beam control, can meet the demands of automatic accounting on household appliance such as a rapid gas water heater, an electric water heater, a washing machine and an electric water boiler in public places. The radio-frequency card can be used without holding the card and can account according to the length of time, thus saving energy and resource.
Description
Technical field
The utility model belongs to the family expenses electric appliances equipment automatic charging device in public service place, particularly a kind of automatic charging terminal that adopts the non-contact radio-frequency card.
Background technology
Existing family expenses electric appliances equipment automatic charging device generally adopts technology such as microprocessor, non-contact radio-frequency card and control knob, the mobile primary charging of generally hand-held card once when using radio-frequency card, as when being used for shower and chargeing, can only use once by primary charging.Owing to difference service time, charging can not be accurate, causes the waste of water, electricity, coal equal energy source thus.
The equipment that many public places use, as be used for equipment such as the shower of campus and property, the gas instantaneous water heater of doing washing and boiling water, electric heater, washing machine and electric water boiler, because the no accounting management function of equipment itself causes the accounting management difficulty.
In addition, existing automatic charging device can not be carried out the all-purpose card automatic charging to for example family expenses electric appliances equipment such as gas instantaneous water heater, electric heater, washing machine, electric water boiler, and the versatility of radio-frequency card is relatively poor.
Summary of the invention
Task of the present utility model provides a kind of improved non-contact radio-frequency card charging terminal, and it has solved existing automatic charging device need hand card charging use, the relatively poor problem of radio-frequency card versatility.
The technical solution of the utility model is as follows:
A kind of non-contact radio-frequency card charging terminal, it comprises housing that digital displaying window is housed and the electronic circuit board of settling in housing, single chip machine controlling circuit, digital display circuit and power circuit are housed on the electronic circuit board, and described housing outer surface is provided with the slot of plant radio-frequency card;
Read-write card circuit, light input circuit and input/output interface circuit also are housed on the described electronic circuit board;
Described read-write card circuit is made up of chip U5, U6, three main devices of U7, and chip U7 and peripheral circuit thereof are formed typical read-write card basic circuit, and chip U5 amplifies signal, and chip U6 is to signal limiter; Chip U7 pin 15 is connected with resistance R 22, resistance R 22 other ends with connect chip U7 pin 14 after resistance R 21 is connected, form internal oscillator thus, internal oscillator 125KHz radio frequency is exported from chip U7 pin 8,9 after amplify inside, the capacitor C 16, antenna L2 and resistance R 25 series connection that are connected between chip U7 pin 8 and the pin 9 constitute 125KHz frequency resonance loop, produce radio-frequency field to external radiation around antenna L2; Single-chip microcomputer sends to need the data of radio-frequency card by 15 outputs of monolithic under-chassis, by be connected on the monolithic under-chassis 15 resistance R 28 again control linkage at the ground level of the triode T3 of resistance R 28 other ends, make triode T3 send to the data on/off of radio-frequency card as required, by resistance R 26 and the diode D6 that is connected between triode T3 current collection level and aerial coil the 125KHz radio frequency is carried out the amplitude modulation modulation, the radio-frequency field that passes through the generation around antenna L2 of 125KHz frequency resonance loop again is to external radiation; Connect monolithic under-chassis 16 and chip U7 pin 8 by resistance R 43 then, obtain the synchronizing signal of 125KHz radio frequency as modulation; Chip U7 pin 6 is connected with monolithic under-chassis 14 so that radio frequency is controlled; Go up the equivalent capacity in parallel inductance capacitance LC that the constitutes loop that all shakes of connect by antenna L2 and adjustment module Z6 and receive the signal of radio-frequency card radiation, carry out demodulation through the anodal diode D8 that is connected on the adjustment module Z6 with the capacitor C 22 that is connected the diode D8 other end, filter the 125KHz radio frequency, demodulate and characterize the signal that radio-frequency card sends data, amplify through chip U5A and chip U5B two-stage, by 7 outputs of chip U5B pin; Resistance R 38 connects chip U5B pin 7 to chip U6 pin 3, the signal that is loaded with radio-frequency card transmission data after amplifying is delivered to chip U6A carry out amplitude limit, be transferred to monolithic under-chassis 17 by 1 connection of chip U6A pin again, single-chip microcomputer is decoded, is discerned and handle the data stream that receives;
