CN203149815U - Narrow-band small- and mid-scale wireless data acquiring system - Google Patents
Narrow-band small- and mid-scale wireless data acquiring system Download PDFInfo
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- CN203149815U CN203149815U CN 201320193685 CN201320193685U CN203149815U CN 203149815 U CN203149815 U CN 203149815U CN 201320193685 CN201320193685 CN 201320193685 CN 201320193685 U CN201320193685 U CN 201320193685U CN 203149815 U CN203149815 U CN 203149815U
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Abstract
The utility model discloses a narrow-band small- and mid-scale wireless data acquiring system. The narrow-band small- and mid-scale wireless data acquiring system comprises terminals and a network server which are internally provided with 2.4G nRF24L01 wireless modules; the terminals and the network server are in wireless communication through the internally arranged 2.4G nRF24L01 wireless modules; and the 2.4G nRF24L01 wireless module of the network server is preferentially an NRF24L01P+PA+LNA wireless module. The narrow-band small- and mid-scale wireless data acquiring system has the advantages that the low-cost 2.4G nRF24L01 wireless modules are used for networking, so that the cost of an established wireless network is greatly reduced; a networking protocol is a self-defined protocol, so that the high cutting performance is brought, and a developer can realize the good matching with a target product while considering a network system; a USB HID (Universal Serial Bus) (Human Interface Device) equipment interface technology is adopted and used for providing a connecting interface for a star network and a PC (Personal Computer) machine, and thus the plug and play advantage is realized while a network is constructed; and in addition, relevant data in an equipment network can be obtained through a USB interface at the network server end, and thus the communication and control regarding the equipment in the Internet can be realized.
Description
[technical field]
The utility model relates to the wireless data acquisition network field, especially is applicable among a small circle, wireless data acquisition system among a small circle in the arrowband of low cost, narrow band data collection, control and transmission.
[background technology]
At present, general 2.4G wireless networking scheme is for adopting bluetooth, wifi and zigbee.Bluetooth is suitable for the short-distance wireless exchanges data, generally is used in mobile phone, in the equipment such as earphone and mouse.Wifi is suitable for the high-speed radio Access Network, generally uses in WLAN (wireless local area network).Zigbee then is suitable for Industry Control to be developed to wireless networking.Though, above-mentioned three kinds of wireless networking schemes have written standard to carry out reference and stable wireless module is developed, the employing difficulty is less, but because the overall device cost of networking is higher, power consumption is bigger, is not desirable solution for low-end market and narrow band data wireless networking.
[utility model content]
The purpose of this utility model is at the above 2.4G wireless communication network scheme in the weak point aspect low-end market and the narrow band data wireless networking, adopt 2.4G NRF24L01 module and self-defined procotol to realize in the arrowband of wireless networking wireless data acquisition system among a small circle, under the prerequisite that satisfies the wireless networking requirement fully, to overcome wireless networking scheme cost height such as bluetooth, wifi and zigbee, shortcoming that power consumption is big.
To achieve these goals, the utility model is achieved in that in the arrowband wireless data acquisition system among a small circle, comprise terminal and the webserver, 2.4G nRF24L01 wireless module all is set in described terminal and the webserver, and terminal and the webserver carry out radio communication by the interior 2.4G nRF24L01 wireless module of establishing.Can be configured and realize data communication to 2.4G nRF24L01 wireless module by processing unit, simultaneously data link layer protocol be expressed in hardware bottom layer; By self-defining communication protocol, realize one stable one main many from the star network system, can satisfy among a small circle, the needs of the data acquisition of multinode network.
The preferred NRF24L01P+PA+LNA wireless module of 2.4G nRF24L01 wireless module that the described webserver arranges, wireless communication distance is unlimited when being with antenna to overcome, and the defective that error rate is high is convenient to set up star network simultaneously.
