CN205005267U - Sensing node supporting WLAN fingerprint positioning, transport trolley and positioning system - Google Patents
Sensing node supporting WLAN fingerprint positioning, transport trolley and positioning system Download PDFInfo
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- CN205005267U CN205005267U CN201520812938.3U CN201520812938U CN205005267U CN 205005267 U CN205005267 U CN 205005267U CN 201520812938 U CN201520812938 U CN 201520812938U CN 205005267 U CN205005267 U CN 205005267U
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Abstract
The utility model relates to a support WLAN fingerprint location with sensing node, travelling bogie and positioning system, this includes with sensing node: the WIFI positioning system comprises a processor module and a WIFI module which is connected with the processor module and used for fingerprint positioning; the sensing node is also provided with a data interface which is respectively connected with a speed measuring module, a temperature detecting module and a weighing module in the transport trolley; namely, the processor module is suitable for sending the speed, the ambient temperature and the cargo weight information of the transport trolley obtained by the speed measuring module, the temperature detecting module and the weighing module to the server through the WIFI module.
Description
Technical field
The utility model belongs to manufacturing informatization and Internet of Things field, particularly relates to a kind of sensing node supporting wlan fingerprint location.
Background technology
Intelligent plant is as novel manufacturing system, for manufacturer and supplier thereof provide a manufacturing information platform, enterprise is enable to plan to from product design to the whole process of the manufacturing and manage, and by its manufacturing information is shared with supply chain partner in time, thus realize Visual Manufacturing and concurrent engineering, ensure carrying out smoothly of production.
Intelligent plant, by detailed planning and all manufacturing operation of checking prediction, high-qualityly reduces design time, accelerate development and production cycle carrying simultaneously; And can Waste reduction, reduce the unnecessary hardware produced because of project setting and drop into.
Intelligent plant logistics legal be purchase for the raw material Bian of enterprise, provide and deliver in bought transportation and factory, material etc. is manufactured on and produces flowing between node, the logistics infrastructure such as business activity and the warehouse related to, vehicle such as storage and distribution of finished product and device resource and integrate, Integrated Logistics system is planned, performs and the integrated optimization of management activity effective method, measure and the technology etc. such as control, it is generally acknowledged that vehicle scheduling is the key of material delivery system.In manufacturing business's production process, the time consumed in the course of processing generally only accounts for 5% of whole production process time, and remaining time all consumes in wait, pause.Manufacturing enterprise manages fine or not to logistics progress, is directly connected to the efficiency of whole production process, and this point is particularly evident in mixed-model assembly type manufacturing enterprise.
Material allocation mainly refers to material in integrated material delivery system between links, and Bian carries out the process of transporting with suitable transloading equipment.Material is had a lot from the storage place mode be transported to production line, in assembly enterprise, adopts vehicle conveying to be the mode relatively commonly used.Need to adopt dissimilar vehicle to carry for dissimilar material, also will meet the requirement of assembly planning simultaneously, accept the control of dispatching patcher.Along with the monitoring of the material state such as radio sensing network, RFID and the application of locating and monitoring technology, more and more higher to the requirement of material allocation and vehicle scheduling, adopt automation equipment to be trend of the times.
Utility model content
The purpose of this utility model is to provide a kind of supports WLAN fingerprint location sensing node, and this sensing node is used for travelling bogie, so that Real-time Collection, upload ambient temperature, travelling bogie travel speed and load-carrying data.
In order to solve the problems of the technologies described above, the utility model provides a kind of support WLAN fingerprint location sensing node, comprising: processor module, the WIFI module for fingerprint location be connected with this processor module; Described sensing node be also provided with respectively with the speed measurement module in travelling bogie, temperature detecting module, Weighing module be connected data-interface; Namely described processor module is suitable for speed measurement module, temperature detecting module and Weighing module being obtained by WIFI module travelling bogie speed, ambient temperature, pay load information are sent to server.
Further, described processor module is also connected with touch-screen, and is provided with Camera interface, GPIO port, USBHost interface.
Further, described processor module is also connected with a data memory module.
