CN1960370A - Portable type information switching unit, and information switching method - Google Patents
Portable type information switching unit, and information switching method Download PDFInfo
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- CN1960370A CN1960370A CN 200510118339 CN200510118339A CN1960370A CN 1960370 A CN1960370 A CN 1960370A CN 200510118339 CN200510118339 CN 200510118339 CN 200510118339 A CN200510118339 A CN 200510118339A CN 1960370 A CN1960370 A CN 1960370A
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Abstract
The portable information exchanging device is used to send its built-in information, and meanwhile to receive the information from other portable information exchanging devices in order to exchange the information in short distance. It comprises MPU, packaging/de-packaging module, transmission module, receiving module, matching module, memory, data inputting module and display module. It also features a frequency selecting and hopping module connected to the MPU for use in selecting a clear channel or hopping to an appointed channel and sending relevant information to MPU.
Description
[affiliated technical field]
The present invention relates to a kind of message exchange and method, particularly realize the apparatus and method of transmission of Information, exchange about the mode of utilizing short-distance wireless communication.
[background technology]
Development along with industrial and commercial society, people have much to do in the work of oneself every day invariably fast pace, have no time to attend to the amusement outside the work, the people of the contacts that contact is only limited to intra-company or same departmental staff basically, cause social circle more and more littler, all cause very big problem at aspects such as seeking friend, learning and communication for people.
Chinese patent No. 01123156, is called the patent of " radio electronic friend-selecting machine ", it has disclosed a kind of friend-selecting machine, as shown in Figure 1, the user is by the master data of the configuration switch input oneself of data input device 12, receive processing by signal comparison process device 13 and form many bist datas, emitter 15 regularly outwards sends these many bist datas.Behind bist data and matched data that receiver module 11 other radio electronic friend-selecting machines of reception are launched, with bist data and matched data demodulation output, receive and compare through signal comparison process device 13 with the bist data of its internal reservoir, comparative result shows output by display unit 14, when the two mates, send feedback information to the sender.Though this patent has been realized wireless friend-making purpose, but because the function that the unmatchful information that receives of described device is stored, last information will be capped when it received an information, and when device cuts off the power supply, current information is unfavorable for both sides' communication also along with losing.In addition, in the technical scheme that existing patent disclosed, transmission information is to adopt the mode of broadcasting, and both do not have specific channel to carry out transfer of data, then when the people carries out exchange message more, causes signal to disturb easily.
[summary of the invention]
In order to solve the technical disadvantages that existing short distance internal information switch exists, the invention provides a kind of portable type information switching unit that is applicable to short distance internal information exchange, the Information Security when it has validity height, the communication of easy to operate, information exchange, the advantage of strong interference immunity.
The present invention also provides a kind of information switching method that is applicable in the short distance, and it has the fast advantage of validity height, strong interference immunity, transmission speed of information exchange.
The portable type information switching unit that the present invention proposes, in order to send the built-in information in it, receive the information that other portable type information switching units send simultaneously, to reach the information exchange in short distance, it comprises: microprocessor, and it is controlled whole device; Package/parse module, it links to each other with microprocessor, the data that send is carried out package, and the data of receiving are unpacked; Sending module, it links to each other with package/parse module, the packet that sends is encapsulated meeting the form of RF host-host protocol, and be responsible for sending; Receiver module, it links to each other with package/parse module, be responsible for receiving packet, and packet unpacks so that package/parse module can be discerned to receiving; Matching module, it links to each other with microprocessor, and the data received and built-in information or identifying information are compared, and judges whether it mates or not from the transmitting terminal that is complementary with it, and corresponding information is sent to microprocessor; Frequency-selecting frequency hopping module, it links to each other with microprocessor, in order to selecting clean channel or to jump to channel appointed, and corresponding information is sent to microprocessor; Memory cell, it links to each other with microprocessor, in order to the storage data; Data input module, it links to each other with microprocessor, for the user provides operation interface; And display module, it links to each other with microprocessor, in order to display message.