Described smooth input circuit is made of three groups of light-operated switches, wherein light-operated key Add circuit is: photosensitive triode DR1 collector is also received resistance R 15, capacitor C 31 and monolithic under-chassis 39, resistance R 15 another termination+5V power supplys, operating voltage is provided for photosensitive triode DR1, capacitor C 31 other end ground connection, the Parameters Transformation of the light that photosensitive triode DR1 will receive is the parameter of electricity, output to monolithic under-chassis 39 by photosensitive triode collector, output to the P0.1 of P0 mouth after single-chip microcomputer is handled parameter, with being connected of chip U2 2402 pin 5 data transmission is stored to chip U2 2402 by P0.1; Light-operated key Minus circuit is: photosensitive triode DR2 collector is also received resistance R 14, capacitor C 30 and monolithic under-chassis 40, resistance R 14 another termination+5V power supplys, operating voltage is provided for photosensitive triode DR2, capacitor C 30 other end ground connection, the Parameters Transformation of the light that photosensitive triode DR2 will receive is the parameter of electricity, output to monolithic under-chassis 40 by photosensitive triode collector, output to the P0.1 of P0 mouth after single-chip microcomputer is handled parameter, with being connected of chip U2 2402 pin 5 data transmission is stored to chip U2 2402 by P0.1; Light-operated key Enter circuit is: photosensitive triode DR3 collector is also received the pin 41 of resistance R 13, capacitor C 29 and single-chip microcomputer, resistance R 13 another termination+5V power supplys, operating voltage is provided for photosensitive triode DR3, capacitor C 29 other end ground connection, the Parameters Transformation of the light that photosensitive triode DR3 will receive is the parameter of electricity, output to monolithic under-chassis 41 by photosensitive triode collector, output to the P0.1 of P0 mouth after single-chip microcomputer is handled parameter, with being connected of chip U2 2402 pin 5 data transmission is stored to chip U2 2402 by P0.1;
Described input/output interface circuit is connected with equipment interface by three signal wires and a ground wire, and wherein S1 is the equipment state signal that interfacing equipment is given billing terminal ,+12V level; S2 is the equipment controling signal that billing terminal is given interfacing equipment ,+12V level; S3 is the fee charging signal that interfacing equipment is given billing terminal ,+12V level; S4 is the common ground of interfacing equipment and billing terminal; The input/output interface circuit is made circuit three partial circuits by interface signal observation circuit, output relay driving circuit and anti-relay misoperation and is formed, the interface signal observation circuit has three groups of photoelectric isolating circuits, S1 signal monitoring circuit wherein: main devices is photo-coupler O2, photo-coupler O2 pin 1 is the anodal resistance R 50 that connects of internal illumination diode, resistance R 50 other ends connect the S1 end, and photo-coupler O2 pin 2 is that internal illumination diode negative pole is connected with the common ground S4 of billing terminal with interfacing equipment; The S2 signal monitoring circuit: main devices is photo-coupler O1, photo-coupler O1 pin 1 is the anodal resistance R 48 that connects of internal illumination diode, resistance R 48 other ends connect the S2 end, and photo-coupler O1 pin 2 is that internal illumination diode negative pole is connected with the common ground S4 of billing terminal with interfacing equipment; The S3 signal monitoring circuit: main devices is photo-coupler O3, photo-coupler O3 pin 1 is the anodal resistance R 3 that connects of internal illumination diode, resistance R 3 other ends are connected to light emitting diode DT1 negative pole, light emitting diode DT1 positive pole is connected to the S3 end, and photo-coupler O3 pin 2 is that internal illumination diode negative pole is connected with the common ground S4 of billing terminal with interfacing equipment; Relay circuit: single-chip microcomputer provides the relay operation level to chip U8C pin 9, after this level oppositely amplifies by chip U8C and chip U8D two-stage, be connected to resistance R 5 by 11 outputs of chip U8D pin, resistance R 5 another termination triode T2 base stages, triode T2 is subjected to single-chip microcomputer to provide operation level controlling and driving relay to work.
Single-chip microcomputer on the described electronic circuit board connects a prompting/warning circuit, is connected resistance R 8 with the P1.4 of P1 mouth to send prompting/alerting tone pulse, amplifies the driving hummer by triode and sends the prompting/alarm sound relevant with fault category.
Single-chip microcomputer on the described electronic circuit board connects a telecommunication circuit, chip U9 pin 4 is connected to monolithic under-chassis 13, interfacing equipment is accepted the information of single chip microcomputers transmit, chip U9 pin 1 is connected to monolithic under-chassis 11, single-chip microcomputer is accepted the information of interfacing equipment emission, and chip U9 pin 2,3 also is connected to single-chip microcomputer pin 8, by single-chip microcomputer the sending and receiving state of communicating by letter is carried out timesharing control, chip U9 pin 6,7 is connected respectively to A, the B end of connector Z5, connects as communication interface.
The utility model integrated application eight microprocessor, the wireless induction of RF-wise and the technology such as infrared light control of light sensation identification, can satisfy the all-purpose card automatic charging of the family expenses electric appliances equipment in public service place such as gas instantaneous water heater, electric heater, washing machine, electric water boiler etc.Radio-frequency card can break away from when using and holds, and can accurately charge according to the length of service time, has saved the energy and resource.
