CN102456241A - Wireless radio frequency technology based cell phone access control realization method - Google Patents
Wireless radio frequency technology based cell phone access control realization method Download PDFInfo
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- CN102456241A CN102456241A CN2010105148384A CN201010514838A CN102456241A CN 102456241 A CN102456241 A CN 102456241A CN 2010105148384 A CN2010105148384 A CN 2010105148384A CN 201010514838 A CN201010514838 A CN 201010514838A CN 102456241 A CN102456241 A CN 102456241A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a wireless radio frequency technology based cell phone access control realization method. A cell phone microprocessor is connected to a radio frequency chip nFR2401A through I2C bus, and is communicated with other wireless equipment through antenna, the cell phone microprocessor enables data packing for serialization , and is put in nFR2401A through the I2C bus, a CRC verification on data is carried out by the radio frequency chip and is putted in cache, after a radio frequency channel is prepared, the data is sent by one time with the high speed of 1Mbit/s. According to the invention, the radio frequency chip is used for completing the wireless communication, self-defined frame format and gate inhibition are used for completing instruction interaction and function realization, thereby strict gate inhibition management can be realized. For long communication range and access control with frequent system upgrade, reusability of cellphone can be ensured by a software structure capable of self upgrading. The characteristics of access control support the requirement of energy saving, emission reduction and consumption reduction, each technology and safety requirement for access control users can be satisfied. The wireless radio frequency technology based cell phone access control realization method can be used for safety protection for research institute, personal household antitheft system and the like.
Description
Technical field
The present invention relates to electronic device field, relate in particular to a kind of implementation method of the mobile phone gate control system based on wireless radio-frequency
Background technology
The mobile phone gate control system belongs to the function expansion of mobile phone.Present mobile phone gate control system mainly is divided into 3 directions:
1, Adhesive clip technical scheme.The realization of this scheme and concrete mobile phone are irrelevant, just with the RF identification design an adhesive card be attached on the mobile phone.Adopt the method for similar non-contact card during use, frequency of utilization 13.56MHz.
2, double-interface card scheme.This scheme combines RF identification with SIM, but need throw away RFID antenna.Adopt the method for similar non-contact card during use, frequency of utilization 13.56MHz.
3, block scheme entirely.This scheme combines RF identification fully with SIM, need not any expansion, adopts the method for similar non-contact card during use, frequency of utilization 2.4GHz or 433MHz.
Basically all there are some common defectives in said system.At first, these systems use the noncontact RF identification to realize basically, comprise mobile phone holder's information in the RF identification, only need a brush gently, just can accomplish the verification of communicating by letter with gate control system, seem very convenient.But steal usefulness as if hand-set from stolen or by malice, just very likely the gate inhibition being taken place performs practically no function the straightway phenomenon of offender.Secondly, if bigger technological transformation or technology upgrading take place gate control system, all RF identification matching content of system of more than describing will manually be changed all, and are very time-consuming.That have even can't change, can only change, waste time and energy, be unfavorable for that especially environment protecting and power-saving reduces discharging.At last, the communication distance of above system is nearer, and is generally all between several centimetres to tens centimetres, for the remote gate inhibition's communication that needs sometimes, all powerless.
Summary of the invention
The objective of the invention is to overcome the various deficiencies of above system, provide a kind of can be safely, effectively, software control is flexible, communication distance is far away mobile phone gate control system.
This system has adopted cryptoguard when the gate inhibition is current, therefore can be owing to hand-set from stolen causes the gate inhibition invalid; Behind system upgrade,, therefore can not use inconvenience owing to system upgrade causes the client because software is supported auto-update; When needs Remote gate inhibition because communication distance is long, so can opening door of remote-control, save time.
The present invention realizes through following technical scheme:
A kind of mobile phone gate control system implementation method based on wireless radio-frequency, described cell-phone microprocessor connects radio frequency chip nRF2401A through the I2C bus, communicates through antenna and other wireless devices.Cell-phone microprocessor with the packing data serialization after, input among the nRF2401A through the I2C bus, radio frequency chip carries out data CRC check and is pressed into buffer memory, treat that the radio-frequency channel is ready to after, once send with the two-forty of 1Mbit/s.
