CN206807788U - A kind of temperature monitoring system based on radio sensing network - Google Patents

Abstract

The utility model discloses a kind of temperature monitoring system based on radio sensing network, including monitoring host computer；Also include the Medial Convergence node being connected with monitoring host computer signal, several two level aggregation nodes being connected with Medial Convergence node signal, wherein, each two level aggregation node is connected with several data acquisition node signals；The Medial Convergence node includes PC, the emulator being connected with PC signal, the first wireless communication module being connected with emulator signal, the serial ports modular converter being connected with the first radio communication mold block signal, and the serial ports modular converter is connected with PC signal；First wireless communication module is connected with two level aggregation node signal, and the PC is connected with monitoring host computer signal.Monitoring temperature area, speeding up data transmission efficiency can be increased by the utility model, effectively strengthen data management.

Description

A kind of temperature monitoring system based on radio sensing network

Technical field

It the utility model is related to radio sensing network field, more particularly to a kind of monitoring temperature based on radio sensing network System.

Background technology

Wireless sensor network (WSN) technological incorporation wireless communication technology, sensor technology and signal processing technology, it is One trend of contemporary science and technology development.It has the advantages that rapidity, sensitivity so that it can be in real time by the letter of controlled device Breath is sent to Surveillance center and transmitted in time to controlled device and instructed, and realizes the monitoring and control to controlled device.

At present, one of important indicator that temperature is all used as by various fields, and to its precise requirements more and more higher.Pass Wired temp measuring system of system not only connects up trouble, and is easily influenceed to produce problem of aging by factors such as environment so that system Life-span and reliability are difficult to meet to require, so intelligent radio temp measuring system is increasingly favored by people, have low-power consumption, The characteristics of low cost, distributed and self-organizing etc., it collects sensor technology, micro electro mechanical system (MEMS) technology, embedding assembly technology, nothing Line communication technology and distributed information processing have many applications in one in Internet of Things Construction Party face.It is but existing The collection of wireless temperature sensing network information can be caused to cover face it is not big enough, it is impossible to meet increasingly complicated monitoring temperature demand.Meanwhile In terms of data monitoring management, the wireless temperature sensing network of prior art is typically all entered using each branch node with host node The two-stage topological structure of row data interaction, it is unfavorable for the high efficiency of data transfer, is also unfavorable for data management.

Utility model content

The purpose of this utility model is to provide a kind of temperature monitoring system based on radio sensing network, can increase temperature Degree monitoring area, speeding up data transmission efficiency, effectively strengthen data management.

To realize the purpose, there is provided a kind of temperature monitoring system based on radio sensing network, including monitoring host computer；Also Including the Medial Convergence node being connected with monitoring host computer signal, several two levels being connected with Medial Convergence node signal convergence section Point, wherein, each two level aggregation node is connected with several data acquisition node signals；The Medial Convergence node includes PC Machine, the emulator being connected with PC signal, the first wireless communication module being connected with emulator signal, with the first radio communication mold The serial ports modular converter of block signal connection, the serial ports modular converter are connected with PC signal；First wireless communication module It is connected with two level aggregation node signal, the PC is connected with monitoring host computer signal.

Preferably, the two level aggregation node includes being used to believe with the first wireless communication module and corresponding data acquisition node The second wireless communication module, the second display and second source mould that are connected with the second radio communication mold block signal of number connection Block.

Preferably, the data acquisition node includes being used for the 3rd channel radio being connected with the second radio communication mold block signal Believe module, the 3rd display, the 3rd power module and the signal processing module being connected with the 3rd radio communication mold block signal, with letter The sensor for measuring temperature of number processing module signal connection.

Preferably, the signal processing module includes the amplifying circuit of signal connection, filter circuit and A/D conversion electricity successively Road, the amplifying circuit are connected with sensor for measuring temperature signal, the A/D change-over circuits and the 3rd radio communication mold block signal Connection.