The mode that this billing terminal adopts control card to combine with light-operated technology is finished the parameter setting, only when recognizing in the draw-in groove to control card by the card read/write circuit, billing terminal is just controlled display display management menu, this moment, the keeper can be shone three light-operated keys of charging terminal configuration respectively by ordinary light source instrument such as pocket torch by method of operating, the optical parameter information translation that the light input circuit is provided with the keeper becomes the electrical quantity information transmission and gives single-chip microcomputer, single-chip microcomputer transmits, is stored into reservoir with the data of light-operated key input, to realize being provided with the function of parameter.
Non-contact radio-frequency card charging terminal of the present utility model has following advantage:
1. contactless information acquisition.Advanced non-contact radio-frequency card induction technology is adopted in the user profile collection, and wherein reading/writing of information has functions such as modulation, encoding and decoding, password authentification, anticollision.
2. contactless operation interface.System parameter setting uses the non-contact radio-frequency control card to combine with light-operated technology, realizes no key input mode, avoids the mechanical damage of operating, for the user provides more reliable, safer, easy setting operation.In addition, have good user's display interface, adopt charactron and pilot lamp display window, the real-time status and the information of terminal is provided.
3. real time billing mode.Billing terminal adopts periodic metering, and pay-per-use was combined with the time, can charge once by 1 minute under general the application, can charge once by 1 second during special the application, real-time time length can be set by request for utilization, has both guaranteed to charge accurately, and it is worthwhile that people are used.
4. surface of shell inserting slot construction.Under the real time billing mode, for fear of handing loaded down with trivial details that radio-frequency card uses, solve the slip out of the hand problem of periodic metering of radio-frequency card, in the shell structure design, be provided with perpendicular type slot, for the non-contact radio-frequency card provides plug-in card or has placed the operating structure that blocks, people can be slipped out of the hand radio-frequency card when using the automatic charging device charge, easy to use.
5. security identification formula accounting management.Accounting management is undertaken by setting, and its security in conjunction with being guaranteed, avoids the non-management employee arbitrarily to operate the leak that causes accounting management by control card identification, light-operated pushbutton recognition.
6. open type data storage administration.Billing terminal provides the memory function of many group systems parameter, and has power-down protection; Open system parameter setting area is provided, and the system manager can be managed for configuration systematic parameter.
7. all-sealed structure.The billing terminal one-piece construction adopts hermetically sealed embedded, can bear hot and cold water spray and the corrosion of alkaline bath foam.
8. reliability.Billing terminal has the self check of makeing mistakes and automatically resets as watchdog function; System has good fault-tolerant, error correction to information processing; Simultaneously, all kinds of interface signals are had fault detecting function, and provide audible visual alarm.
Description of drawings
Fig. 1 is the main TV structure synoptic diagram of a kind of non-contact radio-frequency card charging terminal of the present utility model.
Fig. 2 is the radio-frequency card inserting slot construction synoptic diagram of Fig. 1 billing terminal.
Fig. 3 is the single chip machine controlling circuit figure of Fig. 1 billing terminal.
Fig. 4 is the power circuit diagram of Fig. 1 billing terminal.
Fig. 5 is the read-write card circuit diagram of Fig. 1 billing terminal.
Fig. 6 is the light input circuit figure of Fig. 1 billing terminal.
Fig. 7 is the input/output interface circuit diagram of Fig. 1 billing terminal.
Fig. 8 is the prompting/warning circuit figure of Fig. 1 billing terminal.
Fig. 9 is the telecommunication circuit figure of Fig. 1 billing terminal.
Embodiment
Referring to Fig. 1 and Fig. 2, a kind of non-contact radio-frequency card charging terminal of the present utility model is equipped with housing 1, and digital displaying window 2 and light-operated window 3 are housed on housing 1, is provided with the slot 4 of plant radio-frequency card at housing 1 outside surface.
In housing 1, settle electronic circuit board, single chip machine controlling circuit, digital display circuit, power circuit, read-write card circuit, light input circuit and input/output interface circuit are housed on the electronic circuit board.
Referring to Fig. 3 and Fig. 4, the main control chip of eight chip microprocessor chips W 78E58B as single chip machine controlling circuit joined in this billing terminal inside, and the situation and the course of work of each circuit are monitored and controlled.The control circuit of single-chip microcomputer is:
1. crystal oscillator frequency: the crystal oscillator that connects 11.0592MHz between the monolithic under-chassis 20,21.
2. power supply: the pin 3 of 7805 integrated regulators is connected to monolithic under-chassis 44 and provides stable DC5V operating voltage to single-chip microcomputer in the power supply stabilization circuit.