Another aspect, in order to realize coordinating this sensing node to use, the utility model additionally provides a kind of travelling bogie installing above-mentioned sensing node, described travelling bogie is provided with for testing environment temperature temperature detecting module, for measure dolly load-carrying data Weighing module, for detecting the speed measurement module of the dolly speed of a motor vehicle; Described temperature detecting module, Weighing module, speed measurement module are connected with sensing node.
Further, described speed measurement module adopts three dimension acceleration sensor, and described three dimension acceleration sensor is suitable for the speed of a motor vehicle analog signal gathered to hold with an AD of processor module through the first signal conditioning circuit to be connected.
Further, described Weighing module comprises: shear beam type sensor, and the secondary signal modulate circuit to be connected with this shear beam type sensor, described secondary signal modulate circuit is held with the 2nd AD of processor module and is connected, and wherein said second modulate circuit is suitable for adopting both arms full-bridge type direct-current bridge.
The third aspect, the utility model also provided a kind of WLAN fingerprint location system being applicable to factory's dolly, to realize by sensing node Real-time Collection ambient temperature, dolly travel speed, dolly load-carrying data upload to server, and to be matched with WIFI module by server and realize locating in real time travelling bogie.Described WLAN fingerprint location system comprises: described travelling bogie, and described processor module is connected with server by the WIFI module of fingerprint location, described server is suitable for storing sensing node location finger print data, and by interconnected to position travelling bogie with WIFI module.
The beneficial effects of the utility model are:
(1) sensing node support adopts WLAN fingerprint technique create fingerprint database and carry out tuning on-line, and server obtains sensing node positional information by location algorithm, carries out the online logistics management of intelligent plant.
(2) sensing node can obtain ambient temperature, travelling bogie speed, pay load information, be sent to server by WIFI, can obtain by above-mentioned data dispensing task situation that material allocation vehicle performs and the information such as loading state carries out logistics and distribution management.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the theory diagram of the utility model sensing node.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
Embodiment 1
As shown in Figure 1, the present embodiment 1 provides a kind of support WLAN fingerprint location sensing node, comprising: processor module, the WIFI module for fingerprint location be connected with this processor module; Described sensing node be also provided with respectively with the speed measurement module in travelling bogie, temperature detecting module, Weighing module be connected data-interface; Namely described processor module is suitable for speed measurement module, temperature detecting module and Weighing module being obtained by WIFI module travelling bogie speed, ambient temperature, pay load information are sent to server.
Described processor module is also connected with a data memory module.
Wherein, described processor module is such as but not limited to employing processor S3C6410, and described data memory module such as but not limited to employing K4S561632 chip, and can comprise NandFlash sub module stored (K9F4G08UOA chip).
This sensing node adopts the WIFI module based on Marvel8686 chip to realize the transfer of data of node and server, and completes the fingerprint location based on WLAN on this basis.Marvell8686 chip can support SPI and SDIO two kinds of interfaces and master controller interconnected.SPI interface connects simple, but transmission speed is comparatively slow, is applicable to middle low-speed device and connects.Preferably, the present embodiment adopts transmission speed SDIO protocol interface faster.Processor S3C6410 with two-way SD interface, adopt a road and WIFI module interconnected.This interface is drawn by needle stand.In order to coordinate SDIO to use, this interface further comprises road SPI and two GPIO.
Described processor module is also connected with touch-screen, and is provided with Camera interface, GPIO port, USBHost interface.Concrete, the analog signal that touch-screen inputs is converted to digital quantity by the built-in analog to digital converter of described processor S3C6410.Simultaneously ADC part can with the touch screen controller collaborative work of CPU, complete the measurement to touch-screen absolute address.
Embodiment 2
On embodiment 1 basis, the present embodiment 2 provides a kind of travelling bogie installing described sensing node.
Described travelling bogie is provided with for testing environment temperature temperature detecting module, for measure dolly load-carrying data Weighing module, for detecting the speed measurement module of the dolly speed of a motor vehicle; Described temperature detecting module, Weighing module, speed measurement module are connected with sensing node.
Described temperature detecting module adopts DS18B20 collecting temperature, and concrete, processor module is connected with the DQ bus of DS18B20 by the external current-limiting resistance of pin with sampling functions.
Preferably, described speed measurement module adopts three dimension acceleration sensor, and described three dimension acceleration sensor is suitable for the speed of a motor vehicle analog signal gathered to hold with an AD of processor module through the first signal conditioning circuit to be connected.
