CN110504947A - A kind of tourism route information transmission system - Google Patents
A kind of tourism route information transmission system Download PDFInfo
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- CN110504947A CN110504947A CN201910815657.6A CN201910815657A CN110504947A CN 110504947 A CN110504947 A CN 110504947A CN 201910815657 A CN201910815657 A CN 201910815657A CN 110504947 A CN110504947 A CN 110504947A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 19
- 239000003990 capacitor Substances 0.000 claims abstract description 110
- 230000008054 signal transmission Effects 0.000 claims abstract description 20
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 238000007726 management method Methods 0.000 claims description 25
- 238000012937 correction Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims 2
- 230000033228 biological regulation Effects 0.000 abstract description 2
- 230000002159 abnormal effect Effects 0.000 description 9
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- 238000012423 maintenance Methods 0.000 description 2
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/04—Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
- G06Q10/047—Optimisation of routes or paths, e.g. travelling salesman problem
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/10—Services
- G06Q50/14—Travel agencies
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/46—One-port networks
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/01—Shaping pulses
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Abstract
The invention discloses a kind of tourism route information transmission systems, including frequency collection circuit 1, frequency collection circuit 2, feedback differential circuit and filtering output circuit, the frequency collection circuit 1, frequency collection circuit 2 acquires signal transmission module output end signal and controller single-chip microcomputer port signal respectively, feedback differential circuit uses transport and placing device AR1, transport and placing device AR2 and capacitor C7, capacitor C8 forms the disturbing signal in 1 output signal of detection circuit rejection frequency Acquisition Circuit, triode Q1 is used simultaneously, triode Q3 forms the anti-stop signal intermodulation distortion of push-pull circuit, triode Q5 collector output signal is through diode D1, it is inputted in transport and placing device AR3 inverting input terminal after diode D2 clipping, finally filtering output circuit uses inductance L3 and capacitor C13, capacitor C15 forms filter circuit It is exported after filtering out signal noise, to the revise signal for being converted to controller reception subscriber information management module data signal after Signal Regulation.
Description
Technical field
The present invention relates to field of circuit technology, more particularly to a kind of tourism route information transmission system.
Background technique
Currently, locating module acquires customer position information in the tourism route information transmission system, sent out through signal transmission module
It send to subscriber information management module, subscriber information management module includes that user logs in, registers and administrator is to user account, user
Management, the maintenance of information, provide data for controller and support, and subscriber information management module data signal is in signal transmission module
It is interior in the form of carrier signal transmit, since user is more, especially the tourist season when, subscriber information management module receive
User log in, register, location information it is various, it is easy to beyond the maximum fault information that signal transmission module is born, and then cause
Meeting disorder in signals transmission, causes controller to handle subscriber information management module data distorted signals, even results in control
Device issues the signal of mistake.
Summary of the invention
For above situation, for the defect for overcoming the prior art, purpose of the present invention is to provide a kind of tourism route letters
Cease Transmission system, have be skillfully constructed, the characteristic of human oriented design, can be to signal transmission module output end signal and control
Device one-chip machine port signal frequency real-time monitoring receives subscriber information management module data to controller is converted to after Signal Regulation
The revise signal of signal.
