CN101106737B - Base station, terminal, wireless communication system and ID query and voice communication combination method - Google Patents
Base station, terminal, wireless communication system and ID query and voice communication combination method Download PDFInfo
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- CN101106737B CN101106737B CN2007101198575A CN200710119857A CN101106737B CN 101106737 B CN101106737 B CN 101106737B CN 2007101198575 A CN2007101198575 A CN 2007101198575A CN 200710119857 A CN200710119857 A CN 200710119857A CN 101106737 B CN101106737 B CN 101106737B
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Abstract
The invention relates to a wireless communication base station, including a first wireless communication module, a base station control module and a network interface. The invention also relates to a wireless communication mobile terminal, including a second wireless communication module and a terminal control module. The invention further relates to a wireless communication system, including thebase station and mobile terminal. The base station, the mobile terminal together with the system provide a device to conduct running fix and speech communication in a small range, with simple laying work and low cost. The invention further relates to a method combining the mobile terminal ID inquiry and speech communication in the wireless communication system, with specific steps: determine whether the wireless communication modules of both the terminal and the base station are provided with modules working on speech communication modes; if yes, then execute the speech communication process of the terminal through the base station; otherwise the wireless communication module of the base station works on ID inquiry mode, and execute ID inquiry process between the base station and the terminal; the method provides a wireless communication method with an accurate locating ability, which can combine with speech communication.
Description
Technical field
The method that the present invention relates to a kind of running fix and carry out the voice communication combination, the method that portable terminal ID inquiry combines with voice communication in particularly a kind of wireless communication system.
Background technology
The development of advancing by leaps and bounds along with present mobile communication technology, the domestic mobile phone popularity rate of China is more and more higher, based on the small-sized communication system of wireless mobile technology also just in vigorous growth.For example: the meal ordering system in dining room, need to carry out voice communication between the staff, if can this set up a wireless communication system among a small circle, will make things convenient for staff's communication greatly, and improve efficiency of service in the dining room; The savng system of hospital, such as the high risk patient, mental patient etc. if can also be equipped with hand-held wireless communication facility to them, can send distress call and accurate location at any time, get twice the result with half the effort for dealing with some accidents so.
Safety monitoring system under the present for another example mine also is very necessary.Along with development in science and technology, coal mine safety monitoring equipment is brought in constant renewal in and is regenerated, and the coefficient of safety of Coal Production improves constantly, but the still frequently generation of pernicious mine accident, mine staff life security is subjected to serious threat.Accident is subjected to influences such as the tunnel caves in again after taking place easily, is difficult in time find stranded mine staff; Because the mine staff is mobile big in the down-hole, concrete personnel positions and quantity are difficult in time determine simultaneously.In case have an accident, salvaging is difficult in time carry out, thereby incurs loss through delay salvaging, has greatly increased mine staff's danger coefficient.Therefore wireless communication system is installed in the down-hole also is very important.
At present, develop based on voice communication and the terminal positioning combining wireless system of GSM and CDMA, but the positioning accuracy of this wireless communication system is lower, needs to build complicated base station, lay and the cost of operation very high.
Summary of the invention
The invention provides the method that portable terminal ID inquiry combines with voice communication in a kind of wireless communication system, make that the location of portable terminal is more accurate, and energy is simple and combination is carried out in voice communication.
