CN101227640A - Device for switching mobile voice communication under coal mine and access method thereof - Google Patents
Device for switching mobile voice communication under coal mine and access method thereof Download PDFInfo
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Abstract
A switching device of mobile voice communication in the underground coal mine and a switch-in process relate to realize the voice switch-in in the underground coal mine, to finish the transfer calling to any underground voice paging device by an in-ground control center through a wireless base station, and simultaneously to finish the transfer calling to the in-ground control center by the underground voice paging device through the wireless base station. The switch-in process adopts a TCP/IP (transport control protocol/internet protocol) on the communication between the in-ground control center and the wireless base station, and adopts the wireless mobile communication based on the modulation of FSK on the communication between the wireless base station and the underground voice paging device. The device mainly comprises three parts, namely that an in-ground control center (2), a wireless base station (1) and an underground wireless paging device (3). The switch-in process comprises the contents of the three parts, namely a voice switch-in process of an in-ground control center, a voice switch-in process is that the paging device calls the in-ground control center and a pager voice communication non seam switching process.
Description
Technical field
The present invention relates to realize that voice insert under the coal mine, finish aboveground control centre and call out any down-hole voice paging equipment, can finish down-hole voice paging equipment simultaneously and call out aboveground control centre by the wireless base station transfer by the wireless base station transfer.This cut-in method is communicated by letter between aboveground control centre and wireless base station and is adopted TCP/IP (TCP) network communication protocol, and the wireless base station adopts the wireless mobile communications of modulating based on FSK with down-hole voice paging devices communicating.
Background technology
The national economy in recent years fast development, increased sharply to the great demand of coal, electric power equal energy source, be accompanied by the increase of colliery number and coal mining amount, the inherently safe problem in relevant colliery more and more shows especially, set up under-mine voice communication system and not only help when coal mining accident takes place, in time keeping communicating by letter, but also can when operation at ordinary times, realize personal scheduling with underground operators.
Because of the demand of the voice communication system of dense population areas such as the demand of under-mine voice communication and city has bigger difference, so existing more perfect wireless voice communication system, for example Personal Handyphone System, GSM, CDMA etc., owing to the cost height, utilance is low and do not possess reasons such as scheduling feature, can't under coal mine, generally adopt, and indiscriminately imitate the advantage that existing civilian mobile communcations system can not have been given play to Personal Handyphone System fully fully, wasted a large amount of system resource.
Given this, design a kind of just seeming at the cut-in method of colliery under-mine voice communication especially relatively meets realistic meaning.For the user, it can not only satisfy basic voice communication demand, and can also satisfy special colliery application demand, its autgmentability is strong, can increase new function easily according to user's subsequent need, the most important thing is the slump in demand of satisfying the colliery voice communication low voice communication system set up cost.
Summary of the invention
Technical problem: at the demand of colliery under-mine voice communication, we have designed the switching device shifter and the cut-in method of mobile speech communication under the coal mine of radio communication of the speech communication agreement that meets straight tunnel environment and FSK modulation.Wireless base station and down-hole voice paging devices communicating adopt the radio communication based on the FSK modulation, and it is realized simply, transmitted power is little, support the low speed mobile communication of down-hole paging equipment.The voice that this method is finished aboveground control centre and downhole wireless paging equipment insert, but have also taken into account the situation of later increase in demand simultaneously.
Technical scheme: the switching device shifter of mobile speech communication mainly comprises 3 parts under the coal mine of the present invention, that is: aboveground control centre, wireless base station and downhole wireless paging equipment; The wireless base station comprises message sink module, judge module, logic module, message transmission module and overtime module; Aboveground control centre comprises first message transmission module, the first message sink module, logic judgment module, condition judgment module, energy judge module and overtime module; The downhole wireless paging equipment comprises the second message sink module, judge module, logic judgment module, second message transmission module, overtime module and state machine; Wherein, the input of the output termination message sink module of first message transmission module, logic judgment module, condition judgment module and second message transmission module, the output termination first message sink module of message transmission module and the input of the second message sink module.
In the wireless base station, the output termination judge module of message sink module, the output of judge module connects logic module, overtime module respectively, and the output of logic module connects message transmission module and judge module respectively, the input of the overtime module of output termination of message transmission module.
In the aboveground control centre, the first message sink module, logic judgment module, condition judgment module, energy judge module, first message transmission module are connected in series in proper order, first message transmission module is connected with overtime module is two-way, the output of the first message sink module also is connected with the input of overtime module, and the output of logic judgment module, condition judgment module also is connected with the input of the first message sink module.In the downhole wireless paging equipment, the second message sink module, judge module, logic judgment module, second message transmission module are connected in series in proper order, the output of overtime module connects logic judgment module, state machine (3.6) respectively, and logic judgment module is connected with state machine is two-way.
