CN204633766U - The multichannel wireless receiving and dispatching communication system of river model test - Google Patents
The multichannel wireless receiving and dispatching communication system of river model test Download PDFInfo
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- CN204633766U CN204633766U CN201520059699.9U CN201520059699U CN204633766U CN 204633766 U CN204633766 U CN 204633766U CN 201520059699 U CN201520059699 U CN 201520059699U CN 204633766 U CN204633766 U CN 204633766U
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Abstract
The multichannel wireless receiving and dispatching communication system of river model test, be made up of a host computer and multiple separate slave computer, host computer is made up of with code stream switching device and host computer wireless communication module main control computer, communication controller, and main control computer is used for user interactions, channel setting and channel management; Communication controller and code stream switching device are for controlling the connection of upper and lower machine wireless communication module; Main control computer connecting communication controller and code stream switching device, communication controller is connected with host computer wireless communication module with code stream switching device; Slave computer wireless communication module is provided with in slave computer, and be connected with limnimeter, current meter, sand meter or wave-height gauge, host computer and each slave computer carry out radio communication, five host computer radio channel modules are provided with, the data transmit-receive of the corresponding radio channel of each radio channel module management in host computer wireless communication module.The advantage that the utility model has at a distance, transmission rate is fast.
Description
Technical field
The adaptive channel that the utility model relates to the communication of river model test channel wireless radio multi switches and data management field, is specifically related to a kind of adaptive wireless communication control system of river model test.
Background technology
In large-scale river model test, water level, flow velocity, husky content and wave height are four kinds of conventional objects needing monitoring, the point of monitoring reaches hundreds of, measuring frequency is high, volume of transmitted data is large, rely on single radio channel can not complete the real-time detection of all these parameters, host computer needs these measurement data of process in real time could realize the effect of Real-Time Monitoring simultaneously, therefore needs multichannel to transmit data between wireless module simultaneously and could meet Real-Time Monitoring requirement.To different experiment places, the actual number of often kind of instrument has difference, therefore can not meet the requirement of actual use to often kind of instrument stationary conduit number.Given this, the utility model proposes the multichannel wireless receiving and dispatching communication system of river model test.
Because the data volume that the exploration scope of large-scale river model test is wide, measurement point is many, need transmit is large and long transmission distance, higher requirement is proposed to wireless module transmission data, the data volume that not only will meet the speed of transfer of data and transmission is large, and also wanting wireless module to meet when to transmit data in the test site of more than 200 meters far away can not have data packetloss or data transmission fault.Code stream automatic decision technology when channel wireless radio multi transmits is the utility model proposes, i.e. multi-channel adaptive wireless transmit-receive technology, to reach transmission rate and the requirement transmitting data correctness and transmission range aspect based on these technical requirements.
Utility model content
The river model test multi-channel adaptive wireless transceiver system that the utility model proposes, this system can select suitable passage to realize wireless transmitting-receiving according to the size of the encoding stream of data stream automatically.
The technical scheme realizing the utility model object is: the multichannel wireless receiving and dispatching communication system of river model test, be made up of a host computer and multiple separate slave computer, described host computer is made up of with code stream switching device and host computer wireless communication module main control computer, communication controller, and described main control computer is used for user interactions, code stream calculating, channel setting and channel management; Described communication controller and code stream switching device are for controlling the connection of radio channel module, and the channel number arrange main control computer and various order are sent to front end respective modules; Described host computer wireless communication module is used for transceiving data; Described main control computer connecting communication controller and code stream switching device, described communication controller is connected with wireless communication module with code stream switching device; Slave computer radio channel module is provided with in described slave computer, and be connected with limnimeter, current meter, sand meter or wave-height gauge, described host computer and each slave computer carry out radio communication, it is characterized in that, five host computer radio channel modules are provided with in described host computer wireless communication module, for representing the five type passages adopted in river model wireless communication system, the data transmit-receive of the corresponding radio channel of each radio channel module management.
