CN102412870A

CN102412870A - Fast access short-range wireless communication module for controlling communication range

Info

Publication number: CN102412870A
Application number: CN2010102880173A
Authority: CN
Inventors: 余运波; 朱杉
Original assignee: Nationz Technologies Inc
Current assignee: Nationz Technologies Inc
Priority date: 2010-09-21
Filing date: 2010-09-21
Publication date: 2012-04-11
Also published as: WO2012037752A1

Abstract

The invention relates to the field of communication, in particular to a master communication module and a slave communication module which have controllable communication range and can be quickly accessed to high-efficiency short-distance wireless communication. The main communication module is used for sending a first distance reference signal containing information of the main communication module and communication distance information; the slave communication module can judge whether the communication distance meets a preset range according to the received first distance reference signal, and if the communication distance meets the preset range, wireless communication connection is quickly established according to a preset protocol and data exchange is carried out. The first distance reference signal can adopt a low-frequency magnetic signal form or an ultrasonic signal form to meet the requirement of close-range access. The master communication module and the slave communication module provide basic hardware carriers for realizing instant, fast and efficient wireless data exchange within a specific distance range.

Description

Be used to control the quick access low coverage wireless communication module of communication range

Technical field

The present invention relates to the communications field, relate in particular to the main communication module of the controlled efficient low coverage radio communication of quick access of a kind of communication range and from communication module.

Background technology

Used the high-speed radio transmission to carry out exchanges data on present computer or the mobile device in a large number; Commonplace use be that Wi-Fi (IEEE802.11a/b/g/n standard), bluetooth, Zigbee (IEEE 802.15.4 standard), UWB (Ultra Wideband, super wideband wireless transmission) wait technological.These high-speed radiocommunications make and can carry out information exchange and function sharing etc. between intercomputer or mobile device that the user can realize files in stream media transmission, address list exchange, the operation of share and access internet in these mobile devices.These technology are directed against all is long-time, a plurality of users, use than the exchanges data of far range (more than 10 meters); Using should technology the time, the user need carry out comparatively complicated configuration, needs complex setting, reuses needs cost a period of time and wait for and seek main frame and connection etc. like first use.In addition, these technology are owing to will consider that a plurality of users work simultaneously and factor such as radiofrequency signal poor quality, and it has generally all defined complicated LMP Link Manager Protocol in communication process, and these protocol overheads cause the wireless channel utilance not high.

Current, along with the variation of mobile electronic device and be widely used, the application demand of instant shared data is more and more stronger between two equipment.Close (in 1 meter) between two equipment of common shared data; But require exchanges data very quick, timely and efficient; Get into the main equipment setting range from being dynamically connected and transmitting data like slave unit, shift out setting range and then cut off connection etc. automatically.And the existing communication technology all can not satisfy in this short range user immediately, the requirement of swap data fast and efficiently.

In the prior art, can in limited range, carry out wireless communication system and mainly contain the RFID radio frequency identification systems.The RFID RF tag has 13.56MHz, 800-900MHz, 2.4GHz etc. respectively by frequency categorization, and wherein 13.56M tag read distance is less than 10 centimetres, and other two kinds then can arrive several meters.And all there are two problems in these rfid systems: traffic rate is crossed low and communication distance can't be controlled flexibly; And label-side is all taked passive mode, and the transmitting power of reading card device requires very high, is not easy to be integrated in the light mobile electronic device.

Summary of the invention

Technical problem to be solved by this invention provides and a kind ofly is used for the main communication module of the controlled efficient low coverage radio communication of quick access of communication context and from communication module; Realize that various equipment rooms with high-speed radiocommunication function need not rely on the data exchange agreement expense of complicated access procedure, complex setting and poor efficiency, quick access and efficient communication that can be in specific distance range.

The technical scheme that the present invention solves the problems of the technologies described above is following:

A kind of main communication module; Comprise reference cell, first wireless communication unit and control said reference cell and first control unit of the first wireless communication unit work; Said reference cell is used for wireless transmission first apart from reference signal, and said first wireless communication unit is used for setting up radio communication fast according to preset protocol and connects the line data exchange of going forward side by side.

The beneficial effect of above-mentioned main communication module is: through sending first apart from reference signal; Make corresponding receiver module or device first to judge whether in preset communication distance scope according to this apart from reference signal; If in preset communication distance scope, can realize and this main communication module between the predeterminable range scope interior immediately, radio communication and exchanges data fast and efficiently.This main communication module is the hardware carrier of controlled the providing the foundation property of the efficient low coverage radio communication of quick access of communication context.

Further, said first wireless communication unit is set up speed that radio communication connects the line data exchange of going forward side by side and is higher than said reference cell and sends first speed apart from reference signal.

Adopt the beneficial effect of above-mentioned further scheme to be, can realize utilizing the low speed transmissions passage to adopt the form of distance judgement to set up the high speed data transfer passage.

Further, said first contains this main communication module information and communication distance information apart from reference signal.

Adopt the beneficial effect of above-mentioned further scheme to be, first contains this main communication module information and communication distance information apart from reference signal is convenient to receive first and this main communication module is confirmed and distance is judged apart from the device of reference signal.

Further, said reference cell comprises first microcontroller in sequential series, first coding circuit, first drive circuit and the first emission of magnetic field coil; Said first microcontroller is used to control first coding circuit and first drive circuit; Said first coding circuit is used for the wireless data frame of main communication module information is pursued bits of encoded, and sends first drive circuit to; Said first drive circuit is used for the first emission of magnetic field coil is driven; The said first emission of magnetic field coil is used to produce and contains first of main communication module information and send apart from reference signal and with the magnetic signal form.

Adopt the beneficial effect of above-mentioned further scheme to be, a kind of first mode apart from the reference signal transmission of utilizing the magnetic signal form as carrier is provided.

Further, said reference cell also comprises first modulation circuit that is arranged between first coding circuit and first drive circuit; Said first modulation circuit is used for the main communication module information behind first coding circuit coding is modulated, and sends first drive circuit to.

Adopt the beneficial effect of above-mentioned further scheme to be, can modulate main communication module information as required.