The cut-in method of the switching device shifter of mobile speech communication comprises the content of three parts under the coal mine, that is: the voice cut-in method of aboveground control centre call page equipment, voice cut-in method and the beep-pager speech communication seamless handover method that paging equipment is called out aboveground control centre;
The voice cut-in method of aboveground control centre call page equipment is:
1) when certain downhole wireless paging equipment need be called out by aboveground control centre, wakes the whole network broadcasting up kind of message and be used to search this paging equipment, comprising the unique fixedly ID of the whole network of exhaling wireless paging apparatus number;
2) receive that the wireless base station that wakes kind of message up sends to the specific radio paging equipment with this message;
3) after specifying the downhole wireless paging equipment to receive to wake kind of message up, broadcasting comprised its ID number registration type message;
4) all can receive the wireless base station of this registration type message, and the energy that receives this signal is appended in this registration type message with the voice communication network port numbers that this wireless base station provides, and are forwarded to aboveground control centre;
5) aboveground control centre is after waiting for a period of time, may receive and specify paging equipment ID containing of one or more wireless base station, the registration type message of certain wireless base station ID and wireless energy signal, judge the energy size, that wireless base station of energy maximum is received in selection, if signal energy equates, that wireless base station of then selecting registration message to arrive at first, send ringer type message to this selected wireless base station, comprise the open network terminal slogan in aboveground control centre in the type message, aboveground control centre sends ring at this moment, be used to indicate this time calling to set up success, waiting for the paging equipment response;
6) to there not being selecteed wireless base station, aboveground control centre will send type of error message;
7) wireless base station of receiving ringer type message is transmitted to the downhole wireless paging equipment with this ALERTING message;
8) receive that the wireless base station of type of error message will close the foundation of this time voice communication;
9) the downhole wireless paging equipment will send ring after receiving ringer type message, be used to point out the aboveground control centre of downhole wireless paging equipment user to call out, voice inserted and finished smoothly this moment, had set up the communication link of aboveground control centre by some wireless base stations and downhole wireless paging equipment;
10) downhole wireless paging equipment user is when this time calling is answered in decision, confirm that with sending kind of message to selected wireless base station, stops ring, and opens voice data communication, send speech data to this wireless base station, and prepare to receive the speech data of this wireless base station;
11) receive the wireless base station of this affirmation kind of message, at first transmit and confirm that kind of message is to aboveground control centre, open the voice data communication link at two ends then, the speech data of wireless paging apparatus is transmitted to aboveground control centre under the received well, and the speech data of control centre is transmitted to the downhole wireless paging equipment on the received well;
12) after aboveground control centre receives and confirms kind of message, will stop ring, open the voice data communication link, send and receive speech data on the network;
13) after voice dialogue continues for some time,, then initiatively send and hang up kind of message if hang up the telephone in aboveground control centre;
14) dialogue is closed after receiving and hanging up kind of message in the wireless base station, and transmits the downhole wireless paging equipment;
15) the downhole wireless paging equipment is also closed dialogue after hanging up kind of message receiving;
16) after voice dialogue continues for some time,, then initiatively send and hang up kind of message if the downhole wireless paging equipment is hung up the telephone;
17) dialogue is closed after receiving and hanging up kind of message in the wireless base station, and transmits aboveground control centre;
18) aboveground control centre also closes dialogue after hanging up kind of message receiving;
The voice cut-in method that paging equipment is called out aboveground control centre is:
21) when certain wireless paging apparatus need be called out aboveground control centre, will comprise this wireless paging apparatus the whole network in wireless space broadcasting is a fixing type of call message of ID number;
22) all can receive the wireless base station of this type of call message, and the energy that receives this signal is appended in this type of call message with the voice communication network port numbers that this wireless base station provides, and are forwarded to the control centre;
23) aboveground control centre is after waiting for a period of time, may receive the ID of the same wireless paging apparatus of one or more wireless base station, the type of call message of the ID of certain wireless base station and wireless energy signal, judge the energy size, that wireless base station of energy maximum is received in selection, if signal energy equates, that wireless base station that then selective call message arrives at first, send ringer type message to this selected wireless base station, comprise the open network terminal slogan in aboveground control centre in the type message, the control centre sends ring at this moment, is used to indicate this time calling to set up success;
24) to there not being selecteed wireless base station, aboveground control centre will send type of error message;
25) wireless base station of receiving ringer type message is transmitted this ALERTING message and is fed down paging equipment;
26) receive that the wireless base station of type of error message will close the foundation of this time voice communication;
27) if the down-hole paging equipment will send ring after receiving ringer type message, be used to point out communication link to set up, waiting for that aboveground control centre replys by certain wireless base station;