The main effect of described hardware drive program is the requirement according to upper procedure, is written into corresponding frame structure information and generates corresponding data structure, through the I2C EBI, sends the data of organizing to radio frequency chip subsequently, accomplishes the transmission work of data.
The implementation method of described this system is following:
1, the user opens mobile phone gate inhibition software after getting into communication range, selects corresponding frame setting, and the input password after click is sent, if password is errorless, realizes that the gate inhibition is current;
2, the user can require to be provided with different communication formats according to different entrance according to data communication format such as software requirement incoming frame head, postamble, sending orders, to realize the purpose of " machine is gone everywhere without any hindrance here at hand ";
3, the setting of communication format mainly is that, packet first by frame and postamble constitute, and preceding two bytes of packet of communication are the frame first packet each time, and first latter two byte of frame is the data length bag, and latter two byte is the postamble bag, and all the other are packet.Because nRF2401A carries the CRC check function, so no parity check bag in the frame structure.Frame head, postamble and above instruction all can be defined by user or system voluntarily.
Hardware uses the nRF2401A radio frequency chips of a large amount of employings on the market to communicate.This chip uses the I2C bus to communicate by letter with master controller, and supports the characteristics such as high transmission rate of automatic CRC check, packet loss repeating transmission automatically, automatic frequency adjustment, 1Mbit/s, strong anti-interference performance.
On the software view, have following basic function:
1. can set up the frame structure of radio communication on their own by the user.The sequential that comprises frame head, postamble, User Defined packet and transmission.Its main implementation is specified the numerical value of each packet and is passed to driver by the user for a series of user's input frame of definition, and driver communicates as communication standard and gate control system with this;
2. cryptoguard.The personal identification number of necessary transmitting system regulation when the gate control system transmit frame, this password together sends as data and other data;
3. automatic software upgrading.Can normally and under the situation of system communication, system can send self-defining frame structure and sequential, mobile phone end receives to be handled the back and carries out subsequent use as an optional communication plan.
4. the variation of communication protocol.Can the communication protocol of different systems be preserved in the mobile phone terminal, control switching, can pass through by a terminal, realize the purpose of energy-saving and emission-reduction so that reach the different entrance system by the user.
The present invention has following beneficial effect:
1, because new gate inhibition's scheme has been used self-defining radio communication agreement, therefore more flexible, strong security has improved user's entrance guard management greatly;
2, for the different entrance system, only just can realize all passing through with a mobile phone, make the carrier need not to carry the current equipment of multi-section different entrance, can reach the purpose of energy-saving and emission-reduction.
Description of drawings
Fig. 1 is the hardware configuration synoptic diagram of mobile phone gate control system of the present invention;
Fig. 2, Fig. 3 are the driver process flow diagrams of mobile phone gate control system of the present invention;
Fig. 4, Fig. 5, Fig. 6 are the software flow patterns that each function of system realizes;
Fig. 7 is a communication format synoptic diagram of the present invention.
Embodiment:
Below in conjunction with accompanying drawing the present invention is further specified
In Fig. 1, cell-phone microprocessor 1 connects radio frequency chip 2nRF2401A through the I2C bus, and it communicates through antenna 3 and other wireless devices.Cell-phone microprocessor 1 with the packing data serialization after, input among the nRF2401A through the I2C bus, radio frequency chip carries out data CRC check and is pressed into buffer memory, treat that the radio-frequency channel is ready to after, once send with the two-forty of 1Mbit/s, to improve interference free performance.
Fig. 2 is the process flow diagram of hardware drive program.
The main effect of hardware drive program is the requirement according to upper procedure, is written into corresponding frame structure information and generates corresponding data structure, through the I2C EBI, sends the data of organizing to radio frequency chip subsequently, accomplishes the transmission work of data.