As further improvement of the utility model, described host computer performs the following step:
Step 1 wireless communication module enters detecting pattern, main control computer controls each radio channel module and sends out MESSAGE POLL slave computer to respective radio channel successively, slave computer number and the type of each channel module is positioned at according to information collected statistics, according to the number of slave computer in channel module and the data volume of transmission, successively to radio channel block configuration corresponding transmission channel address number, transmission channel and slave computer are arranged to the mode of operation under same channel module, set up pre-connection, to the judgement again of transmission channel after wait;
If 256 channel address in step 2 wireless communication module enough distribute to the passage needed for all slave computers, then confirm that transmission channel is distributed correct, then the pre-connection that the slave computer and transmission channel that distribute channel address are set up is set up, transmission channel enters idle pulley, waits the transmission of pending data;
If the channel address in step 3 wireless module is not enough to distribute, the pre-connection then set up in step 1 is false, redistribute transmission channel address and connect: the communication information amount calculating each passage according to the slave computer number in each channel module and type, by the principle of amount of information equilibrium, namely the rational mean allocation channel address of data volume of transmission is needed according to each channel module, to reconfiguring of wireless communication module transmission channel number, and re-established new connection according to the configuration after changing, and enter idle pulley, wait the transmission of pending data.
As further improvement of the utility model, also step 4 is provided with: main control computer carries out corresponding configuration information management to data waiting for transmission in each passage after described step 3, according to the poll time of configuration information arrangement to each slave computer, and carry out adaptive bitrate control.
Data management format in described step 4 in main control computer is: channel number, limnimeter number and counterlogic address, current meter number and counterlogic address, sand meter number and counterlogic address, wave-height gauge number and counterlogic address and communication information flow per second.
Described adaptive bitrate control process comprises: judge whether just at work this passage from main separation channel transmission data, if find there is code stream in this passage, namely this passage transmits data, then continue to judge to select next passage whether to meet transmission requirement transmission, if or it is occupied, then continue again to judge next passage, till selecting the suitable passage transmitted.In the suitable passage transmitted selected, judge whether the code stream that need transmit exceedes the propagation threshold of the transmission channel of setting in advance, if do not exceed propagation threshold, sets up expanding channels; If exceeded, continue to find new tunnel and transmit the code stream part exceeded, until after choosing the suitable passage transmitted, connect, realize the transmission of data efficient between wireless module.
the effect that the utility model is created and advantage
(1) the multi-channel adaptive wireless transmit-receive technology that the utility model proposes can either be useful in the little wireless transmission of short distance, transmitted data amount, also can be useful in remote, that transmitted data amount is large wireless transmission.
(2) the utility model can be applicable in the wireless module transfer of data of large-scale river model test, there is remote, that transmission rate is fast advantage, and when needing transmitted data amount very large, the utility model can again from the suitable channel transfer of main separation after the suitable radio channel transmission data of main separation or the data that need transmit reasonably are split.The phenomenon of transmission channel disorder or packet loss can not be there is.Both save the transmission time, turn improve efficiency of transmission.
(3) field test through a large amount of is provable, and in the test that large-scale river model is such, in satisfied test under the requirement of transmission range, transmission rate, transmission packet correctness etc., the reliable distance that transmitting/receiving wireless module can be transmitted reaches about 200m.
Accompanying drawing explanation
Fig. 1 is the structural representation of host computer in the wireless communication control system of the utility model embodiment 1.
Embodiment
The multichannel wireless receiving and dispatching communication system of river model test, be made up of a host computer and 32 separate slave computers, limnimeter, current meter, sand meter or wave-height gauge are connected in each slave computer, also be provided with slave computer radio channel module in slave computer, host computer and each slave computer carry out radio communication.As shown in Figure 1, host computer is made up of with code stream switching device and wireless communication module main control computer, communication controller, main control computer is for receiving experimental data and sending control command, and communication controller and code stream switching device are used for user interactions, code stream calculating, the connection of radio channel module and the distribution of transmission and each channel module passage lower channel number of addresses; Host computer wireless communication module is used for transceiving data; Main control computer connecting communication controller and code stream switching device, communication controller is connected with host computer wireless communication module with code stream switching device; Five host computer radio channel modules are provided with in host computer wireless communication module, five host computer channel modules represent the passage of five types adopted in river model wireless communication system, and all front end communication unit are set to one in these five host computer channel modules.
(1) experiment starts, to host computer wireless communication module power supply, host computer wireless communication module enters detecting pattern, first main frame sends out MESSAGE POLL slave computer to host computer first radio channel module, slave computer number and the type of this passage is positioned at according to information collected statistics, in wireless module, corresponding transmission channel number is configured according to the number of slave computer and the data volume of transmission, under slave computer and transmission channel are arranged on same mode of operation, set up pre-connection, to the judgement again of transmission channel after wait.