Preferably, the amplifying circuit is LM324 operational amplifiers, the A/D change-over circuits by ADC0809 chips or PCF8591 chips are formed.

Preferably, the Medial Convergence node also include the first display for being connected with the first radio communication mold block signal and First power module.

Preferably, monitoring host computer is industrial computer.

Preferably, the first wireless communication module, the second wireless communication module and the 3rd wireless communication module within the system Equal CC2430 chips.

Preferably, the sensor for measuring temperature is PT100 temperature sensors.

Preferably, the serial ports modular converter be serial port transform USB module and serial ports modular converter be FT232RL chips or PL2303 chips or CH340 chips.

Compared with prior art, its advantage is the utility model：

The utility model is connected and every by setting Medial Convergence node with several two level aggregation node wireless signals Individual two level aggregation node is connected with several data acquisition node wireless signals, can be increased monitoring temperature area, be accelerated data Efficiency of transmission, effectively strengthen data management.By in Medial Convergence node, each two level aggregation node and each in the utility model Data acquisition node sets display, the detection at the scene of can effectively improving and the intuitive of control.In the utility model Selection PT100 temperature sensors can effectively improve accuracy of detection, stability, antijamming capability.

Brief description of the drawings

Fig. 1 is the utility model overall structure block diagram；

Fig. 2 is the utility model Medial Convergence node structure block diagram；

Fig. 3 is two level aggregation node structured flowchart in the utility model；

Fig. 4 is data acquisition node structured flowchart in the utility model；

Fig. 5 is each wireless communication module structural representation in the utility model；

Fig. 6 is signal processing module part-structure schematic diagram in the utility model.

Embodiment

With reference to embodiment, the utility model will be further described, but does not form to of the present utility model any Limitation, the modification of any limited number of time made in the utility model claims scope, still in claim of the present utility model In the range of.

As Figure 1-Figure 4, the utility model provides a kind of temperature monitoring system based on radio sensing network, including Monitoring host computer 1；The Medial Convergence node 2 that also includes being connected with the signal of monitoring host computer 1, it is connected with the signal of Medial Convergence node 2 Several two level aggregation nodes 3, wherein, each two level aggregation node 3 is connected with several signals of data acquisition node 4；Center Aggregation node 2 includes PC 21, the emulator 22 being connected with the signal of PC 21, the first channel radio being connected with the signal of emulator 22 Believe module 23, the serial ports modular converter 25 being connected with the signal of the first wireless communication module 23, serial ports modular converter 25 and PC 21 Signal connects；First wireless communication module 23 is connected with the signal of two level aggregation node 3, and PC 21 is connected with the signal of monitoring host computer 1. Medial Convergence node 2 also includes the first display 24 and the first power module being connected with the signal of the first wireless communication module 23 26.Serial ports modular converter 25 be serial port transform USB module and serial ports modular converter 25 be FT232RL chips or PL2303 chips or CH340 chips.Monitoring host computer 1 is industrial computer.

In the present embodiment, each data acquisition node 4 performs the function to field data collection.Each two level collects node 3 Also it is in center in addition to the network for being responsible for oneself building to collect in the network coverage of node foundation, it will realize temperature signal Measurement, data processing and the function of transmitting metrical information.Center collects node 2 and is not only responsible for building and safeguarding whole network, and And arrange packing after two level collects the field data that the transmission of node 3 comes and adds address and check code and issue monitoring host computer 1, simultaneously Can also transmitting, monitoring main frame 1 the function such as control instruction, center collects node 2 and utilizes electrical level transferring chip with monitoring host computer 1 Realized and communicated by RS232.

Two level aggregation node 3 includes being used to be connected with the first wireless communication module 23 and the signal of corresponding data acquisition node 4 The second wireless communication module 31, the second display 32 that is connected with the signal of the second wireless communication module 31 and second source module 33。

Data acquisition node 4 includes being used for the 3rd wireless communication module being connected with the signal of the second wireless communication module 31 41, the 3rd display 42, the 3rd power module 43 and the signal processing module 44 being connected with the signal of the 3rd wireless communication module 41, The sensor for measuring temperature 45 being connected with the signal of signal processing module 44.Sensor for measuring temperature 45 is PT100 temperature sensors.