Its technical solution solved is a kind of tourism route information transmission system, including controller, subscriber information management mould
Block, signal transmission module and locating module, signal correction module, the locating module acquire customer position information, pass through signal
Defeated module is sent to subscriber information management module, and subscriber information management module includes that user logs in, registers and administrator is to user
Account, the management of user information, maintenance, provide data for controller and support, controller receives user by signal transmission module
The data-signal of information management module, be user's intelligent planning tourism route, signal correction module include frequency collection circuit 1,
Frequency collection circuit 2, feedback differential circuit and filtering output circuit；
The frequency collection circuit 1, frequency collection circuit 2 acquire signal transmission module output end signal and controller monolithic respectively
Machine port signal, feedback differential circuit is with transport and placing device AR1, transport and placing device AR2 and capacitor C7, capacitor C8 composition detection circuit filter
It is prevented except the disturbing signal in 1 output signal of frequency collection circuit, while with triode Q1, triode Q3 composition push-pull circuit
Signal intermodulation distortion, and notch circuit adjustment signal waveform is formed with resistance R10- resistance R12 and triode Q4, and transport
Transport and placing device AR1 and notch circuit output signal potential difference are detected with triode Q5, triode Q5 collector output signal is through two poles
After pipe D1, diode D2 clipping input transport and placing device AR3 inverting input terminal in, wherein triode Q2 detection transistor Q4 emitter and
Push-pull circuit output signal potential difference outputs signal in transport and placing device AR3 non-inverting input terminal, and transport and placing device AR3 is difference channel work
With, it finally filters after output circuit filters out signal noise with inductance L3 and capacitor C13, capacitor C15 composition filter circuit and exports,
It that is to say the revise signal that subscriber information management module data signal is received for controller.
Due to the use of above technical scheme, the present invention has the following advantages that compared with prior art；
1. defeated with transport and placing device AR1, transport and placing device AR2 and capacitor C7, capacitor C8 composition detection circuit rejection frequency Acquisition Circuit 1
Disturbing signal in signal out filters out disturbing signal using the differential nature of transport and placing device AR1, transport and placing device AR2, and capacitor C4 is side
Road capacitor filters out high-frequency signal noise, and capacitor C8 is decoupling capacitor, filters out low frequency signal noise, improves the stability of signal, together
Shi Yunyong triode Q1, triode Q3 form the anti-stop signal intermodulation distortion of push-pull circuit, and with resistance R10- resistance R12 and
Triode Q4 forms notch circuit adjustment signal waveform, and resistance R10- resistance R12 and capacitor C9- capacitor C11 form frequency selection circuit
Abnormal frequency signal is filtered out, and filters out abnormal high level signal with triode Q4, realizes and adjusts waveform effect.
2. can detecte signal transmission with triode Q5 detection transport and placing device AR1 and notch circuit output signal potential difference
The potential difference of module output end signal and controller single-chip microcomputer port signal, if potential difference is excessive, then it represents that signal frequency is abnormal,
Triode Q5 collector output signal inputs in transport and placing device AR3 inverting input terminal after diode D1, diode D2 clipping, adjusts
Transport and placing device AR3 output signal, adjusting controller receives the revise signal current potential of subscriber information management module data signal, wherein three
Pole pipe Q2 detection transistor Q4 emitter and push-pull circuit output signal potential difference further detect signal transmission module output end
The potential difference of signal and controller single-chip microcomputer port signal outputs signal in transport and placing device AR3 non-inverting input terminal, improves compensation letter
Number accurate, transport and placing device AR3 is that difference channel acts on, and forms filter circuit with inductance L3 and capacitor C13, capacitor C15 and filters out letter
It is exported after number clutter, that is to say the revise signal for receiving subscriber information management module data signal for controller, realize compensation control
Device one-chip machine port signal distortion error function processed.
Detailed description of the invention
Fig. 1 is a kind of feedback differential circuit diagram of the tourism route information transmission system of the present invention.
Fig. 2 is a kind of 1 figure of frequency collection circuit of the tourism route information transmission system of the present invention.
Fig. 3 is a kind of 2 figure of frequency collection circuit of the tourism route information transmission system of the present invention.
Fig. 4 is a kind of filtering output circuit figure of the tourism route information transmission system of the present invention.
Specific embodiment
For the present invention aforementioned and other technology contents, feature and effect, in following cooperation with reference to figures 1 through Fig. 4 pairs
In the detailed description of embodiment, can clearly it present.The structure content being previously mentioned in following embodiment is attached with specification
Figure is reference.