3. watchdog circuit: the function that house dog is provided by typical watchdog circuit chip MAX706, during the single-chip microcomputer operate as normal, pin 9 is the pulse signal of the continuous output gap of the P1.7 of P1 mouth time＜1 second, when the pin 6 of the MAX706 that is connected to monolithic under-chassis 9 is received the pulse signal of interval time＜1 second continuously, then at pin 7 output high level, make the triode T1 conducting that is connected to resistance R 12 other ends by the resistance R 12 that is connected on the pin 7, T1 current collection level is a low level, make the monolithic under-chassis 10 that is connected on the T1 current collection level be low level, single-chip microcomputer keeps operate as normal; When single-chip microcomputer is run into abnormal conditions when program is flown, pin 6 pulse-free signals of monolithic under-chassis 9 and MAX706, then in pin 7 output low levels, by the resistance R 12 that is connected on 7 pin triode T1 that is connected to resistance R 12 other ends is ended, T1 collector and monolithic under-chassis 10 are high level, single-chip microcomputer automatically resets, and program is restarted work.
Referring to Fig. 4, the read-write card circuit is made up of chip U5 (TL062), U6 (LM393), three main devices of U7 (U2270B), U7 (U2270B) and peripheral circuit thereof have been formed typical read-write card basic circuit, and U5 (TL062) amplifies signal, and U6 (LM393) carries out amplitude limit to signal.
1. the pin 15 of oscillator frequency: U2270B is connected with resistance R 22, the other end of resistance R 22 and the pin 14 that meets U2270B after resistance R 21 is connected, and the frequency of the resistance decision U2270B internal oscillator of resistance R 21+R22 is 125KHz.
2. emission: the radio frequency of internal oscillator 125KHz pin 8,9 from U2270B after amplify inside is exported, the pin 8 and the capacitor C 16 between the pin 9, antenna L2 and resistance R 25 series connection that are connected U2270B constitute 125KHz frequency resonance loop, produce radio-frequency field to external radiation around L2.
3. modulation: the data that single-chip microcomputer sends to need radio-frequency card are the P3.3 output of P3 mouth by the pin 15 of single-chip microcomputer, by the resistance R 28 on the pin 15 that is connected single-chip microcomputer again control linkage at the ground level of the triode T3 of resistance R 28 other ends, make triode T3 send to the data on/off of radio-frequency card as required, by being connected on resistance R 26 between triode T3 current collection level and aerial coil and diode D6 the radio frequency of 125KHz is carried out the amplitude modulation modulation, make the data-modulated that need send to radio-frequency card on the radio frequency of 125KHz, the radio-frequency field that passes through the generation around antenna L2 of 125KHz frequency resonance loop again is to external radiation, when radio-frequency card is positioned at this, can receive.
4. the synchronizing signal of modulation: the pin 16 that connects single-chip microcomputers by resistance R 43 is the P3.4 of P3 mouth and the pin 8 of U2270B, obtains the synchronizing signal of the radio frequency of 125KHz as modulation.
5. radio frequency control: the pin 14 that the pin 6 of U2270B is connected to single-chip microcomputer is the P3.2 of P3 mouth, changes the state of the pin 6 of U2270B as required by single-chip microcomputer, and whether the control radio frequency is exported.
6. receive: when radio-frequency card in antenna L2 received field, go up the equivalent capacity in parallel inductance capacitance LC that the constitutes signal that the loop receives that the radio-frequency card radiation is come that all shakes of connecting by antenna L2 and adjustment module Z6, carry out demodulation through the anodal diode D8 that is connected on the adjustment module Z6 with the capacitor C 22 that is connected the diode D8 other end, the other end ground connection of capacitor C 22, filter the radio frequency of 125KHz, demodulate and characterize the signal that radio-frequency card sends data, amplify through chip U5A and chip U5B two-stage, by pin 7 outputs of chip U5B.
7. amplitude limit: resistance R 38 connects the pin 3 of the pin 7 to chip U6 of chip U5B, the signal that is loaded with radio-frequency card transmission data after amplifying is delivered to chip U6A carry out amplitude limit, become the data stream that meets the single-chip microcomputer requirement, it is the P3.5 of P3 mouth that pin 1 by chip U6A connects the pin 17 that is transferred to single-chip microcomputer, and single-chip microcomputer is decoded, discerned and handle the data stream that receives.
