CN208077390U

CN208077390U - A kind of wireless sensor hardware system

Info

Publication number: CN208077390U
Application number: CN201820574371.4U
Authority: CN
Inventors: 叶天凤
Original assignee: Hubei Polytechnic University
Current assignee: Hubei Polytechnic University
Priority date: 2018-04-20
Filing date: 2018-04-20
Publication date: 2018-11-09
Anticipated expiration: 2028-04-20

Abstract

The utility model discloses a kind of wireless sensor hardware systems, including data acquisition module, data reception module, data processing module and power module；Data acquisition module includes the first controller and several sensor nodes, analog-digital converter and the wireless sending module that are electrically connected respectively；Data reception module includes second controller and the wireless receiving module being electrically connected respectively and USB interface chip, and wireless receiving module passes through wireless network communication with wireless sending module；Data processing unit is virtual oscilloscope, for showing and handling the data received.The beneficial effects of the utility model：1, wireless sensor hardware system is easy to use, it is easy to accomplish, it is suitable for communication distance field of less demanding, common environmental data is detected, higher cost performance can be obtained；2, collected data are handled on virtual oscilloscope, easy to operate, the data in the real-time monitoring sensor node region of energy.

Description

A kind of wireless sensor hardware system

Technical field

The utility model is related to technical field of wireless, more particularly, to a kind of wireless sensor hardware system.

Background technology

Wireless sensor network is formed by being deployed in a large amount of microsensor node in monitoring region by radio communication One multi-hop, ad hoc network system, the purpose is to the monitoring objects in collaborative sensing, acquisition and processing network's coverage area Information, and be sent to observer.Wireless sensor network is that a large amount of sensor node is arranged in monitoring region, node Between a kind of network for being made up of wireless telecommunications self-organizing.In modernization industry production, a large amount of environmental characteristic need to be acquired Parameter and user characteristics parameter, acquisition system requirement is easy to operate, and data transmission real-time and accuracy are good.However, existing Data collecting system human-computer interaction it is poor, arrange parameter is complicated, causes the less efficient of data collecting system, real-time poor, no The requirement of modernization high efficiency production can be met.

Utility model content

The purpose of the utility model is to overcome above-mentioned technical deficiencies, propose a kind of wireless sensor hardware system, solve The problem of being referred in above-mentioned background technology.

The technical solution adopted in the utility model provides a kind of wireless sensor hardware system, including：Data acquisition module, Data reception module, data processing module and the power module being connect with the data acquisition module；The data acquisition module Block includes the first controller and several sensor nodes being electrically connected respectively with first controller, analog-to-digital conversion Device and wireless sending module, several described sensor nodes are arranged in the monitoring region of the wireless sensor hardware system, The collected data of sensor node are connect by Zigbee wireless networks with the analog-digital converter, the Zigbee without MAC positioning devices are provided between gauze network and the data acquisition module；The data reception module include second controller, And the wireless receiving module and USB interface chip being electrically connected respectively with the second controller, the wireless receiving module Pass through wireless network communication with the wireless sending module；The data processing unit is virtual oscilloscope, the data processing USB interface is provided on unit, the USB interface is adapted with the USB interface chip；The power module respectively with it is described Data acquisition module, the data reception module and the data processing module are electrically connected.

The beneficial effects of the utility model include：1, wireless sensor hardware system is easy to use, it is easy to accomplish, it is suitable for Communication distance field of less demanding, is detected common environmental data, can obtain higher cost performance；2, collected Data are handled on virtual oscilloscope, easy to operate, the data in the real-time monitoring sensor node region of energy.

Description of the drawings

Fig. 1 is the system module schematic diagram of the utility model；

Fig. 2 is the part-structure schematic diagram of data acquisition module and data reception module in the utility model；

In attached drawing：1, data acquisition module, 2, data reception module, 3, data processing module, 4, power module, 11, One controller, 12, sensor node, 13, analog-digital converter, 14, wireless sending module, 21, second controller, 22, wirelessly connect Receive module, 23, USB interface chip, 31, USB interface.

Specific implementation mode

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing, to this reality It is further elaborated with novel.It should be appreciated that specific embodiment described herein is only used to explain that this practicality is new Type is not used to limit the utility model.

As shown in Figure 1, the technical solution adopted in the utility model provides a kind of wireless sensor hardware system, including data Acquisition module 1, the data reception module 2 being connect with data acquisition module 1, data processing module 3 and power module 4.

Data acquisition module 1 include the first controller 11 and respectively with the first controller 11 be electrically connected several Sensor node 12, analog-digital converter 13 and wireless sending module 14.

Please refer to Fig. 2, the first controller 11 uses 8 microcontroller P89C58X2FN, microcontroller P89C58X2FN Chip have low-power consumption, the advantage of high-performance etc., be suitable for embedded product exploitation.It is provided on first controller 11 more A pin, wherein P1.0, P1.1, P1.2 and P1.3 pin are connect with analog-digital converter 12, P0.0, P0.1, P0.2 and P0.3 Pin is connect with wireless sending module 13.