28) when aboveground control centre determines to answer this time calling, confirm that with sending kind of message to selected wireless base station, stops ring, open the voice data communication link, speech data on transmission and the reception network;
29) receive the wireless base station of this affirmation kind of message, at first transmit and confirm that kind of message is to down-hole paging equipment 3, open the voice data communication link at two ends then, the speech data of wireless paging apparatus is transmitted to aboveground control centre under the received well, and the speech data of control centre is transmitted to downhole wireless paging equipment (3) on the received well;
210) after the downhole wireless paging equipment confirmation of receipt kind of message, stop ring, and open voice data communication, send speech data, and prepare to receive the speech data of this wireless base station to this wireless base station;
211) after voice dialogue continues for some time,, then initiatively send and hang up kind of message if hang up the telephone in aboveground control centre;
212) dialogue is closed after receiving and hanging up kind of message in the wireless base station, and transmits the downhole wireless paging equipment;
213) the downhole wireless paging equipment is also closed dialogue after hanging up kind of message receiving;
214) after voice dialogue continues for some time,, then initiatively send and hang up kind of message if the downhole wireless paging equipment is hung up the telephone;
215) dialogue is closed after receiving and hanging up kind of message in the wireless base station, and transmits aboveground control centre;
216) control centre also closes dialogue after hanging up kind of message receiving;
Beep-pager speech communication seamless handover method;
Beep-pager speech communication seamless handover method is: if the TRANSFER kind of message is received by aboveground control centre, then jump the station, judge the energy value that receives, if energy value is lower than threshold value, then still communicate,, then carry out energy and judge if energy value is higher than threshold value in present base station, select the base station of energy maximum to communicate, and send out the affirmation kind of message for the downhole wireless paging equipment.
Beneficial effect: adopt this method will change IP-based communication modes fully into by Circuit-switched speech communication mode, can make full use of the communication capacity of Industrial Ethernet under the coal mine like this, reach utilization of resources maximization, utilize IP can greatly reduce the cost of equipment as the bearer network of voice in the down-hole simultaneously.Voice cut-in method that the present invention is designed and seamless handover method can make the communication effect of mobile voice basic similar with circuit domain, and this method not only can be applied under the coal mine, are applied to the practicality equally of other environment.In addition, from the development trend of speech communication, the IPization of speech communication is a thing sooner or later, and this method provides the solution of becoming reconciled for IP-based voice mobile communication.
Description of drawings
Voice connecting system block diagram under Fig. 1 coal mine,
Fig. 2 calls out down-hole paging equipment voice cut-in method flow process in aboveground control centre,
Fig. 3 down-hole paging equipment is called out aboveground control centre voice cut-in method flow process,
The aboveground control centre of Fig. 4 audio call is jumped the station flow chart,
The audio call flow process figure of the aboveground control centre of Fig. 5.
Embodiment
Under the coal mine voice insert and the method for seamless switching as shown in Figure 1, the scheme of this method comprises three part compositions: control centre 2; Wireless base station 1; Downhole wireless paging equipment 3.Wherein:
1, the wireless base station 1
For the wireless base station, after message sink module 1.1 is received message, this message is sent to judge module 1.2, judge module 1.2 is responsible for checking the correctness of the message of receiving, give logic module 1.3 for the forwards that can receive, logic module 1.3 needs the message of transmission to message transmission module 1.4 according to the message output that receives, upgrade the judge module 1.2 next message that can receive simultaneously, after message transmission module 1.4 sends message, open overtime module 1.5 overtime clocking capabilitys, timing time is the time that next message expectation arrives, if receive proper messages by judge module 1.2 at the appointed time, judge module 1.2 will be closed the overtime clocking capability of overtime module 1.5 so, if what overtime module 1.5 was not received judge module 1.2 at the appointed time closes timing instruction, it will initiatively allow judge module 1.2 upgrade the next message that can receive so.
2, aboveground control centre 2
For this method, aboveground control centre 2 is cores.The initiation of system call and final finishing all and must finishing of dispatching by this module.For the control centre, if downhole wireless paging equipments 3 are called out by control centre 2, then (2 send messages related to calls, open timeout feature subsequently and are in the message sink state, wait for the answer of downhole wireless paging equipment 3 in the control centre.If message sink module 2.2 is received answer message, this message is sent to overtime module 2.6, judge whether overtime by overtime module 2.6.If overtime, then this message is sent to message transmission module 2.1, by 2.1 time-out errors of message transmission module.If it is not overtime, close overtime module 2.6, simultaneously this message is sent to logic judgment module 2.3, logic judgment module 2.3 judges whether the message of my needs according to the message that receives, give condition judgment module 2.4 if then send out message, otherwise send out the logic state error message and give transmission message module 2.1, continue simultaneously to wait for the reception message by message sink module 2.2.Condition judgment module 2.4 judges whether to meet works as precondition, gives energy judge module 2.5 if send out message, upgrades the concurrent message of current state simultaneously and gives message transmission module 2.1, enters next Messages-Waiting, opens overtime module 2.6 simultaneously.Otherwise clockwork spring spare error message is given and is sent message module 2.1, continues simultaneously to wait for reception message by message sink module 2.2.