Referring to Fig. 5, the light input circuit is made of three groups of light-operated switches:
1. light-operated key Add: the collector of the photosensitive triode DR1 of main devices is also received resistance R 15, the pin 39 of capacitor C 31 and single-chip microcomputer is the P0.4 of P0 mouth, another termination+5V power supply of resistance R 15, operating voltage is provided for photosensitive triode DR1, the other end ground connection of capacitor C 31, the Parameters Transformation of the light that photosensitive triode DR1 will receive is the parameter of electricity, the pin 39 that outputs to single-chip microcomputer by photosensitive triode collector is the P0.4 of P0 mouth, output to the P0.1 of P0 mouth after single-chip microcomputer is handled parameter, by P0.1 with being connected of pin 5 of chip U2 2402 data transmission is stored to chip U2 2402.
2. light-operated key Minus: the collector of the photosensitive triode DR2 of main devices is also received resistance R 14, the pin 40 of capacitor C 30 and single-chip microcomputer is the P0.3 of P0 mouth, another termination+5V power supply of resistance R 14, operating voltage is provided for photosensitive triode DR2, the other end ground connection of capacitor C 30, the Parameters Transformation of the light that photosensitive triode DR2 will receive is the parameter of electricity, the pin 40 that outputs to single-chip microcomputer by photosensitive triode collector is the P0.4 of P0 mouth, output to the P0.1 of P0 mouth after single-chip microcomputer is handled parameter, by P0.1 with being connected of pin 5 of chip U2 2402 data transmission is stored to chip U2 2402.
3. light-operated key Enter: the collector of the photosensitive triode DR3 of main devices is also received resistance R 13, the pin 41 of capacitor C 29 and single-chip microcomputer is the P0.2 of P0 mouth, another termination+5V power supply of resistance R 13, operating voltage is provided for photosensitive triode DR3, the other end ground connection of capacitor C 29, the Parameters Transformation of the light that photosensitive triode DR3 will receive is the parameter of electricity, the pin 41 that outputs to single-chip microcomputer by photosensitive triode collector is the P0.4 of P0 mouth, output to the P0.1 of P0 mouth after single-chip microcomputer is handled parameter, by P0.1 with being connected of pin 5 of chip U2 2402 data transmission is stored to chip U2 2402.
Referring to Fig. 6, input/output interface circuit and use equipment such as gas heater, electric water boiler, washing machine etc. are connected.This billing terminal is to be connected by three signal wires and a ground wire with equipment interface, and it is defined as follows:
S1: interfacing equipment is given the equipment state signal of billing terminal ,+12V level;
S2: billing terminal is given the equipment controling signal of interfacing equipment ,+12V level;
S3: interfacing equipment is given the fee charging signal of billing terminal ,+12V level;
S4: the common ground of interfacing equipment and billing terminal.
The input/output interface circuit of this billing terminal is made circuit three partial circuits by interface signal observation circuit, output relay driving circuit and anti-relay misoperation and is formed.
The interface signal observation circuit has three groups of photoelectric isolating circuits:
1.S1 signal monitoring circuit: main devices is photo-coupler O2, the pin 1 of photo-coupler O2 is the anodal resistance R 50 that connects of internal illumination diode, the other end of resistance R 50 connects the S1 end, and the pin 2 of photo-coupler O2 is that internal illumination diode negative pole is connected with the common ground S4 of billing terminal with interfacing equipment.When S1 no signal/when signal is arranged, photo-coupler O2 internal illumination diode no current/have electric current to pass through, light emitting diode is not luminous/and luminous, the photosensitive triode of photo-coupler O2 inside is in high-impedance state/conducting state, the collector of photosensitive triode is that the pin 4 of photo-coupler O2 is high level/low level, by single-chip microcomputer be by pin 3 the P1 mouth P1.1 with being connected of pin 4 of photo-coupler O2 monitor this high level/low level, this high level/low level promptly reflects the state of S1 signal, thereby reaches the purpose of monitoring S1 signal.
2.S2 signal monitoring circuit: main devices is photo-coupler O1, the pin 1 of photo-coupler O1 is the anodal resistance R 48 that connects of internal illumination diode, the other end of resistance R 48 connects the S2 end, and the pin 2 of photo-coupler O1 is that internal illumination diode negative pole is connected with the common ground S4 of billing terminal with interfacing equipment.When S2 no signal/when signal is arranged, photo-coupler O1 internal illumination diode no current/have electric current to pass through, light emitting diode is not luminous/and luminous, the photosensitive triode of photo-coupler O1 inside is in high-impedance state/conducting state, the collector of photosensitive triode is that the pin 4 of photo-coupler O1 is high level/low level, by single-chip microcomputer be by pin 5 the P1 mouth P1.3 with being connected of pin 4 of photo-coupler O1 monitor this high level/low level, this high level/low level promptly reflects the state of S2 signal, thereby reaches the purpose of monitoring S2 signal.
