CN107134151A - Using NFC technique and the method for geomagnetic type vehicle checker data interaction - Google Patents
Using NFC technique and the method for geomagnetic type vehicle checker data interaction Download PDFInfo
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- CN107134151A CN107134151A CN201610110843.6A CN201610110843A CN107134151A CN 107134151 A CN107134151 A CN 107134151A CN 201610110843 A CN201610110843 A CN 201610110843A CN 107134151 A CN107134151 A CN 107134151A
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000003993 interaction Effects 0.000 title claims description 10
- 230000000977 initiatory effect Effects 0.000 claims abstract description 15
- 230000005389 magnetism Effects 0.000 claims abstract 6
- 238000004519 manufacturing process Methods 0.000 claims abstract 3
- 238000007689 inspection Methods 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 11
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 claims description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims 1
- 230000001808 coupling effect Effects 0.000 claims 1
- 229910052744 lithium Inorganic materials 0.000 claims 1
- 230000005611 electricity Effects 0.000 abstract 2
- 230000003071 parasitic effect Effects 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 7
- 239000003999 initiator Substances 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 230000006854 communication Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
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Abstract
Patent of the present invention belongs to intelligent transportation, traffic information collection field, and in particular to set earth magnetism vehicle checker inner parameter and the method for controlling its operation.Including NFC initiating equipments, NFC answering equipments, earth magnetism vehicle checker.The NFC initiating equipments are with the mobile phone of NFC function or other hand-held NFC devices.The NFC answering equipments are the NFC module for being built in geomagnetic type vehicle checker, including NFC coils, the parasitic element of decoding chip composition.NFC initiating equipment typing parameter informations simultaneously manufacture radiofrequency field parameter information are blazed abroad.NFC answering equipments enter after radiofrequency field, and coil produces induced-current and simultaneously receives the data loaded in radiofrequency field, and decoding chip is data convert into storing after parameter information.After radiofrequency field leaves, earth magnetism vehicle checker microprocessor calls the parameter in decoding chip.Whole process consumes earth magnetism vehicle checker electricity when only calling decoding chip parameter, and other actions, which are relied on, senses electricity in radiofrequency field, the extremely power saving for earth magnetism vehicle checker.
Description
Technical Field
The invention relates to a road traffic vehicle information acquisition and parking management system, in particular to a method for data interaction between an NFC technology and an internal geomagnetic vehicle inspection device.
Background
With the increasing amount of vehicles kept, the demand for intelligent management of vehicles in cities is increasing. The defects of annular coil detection, screen detection, microwave detection and the like in the mainstream vehicle detection technology in the market are gradually obvious, and a new detection mode is developed according to the market requirement. The wireless geomagnetic vehicle detector is a vehicle detection technology newly developed in recent years, and is more and more applied due to simple installation and strong anti-interference capability. The geomagnetic vehicle detector judges whether a vehicle exists nearby by depending on a geomagnetic variable, and the geomagnetic level in the natural environment has great influence on the threshold value of the detector for judging the vehicle. The geomagnetic vehicle inspection device is hermetically installed due to engineering requirements such as waterproof, dustproof, shockproof and pressure resistance, and is difficult to debug after installation. Most of the existing geomagnetic vehicle inspection devices are set with parameter values when leaving factories, equipment cannot be debugged according to field environments, the vehicle inspection devices do not work at the optimal parameter setting, and the detection effect is influenced or even the vehicle inspection devices cannot work. The existing wireless transparent transmission module debugging equipment of the vehicle inspection device is utilized, the receiving end of the wireless transmission module of the vehicle inspection device needs to be placed in an open state for a long time, the energy consumption is increased, and the service life of the vehicle inspection device is shortened.
Disclosure of Invention
The invention provides a method for interacting and debugging parameters with data in a geomagnetic vehicle inspection device by utilizing an NFC (near field data transmission) mode. The system realizes the adjustment and control of parameters such as startup, shutdown, sensitivity, address position and the like of the geomagnetic vehicle detector on site, and simultaneously establishes the connection between the vehicle detector and a user very conveniently and conveniently, so that the user can conveniently input personal data, payment information and the like. The following technical scheme is adopted.