If downhole wireless paging equipment 3 call scheduling centers 2, then message sink module 2.2 receives information and sending and gives logic judgment module 2.3, judges whether to meet current state, if meet, then sends message to condition judgment module 2.4.Otherwise send the logic state error message to sending message module 2.1, continue simultaneously to wait for reception message by message sink module 2.2.Condition judgment module 2.4 judges whether to meet works as precondition, gives the energy judge module if send out message, upgrades the concurrent message of current state simultaneously and gives message transmission module 2.1, enters next Messages-Waiting, opens overtime module 2.6 simultaneously.Otherwise clockwork spring spare error message is given and is sent message module 2.1, continues simultaneously to wait for reception message by message sink module 2.2.
3, the down-hole paging equipment 3
For down-hole paging equipment 3, after message sink module 3.1 is received message, this message is sent to judge module 3.2, judge module 3.2 is responsible for checking the correctness of the message of receiving, give logic judgment module 3.3 for the forwards that can receive, logic judgment module 3.3 is according to the state of the state machine 3.6 of message that receives and paging equipment, the message that output needs to send is to message transmission module 3.4, upgrade the logic judgment module 3.3 next message that can receive simultaneously, after message transmission module 3.4 sends message, open overtime module (3.5 overtime clocking capabilitys, timing time is the time that next message expectation arrives, if receive proper messages by logic judgment module 3.3 at the appointed time, logic judgment module 3.3 will be closed the overtime clocking capability of overtime module 3.5 so, simultaneously update mode machine 3.6; If what overtime module 3.5 was not received logic judgment module 3.3 at the appointed time closes timing instruction, so overtime module 3.5 is with Reset Status machine 3.6.
4, under the coal mine based on the speech communication seamless handover method of ICP/IP protocol
This method need be finished jointly by aboveground control centre 2, wireless base station 1 and downhole wireless paging equipment 3, voice switch under the following situation and take place, downhole wireless paging equipment 3 is in the signal cover of wireless base station A when setting up dialogue, in the wireless communication process, the downhole wireless paging equipment is gradually away from the signal cover of wireless base station A, enter the signal cover of wireless base station B, the wireless base station that finish voice communication this moment will switch to wireless base station B from A.This method mainly compares with the empirical value that has calculated according to receiving wireless energy signal, makes correspondingly operations such as whether switching, determine switching then.
Below in conjunction with accompanying drawing, this cut-in method three part flow processs are elaborated.
1, control centre's call page equipment voice cut-in method:
As accompanying drawing 2, Fig. 4 and shown in Figure 5, complete going up relates to 3 partial contents to following calling procedure, comprises control centre 2, wireless base station 1 and wireless paging apparatus 3.
(1) when control centre 2 needs to call out certain wireless paging apparatus 3, the whole network is broadcasted the INVITE kind of message be used to search this paging equipment, comprising the unique fixedly ID of the whole network of exhaling wireless paging apparatus 3 number;
(2) specific radio paging equipment 3 is sent to this message in the wireless base station 1 of receiving the INVITE kind of message;
(3) after specific radio paging equipment 3 is received the INVITE kind of message, broadcasting comprised its ID number REGISTER kind of message;
(4) all can receive the wireless base station 1 of this REGISTER kind of message, and the energy that receives this signal is appended in this REGISTER kind of message with the voice communication network port numbers that this wireless base station 1 provides, and are forwarded to control centre 2;
(5) control centre 2 is after waiting for a period of time, may receive and specify paging equipment ID containing of one or more wireless base station 1, the REGISTER kind of message of certain wireless base station ID and wireless energy signal, judge the energy size, that wireless base station 1 of energy maximum is received in selection, if signal energy equates, that wireless base station 1 of then selecting REGISTER message to arrive at first, send the RING kind of message to this selected wireless base station 1, comprise the network terminal slogan that control centre 2 opens in the type message, the control centre sends ring 2 this moments, be used to indicate this time calling to set up success, waiting for the paging equipment response;
(6) to there not being selecteed wireless base station 1, control centre 2 will send the ERR kind of message;
(7) wireless paging apparatus 3 is given with this RING forwards in the wireless base station 1 of receiving the RING kind of message;
(8) receive that the wireless base station 1 of ERR kind of message will close the foundation of this time voice communication;
(9) wireless paging apparatus 3 will send ring after receiving the RING kind of message, be used to point out wireless paging apparatus 3 user control centres 2 calling out, voice inserted and finished smoothly this moment, had set up control centre 2 by the communication link of some wireless base stations 1 with wireless paging apparatus 3;