3.S3 signal monitoring circuit: main devices is photo-coupler O3, the pin 1 of photo-coupler O3 is the anodal resistance R 3 that connects of internal illumination diode, the other end of resistance R 3 is connected to the negative pole as the light emitting diode DT1 of charging pilot lamp, the positive pole of light emitting diode DT1 is connected to the S3 end, and the pin 2 of photo-coupler O3 is that internal illumination diode negative pole is connected with the common ground S4 of billing terminal with interfacing equipment.When S3 no signal/when signal is arranged, photo-coupler O3 internal illumination diode no current/have electric current to pass through, light emitting diode is not luminous/and luminous, the photosensitive triode of photo-coupler O3 inside is in high-impedance state/conducting state, the collector of photosensitive triode is that the pin 4 of photo-coupler O3 is high level/low level, by single-chip microcomputer be by pin 2 the P1 mouth P1.0 with being connected of pin 4 of photo-coupler O3 monitor this high level/low level, this high level/low level promptly reflects the state of S3 signal, thereby reaches the purpose of monitoring S3 signal; When S3 have+during the 12V signal, light emitting diode DT1 is bright, expression is chargeed.
4. relay circuit is: single-chip microcomputer provides the relay operation level to the pin 9 of chip U8C, after this level oppositely amplifies by chip U8C and chip U8D two-stage, pin 11 outputs by chip U8D are connected to resistance R 5, the base stage of resistance R 5 another termination triode T2, triode T2 is subjected to single-chip microcomputer to provide operation level controlling and driving relay to work, when the relay adhesive, 12V voltage is arranged on the coil of relay, have circuit flow mistake on the light emitting diode DT2 this moment, this light emitting diode is bright, the adhesive of expression relay, the contact of representing relay Q1 simultaneously with on the S1+the 12V level is transferred on the S2 end, equipment controling signal is delivered on the startup line of interfacing equipment, and interfacing equipment is activated.
Referring to Fig. 7, prompting/warning circuit is: when single-chip microcomputer need send prompt tone or judgement when fault is arranged, send prompting/alerting tone pulse by the resistance R 8 that the P1.4 with the P1 mouth is connected, amplify the driving hummer by triode and send the prompting/alarm sound relevant with fault category.
Referring to Fig. 8, telecommunication circuit is: adopt the RS485 communication mode, chip U9 selects typical MAX487E chip for use, the pin 13 that the pin 4 of chip U9 is connected to single-chip microcomputer is the P3.1TXD of P3 mouth, interfacing equipment is accepted the information of single chip microcomputers transmit, the pin 11 that the pin 1 of chip U9 is connected to single-chip microcomputer is the P3.0RXD of P3 mouth, single-chip microcomputer is accepted the information of interfacing equipment emission, the pin 2 of chip U9,3 and the pin 8 that is connected to single-chip microcomputer be the P1.6 of P1 mouth, by the receipts of single-chip microcomputer to communication, the state of sending out carries out timesharing control, the pin 6 of chip U9,7 are connected respectively to the A of connector Z5, the B end connects as communication interface.
Claims (3)
1. non-contact radio-frequency card charging terminal, it comprises housing that digital displaying window is housed and the electronic circuit board of settling in housing, single chip machine controlling circuit, digital display circuit and power circuit are housed on the electronic circuit board, it is characterized in that described housing outer surface is provided with the slot of plant radio-frequency card;
Read-write card circuit, light input circuit and input/output interface circuit also are housed on the described electronic circuit board;
Described read-write card circuit is made up of chip U5, U6, three main devices of U7, and chip U7 and peripheral circuit thereof are formed typical read-write card basic circuit, and chip U5 amplifies signal, and chip U6 is to signal limiter; Chip U7 pin 15 is connected with resistance R 22, resistance R 22 other ends with connect chip U7 pin 14 after resistance R 21 is connected, form internal oscillator thus, internal oscillator 125KHz radio frequency is exported from chip U7 pin 8,9 after amplify inside, the capacitor C 16, antenna L2 and resistance R 25 series connection that are connected between chip U7 pin 8 and the pin 9 constitute 125KHz frequency resonance loop, produce radio-frequency field to external radiation around antenna L2; Single-chip microcomputer sends to need the data of radio-frequency card by 15 outputs of monolithic under-chassis, by be connected on the monolithic under-chassis 15 resistance R 28 again control linkage at the ground level of the triode T3 of resistance R 28 other ends, make triode T3 send to the data on/off of radio-frequency card as required, by resistance R 26 and the diode D6 that is connected between triode T3 current collection level and aerial coil the 125KHz radio frequency is carried out the amplitude modulation modulation, the radio-frequency field that passes through the generation around antenna L2 of 125KHz frequency resonance loop again is to external radiation; Connect monolithic under-chassis 16 and chip U7 pin 8 by resistance R 43 then, obtain the synchronizing signal of 125KHz radio frequency as modulation; Chip U7 pin 6 is connected with monolithic