In order to realize purpose of the present invention, portable terminal ID inquires about the method that combines with voice communication in a kind of wireless communication system of some embodiments of the present invention, and step is:
Judge in the wireless communication module of portable terminal and radio communication base station whether the module that works in voice communication mode is all arranged;
If have, then carry out the voice communication course of portable terminal by radio communication base station;
If do not have, then described wireless communication module works in the ID query pattern, carries out the ID query script between described radio communication base station and portable terminal;
Described ID query script comprises following concrete steps:
The unremitting transmission broadcast message of the first public frequency wireless module in first wireless communication module of base station;
The broadcast message that the described first public frequency wireless module sends is sought, received to the second public frequency wireless module frequency hopping in portable terminal second wireless communication module;
Do not receive the broadcast message that any base station sends if receive two all after dates in frequency hopping, described portable terminal will enter resting state, wait for next time and be waken up;
If receive the broadcast message that a certain base station sends in frequency hopping receives two cycles, the described second public frequency wireless module can lock, note this frequency, carries out command reception always;
According to the corresponding relation of described frequency and ID inquiry wireless module intermediate-frequeney point, portable terminal jumps to this base station on should the ID queried channel of portable terminal, and the ID transmission wireless module of portable terminal is waken up, and enters accepting state;
The ID that portable terminal receives the base station inquires about the Query Information that wireless module is sent, and returns the response message of oneself;
The base station sends confirmation to portable terminal, and described portable terminal enters resting state, waits for next time and is waken up;
Final step base station in the described ID query script also can send dynamic frequency division instruction to portable terminal; Described portable terminal carries out corresponding frequency point setting according to instruction; Send confirmation and enter resting state to the base station after setting is finished, wait for next time and be waken up.
By above technical scheme as can be known, the radio communication base station that some embodiments of the present invention provide is responsible near all portable terminal ID this base station of monitoring; Be responsible for by transmitting voice messaging between first wireless communication module and the portable terminal; Be responsible for by transfers voice information between network and the central control computer and various management information; The communication mobile terminal of other embodiment of the present invention is that ID number by sending oneself realizes the positioning function of system, and can carries out voice communication; The wireless communication system of other embodiment of the present invention makes this system accuracy height, lays simply, and operation cost is low; The method that portable terminal ID inquiry combines with voice communication in the wireless communication system of some embodiment more of the present invention makes that the location of portable terminal is more accurate, and energy is simple and combination is carried out in voice communication.
Also in conjunction with the accompanying drawings the present invention is described in further detail below by specific embodiment.
Description of drawings
Fig. 1 is embodiment 1 structure chart of radio communication base station of the present invention;
Fig. 2 is embodiment 2 structure charts of radio communication base station of the present invention;
Fig. 3 is embodiment 1 structure chart of communication mobile terminal of the present invention;
Fig. 4 is embodiment 2 structure charts of communication mobile terminal of the present invention;
Method embodiment 1 flow chart that Fig. 5 combines with voice communication for portable terminal ID inquiry in the wireless communication system of the present invention;
Embodiment
For the lower problem of positioning accuracy that exists in existing portable terminal location and the voice communication combining wireless communication system, some embodiments of the present invention adopt the wireless communication module transmitting power reduce the base station, thereby reduce the coverage of each base station, be about 30～50m, to improve locating accuracy.
For the base station construction complexity that exists in existing portable terminal location and the voice communication combining wireless communication system, lay and the high problem of operation cost, some embodiments of the present invention have adopted uses common cheaply wireless radio frequency modules (for example CC2400 of CHIPCON) to realize radio communication function.Because the parasitic radiation of common wireless radio frequency modules is bigger, therefore, the interval between channel can appropriateness be widened to reduce the phase mutual interference between each frequency.
The embodiment 1 of radio communication base station
This radio communication base station comprises as shown in Figure 1: be used for and portable terminal between carry out first wireless communication module 1 of radio communication; Be used to carry out the base stations control module 2 that information data is handled; Be used for the network interface 3 that is connected with central control computer; Wherein first wireless communication module 1 adopts Serial Peripheral Interface (SPI) to be connected with base stations control module 2, and base stations control module 2 is connected by network interface 3 with central control computer; First wireless communication module 1 further comprises the first public frequency wireless module 11, reception that is used to instruct and transmission; ID inquires about wireless module 12, is used for mobile terminal receive ID; The first voice communication wireless module 13 is used for carrying out voice communication with portable terminal.
The function of this base station mainly contains following 3 aspects: be responsible near all portable terminal ID this base station of monitoring; Be responsible for by transmitting voice messaging between first wireless module and the portable terminal; Be responsible for by network and central control computer (hereinafter to be referred as transfers voice information and various management information PC).