The groundwork flow process of driver is as shown in Figure 3 when Data Receiving.Mainly be to interrupt carrying out the triggering of program by I2C, driver carries out the parsing of frame structure after receiving all data subsequently, extracts effective information and passes to upper level applications.
Fig. 4 and Fig. 5 have described the process flow diagram of upper level applications function and have realized.
The major function of upper layer software (applications) has:
1. the current function of gate inhibition.As shown in Figure 4, the user opens mobile phone gate inhibition software after getting into communication range, selects corresponding frame setting, and the input password after click is sent, if password is errorless, realizes that the gate inhibition is current.
2. the User Defined frame is provided with.As shown in Figure 5, the user can so can require to be provided with different communication formats according to different entrance according to data communication format such as software requirement incoming frame head, postamble, sending orders, to realize the purpose of " machine is gone everywhere without any hindrance here at hand ".
3. software automatic updating.As shown in Figure 6, if system update or replacing communication format can be sent the auto-update instruction under present communication format, communication format and replacement that mobile phone meeting automatic reception system sends have form now, realize auto-update.
The instruction of using in the communication process has:
The gate inhibition is to the instruction of mobile phone side:
Update instruction (Update): the illustrative system data sent is new communication format, and mobile phone need be handled replacing;
Password false command (PwdErr): last password bad that sends or the failure of modification password, mobile phone end need resend;
Verification right instructions (ChkOK): password is errorless, P Passable or the success of modification password.
Mobile phone to the instruction of gate inhibition's side:
Revise cipher instruction (PwdChg): revise current password.Password after current password and two the identical modifications need be provided; Cryptographic check instruction (PwdChk): verification current password.The transmission active user inputs password and carries out verification.
The setting of communication format mainly is to be made up of frame head, packet and postamble, and is as shown in Figure 7.Preceding two bytes of packet of communication are the frame first packet each time, and first latter two byte of frame is the data length bag, and latter two byte is the postamble bag, and all the other are packet.Because nRF2401A carries the CRC check function, so no parity check bag in the frame structure.Frame head, postamble and above instruction all can be defined by user or system voluntarily.
Automatically more during novel communication format, the definition of data bag of novel communication format is followed following order and is sent successively: frame head, postamble, Update, PwdErr, ChkOK, PwdChg, PwdChk in system.Novel communication format more voluntarily after mobile phone receives.
Claims (4)
1. mobile phone gate control system implementation method based on wireless radio-frequency is characterized in that: described cell-phone microprocessor connects radio frequency chip nRF2401A through the I2C bus, communicates through antenna and other wireless devices.
2. a kind of mobile phone gate control system implementation method based on wireless radio-frequency according to claim 1 is characterized in that: described cell-phone microprocessor chip uses the I2C bus to be connected with radio frequency chip nRF2401A and accomplishes radio communication.
3. a kind of mobile phone gate control system implementation method according to claim 1 based on wireless radio-frequency; It is characterized in that: the main effect of described hardware drive program is the requirement according to upper procedure; Be written into corresponding frame structure information and generate corresponding data structure; Through the I2C EBI, send the data of organizing to radio frequency chip subsequently.
4. according to right 1 described a kind of mobile phone gate control system implementation method based on wireless radio-frequency, it is characterized in that: described gate control system and mobile phone are through command communication, and gate control system can be upgraded mobile communication instruction and frame format voluntarily.
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| CN2010105148384A CN102456241A (en) | 2010-10-21 | 2010-10-21 | Wireless radio frequency technology based cell phone access control realization method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107067514A (en) * | 2017-04-12 | 2017-08-18 | 深圳市瑞荣创电子科技有限公司 | Gate inhibition's remote Mobile Control means of communication |
| CN110071914A (en) * | 2019-04-03 | 2019-07-30 | 广州视源电子科技股份有限公司 | The means of communication, the construction method of frame structure, device, MCU, system and medium |
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Application publication date: 20120516 |