In the present embodiment, PT100 temperature sensors are a kind of wide variety of temperature elements, in -50 DEG C of -600 DEG C of scopes It is interior that there is other any unrivaled advantages of sensor, including high accuracy, stability, strong antijamming capability etc..

As shown in fig. 6, signal processing module 44 includes the amplifying circuit of signal connection, filter circuit and A/D conversions successively Circuit, amplifying circuit are connected with the signal of sensor for measuring temperature 45, and A/D change-over circuits and the signal of the 3rd wireless communication module 41 connect Connect.Amplifying circuit is LM324 operational amplifiers, and A/D change-over circuits are made up of ADC0809 chips or PCF8591 chips.

As shown in fig. 6, in the present embodiment, using TL431 and potentiometer VR1 regulation productions in the circuit of signal processing module 44 Raw 4.096V reference power source, using R1, R2, VR2, PT100 forms measuring bridge, and wherein R1=R2, VR2 are 100 Ω accurate Resistance.When the resistance value of PT100 temperature sensors and unequal VR2 resistance value, electric bridge exports the pressure difference of a millivolt level Signal, this pressure difference signal export the voltage signal of desired size after amplifier LM324 amplifications, after electric capacity C2 filtering, The signal can directly connect A/D convertor circuit.R3=R4 in amplifying circuit, R5=R6, multiplication factor R5/R3.Amplifier is using single 5V power supply.

The first wireless communication module 23, the second wireless communication module 31 and the 3rd wireless communication module 41 are equal within the system CC2430 chips, its circuit theory diagrams are as shown in Figure 5.

In the present embodiment, CC2430 chips can realize that signal transacting and signal are infinitely sent.CC2430 is one true Positive System on Chip/SoC CMOS solutions.The solution can improve radio transmission performance and meet based on ZigBee 2.4GHz ISM band applications, and to low cost, the requirement of low-power consumption.It combines a high-performance 2.4GHz DSSS (direct sequence Row spread spectrum) RF transceiver core and compact efficient 8051 controller of a technical grade；CC2430 design combines 8Kbyte RAM and powerful peripheral module, and have 3 kinds of different versions, so as to according to different flash memory spaces 32kByte, 64kByte and 128kByte optimize the combination of complexity and cost.

In the present embodiment, system network architecture is level, is top with monitoring host computer 1, in being followed successively by downwards Node 2 is collected in centre, two level collects node 3 and data acquisition node 4.Monitoring host computer 1 is the system " headquarter ", is not only monitored The scene of and transmittable control instruction, while also manage whole network system；Collect node 2 and be mainly responsible for two level remittance in center Collect the wireless network address distribution and the reception of information of node 3, monitoring host computer 1 will be transferred to after data processing, while also safeguard The normal operation of network；Two level collects the data that node 3 is mainly responsible for gathering corresponding each data acquisition node 4 by instruction Receive, collect node 2 to center by wireless network transmissions after preliminary treatment, while pass to corresponding each data acquisition node 4 Send the instruction of monitoring host computer 1；Data acquisition node 4 is mainly responsible for the temperature information of collection site and passes it by wireless network Two level corresponding to being defeated by collects the instruction that node 3 while executable monitoring host computer 1 are sent.

The operation principle of the present embodiment：During work, the signal processing module 44 of each data acquisition node 4 is by PT100 temperature Sensor output signal is transferred to CC2430 chips by amplifying, filter, after A/D conversion process, so as to realize adopting for information Collection；Then the signal of the collection of each data acquisition node 4 is sent to corresponding two level aggregation node 3, and each two level aggregation node 3 is sent out again Give Medial Convergence node 2；The signal of reception is sent to monitoring host computer 1 by Medial Convergence node 2, and monitoring host computer 1 is according to reception Signal send control signals to Medial Convergence node 2, then have Medial Convergence node 2 that control signal is distributed into corresponding two level Collect node 3, finally by two level collect node 3 by control signal be distributed to corresponding to data acquisition node 4 make it is corresponding anti- Should.