The data interaction with the geomagnetic vehicle detector based on the NFC mode comprises NFC initiating equipment, NFC response equipment and the geomagnetic vehicle detector; the NFC initiating device is used for initiating a radio frequency field (RF-field), providing field energy for the whole NFC transmission, and receiving feedback information to complete data interaction; the NFC response equipment is arranged in the geomagnetic vehicle detector and used for receiving, analyzing and storing the load information of the radio frequency field, sending feedback information to the NFC initiating equipment and finishing data interaction; the geomagnetic vehicle detector is used for collecting and analyzing information, and controlling the work of each module and processing data.
The NFC initiator is usually a mobile phone with an NFC card reader function, or other handheld card readers conforming to the NFC transmission standard.
The NFC response device is provided with a coupling unit and an NFC decoding module.
Normally, the NFC response terminal in the vehicle inspection device is in a silent state, and the NFC module in this state consumes no power. The NFC initiator device provides a radio frequency field (RF-field) throughout the communication process by which it sends data to another device at 13.56 Mbps. Another device, called an NFC responder, relies on the current generated by a coil in the radio frequency field to transmit data back to the initiating device at the same speed using load modulation (load modulation) techniques. The information received by the NFC responder is the data information required by the vehicle detector, and the information can be the stop and restart instruction, the sensitivity, the address code and even the charging information of the vehicle detector. And the information is decoded and stored in the NFC decoding chip. When the answering device leaves the radio frequency field of the initiating device, the vehicle detector microprocessor starts to supply power to the NFC decoding chip and calls the data information stored in the NFC decoding chip. After the information is read, the NFC decoding chip is powered off, and is continuously placed in a silent state without power consumption.
Drawings
FIG. 1 is a sectional view of a geomagnetic vehicle inspection device.
Fig. 2 NFC module work flow diagram.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It is to be understood that this example is only for the better understanding of the invention and is not intended to limit the scope of the invention.
The invention relates to a method for mutually transmitting information with a geomagnetic vehicle detector in an NFC (near field communication) mode. The method comprises the following steps: the NFC initiating device sends out a radio frequency field to provide field energy for NFC transmission and sends out data; the NFC response equipment generates induced current in a radio frequency field and receives data loaded in the radio frequency field; and the geomagnetic vehicle detector is used for calling data stored by the NFC response equipment by the microprocessor.
Fig. 1 shows a structure diagram of a geomagnetic vehicle detector for data interaction in an NFC manner, taking an NFC initiator as a mobile phone as an example.
1) The method comprises the steps of installing special APP software on a mobile phone with an NFC card reader function, and inputting data needing to be recorded into a geomagnetic vehicle detector on a software interface.
2) And starting the NFC function of the mobile phone to enable the mobile phone to be close to the position right above the detector, so as to ensure that the geomagnetic vehicle detector is positioned in a radio frequency field emitted by the mobile phone. Starting to input data information after the software prompts detects the NFC answering equipment; data are transmitted through a radio frequency field, and the coupling module of the NFC answering device induces current to enter the geomagnetic vehicle detector decoding module for storage. The data information can be a stop or restart instruction of the vehicle detector, and can also be a sensitivity parameter; user personal information or parking charge information can be entered if using dedicated NFC payment software.
3) By using the load modulation technology, the information recorded in the geomagnetic vehicle detector can be fed back to the mobile phone through the radio frequency field, and the information can be an address code of the geomagnetic vehicle detector, fault information of the geomagnetic vehicle detector and the like.
4) After the data interaction is completed, the mobile phone is far away from the geomagnetic vehicle detector, and the radio frequency field will disappear. And the microprocessor of the geomagnetic vehicle detector detects that the radio frequency field disappears, starts to supply power to the decoding module and calls the data information recorded in the decoding module.
Claims (6)
1. A method for data interaction with a geomagnetic vehicle detector by adopting an NFC technology is characterized in that: including NFC initiating equipment, NFC response device and earth magnetism car detector: wherein,
the NFC initiating device is used for inputting parameter information, manufacturing a radio frequency field, providing energy through the radio frequency field and sending wireless data;
the NFC response equipment is used for receiving the radio frequency field and converting the radio frequency field into electric energy, and analyzing data transmitted by the radio frequency field to obtain required information and storing the information;
the geomagnetic vehicle inspection device is used for collecting and calculating vehicle information and controlling the operation of the vehicle inspection device.
