CN201188108Y

CN201188108Y - Detector with network interface for wind direction and wind speed

Info

Publication number: CN201188108Y
Application number: CNU2008200577983U
Authority: CN
Inventors: 龚兆岗; 甘江英
Original assignee: SHANGHAI BRIGHT ELECTRONIC SYSTEMS Ltd; Shanghai Maritime University
Current assignee: SHANGHAI BRIGHT ELECTRONIC SYSTEMS Ltd; Shanghai Maritime University
Priority date: 2008-04-28
Filing date: 2008-04-28
Publication date: 2009-01-28
Anticipated expiration: 2018-04-28

Abstract

A wind direction and speed surveymeter with a network interface relates to a detecting instrument for measuring the wind direction and speed on the highway, in particular to a wind direction and speed surveymeter of an embedded type network communication interface based on a TCP/IP. The information collected by a wind direction and speed sensor is converted into a digital quantity signal and transmitted to an ethernet, thereby the wind direction and speed surveymeter with a network interface is taken as a simple and easy network terminal. A very long communication line is not required to be laid for transmitting the collected data to a remotely located data terminal; a PC machine is also not required to be especially arranged so as to realize the line telephone data transmission or the standard RS_232 and RS_485 bus data transmission. The monolithic processor provided with an A/D converting module is adopted. By adopting the monolithic processor, one chip can be reduced, therefore, the circuit connecting line can be reduced, the stability can be enhanced and the interface can be reduced.

Description

Wind direction and wind velocity detector with network interface

Technical field

The utility model relates to the detecting instrument that a kind of highway is measured wind direction and wind velocity, is specially a kind of wind direction and wind velocity detector that has based on the built-in network communication interface of TCP/IP.

Background technology

Existing highway wind direction and wind velocity detector, data transmission method have the multichannel data transmission, as ultrashort wave (USW) data transmission, wire telephony data transmission, standard RS_232 and the transmission of RS_485 bus data.

The ultrashort wave (USW) data transmission, transmission range is limited, is interfered poor stability easily.

Wire telephony data transmission, standard RS_232 and the transmission of RS_485 bus data need be disposed PC when carrying out long-distance transmissions, equipment is relatively more expensive, and it is big to take up room, and want it higher to environment.

Along with Ethernet is universal day by day, its coverage is increasing now, for a kind of highway wind direction and wind velocity detector that utilizes Ethernet to carry out data transmission provides condition.

The utility model content

The purpose of this utility model is to provide a kind of wind direction and wind velocity detector with network interface, have make simple, cost is low, the characteristics of volume trifle save space, information transmission distance and dependable performance.

The problem that the utility model solved can realize by the following technical solutions:

Wind direction and wind velocity detector with network interface, comprise wind direction and wind velocity sensor, A/D modular converter, it is characterized in that, also comprise microprocessor and ethernet interface module, wind direction and wind velocity sensor connects the A/D modular converter, simulating signal is converted into digital signal and passes to microprocessor, and the data transfer after microprocessor will be handled is given ethernet interface module, and then imports Ethernet into.

Described microprocessor is a single-chip microcomputer.

Described ethernet interface module adopts the ICP/IP protocol communication.

The above-mentioned wind direction and wind velocity detector with network interface is converted into digital quantity signal with the information of wind direction and wind velocity sensor collection, and imports Ethernet into, and the wind direction and wind velocity detector that therefore has network interface can be considered an easy network terminal.

So just do not need to lay very long communication line for the data transfer that will collect to data terminal at a distance again; Need PC be set specially in order to realize the transmission of wire telephony data transmission or standard RS_232 and RS_485 bus data yet.

So above-mentioned design has significantly reduced the construction cost of wind direction and wind velocity test item, has reduced difficulty of construction, has shortened the engineering time.

Described ethernet interface module comprises ethernet control chip, separation filter, Ethernet RJ-45 interface, ethernet control chip receives control signal and the data that microprocessor transmits, ethernet control chip is under the control of microprocessor, data are handled, and the data after will handling are imported separation filter into, separation filter to data-signal isolate with filtering after, import data-signal into Ethernet RJ-45 interface, Ethernet RJ-45 interface imports data-signal into Ethernet.