The embodiment 2 of radio communication base station
Fig. 2 is the structure chart of this embodiment base station, and as can be seen from the figure, base stations control module 2 parts have adopted the SAM7X256 chip based on the ARM7 kernel; First wireless communication module 1 is made up of 5 wireless communication modules; All communication functions between the SAM7X256 chip and the first wireless communication module l all adopt Serial Peripheral Interface (SPI) (Serial Peripheral Interface, hereinafter to be referred as: SPI) realize.Because the SAM7X256 chip has two SPI interfaces, each interface can connect 4 SPI slave units, so a slice SAM7X256 can connect 8 wireless communication modules (Fig. 1 be example with 5 wireless communication modules) at most.The network function of SAM7X256 chip is realized by the ethernet controller in its sheet; Its bottom link is realized by network interface DM9161+RJ45.
5 wireless communication modules of base station are allocated as follows: 1 as the first public frequency wireless module 11, is used for the commands for controlling of the system that realizes; Remain 4 and when not having the demand of voice communication, all inquire about wireless module 12 as ID; When if the demand of voice communication is arranged, can there be 2 ID inquiry wireless modules 12 to change the first voice communication wireless module 13 at most and (, then when not having the demand of voice communication, all inquire about wireless module for 7 as an ID if connect 8 wireless communication modules; When if the demand of voice communication is arranged, can have 3 ID enquiry modules to change the first voice communication wireless module at most), the module as the ID inquiry wireless module 12 and the first voice communication wireless module 13 is an ID inquiry/voice communication wireless module 123 simultaneously.
The main effect of SAM7X256 chip is finished by five functional modules of its inside, is respectively: the first base station functions module is used to adjust frequency and the frequency number that ID inquiry wireless communication module is inquired about; The second base station functions module is used for receiving and sending messages the cycle of each first wireless communication module synchronously; The 3rd base station functions module, the mode of operation that is used to dispatch each first wireless communication module, promptly adjusting each first wireless communication module is the ID inquiry wireless module or the first voice communication wireless module; The 4th base station functions module is used for, audio data stream being compressed and decompress(ion) during as the first voice communication wireless module at first wireless communication module; The 5th base station functions module is used for carrying out network data communication between realization and PC and other radio communication base stations.
The embodiment 1 of communication mobile terminal
This communication mobile terminal comprises as shown in Figure 3: be used for and the base station between carry out second wireless communication module 4 of radio communication; Be used to carry out the terminal control module 5 that information data is handled; Wherein second wireless communication module 4 adopts Serial Peripheral Interface (SPI) to be connected with terminal control module 5; Second wireless communication module 4 further comprises: the second public frequency wireless module 41 that is connected with described terminal control module 5, reception that is used to instruct and transmission; The ID that is connected with described terminal control module 5 sends wireless module 42, is used for portable terminal ID is sent to the base station; The second voice communication wireless module 43 that is connected with described terminal control module is used for carrying out voice communication with the base station.
The function that terminal realizes in this wireless communication system mainly contains following 2: one is the positioning function that by sending oneself ID number realizes system, and another is to carry out voice communication.
The embodiment 2 of communication mobile terminal
The structure chart of communication mobile terminal as shown in Figure 4, second wireless communication module 4 comprises two wireless communication modules, one is operated in common signal channel, as the second public frequency wireless module 41, reception that is used to instruct and transmission, the search of public frequency etc.Another is operated in ID queried channel or voice channel, does not inquire about wireless module 42 as the 2nd ID when having the voice communication demand; When if the demand of voice communication is arranged, become the second voice communication wireless module 43, as long as voice communication termination not, the base station just can generate the id information in the terminal of voice communication automatically; When ID sends wireless module and the second voice communication wireless module and integrates, be ID transmission/voice communication wireless module 423.
As shown in Figure 4, second wireless communication module 4 of this portable terminal only comprises two wireless communication modules, and the second public frequency wireless module 41 and ID transmission/voice communication wireless module 423 if wireless communication module is too much, can make the power consumption of radio communication increase.
