CN202334920U - Wireless ad hoc network M-Bus system - Google Patents
Wireless ad hoc network M-Bus system Download PDFInfo
- Publication number
- CN202334920U CN202334920U CN2011204569653U CN201120456965U CN202334920U CN 202334920 U CN202334920 U CN 202334920U CN 2011204569653 U CN2011204569653 U CN 2011204569653U CN 201120456965 U CN201120456965 U CN 201120456965U CN 202334920 U CN202334920 U CN 202334920U
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- networking
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- nodal points
- data
- microprocessor
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Abstract
The utility model discloses a wireless ad hoc network M-Bus system which comprises a convergence point and a wireless communication network consisting of a plurality of nodal points. The system has the benefits that wireless ad hoc network communication is adopted, networking starts from the convergence point, nodal points near to the convergence point are added to networking firstly, then nodal points near to nodal points added to networking firstly are added to networking, by parity of reasoning; besides, communication channels of all the nodal points which undertake relaying function are uniformly distributed by the convergence point, so that the nodal points do not influence one another and can simultaneously send data, and the timeliness of broadcasted data is improved; and marks indicating whether subsequent data exists are added to the convergence point and the nodal points when the convergence point and the nodal points send data packets, and are recognized when the data packets are received, and if subsequent data exists, buffering is performed, so that the requirement that the time interval between data bytes of one frame in the M-Bus can not exceed 3.5 character is satisfied.
Description
Technical field
The utility model relates to a kind of wireless self-networking M-Bus system.
Background technology
M-Bus is a kind of special in consuming the data/address bus designed system of measuring instrument sum counter transmission information, at building and the collection of industrial energy consumption data many-sided application is arranged.The node and the convergent point of existing M-Bus system are point-to-point transparent transmission modes; When between node and the convergent point during in long Distance Transmission data; May occur communicating by letter because of power consumption the is excessive situation of smooth or communication delay has delayed transfer of data, has destroyed the retardance and the integrality of data.
The utility model content
The purpose of the utility model promptly is to overcome the deficiency of present technology, and a kind of wireless self-networking M-Bus is provided system, adopts the communication of wireless self-networking; Networking is initiated by convergent point, takes the lead in adding from its near node, adds then from the near node of these nodes; By that analogy, and each communication channel of bearing the node of relay function distributed by the convergent point unification, lets it not disturb mutually; Make them to send simultaneously; Thereby improve the real-time of broadcast data, convergent point and node add the sign whether subsequent data is arranged when sending packet, then carry out distinguishing mark when receiving packet; If follow-up data is arranged then cushion, satisfy the requirement that can not surpass 3.5 characters blanking time between the data byte of same frame in the M-Bus.
The utility model is realized through following technical scheme: a kind of wireless self-networking M-Bus system; Comprise the cordless communication network that a convergent point and plurality of nodes are formed, described convergent point comprises radio circuit and microprocessor, and radio circuit is connected on the microprocessor; Radio circuit connects external network through antenna; Microprocessor connects outside administrative center through data communication module, and described node comprises radio circuit and microprocessor, and radio circuit is connected on the microprocessor; Radio circuit connects external network through antenna, and microprocessor connects external instrument through data communication module.
The communication standard of RS232, RS485 or TTL that described data communication module adopts.
Described administrative center connects convergent point through radio communication.
Described administrative center is through serial ports and convergent point wired connection.
Described external instrument is through serial ports and node wired connection.
The beneficial effect of the utility model is: adopt the communication of wireless self-networking, networking is initiated by convergent point, takes the lead in adding from its near node; Add then from the near node of these nodes; By that analogy, and each communication channel of bearing the node of relay function distributed by the convergent point unification, lets it not disturb mutually; Make them to send simultaneously; Thereby improve the real-time of broadcast data, convergent point and node add the sign whether subsequent data is arranged when sending packet, then carry out distinguishing mark when receiving packet; If follow-up data is arranged then cushion, satisfy the requirement that can not surpass 3.5 characters blanking time between the data byte of same frame in the M-Bus.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of convergent point;
Fig. 3 is the structural representation of node.
Embodiment
Below in conjunction with embodiment the utility model is done further to specify, but the structure of the utility model is not limited only to following examples:
Like Fig. 1, Fig. 2, shown in Figure 3, a kind of wireless self-networking M-Bus system comprises the cordless communication network that a convergent point and plurality of nodes are formed; Described convergent point comprises radio circuit and microprocessor; Radio circuit is connected on the microprocessor, and radio circuit connects external network through antenna, and microprocessor connects outside administrative center through data communication module; Described node comprises radio circuit and microprocessor; Radio circuit is connected on the microprocessor, and radio circuit connects external network through antenna, and microprocessor connects external instrument through data communication module.