Described portable type information switching unit also comprises Error Control module, it is connected between receiver module and the microprocessor, the information that this Error Control module is received receiver module is carried out verification, with the validity of the data that guarantee to receive, and check results is fed back to microprocessor.
Described portable type information switching unit also comprises Error Control module, also comprises timing module, and it links to each other with microprocessor, is responsible for providing overtime detection, timing service.
Described microprocessor also comprises the system mode handover module, and the message that it is sent according to package/parse module and timing module is responsible for the switching of the working state of system in the whole communication process.
Described operating state has transmit status, accepting state, idle condition.
Described portable type information switching unit also comprises synchronization character generator and address generator, and it all links to each other with microprocessor; The synchronization character generator produces a synchronization character automatically, at random according to the instruction of microprocessor; Address generator produces an address automatically, at random according to the instruction of microprocessor.
Frequency-selecting frequency hopping module jumps to channel appointed according to synchronization character in the time of appointment.
Described portable type information switching unit also comprises communication interface, and in order to connect main equipment such as computer, this communication interface is USB interface or 1394 interfaces.
Described memory cell is a non-volatile memory medium.
A kind of method that realizes the information exchange between portable type information switching unit comprises transmit leg and recipient, comprises the steps:
(1) sending direction sends broadcast packet outward, comprises match information in the broadcast packet and claims parameter, and system is in idle condition;
Whether (2) recipient receives broadcast packet, judge and oneself mate;
If match information is identical, then be judged as the condition coupling, the user who obtains in the broadcast packet claims, select clean channel, modified address simultaneously and send details to respond bag, these details are responded claiming of pre-channel number, amended address, synchronization character and the transmit leg of jumping of bag parameter band, and enter pre-accepting state, wait for the other side's echo; If have no reply at the appointed time, then get back to idle condition;
If match information is inequality, then do not do any response, system still is in idle condition;
(3) " be local claiming, then the echo that the details response is wrapped is received in transmission, and system enters pre-transmit status, according to modified address, the address parameter of receiving after transmit leg receives that the details response is wrapped, to check the parameters " title;
(4) after the recipient receives that details are responded the echo of bag, whether match address is correct, correct then send the order begin to send data now, and order the other side enters transmit status immediately to send data, oneself also enters accepting state immediately, waits for the other side's packet; If the free of data bag sends at the appointed time, then get back to idle condition;
(5) according to the time of synchronization character appointment, transmit leg and recipient jump to channel appointed simultaneously;
(6) the transmit leg system enters transmit status, sends the order bag begin to receive data, receive recipient's echo to this order bag after, the transmission packet is waited for the other side's echo then; If do not receive the other side's echo at the appointed time, then get back to idle condition.
(7) after the recipient enters accepting state, just wait for the other side's packet, receive bag of a bag response; If free of data bag is at the appointed time then got back to idle condition.
(8) transmit leg sends the packet that finishes and then sends the order that finishes to receive data, receive recipient's echo to this order after, the channel of rebound system default, the address returns to default value, system mode is made as idle condition;
(9) recipient receives the order that finishes to receive data, then sends the echo of this order, the channel of rebound system default, and the address returns to default value, and system mode is made as idle condition.
The channel value of the described system default in the method for the information exchange between described realization portable type information switching unit is 0, and the default value of described address is 0.
The outer broadcast packet that sends of described sending direction in the method for the information exchange between described realization portable type information switching unit is outwards to send in mode regularly.
Recipient in the method for the information exchange between described realization portable type information switching unit preserves the data of its reception after receiving that the end of transmit leg receives the order of data.
Recipient in the method for the information exchange between described realization portable type information switching unit or transmit leg are after receiving the other side's package, all can carry out effectively capable verification to the data in its package of receiving, if check results is damaged for these data or is imperfect, then will not receive.