Embodiment one, a kind of tourism route information transmission system, including it is frequency collection circuit 1, frequency collection circuit 2, anti-
Difference channel and filtering output circuit are presented, the frequency collection circuit 1, frequency collection circuit 2 acquire signal transmission module respectively
Output end signal and controller single-chip microcomputer port signal, feedback differential circuit use transport and placing device AR1, transport and placing device AR2 and capacitor
Disturbing signal in C7, capacitor C8 composition 1 output signal of detection circuit rejection frequency Acquisition Circuit, while utilization triode Q1,
Triode Q3 forms the anti-stop signal intermodulation distortion of push-pull circuit, and with resistance R10- resistance R12 and triode Q4 composition limit
Wave circuit adjustment signal waveform, and with triode Q5 detection transport and placing device AR1 and notch circuit output signal potential difference, three poles
Pipe Q5 collector output signal inputs in transport and placing device AR3 inverting input terminal after diode D1, diode D2 clipping, wherein three poles
Pipe Q2 detection transistor Q4 emitter and push-pull circuit output signal potential difference, output signal to transport and placing device AR3 non-inverting input terminal
Interior, transport and placing device AR3 is difference channel effect, finally filters output circuit with inductance L3 and capacitor C13, capacitor C15 composition filter
Wave circuit exports after filtering out signal noise, that is to say the amendment letter that subscriber information management module data signal is received for controller
Number；
The feedback differential circuit filters out frequency with transport and placing device AR1, transport and placing device AR2 and capacitor C7, capacitor C8 composition detection circuit
Disturbing signal in 1 output signal of rate Acquisition Circuit filters out disturbance letter using the differential nature of transport and placing device AR1, transport and placing device AR2
Number, capacitor C4 is shunt capacitance, filters out high-frequency signal noise, and capacitor C8 is decoupling capacitor, filters out low frequency signal noise, improves letter
Number stability, while with triode Q1, triode Q3 form the anti-stop signal intermodulation distortion of push-pull circuit, and use resistance
R10- resistance R12 and triode Q4 forms notch circuit adjustment signal waveform, resistance R10- resistance R12 and capacitor C9- capacitor C11
Composition frequency selection circuit filters out abnormal frequency signal, and filters out abnormal high level signal with triode Q4, realizes and adjusts waveform
Effect, and with triode Q5 detection transport and placing device AR1 and notch circuit output signal potential difference, it can detecte signal transmission
The potential difference of module output end signal and controller single-chip microcomputer port signal, if potential difference is excessive, then it represents that signal frequency is abnormal,
Triode Q5 collector output signal inputs in transport and placing device AR3 inverting input terminal after diode D1, diode D2 clipping, adjusts
Transport and placing device AR3 output signal, adjusting controller receives the revise signal current potential of subscriber information management module data signal, wherein three
Pole pipe Q2 detection transistor Q4 emitter and push-pull circuit output signal potential difference further detect signal transmission module output end
The potential difference of signal and controller single-chip microcomputer port signal outputs signal in transport and placing device AR3 non-inverting input terminal, improves compensation letter
Number accurate, transport and placing device AR3 is that difference channel acts on, stabilization signal；
The feedback differential circuit specific structure, one end of the homophase input termination capacitor C7 of transport and placing device AR1, transport and placing device AR1's
One end of anti-phase input terminating resistor R6, capacitor C8, one end of another terminating resistor R5 of capacitor C7, the output of transport and placing device AR1
Terminate the base stage of triode Q5 and one end of resistance R7, the non-inverting input terminal of another termination transport and placing device AR2 of resistance R7, transport and placing device
One end of the anti-phase input terminating resistor R8 of AR2, another termination of resistance R5, resistance R6, the other end of resistance R8 and capacitor C8
Ground, the output of transport and placing device AR2 terminate the base stage of triode Q1, triode Q3, and the collector of triode Q3 connects power supply+5V, three poles
The emitter of pipe Q3 connects the emitter of triode Q1 and the base stage of triode Q2, one end of the emitter connecting resistance R9 of triode Q2
With the non-inverting input terminal of transport and placing device AR3, the collector of triode Q1 and the other end ground connection of resistance R9, the reverse phase of transport and placing device AR3
Input the anode of terminating resistor R14, resistance R15, one end of capacitor C12 and diode D10, the cathode of diode D2, transport and placing device
The other end for exporting terminating resistor R14, capacitor C12 of AR3, the other end ground connection of resistance R15, the cathode of diode D1 connect two poles
The anode of pipe D2 and the emitter of triode Q5, one end of the collector connecting resistance R10 of triode Q5, capacitor C9, resistance R10's
The base stage of another termination triode Q4 and one end of resistance R11, capacitor C10, another terminating resistor R12, the capacitor C11 of capacitor C9
One end, the other end ground connection of resistance R12, capacitor C10, the other end of the collector connecting resistance R11 of triode Q4, capacitor C11,
One end of the emitter connecting resistance R13 of triode Q4 and the collector of triode Q2, the other end ground connection of resistance R13.
