CN103873131A - Wireless meter reading communication relaying method - Google Patents
Wireless meter reading communication relaying method Download PDFInfo
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- CN103873131A CN103873131A CN201410140238.4A CN201410140238A CN103873131A CN 103873131 A CN103873131 A CN 103873131A CN 201410140238 A CN201410140238 A CN 201410140238A CN 103873131 A CN103873131 A CN 103873131A
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Abstract
The invention relates to the technical field of wireless communication, in particular to a wireless meter reading communication relaying method. According to the method, the problem that collision and interference are caused by repeated signal transmission when a relay node cooperates with the communication between a meter reading terminal and a target meter in the prior art is solved. The wireless meter reading communication relaying method is characterized in that the relay node receives the meter reading information of the meter reading terminal and transmits the information to a next relay node or the target meter after delaying a certain time T1, and after the meter reading terminal does not receive order response information after sending orders to the relay node many times, the meter reading terminal directly sends the information to a next relay node of the meter after delaying a certain time T2. Through the arrangement of the communication slot time, two identical communication tasks with the target meter do not exist in the same slot time, the collision and the interference of the information in the air can be avoided effectively, communication quality is guaranteed, and communication efficiency is improved.
Description
Technical field
The present invention relates to wireless communication technology field, specifically refer to a kind of radio meter register communication repeating method.
Background technology
Along with the development of wireless communication technology, utilize via node forwarding data technology to have application widely in the field such as gas meter reading, remote monitoring.Between wireless meter tool or between the equipment such as external wireless repeater by adopting wireless relay to check meter, between table tool or between relay equipment, wake the neighbouring device line command transmission of going forward side by side up by relay communication, until destination address, thereby communication distance is significantly promoted.As, meter reading terminal A wants to obtain the data message of remote table tool C, due to distant, between A and C, the cost of direct communication is higher, and reliability is also lower, in this case can be by means of being positioned at A, table tool B between C is as communication repeating, by A, the information that carries C address is sent to B, B carries out being transmitted to C after information identification, thereby realize communicating by letter between A and C, and in this process, B will carry out command response in time to A, if A does not receive the command response of B node within a certain period of time, A thinks that B relaying is failed, A can seek next via node and complete the task of forwarding its data, or directly attempt communicating with C, and this communication mode can two-wayly carry out, and has effectively solved distance between Wireless Telecom Equipment, the problem of difficult communication.
But in above-mentioned relay communication, there is A, while carrying out radio communication between B, B successfully receives the order of A and has done to reply, but because wireless transmission is vulnerable to various interference, may cause A not receive replying of B, if at this moment A judges that B node does not receive orders, and A will carry out the order communication of maximum 3 times with B, if A does not still receive replying of B node, A judges the failure of B forwarding data, A will skip a grade directly and C communication, but because B node in fact correctly receives orders, B node also can with the communication of C node, to cause like this wireless signal collision mutually aloft, disturb, affect the correct transmission of data, and can reduce communication efficiency.
Summary of the invention
The present invention is intended to overcome signal in the above-mentioned communication link of checking meter existing in prior art and aloft mutually collides, disturbs, affect the correct transmission of data, and reduce the deficiencies such as communication efficiency, a kind of new radio meter register relay communication method is provided, can effectively solve described problem.
The invention provides following technical scheme:
A kind of radio meter register communication repeating method, comprises meter reading terminal, via node, table tool, and described meter reading terminal, by the collaborative forwarding of described via node, obtains the data message of described table tool; Its communication process comprises the following steps:
Step S1: described meter reading terminal sends and checks meter message to described via node;
Step S2: described via node receives described amr message, the line command of going forward side by side is replied, and starts T1 timer simultaneously, and after the T1 time, described via node forwards described amr message to next via node or described table tool;
Step S3: described meter reading terminal does not receive the response message of the above via node, start T2 timer, within the T2 time, described meter reading terminal detects in communication link whether have relay communication, if existed, described meter reading terminal judges that described via node correctly receives the amr message of described meter reading terminal;
Step S4: in step S3, if in the T2 time, described meter reading terminal detects and do not have relay communication in described communication link, after the T2 time finishes, described meter reading terminal sends to next via node or described table tool the message of checking meter.