Portable type information switching unit of the present invention and information switching method thereof have the following advantages with respect to prior art:
1. error control: adopt the CRC16 verification, the packet of receiving all is CHECKSUM handles, guarantee validity to the data of receiving.
2. clocking capability: make up delayed retransmission, do not receive in a period of time that echo then retransmits, improve the anti-interference of communication.
Whenever 3. prevent co-channel interference: set up select frequency automatically frequency hopping mechanism, in a channel, have only two machines, realize the transmission safely and fast of large-scale data at swap data.
4. the address is as identifying information: calculated address automatically, filter out the information of non-target, and the back that prevents to connect is disturbed with the product machine.
5. synchronization character function: adopt the mode of synchronization character, cooperate the address, make the both sides of swap data enter channel appointed simultaneously, provide assurance for both sides carry out exchanges data at same channel.
6. memory function: when both sides when having exchanged data, data can be preserved.
7. wrap back an interaction mechanism that wraps by sending out one, strengthen robustness, reliability and the robustness of this method.
8. because exchanges data of the present invention is in short-range, the size of code of whole agreement is for being no more than 30KByte, and it is low that it occupies resource, is suitable for some storage resources single-chip microcomputer, the MCU of anxiety relatively.
[description of drawings]
Fig. 1 is the functional block diagram of the message exchange of prior art.
Fig. 2 is the functional block diagram of portable type information switching unit of the present invention.
Fig. 3 is the workflow diagram of portable type information switching unit of the present invention as receiver.
Fig. 4 is the workflow diagram of portable type information switching unit of the present invention as transmitter.
Fig. 5 is a flow chart of realizing the method for information exchange of the present invention.
[embodiment]
Portable type information switching unit provided by the invention in order to send the built-in information in it, receives the information that other portable type information switching units send simultaneously, to reach the information exchange in short distance.As shown in Figure 1, comprise microprocessor, package/parse module, sending module, receiver module, Error Control module, timing module, matching module, frequency-selecting frequency hopping module, memory cell, data input module, display module, data exchange interface, synchronization character generator and address generator, wherein, package/parse module, Error Control module, timing module, matching module, frequency-selecting frequency hopping module, memory cell, data input module, display module, data exchange interface, the synchronization character generator all links to each other with microprocessor with address generator, and sending module links to each other with package/parse module respectively with receiver module.
Microprocessor is controlled whole device, and it comprises the system mode handover module.
Sending module is responsible for the data envelope that will send being dressed up the form that meets RF (frequency modulation, radio frequency) transmission agreement and being responsible for sending.
The data structure of the exchange among the present invention is:
Table 1:
| The address | The sign bag | Redundancy check code | Data |
Address (ADDR) is by the automated randomized generation of address generator, is the identifying informations of both sides when swap data, prevents to be disturbed with the product machine in the back that connects, and is generally 0～255 byte.
The type of sign bag has data and orders two kinds, as being 1 (code is 1 byte) when its inner information, then represents the broadcast data packet that this sign bag sends for the sender.The information representation of other sign bag is as follows:
ENUM{RFMsgNothing=0, // type do not had
Broadcast=1, // broadcasting
SendMeDetailFile=n2, the order of // transmission details
StartRxData=n3, // begin to receive data command
DataPkg=n4, // packet
EndRxData=n5, // end receives data command
AckSendDetail=n6, // response sends the details order
AckStartRxData=n7, // response begins to receive data command
JumpToTXNow=n8, // begin to send data command now
AckDataPkg=n9, // response data bag
AckEndRxData=n10, // respond and finish to receive data command
}；
Wherein, n2-n10 is a code, and the size of each code the most very much not can surpass the 30k byte.