Described speed measurement module adopts three dimension acceleration sensor MMA7260 to obtain corresponding analog signal voltage, by obtaining the acceleration that travelling bogie travels after the AD sampling processing that the first signal conditioning circuit (being an in-phase proportion operational amplifier, for improving analog signal voltage and buffer action), processor module are built-in.In the interface circuit of MMA7260 and processor S3C6410, avoid noise problem, three outputs XOUT, YOUT, ZOUT of MMA7260 connect RC filter respectively.
Preferably, described Weighing module comprises: shear beam type sensor, and the secondary signal modulate circuit to be connected with this shear beam type sensor, described secondary signal modulate circuit is held with the 2nd AD of processor module and is connected, and wherein said second modulate circuit is suitable for adopting both arms full-bridge type direct-current bridge.
Weighing module selects the SB series of shear beam sensor of Siemens Company, and the second modulate circuit adopts both arms full-bridge type direct-current bridge, and this circuit can be converted to voltage parameter the resistance parameter that resistance strain-gauge transducer conversion is come.Use full-bridge type direct-current bridge, can eliminate non-linear error, sensitivity simultaneously also significantly improves.
Optionally, all right external video monitoring apparatus of travelling bogie, this video monitoring apparatus is connected with Camera interface, to carry out video monitoring to the driving trace of travelling bogie.
Embodiment 3
In embodiment 1 and embodiment 2 basis, the present embodiment 3 provides a kind of WLAN fingerprint location system being applicable to factory's dolly, comprising:
Described travelling bogie, and described processor module is connected with server by the WIFI module of fingerprint location, described server is suitable for storing sensing node location finger print data, and by interconnected to position travelling bogie with WIFI module.
Concrete, this sensing node is suitable for adopting Android operation system.
Adopt WIFI module to realize fingerprint location and all have detailed discussion in existing document.
Described server is suitable for storing sensing node location finger print data, and by interconnected to position travelling bogie with WIFI module.
Concrete implementation process is as follows:
Fingerprint location is divided into two stages to carry out usually: the first stage is off-line training step, namely locating area arranges several reference points, in each reference point collection from the Received signal strength characteristic parameter data (as signal strength signal intensity) of multiple WIFI access point at this point, and using these parameters together with this point position coordinates as group data stored in database, these group data are exactly a location fingerprint, and this reference point is also referred to as a location fingerprint point; Second stage is the tuning on-line stage, namely that utilize localisation of mobile terminals to detect to receive at anchor point place and with reference to ordering the same signal parameter, then corresponding matching algorithm (respective algorithms is prior art) is adopted to determine the most close with which finger print data in database, then utilize the most close one group or several groups of finger print data respective coordinates to carry out correlation computations, obtain the physical location estimation result of consumer positioning thus.
Positioning client terminal and database initialize client are all mounted on the mobile terminal of Android platform, namely on this sensing node, when off-line sets up fingerprint database, system manager links the network at server place by the WIFI wireless connecting function that sensing node carries, use creation database client to gather WIFI information according to the reference point locations set in each reference point, and be sent to server end together with current position coordinates.During tuning on-line, by and server between socket communication carry out transfer of data, by the periphery WIFI signal intensity scanned by socket connect send to server, server obtains the positional information oriented.
In order to reduce the amount of calculation during estimation of system positioning stage coordinate position, by positioning regional determination a little thus improving the real-time of system, in large-scale intelligent factory, first localizing environment is divided into several regions, when carrying out Region dividing, preferably guarantee that in a region, signal has similar propagation model.First carry out zone location during tuning on-line, and then carry out coordinate position estimation in this regional extent.Thus location fingerprint match time when greatly reducing location, improve location real-time.
In database initialize client software and positioning client terminal software, the parsing of WIFI information and extraction are all the functions first needing to realize.To the operation of WIFI in Android, Android itself provides some relevant kits, specifically comprises following interface:
1、WifiManager
Be used for managing WIFI to connect, the inside has pre-defined many constants, can directly use.
2、ScanResult
This type of is mainly used to describe the WIFI access point that oneself goes out after testing, comprises the MAC Address of access point, the title of access point, authentication, frequency, the information such as signal strength signal intensity.