(2) same step (1), respectively by host computer second, third, the 4th and the 5th radio channel module sends out MESSAGE POLL slave computer, slave computer number and the data type of respective passage is positioned at according to information collected statistics, and in each host computer radio channel module, configure corresponding data transmission channel number according to the information passed back, set up pre-connection simultaneously.
(3) if 256 channel address in wireless module enough distribute to the passage needed for 5 channel modules, then confirm that transmission channel is distributed correct, the pre-connection that so, separately the slave computer of channel number and transmission channel are set up is set up, and enters idle pulley, waits the transmission of pending data.
(4) if the channel number in host computer wireless communication module is not enough to the slave computer distributed in passage, the pre-connection set up is so false, and need redistribute transmission channel and connect.The communication information amount of each passage is calculated according to the slave computer number in each passage and type, by the principle of amount of information equilibrium, carry out the configuration of slave computer channel number, re-establish new connection according to the configuration after change simultaneously, and enter idle pulley, wait the transmission of pending data.
(5) in main control computer, carry out corresponding configuration information management, the data format managed the information of each passage in computer is the foundation that the slave computer information unit of main control computer to each passage carries out information scanning simultaneously.The data volume of four kinds of instrument transmission per second is different, and corresponding shared sweep time is also different.According to statistical information, main control computer reasonable arrangement to the access time of each slave computer, and carries out adaptive bitrate control.
As shown in Figure 1, adaptive bitrate control process is as follows: before transmitting the data, first connection should be set up by wireless communication module between slave computer and host computer, host computer wireless communication module has 5 transmission channels to select, when wireless module is received and dispatched, the system of selection of host computer transmission channel is: judge whether just at work this passage from main separation channel transmission data, if find there is code stream in this passage, namely this passage transmits data, then continue to judge to select next passage whether to meet transmission requirement transmission, if or it is occupied, then continue again to judge next passage, till selecting the suitable passage transmitted.In the suitable passage transmitted selected, judge whether the code stream that need transmit exceedes the propagation threshold of the transmission channel of setting in advance, if do not exceed propagation threshold, sets up expanding channels; If exceeded, continue to find new tunnel and transmit the code stream part exceeded, until after choosing the suitable passage transmitted, connect, realize the transmission of data efficient between wireless communication module.
Claims (1)
1. the multichannel wireless receiving and dispatching communication system of river model test, be made up of a host computer and multiple separate slave computer, described host computer is made up of with code stream switching device and host computer wireless communication module main control computer, communication controller, and described main control computer is used for user interactions, channel setting and channel management; Described communication controller and code stream switching device are for controlling the connection of upper and lower machine radio communication mold interblock, and the channel number arrange main control computer and various order are sent to front end respective modules; Described host computer wireless communication module is used for transceiving data; Described main control computer connecting communication controller and code stream switching device, described communication controller is connected with host computer wireless communication module with code stream switching device; Slave computer wireless communication module is provided with in described slave computer, and be connected with limnimeter, current meter, sand meter or wave-height gauge, described host computer and each slave computer carry out radio communication, it is characterized in that, five host computer radio channel modules are provided with in described host computer wireless communication module, for representing the five type passages adopted in river model wireless communication system, the data transmit-receive of the corresponding radio channel of each host computer radio channel module management.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104702309A (en) * | 2015-01-28 | 2015-06-10 | 水利部交通运输部国家能源局南京水利科学研究院 | River model test multi-channel wireless transmission and receiving communication system |
| CN107014282A (en) * | 2017-05-10 | 2017-08-04 | 浙江省水利河口研究院 | A kind of wave run-up measuring system based on capacitance type sensor |
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2015
- 2015-01-28 CN CN201520059699.9U patent/CN204633766U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104702309A (en) * | 2015-01-28 | 2015-06-10 | 水利部交通运输部国家能源局南京水利科学研究院 | River model test multi-channel wireless transmission and receiving communication system |
| CN107014282A (en) * | 2017-05-10 | 2017-08-04 | 浙江省水利河口研究院 | A kind of wave run-up measuring system based on capacitance type sensor |
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