Though the process of only the ethernet interface module data being exported in the above-mentioned design is described, but the obvious both control command sent of receiving remote control end of the structure of above-mentioned ethernet interface module but, also can feed back to remote control terminal to current working state, to realize from the adjusting and the control of remote control terminal control to field device.

Described single-chip microcomputer is the single-chip microcomputer that carries the A/D modular converter.

Adopt this single-chip microcomputer can reduce by a chip, thereby can reduce circuit connection, increase stability and reduce interference.

Description of drawings

Fig. 1 is an one-piece construction schematic block diagram of the present utility model.

Fig. 2 is signals collecting of the present utility model and treatment circuit schematic diagram.

Fig. 3 is Network Interface Module circuit theory diagrams of the present utility model.

Embodiment

For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.

With reference to figure 1, have the wind direction and wind velocity detector of network interface, comprise wind direction and wind velocity sensor 1, the output terminal of described wind direction and wind velocity sensor 1, connection carries the signal input part of the single-chip microcomputer 2 of A/D modular converter; The described single-chip microcomputer 2 that carries the A/D modular converter connects Network Interface Module 3.

Wind direction and wind velocity sensor 1 wind direction and wind speed information to external world gathered, and directly to the single-chip microcomputer 2 output wind directions and the relevant voltage analog signal of wind speed that carry the A/D modular converter, the single-chip microcomputer 2 that carries the A/D modular converter can be a digital signal with this analog signal conversion, and the arithmetical unit that carries the single-chip microcomputer 2 of A/D modular converter carries out the internal arithmetic analysis with this digital signal, produce modulation signal, and signal exported to Network Interface Module 3, with the read-write of control ethernet control chip.

Carry the signal that the single-chip microcomputer 2 of A/D modular converter sends and send information by the ethernet control chip in the Network Interface Module 3 being operated control to remote control terminal, the feedback information that Network Interface Module 3 also can the receiving remote control end also is transferred to and has the single-chip microcomputer 2 that carries the A/D modular converter.

With reference to figure 2, be the signals collecting and the treatment circuit schematic diagram of Fig. 1 specific embodiment.Wherein, what the measuring wind speed of wind direction and wind velocity sensor 1 partly adopted is the photoelectric type wind gage of three vane formulas, is made up of three vanes, D1 light emitting diode and Q1 phototriode, and the wind direction measure portion comprises annular frame resistance R6.Carry the single-chip microcomputer 2 of A/D modular converter, adopting model is the single-chip microcomputer of ATMEGA128_AC.

With reference to figure 3, wherein, Network Interface Module 3 is by ethernet control chip 31, separation filter 32, and Ethernet RJ-45 interface 33 is formed.That ethernet control chip 31 adopts is RTL8019AS, and that separation filter 32 adopts is 20F001N, and that Ethernet RJ-45 interface 33 adopts is RJ_45.

With reference to Fig. 2, light emitting diode D1 irradiation phototriode Q1, according to the wind speed difference, the light pulse difference of generation.Phototriode Q1 links to each other with the counting input port PD7/T2 of single-chip microcomputer.

The output terminal of wind direction measure portion is connected with the AD conversion mouthful PF1/ADC1 of the single-chip microcomputer 2 that carries the A/D modular converter.

Reset circuit part 4 comprises R10, R11, C1A and S1, output terminal connect simultaneously the single-chip microcomputer 2 that carries the A/D modular converter RESET end and the RSTDRV of ethernet control chip 31 hold, export reset signal for both simultaneously.

Carry among Fig. 2 the A/D modular converter single-chip microcomputer 2 WR, RD, PE5, PE6 be connected with IOWB, IORB, PE5, the PE6 of ethernet control chip 31 among Fig. 3 respectively; The data line PA0-PA7 that carries the single-chip microcomputer 2 of A/D modular converter links to each other with the data line SD0-SD7 of ethernet control chip 31 among Fig. 3 respectively; The address wire PA0-PA7 that carries the single-chip microcomputer 2 of A/D modular converter links to each other with the address wire SA0-SA15 of ethernet control chip 31 among Fig. 3 with PC0-PC7.

R8, the bleeder circuit that R9 constitutes obtains an adjustable reference voltage, and this voltage is through C3 filtering, and the reference voltage as the AD conversion links to each other with the AREF of the single-chip microcomputer 2 that carries the A/D modular converter.

