CN108471642A - A kind of infusion pump network of LoRa transmission - Google Patents
A kind of infusion pump network of LoRa transmission Download PDFInfo
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- CN108471642A CN108471642A CN201810253506.1A CN201810253506A CN108471642A CN 108471642 A CN108471642 A CN 108471642A CN 201810253506 A CN201810253506 A CN 201810253506A CN 108471642 A CN108471642 A CN 108471642A
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- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 238000001802 infusion Methods 0.000 title claims abstract description 48
- 230000005540 biological transmission Effects 0.000 title claims abstract description 29
- 238000004891 communication Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 9
- 241000209094 Oryza Species 0.000 claims abstract description 8
- 235000007164 Oryza sativa Nutrition 0.000 claims abstract description 8
- 235000021186 dishes Nutrition 0.000 claims abstract description 8
- 238000012544 monitoring process Methods 0.000 claims abstract description 8
- 235000009566 rice Nutrition 0.000 claims abstract description 8
- 101100172132 Mus musculus Eif3a gene Proteins 0.000 claims abstract description 5
- 238000001647 drug administration Methods 0.000 claims abstract description 5
- 230000005611 electricity Effects 0.000 claims description 4
- 230000003111 delayed effect Effects 0.000 claims description 2
- 239000006185 dispersion Substances 0.000 claims description 2
- 238000002224 dissection Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000003993 interaction Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
- H04W74/0816—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/713—Spread spectrum techniques using frequency hopping
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
- H04L67/125—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
- H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
- H04W74/0825—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision detection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
- H04W74/0841—Random access procedures, e.g. with 4-step access with collision treatment
- H04W74/085—Random access procedures, e.g. with 4-step access with collision treatment collision avoidance
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
- H04W74/0841—Random access procedures, e.g. with 4-step access with collision treatment
- H04W74/0858—Random access procedures, e.g. with 4-step access with collision treatment collision detection
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Computing Systems (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The present invention proposes a kind of infusion pump network of LoRa transmission.The network is made of several LoRa infusion pumps and several LoRa gateways, the LoRa of pump head is transmitted transmits drug administration information using elastic method, are distinguished by priority and reports processing for non-administration, normal administration and three kinds of states of critical administration, effectively improves the bandwidth availability ratio of LoRa networks.The LoRa transmission MAC layers of pump head use the frequency hopping means of communication：LoRa modules on pump head are configured identical multiple radio-frequency channels on LoRa gateways；Configured channel is randomly choosed before pump head reported data, monitors RSSI signal strengths of eating dishes without rice or wine, if RSSI is less than threshold value, direct reported data；If RSSI is more than threshold value, then it is assumed that the channel busy randomly chooses remaining channel and monitors RSSI signal strengths of eating dishes without rice or wine；And so on, if all channels are all busy, kept out of the way into line delay by CSMA algorithms, be monitored again after keeping out of the way, reported data when monitoring channel idle abandons the data if keeping out of the way more than maximum times.The high concurrent communication of wireless LoRa infusion pumps network is achieved, substantially increases the data transmission success of LoRa infusion pumps.
Description
Technical field
The present invention proposes a kind of infusion pump network of LoRa transmission, is related to Internet of Things, low-power consumption Wide Area Network field.
Background technology
LoRa is one kind in the LPWAN communication technologys, is the super long distance that Semtech companies are developed based on CSS spread spectrums
From wireless transmission scheme.This scheme changes considered mode about the compromise of transmission range and power consumption in the past, provided to the user
It is a kind of simple to realize remote, long battery life, large capacity system.FSK networks traditional at present have multipath effect, account for
It is wider with frequency band, the shortcomings of band efficiency is relatively low, the application being unfavorable in building；LoRa has remote compared to FSK modulation mode
Distance, low-power consumption, strong interference immunity advantage, be suitably applied in distance farther out, in the more complex scheme of environment, therefore wireless
LoRa scheme in communication is gradually used in infusion pump.