under-chassis 14 so that radio frequency is controlled; Go up the equivalent capacity in parallel inductance capacitance LC resonant tank that constitutes of connect by antenna L2 and adjustment module Z6 and receive the signal of radio-frequency card radiation, carry out demodulation through the anodal diode D8 that is connected on the adjustment module Z6 with the capacitor C 22 that is connected the diode D8 other end, filter the 125KHz radio frequency, demodulate and characterize the signal that radio-frequency card sends data, amplify through chip U5A and chip U5B two-stage, by 7 outputs of chip U5B pin; Resistance R 38 connects chip U5B pin 7 to chip U6 pin 3, the signal that is loaded with radio-frequency card transmission data after amplifying is delivered to chip U6A carry out amplitude limit, be transferred to monolithic under-chassis 17 by 1 connection of chip U6A pin again, single-chip microcomputer is decoded, is discerned and handle the data stream that receives;
Described smooth input circuit is made of three groups of light-operated switches, wherein light-operated key Add circuit is: photosensitive triode DR1 collector is also received resistance R 15, capacitor C 31 and monolithic under-chassis 39, resistance R 15 another termination+5V power supplys, operating voltage is provided for photosensitive triode DR1, capacitor C 31 other end ground connection, the Parameters Transformation of the light that photosensitive triode DR1 will receive is the parameter of electricity, output to monolithic under-chassis 39 by photosensitive triode collector, output to the P0.1 of P0 mouth after single-chip microcomputer is handled parameter, with being connected of chip U2 2402 pin 5 data transmission is stored to chip U2 2402 by P0.1; Light-operated key Minus circuit is: photosensitive triode DR2 collector is also received resistance R 14, capacitor C 30 and monolithic under-chassis 40, resistance R 14 another termination+5V power supplys, operating voltage is provided for photosensitive triode DR2, capacitor C 30 other end ground connection, the Parameters Transformation of the light that photosensitive triode DR2 will receive is the parameter of electricity, output to monolithic under-chassis 40 by photosensitive triode collector, output to the P0.1 of P0 mouth after single-chip microcomputer is handled parameter, with being connected of chip U2 2402 pin 5 data transmission is stored to chip U2 2402 by P0.1; Light-operated key Enter circuit is: photosensitive triode DR3 collector is also received the pin 41 of resistance R 13, capacitor C 29 and single-chip microcomputer, resistance R 13 another termination+5V power supplys, operating voltage is provided for photosensitive triode DR3, capacitor C 29 other end ground connection, the Parameters Transformation of the light that photosensitive triode DR3 will receive is the parameter of electricity, output to monolithic under-chassis 41 by photosensitive triode collector, output to the P0.1 of P0 mouth after single-chip microcomputer is handled parameter, with being connected of chip U2 2402 pin 5 data transmission is stored to chip U2 2402 by P0.1;
Described input/output interface circuit is connected with equipment interface by three signal wires and a ground wire, and wherein S1 is the equipment state signal that interfacing equipment is given billing terminal ,+12V level; S2 is the equipment controling signal that billing terminal is given interfacing equipment ,+12V level; S3 is the fee charging signal that interfacing equipment is given billing terminal ,+12V level; S4 is the common ground of interfacing equipment and billing terminal; The input/output interface circuit is made circuit three partial circuits by interface signal observation circuit, output relay driving circuit and anti-relay misoperation and is formed, the interface signal observation circuit has three groups of photoelectric isolating circuits, S1 signal monitoring circuit wherein: main devices is photo-coupler O2, photo-coupler O2 pin 1 is the anodal resistance R 50 that connects of internal illumination diode, resistance R 50 other ends connect the S1 end, and photo-coupler O2 pin 2 is that internal illumination diode negative pole is connected with the common ground S4 of billing terminal with interfacing equipment; The S2 signal monitoring circuit: main devices is photo-coupler O1, photo-coupler O1 pin 1 is the anodal resistance R 48 that connects of internal illumination diode, resistance R 48 other ends connect the S2 end, and photo-coupler O1 pin 2 is that internal illumination diode negative pole is connected with the common ground S4 of billing terminal with interfacing equipment; The S3 signal monitoring circuit: main devices is photo-coupler O3, photo-coupler O3 pin 1 is the anodal resistance R 3 that connects of internal illumination diode, resistance R 3 other ends are connected to light emitting diode DT1 negative pole, light emitting diode DT1 positive pole is connected to the S3 end, and photo-coupler O3 pin 2 is that internal illumination diode negative pole is connected with the common ground S4 of billing terminal with interfacing equipment; Relay circuit: single-chip microcomputer provides the relay operation level to chip U8C pin 9, after this level oppositely amplifies by chip U8C and chip U8D two-stage, be connected to resistance R 5 by 11 outputs of chip U8D pin, resistance R 5 another termination triode T2 base stages, triode T2 is subjected to single-chip microcomputer to provide operation level controlling and driving relay to work.