The main effect of the terminal control module 5 in this portable terminal is finished by five functional modules of its inside, is respectively: the first termination function module is used to finish the setting up procedure to the portable terminal frequency; The second termination function module is used for receiving and sending messages the cycle of each second wireless communication module synchronously; The 3rd termination function module, the mode of operation that is used to dispatch each second wireless communication module, promptly adjusting ID transmission/voice communication wireless module is that ID sends wireless module, still the second voice communication wireless module; The 4th termination function module is used for, audio data stream being compressed and decompress(ion) during as the second voice communication wireless module at ID transmission/voice communication wireless module; The 5th termination function module is used to receive and resolve the keying input information of portable terminal.
The embodiment of wireless communication system
Comprise base station and portable terminal in this wireless communication system.The base station comprises again: be used for and portable terminal between carry out first wireless communication module 1 of radio communication; Be used to carry out the base stations control module 2 that information data is handled; Be used for the network interface 3 that is connected with central control computer; Wherein first wireless communication module 1 adopts Serial Peripheral Interface (SPI) to be connected with base stations control module 2, and base stations control module 2 is connected by network interface 3 with central control computer; First wireless communication module 1 further comprises the first public frequency wireless module 11, reception that is used to instruct and transmission; ID inquires about wireless module 12, is used for mobile terminal receive ID; The first voice communication wireless module 13 is used for carrying out voice communication with portable terminal.
Terminal comprises: be used for and the base station between carry out second wireless communication module 4 of radio communication; Be used to carry out the terminal control module 5 that information data is handled; Wherein second wireless communication module 4 adopts Serial Peripheral Interface (SPI) to be connected with terminal control module 5; Second wireless communication module 4 further comprises: the second public frequency wireless module 41 that is connected with described terminal control module 5, reception that is used to instruct and transmission; The ID that is connected with described terminal control module 5 sends wireless module 42, is used for portable terminal ID is sent to the base station; The second voice communication wireless module 43 that is connected with described terminal control module is used for carrying out voice communication with the base station.
Shown in the system configuration schematic diagram was promptly combined by the foregoing description base station and portable terminal, communication was carried out in base station and portable terminal radio communication mold interblock separately.
This system requires relatively stricter to the power consumption of terminal, thereby the emission of terminal will have automatic gain control (AGC) function, promptly from the base station more nearby, can weaken transmitting power automatically.
The method embodiment 1 that portable terminal ID inquiry combines with voice communication in the wireless communication system
Some embodiments of the present invention are except having embodied positioning accuracy height of the present invention in system, system builds characteristic of simple, ID inquiry and voice communication are attached to communication on the same module also having adopted on the method, the key step of it combines portable terminal ID inquiry in the wireless communication system with voice communication method as shown in Figure 5, for:
The wireless communication module of step 103, portable terminal works in the ID query pattern, carries out the ID query script between radio communication base station and portable terminal.
As long as the voice communication demand is arranged in this system, ID transmission/voice communication the wireless module of portable terminal just becomes second voice communications module, the ID inquiry wireless module of the corresponding frequency of base station also becomes first voice communications module, as long as voice communication is termination not, the base station just can generate the Termination ID information in voice communication automatically.
The following examples will be introduced the ID query script in detail.