On the basis of above scheme, the filtering output circuit is with inductance L3 and capacitor C13, capacitor C15 composition filter
Wave circuit exports after filtering out signal noise, that is to say the amendment letter that subscriber information management module data signal is received for controller
Number, compensating controller one-chip machine port signal distortion error, the anode of a termination capacitor C13 of inductance L3 is with transport and placing device AR3's
Output end, one end of another terminating resistor R17 of inductance L3, capacitor C15, the other end ground connection of capacitor C15, capacitor C13's is negative
Pole connects one end of inductance L4 and the anode of capacitor C14, one end of the cathode connecting resistance R16 of capacitor C14, the other end of inductance L4 and
The other end of resistance R16 is grounded, another termination signal output port of resistance R17；
The frequency collection circuit 1 selects the frequency collection device J1 acquisition signal transmission module output end letter of model SJ-ADC
Number, with inductance L1 and capacitor C2, capacitor C3 composition π type filter circuit filtering, the power supply terminating resistor R1 of frequency collection device J1
One end, frequency collection device J1 ground terminal ground connection, frequency collection device J1 export terminating resistor R2 one end, resistance R2's is another
Terminate one end of inductance L1, capacitor C1, capacitor C2, another termination power+5V of resistance R1, capacitor C1, the other end of capacitor C2
Ground connection, one end of another termination capacitor C3 of inductance L1 and the other end of capacitor C7, the other end ground connection of capacitor C3；
The frequency collection circuit 2 selects the frequency collection device J2 acquisition controller one-chip machine port signal of model SJ-ADC,
It is filtered with inductance L2 and capacitor C5, capacitor C6 composition π type filter circuit, the one of the power supply terminating resistor R3 of frequency collection device J2
End, the ground terminal ground connection of frequency collection device J2, frequency collection device J2 export one end of terminating resistor R4, another termination of resistance R4
One end of inductance L2, capacitor C4, capacitor C5, the other end ground connection of another termination power+5V of resistance R3, capacitor C4, capacitor C5,
One end of another termination capacitor C6 of inductance L2 and the collector of triode Q4, the other end ground connection of capacitor C6.