Whether redundancy check code is to be used for check data to suffer damage at transport process.The data message position concern redundancy check code that affix is certain according to certain earlier before channel sends, and constitutes transmission again after the code word, and this process is called the error control coding process.After receiving terminal was received this code word, whether the relation between inspection message position and the additional redundancy check code had mistake to take place, this process is called checkout procedure to check in the transmission course.By package/parse module the data message that will send is encapsulated among the present invention, in encapsulation process, produce described redundancy check code.Data structure after the encapsulation is as shown in table 1.
The present invention adopts CRC16 (Cyclic Redundancy Check, cyclic redundancy check (CRC)) check for errors control method.
Data are real data.
For example: sending module externally sends broadcasting, and then the data structure of this broadcasting is, as table 2.
Table 2:
| Address (1 byte) | Broadcasting (1 byte) | Redundancy check code (10 byte) | The user claims (20 byte) | What group (1 byte) user belongs to |
Address in broadcast packet is the default value 0 of system when initial.
The user is called user oneself and defines in mydetail (details) file, it can be stored by copying to after being provided with in computer in the memory cell in apparatus of the present invention, also can directly also edit by the data input module input information, and store in the memory cell by the user.In the time will externally sending information, microprocessor can call the information that the user claims in the memory cell, and this information is sent in package/parse module, sends by sending module.
The component that the user belongs to is as the information of user's searching with own matching condition, that is match information.
For example be preset with the information of following component among the present invention.
enum{
StudyGroup=0, // learning and communication group--study together
PlayGroup=1 // amusement and recreation group--play together
HelpGroup=2 // friend helps each other, and the group--give me a break
BusinessGroup=3 // Business Partner group--hand over a friend
OpenGroup=4 // opening group----understanding understanding
}；
User's group can be edited immediately, and the user imports corresponding digital by data input module, sends by broadcast message.As the numeral that the user imported is 0, represents its selected group to be " learning and communication group ", and store this information in matching module.When this device is received the broadcast message that similar other products sends, and the group information of the group information in this broadcast message and this device is consistent, illustrates that then both mate.By group information, the user can find matched object with it.
Receiver module is used to receive the packet that the sending module of other portable type information switching units sends over, and sends to Error Control module after the packet that is received unpacked and verify its correctness.Error Control module among the present invention adopts the CRC16 method of calibration, the packet of receiving all is CHECKSUM (summation) handles.
The system mode handover module is detected, is switched the operating state of whole device.The message that it is sent according to package/parse module and timing module is responsible for the switching of the working state of system in the whole communication process.
Timing module is responsible for providing overtime detection, timing service.Provide every 3 seconds the once timing services of broadcasting as this timing module, or after the other side's transmission information, the other side has no reply in official hour, or retransmitted information N time, the other side still has no reply, then this timing module can provide an overtime information to microprocessor, and the system mode control module in the microprocessor is according to this information switched system state.
Frequency-selecting frequency hopping module is responsible for selecting a clean at that time channel, so that the both sides of information exchange can carry out exchanges data in a clean channel, is not subjected to other third-party interference.Frequency-selecting frequency hopping module is got a channel number earlier at random, checks simultaneously whether this channel is busy, if busy, then selects an other channel, clean up to getting access to, the current channel that is not used.After frequency-selecting frequency hopping module is obtained clean channel, this channel is sent to microprocessor.Simultaneously, this frequency-selecting frequency hopping module also realizes the function of frequency modulation, when this device is received the other side's information, and when including channel appointed information in this information, microprocessor is controlled this frequency-selecting frequency hopping module and is jumped to channel appointed, so that both sides carry out exchanges data in channel appointed.This device can be realized the mechanism of select frequency automatically, frequency hopping by frequency-selecting frequency hopping module, thereby realizes safe, the quick transmission of large-scale data.
The data that Error Control module cooperates receiver module that receiver module is received are tested, and whether check data is correct.Error Control module adopts the CRC16 verification, the packet of receiving all is CHECKSUM handles.Result after microprocessor is checked according to Error Control module controls package/parse module and whether receives data, if the assay of Error Control module is correct, then microprocessor just sends command request package/parse module and receives this data; If the assay of Error Control module is incorrect, microprocessor is made corresponding processing, and control package/parse module does not receive these data.
