CN108986438A - A kind of gantry crane data wireless monitor system based on LoRa - Google Patents
A kind of gantry crane data wireless monitor system based on LoRa Download PDFInfo
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- CN108986438A CN108986438A CN201810939394.5A CN201810939394A CN108986438A CN 108986438 A CN108986438 A CN 108986438A CN 201810939394 A CN201810939394 A CN 201810939394A CN 108986438 A CN108986438 A CN 108986438A
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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Abstract
A kind of gantry crane data wireless monitor system based on LoRa of present disclosure, comprising: terminal sensor-based system, sensor gateway, network server, central monitoring platform.Development of logistics line was swift and violent in recent years, and the construction of auxiliary facility is also gradually comprehensive, and the large scale structure equipment requirement of harbour, harbour is being continuously improved.A set of perfect monitoring system is self-evident for the safety at entire harbour.For the particularity of harbour working site, proposes and a kind of data acquisition is carried out to shore container crane based on the wireless monitor system of LoRa.The system realizes data interaction using LoRa radio-frequency module as core, using star net forming mode.The overviews such as its network architecture mechanism, operating mode are elaborated, available data transmission method is improved in conjunction with the characteristics of harbour machinery structure.This emerging communication network of LoRa is applied to marine port neighborhood, gives full play to the advantages such as its long transmission distance, low in energy consumption, gantry crane work real-time monitoring, data transmission, intelligent management and control is realized, ensures the reliable and stable operation of large scale equipment.
Description
Technical field
The present invention relates to low-power consumption wan communication fields, and in particular to a kind of gantry crane data wireless monitor based on LoRa
System.
Background technique
With the high speed development of logistic industry, the requirement to harbour lifting equipment is also increase accordingly.Portal crane is one
The very heavy heavy duty equipment of kind operating condition, load is complicated and changeable, and dynamic characteristic is significant.Most as container hargour
Important handling facilities, gantry crane can normal operation directly influence the production efficiency and economy at harbour.By being closed in gantry crane
Key position installation sensor is monitored gantry crane, and improving port equipment management level is trend of the times.Currently, existing sensing
Device is attached by cable and host, and this traditional wired communication mode whether tie up by installation cost or later period
Shield, is all lacking under the open-air atmosphere of this complexity in harbour.
Existing wireless communication mode has wide area network connection and two kinds of LAN connection.Wide area network connection is more by telecommunications
The cellular network that operator provides, as GPRS, 3G, 4G etc..LAN connection mode is mainly WiFi, bluetooth, ZigBee etc..But
The characteristics of being them clearly, bluetooth and ZigBee is low in energy consumption but transmission range is short；The long transmission distance but function of cellular network
It consumes very high.Since there is LPAWAN (Lower Power Wide Area Network, low-power consumption wide area network) technology, just
The problem of compensating for this short slab of Internet layer, largely having taken into account low-power consumption and long transmission distance.As LPWAN
One of technology --- LoRa(Long Range, long-range), it is a kind of novel wireless communication technology, advanced spread spectrum is utilized
Modulation technique and coding and decoding scheme increase link budget and better interference free performance, to deep fading and Doppler frequency shift
With better stability.And have remote, low-power consumption (battery life is long), multinode, low cost characteristic.The present invention
It will be applied in gantry crane data monitoring system, realize safer, high in conjunction with LoRa wireless communication technique and the GPRS communication technology
The monitoring of tools of effect provides a strong guarantee for harbour production.