(10) wireless paging apparatus 3 users are when this time calling is answered in decision, with sending the OK kind of message, stop ring, and open voice data communication to selected wireless base station 1, send speech data to this wireless base station 1, and prepare to receive the speech data of this wireless base station 1;
(11) receive the wireless base station 1 of this OK kind of message, at first transmit the OK kind of message and give control centre 2, open the voice data communication link at two ends then, the speech data that receives wireless paging apparatus 3 is transmitted to control centre 2, and the speech data at receiving scheduling center 2 is transmitted to wireless paging apparatus 3;
(12) after control centre 2 receives the OK kind of message, will stop ring, open the voice data communication link, send and receive speech data on the network;
(13) after voice dialogue continues for some time,, then initiatively send the BYE kind of message if hang up the telephone in control centre 2;
(14) dialogue is closed after receiving the BYE kind of message in wireless base station 1, and transmits wireless paging apparatus 3;
(15) wireless paging apparatus 3 is also closed dialogue after receiving the BYE kind of message;
(16) after voice dialogue continues for some time,, then initiatively send the BYE kind of message if wireless paging apparatus 3 is hung up the telephone;
(17) dialogue is closed after receiving the BYE kind of message in wireless base station 1, and transmits control centre 2;
(18) control centre 2 also closes dialogue after receiving the BYE kind of message.
(19) if the TRANSFER kind of message is received by control centre 2, then jump the station.Judge the energy value that receives,, then still communicate in present base station if energy value is lower than threshold value.If energy value is higher than threshold value, then carry out energy and judge, select the base station of energy maximum to communicate, and give 3 OK kind of message of down-hole paging equipment.(as shown in Figure 4)
2, downhole wireless paging equipment 3 is called out aboveground control centre 2 voice cut-in methods:
As accompanying drawing 3 and shown in Figure 4, one complete relates to 3 partial contents to last calling procedure down, comprises control centre 2, wireless base station 1 and wireless paging apparatus 2.
(1) when certain wireless paging apparatus 3 needs call scheduling centers 1, will comprise this wireless paging apparatus 3 the whole networks in wireless space broadcasting is a fixing CALL kind of message of ID number;
(2) all can receive the wireless base station 1 of this CALL kind of message, and the energy that receives this signal is appended in this CALL kind of message with the voice communication network port numbers that this wireless base station 1 provides, and are forwarded to control centre 2;
(3) control centre 2 is after waiting for a period of time, may receive the ID of the same wireless paging apparatus 3 of one or more wireless base station 1, the CALL kind of message of the ID of certain wireless base station 1 and wireless energy signal, judge the energy size, that wireless base station 1 of energy maximum is received in selection, if signal energy equates, that wireless base station 1 of then selecting CALL message to arrive at first, send the RING kind of message to this selected wireless base station, comprise the network terminal slogan that control centre 2 opens in the type message, the control centre sends ring 2 this moments, is used to indicate this time calling to set up success;
(4) to there not being selecteed wireless base station 1, control centre 2 will send the ERR kind of message;
(5) wireless base station 1 of receiving the RING kind of message feeds down paging equipment 3 with this RING forwards;
(6) receive that the wireless base station 1 of ERR kind of message will close the foundation of this time voice communication;
(7) if down-hole paging equipment 3 will send ring after receiving the RING kind of message, be used to point out communication link to set up, waiting for that control centre 2 replys by certain wireless base station 1;
(8) when this time calling is answered in control centre's 2 decisions,, stop ring, open the voice data communication link, send and receive speech data on the network sending the OK kind of message to selected wireless base station 1;
(9) receive the wireless base station 1 of this OK kind of message, at first transmit the OK kind of message and give down-hole paging equipment 3, open the voice data communication link at two ends then, the speech data of paging equipment 3 is transmitted to control centre 2 under the received well, and the speech data at receiving scheduling center 2 is transmitted to down-hole paging equipment 3;
(10) after down-hole paging equipment 3 receives the OK kind of message, stop ring, and open voice data communication, send speech data, and prepare to receive the speech data of this wireless base station 1 to this wireless base station 1;
(11) after voice dialogue continues for some time,, then initiatively send the BYE kind of message if hang up the telephone in control centre 2;
(12) dialogue is closed after receiving the BYE kind of message in wireless base station 1, and transmits down-hole paging equipment 3;
(13) down-hole paging equipment 3 is also closed dialogue after receiving the BYE kind of message;
(14) after voice dialogue continues for some time,, then initiatively send the BYE kind of message if down-hole paging equipment 3 is hung up the telephone;
(15) dialogue is closed after receiving the BYE kind of message in wireless base station 1, and transmits control centre 2;
(16) control centre 2 also closes dialogue after receiving the BYE kind of message.