Several sensor nodes 12 are arranged in the monitoring region of the wireless sensor hardware system, the model in monitoring region In enclosing, the signal of multiple nodes either statically or dynamically is acquired, 12 node of each sensor node can acquire its ambient enviroment Data, such as temperature, humidity, light intensity, vibrations, magnetic field are communicated using wireless multi-hop mode between each sensor node 12, are supervised Measured data carries out wireless communication to form a network system by ZigBee technology, and the purpose is to collaborative sensing, acquisition and processing The information of monitoring object in network's coverage area, user by management of sensor node 12 can to wireless sensor network into Row configuration and management issue monitoring task and collect monitoring data.In this present embodiment, Zigbee network and data acquisition module MAC positioning devices are provided between block 1, and MAC positioning devices connect with ZigBee wireless networks and data acquisition module 1 respectively It connects, which facilitates data acquisition module 1 to user demand position for positioning the setting of ZigBee wireless networks Data acquire.

It is 12 that analog-digital converter 13, which uses MAX1247, precision, and collected data pass through on sensor node 12 Zigbee wireless networks are connect with analog-digital converter 13, and the chip of the analog-digital converter 13 can input four tunnel analog signals simultaneously, And integrated SPI slaves module is provided on its chip, change data is synchronization serial output, is provided in the SPI slave modules Multiple pins, wherein CH0, CH1, CH2 and CH3 pin are analog input interface, and VREF is reference voltage interface, and SCLK is Serial clock input terminal can determine digital-to-analogue conversion in the clock frequency of external clocking mode, the SCLK inputs of serial clock input terminal Speed, CS is chip select input end, and DIN is serial data input, and DOUT is the serial data output terminal after analog-to-digital conversion, and Each bits of serial data is entered locking in SCLK rising edges, and CS chip select inputs end is effective in low level, and otherwise data will not It can be locked input DIN, when CS chip select inputs end is set to high level, DOUT is high-impedance state, serial clock input terminal SCLK, Chip select input end CS, serial data input DIN, serial data output terminal DOUT be separately connected the first controller 11 P1.0, P1.1, P1.2 and P1.3 pin.Microcontroller P89C58X2FN on first controller 11 uses software programming SPI sequential and modulus Converter 13 communicates, and the clock of software programming SPI sequential is inputted by the ends SCLK, realizes the control of the chip in analog-digital converter 13 Word write-in processed and data are read.MAX1247 realizes different analog channels and analog quantity pole by the control word being written from the ends DIN Property etc. relevant informations selection, then the digital quantity of 12 precision from high to low successively step-by-step from the ends DOUT export.

Wireless sending module 14 uses NRF24L01, the ISM frequencies of the chip operation of NRF24L01 in 2.4GHz-2.5GHz Section, has the function of that wireless receiving and transmission data, message transmission rate are up to 2Mbps, has multiple data channel, meet multiple spot The needs of communication.It is provided with integrated SPI interface on the chip of wireless sending module 14, multiple pins are provided on the SPI interface, Wherein CSN is chip select input end, and SCK is input end of clock, and MOSI is serial data input, and MISO exports for serial data End, and CSN, SCK, MOSI and MISO pin are connect with P0.0, P0.1, P0.2, P0.3 on the first controller 11 respectively.First Microcontroller P89C58X2FN on controller 11 is communicated using software programming SPI sequential with wireless sending module 14.This is wirelessly sent out It send the data packet of module 14 that can transmit 32 byte datas every time, is suitble to connect with various MCU, software programming is simple, wireless transmission NRF24L01 in module 14 is used for transmission data.

Data reception module 2 includes second controller 21 and is connect respectively with the wireless of the electric connection of second controller 21 Receive module 22 and USB interface chip 23.

Second controller 21 uses 8 microcontroller P89C58X2FN, the microcontroller P89C58X2FN on second controller 21 It is communicated with the NRF24L01 in wireless sending module 12 using software programming SPI sequential.It is provided on second controller 11 multiple Pin, wherein P1.0, P1.1, P1.2 and P1.3 pin are connect with wireless receiving module 22, and PO, WR, RD and INTO pin are equal It is connect with USB interface chip 23, and PO is data transmission port, WR is to write control port, and RD is Read-write Catrol port, and INTO is External interrupt port.

Wireless receiving module 22 uses NRF24L01, the ISM frequencies of the chip operation of NRF24L01 in 2.4GHz-2.5GHz Section, wireless receiving module 22, by wireless network communication, receive the number that wireless sending module 14 is sent with wireless sending module 14 According to.The operating mode of NRF24L01 in wireless receiving module 22 is to receive data, CSN, SCK on wireless receiving module 22, MOSI and MISO pins are connect with P1.0, P1.1, P1.2, P1.3 on second controller 21 respectively.

USB interface chip 23 uses PDIUSBD12, the chip to have two-way 3 end-point data buffering area, one of end The data buffer zone of point is 64 bytes, is suitable for the big communications applications of volume of transmitted data.Be provided on PDIUSBD12 DO, WR-N, RD-N and INT, N pin, wherein DO is connect with the PO pins on second controller 21, for realizing parallel data transmission, WR-N It is connect with WR, to write control port, RD-N is connect with RD, is Read-write Catrol port, and INT, N and INTO connection are interrupt output Port.