The 2.4G nRF24L01 wireless module of the described webserver is arranged in the USB device, and USB device is connected by USB interface with the webserver, and encrypting module also is set in the described USB device.The webserver adopts processing unit to be connected with 2.4G nRF24L01 wireless module, adopts the mode and the computing machine that are configured to USB HID equipment to communicate on the processing unit, thereby realizes that the portable access of wireless network and free drive move characteristics such as installation; By the characteristics of USB technology plug and play, make wireless network have the characteristics of portable building network node in addition, and can realize device network data and remote internet are communicated control by host computer.
The utility model is aimed at the network edition design of antitheft mobile phone device, and specific requirement realizes command transfer, the configuration transmission, and file transfer and equipment alarm are uploaded four big basic functions; Need to realize a spot of data double-way transmission on the network level, the network coverage ability in the 50-100m scope, the wireless network of skinny device number is set up function.Consider the demand of product, the wireless networking scheme has been abandoned bluetooth, wifi, the classical wireless network schemes of 2.4G such as zigbee, and adopt " based on 2.4G NRF24L01 module+self-defined wireless networking agreement " to realize, overcome above scheme equipment cost height, inferior position that power consumption is big.
Compared with prior art, the utility model has following advantage:
1. by 2.4G nRF24L01 wireless module networking cheaply, the wireless network cost of setting up reduces greatly, and because procotol is custom protocol, have good clipping function, the developer can better realize the matched well with target product when considering network system.
2. use USB HID equipment interface technology to provide connecting interface as star network and PC, the advantage that has plug and play when making network construction, and can the USB interface by network server end obtain the related data in the device network, communicate and control with equipment on the internet.
[description of drawings]
Fig. 1 is the networking frame figure of wireless data acquisition system among a small circle in the utility model arrowband;
Fig. 2 is the IP planning chart of wireless data acquisition system among a small circle in the utility model arrowband.
[embodiment]
Below in conjunction with the drawings and specific embodiments the utility model is described in detail explanation.
Wireless data acquisition system among a small circle in the arrowband, as shown in Figure 1, it comprises terminal and the webserver, 2.4G nRF24L01 wireless module is set in the described terminal, the described webserver also arranges 2.4G nRF24L01 wireless module, and terminal and the webserver carry out radio communication by the interior 2.4G nRF24L01 wireless module of establishing.By processing unit 2.4G nRF24L01 wireless module is configured and realizes data communication, data link layer protocol is expressed in hardware bottom layer; By self-defining communication protocol, realize one stable one main many from the star network system, can satisfy among a small circle, the needs of the data acquisition of multinode network.The preferred NRF24L01P+PA+LNA wireless module of 2.4G nRF24L01 wireless module that the described webserver arranges, it is limited to overcome when not being with antenna wireless communication distance whereby, and the defective that error rate is high is convenient to set up star network simultaneously.The 2.4G nRF24L01 wireless module of the described webserver is arranged in the USB device, and described USB device is connected by USB interface with the webserver, and encrypting module also is set in described USB device, makes it that network encryption function be arranged.Described encrypting module can be encryption lock (softdog).The webserver adopts processing unit to be connected with 2.4G nRF24L01 wireless module, adopts the mode and the computing machine that are configured to USB HID equipment to communicate on the processing unit, thereby realizes that the portable access of wireless network and free drive move characteristics such as installation; By the characteristics of the plug and play of USB technology, make wireless network have the characteristics of portable building network node in addition, and can realize device network data and remote internet are communicated control by host computer.
The 2.4G nRF24L01 wireless module that the utility model uses is operated in the 2.4G whole world and opens ISM band, exempts from licence and uses, and adopts the GFSK modulation, and maximum operation frequency 2Mbps has transmission and stablizes anti-interference strong performance.In addition, 2.4G nRF24L01 wireless module provides SPI interface, can be connected with the low-speed processing unit easily, is convenient to exploitation.
It is processing unit that the USB device end adopts the STM32 chip, and wherein the encryption lock end adopts new Tang 120 chips, and 3 of SPI function pins and 3 good controls that just can realize wireless module of GPIO function pin in the sheet only need be provided.