But in the practical application of LoRa infusion pumps, infusion pump needs quick (typical cycle is 30 seconds) to send out administration letter
Breath, to allow service station to understand administrations in time.This and low-power consumption sensor a very long time (typical cycle is 1 day) are
The application method for sending out 1 bag data is different.Since LoRa rates are low, time-consuming in the air for single bag data of LoRa infusion pumps, therefore
More channel confliction is will produce, air-data is caused to be lost.Especially in building application, it will usually have tens infusion pumps
It works at the same time, the probability of such channel confliction can higher.Therefore high frequency interaction, air-data easily collide, at LoRa infusion pumps
The problem of application.
Invention content
In view of the above-mentioned problems, the present invention propose one kind can elasticity adjustment the period, can frequency-hopping transmissions LoRa infusion pump nets
Network ensures that the administration data of infusion pump timely and reliably transmits to solve the problems, such as that high frequency interaction and air-data are collided.
The LoRa infusion pump networks include：Several infusion pumps include master controller, battery in the pump head of each infusion pump
Power supply module, LoRa transmission modules and administration acquisition module；Several LoRa gateways, dispersion are deployed in building to meet LoRa
The network coverage of infusion pump, and LoRa gateways are arranged multiple radio-frequency channels using multiple LoRa transmission modules and work at the same time.
Further, the application layer of the LoRa transmission of the pump head uses following elastic method：
When infusion pump is not when being administered operation, using lowest priority, the longest period (representative value is 10 minutes) reports and sets
Standby information about power；
When infusion pump is normally administered, (representative value is 1 minute) sending device electricity of medium period and drug administration information are used；
Threshold value is administered when infusion pump administration regime is less than, when close to critical quantity, uses earliest possible cycle (representative value is 30 seconds) hair
Send equipment electricity and drug administration information.
Further, the MAC layer of the LoRa transmission of the infusion pump uses the following frequency hopping means of communication：
Step 1, the LoRa modules on pump head are configured identical multiple radio-frequency channels on LoRa gateways；
Step 2, configured channel is randomly choosed before pump head reported data, RSSI signal strengths of eating dishes without rice or wine is monitored, if RSSI is small
In threshold value, then direct reported data；If RSSI is more than threshold value, then it is assumed that the channel busy randomly chooses remaining channel,
It is same to monitor RSSI signal strengths of eating dishes without rice or wine；
Step 3, and so on, after the completion of the monitoring of all channels, if channel is all busy, prolonged by CSMA algorithms
When keep out of the way, be monitored again after keeping out of the way, reported data when monitoring channel idle abandons if keeping out of the way more than maximum times
The data.
Further, the Remote configuration of the infusion pump is safeguarded with the following method：The LoRa transmission modules of pump head are each
It is delayed 1 second to open after transmission data and receives window, system platform processing time made allowance is given, to save power consumption；If center service
Device needs to configure the node relevant parameter, then transmitting order to lower levels sent out dimension on time to gateway by 1 second of gateway after receiving the data
Protect administration order；The LoRa transmission modules of pump head open the suspend mode immediately if no data after reception window, have data completely to connect
It receives the data packet and carries out configuration information dissection process.
By the method, LoRa infusion pump related datas interaction cycle is carried out being classified elastic adjustment, improves LoRa networks
Bandwidth availability ratio.In conjunction with the frequency hopping communication network of MAC layer, single-channel channel collision issues are solved, it is defeated to realize wireless LoRa
The high concurrent communication of note pump network, substantially increases the data transmission success of LoRa infusion pumps.And the nothing using low-power consumption
Line interactive mode can facilitate server to realize that effective Remote configuration is safeguarded to LoRa infusion pumps by gateway.
Description of the drawings
Fig. 1 is the work flow diagram of LoRa infusion pumps frequency hopping communication of the present invention；
Fig. 2 is the example topological diagram of LoRa infusion pumps network of the present invention；
Specific implementation mode
In order to make technical scheme of the present invention be more clearly understood, with reference to the accompanying drawings and embodiments, to the present invention into advance one
Step is described in detail.Assume that the number of channel in LoRa gateways is 4 in the present embodiment.