Further, said reference cell also comprises second magnetic conduction circuitry, second amplifying circuit and judgement of second thresholding and demodulator circuit, and said second magnetic conduction circuitry, second amplifying circuit, the second thresholding judgement and demodulator circuit and first microcontroller are in sequential series; Said second magnetic conduction circuitry is used to respond to the second distance reference signal that contains signal emitting-source information that receives the magnetic signal form and convert thereof into electrical signal form, and sends second amplifying circuit to; Said second amplifying circuit is used for the second distance reference signal is amplified and sent that second thresholding is judged and demodulator circuit to; Said second thresholding is judged and demodulator circuit is used to judge whether the second distance reference signal reaches predetermined threshold value, if reached predetermined threshold value then send the signal emitting-source information in the second distance reference signal to first microcontroller; Said first microcontroller is used to control second magnetic conduction circuitry, second amplifying circuit and second thresholding to be judged and demodulator circuit, and sends the signal emitting-source information that receives to said first control unit.

Adopt the beneficial effect of above-mentioned further scheme to be, the passage of verifying communication distance between main communication module and other signal emitting-source is provided, make main communication module possess the function of communication distance between detection and other signal emitting-source.

Further, said first is the low frequency magnetic signal apart from reference signal.

Adopt the beneficial effect of above-mentioned further method to be, adopt magnetic signal, can use magnetic flux density Physical Quantity Calculation communication distance.Magnetic flux density is R with communication distance R ^-3Decay, and the decay when adopting the low frequency magnetic signal to penetrate different objects is little, antijamming capability is strong, the robustness of magnetic flux letter is good, make winner's communication module and between the communication module first apart from reference signal send safe.

Further, the frequency of said low frequency magnetic signal is 500Hz, 1KHz, 1.5KHz, 2KHz, 2.5KHz, 3KHz, 4KHz, 5KHz, 10KHz, 20KHz, 30KHz or 10MHz.

Further, said second distance reference signal is the low frequency magnetic signal.

Further, said reference cell comprises at least three ultrasound transmitter device and at least one modulation and start-up control device, and said modulation and start-up control device are connected with ultrasound transmitter device respectively; Said modulation and start-up control device are used for main communication module information is modulated into first apart from reference signal, and start said at least three ultrasound transmitter device simultaneously; Said at least three ultrasound transmitter device be used for sending respectively different frequency the ultrasonic wave form first apart from reference signal.

Adopt the beneficial effect of above-mentioned further scheme to be, a kind of first mode apart from the reference signal transmission of utilizing the ultrasonic signal form as carrier is provided.

Further, said reference cell comprises three ultrasound transmitter device and one modulation and start-up control device.

Further, said first is ultrasonic signal apart from reference signal.

Adopt the beneficial effect of above-mentioned further scheme to be; Adopt ultrasonic signal can realize accurate communication distance control; The communication controlled range can reach several meters even farther; Also can be in 1 meter, 0.5 meter even 10 cm range accurately control communication etc.; Adopt the ultrasonic wave scheme both can adapt on the desktop instant each other, exchange high speed data between the electronic equipment, also can adapt between the vehicle, instant, high-speed data exchange between vehicle and the gate etc. under the applicable cases, and mutual interference is littler mutually between ultrasonic wave and the first wireless communication unit signal of communication.

Further, said first wireless communication unit is Wi-Fi module, bluetooth module or UWB module.

Adopt the beneficial effect of above-mentioned further scheme to be, carry out exchanges data between main communication module and other communicator and can use various ways, satisfy the various ways communication requirement with communicating by letter.

Further, the wireless communication frequency band of said first wireless communication unit is 433MHz, 900MHz, 2.4GHz, 5.8GHz or 60GHz.

Adopt the beneficial effect of above-mentioned further scheme to be, realize high speed communication and exchanges data.

Further, said reference cell sends first and sets up radio communication apart from reference signal and said first wireless communication unit fast according to preset protocol and be connected the line data of going forward side by side and exchange and do not carry out simultaneously.

Adopt the beneficial effect of above-mentioned further scheme to be, first separates and carries out apart from the transmission of reference signal and the line data exchange of going forward side by side of establishing a communications link, after the line data of promptly going forward side by side when the establishing a communications link exchange; Stop first the transmission apart from reference signal; The transmission of winning apart from reference signal needn't be carried out at any time, thereby anti-stop signal interfere with each other, and improves efficiency of transmission and certainty of measurement; Device structure is simple to operation, and can save system resource.

Further, said reference cell sends first and fast sets up radio communication prior to said first wireless communication unit according to preset protocol apart from reference signal and connect the line data exchange of going forward side by side.

Adopt the beneficial effect of above-mentioned further scheme to be, anti-stop signal interferes with each other, and improves efficiency of transmission and certainty of measurement, and device structure is simple to operation, and can save system resource.

Further, reference cell sends first discontinuously apart from reference signal, and said first wireless communication unit carries out fast data exchange between said transmission first is apart from reference signal.

A kind of from communication module, comprise determination unit, second wireless communication unit and control said determination unit and second control unit of the second wireless communication unit work; Said determination unit be used to receive first apart from reference signal and judge apart from reference signal according to first said from communication module with send first and whether satisfy preset range apart from the communication distance between the signal emitting-source of reference signal, if satisfy then second wireless communication unit is set up radio communication fast according to preset protocol and connected the line data exchange of going forward side by side.

Above-mentioned beneficial effect from communication module is: through receiving first apart from reference signal; According to this first apart from reference signal judge this from communication module and signal emitting-source whether in preset communication distance scope; If in preset communication distance scope, can realize this from communication module in the predeterminable range scope immediately, radio communication and exchanges data fast and efficiently.Should be the hardware carrier of controlled the providing the foundation property of the efficient low coverage radio communication of quick access of communication context from communication module.

Further, said second wireless communication unit is set up speed that radio communication connects the line data exchange of going forward side by side and is higher than said determination unit and receives first speed apart from reference signal.

Further, said first contains signal emitting-source information and communication distance information apart from reference signal.

Adopt the beneficial effect of above-mentioned further scheme to be, be convenient to signal emitting-source confirmed and the distance judgement from communication module.

Further, said determination unit comprises first magnetic conduction circuitry in sequential series, first amplifying circuit, the first thresholding judgement and the demodulator circuit and second microcontroller; Said first magnetic conduction circuitry be used to respond to receive the magnetic signal form first apart from reference signal and convert thereof into electrical signal form, and send first amplifying circuit to; Said first amplifying circuit is used for amplifying and sending that first thresholding is judged and demodulator circuit to apart from reference signal first; Said first thresholding is judged and demodulator circuit is used to judge whether first reach predetermined threshold value apart from reference signal, if reached predetermined threshold value then send second microcontroller with first to apart from the signal emitting-source information that is contained in the reference signal; Said second microcontroller is used to control first magnetic conduction circuitry, first amplifying circuit and first thresholding to be judged and demodulator circuit, and sends the signal emitting-source information that receives to said second control unit.