Data that matching module receives this device and The built-in or recognition data compare, judge whether it mates or not from the transmitting terminal that is complementary with it, do not disturbed by the information of similar other products with the communication that guarantees both sides.
Address generator produces an address automatically, at random according to the instruction of microprocessor, and this address is in order to as an identifying information when both sides' swap data, and the back that prevents to connect is disturbed by the like product machine.
The synchronization character generator produces a synchronization character automatically, at random according to the instruction of microprocessor, and this synchronization character is that the expression both sides jump to channel appointed simultaneously in official hour, to prevent the interference of other like product.As to set this synchronization character be 5 seconds, and then both sides experience at the same time in same time after 5 seconds and jump to channel appointed.This synchronization character can be that the mode with increasing or decreasing realizes.By this synchronization character, can filter out the inhomogeneity product, make like product that clean channel be arranged, that is, in a channel, have only two machines simultaneously in communication.
The information that display unit maybe will send in order to the information that shows this device and receive, it can be LCD or other display.
Data input module is a button, and the user can import the built-in data that it is wanted by this module, as the group of selection input or the code of other information.
Data exchange interface is to set up being connected of this device and main equipment such as computer, and it can be the usb interface, also can be 1394 interfaces.Data exchange interface can be that wired interface also can be wireless interface.
Memory cell bit non-volatile memory is as flash memory.
As shown in Figure 3, device of the present invention is such as the operation principle of receiver:
Opening power (figure does not show), microprocessor work, device are in operation RF function, and are in accepting state.
After receiver module is received the broadcast packet that the sending module of other device sends, whether Error Control module at first checks this broadcast packet to be damaged, if be not damaged, microprocessor control package/parse module receives information, and this information is sent to microprocessor.The The built-in data are obtained in the work of microprocessor control matching module, and the broadcast packet and the bist data that receive are compared, and see whether the other side's condition mates.Continue to receive other broadcast packet if do not match, and on display, show the printed words of " do not match, continue to receive ".If coupling, microprocessor control address generator, synchronization character generator, frequency-selecting frequency hopping module and timing module work simultaneously, are stored into the broadcast packet that receives in the memory cell.System mode handover module switching state makes this device be in transmit status.The identifying information of the other side in the address that microprocessor produces address generator, synchronization character that the synchronization character generator produces, clean channel that frequency-selecting frequency hopping module is selected and the broadcast packet received sends package/parse module to as information such as titles, sends to sending module after by package/parse module those information being encapsulated, pack.Information after sending module will encapsulate is handled, and sends to the other side so that it meets the RF data packets for transmission.The timing module timing.When the other side does not have letter in reply in the time in appointment, and retransmitted information several times, still do not had letter in reply, then system mode handover module switching state makes this device be in accepting state.
When the other side writes in reply in official hour, both sides jump in the channel appointed simultaneously according to synchronization character, and after connecting, this device receives data in this channel.After Data Receiving was intact, frequency-selecting frequency hopping module jumped back to the channel (being made as 0 as initial channel) of initial setting, and system is in accepting state again.
As shown in Figure 4, device of the present invention is such as the operation principle of transmitter:
Start, system's RF function that brings into operation, a time that regularly sends broadcast packet is set in timing module work, as 3 seconds broadcast packets.After receiving the echo of broadcast packet, frequency-selecting frequency hopping module is jumped into the other side's channel appointed immediately, carries out data and sends.After sending data, frequency-selecting frequency hopping module jumps back to the channel (being made as 0 as initial channel) of original initial setting.System continues to send out in per 3 seconds a broadcast packet.