Summary of the invention
It is some present in existing gantry crane monitoring technology to solve the problems, such as, now invent a kind of gantry crane data based on LoRa without
Line monitoring system comprising: terminal sensor-based system, sensor gateway, network server, central monitoring platform；
Terminal sensor-based system is distributed at each main stress node of gantry crane, by super low-power consumption type single-chip microcontroller as controller, is
A kind of distributed intelligence integrated sensor system, including vibrating sensor, temperature sensor, strain transducer, LoRa radio frequency mould
Block, controller, power module, memory, RS-485 interface and RS-232 interface, the vibration that terminal sensor-based system passes through each node
Sensor, strain transducer and temperature sensor are moved to acquire the vibration, strain, temperature signal of gantry crane structure, then passes through RS-
485 interfaces are by controller deposit memory.LoRa radio-frequency module calls the data in memory to be sent by controller,
Sensor gateway is sent the signal to, plurality of LoRa radio-frequency module carries out many-one communication using star net forming；
For sensor gateway equally by single-chip microcontroller as controller, coupled has LoRa radio-frequency module, RS-232 interface, power supply
Module, memory, GPRS module and USB interface；Signal is received via LoRa radio-frequency module, is stored in memory by controller
In, then delay transmission, RS-232 interface and USB interface carried out as spare interface derived from data by GPRS module；
Controller is super low-power consumption type single-chip microcontroller, at 125 DEG C, is not higher than 28 μ A in flash memory when low power operation, to
Power consumption is not higher than 1.35 μ A when machine；
LoRa radio-frequency module, for communication frequency in two frequency ranges of 433MHz and 740MHz, minimal communications distance is 3KM, transmitting length
Degree and reception length are single data packet 256B;
Network server stores collected gantry crane data, provides number for central monitoring platform；
Central monitoring platform includes display interface, and the collected data of terminal node sensor can be presented on aobvious by display interface
Show on device, so that the status data of real-time monitoring gantry crane is capable of in enterprise, and alarm can be provided under dangerous working condition, effectively mentioned
High port security production management level；
Sensor gateway is responsible for receiving the uplink data of terminal node, data is then gathered one respectively individually
Backhaul connection, solves the problems, such as that multichannel data is concurrent, realization data collection and forwarding；
Multi-data processing packing is merged into all the way, is sent to by GPRS network by sensor gateway and network server
Network server.
Terminal sensor-based system is equipped with reset button in its sensor external, so that terminal node restores initial setting up at any time.
A kind of gantry crane wireless data transmission method based on LoRa uses the above-mentioned gantry crane data wireless monitor based on LoRa
System, comprising the following steps:
Step 1: the controller of terminal sensor-based system is in standby, and begins through vibration after receiving the instruction of sensor gateway
Dynamic sensor, strain transducer and temperature sensor acquire data；
Step 2: the sample frequency realization of sensor is set, and after sensor acquisition reaches the data of certain period of time, is passed through
Data are stored in spare in memory by controller；
Step 3: the data in memory are called by controller, are transmitted data to sensor by LoRa radio-frequency module
Gateway；
Step 4: after the LoRa radio-frequency module when the sensor network Central Shanxi Plain receives data packet, transmission response, which instructs to sense to terminal, is
System, it is then standby that terminal sensor-based system receives response instruction；If terminal sensor-based system does not receive response instruction, after delay again
It is secondary to send data packet to sensor gateway.
Beneficial effect
Compared with prior art, the invention has the following advantages that
1, with the advantage that cost is cheap in gantry crane status monitoring, in addition wirelessly LoRa wireless communication technique is applied
Installation relative to wired installation, plant maintenance is convenient, fault diagnosis is simple, has saved the cost of upgrading wiring.
2, LoRa communication the characteristics of can accommodating multinode, suit contemporary port and pier greatly develop, mechanical equipment it is increased
Trend, capacity is sufficiently large can to fully meet enterprise demand.The integrated wireless sensing system of its distributed intelligence can be independent
The control to industrial process is realized in operator, is easily used.
3, the spacious wide ground environment in harbour, shelter is few, can will just have the LoRa of longer transmission distance originally
Wireless communication technique uses ultimate attainment, gives full play to its own advantage.
4, the low feature of the low-power consumption of the LoRa communication technology, transmission rate causes application limited, and the present invention passed through at end
On end sensor plus the mode of memory delay transmission effectively solves, and the monitoring occasion not high for requirement of real-time has guidance
Meaning.
5, sensor will be applied to the characteristics of LoRa communications distribution node, it is any using the networking mode of hub-and-spoke configuration
One terminal node sensor, which is out of order, all will not influence entire monitoring system normal operation, and functional reliability is high.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is inventive network structural schematic diagram；
Fig. 2 is terminal sensor-based system schematic diagram of the present invention；
Fig. 3 is terminal sensor-based system flow chart of the present invention；
Fig. 4 is inventive sensor gateway schematic diagram；
Fig. 5 is inventive sensor gateway flow chart.
Specific embodiment
The embodiment of the present invention is described below in detail, the embodiment is exemplary, it is intended to it is used to explain the present invention, and
It is not considered as limiting the invention.