Adopt the beneficial effect of above-mentioned further scheme to be, the passage of checking from communication distance between communication module and the signal emitting-source is provided.

Further, said determination unit also comprises second coding circuit, second drive circuit and the second emission of magnetic field coil; Said second microcontroller, second coding circuit, second drive circuit and the second emission of magnetic field coil are in sequential series; Said second microcontroller is used to control second coding circuit and second drive circuit; Said second coding circuit is used for pursuing bits of encoded from the wireless data frame of communication module information, and sends second drive circuit to; Said second drive circuit is used for the second emission of magnetic field coil is driven; The said second emission of magnetic field coil is used to produce contain from the second distance reference signal of communication module information and with the magnetic signal form and sends.

Adopt the beneficial effect of above-mentioned further scheme to be; From communication module a kind of mode of utilizing the magnetic signal form to send as the second distance reference signal of carrier is provided also, has been beneficial to corresponding receiver module or device and receives and judge and be somebody's turn to do from the communication distance between the communication module.

Further, said determination unit also comprises second modulation circuit that is arranged between second coding circuit and second drive circuit; Said second modulation circuit is used for modulating from communication module information behind second coding circuit coding, and sends second drive circuit to.

Adopt the beneficial effect of above-mentioned further scheme to be, can be as required to modulating from communication module information.

Further, said determination unit comprises at least three ultrasonic receivers and at least one demodulation and time comparison means, and said ultrasonic receiver is connected with demodulation and time comparison means respectively; Said at least three ultrasonic receivers be used for receiving respectively simultaneously different ultrasonic frequencies first apart from reference signal, and send demodulation and time comparison means to apart from reference signal with said first; Said demodulation and time comparison means be used for the different ultrasonic frequencies of respectively demodulation first apart from reference signal; And judge saidly whether satisfy preset range from the communication distance between communication module and the signal emitting-source according to the time difference that first of different ultrasonic frequencies arrive said determination unit apart from reference signal, if satisfy then send second control unit to apart from the signal emitting-source information that is contained in the reference signal with first.

Adopt the beneficial effect of above-mentioned further scheme to be, provide a kind of and judged signal emitting-source and scheme from communication distance between the communication module through ultrasonic signal, thus the judgement of realization communication distance.

Further, said first is ultrasonic signal apart from reference signal.

Adopt the beneficial effect of above-mentioned further scheme to be; Adopt ultrasonic signal can realize accurate communication distance control; The communication controlled range can reach several meters even farther; Also can be in 1 meter, 0.5 meter even 10 cm range accurately control communication etc.; Adopt the ultrasonic wave scheme both can adapt on the desktop instant each other, exchange high speed data between the electronic equipment, also can adapt between the vehicle, instant, high-speed data exchange between vehicle and the gate etc. under the applicable cases, and mutual interference is littler mutually between ultrasonic wave and the second wireless communication unit signal of communication.

Further, said second wireless communication unit is Wi-Fi module, bluetooth module or UWB module.

Adopt the beneficial effect of above-mentioned further scheme to be, can use various ways with communicating by letter, satisfy the various ways communication requirement from carrying out exchanges data between communication module and other communicator.

Further, the wireless communication frequency band of said second wireless communication unit is 433MHz, 900MHz, 2.4GHz, 5.8GHz or 60GHz.

Further, said determination unit receives first and sets up radio communication apart from reference signal and second wireless communication unit fast according to preset protocol and be connected the line data of going forward side by side and exchange and do not carry out simultaneously.

Adopt the beneficial effect of above-mentioned further scheme to be, first separates and carries out apart from the reception of reference signal and the line data exchange of going forward side by side of establishing a communications link, after the line data of promptly going forward side by side when the establishing a communications link exchange; Stop first the reception apart from reference signal; The reception and the judgement of winning apart from reference signal needn't be carried out at any time, thereby anti-stop signal interfere with each other, and improves efficiency of transmission and certainty of measurement; Device structure is simple to operation, and can save system resource.

Further, said determination unit receives first and fast sets up radio communication prior to said second wireless communication unit according to preset protocol apart from reference signal and connect the line data exchange of going forward side by side.

Further, said determination unit receives first discontinuously apart from reference signal, and said second wireless communication unit carries out fast data exchange between said reception first is apart from reference signal.

Description of drawings

Fig. 1 is a main communication module of the present invention and from the communication module structural representation;

Fig. 2 adopts one-way communication structure chart between reference cell and the determination unit of magnetic signal embodiment for the present invention;

Fig. 3 adopts two-way communication structure chart between reference cell and the determination unit of magnetic signal embodiment for the present invention;

Fig. 4 adopts the reference cell of ultrasonic signal embodiment and the communication structure figure between the determination unit for the present invention.

In the accompanying drawing, the list of parts of each label representative is following:

1, main communication module, 2, from communication module, 101, first control unit, 102, reference cell; 103, first wireless communication unit, 201, second control unit, 202, determination unit, 203, second wireless communication unit; 1021, first microcontroller, 1022, the forward transmitting element, 2021, second microcontroller, 2022, forward receives judging unit; 10221, first coding circuit, 10222, first drive circuit, 10223, the first emission of magnetic field coil, 10224, first modulation circuit; 20221, first magnetic conduction circuitry, 20222, first amplifying circuit, 20223, first thresholding judge and demodulator circuit, 2023, reverse transmitting element; 1023, oppositely receive judging unit, 20231, second coding circuit, 20232, second drive circuit, 20233, the second emission of magnetic field coil; 20234, second modulation circuit, 10231, second magnetic conduction circuitry, 10232, second amplifying circuit, 10233, second thresholding is judged and demodulator circuit; 1023, modulation and start-up control device, 1024, first ultrasound transmitter device, 1025, second ultrasound transmitter device, the 1026, the 3rd ultrasound transmitter device; 2023, demodulation and time comparison means, 2024, first ultrasonic receiver, 2025, second ultrasonic receiver, the 2026, the 3rd ultrasonic receiver.

Embodiment

Below in conjunction with accompanying drawing principle of the present invention and characteristic are described, institute gives an actual example and only is used to explain the present invention, is not to be used to limit scope of the present invention.