2. The NFC initiating device based on the NFC control geomagnetic vehicle detector is characterized by comprising a coupling module, a coding module, an interface unit and corresponding application software which are sequentially connected;
the coupling module is usually a coil, a microstrip antenna and the like, and provides induced current for passive response equipment by sending out a radio frequency field and utilizing a coupling effect and transmits data;
the initiating device coding module compiles the parameter information into wireless data and provides a current for the coupling module to manufacture a radio frequency field;
the interface unit is connected with the coding module and the microprocessor and is used for data transmission between the coding module and the microprocessor;
the application software is NFC special software matched with the answering device and used for inputting updated data and displaying data read from the answering device.
3. The NFC initiation device according to claim 1 is a mobile phone with an NFC card reader function or other handheld card reader conforming to the NFC transmission standard.
4. The NFC response device based on the NFC control geomagnetic vehicle detector is characterized by comprising a response device coupling module, a decoding module and an interface unit which are sequentially connected;
the response equipment coupling module is a coil matched with the decoding chip and fixed on the inner side of the shell of the car detector, and a coil lead is connected with the NFC response decoding module; the coupling module generates induced current when being positioned in the radio frequency field and transmits wireless data loaded in the radio frequency field to the decoding module;
the response equipment decoding module is an NFC special chip and is used for analyzing the data received by the coupling module, namely the data information of the geomagnetic vehicle detector and storing the data in the decoding module;
the response equipment interface unit is used for data transmission between the decoding module and the geomagnetic vehicle detector microprocessor; after the radio frequency field leaves the answering device, the geomagnetic vehicle detector microprocessor starts to supply power to the decoding module through the interface unit and calls data stored in the module; after the data calling is finished, the geomagnetic vehicle detector processor disconnects the power supply of the answering equipment decoding module, and the NFC answering equipment enters the passive state again without power consumption.
5. The NFC-based geomagnetic vehicle detector for controlling the geomagnetic vehicle detector according to claim 1 comprises other modules in a vehicle detector structure except for NFC answering equipment, and the other modules comprise an information acquisition module, a control module, a power supply module and a wireless transmission module;
the information acquisition module is a triaxial magneto-resistive sensor and is used for acquiring and inputting vehicle information; the control module is a micro-processing chip and is used for controlling the operation and data operation of each module; the power supply module is a high-energy lithium battery; the wireless transmission module is used for transmitting data to the terminal.
6. The NFC-technology-based operation method for controlling the geomagnetic vehicle detector is characterized by comprising the following steps of;
step 1, a handheld NFC device is used to be close to the upper part of a geomagnetic vehicle detector, and the distance is generally within 8 centimeters;
step 2, opening special software on the handheld NFC equipment, inputting data information needing to be interacted with the geomagnetic vehicle detector, and transmitting the data to the geomagnetic vehicle detector through a radio frequency field;
step 3, after the data information is input, the data information in the geomagnetic vehicle inspection device can be selectively read, and data interaction is realized;
step 4, the NFC equipment is held by a hand to be far away from the geomagnetic vehicle detector, and the radio frequency field connection is disconnected; and the geomagnetic vehicle detector microprocessor calls the recorded data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610110843.6A CN107134151A (en) | 2016-02-29 | 2016-02-29 | Using NFC technique and the method for geomagnetic type vehicle checker data interaction |
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| CN201610110843.6A CN107134151A (en) | 2016-02-29 | 2016-02-29 | Using NFC technique and the method for geomagnetic type vehicle checker data interaction |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109979205A (en) * | 2019-04-22 | 2019-07-05 | 西安中星测控有限公司 | A kind of intelligent wireless parking stall terminal and its application method based on NFC communication |
| CN112130499A (en) * | 2020-09-24 | 2020-12-25 | 奇点新源国际技术开发(北京)有限公司 | Sensor configuration device, sensor and sensor configuration method |
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2016
- 2016-02-29 CN CN201610110843.6A patent/CN107134151A/en active Pending
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Application publication date: 20170905 |