The communication standard of RS232, RS485 or TTL that described data communication module adopts.
Described administrative center connects convergent point through radio communication.
Described administrative center is through serial ports and convergent point wired connection.
Described external instrument is through serial ports and node wired connection.
The course of work of the utility model is following:
(1) administrative center sends networking commands to convergent point, and after the microprocessor of convergent point received order, the control radio circuit was regularly launched beacon frame from antenna and begun networking;
(2) radio circuit of node is through the antenna scanning channel; Just attempt adding network after receiving beacon frame; Node also regularly begins to send beacon frame after adding network, and near the node that does not add network making is able to add, and the rest may be inferred; Add network earlier like node 1, node 2, node 3; Node 1, node 2, node 3 beacon frame of redispatching then adds network again with near node 1, node 2, the node 3 node such as node 4, node 6, node 7, and near the nodes node 4, node 6, the node 7 add network after receiving the beacon frame that node 4, node 6, node 7 send again then;
(3) after convergent point received the broadcast data that administrative center sends from data communication module, microprocessor promptly added frame preamble and check information to the broadcast data processing of packing, control then radio circuit from the antenna transmission broadcast data near node;
(4) after node receives broadcast data through radio circuit; Microprocessor carries out decompression processing to data, promptly removes frame preamble and check information, sends to external instrument through data communication module again; Node is also born near broadcast data that relay function is about to receive other nodes sending to through radio circuit; Each communication channel of bearing the node of relay function is distributed by the convergent point unification, lets it not disturb mutually, makes them to send simultaneously;
(5) after node received the image data that external instrument sends through data communication module, microprocessor promptly added frame preamble and check information to the image data processing of packing; Again through radio circuit through the antenna transmission image data, if this node near convergent point, image data can be directly to and reaches convergent point; If this node keeps clear of convergent point; Then be relayed to convergent point through other nodes, send earlier after receiving image data like node 9, node 6 is transmitted after receiving the data of node 9 immediately; Node 2 data that receive node 6 are transmitted again then, receive the data that node 2 sends by convergent point at last;
(6) after convergent point received image data through radio circuit, microprocessor carried out decompression processing to image data, promptly removes frame preamble and check information, sends to administrative center through data communication module again.
Convergent point of the utility model and node add the sign whether subsequent data is arranged when sending packet; Convergent point and node then carry out distinguishing mark when receiving packet; If follow-up data is arranged then cushion, satisfy the requirement that can not surpass 3.5 characters blanking time between the data byte of same frame in the M-Bus.
Claims (5)
1. wireless self-networking M-Bus system; It is characterized in that: comprise the cordless communication network that a convergent point and plurality of nodes are formed, described convergent point comprises radio circuit and microprocessor, and radio circuit is connected on the microprocessor; Radio circuit connects external network through antenna; Microprocessor connects outside administrative center through data communication module, and described node comprises radio circuit and microprocessor, and radio circuit is connected on the microprocessor; Radio circuit connects external network through antenna, and microprocessor connects external instrument through data communication module.
2. a kind of wireless self-networking M-Bus according to claim 1 system is characterized in that: the communication standard of RS232, RS485 or TTL that described data communication module adopts.
3. a kind of wireless self-networking M-Bus according to claim 1 system, it is characterized in that: described administrative center connects convergent point through radio communication.
4. a kind of wireless self-networking M-Bus according to claim 1 system, it is characterized in that: described administrative center is through serial ports and convergent point wired connection.
5. a kind of wireless self-networking M-Bus according to claim 1 system, it is characterized in that: described external instrument is through serial ports and node wired connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204569653U CN202334920U (en) | 2011-11-17 | 2011-11-17 | Wireless ad hoc network M-Bus system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204569653U CN202334920U (en) | 2011-11-17 | 2011-11-17 | Wireless ad hoc network M-Bus system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202334920U true CN202334920U (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204569653U Expired - Fee Related CN202334920U (en) | 2011-11-17 | 2011-11-17 | Wireless ad hoc network M-Bus system |
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| CN (1) | CN202334920U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103258414A (en) * | 2013-04-18 | 2013-08-21 | 成都技高科技有限公司 | Wireless water meter reading system with good stability |
| CN105262815A (en) * | 2015-10-22 | 2016-01-20 | 珠海市杰理科技有限公司 | Wireless transmission method and system based on radio frequency |
-
2011
- 2011-11-17 CN CN2011204569653U patent/CN202334920U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103258414A (en) * | 2013-04-18 | 2013-08-21 | 成都技高科技有限公司 | Wireless water meter reading system with good stability |
| CN105262815A (en) * | 2015-10-22 | 2016-01-20 | 珠海市杰理科技有限公司 | Wireless transmission method and system based on radio frequency |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20131117 |