When the present invention is specifically used, a kind of tourism route information transmission system, including frequency collection circuit 1, frequency collection
Circuit 2, feedback differential circuit and filtering output circuit, the frequency collection circuit 1, frequency collection circuit 2 acquire signal respectively
Transmission module output end signal and controller single-chip microcomputer port signal, feedback differential circuit use transport and placing device AR1, transport and placing device AR2
Disturbing signal in capacitor C7, capacitor C8 composition 1 output signal of detection circuit rejection frequency Acquisition Circuit, utilizes transport and placing device
The differential nature of AR1, transport and placing device AR2 filter out disturbing signal, and capacitor C4 is shunt capacitance, filter out high-frequency signal noise, capacitor C8
For decoupling capacitor, low frequency signal noise is filtered out, improves the stability of signal, while pushing away with triode Q1, triode Q3 composition
The anti-stop signal intermodulation distortion of circuit is drawn, and forms notch circuit adjustment signal with resistance R10- resistance R12 and triode Q4
Waveform, resistance R10- resistance R12 and capacitor C9- capacitor C11 composition frequency selection circuit filter out abnormal frequency signal, and use three poles
Pipe Q4 filters out abnormal high level signal, realizes the waveform effect that adjusts, and with triode Q5 detection transport and placing device AR1 and notch
Circuit output signal potential difference can detecte the current potential of signal transmission module output end signal and controller single-chip microcomputer port signal
Difference, if potential difference is excessive, then it represents that signal frequency is abnormal, and triode Q5 collector output signal is through diode D1, diode D2
It is inputted in transport and placing device AR3 inverting input terminal after clipping, adjusts transport and placing device AR3 output signal, adjusting controller receives user information
The revise signal current potential of management module data-signal, wherein triode Q2 detection transistor Q4 emitter and push-pull circuit output are believed
Number potential difference further detects the potential difference of signal transmission module output end signal and controller single-chip microcomputer port signal, output
In signal to transport and placing device AR3 non-inverting input terminal, raising thermal compensation signal is accurate, and transport and placing device AR3 is difference channel effect, stablizes letter
Number, it finally filters after output circuit filters out signal noise with inductance L3 and capacitor C13, capacitor C15 composition filter circuit and exports,
It that is to say the revise signal that subscriber information management module data signal is received for controller.
The above is that further detailed description of the invention, and it cannot be said that the present invention in conjunction with specific embodiment
Specific implementation is limited only to this；Belonging to the present invention and for those skilled in the technology concerned, it is being based on skill of the present invention
Under the premise of art scheme thinking, it is made expansion and operating method, data replacement, should all fall in the scope of the present invention it
It is interior.
Claims (4)
1. a kind of tourism route information transmission system, including controller, subscriber information management module, signal transmission module and positioning
Module, signal correction module, the locating module acquire customer position information, are sent to user information pipe through signal transmission module
Manage module, subscriber information management module includes that user logs in, registers and administrator is to the management of user account, user information, dimension
Shield provides data for controller and supports, controller receives the data-signal of subscriber information management module by signal transmission module,
For user's intelligent planning tourism route, which is characterized in that signal correction module includes frequency collection circuit 1, frequency collection circuit
2, feedback differential circuit and filtering output circuit；
The frequency collection circuit 1, frequency collection circuit 2 acquire signal transmission module output end signal and controller monolithic respectively
Machine port signal, feedback differential circuit is with transport and placing device AR1, transport and placing device AR2 and capacitor C7, capacitor C8 composition detection circuit filter
It is prevented except the disturbing signal in 1 output signal of frequency collection circuit, while with triode Q1, triode Q3 composition push-pull circuit
Signal intermodulation distortion, and notch circuit adjustment signal waveform is formed with resistance R10- resistance R12 and triode Q4, and transport
Transport and placing device AR1 and notch circuit output signal potential difference are detected with triode Q5, triode Q5 collector output signal is through two poles
After pipe D1, diode D2 clipping input transport and placing device AR3 inverting input terminal in, wherein triode Q2 detection transistor Q4 emitter and
Push-pull circuit output signal potential difference outputs signal in transport and placing device AR3 non-inverting input terminal, and transport and placing device AR3 is difference channel work
With, it finally filters after output circuit filters out signal noise with inductance L3 and capacitor C13, capacitor C15 composition filter circuit and exports,
It that is to say the revise signal that subscriber information management module data signal is received for controller.