Fig. 1 is for the main communication module of the controlled efficient low coverage radio communication of quick access of communication range among the present invention with from the structural representation of communication module.Wherein, main communication module 1 be used to send contain main communication module information and communication distance information first apart from reference signal; First judge main communication module 1 and whether satisfy preset range according to what receive from communication module 2 from the distance of 2 of communication modules apart from reference signal, and if satisfied main communication module 1 with set up radio communication from communication module 2 fast according to preset protocol and be connected the line data of going forward side by side and exchange.Wherein, main communication module 1 and be higher than main communication module 1 and send first the speed apart from reference signal from setting up speed that radio communication connects the line data exchange of going forward side by side fast according to preset protocol between the communication module 2.

As shown in Figure 1, main communication module 1 comprises first control unit 101 of reference cell 102, first wireless communication unit 103 and control reference cell 102 and 103 work of first wireless communication unit; Second control unit 201 that comprises determination unit 202, second wireless communication unit 203 and control determination unit 202 and 203 work of second wireless communication unit from communication module 2.Wherein, there is from reference cell 102 to determination unit 202 forward communication port between reference cell 102 and the determination unit 202, also can has the reverse channel communication of 102 directions as required from determination unit 202 to reference cell; There is the bidirectional high speed radio communication channel between first wireless communication unit 103 and second wireless communication unit 203.Reference cell 102 is used for sending first apart from reference signal to determination unit 202 through the forward communication port; Determination unit 202 also can be used for sending the second distance reference signal to reference cell 102 through the reverse link communication passage as required.Determination unit 202 is used to receive that reference cell 102 sends first apart from reference signal; Judge main communication module 1 and whether satisfy preset range from the distance between the communication module 2; If satisfy then send second control unit 201 to apart from the main communication module information that contains in the reference signal with first; After second control unit 201 receives main communication module information, set up main communication module 1 fast and connect the line data exchange of going forward side by side according to preset protocol from the radio communication between the communication module 2 through first wireless communication unit 103 and second wireless communication unit 203.Certainly, as required, determination unit 202 also can have the function of said reference unit 102 and determination unit 202 respectively with reference cell 102, and determination unit 202 can send the second distance reference signal to reference cell 102 through the reverse link communication passage; Correspondingly first control unit 101 and second control unit 201 can have each other controlled function to realize main communication module 1 and from the range determination between the communication module 102.First wireless communication unit 103 and second wireless communication unit 203 carry out radio communication respectively under the control of first control unit 101 and second control unit 201.

Among the present invention; First wireless communication unit 103 and second wireless communication unit 203 can adopt Wi-Fi module, bluetooth module or the UWB module of 2.4GHz frequency range; To realize high-speed radio communication and the exchanges data between them, also can adopt other frequency, for example 433MHz; 900MHz, 5.8GHz and 60GHz etc.

High-speed radiocommunication unit access parameter between first wireless communication unit 103 and second wireless communication unit 203 mainly comprises the SSID (service set) of access channel, main communication module 1, physical address, key or the certificate etc. of main communication module 1.These parameters are mainly sent by the reference cell 102 in the main communication module 1, are received by determination unit 202 from communication module 2 (as 1 meter) in the agreement scope.Resolve these parameters from communication module 2, and relevant parameter is set is connected with main communication module 1; Carry out mutual authentication through key or certificate after connecting and determine whether to carry out subsequent exchange of data.

As required, the communication between reference cell 102 and the determination unit 202 can be adopted magnetic signal communication mode, ultrasonic signal communication mode etc.The following stated is that example describes the communication between reference cell 102 and the determination unit 202 with magnetic signal communication mode and ultrasonic signal communication mode respectively.

Magnetic signal communication embodiment

As shown in Figure 2, reference cell 102 is the magnetic signal reference cell, and determination unit 202 is the magnetic signal determination unit, and what reference cell 102 sent to determination unit 202 first is the magnetic signal form apart from reference signal.Wherein, reference cell 102 comprises first microcontroller 1021 in sequential series, first coding circuit 10221, first drive circuit 10222 and the first emission of magnetic field coil 10223; Wherein first microcontroller 1021 is used to control first coding circuit 10221 and first drive circuit 10222; First coding circuit 10221, first drive circuit 10222 and the first emission of magnetic field coil 10223 have been formed the first forward transmitting element 1022 apart from reference signal that is used to send the magnetic signal form.Determination unit 202 comprises that first magnetic conduction circuitry 20221 in sequential series, first amplifying circuit 20222, first thresholding judge and the demodulator circuit 20223 and second microcontroller 2021; Wherein second microcontroller 2021 is used to control first magnetic conduction circuitry 20221, first amplifying circuit 20222, first thresholding and judges and demodulator circuit 20223; First magnetic conduction circuitry 20221, first amplifying circuit 20222, first thresholding is judged and demodulator circuit 20223 has been formed forward and received judging unit 2022.Forward reception judging unit 2022 is used to receive magnetic signal and judges main communication module 1 and whether satisfy preset range from the distance between the communication module 2; If satisfy then send second microcontroller, 2021, the second microcontrollers 2021 to apart from the main communication module information that contains in the reference signal and send main communication module information to second control unit 201 with first.

Particularly, first coding circuit 10221 in the forward transmitting element 1022 is used for the wireless data frame of main communication module information is pursued bits of encoded, and sends first drive circuit 10222 to; First drive circuit 10222 is used for the first emission of magnetic field coil 10223 is driven, to produce low frequency alternating magnetic field; The first emission of magnetic field coil 10223 is used to produce and contains first of main communication module information and send to from communication module 2 apart from reference signal and with the magnetic signal form.

Forward receive first magnetic conduction circuitry 20221 in the judging unit 2022 be used to respond to receive magnetic signal form that main communication module 1 sends first apart from reference signal and convert thereof into electrical signal form; First amplifying circuit 20222 is used for first of electrical signal form is amplified apart from reference signal; First thresholding is judged and demodulator circuit 20223 is used to judge whether electrical signal form first reaches predetermined threshold value (for example threshold voltage) apart from reference signal, if reached preset threshold voltage then send second microcontroller 2021 with first to apart from the main communication module information in the reference signal.

As required; Forward transmitting element 1022 also can be used for the main communication module information behind first coding circuit 10221 coding is modulated in that first modulation circuit 10224 is set between first coding circuit 10221 and first drive circuit 10222, and sends first drive circuit 10222 to.