The present invention relates to a kind of gantry crane data wireless monitor system based on LoRa, by production work has been put into
Large-scale gantry crane equipment carries out real-time monitoring, to ensure its safety in production operation under some strength load condition.
The present invention is a kind of gantry crane data wireless monitor system based on LoRa comprising following components: terminal passes
Sensing system, sensor gateway, network server, central monitoring platform；Schematic network structure is referring to Fig. 1.
The terminal sensor-based system is fixed at each main stress node of gantry crane structure, firstly, by general to gantry crane
Biggish node loaded is determined that determination needs cloth when being easy to the node of fatigue rupture, the node that stress is concentrated and work
The position of sensor is set, the position that can may meet with destruction to the gantry crane overwhelming majority in this way is monitored.Terminal sensor-based system
Schematic diagram as shown in Fig. 2, there is following major part, including vibrating sensor, temperature sensor, strain gauge transducer,
LoRa radio-frequency module and controller, RS-485 interface, RS-232 interface, power module and memory；The sensor is used to adopt
Collect vibration, the strain, temperature information of gantry crane structure, then signal data is stored in via controller by memory by RS-485 interface
In；When needing to send signal, the data in memory are called by controller, then send data to by LoRa radio-frequency module
Sensor gateway is received data by the LoRa radio-frequency module in the sensor network Central Shanxi Plain, and wherein RS-232 interface is exported as data
Spare interface.Also, due to thering are multiple measuring points to be all disposed with sensor in gantry crane structure, so by the way of star-like networking
Construct the communication between LoRa radio-frequency module.
It is elected to after setting point position, terminal sensor-based system runs program.Using standby-standby cycle operation of wake-up-
Mode reduces power consumption.Sensor acquires gantry crane structured data after wake-up, is stored in memory after reaching predetermined time value, then pass through
LoRa wireless radio frequency modules upload data to sensor gateway, otherwise continue standby to next wake up.Furthermore, it is contemplated that LoRa is logical
The characteristics of letter is exactly low-power consumption low transmission rate, thus system by collected data it is stored after, then carry out delay transmission, fit
For to the occasion that requirement of real-time is not high and data volume is big.
A kind of gantry crane wireless data transmission method based on LoRa uses the above-mentioned gantry crane data wireless monitor based on LoRa
System, method flow diagram are as shown in Figure 3, comprising the following steps:
Step 1: the controller of terminal sensor-based system is in standby, and begins through vibration after receiving the instruction of sensor gateway
Dynamic sensor, strain transducer and temperature sensor acquire data；
Step 2: the sample frequency realization of sensor is set, and after sensor acquisition reaches the data of certain period of time, is passed through
Data are stored in spare in memory by controller；
Step 3: the data in memory are called by controller, are transmitted data to sensor by LoRa radio-frequency module
Gateway；
Step 4: after the LoRa radio-frequency module when the sensor network Central Shanxi Plain receives data packet, transmission response, which instructs to sense to terminal, is
System, it is then standby that terminal sensor-based system receives response instruction；If terminal sensor-based system does not receive response instruction, after delay again
It is secondary to send data packet to sensor gateway.
Sensor gateway includes LoRa radio-frequency module, GPRS communication module, controller, power module, memory, RS-232
Interface and USB interface；Wherein LoRa radio-frequency module is matched with multiple LoRa radio-frequency modules in above-mentioned terminal sensor-based system
Communication receives data information, is uploaded to network server by GPRS network again after integration processing, sensor gateway schematic diagram is such as
Shown in Fig. 4.
The LoRa wireless radio frequency modules in the terminal sensor-based system and sensor network Central Shanxi Plain needs are matched in advance, are used
Many-to-one star-like connection networking mode, wherein when some terminal node sensor failure, will not influence system its
He partially operates normally, and effectively improves stability.
Sensor gateway flow chart is being identified through as shown in figure 5, it is also to switch between operating mode standby
Response instruction then is sent to downstream station when the data that LoRa wireless radio frequency modules receive are complete；If the data packet received damages
It is bad then abandon it.Effective gantry crane data are transmitted to by network server by GPRS network again, are recycled with this.
The network server is mainly used to carry out storage and management to collected gantry crane data information, to Internet resources
It is allocated management and provides data service for central monitoring platform；The data information of network server receiving sensor gateway,
Central monitoring platform is sent to by local area network again.