(17) if the TRANSFER kind of message is received by control centre 2, then jump the station.Judge the energy value that receives,, then still communicate in present base station if energy value is lower than threshold value.If energy value is higher than threshold value, then carry out energy and judge, select the base station of energy maximum to communicate, and send out the OK kind of message to paging equipment.(as shown in Figure 4)
3, for guaranteeing the message timeout mechanism that access process safety withdraws from:
Being defined into each message in above-mentioned 1 and 2 all has timeout mechanism, when in the time of delay of regulation, does not receive that then control centre, wireless base station and down-hole paging equipment withdraw from dialogue this time, the session establishment failure to subsequent message.The time-out time of wherein waiting for the OK kind of message is q second, waits for that the time-out time of INVITE kind of message is w second, waits for that the time-out time of RING kind of message is z second.
4, based on the speech communication seamless switching mechanism of ICP/IP protocol:
The idiographic flow that switch the base station as shown in Figure 4, at first determine 3 energy empirical values, a guarantees the minimum energy value of voice communication quality, b determines the energy value of switching, c initiates the energy value of handoff request, their size meets a＜b＜c, and the three differ can not be very little, need according to concrete wireless channel environment and the decision of wireless base station coverage.
When the down-hole paging equipment when wireless base station A moves to wireless base station B, the energy that its finds the wireless speech signal receive is less than c and initiated handoff request message apart from last time and crossed t during second, then broadcast handoff request message, continue to return the voice communication state then and keep communicating by letter with wireless base station A; To have a plurality of wireless base stations to receive handoff request message (comprising wireless base station A) this moment, and they are forwarded to the control centre after the energy value of the handoff request message that receives is appended to this message.
If the energy value that receives has greater than b, then the wireless base station of a handoff request energy greater than the energy value maximum of b will be selected by the control centre, and send for this base station to switch and confirm kind of message.If this message is issued wireless base station B, then the control centre cuts off the voice data communication with original wireless base station A, directly switch to and the communicating by letter of wireless base station B, wireless base station B receive switch confirm kind of message after, open corresponding duplex voice communication link, for transmitting speech data in two ends at once.If this message is issued wireless base station A, then the control centre continue to keep and the communicating by letter of wireless base station A, and wireless base station A does not carry out any operation after receiving and switching the affirmation kind of message.
If the energy value that receives is not greater than b, then any operation is not done by the control centre, continues to keep and the communicating by letter of wireless base station A.
Claims (5)
1. the switching device shifter of mobile speech communication under the coal mine is characterized in that this device mainly comprises 3 parts, that is: aboveground control centre (2), wireless base station (1) and downhole wireless paging equipment (3); Wireless base station (1) comprises message sink module (1.1), judge module (1.2), logic module (1.3), message transmission module (1.4) and overtime module (1.5); Control centre (2) comprises first message transmission module (2.1), the first message sink module (2.2), logic judgment module (2.3), condition judgment module (2.4), energy judge module (2.5) and overtime module (2.6); Wireless paging apparatus (3) comprises the second message sink module (3.1), judge module (3.2), logic judgment module (3.3), second message transmission module (3.4), overtime module (3.5) and state machine (3.6); Wherein, the input of the output termination message sink module (1.1) of first message transmission module (2.1), logic judgment module (2.3), condition judgment module (2.4) and second message transmission module (3.4), the output termination first message sink module (2.2) of message transmission module (1.4) and the input of the second message sink module (3.1).
2. the switching device shifter of mobile speech communication under the coal mine according to claim 1, it is characterized in that in the wireless base station (1), the output termination judge module (1.2) of message sink module (1.1), the output of judge module (1.2) connects logic module (1.3), overtime module (1.5) respectively, the output of logic module (1.3) connects message transmission module (1.4) and judge module (1.2) respectively, the input of the overtime module of output termination (1.5) of message transmission module (1.4).
3. the switching device shifter of mobile speech communication under the coal mine according to claim 1, it is characterized in that in the aboveground control centre (2), the first message sink module (2.2), logic judgment module (2.3), condition judgment module (2.4), energy judge module (2.5), first message transmission module (2.1) order is connected in series, first message transmission module (2.1) and two-way connection of overtime module (2.6), the output of the first message sink module (2.2) also is connected with the input of overtime module (2.6), logic judgment module (2.3), the output of condition judgment module (2.4) also is connected with the input of the first message sink module (2.2).