Fig. 1 is the work flow diagram of the MAC layer frequency hopping communication of LoRa infusion pumps of the present invention.
First, the LoRa modules on pump head are configured identical multiple radio-frequency channels on LoRa gateways.
Secondly, when pump head will report administration data, a channel is first randomly choosed from configured channel, monitoring is empty
Mouth RSSI signal strengths directly report administration data in the channel if RSSI is less than threshold value；If RSSI is more than door
Limit value, then it is assumed that the channel busy randomly chooses one from other remaining several channels.Equally monitor eating dishes without rice or wine for the channel
RSSI signal strengths, and so on.
Then, it after the completion of to the monitoring of all channels, if channel is all busy, is moved back into line delay by CSMA algorithms
It keeps away, is monitored again after keeping out of the way, reported data when monitoring channel idle abandons the number if keeping out of the way more than maximum times
According to.
Fig. 2 is the example topological diagram of LoRa infusion pump networks.
The example gateway is respectively C1, C2, C3, C4 provided with 4 channels, can receive the pump head data of 4 channels simultaneously.
It needs to transmit administration data to gateway simultaneously assuming that being carved with 8 pump heads when a certain.
Pump head 1 selects C1, channel idle to directly transmit first；
In next step, pump head 2 selects C1, and detection is eated dishes without rice or wine, and RSSI is busy, then frequency hopping selection C2 is sent；
In next step, also frequency hopping has selected C3 and C4, transmission data to pump head 3,4 respectively；
In next step, pump head 5,6,7,8 detects all channel busies, then starts CSMA delays and keep out of the way.
Again in next step, after random delay, C1, C2, C3, C4 channel all restore idle in succession, and pump head 5,6,7,8 is logical at this time
Channel Detection and frequency hopping are crossed, finds idle channel in succession, and then completes data and sends.
The present invention uses the frequency hopping means of communication of the LoRa infusion pump networks embodied in examples detailed above, solves single-channel letter
Road collision problem, realizes the high concurrent communication of wireless LoRa infusion pumps network, and the data for substantially increasing LoRa infusion pumps pass
Defeated success rate.Machine is adjusted in addition combined with the classification elasticity of the LoRa infusion pump related data interaction cycles illustrated in the content of present invention
System, can effectively improve the bandwidth availability ratio of LoRa networks.And the Remote configuration maintenance mode of infusion pump is provided, it can be in reality
While existing Remote configuration is safeguarded, the Save power consumption to LoRa infusion pumps is realized.
Although specifically showing and describing invention in conjunction with example is preferably implemented, those skilled in the art should be bright
In vain, it is not departing from the spirit and scope invented defined by the appended claims, it in the form and details can be to hair
It is bright to make a variety of changes, it is the protection domain of invention.
Claims (4)
1. a kind of infusion pump network of LoRa transmission, which is characterized in that the LoRa infusion pumps network includes：Several infusions
It pumps, master controller, battery powered module, LoRa transmission modules and administration acquisition module is included in the pump head of each infusion pump；If
Dry LoRa gateway, dispersion is deployed in building to meet the network coverage of LoRa infusion pumps, and LoRa gateways are using multiple
LoRa transmission modules are arranged multiple radio-frequency channels and work at the same time.
2. the infusion pump network of LoRa transmission according to claim 1, which is characterized in that the LoRa transmission of the pump head is answered
Following elastic method is used with layer：
When infusion pump is not when being administered operation, using lowest priority, the longest period (representative value is 10 minutes) reports and sets
Standby information about power；
When infusion pump is normally administered, (representative value is 1 minute) sending device electricity of medium period and drug administration information are used；
Threshold value is administered when infusion pump administration regime is less than, when close to critical quantity, uses earliest possible cycle (representative value is 30 seconds) hair
Send equipment electricity and drug administration information.