As shown in Figure 5, be to realize that the present invention's two table apparatus carry out the dynamic flow diagram of method for interchanging data: at first the illustrative system state is divided into following several situations:
Enum SysStaue{IdleTask=0, // the free time
PreRXTask=1, // pre-accepting state
RxTask=2, // accepting state
PreTxTask=3, // pre-transmit status
TxTask=4, // transmit status
}；
Replenish other titles of explanation earlier simultaneously:
Channel: channel; Sync: synchronization character.
[machine A] sends broadcast packet every regular hour such as 3S, and the form of broadcast packet is as shown in table 1, and system is in { IdleTask} state.
[machine B] receives broadcast packet
User in the broadcast packet and oneself are groups, and promptly match information is identical, then are judged as the condition coupling.The user who then obtains in the broadcast packet claims, search the file of receiving that whether this claims, then do not preserve, select clean channel, modified address simultaneously and send data (the pre-channel number of jumping of this SendmeDetail parameter band of SendmeDetail, with amended address, synchronization character and [machine A] claim), and enter the PreRFTask state, wait for the other side's echo, if have no reply at the appointed time, then retransmit several times, still have no reply, then get back to the IdleTask state if retransmitted N time.
[machine A] receives SendmeDetail
Checking parameters " claims " be that local machine claims; then send AcksendDetail echo bag; system enters the PreTXTask state; according to modified address, the address parameter of receiving; and jump into [machine B] channel appointed with the address of receiving automatically according to the synchronization character of receiving (being mode timing in the present embodiment) in the time of appointment to increase progressively; then system enters the TXTask state, sends StartRxData order bag, wait the other side echo.If have no reply at the appointed time, then retransmit several times, still have no reply if retransmitted N time, then get back to the IdleTask state.
[machine B] receives AckSendDetail echo bag
Whether ADDR is correct for coupling, correctly then send the JumptoTXNow order, order the other side enters TXTask state transmission data immediately, and (mode by this kind order can save time, reach the purpose of quick interchange), oneself also enters the RXTask state immediately, wait for the other side's packet,, then get back to the IdleTask state if the free of data bag sends at the appointed time.
According to the time of synchronization character appointment, [machine A] and [machine B] jumps to channel appointed simultaneously.
After [machine A] enters the TXTask state, send StartRxData order bag earlier, after receiving ackStartRxData echo bag, send the DataPkg packet, wait for ackDataPkg echo bag then,, then retransmit several times if having no reply at the appointed time, still have no reply if retransmitted N time, then get back to the IdleTask state.
After [machine B] enters RXTask, just wait for the other side's packet, receive bag of a bag response, if free of data bag is at the appointed time then got back to the IdleTask state.
[machine A] sends the packet that finishes and then sends the EndRxData order, receive the ackEndRxData echo after, in the mode of successively decreasing, synchronization character jumps back to the channel of rebound system default behind the original value, as present embodiment is 0, and the address returns to default value, and system mode is made as the IdleTask state.
[machine B] receives the EndRxData order, then sends the ackEndRxData echo, preserves file, and the channel of rebound system default is 0 as present embodiment, and the address returns to default value, is 0 as present embodiment, and system mode is made as the IdleTask state.
Wherein, recipient or transmit leg all can carry out effectively capable verification to the data in its package of receiving after receiving the other side's package, if check results is damaged for these data or is imperfect, then will not receive.In the present embodiment, adopt the CRC16 check addition, to the processing of suing for peace of the data in the package of receiving.