As required, can on the basis of one-way communication between reference cell shown in Figure 2 102 and the determination unit 202, expand, to realize the two-way communication between reference cell 102 and the determination unit 202, its structure is as shown in Figure 3.Determination unit 202 also comprises second coding circuit 20231, second drive circuit 20232 and the second emission of magnetic field coil 20233; Said second microcontroller 2021, second coding circuit 20231, second drive circuit 20232 and the second emission of magnetic field coil 20233 are in sequential series; Second microcontroller 2021 is used to control second coding circuit 20231 and second drive circuit 20232; Second coding circuit 20231, second drive circuit 20232 and the second emission of magnetic field coil 20233 have been formed to be used to send and have been contained from communication module information with from the reverse transmitting element 2023 of the second distance reference signal of the magnetic signal form of communication module communication distance information.Accordingly, reference cell 102 comprises that also second magnetic conduction circuitry 10231, second amplifying circuit 10232 and second thresholding judge and demodulator circuit 10233; Second magnetic conduction circuitry 10231, second amplifying circuit 10232, second thresholding is judged and demodulator circuit 10233 and first microcontroller 1021 are in sequential series; First microcontroller 1021 is used to control second magnetic conduction circuitry 10231, second amplifying circuit 10232 and second thresholding and judges and demodulator circuit 10233; Second magnetic conduction circuitry 10231, second amplifying circuit 10232 and second thresholding are judged and demodulator circuit 10233 has been formed reverse reception judging unit 1023.The reverse judging unit 1023 that receives is used to receive the second distance reference signal of magnetic signal form and judge whether satisfy preset range from the distance between communication module 2 and the main communication module 1, if satisfy then send first microcontroller 1021 with what contain in the second distance reference signal to from communication module information; First microcontroller 1021 will send first control unit 101 to from communication module information; First control unit 101 receives after communication module information, sets up main communication module 1 fast and connects the line data exchange of going forward side by side from the radio communication between the communication module 2 according to preset protocol through first wireless communication unit 103 and second wireless communication unit 203.

Particularly, as shown in Figure 3, second coding circuit 20231 in the reverse transmitting element 2023 is used for the wireless data frame of main communication module information is pursued bits of encoded, and sends second drive circuit 20232 to; Second drive circuit 20232 is used for the second emission of magnetic field coil 20233 is driven, and produces second low frequency alternating magnetic field; The second emission of magnetic field coil 20233 is used to produce contain from the second distance reference signal of communication module information and with the magnetic signal form and sends to main communication module 1.

Reverse second magnetic conduction circuitry 10231 that receives in the judging unit 1023 is used to respond to the second distance reference signal of the magnetic signal form that reception sends from communication module 2 and converts thereof into electrical signal form; Second amplifying circuit 10232 is used for the second distance reference signal of electrical signal form is amplified; Second thresholding is judged and demodulator circuit 10233 is used to judge whether electrical signal form second distance reference signal reaches predetermined threshold value, if reached then with sending first microcontroller 1021 to from communication module information in the second distance reference signal.

As required; Reverse transmitting element 2023 also can be used for modulating from communication module information behind second coding circuit, 20231 codings in that second modulation circuit 20234 is set between second coding circuit 20231 and second drive circuit 20232, and sends second drive circuit 20232 to.

Among this magnetic signal communication embodiment, magnetic conduction circuitry is made up of the circuit element that PCB (Printed Circuit Board, printed circuit board) coil, enamelled wire coil, hall device or other ability induced field change; Thresholding is judged and demodulator circuit is judged according to preset distance threshold the magnetic detectable voltage signals, does not reach not demodulation of thresholding and does not also allow communication, when reaching thresholding signal is carried out demodulation, and the signal after the demodulation is given second microcontroller.

Among this magnetic signal communication embodiment; Reference cell 102 can adopt low frequency magnetic induction telecommunication circuit with determination unit 202; Optional 500Hz, 1KHz, 1.5KHz, 2KHz, 2.5KHz, 3KHz, 4KHz, 5KHz, 10KHz, 20KHz, 30KHz or the 10MHz of selecting of its corresponding frequency utilizes the good characteristics of low frequency alternating magnetic field penetration performance to carry out the controlled communication in the predetermined distance scope.

The circuit that forward receives judging unit 2022 can adopt formations such as PCB coil, enamelled wire coil or hall device, giant magnetoresistance, magnetic induction switch usually.This circuit is not limited in these several kinds of elements.Anyly in principle can the transducer that changes of magnetic field changes the signal of telecommunication into be may be used to this module, unique restriction is can insert in the equipment that uses this unit.

Among this magnetic signal communication embodiment; Utilize low frequency alternating magnetic field to realize controlled communication distance scope; Utilize the high-speed radiocommunication passage to combine reference cell 102 and determination unit 202 to realize main communication modules 1 and be connected fast, utilize high-speed radiocommunication passage between first wireless communication unit 103 and second wireless communication unit 203 to realize main communication module 1 and simultaneously from the data communication of high speed between the communication module 2 from the reliable of communication module 2.It has following characteristics: 1, the reference cell 102 emission low frequency alternating magnetic field signals of main communication module 1; Need to receive this field signal from 2 of communication modules; Therefore can receiving coil or other receiving circuit miniaturization be enough to satisfy and implant from the small and exquisite requirement of the mobile device of communication module 2; 2, since receive signal a little less than, implanting in the mobile device of communication module 2 needs to increase amplifying circuit.Second wireless communication unit 203 of inserting simultaneously in the mobile device in addition can be high-speed radio wireless communication unit (Wi-Fi, bluetooth) thereby realizes the bidirectional high speed communication.As previously mentioned, the antenna of reference cell 102 on the main communication module 1 and determination unit 202 circuit on the communication module 2 is very little, can be integrated on the mobile device easily.

According to the selected frequency (500Hz, 1KHz, 1.5KHz, 2KHz, 2.5KHz, 3KHz, 4KHz, 5KHz, 10KHz, 20KHz, 30KHz or 10MHz) of present embodiment, system is comparatively accurate in the following operating distance scope control of this frequency.As a kind of expansion, system works neither be not on your life more than frequency at these, and possible effect is that the accuracy rating of distance control reduces, and the extension that is a kind of performance change is used.