The central monitoring platform includes display system, and display system can be by the collected data of terminal node sensor
It presents over the display, so that the status data of real-time monitoring gantry crane is capable of in enterprise, and report can be provided under dangerous working condition
It is alert, effectively improve port security production management level.
Logistic industry, Port Container Cranes are indispensable important equipments, for its working state monitoring system
Necessity without more speeches.The present invention has abandoned the shortcoming of conventional wired sensor, proposes utilization using LoRa as core
Application of the wireless communication technique on gantry crane data monitoring system.It given full play to the long range of LoRa communication, low-power consumption, resisted
The advantages that interference is strong, and the low inconvenience of its transmission rate is avoided with the method that data pre-storage storage postpones to send again,
Also cost declining controls in a relatively low range simultaneously.In future, integration, digitlization, networking and intelligence are enterprises
Industry improves the specific direction of production safety management level using science and technology.
Claims (3)
1. a kind of gantry crane data wireless monitor system based on LoRa characterized by comprising terminal sensor-based system, sensor
Gateway, network server, central monitoring platform；
The terminal sensor-based system is arranged at each main stress node of gantry crane, by super low-power consumption type single-chip microcontroller as control
Device, coupled has RS-485 interface, power module, memory, RS-232 interface and LoRa radio-frequency module, the RS-485
The other end of interface is connected with vibrating sensor, strain transducer and temperature sensor；The terminal sensor-based system passes through vibration
Sensor, strain transducer and temperature sensor measure the signal of gantry crane, then are stored in and are stored by controller by RS-485 interface
In device；LoRa radio-frequency module is to call the data in memory to be sent by controller；Multiple LoRa radio-frequency modules use
Star net forming carries out many-one communication；
The sensor gateway by another single-chip microcontroller as controller, it is coupled have LoRa radio-frequency module, RS-232 interface,
Power module, memory, GPRS module and USB interface；Signal is received via LoRa radio-frequency module, is stored in and is stored by controller
In device, then delay transmission, RS-232 interface and USB interface carried out as spare interface derived from data by GPRS module；
The controller is super low-power consumption type single-chip microcontroller, is not higher than 28 μ A, power consumption when standby when low power operation in flash memory
Not higher than 1.35 μ A；
The LoRa radio-frequency module, for communication frequency in two frequency ranges of 433MHz and 740MHz, minimal communications distance is 3KM, hair
Penetrating length and receiving length is single data packet 256B;
The network server stores collected gantry crane data, provides data for central monitoring platform；
The central monitoring platform includes display interface, and the display interface can be by the collected data of terminal node sensor
It presents over the display, so that the status data of real-time monitoring gantry crane is capable of in enterprise, and report can be provided under dangerous working condition
It is alert, effectively improve port security production management level；
The sensor gateway is responsible for receiving the uplink data of terminal node, and data are then gathered a respectively list
Only backhaul connection, solves the problems, such as that multichannel data is concurrent, realizes data collection and forwarding；
Multi-data processing packing is merged into all the way, is sent by GPRS network by the sensor gateway and network server
To network server.
2. a kind of gantry crane data wireless monitor system based on LoRa according to claim 1, which is characterized in that terminal sensing
System is equipped with reset button in its sensor external, so that terminal node restores initial setting up at any time.
3. a kind of gantry crane wireless data transmission method based on LoRa, uses the gantry crane number as described in claim 1 based on LoRa
According to wireless monitor system, it is characterised in that the described method comprises the following steps:
Step 1: the controller of terminal sensor-based system is in standby, and begins through vibration after receiving the instruction of sensor gateway
Dynamic sensor, strain transducer and temperature sensor acquire data；
Step 2: the sample frequency realization of sensor is set, and after sensor acquisition reaches the data of certain period of time, is passed through
Data are stored in spare in memory by controller；
Step 3: the data in memory are called by controller, are transmitted data to sensor by LoRa radio-frequency module
Gateway；
Step 4: after the LoRa radio-frequency module when the sensor network Central Shanxi Plain receives data packet, transmission response, which instructs to sense to terminal, is
System, it is then standby that terminal sensor-based system receives response instruction；If terminal sensor-based system does not receive response instruction, after delay again
It is secondary to send data packet to sensor gateway.