3. the infusion pump network of LoRa transmission according to claim 1, which is characterized in that the LoRa transmission of the pump head
MAC layer uses the following frequency hopping means of communication：
Step 1, the LoRa modules on pump head are configured identical multiple radio-frequency channels on LoRa gateways；
Step 2, configured channel is randomly choosed before pump head reported data, RSSI signal strengths of eating dishes without rice or wine is monitored, if RSSI is small
In threshold value, then direct reported data；If RSSI is more than threshold value, then it is assumed that the channel busy randomly chooses remaining channel,
It is same to monitor RSSI signal strengths of eating dishes without rice or wine；
Step 3, and so on, after the completion of the monitoring of all channels, if channel is all busy, prolonged by CSMA algorithms
When keep out of the way, be monitored again after keeping out of the way, reported data when monitoring channel idle abandons if keeping out of the way more than maximum times
The data.
4. the infusion pump network of LoRa transmission according to claim 1, which is characterized in that the Remote configuration of the pump head is safeguarded
With the following method：It is delayed 1 second to open after each transmission data of LoRa transmission modules of pump head and receives window, at system platform
Time made allowance is managed, to save power consumption；If central server needs to configure the node relevant parameter, transmitting order to lower levels to gateway,
Maintenance management order is sent out by 1 second of gateway after receiving the data on time；The LoRa transmission modules of pump head, which are opened, receives window
The suspend mode immediately if no data afterwards has data completely to receive the data packet and carries out configuration information dissection process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810253506.1A CN108471642A (en) | 2018-03-26 | 2018-03-26 | A kind of infusion pump network of LoRa transmission |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810253506.1A CN108471642A (en) | 2018-03-26 | 2018-03-26 | A kind of infusion pump network of LoRa transmission |
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| CN108471642A true CN108471642A (en) | 2018-08-31 |
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| CN201810253506.1A Pending CN108471642A (en) | 2018-03-26 | 2018-03-26 | A kind of infusion pump network of LoRa transmission |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109526064A (en) * | 2018-12-26 | 2019-03-26 | 山东有人信息技术有限公司 | A kind of bypassing method of LoRaWAN channel confliction |
| CN110446227A (en) * | 2019-10-08 | 2019-11-12 | 武汉慧联无限科技有限公司 | Control method and device, the equipment, medium on user equipment downlink window unlatching opportunity |
| CN111130715A (en) * | 2019-12-13 | 2020-05-08 | 西北大学 | Lora wireless network and parameter optimization and transmission method and device thereof |
| CN111669782A (en) * | 2020-07-02 | 2020-09-15 | 深圳市世纪本原科技股份有限公司 | Network anti-blocking method and device based on LoRa |
| CN112788776A (en) * | 2019-11-07 | 2021-05-11 | 阿里巴巴集团控股有限公司 | LoRa data transmission method, device, equipment and storage medium |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109526064A (en) * | 2018-12-26 | 2019-03-26 | 山东有人信息技术有限公司 | A kind of bypassing method of LoRaWAN channel confliction |
| CN109526064B (en) * | 2018-12-26 | 2020-09-04 | 山东有人信息技术有限公司 | Method for avoiding LoRaWAN channel conflict |
| CN110446227A (en) * | 2019-10-08 | 2019-11-12 | 武汉慧联无限科技有限公司 | Control method and device, the equipment, medium on user equipment downlink window unlatching opportunity |
| CN112788776A (en) * | 2019-11-07 | 2021-05-11 | 阿里巴巴集团控股有限公司 | LoRa data transmission method, device, equipment and storage medium |
| CN111130715A (en) * | 2019-12-13 | 2020-05-08 | 西北大学 | Lora wireless network and parameter optimization and transmission method and device thereof |
| CN111130715B (en) * | 2019-12-13 | 2021-08-24 | 西北大学 | Lora wireless network and parameter optimization and transmission method and device thereof |
| CN111669782A (en) * | 2020-07-02 | 2020-09-15 | 深圳市世纪本原科技股份有限公司 | Network anti-blocking method and device based on LoRa |
| CN111669782B (en) * | 2020-07-02 | 2023-11-03 | 深圳市世纪本原科技股份有限公司 | Network anti-blocking method and device based on LoRa |
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