Claims (14)
1. a portable type information switching unit in order to send the built-in information in it, receives the information that other portable type information switching units send simultaneously, and to reach the information exchange in short distance, it comprises: microprocessor, and it is controlled whole device;
Package/parse module, it links to each other with microprocessor, the data that send is carried out package, and the data of receiving are unpacked;
Sending module, it links to each other with package/parse module, the packet that sends is encapsulated meeting the form of RF host-host protocol, and be responsible for sending;
Receiver module, it links to each other with package/parse module, be responsible for receiving packet, and packet unpacks so that package/parse module can be discerned to receiving;
Matching module, it links to each other with microprocessor, and the data received and built-in information or identifying information are compared, and judges whether it mates or not from the transmitting terminal that is complementary with it, and corresponding information is sent to microprocessor;
Memory cell, it links to each other with microprocessor, in order to the storage data;
Data input module, it links to each other with microprocessor, for the user provides operation interface; With
Display module, it links to each other with microprocessor, in order to display message;
It is characterized in that: also comprise frequency-selecting frequency hopping module, frequency-selecting frequency hopping module links to each other with microprocessor, and it is in order to selecting clean channel or to jump to channel appointed, and corresponding information is sent to microprocessor.
2. portable type information switching unit as claimed in claim 1, it is characterized in that: also comprise Error Control module, it is connected between receiver module and the microprocessor, the information that this Error Control module is received receiver module is carried out verification, with the validity of the data that guarantee to receive, and check results fed back to microprocessor.
3. portable type information switching unit as claimed in claim 2 is characterized in that: also comprise timing module, it links to each other with microprocessor, is responsible for providing overtime detection, timing service.
4. portable type information switching unit as claimed in claim 3, it is characterized in that: described microprocessor also comprises the system mode handover module, the message that it is sent according to package/parse module and timing module is responsible for the switching of the working state of system in the whole communication process.
5. portable type information switching unit as claimed in claim 4 is characterized in that: described operating state has transmit status, accepting state, idle condition.
6. portable type information switching unit as claimed in claim 4 is characterized in that: also comprise synchronization character generator and address generator, it all links to each other with microprocessor; The synchronization character generator produces a synchronization character automatically, at random according to the instruction of microprocessor; Address generator produces an address automatically, at random according to the instruction of microprocessor.
7. portable type information switching unit as claimed in claim 6 is characterized in that: frequency-selecting frequency hopping module jumps to channel appointed according to synchronization character in the time of appointment.
8. as the described portable type information switching unit of claim 1-7, it is characterized in that: also comprise communication interface, in order to connect main equipment such as computer, this communication interface is USB interface or 1394 interfaces.
9. as the described portable type information switching unit of claim 1-7, it is characterized in that: described memory cell is a non-volatile memory medium.
10. a method that realizes the information exchange between portable type information switching unit comprises transmit leg and recipient, it is characterized in that, comprises the steps:
(1) sending direction sends broadcast packet outward, comprises match information in the broadcast packet and claims parameter, and system is in idle condition;
Whether (2) recipient receives broadcast packet, judge and oneself mate;
If match information is identical, then be judged as the condition coupling, the user who obtains in the broadcast packet claims, select clean channel, modified address simultaneously and send details to respond bag, these details are responded claiming of pre-channel number, amended address, synchronization character and the transmit leg of jumping of bag parameter band, and enter pre-accepting state, wait for the other side's echo; If have no reply at the appointed time, then get back to idle condition; If match information is inequality, then do not do any response, system still is in to not busy state;
(3) " be local claiming, then the echo that the details response is wrapped is received in transmission, and system enters pre-transmit status, according to modified address, the address parameter of receiving after transmit leg receives that the details response is wrapped, to check the parameters " title;
(4) after the recipient receives that details are responded the echo of bag, whether match address is correct, correct then send the order begin to send data now, and order the other side enters transmit status immediately to send data, oneself also enters accepting state immediately, waits for the other side's packet;
If the free of data bag sends at the appointed time, then get back to idle condition;
(5) according to the time of synchronization character appointment, transmit leg and recipient jump to channel appointed simultaneously;
(6) the transmit leg system enters transmit status, sends the order bag begin to receive data, receive recipient's echo to this order bag after, the transmission packet is waited for the other side's echo then; If do not receive the other side's echo at the appointed time, then get back to idle condition.