In this execution mode; Realize the distance judgement through pre-set threshold value; Promptly main communication module is according to preset emission parameter emission low frequency magnetic signal; Receive this low frequency signal and convert voltage signal into from communication module 2, judge from whether getting into predefined coverage between communication module 2 and the main communication module 1 interval through predefined threshold voltage.This threshold value is to all identical from communication module 2, need not to different from communication module 2 make amendment (promptly so-called the calibration).

In the present embodiment, first modulation circuit 10224 or second modulation circuit 20234 can adopt multiple modulation system:

1) the carrier modulation mode is modulated: the baseband signal that first coding circuit 10221 or second coding circuit 20231 produce is modulated through

first modulation circuit

10224 or 20234 pairs of carrier waves of second modulation circuit; Carrier wave can be sine wave, square wave and triangular wave etc.; Modulation can be adopted switch frequency shift keying (OOK), phase shift keying, frequency shift keying (FSK) etc., and the signal after the modulation is loaded on the first emission of magnetic field coil 10223 or the second emission of magnetic field coil 20233 through first drive circuit 10222 or second drive circuit 20232;

2) the direct baseband transmission of carrierfree: the baseband signal that first coding circuit 10221 or second coding circuit 20231 produce directly is loaded on the first emission of magnetic field coil 10223 or the second emission of magnetic field coil 20233 through first drive circuit 10222 or second drive circuit 20232;

3) other modulation system: because the present invention adopts the threshold value judgment mode to carry out distance control; Therefore modulation system should not adopt amplitude modulation(PAM), can keep in every process of transmitting all can being used for the present invention from the communication module 2 interior substantially invariable modulation systems of detection signal amplitude;

First coding circuit 10221 or second coding circuit 20231 can adopt multiple coded system:

1) Manchester's code: bit 1 is encoded to two symbols 01, and bit 0 is encoded to 10.

2) Differential Manchester Encoding: two kinds of bit symbol sequences are arranged: 01 and 10, it is different with a last symbol sebolic addressing that bit 1 is encoded to, and 0 of bit is identical, and perhaps coding also can conversely.

3) other coded system: because the present invention adopts the thresholding judgment mode to carry out distance control, so low-frequency modulation signal should keep equal value stabilization.In a preferred embodiment, the sequence behind the coding does not contain DC component, and average DC component is that zero coded system all can be used for this preferred embodiment behind every coding.

In above-mentioned concrete realization circuit, the first emission of magnetic field coil 10223 or the second emission of magnetic field coil 20233 can be enamelled wire coil or PCB coil.The number of turn of the first emission of magnetic field coil 10223 or the second emission of magnetic field coil 20233 can be greater than 10 circles, and preferably, the number of turn is 50～500 circles.Preferably, filling has FERRITE CORE or iron core in the first emission of magnetic field coil 10223 or the second emission of magnetic field coil 20233.Preferably, the cross section of the first emission of magnetic field coil 10223 or second emission of magnetic field coil 20233 area that surrounds comprises the square region of border circular areas or the 3cm * 3cm of diameter 3cm at least.

Ultrasonic signal communication embodiment

As shown in Figure 4; In the present embodiment; Reference cell 102 comprises modulation and start-up control device 1023, first ultrasound transmitter device 1024, second ultrasound transmitter device 1025 and the 3rd ultrasound transmitter device 1026, and modulation and start-up control device 1023 are connected with the 3rd ultrasound transmitter device 1026 with first ultrasound transmitter device 1024, second ultrasound transmitter device 1025 respectively; Wherein, Modulation and start-up control device 1023 are used for main communication module information is modulated to first apart from reference signal, and start first ultrasound transmitter device 1024, second ultrasound transmitter device 1025 and the 3rd ultrasound transmitter device 1026 simultaneously to send the basic signal of distance of ultrasonic wave form; First ultrasound transmitter device 1024, second ultrasound transmitter device 1025 and the 3rd ultrasound transmitter device 1026 are used for sending respectively the ultrasonic signal of different frequency.Determination unit 202 comprises demodulation and time comparison means 2023, first ultrasonic receiver 2024, second ultrasonic receiver 2025 and the 3rd ultrasonic receiver 2026; Demodulation and time comparison means 2023 are connected with the 3rd ultrasonic receiver 2026 with first ultrasonic receiver 2024, second ultrasonic receiver 2025 respectively; Wherein, First ultrasonic receiver 2024, second ultrasonic receiver 2025 and the 3rd ultrasonic receiver 2026 are used for receiving respectively simultaneously the ultrasonic signal of the different frequency that first ultrasound transmitter device 1024, second ultrasound transmitter device 1025 and the 3rd ultrasound transmitter device 1026 sent, and send the ultrasonic signal of the different frequency that receives to demodulation and time comparison means 2023; Demodulation and time comparison means 2023 are used for the ultrasonic signal of demodulation different frequency respectively; And judge main communication module 1 and whether satisfy preset range from the distance between the communication module 2 according to the time difference that the ultrasonic signal of different frequency arrives determination unit 202, if satisfy then send second control unit 201 to apart from the main communication module information that contains in the reference signal with first.

In the present embodiment, modulation and start-up control device 1023 can through the OOK mode with main communication module information be modulated to the ultrasonic wave form first apart from reference signal; First ultrasonic receiver 2024, second ultrasonic receiver 2025 and the 3rd ultrasonic receiver 2026 can only distinguish corresponding receive different ultrasonic frequencies that first ultrasound transmitter device 1024, second ultrasound transmitter device 1025 and the 3rd ultrasound transmitter device 1026 send respectively first apart from reference signal; For example first ultrasonic receiver 2024 can only receive the signal of first ultrasound transmitter device 1024; Second ultrasonic receiver 2025 can only receive the signal of second ultrasound transmitter device 1025, and the 3rd ultrasonic receiver 2026 can only receive the 3rd ultrasound transmitter device 1026.

In the present embodiment; Reference cell 102 can adopt a plurality of modulation and start-up control device and the ultrasound transmitter device more than three; Corresponding determination unit 202 also can adopt a plurality of demodulation and time comparison means and the ultrasonic receiver more than three, but optimization scheme is modulation being adopted in the present embodiment and start-up control device, three sound transmitters, demodulation and time comparison means and three ultrasonic receivers.