The data input/output terminal TPIN+ of ethernet control chip 31, TPIN-, TPOUT+, TPOUT-link to each other with separation filter 32 input/output terminal TPIN+, TPIN-, TPOUT+, TPOUT-in Fig. 3, and I/O TPRX+, the TPRX-of separation filter 32, TPTX+, TPTX-are connected with RX+, RX-, TX+, the TX-port of Ethernet RJ-45 interface 33.

The JP pin of ethernet control chip 31 connects high level, to select the wire jumper pattern, JP also is connected with the single-chip microcomputer 2 address wire A14 that carry the A/D modular converter with serial input pin BD7 (EEDO) simultaneously, and the serial data clock mouth BD5 (EESK) of ethernet control chip 31 is connected with the single-chip microcomputer 2 address wire A13 that carry the A/D modular converter.Can carry out remote data transmission receive the signal of the single-chip microcomputer 2 that carries the A/D modular converter at ethernet control chip 31 after, also can the receiving remote feedback information.

When wind direction or wind speed change, entire circuit work, extraneous wind direction information of wind transducer collection and output voltage directly are transferred to the single-chip microcomputer 2 that master controller carries the A/D modular converter, the wind direction simulating signal that carries 2 pairs of inputs of single-chip microcomputer of A/D modular converter is carried out the AD conversion, and the pulse signal of air velocity transducer collection that input is carried the single-chip microcomputer 2 of A/D modular converter is gathered counting simultaneously.The numerical information that carries 2 pairs of wind direction and wind velocities of single-chip microcomputer of A/D modular converter is carried out the internal analysis computing, sends read-write to ethernet control chip 31 simultaneously, read/write address and read-write length.Ethernet interface control ethernet control chip 31 is read and write RAM according to read-write start address and read-write length that the single-chip microcomputer 2 that carries the A/D modular converter provides, whenever reads a data RAM and adds 1 automatically.Allow chip operation in the wire jumper pattern, the I/O of chip and interruption are determined by wire jumper under this pattern.The base address of network service so just can be set, and carry out remote data transmission.

Like this, when extraneous wind direction and wind velocity changes,, just can carry out distributed remote monitoring, message exchange and shared as required by the described wind direction and wind velocity detector that has network interface.Shown in the wind direction and wind velocity detector also can receiving remote information.Solved the problem that does not possess Long-distance Control and data transmission capabilities traditionally.

Described single chip computer AT MEGA can also form with A/D convertor circuit and the single-chip microcomputer with identical function, as uses the ADC0804 analog to digital conversion, and 80C51 and 8155 circuit of forming replace; Described ethernet control chip also can replace with DM9008; Described separation filter also can replace for FB2022; Described communication interface also can be RS_485 communication interface or RS_232 communication interface.

More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the instructions just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1, the wind direction and wind velocity detector that has network interface, comprise wind direction and wind velocity sensor, A/D modular converter, it is characterized in that, also comprise microprocessor and ethernet interface module, wind direction and wind velocity sensor connects the A/D modular converter, simulating signal is converted into digital signal and passes to microprocessor, and the data transfer after microprocessor will be handled is given ethernet interface module, and then imports Ethernet into.

2, the wind direction and wind velocity detector with network interface according to claim 1 is characterized in that described microprocessor is a single-chip microcomputer.

3, wind direction and wind velocity detector with network interface according to claim 1, it is characterized in that, described ethernet interface module comprises ethernet control chip, separation filter, Ethernet RJ-45 interface, ethernet control chip receives control signal and the data that microprocessor transmits, ethernet control chip is under the control of microprocessor, data are handled, and the data after will handling are imported separation filter into, separation filter to data-signal isolate with filtering after, import data-signal into Ethernet RJ-45 interface, Ethernet RJ-45 interface imports data-signal into Ethernet.

4, the wind direction and wind velocity detector with network interface according to claim 2 is characterized in that, described single-chip microcomputer is the single-chip microcomputer that carries the A/D modular converter.

5, the wind direction and wind velocity detector with network interface according to claim 1 is characterized in that, also comprise separation filter, microprocessor connects ethernet interface module by separation filter.