2. a kind of tourism route information transmission system as described in claim 1, which is characterized in that the feedback differential circuit includes
One end of the homophase input termination capacitor C7 of transport and placing device AR1, transport and placing device AR1, the anti-phase input terminating resistor R6 of transport and placing device AR1,
One end of capacitor C8, one end of another terminating resistor R5 of capacitor C7, transport and placing device AR1 output termination triode Q5 base stage and
The anti-phase input of one end of resistance R7, the non-inverting input terminal of another termination transport and placing device AR2 of resistance R7, transport and placing device AR2 terminates electricity
Hinder one end of R8, the other end ground connection of resistance R5, resistance R6, the other end of resistance R8 and capacitor C8, the output end of transport and placing device AR2
The base stage of triode Q1, triode Q3 are connect, the collector of triode Q3 meets power supply+5V, and the emitter of triode Q3 connects triode
The emitter of Q1 and the base stage of triode Q2, one end of the emitter connecting resistance R9 of triode Q2 and transport and placing device AR3's is same mutually defeated
Enter end, the collector of triode Q1 and the other end ground connection of resistance R9, anti-phase input terminating resistor R14, the resistance of transport and placing device AR3
R15, the anode of one end of capacitor C12 and diode D10, diode D2 cathode, the output terminating resistor R14 of transport and placing device AR3,
The other end of capacitor C12, the other end ground connection of resistance R15, the cathode of diode D1 connect the anode and triode Q5 of diode D2
Emitter, one end of the collector connecting resistance R10 of triode Q5, capacitor C9, the base of another termination triode Q4 of resistance R10
One end of pole and resistance R11, capacitor C10, one end of another terminating resistor R12 of capacitor C9, capacitor C11, resistance R12, capacitor
The other end of C10 is grounded, and the other end of the collector connecting resistance R11 of triode Q4, capacitor C11, the emitter of triode Q4 connect
One end of resistance R13 and the collector of triode Q2, the other end ground connection of resistance R13.
3. a kind of tourism route information transmission system as claimed in claim 2, which is characterized in that the filtering output circuit includes
The anode of a termination capacitor C13 of inductance L3, inductance L3 and the output end of transport and placing device AR3, another terminating resistor of inductance L3
One end of R17, capacitor C15, the other end ground connection of capacitor C15, the cathode of capacitor C13 meet one end and the capacitor C14 of inductance L4
Anode, one end of the cathode connecting resistance R16 of capacitor C14, the other end of inductance L4 and the other end ground connection of resistance R16, resistance R17
Another termination signal output port.
4. a kind of tourism route information transmission system as described in claim 1, which is characterized in that the frequency collection circuit 1 is wrapped
Include the frequency collection device J1 of model SJ-ADC, one end of the power supply terminating resistor R1 of frequency collection device J1, frequency collection device J1
Ground terminal ground connection, frequency collection device J1 exports one end of terminating resistor R2, another termination inductance L1 of resistance R2, capacitor C1,
One end of capacitor C2, the other end ground connection of another termination power+5V of resistance R1, capacitor C1, capacitor C2, the other end of inductance L1
Connect one end of capacitor C3 and the other end of capacitor C7, the other end ground connection of capacitor C3；
The frequency collection circuit 2 includes the frequency collection device J2 of model SJ-ADC, and the power supply of frequency collection device J2 terminates electricity
One end of R3, the ground terminal ground connection of frequency collection device J2 are hindered, frequency collection device J2 exports one end of terminating resistor R4, resistance R4's
One end of another termination inductance L2, capacitor C4, capacitor C5, another termination power+5V of resistance R3, capacitor C4, capacitor C5's is another
One end ground connection, one end of another termination capacitor C6 of inductance L2 and the collector of triode Q4, the other end ground connection of capacitor C6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910815657.6A CN110504947A (en) | 2019-08-30 | 2019-08-30 | A kind of tourism route information transmission system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910815657.6A CN110504947A (en) | 2019-08-30 | 2019-08-30 | A kind of tourism route information transmission system |
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| CN110504947A true CN110504947A (en) | 2019-11-26 |
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| CN201910815657.6A Pending CN110504947A (en) | 2019-08-30 | 2019-08-30 | A kind of tourism route information transmission system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111245456A (en) * | 2020-03-01 | 2020-06-05 | 徐晨旭 | Service management system based on big data |
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2019
- 2019-08-30 CN CN201910815657.6A patent/CN110504947A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111245456A (en) * | 2020-03-01 | 2020-06-05 | 徐晨旭 | Service management system based on big data |
| CN111245456B (en) * | 2020-03-01 | 2020-10-02 | 北京瞭望神州科技有限公司 | Service management system based on big data |
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