As preferably, described meter reading terminal, before carrying out above-mentioned steps S1, first sends request to described via node, and described via node is waken up from resting state, and described via node enters wait state; Can avoid so described meter reading terminal directly send the task of checking meter to described via node after, because described via node is in resting state or busy condition, does not carry out the preparation of collaborative work and lose time, reduce communication efficiency.
As preferably, in step S1 described above, described meter reading terminal can carry out to described via node the request of the task of checking meter of three times.
As preferably, the above T1 time, to be described meter reading terminal sent described amr message required time and described via node to described via node sends three times of command response information required time sum to described meter reading terminal, be that described via node waits for that described meter reading terminal can be after described via node carries out the time of request of the task of checking meter of maximum three times, again to next via node or described table tool forwarding information, can effectively avoid so described via node in the time forwarding amr message with next via node or described table tool, described meter reading terminal is but replied because not receiving orders and is continued maximum three times and send the order of checking meter, cause wireless signal to collide aloft, phase mutual interference.
As preferably, the T2 time described above, to be meter reading terminal sent described amr message required time and described via node to described via node sends five times of command response information required time sum to described meter reading terminal; Described meter reading terminal directly sends amr message to next via node or described table tool, forward described amr message to next via node or described table tool with via node described in above-mentioned steps S2, life period is at least the time difference of T3=T2-T1 between the two, can effectively avoid like this that information is collided, phase mutual interference aloft.
As preferably, the above table tool comprises gas meter, flow meter, water meter and electric energy meter.
As preferably, via node described above is the various table tools such as gas meter, flow meter or electric energy meter, and these table tools can be used as via node after being provided with link trunking function, has worked in coordination with the remote-wireless task of checking meter.
Compared with prior art, the invention has the beneficial effects as follows: meter reading terminal sends amr message to via node, via node successfully receives information, and forward described amr message to object table tool, send command response information to described meter reading terminal simultaneously, but because wireless signal is easily interfered and destroys, cause described meter reading terminal not receive the command response information of described via node, take for not success of trunking traffic, now this meter reading terminal continues to send amr message to via node, and now may just forward amr message by via node, cause like this communication collision and interference, when this meter reading terminal is not repeatedly all received response message with via node communication, now this meter reading terminal is abandoned and the communicating by letter of described via node, with next via node or the direct communication of described table tool, now may just forward amr message by via node, so also will cause communication collision and interference, Given this, the present invention receive at described via node postpone after the amr message of meter reading terminal certain time interval T 1 again forwarding information to next via node or described table tool, described meter reading terminal does not all receive orders after response message after to via node repeatedly sending order, postpones certain time interval T 2 and directly sends information to next via node or described table tool again.By this time delay of T1, can ensure that via node forwards amr message to next via node or described table tool after meter reading terminal sends the order of repeatedly checking meter again; By this time delay of T2, can ensure that via node forwards in the process of amr message to next via node or described table tool carrying out, whether described meter reading terminal has and determines after enough time detecting link communication state directly and next via node or the communication of described table tool again.By communication time slot is set, make in same time slot like this, do not deposit two kinds with the same communication task of object table tool, can effectively avoid information collide and disturb aloft, in ensureing communication quality, improved communication efficiency.
Brief description of the drawings:
Fig. 1 is communication sequential chart of the present invention.
Embodiment
Below in conjunction with test example and embodiment, the present invention is described in further detail.But this should be interpreted as to the scope of the above-mentioned theme of the present invention only limits to following embodiment, all technology realizing based on content of the present invention all belong to scope of the present invention.
Embodiment: a kind of radio meter register communication repeating method, as shown in Figure 1, comprise meter reading terminal A, via node B, table tool C, described meter reading terminal A wants the data message of inquiry apart from its table tool C far away, if Direct Communication between A and C, the quality of communication and efficiency can be because distant and be affected, therefore the invention provides a kind of radio meter register relay communication method, by described meter reading terminal A by the collaborative forwarding of described via node B, obtain the data message of described table tool C; Between them, communication process comprises the following steps, as Fig. 1 sequential chart shows:
1, before described meter reading terminal A sends amr message to described via node B, first send request to described relaying joint B point, described via node B is waken up from resting state, described via node B enters wait state; After can avoiding so task that described meter reading terminal A directly sends amr message to described via node B, because described via node B is in resting state or busy condition, does not carry out the preparation of collaborative work and lose time, reduce communication efficiency.