In the present invention; Main communication module 1 is passed to main communication module information from communication module 2 through low frequency magnetic signal or ultrasonic signal; Give main communication module 1 through the bidirectional high speed radio communication channel of second wireless communication unit 203 and first wireless communication unit 103 with main communication module information retransmission from communication module 2; Main communication module 1 is passed through the correctness of the main communication module information of identification passback, and then has realized from the unique binding between communication module 2 and the main communication module 1.Accomplish main communication module 1 through the bidirectional high speed radio communication channel between first wireless communication unit 103 and second wireless communication unit 203 after binding and from the communication of the two-way high speed big data quantity between the communication module 2.

As a kind of embodiment, first apart from the transmission of reference signal with set up radio communication fast and be connected the line data exchange of going forward side by side and can not carry out simultaneously.Such as, first connects the line data exchange of going forward side by side and carries out prior to setting up radio communication fast apart from the transmission of reference signal; Perhaps main communication module 1 sends first discontinuously apart from reference signal, main communication module 1 and between said transmission first is apart from reference signal, carry out fast data exchange from communication module 2.When from communication module 2 according to receive first judge that apart from reference signal main communication module 1 and the distance between communication module 2 satisfy preset range after; With main communication module 1 with set up radio communication from communication module 2 fast according to preset protocol and be connected before the line data exchange of going forward side by side; Main communication module 1 and can break off first the transmission therebetween apart from reference signal from communication module 2; In case stop signal interferes with each other, improve efficiency of transmission and certainty of measurement, device structure is simple to operation; Save resource, can pass through following dual mode particularly:

1) sends definite signal from communication module 2 to main communication module 1; Main communication module 1 stops to send first apart from reference signal according to the definite signal that receives, main communication module 1 with set up radio communication fast according to preset protocol again from communication module 2 and be connected the line data of going forward side by side and exchange;

2) stop to receive said first earlier apart from reference signal from communication module, main communication module 1 with set up radio communication fast according to preset protocol again from communication module 2 and be connected the line data exchange of going forward side by side.

Main communication module 1 among the present invention with can be arranged at respectively the different main frames from communication module 2.Like this, main communication module information also can be host information, thereby can realize the quick access low coverage radio communication of the control communication range between the main frame.

Said main frame includes but not limited to intelligent terminal and/or intelligent transportation instrument etc.Wherein, intelligent terminal comprises products such as desktop computer, notebook computer, panel computer, palmtop PC, mobile phone, digital camera, DV, electronic reader, audio and video display device and DPF; The intelligent transportation instrument comprises intelligent automobile or has other vehicles such as automobile, train, aircraft or steamer that the data interaction function is provided.

The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. main communication module; It is characterized in that: comprise reference cell, first wireless communication unit and control said reference cell and first control unit of the first wireless communication unit work; Said reference cell is used for wireless transmission first apart from reference signal, and said first wireless communication unit is used for setting up radio communication fast according to preset protocol and connects the line data exchange of going forward side by side.

2. main communication module according to claim 1 is characterized in that: said first wireless communication unit is set up speed that radio communication connects the line data exchange of going forward side by side and is higher than said reference cell and sends first speed apart from reference signal.

3. main communication module according to claim 1 is characterized in that: said first contains this main communication module information and communication distance information apart from reference signal.

4. main communication module according to claim 1 is characterized in that: said reference cell comprises first microcontroller in sequential series, first coding circuit, first drive circuit and the first emission of magnetic field coil; Said first microcontroller is used to control first coding circuit and first drive circuit; Said first coding circuit is used for the wireless data frame of main communication module information is pursued bits of encoded, and sends first drive circuit to; Said first drive circuit is used for the first emission of magnetic field coil is driven; The said first emission of magnetic field coil is used to produce and contains first of main communication module information and send apart from reference signal and with the magnetic signal form.

5. main communication module according to claim 4 is characterized in that: said reference cell also comprises first modulation circuit that is arranged between first coding circuit and first drive circuit; Said first modulation circuit is used for the main communication module information behind first coding circuit coding is modulated, and sends first drive circuit to.

6. according to claim 4 or 5 described main communication modules; It is characterized in that: said reference cell also comprises second magnetic conduction circuitry, second amplifying circuit and judgement of second thresholding and demodulator circuit, and said second magnetic conduction circuitry, second amplifying circuit, the second thresholding judgement and demodulator circuit and first microcontroller are in sequential series; Said second magnetic conduction circuitry is used to respond to the second distance reference signal that contains signal emitting-source information that receives the magnetic signal form and convert thereof into electrical signal form, and sends second amplifying circuit to; Said second amplifying circuit is used for the second distance reference signal is amplified and sent that second thresholding is judged and demodulator circuit to; Said second thresholding is judged and demodulator circuit is used to judge whether the second distance reference signal reaches predetermined threshold value, if reached predetermined threshold value then send the signal emitting-source information in the second distance reference signal to first microcontroller; Said first microcontroller is used to control second magnetic conduction circuitry, second amplifying circuit and second thresholding to be judged and demodulator circuit, and sends the signal emitting-source information that receives to said first control unit.

7. according to each described main communication module of claim 1 to 5, it is characterized in that: said first is the low frequency magnetic signal apart from reference signal.

8. main communication module according to claim 7 is characterized in that: the frequency of said low frequency magnetic signal is 500Hz, 1KHz, 1.5KHz, 2KHz, 2.5KHz, 3KHz, 4KHz, 5KHz, 10KHz, 20KHz, 30KHz or 10MHz.

9. main communication module according to claim 8 is characterized in that: said second distance reference signal is the low frequency magnetic signal.

10. main communication module according to claim 9 is characterized in that: the frequency of said low frequency magnetic signal is 500Hz, 1KHz, 1.5KHz, 2KHz, 2.5KHz, 3KHz, 4KHz, 5KHz, 10KHz, 20KHz, 30KHz or 10MHz.

11. main communication module according to claim 1 is characterized in that:

Said reference cell comprises at least three ultrasound transmitter device and at least one modulation and start-up control device, and said modulation and start-up control device are connected with ultrasound transmitter device respectively; Said modulation and start-up control device are used for main communication module information is modulated into first apart from reference signal, and start said at least three ultrasound transmitter device simultaneously; Said at least three ultrasound transmitter device be used for sending respectively different frequency the ultrasonic wave form first apart from reference signal.

12. main communication module according to claim 11 is characterized in that: said reference cell comprises three ultrasound transmitter device and one modulation and start-up control device.

13. according to each described main communication module of claim 1 to 3, it is characterized in that: said first is ultrasonic signal apart from reference signal.