2. non-contact radio-frequency card charging terminal according to claim 1, it is characterized in that, single-chip microcomputer on the described electronic circuit board connects a prompting/warning circuit, be connected resistance R 8 with the P1.4 of P1 mouth to send prompting/alerting tone pulse, amplify the driving hummer by triode and send the prompting/alarm sound relevant with fault category.
3. non-contact radio-frequency card charging terminal according to claim 1, it is characterized in that, single-chip microcomputer on the described electronic circuit board connects a telecommunication circuit, chip U9 pin 4 is connected to monolithic under-chassis 13, interfacing equipment is accepted the information of single chip microcomputers transmit, chip U9 pin 1 is connected to monolithic under-chassis 11, single-chip microcomputer is accepted the information of interfacing equipment emission, chip U9 pin 2,3 also is connected to single-chip microcomputer pin 8, by single-chip microcomputer the sending and receiving state of communicating by letter is carried out timesharing control, chip U9 pin 6,7 is connected respectively to A, the B end of connector Z5, connects as communication interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03231587 CN2620327Y (en) | 2003-05-28 | 2003-05-28 | Contactless RF card carge terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03231587 CN2620327Y (en) | 2003-05-28 | 2003-05-28 | Contactless RF card carge terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2620327Y true CN2620327Y (en) | 2004-06-09 |
Family
ID=34248246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03231587 Expired - Lifetime CN2620327Y (en) | 2003-05-28 | 2003-05-28 | Contactless RF card carge terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2620327Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100533471C (en) * | 2005-02-28 | 2009-08-26 | 株式会社东芝 | Radio communication device, radio communication method and non-contact IC card reader/writer device |
| CN111060796A (en) * | 2019-12-11 | 2020-04-24 | 上海精密计量测试研究所 | Method for detecting space displacement effect of photosensitive triode |
-
2003
- 2003-05-28 CN CN 03231587 patent/CN2620327Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100533471C (en) * | 2005-02-28 | 2009-08-26 | 株式会社东芝 | Radio communication device, radio communication method and non-contact IC card reader/writer device |
| CN111060796A (en) * | 2019-12-11 | 2020-04-24 | 上海精密计量测试研究所 | Method for detecting space displacement effect of photosensitive triode |
| CN111060796B (en) * | 2019-12-11 | 2022-06-24 | 上海精密计量测试研究所 | Method for detecting space displacement effect of photosensitive triode |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204102221U (en) | A kind of electrical lock apparatus of energy-conservation intelligent security guard | |
| CN200979743Y (en) | An intelligent self-study type multi-functional infrared remote controller | |
| CN2620327Y (en) | Contactless RF card carge terminal | |
| CN1033063C (en) | Power savwing operation method of caller and caller operated by power saving method | |
| CN101144349A (en) | Household intelligent door lock system | |
| CN108830997A (en) | A kind of smooth password unlocking system and unlocking apparatus | |
| CN210721597U (en) | Intelligent door lock with monitoring and alarming functions | |
| CN1249444C (en) | Wattmeter | |
| CN106226644A (en) | Portable earth lead uses status monitoring alarm device | |
| CN102065087A (en) | Intelligent self-reorganization communication protocol and communication mode conversion module | |
| CN104950747A (en) | Low-power-consumption wireless management and control device and low-power-consumption wireless management and control method for outdoor telemetering terminal | |
| CN212105477U (en) | Safety protection intelligence lock equipment | |
| CN209568808U (en) | A kind of shopping lock | |
| CN2831286Y (en) | Remote transmitting warning system for fortuitous cut-off | |
| CN203288012U (en) | An anti-theft warning system device based on wireless communication remote control | |
| CN101252289B (en) | Short message notifying apparatus of circuit breakers | |
| CN101604874B (en) | Outdoor switch-state reminder | |
| CN207895280U (en) | A kind of low-power consumption Internet of Things parking stall lock control circuit | |
| CN201378322Y (en) | Fingerprint acquisition device and fingerprint recognition system | |
| CN219266970U (en) | Wireless code scanning gun | |
| CN1779729A (en) | Embedded system for large kilowatt user with charge recording via short messages | |
| CN203520629U (en) | Startup and shutdown control system | |
| CN203717312U (en) | Remote monitoring system for photovoltaic water pump | |
| CN208367507U (en) | Water correction plant control device | |
| CN211881694U (en) | Remote control dog training device transmitting system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130528 Granted publication date: 20040609 |