2, waking up of process step 1, described via node B is waken up, and sends request and replys simultaneously, represents that to described A it is in idle condition, can forward operation.
3, described meter reading terminal A sends amr message to described via node B, and the laggard line command of amr message that described via node B receives described meter reading terminal A is replied, and starts T1 timer simultaneously.
4, after described meter reading terminal A transmission amr message, do not receive the command response information of described via node B, A is maximum sends three described amr messages to described via node B.
5, described via node B forwards described amr message through backward described table tool C of T1 time; Wherein remember that it is Ts that described meter reading terminal A sends described amr message required time to described via node B, it is Ta that described via node B sends command response information required time to described meter reading terminal A, make Ts and Ta sum, i.e. T1=3*(Ts+Ta that the described T1 time equals three times); Namely described via node B waits for that described meter reading terminal A can be after described via node B carries out three orders of checking meter of maximum, forward described amr message to described table tool C again, can effectively avoid so described via node B in the time forwarding amr message with described table tool C, described meter reading terminal A but replys because not receiving orders and continues maximum three times and send the order of checking meter, and causes that wireless signal collides, phase mutual interference aloft.
6, described meter reading terminal A does not receive the command response information of described via node B in the maximum order of checking meter for three times, start T2 timer, and described meter reading terminal A starts to detect the communication that whether has amr message in the communication link between itself and B, C simultaneously, if existed, described meter reading terminal A thinks that described via node B receives order success and carries out forwarding work, abandon communicating by letter directly and between C, meter reading terminal A enters holding state, and the passback of the amr message of wait list tool C.
7, in step 6, if in the T2 time, described meter reading terminal A does not detect the communication of amr message in described communication link, it is all failed with three relay communications of described via node B that described A thinks, after the T2 time finishes, described meter reading terminal A abandons and the communicating by letter of described B, and directly carries out communication with described table tool C.
8, described table tool C is according to above-mentioned steps, by amr message by relaying or directly return to described meter reading terminal A.
Wherein, making the described T2 time is Ts and Ta sum, the i.e. T2=5*(Ts+Ta of five times), the difference of T2 and T1 is T3, the Ts that T3 is twice and Ta sum, i.e. T3=2*(Ts+Ta).Described like this meter reading terminal A directly sends amr message to next via node or described table tool C, forward described amr message to next via node or described table tool C with the via node B described in above-mentioned steps 5, the time difference that at least life period is T3 between the two, if described via node B orders for the first time just to send at A and receives successfully, this time difference will be further large than T3, can effectively avoid information to collide aloft like this, phase mutual interference, simultaneously within this time difference, described meter reading terminal A has enough time to detect B, in communication link between C, whether there is the communication of amr message.
As preferred embodiment, the table tool C described in embodiment 1 comprises gas meter, flow meter, electric energy meter.Present domestic gas equal energy source industry, abandons the mode of operation of manually registering one's residence and checking meter substantially, generally adopts radio meter register pattern, and the present invention can effectively solve the signal collision that the relay forwarding sequential of centralized automatic meter-reading causes and disturb.
As preferred embodiment, the above table tool comprises gas meter, flow meter, water meter, electric energy meter.
As preferred embodiment, via node described above is the various table tools such as gas meter, flow meter or electric energy meter, and these tables after tools are provided with link trunking function, can be used as via node, has worked in coordination with the remote-wireless task of checking meter.
Claims (7)
1. a radio meter register communication repeating method, comprises meter reading terminal, via node, table tool, and described via node, according to the request of described meter reading terminal, forwards amr message to described table tool, it is characterized in that, comprises the following steps:
Step S1: described meter reading terminal sends and checks meter message to described via node;
Step S2: described via node receives described amr message, the line command of going forward side by side is replied, and starts T1 timer simultaneously, and through the T1 time, described via node forwards described information to next via node or described table tool;
Step S3: described meter reading terminal does not receive the response message of described via node, start T2 timer, within the T2 time, described meter reading terminal detects in communication link whether have relay communication, if existed, described meter reading terminal judges that described via node correctly receives the amr message of described meter reading terminal;
Step S4: in step S3, if in the T2 time, described meter reading terminal detects and do not have relay communication in described communication link, after the T2 time finishes, described meter reading terminal sends to next via node or described table tool the message of checking meter.