(7) after the recipient enters accepting state, just wait for the other side's packet, receive bag of a bag response; If free of data bag is at the appointed time then got back to idle condition.
(8) transmit leg sends the packet that finishes and then sends the order that finishes to receive data, receive recipient's echo to this order after, the channel of rebound system default, the address returns to default value, system mode is made as idle condition;
(9) recipient receives the order that finishes to receive data, then sends the echo of this order, the channel of rebound system default, and the address returns to default value, and system mode is made as idle condition.
11. the method for the information exchange between realization portable type information switching unit as claimed in claim 10 is characterized in that: the channel value of described system default is 0, and the default value of described address is 0.
12. the method for the information exchange between realization portable type information switching unit as claimed in claim 10 is characterized in that: the outer broadcast packet that sends of described sending direction is outwards to send in mode regularly.
13. the method for the information exchange between realization portable type information switching unit as claimed in claim 10 is characterized in that, the recipient preserves the data of its reception after receiving that the end of transmit leg receives the order of data.
14. method as the information exchange between each described realization portable type information switching unit among the claim 10-13, it is characterized in that: recipient or transmit leg are after receiving the other side's package, all can carry out effectively capable verification to the data in its package of receiving, if check results is damaged for these data or is imperfect, then will not receive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510118339 CN1960370B (en) | 2005-11-01 | 2005-11-01 | Portable type information switching unit, and information switching method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510118339 CN1960370B (en) | 2005-11-01 | 2005-11-01 | Portable type information switching unit, and information switching method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1960370A true CN1960370A (en) | 2007-05-09 |
| CN1960370B CN1960370B (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510118339 Expired - Fee Related CN1960370B (en) | 2005-11-01 | 2005-11-01 | Portable type information switching unit, and information switching method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102077495A (en) * | 2008-04-30 | 2011-05-25 | 格马尔托股份有限公司 | Method of detecting TV off event on a mobile terminal equipment |
| CN102546068A (en) * | 2010-12-29 | 2012-07-04 | 盛乐信息技术（上海）有限公司 | Portable broadcasting method and device for personal information |
| CN106709836A (en) * | 2017-01-05 | 2017-05-24 | 沈阳东软医疗系统有限公司 | Configuration information exchange method, device and equipment |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001267969A (en) * | 2000-03-23 | 2001-09-28 | Toshiba Corp | Matched filter and digital signal receiver provided with the matched filter |
| US6985465B2 (en) * | 2000-07-07 | 2006-01-10 | Koninklijke Philips Electronics N.V. | Dynamic channel selection scheme for IEEE 802.11 WLANs |
| CN1395381A (en) * | 2001-07-10 | 2003-02-05 | 苏庚癸 | Radio electronic friend-selecting machine |
| CN2543282Y (en) * | 2002-03-28 | 2003-04-02 | 苏庚癸 | Wireless data exchange system |
| EP1620972B1 (en) * | 2003-05-08 | 2007-08-15 | Telefonaktiebolaget LM Ericsson (publ) | Method and device for providing point-to-multipoint services |
-
2005
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102077495A (en) * | 2008-04-30 | 2011-05-25 | 格马尔托股份有限公司 | Method of detecting TV off event on a mobile terminal equipment |
| CN102077495B (en) * | 2008-04-30 | 2014-05-28 | 格马尔托股份有限公司 | Method of detecting TV off event on a mobile terminal equipment |
| CN102546068A (en) * | 2010-12-29 | 2012-07-04 | 盛乐信息技术（上海）有限公司 | Portable broadcasting method and device for personal information |
| CN102546068B (en) * | 2010-12-29 | 2015-12-16 | 上海盛轩网络科技有限公司 | Personal information Portable broadcasting method and device |
| CN106709836A (en) * | 2017-01-05 | 2017-05-24 | 沈阳东软医疗系统有限公司 | Configuration information exchange method, device and equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1960370B (en) | 2013-03-27 |
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