14. according to claim 1 to 5,11 or 12 each described main communication modules, it is characterized in that: said first wireless communication unit is Wi-Fi module, bluetooth module or UWB module.

15. according to claim 1 to 5,11 or 12 each described main communication modules, it is characterized in that: the wireless communication frequency band of said first wireless communication unit is 433MHz, 900MHz, 2.4GHz, 5.8GHz or 60GHz.

16. according to claim 1 to 5,11 or 12 each described main communication modules, it is characterized in that: said reference cell sends first and sets up radio communication apart from reference signal and said first wireless communication unit fast according to preset protocol and be connected the line data of going forward side by side and exchange and do not carry out simultaneously.

17. main communication module according to claim 16 is characterized in that: said reference cell transmission first is fast set up radio communication prior to said first wireless communication unit according to preset protocol apart from reference signal and is connected the line data exchange of going forward side by side.

18. main communication module according to claim 16 is characterized in that: reference cell sends first discontinuously apart from reference signal, and said first wireless communication unit carries out fast data exchange between said transmission first is apart from reference signal.

19. one kind from communication module, it is characterized in that: comprise determination unit, second wireless communication unit and control said determination unit and second control unit of the second wireless communication unit work; Said determination unit be used to receive first apart from reference signal and judge apart from reference signal according to first said from communication module with send first and whether satisfy preset range apart from the communication distance between the signal emitting-source of reference signal, if satisfy then second wireless communication unit is set up radio communication fast according to preset protocol and connected the line data exchange of going forward side by side.

20. according to claim 19 from communication module, it is characterized in that: said second wireless communication unit is set up speed that radio communication connects the line data exchange of going forward side by side and is higher than said determination unit and receives first speed apart from reference signal.

21. main communication module according to claim 19 is characterized in that: said first contains signal emitting-source information and communication distance information apart from reference signal.

22. according to claim 21 from communication module, it is characterized in that: said determination unit comprises first magnetic conduction circuitry in sequential series, first amplifying circuit, the first thresholding judgement and the demodulator circuit and second microcontroller; Said first magnetic conduction circuitry be used to respond to receive the magnetic signal form first apart from reference signal and convert thereof into electrical signal form, and send first amplifying circuit to; Said first amplifying circuit is used for amplifying and sending that first thresholding is judged and demodulator circuit to apart from reference signal first; Said first thresholding is judged and demodulator circuit is used to judge whether first reach predetermined threshold value apart from reference signal, if reached predetermined threshold value then send second microcontroller with first to apart from the signal emitting-source information that is contained in the reference signal; Said second microcontroller is used to control first magnetic conduction circuitry, first amplifying circuit and first thresholding to be judged and demodulator circuit, and sends the signal emitting-source information that receives to said second control unit.

23. according to claim 22 from communication module, it is characterized in that: said determination unit also comprises second coding circuit, second drive circuit and the second emission of magnetic field coil; Said second microcontroller, second coding circuit, second drive circuit and the second emission of magnetic field coil are in sequential series; Said second microcontroller is used to control second coding circuit and second drive circuit; Said second coding circuit is used for pursuing bits of encoded from the wireless data frame of communication module information, and sends second drive circuit to; Said second drive circuit is used for the second emission of magnetic field coil is driven; The said second emission of magnetic field coil is used to produce contain from the second distance reference signal of communication module information and with the magnetic signal form and sends.

24. according to claim 23 from communication module, it is characterized in that: said determination unit also comprises second modulation circuit that is arranged between second coding circuit and second drive circuit; Said second modulation circuit is used for modulating from communication module information behind second coding circuit coding, and sends second drive circuit to.

25. each is described from communication module according to claim 19 to 24, it is characterized in that: said first is the low frequency magnetic signal apart from reference signal.

26. according to claim 25 from communication module, it is characterized in that: the frequency of said low frequency magnetic signal is 500Hz, 1KHz, 1.5KHz, 2KHz, 2.5KHz, 3KHz, 4KHz, 5KHz, 10KHz, 20KHz, 30KHz or 10MHz.

27. according to claim 23 or 24 described from communication module, it is characterized in that: said second distance reference signal is the low frequency magnetic signal.

28. according to claim 27 from communication module, it is characterized in that: the frequency of said low frequency magnetic signal is 500Hz, 1KHz, 1.5KHz, 2KHz, 2.5KHz, 3KHz, 4KHz, 5KHz, 10KHz, 20KHz, 30KHz or 10MHz.

29. according to claim 21 from communication module, it is characterized in that:

Said determination unit comprises at least three ultrasonic receivers and at least one demodulation and time comparison means, and said ultrasonic receiver is connected with demodulation and time comparison means respectively;

Said at least three ultrasonic receivers be used for receiving respectively simultaneously different ultrasonic frequencies first apart from reference signal, and send demodulation and time comparison means to apart from reference signal with said first;

Said demodulation and time comparison means be used for the different ultrasonic frequencies of respectively demodulation first apart from reference signal; And judge saidly whether satisfy preset range from the communication distance between communication module and the signal emitting-source according to the time difference that first of different ultrasonic frequencies arrive said determination unit apart from reference signal, if satisfy then send second control unit to apart from the signal emitting-source information that is contained in the reference signal with first.

30. according to claim 19 to 21,29 each is described from communication module, it is characterized in that: said first is ultrasonic signal apart from reference signal.

31. according to claim 19 to 24,29 each described main communication modules, it is characterized in that: said second wireless communication unit is Wi-Fi module, bluetooth module or UWB module.

32. according to claim 19 to 24,29 each described main communication modules, it is characterized in that: the wireless communication frequency band of said second wireless communication unit is 433MHz, 900MHz, 2.4GHz, 5.8GHz or 60GHz.

33. according to claim 19 to 24,29 each described main communication modules, it is characterized in that: said determination unit receives first and sets up radio communication apart from reference signal and second wireless communication unit fast according to preset protocol and be connected the line data of going forward side by side and exchange and do not carry out simultaneously.

34. main communication module according to claim 33 is characterized in that: said determination unit reception first is fast set up radio communication prior to said second wireless communication unit according to preset protocol apart from reference signal and is connected the line data exchange of going forward side by side.

35. main communication module according to claim 33 is characterized in that: said determination unit receives first discontinuously apart from reference signal, and said second wireless communication unit carries out fast data exchange between said reception first is apart from reference signal.