2. a kind of radio meter register communication repeating method according to claim 1, is characterized in that, carries out before described step S1 further comprising the steps of: described meter reading terminal sends request and wakes described via node up, and described via node enters wait state.
3. a kind of radio meter register communication repeating method according to claim 1, is characterized in that, in described step S1, described meter reading terminal is to 3 described amr messages of the maximum transmission of described via node.
4. a kind of radio meter register communication repeating method according to claim 1, it is characterized in that, the described T1 time, to be described meter reading terminal sent described amr message required time and described via node to described via node sends three times of response message required time sum to described meter reading terminal.
5. a kind of radio meter register communication repeating method according to claim 1, it is characterized in that, the described T2 time, to be described meter reading terminal sent described amr message required time and described via node to described via node sends five times of response message required time sum to described meter reading terminal.
6. a kind of radio meter register communication repeating method according to claim 1, is characterized in that, described table tool comprises gas meter, flow meter, water meter, electric energy meter.
7. a kind of radio meter register communication repeating method according to claim 1, is characterized in that, described via node is table tool.
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| CN201410140238.4A CN103873131B (en) | 2014-04-09 | 2014-04-09 | A kind of radio meter register communication relay method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109194379A (en) * | 2018-08-29 | 2019-01-11 | 大连金盛义电子科技有限公司 | A kind of wireless repeater, relay system and wireless relay communication method |
| CN110234140A (en) * | 2019-06-17 | 2019-09-13 | 腾讯科技（深圳）有限公司 | A kind of communication means, device, entity and storage medium |
| WO2020015580A1 (en) * | 2017-11-28 | 2020-01-23 | 阿里巴巴集团控股有限公司 | Communication between terminal and base station, network access method for terminal, and device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040042828A (en) * | 2002-11-12 | 2004-05-20 | 주식회사 블루맥스 커뮤니케이션 | Automatic meter reading system using satellite communication network |
| CN102208128A (en) * | 2011-05-03 | 2011-10-05 | 大连安盛燃气开发有限公司 | Meter reading method for wireless gas meter reading system |
| CN102892193B (en) * | 2012-09-20 | 2016-03-30 | 华为技术有限公司 | Data transmission method and equipment |
| CN103049992A (en) * | 2012-12-25 | 2013-04-17 | 上海桑锐电子科技有限公司 | Broadcast meter-reading method for wireless intelligent meter-reading system |
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2014
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020015580A1 (en) * | 2017-11-28 | 2020-01-23 | 阿里巴巴集团控股有限公司 | Communication between terminal and base station, network access method for terminal, and device |
| CN109194379A (en) * | 2018-08-29 | 2019-01-11 | 大连金盛义电子科技有限公司 | A kind of wireless repeater, relay system and wireless relay communication method |
| CN109194379B (en) * | 2018-08-29 | 2020-12-25 | 大连金盛义电子科技有限公司 | Wireless relay system and wireless relay communication method |
| CN110234140A (en) * | 2019-06-17 | 2019-09-13 | 腾讯科技（深圳）有限公司 | A kind of communication means, device, entity and storage medium |
| WO2020253531A1 (en) * | 2019-06-17 | 2020-12-24 | 腾讯科技（深圳）有限公司 | Communication method and apparatus, entity and storage medium |
| CN110234140B (en) * | 2019-06-17 | 2022-07-08 | 腾讯科技（深圳）有限公司 | Communication method, device, entity and storage medium |
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Address after: No. 536, Section 1, airport 1st Road, Shuangliu Southwest Airport, Chengdu, Sichuan 610211 Patentee after: Chengdu Qianjia Technology Co.,Ltd. Address before: No. 536, Section 1, airport 1st Road, Shuangliu Southwest Airport, Chengdu, Sichuan 610211 Patentee before: Chengdu Qianjia Technology Co.,Ltd. |