Data processing module 3 is virtual oscilloscope, which is based on the simple of Lab Windows CVI exploitations Virtual Oscilloscope System, the major function of the system are to send order and the collected node data wave of display of gathered data Shape.The virtual oscilloscope can use on PC hosts, and USB interface 31 is provided on PC hosts, the USB interface 31 and USB Interface chip 23 is adapted.

Virtual oscilloscope is provided with data buffer zone, user passes through for showing collected data on virtual oscilloscope The data that data acquisition module 1 obtains are stored in data buffer zone, which is dynamic refresh formula data buffer zone, every time The data of reading are stored in the stem of data buffer zone, tail data will be moved out of data buffer zone.It is set on virtual oscilloscope The brush screen time is set, it is 0.05s to commonly use the brush screen time, that is, will be shown one at interval of the data in 0.05 second data buffering area It is secondary.By interrupt gathered data, the highest sample frequency of wireless sensor hardware system is 13kHz, the transmission of USB interface 31 Speed is 2Mbps, and this system can access multiple sensor nodes 12 simultaneously, to common environmental data, such as temperature, humidity, light By force, magnetic field etc. is detected, and fully meets the application requirement of closely monitoring.

Power module 4 is electrically connected with data acquisition module 1, data reception module 2 and data processing module 3 respectively, is used In the power supply for providing the wireless sensor hardware system.

In above-mentioned technical proposal, the operation principle of the utility model：Data acquisition module 1 acquires 30 byte datas every time, Then data packing is carried out, it is exactly the packet header that 2 bytes are added to data packet to be packaged, and the first byte of 2 byte packet header indicates node Address, the serial number of secondary byte representation data packet write the data packet wireless data and are sent to nothing after forming the data packet of 32 bytes Line sending module 13 carries out the upload of wireless data, and the wireless receiving module 22 in data reception module 2 receives 32 byte numbers It after packet, continues waiting for receiving next 32 byte data packet, after receiving 2 data packet totally 64 bytes, by two data Packet is transferred to USB interface chip PDIUSBD12 by parallel port, can effectively use 64 byte buffers of PDIUSBD12 in this way Data packet is transmitted further to virtual oscilloscope by area, USB interface, and data show and handle in virtual oscilloscope.This system can be same When access multiple sensor nodes 12, to common environmental data, such as temperature, humidity, light intensity, magnetic field are detected, completely Meet the application requirement of closely monitoring.

Compared with prior art, the beneficial effects of the utility model include：1, wireless sensor hardware system is easy to use, It is easily achieved, is suitable for communication distance field of less demanding, common environmental data is detected, higher property can be obtained Valence ratio；2, collected data are handled on virtual oscilloscope, easy to operate, the number in the real-time monitoring sensor node region of energy According to.

Specific embodiment of the present utility model described above does not constitute the restriction to scope of protection of the utility model. The various other corresponding changes and deformation that any technical concept according to the present utility model is made, should be included in this practicality In novel scope of the claims.

Claims

1. a kind of wireless sensor hardware system, which is characterized in that including：Data acquisition module and the data acquisition module Data reception module, data processing module and the power module of connection；The data acquisition module include the first controller, And several sensor nodes, analog-digital converter and the wireless sending module being electrically connected respectively with first controller, Several described sensor nodes are arranged in the monitoring region of the wireless sensor hardware system, the sensor node acquisition The data arrived are connect by Zigbee wireless networks with the analog-digital converter, and the Zigbee wireless networks are adopted with the data It is provided with MAC positioning devices between collection module；The data reception module includes second controller and respectively with described second The wireless receiving module and USB interface chip that controller is electrically connected, the wireless receiving module and the wireless sending module Pass through wireless network communication；The data processing unit is virtual oscilloscope, and being provided with USB on the data processing unit connects Mouthful, the USB interface is adapted with the USB interface chip；The power module respectively with the data acquisition module, described Data reception module and the data processing module are electrically connected.

2. a kind of wireless sensor hardware system as described in claim 1, which is characterized in that first controller and described Second controller is microcontroller P89C58X2FN, and multiple pins are provided on the microcontroller P89C58X2FN.

3. a kind of wireless sensor hardware system as described in claim 1, which is characterized in that the sensor node is for adopting Collect the data of its ambient enviroment.

4. a kind of wireless sensor hardware system as described in claim 1, which is characterized in that the analog-digital converter is The precision of MAX1247, the MAX1247 are 12, and the chip of the analog-digital converter can input four tunnel analog signals, institute simultaneously It states and is provided with integrated SPI slaves module on the chip of analog-digital converter.

5. a kind of wireless sensor hardware system as described in claim 1, which is characterized in that the wireless sending module and institute It is NRF24L01 to state wireless sending module, and the chip operation of the NRF24L01 is in the ISM band of 2.4GHz-2.5GHz, institute The chip for stating NRF24L01 has multiple data channel.

6. a kind of wireless sensor hardware system as described in claim 1, which is characterized in that the virtual oscilloscope be based on The simple virtual oscilloscope of Lab Windows CVI exploitations, the USB interface chip are PDIUSBD12.