Monitoring temperature area, speeding up data transmission efficiency can be increased by the present embodiment, effectively strengthen data management.

It the above is only preferred embodiment of the present utility model, it should be pointed out that for those skilled in the art, On the premise of not departing from the utility model structure, several modifications and improvements can also be made, these are new all without this practicality is influenceed The effect and practical applicability that type is implemented.

Claims (10)

1. a kind of temperature monitoring system based on radio sensing network, including monitoring host computer (1)；It is characterized in that：Also include with The Medial Convergence node (2) of monitoring host computer (1) signal connection, several two levels being connected with Medial Convergence node (2) signal are converged Poly- node (3), wherein, each two level aggregation node (3) is connected with several data acquisition node (4) signals；Converge in the center Poly- node (2) includes PC (21), the emulator (22) being connected with PC (21) signal, be connected with emulator (22) signal One wireless communication module (23), the serial ports modular converter (25) being connected with the first wireless communication module (23) signal, the serial ports Modular converter (25) is connected with PC (21) signal；First wireless communication module (23) and two level aggregation node (3) signal Connection, the PC (21) are connected with monitoring host computer (1) signal.

A kind of 2. temperature monitoring system based on radio sensing network according to claim 1, it is characterised in that：Described two Level aggregation node (3) includes being used for the be connected with the first wireless communication module (23) and corresponding data acquisition node (4) signal Two wireless communication modules (31), the second display (32) and second source mould being connected with the second wireless communication module (31) signal Block (33).

A kind of 3. temperature monitoring system based on radio sensing network according to claim 2, it is characterised in that：The number Include being used for the 3rd wireless communication module (41) being connected with the second wireless communication module (31) signal according to acquisition node (4), with The 3rd display (42), the 3rd power module (43) and the signal processing module of 3rd wireless communication module (41) signal connection (44) sensor for measuring temperature (45), being connected with signal processing module (44) signal.

A kind of 4. temperature monitoring system based on radio sensing network according to claim 3, it is characterised in that：The letter Number processing module (44) includes amplifying circuit, filter circuit and the A/D change-over circuits of signal connection successively, the amplifying circuit with Sensor for measuring temperature (45) signal is connected, and the A/D change-over circuits are connected with the 3rd wireless communication module (41) signal.

A kind of 5. temperature monitoring system based on radio sensing network according to claim 4, it is characterised in that：It is described to put Big circuit is LM324 operational amplifiers, and the A/D change-over circuits are made up of ADC0809 chips or PCF8591 chips.

A kind of 6. temperature monitoring system based on radio sensing network according to claim 1, it is characterised in that：In described Centre aggregation node (2) also includes the first display (24) and the first power supply mould being connected with the first wireless communication module (23) signal Block (26).

A kind of 7. temperature monitoring system based on radio sensing network according to claim 1, it is characterised in that：Monitoring master Machine (1) is industrial computer.

A kind of 8. temperature monitoring system based on radio sensing network according to claim 3, it is characterised in that：It is at this First wireless communication module (23), the second wireless communication module (31) and the 3rd wireless communication module (41) CC2430 cores in system Piece.

A kind of 9. temperature monitoring system based on radio sensing network according to claim 3, it is characterised in that：The temperature It is PT100 temperature sensors to spend measurement sensor (45).

A kind of 10. temperature monitoring system based on radio sensing network according to claim 1, it is characterised in that：It is described Serial ports modular converter (25) is serial port transform USB module and serial ports modular converter (25) is FT232RL chips or PL2303 chips Or CH340 chips.