The utility model scheme is based on the protocol section of the characteristic building network of NRF24L01 module.According to the transmission feature of NRF24L01 module, with the logical partitioning as network of preceding 3 bytes of the effective address of 5 bytes in the module channels 0, in order to avoid that adjacent networks may occur overlapping with disturb.Other 2 bytes are respectively in order to distinguish network belonging function and differentiation equipment and the webserver.Network function is divided into four basic transmission modes, gives four kinds of different logical channels respectively, contingent maloperation in the time of can avoiding the operation of equipment difference in functionality.In the device address planning, the webserver adopts fixed address, and terminal adopts the mode of being progressively increased one by one by equipment 0 to set the address, in the hope of being with good expansibility and the advantage of easy programming.In data transmission, according to the transmission feature of NRF24L01 module, data transmission is only carried out point-to-point transmission, and only there is a communication node in each communication in logic.The planning of the wireless transmission group network network address as shown in Figure 2.
The utility model is combined network center's node with the USB technology, adopt new Tang 120 single chip solution, has designed USB wireless encryption dog, has realized network equipment plug and play, portable establishment WLAN (wireless local area network).
The SPI function control wireless module NRF24L01 that USB wireless encryption dog is adopted new Tang 120 built-in chip types adopts the USB controller programming of built-in chip type to realize with equipment simulating being USB HID equipment, thereby has guaranteed plug and pull and the moving product performance of installing of free drive.USB HID device transmission belongs to USB device at a slow speed, but can bear the transmission of data in wireless network of the present utility model fully.And it is convenient that it has exploitation, transmits stable good advantage.And have excellent interface and stable transmission with upper computer software, the data in the wireless network can be offered easily the upper computer software operation, communicate control with the internet then.
Although the utility model is to describe with reference to specific embodiment, this description and not meaning that is construed as limiting the utility model.With reference to description of the present utility model, other of the disclosed embodiments change, and all can expect for those skilled in the art, and this variation should belong in the affiliated claim institute restricted portion.
Claims (3)
1. wireless data acquisition system among a small circle in the arrowband, comprise terminal and the webserver, it is characterized in that, 2.4G nRF24L01 wireless module all is set in described terminal and the webserver, terminal and the webserver carry out radio communication by the interior 2.4G nRF24L01 wireless module of establishing.
2. according to wireless data acquisition system among a small circle in the described arrowband of claim 1, it is characterized in that the 2.4G nRF24L01 wireless module of described webserver setting is selected the NRF24L01P+PA+LNA wireless module for use.
3. according to wireless data acquisition system among a small circle in the described arrowband of claim 2, it is characterized in that, the 2.4G nRF24L01 wireless module of the described webserver is arranged in the USB device, and USB device is connected by USB interface with the webserver, and encrypting module also is set in the described USB device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320193685 CN203149815U (en) | 2013-04-16 | 2013-04-16 | Narrow-band small- and mid-scale wireless data acquiring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320193685 CN203149815U (en) | 2013-04-16 | 2013-04-16 | Narrow-band small- and mid-scale wireless data acquiring system |
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| Publication Number | Publication Date |
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| CN203149815U true CN203149815U (en) | 2013-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320193685 Expired - Fee Related CN203149815U (en) | 2013-04-16 | 2013-04-16 | Narrow-band small- and mid-scale wireless data acquiring system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104363562A (en) * | 2014-10-28 | 2015-02-18 | 北京大学软件与微电子学院无锡产学研合作教育基地 | RFID (radio frequency identification) indoor positioning system and method of narrow-band Mesh network |
| CN107015057A (en) * | 2017-04-07 | 2017-08-04 | 南京邮电大学 | 2.4GHz frequency spectrum monitoring systems based on PC serial communication |
-
2013
- 2013-04-16 CN CN 201320193685 patent/CN203149815U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104363562A (en) * | 2014-10-28 | 2015-02-18 | 北京大学软件与微电子学院无锡产学研合作教育基地 | RFID (radio frequency identification) indoor positioning system and method of narrow-band Mesh network |
| CN107015057A (en) * | 2017-04-07 | 2017-08-04 | 南京邮电大学 | 2.4GHz frequency spectrum monitoring systems based on PC serial communication |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20170416 |
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| CF01 | Termination of patent right due to non-payment of annual fee |