3、WifiInfo
After WIFI is communicated with, the information of WIFI connection that some have been communicated with can be obtained by this type of, comprise the network connection state of access point, hiding APN, IP address, connection speed, MAC Address, network ID, the information such as signal strength signal intensity.
4、WifiConfiguration
This type of, for the configuration to WIFI network, comprises security setting etc.
In the parsing read functions module of WIFI information, need to use WifiManager and ScanResult two classes, detect WIFI function in Android device by the isWifiEnabled () method in WifiManager class whether to open, and then open this function, then realize the detection of WIFI information in methods such as calling the startScan () in such, getScanResults (), finally the WIFI information detected stored in List<ScanResult>.
In the WIFI information detected, mainly comprise SSID (APN), BSSID (MAC Address), the parameter informations such as level (signal strength signal intensity), frequency (frequency), in this node locating, only APN wherein, MAC Address and signal strength signal intensity need be extracted and send server to for location.
Network in charge assists the establishment of off-line phase fingerprint database and the execution of tuning on-line phase orientation.Open after server, correspondingly can open a watcher thread and carry out socket monitoring, wait for that the finger print information transmission of sensing node client or location are asked clearly.When receiving the finger print information of creation database client, the finger print information received will process by server, do relevant calculating, comprise gaussian filtering, be averaging, ask the AP that each reference point signal is the strongest, then connection data storehouse, and corresponding finger print information stored in fingerprint database, like this, the finger print information collecting work of a reference point just completes.
When the positioning states receiving sensing node positioning client terminal is ready, server reads WIFI information wherein, and reads the finger print information write in advance in fingerprint database, performs the current location that corresponding location algorithm estimates orientation sensing node.Current employing nearest neighbor method positions, the distance L of the method first in the received signal strength vector of computation and measurement gained and database between each vector, then choose the database vector that minimum range is corresponding, export as a result with the position coordinates representated by it.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on specification, must determine its technical scope according to right.
Claims (7)
1. support a WLAN fingerprint location sensing node, it is characterized in that, comprising: processor module, the WIFI module for fingerprint location be connected with this processor module;
Described sensing node be also provided with respectively with the speed measurement module in travelling bogie, temperature detecting module, Weighing module be connected data-interface; Namely
The travelling bogie speed that described processor module is suitable for speed measurement module, temperature detecting module and Weighing module being obtained by WIFI module, ambient temperature, pay load information are sent to server.
2. sensing node as claimed in claim 1, it is characterized in that, described processor module is also connected with touch-screen, and is provided with Camera interface, GPIO port, USBHost interface.
3. sensing node as claimed in claim 2, it is characterized in that, described processor module is also connected with a data memory module.
4. one kind the travelling bogie of sensing node is as claimed in claim 1 installed, it is characterized in that, described travelling bogie is provided with for testing environment temperature temperature detecting module, for measure dolly load-carrying data Weighing module, for detecting the speed measurement module of the dolly speed of a motor vehicle;
Described temperature detecting module, Weighing module, speed measurement module are connected with sensing node.
5. travelling bogie according to claim 4, it is characterized in that, described speed measurement module adopts three dimension acceleration sensor, and described three dimension acceleration sensor is suitable for the speed of a motor vehicle analog signal gathered to hold with an AD of processor module through the first signal conditioning circuit to be connected.
6. travelling bogie according to claim 5, it is characterized in that, described Weighing module comprises: shear beam type sensor, and the secondary signal modulate circuit be connected with this shear beam type sensor, described secondary signal modulate circuit is held with the 2nd AD of processor module and is connected, wherein
Described second modulate circuit is suitable for adopting both arms full-bridge type direct-current bridge.
7. be applicable to a WLAN fingerprint location system for factory's dolly, it is characterized in that, comprising:
Travelling bogie as claimed in claim 4, and described processor module is connected with server by the WIFI module of fingerprint location, described server is suitable for storing sensing node location finger print data, and by interconnected to position travelling bogie with WIFI module.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106802623A (en) * | 2016-12-30 | 2017-06-06 | 天津思博科科技发展有限公司 | Using the production line monitoring system of internet of things sensors |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106802623A (en) * | 2016-12-30 | 2017-06-06 | 天津思博科科技发展有限公司 | Using the production line monitoring system of internet of things sensors |
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