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| CN109990890A (en) * | 2019-04-10 | 2019-07-09 | 闽江学院 | A kind of massif vibration wave distributed synchronization measuring system and its working method based on LoRa |
| CN110247676A (en) * | 2019-07-17 | 2019-09-17 | 杭州罗万信息科技有限公司 | Termite detects terminal and wireless communication arrangement and method using the terminal |
| CN110248332A (en) * | 2019-07-12 | 2019-09-17 | 贵州电网有限责任公司 | A kind of substation field SF6 leakage alarm monitoring device and monitoring method |
| CN110381514A (en) * | 2019-08-19 | 2019-10-25 | 山东智慧云链网络科技有限公司 | A kind of network-building method and system of harbour wireless network |
| CN110400451A (en) * | 2019-08-06 | 2019-11-01 | 江苏金恒信息科技股份有限公司 | Vibration measuring temp measuring system based on LoRa wireless communication |
| CN111683127A (en) * | 2020-05-27 | 2020-09-18 | 深圳市海洋王照明工程有限公司 | Data transmission method and device and terminal equipment |
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| CN111885527A (en) * | 2020-07-03 | 2020-11-03 | 大连理工大学 | Low-power-consumption ocean sensing data returning method |
| CN111935278A (en) * | 2020-08-07 | 2020-11-13 | 深圳市地质局 | Data acquisition system and method based on LoRa dual-band gateway and nodes |
| CN112013976A (en) * | 2020-07-06 | 2020-12-01 | 天津城建大学 | Concrete temperature measurement system based on loRa |
| CN112055403A (en) * | 2020-09-18 | 2020-12-08 | 浙江万松电气有限公司 | Power consumption management method for converting RS485 mode communication into LORA micropower wireless communication |
| CN112185087A (en) * | 2020-08-03 | 2021-01-05 | 广东省建筑科学研究院集团股份有限公司 | Serial port Internet of things device with low power consumption and automatic civil engineering monitoring system |
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|---|---|---|---|---|
| CN109990890A (en) * | 2019-04-10 | 2019-07-09 | 闽江学院 | A kind of massif vibration wave distributed synchronization measuring system and its working method based on LoRa |
| CN110248332A (en) * | 2019-07-12 | 2019-09-17 | 贵州电网有限责任公司 | A kind of substation field SF6 leakage alarm monitoring device and monitoring method |
| CN110247676A (en) * | 2019-07-17 | 2019-09-17 | 杭州罗万信息科技有限公司 | Termite detects terminal and wireless communication arrangement and method using the terminal |
| CN110400451A (en) * | 2019-08-06 | 2019-11-01 | 江苏金恒信息科技股份有限公司 | Vibration measuring temp measuring system based on LoRa wireless communication |
| CN110381514A (en) * | 2019-08-19 | 2019-10-25 | 山东智慧云链网络科技有限公司 | A kind of network-building method and system of harbour wireless network |
| CN111683127A (en) * | 2020-05-27 | 2020-09-18 | 深圳市海洋王照明工程有限公司 | Data transmission method and device and terminal equipment |
| CN111694048A (en) * | 2020-06-30 | 2020-09-22 | 中国石油天然气集团有限公司 | Vibroseis monitoring method and device and vibroseis monitoring system |
| CN111694048B (en) * | 2020-06-30 | 2023-09-26 | 中国石油天然气集团有限公司 | Controllable seismic source monitoring method and device and seismic source monitoring system |
| CN111885527A (en) * | 2020-07-03 | 2020-11-03 | 大连理工大学 | Low-power-consumption ocean sensing data returning method |
| CN111885527B (en) * | 2020-07-03 | 2021-05-11 | 大连理工大学 | Low-power-consumption ocean sensing data returning method |
| CN112013976A (en) * | 2020-07-06 | 2020-12-01 | 天津城建大学 | Concrete temperature measurement system based on loRa |
| CN112185087A (en) * | 2020-08-03 | 2021-01-05 | 广东省建筑科学研究院集团股份有限公司 | Serial port Internet of things device with low power consumption and automatic civil engineering monitoring system |
| CN111935278A (en) * | 2020-08-07 | 2020-11-13 | 深圳市地质局 | Data acquisition system and method based on LoRa dual-band gateway and nodes |
| CN112055403A (en) * | 2020-09-18 | 2020-12-08 | 浙江万松电气有限公司 | Power consumption management method for converting RS485 mode communication into LORA micropower wireless communication |
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Application publication date: 20181211 |
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| RJ01 | Rejection of invention patent application after publication |