The method embodiment 2 that portable terminal ID inquiry combines with voice communication in the wireless communication system
Described by the foregoing description, wherein the ID query script is: for the convenience of mobile terminal seeking network, the first common frequency point module of base station can ceaselessly send broadcast message, and the every dormancy of portable terminal was waken up after 1 second; ID in the portable terminal sends wireless module and is set as park mode, and the second public frequency wireless module begins frequency hopping and seeks, receives near the public frequency of the base station it (because the frequency between adjacent three base stations can the phase mutual interference, so the frequency translation scope of the public frequency in the embodiments of the invention is 3 different public frequencies); The duration that each frequency hopping receives is the transmitting-receiving cycle of a wireless signal of base station, if frequency hopping receives 2 cycles, i.e. in the transmitting-receiving cycle of 6 of the base station wireless signals, portable terminal does not all search suitable network, then continues to enter resting state; If find suitable public frequency, then second of the portable terminal public frequency wireless module then can lock this frequency, carries out command reception always, and notes this frequency; ID sent wireless module and was waken up this moment, and according to the corresponding relation of public frequency and ID inquiry wireless module intermediate-frequeney point, portable terminal can jump to this base station on should the ID queried channel of portable terminal, and enters accepting state always; After if the ID of portable terminal transmission wireless module receives the Query Information of base station to oneself, wait for that the portable terminal transmission that the base station sends allows to instruct; Switch to sending mode then and wait for a window time, return the response message of oneself; Then, portable terminal is waited for the affirmation information that send the base station at common signal channel, and then portable terminal directly enters resting state, waits for next time and is waken up back repetition said process.Its step can be summarized as shown in Figure 6:
The unremitting transmission broadcast message of the first public frequency wireless module in step 201, base station first wireless communication module;
The broadcast message that the described first public frequency wireless module sends is sought, received to the second public frequency wireless module frequency hopping in step 202, portable terminal second wireless communication module;
The ID that step 207, portable terminal receive the base station inquires about the Query Information that wireless module is sent, and returns the response message of oneself;
Wherein it should be noted that, for the base station, if the frequency conversion of a certain ID inquiry wireless module is the required frequency of voice communication wireless module, ID inquiry frequency in the then former module changes in other ID inquiry wireless modules, the frequency number that some ID inquiries this moment wireless module need be inquired about surpasses 1, and then it adopts the mode of frequent frequency hopping to carry out the ID inquiry, just after certain frequency has been inquired about an ID, frequency hopping is carried out an ID inquiry to another frequency at once, continues frequency hopping then.
The method embodiment 3 that portable terminal ID inquiry combines with voice communication in the wireless communication system
Final step base station in the above-mentioned ID query script also can send dynamic frequency division instruction to portable terminal; Portable terminal carries out corresponding frequency point setting according to instruction; Send confirmation and enter resting state to the base station after setting is finished, wait for next time and be waken up.Described setting up procedure is dynamic dividing method.
The above-mentioned ID query script of having simplified, adopted static frequency division, be the difference of portable terminal according to id number, be divided into 7 groups, 1 frequency of every group of corresponding ID queried channel, in fact from whole system, consider the phase mutual interference of adjacent base station frequency, every group of actual respectively corresponding 3 different frequent points of id number in adjacent 3 base stations.Though this static frequency division can improve the speed of ID inquiry to a certain extent, ID number of ought run into some frequency is on the high side, and during the ID of other frequencies number situation on the low side, still has the restriction of ID inquiry velocity.In order to optimize the process of ID inquiry, need send the dynamic assignment that wireless module carries out frequency to the ID that ID inquires about wireless module and portable terminal.Its base station is on the basis of static allocation frequency, and the algorithm of introducing the dynamic assignment frequency is as follows:
When certain ID is searched by ID inquiry wireless module in the base station (saying it is before this base station does not find this ID as yet on the stricti jurise), the frequency that is adopted is a static frequency of distributing to this portable terminal, but after the base station receives the ID confirmation that the static frequency of used for mobile terminal returns, can start following algorithm:
When if this base station is inquired about the ID of portable terminal with present frequency point allocation mode, uneven situation has appearred, promptly inquire about more than ID number 3 when above that the maximum frequency of ID number need be inquired about than inquiry ID number minimum frequency, in the control module of base station, take following steps:
The first step if in the base station, has the situation of wireless communication module as the first voice communication wireless module, then considers to make each frequency in the ID inquiry average by adjusting frequency number and the frequency that each ID inquiry wireless module inquires about;
Second step, if in the base station, do not have wireless communication module can not make the frequency mean time,, make each frequency in the ID inquiry average then by being carried out the adjustment of frequency by the portable terminal of inquiry to current as the first voice communication wireless module or above-mentioned processing.
If can make the portable terminal id number of each frequency inquiry average by adjusting frequency, then the base station by public frequency when portable terminal sends the ID confirmation, send the instruction of conversion frequency, after portable terminal receives this instruction, it dynamically can be adjusted the frequency sign is made as effectively, simultaneously new frequency is write in the relevant variable of portable terminal, return the frequency adjustment by public frequency then and finish information, portable terminal enters resting state again.