4. the switching device shifter of mobile speech communication under the coal mine according to claim 1, it is characterized in that in the downhole wireless paging equipment (3), the second message sink module (3.1), judge module (3.2), logic judgment module (3.3), second message transmission module (3.4) order are connected in series, the output of overtime module (3.5) connects logic judgment module (3.3), state machine (3.6) respectively, logic judgment module (3.3) and two-way connection of state machine (3.6).
5. the cut-in method of the switching device shifter of mobile speech communication under the coal mine as claimed in claim 1, it is characterized in that this cut-in method comprises the content of three parts, that is: the voice cut-in method of aboveground control centre call page equipment, voice cut-in method and the beep-pager speech communication seamless handover method that paging equipment is called out aboveground control centre;
The voice cut-in method of aboveground control centre call page equipment is:
1) when aboveground control centre (2) need to call out certain downhole wireless paging equipment (3), wakes the whole network broadcasting up kind of message and be used to search this paging equipment, comprising the unique fixedly ID of the whole network of exhaling wireless paging apparatus 3 number;
2) receive that the wireless base station (1) that wakes kind of message up sends to specific radio paging equipment (3) with this message;
3) after specifying downhole wireless paging equipment (3) to receive to wake kind of message up, broadcasting comprised its ID number registration type message;
4) all can receive the wireless base station (1) of this registration type message, and the energy that receives this signal is appended in this registration type message with the voice communication network port numbers that this wireless base station (1) provides, and are forwarded to aboveground control centre (2);
5) aboveground control centre (2) are after waiting for a period of time, may receive and specify paging equipment ID containing of one or more wireless base station (1), the registration type message of certain wireless base station ID and wireless energy signal, judge the energy size, that wireless base station (1) of energy maximum is received in selection, if signal energy equates, that wireless base station (1) of then selecting registration message to arrive at first, send ringer type message to this selected wireless base station (1), comprise the open network terminal slogan in aboveground control centre (2) in the type message, aboveground control centre (2) sends ring this moment, be used to indicate this time calling to set up success, waiting for the paging equipment response;
6) to there not being selecteed wireless base station (1), aboveground control centre (2) will send type of error message;
7) wireless base station (1) of receiving ringer type message is transmitted to downhole wireless paging equipment (3) with this ALERTING message;
8) receive that the wireless base station (1) of type of error message will close the foundation of this time voice communication;
9) downhole wireless paging equipment (3) will send ring after receiving ringer type message, be used to point out the aboveground control centre of downhole wireless paging equipment (3) user (2) to call out, voice inserted and finished smoothly this moment, had set up aboveground control centre (2) by the communication link of some wireless base stations (1) with downhole wireless paging equipment (3);
10) downhole wireless paging equipment (3) user is when this time calling is answered in decision, confirm that with sending kind of message is to selected wireless base station (1), stop ring, and open voice data communication, send speech data to this wireless base station (1), and prepare to receive the speech data of this wireless base station (1);
11) receive the wireless base station (1) of this affirmation kind of message, at first transmit and confirm that kind of message is to aboveground control centre (2), open the voice data communication link at two ends then, the speech data of wireless paging apparatus under the received well (3) is transmitted to aboveground control centre (2), and the speech data of control centre (2) is transmitted to downhole wireless paging equipment (3) on the received well;
12) after aboveground control centre (2) receive and confirm kind of message, will stop ring, open the voice data communication link, send and receive speech data on the network;
13) after voice dialogue continues for some time,, then initiatively send and hang up kind of message if hang up the telephone in aboveground control centre (2);
14) wireless base station (1) closes dialogue after receiving and hanging up kind of message, and transmits downhole wireless paging equipment (3);
15) downhole wireless paging equipment (3) is also closed dialogue after hanging up kind of message receiving;
16) after voice dialogue continues for some time,, then initiatively send and hang up kind of message if downhole wireless paging equipment (3) is hung up the telephone;
17) wireless base station (1) closes dialogue after receiving and hanging up kind of message, and transmits control centre (2);
18) aboveground control centre (2) also close dialogue after hanging up kind of message receiving;
The voice cut-in method that paging equipment is called out aboveground control centre is:
21) when certain wireless paging apparatus (3) need to be called out aboveground control centres (2), will comprise this wireless paging apparatus (3) the whole network in wireless space broadcasting is a fixing type of call message of ID number;
22) all can receive the wireless base station (1) of this type of call message, and the energy that receives this signal is appended in this type of call message with the voice communication network port numbers that this wireless base station (1) provides, and are forwarded to control centre (1);