After portable terminal is waken up next time, begin to inquire about the first public frequency wireless module of base station from the public frequency that is write down, if the public frequency that inquires is consistent with the public frequency that write down the base station, and the dynamic adjustment frequency of this portable terminal is masked as effectively, then its ID process of transmitting adopts the new frequency that writes down in the portable terminal, thereby finished dynamic frequency point setting function, and ID afterwards still supports to continue the function of dynamic assignment frequency in polling cycle; If the public frequency that write down public frequency that inquires and base station is inconsistent, illustrate that portable terminal has entered new base station, it is invalid then the dynamic adjustment frequency sign of this portable terminal to be changed to, and its ID process of transmitting recovers to adopt the frequency of static allocation; If inquiry illustrates then that less than public frequency this ID has shifted out this wireless communication system, it is invalid also the dynamic adjustment frequency sign of this portable terminal can be changed to, and its ID process of transmitting recovers to adopt the frequency of static allocation.
Adopt this dynamic dividing method, each ID enquiry module of having realized the base station is when carrying out the ID inquiry, this unanimity of ID base that each frequency is inquired about, one of them characteristic are exactly no any corresponding relation between the id number of portable terminal and the employee number, are completely randoms.Said method is that the speed of portable terminal ID inquiry becomes and more accelerates.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (2)
1. the method that portable terminal ID inquiry combines with voice communication in the wireless communication system is characterized in that step is:
Judge in the wireless communication module of portable terminal and radio communication base station whether the module that works in voice communication mode is all arranged;
If have, then carry out the voice communication course of portable terminal by radio communication base station;
If do not have, then described wireless communication module works in the ID query pattern, carries out the ID query script between described radio communication base station and portable terminal;
Described ID query script comprises following concrete steps:
The unremitting transmission broadcast message of the first public frequency wireless module in first wireless communication module of base station;
The broadcast message that the described first public frequency wireless module sends is sought, received to the second public frequency wireless module frequency hopping in portable terminal second wireless communication module;
Do not receive the broadcast message that any base station sends if receive two all after dates in frequency hopping, described portable terminal will enter resting state, wait for next time and be waken up;
If receive the broadcast message that a certain base station sends in frequency hopping receives two cycles, the described second public frequency wireless module can lock, note this frequency, carries out command reception always;
According to the corresponding relation of described frequency and ID inquiry wireless module intermediate-frequeney point, portable terminal jumps to this base station on should the ID queried channel of portable terminal, and the ID transmission wireless module of portable terminal is waken up, and enters accepting state;
The ID that portable terminal receives the base station inquires about the Query Information that wireless module is sent, and returns the response message of oneself;
The base station sends confirmation to portable terminal, and described portable terminal enters resting state, waits for next time and is waken up;
Final step base station in the described ID query script also can send dynamic frequency division instruction to portable terminal; Described portable terminal carries out corresponding frequency point setting according to instruction; Send confirmation and enter resting state to the base station after setting is finished, wait for next time and be waken up.
2. the method that portable terminal ID inquiry combines with voice communication in the wireless communication system according to claim 1, it is characterized in that: when carrying out ID inquiry with the present frequency point allocation mode in base station and uneven situation occurred, the process of described dynamic frequency division mainly comprises:
If in the base station, the situation of wireless communication module as the first voice communication wireless module arranged, then consider to make each frequency in the ID inquiry average by adjusting frequency number and the frequency that each ID inquiry wireless module inquires about;
If in the base station, there is not wireless communication module can not make the frequency mean time as the first voice communication wireless module or above-mentioned processing, then by being carried out the adjustment of frequency by the portable terminal of inquiry, make each frequency in the ID inquiry average to current.
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| CN2007101198575A CN101106737B (en) | 2007-08-01 | 2007-08-01 | Base station, terminal, wireless communication system and ID query and voice communication combination method |
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| CN2007101198575A CN101106737B (en) | 2007-08-01 | 2007-08-01 | Base station, terminal, wireless communication system and ID query and voice communication combination method |
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| CN101106737B true CN101106737B (en) | 2010-10-06 |
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