23) aboveground control centre (2) are after waiting for a period of time, may receive the ID of the same wireless paging apparatus (3) of one or more wireless base station (1), the ID of certain wireless base station (1) and the type of call message of wireless energy signal, judge the energy size, that wireless base station (1) of energy maximum is received in selection, if signal energy equates, that wireless base station (1) that then selective call message arrives at first, send ringer type message to this selected wireless base station, comprise the open network terminal slogan in aboveground control centre (2) in the type message, control centre (1) sends ring this moment, is used to indicate this time calling to set up success;
24) to there not being selecteed wireless base station (1), aboveground control centre (2) will send type of error message;
25) wireless base station (1) of receiving ringer type message is transmitted this ALERTING message and is fed down paging equipment (3);
26) receive that the wireless base station (1) of type of error message will close the foundation of this time voice communication;
27) if down-hole paging equipment (3) will send ring after receiving ringer type message, be used for prompting and set up by the communication link of certain wireless base station (1), waiting for that aboveground control centre (2) replys;
28) when aboveground control centre (2) determine to answer this time calling, confirm that with sending kind of message to selected wireless base station (1), stops ring, open the voice data communication link, speech data on transmission and the reception network;
29) receive the wireless base station (1) of this affirmation kind of message, at first transmit and confirm that kind of message is to down-hole paging equipment (3), open the voice data communication link at two ends then, the speech data of wireless paging apparatus under the received well (3) is transmitted to aboveground control centre (2), and the speech data of control centre (2) is transmitted to downhole wireless paging equipment (3) on the received well;
210) after downhole wireless paging equipment (3) the confirmation of receipt kind of message, stop ring, and open voice data communication, send speech data, and prepare to receive the speech data of this wireless base station (1) to this wireless base station (1);
211) after voice dialogue continues for some time,, then initiatively send and hang up kind of message if hang up the telephone in aboveground control centre (2);
212) wireless base station (1) closes dialogue after receiving and hanging up kind of message, and transmits downhole wireless paging equipment (3);
213) downhole wireless paging equipment (3) is also closed dialogue after hanging up kind of message receiving;
214) after voice dialogue continues for some time,, then initiatively send and hang up kind of message if downhole wireless paging equipment (3) is hung up the telephone;
215) wireless base station (1) closes dialogue after receiving and hanging up kind of message, and transmits aboveground control centre (2);
216) control centre (2) also close dialogue after hanging up kind of message receiving;
Beep-pager speech communication seamless handover method;
Beep-pager speech communication seamless handover method is: aboveground control centre (2) are if receive the TRANSFER kind of message, then jump the station, judge the energy value that receives, if energy value is lower than threshold value, then still communicate,, then carry out energy and judge if energy value is higher than threshold value in present base station, select the base station of energy maximum to communicate, and send out for downhole wireless paging equipment (3) and confirm kind of message.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101917272A CN101227640A (en) | 2007-12-14 | 2007-12-14 | Device for switching mobile voice communication under coal mine and access method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101917272A CN101227640A (en) | 2007-12-14 | 2007-12-14 | Device for switching mobile voice communication under coal mine and access method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101227640A true CN101227640A (en) | 2008-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101917272A Pending CN101227640A (en) | 2007-12-14 | 2007-12-14 | Device for switching mobile voice communication under coal mine and access method thereof |
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| Country | Link |
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| CN (1) | CN101227640A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895328A (en) * | 2010-07-14 | 2010-11-24 | 肖汉华 | Intelligent wireless communication system for coal mine |
| CN102427450A (en) * | 2011-11-14 | 2012-04-25 | 郑州赛金电气有限公司 | Mine emergency communication system |
| CN103475847A (en) * | 2013-09-10 | 2013-12-25 | 昆山奥德鲁自动化技术有限公司 | Link device for oil field underground video call |
| CN110430329A (en) * | 2019-07-26 | 2019-11-08 | 深圳市潮流网络技术有限公司 | Method of calling and device, computer readable storage medium |
-
2007
- 2007-12-14 CN CNA2007101917272A patent/CN101227640A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895328A (en) * | 2010-07-14 | 2010-11-24 | 肖汉华 | Intelligent wireless communication system for coal mine |
| CN102427450A (en) * | 2011-11-14 | 2012-04-25 | 郑州赛金电气有限公司 | Mine emergency communication system |
| CN102427450B (en) * | 2011-11-14 | 2014-12-10 | 郑州赛金电气有限公司 | Mine emergency communication system |
| CN103475847A (en) * | 2013-09-10 | 2013-12-25 | 昆山奥德鲁自动化技术有限公司 | Link device for oil field underground video call |
| CN110430329A (en) * | 2019-07-26 | 2019-11-08 | 深圳市潮流网络技术有限公司 | Method of calling and device, computer readable storage medium |
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