CN2209334Y - Intelligent wind anemometer - Google Patents

Abstract

The utility model relates to an intelligent anemometer. 1-n sensors are connected with corresponding 1-n proportional amplifying units, the output end of each amplifying unit is connected with the input end of an A/D converter via a multicircuit conversion switch, and the converted digital quantity is connected with a microprocessor via an input and output interface I/O 3. The microprocessor is connected with a memorizer, a displayer and a printer via bus, is connected with the A/D converter and the multicircuit conversion switch via an interface I/O 1, and is connected with an operation panel 8 via an interface I/O 2. The utility model compares and counts the measured wind speed with a standard wind speed graph in the memorizer when measures the wind speed, and then the measuring result can be obtained; when measures air flow distribution, the utility model compares and counts the measured wind speed with the standard criterion of each nation in the memorizer, and then the measuring result can be obtained. The utility model has the characteristics of small size, simple operation, stable performance, etc.

Description

Intelligent wind anemometer

The utility model belongs to fields of measurement, is specifically related to a kind of intelligent measuring wind speed instrument.

Ventilating engineering almost is present in the production run of all trades and professions, for example power industry, environmental engineering, metallurgical engineering, cement building material industry etc. all have ventilating duct to be in operation, and heating, air-conditioning, meteorology, agricultural, refrigeration, drying, labour hygiene etc. also exist the flow phenomenon of wind.Therefore, these industries all need the mobile of wind measured.At present, the Pitot tube that has commonly used is joined tilting micromanometer and can not write down automatically, shows automatically, carries out automatically the hot-bulb formula electricity anemoscope of data processing.When using Pitot tube to join the tilting micromanometer measuring wind, measuring process is long, needs artificial reading, writes down and carry out loaded down with trivial details calculating; Use hot-bulb formula electricity anemoscope to need the people equally for writing down, calculating, two kinds of measuring methods all exist looks reader error and time delay error, have a strong impact on measuring accuracy, when measurement electric precipitator air-flow is evenly distributed degree, the people must enter fly-ash separator and measure and reading, cause human body itself to influence aerodynamic field, and the environment in the fly-ash separator is very abominable, the physical and mental health of badly damaged testing crew.

The purpose of this utility model provides a kind of automatic reading, writes down automatically and shows, overcome the people for looking reader error and time delay error, measuring intelligent accurately measuring wind speed instrument.

This intelligence measuring wind speed instrument, by sensor 1, amplifying unit 2, data processing unit, display 6, printer 7, guidance panel 8 compositions such as grade, the sensor 1 that it is characterized in that it is made up of 1～n the identical sensor of structure, its amplifying unit 2 is formed by having the ratio amplifying unit that can carry out high-pass filtering and low-pass filtering identical with corresponding 1～n the structure of 1～n sensor, its data processing unit comprises multicircuit switch 3, A/D converter 4, memory RAM, ROM, microprocessor 5, IO interface I/O1, I/O2, I/O3, its connecting relation is: connect with the input end of amplifying unit 2 by having the sensor 1 that wind speed can be transformed into electric signal, the multicircuit switch 3 of the output of amplifying unit 2 through carrying out multimetering in proper order connects with the input end of A/D converter 4, digital quantity after the conversion connects with microprocessor 5 by IO interface I/O3, microprocessor 5 is through bus and memory RAM, ROM, display 6, printer 7 connects, connect with A/D converter and multicircuit switch through the I/O1 interface, be connected with guidance panel 8 through the I/O2 interface.

When carrying out proceeding measurement, be connected with multicircuit switch by having n the sensor 1 that wind speed can be transformed into electric signal, the output of multicircuit switch 3 connects with the input end of A/D converter 4 through an amplifying unit 2, digital quantity after the conversion connects with microprocessor 5 by IO interface I/O3, microprocessor connects with memory RAM, ROM, display 6, printer 7 through bus, connect with A/D converter and multicircuit switch through the I/O1 interface, be connected with guidance panel 8 through the I/O2 interface.

Multicircuit switch has 16 passages, and the number n of sensor 1, amplifying unit 2 is 1～16.

Use the gentle distributions degree of uniformity of this apparatus measures wind speed to have the following advantages:

1) this instrument has the application of wide model, the measuring wind speed that is suitable for every profession and trade, have automatic measurement, store, carry out automatically data processing function automatically, not only can carry out spot measurement but also can carry out multimetering, the be evenly distributed measurement of the measurement of degree and cold air duct flow velocity, flow of the air-flow that is particularly suitable for the electric precipitator of thermal power plant and other industry;

2) can print and show measurement result and air-flow branch degree of uniformity parameter, overcome looking reader error and manually carrying out cumbersome work such as data recording, calculating of secondary instrument fully;

3) can measure 16 points simultaneously, and a plurality of points of extendible as required measurement, when therefore measuring air-flow and distributing quick and precisely;

4) have that volume is little, in light weight, easy to carry, simple to operate, stable performance, characteristics such as flexible.

Embodiment of the present utility model respectively schemes referring to following:

Fig. 1 is a theory diagram of the present utility model

Fig. 2 is the circuit theory diagrams of the utility model amplifying unit

Fig. 3 is A/D conversion of the present utility model and interface circuit schematic diagram

Fig. 4 is a microprocessor unit theory diagram of the present utility model

Fig. 5 is a front panel synoptic diagram of the present utility model

Fig. 6 is a rear panel synoptic diagram of the present utility model

Among the figure:

1--sensor (hot-bulb formula sensor) I/O1, I/O2, I/O3--input and output

2--amplifying unit interface (280PIO)

3--multicircuit switch (4067 chip) R1～R4--resistance

4--A/D converter (AD574) RAM--deposits place's device (2114) at random

5--microprocessor (Z80) ROM--ROM (read-only memory) (2716)

6--display (6 charactron common cathodes) W--potentiometer

7--printer (TP16) C1～C3--electric capacity

8--operation keyboard A1--amplifier (CA139)

8-1--parameter printing key A2--amplifier (CA140)

8-2--zeroing key L--inductance

8-3--deletion wind speed key YM1～YM3--code translator (74LS138)

8-4--gauge outfit printing key AB--address bus

8-5--printing key DB--data bus

8-6--parameter display key CB--control bus

8-7--automatic/hand key 9--clock (2.5MH)

8-8--feeler switch 10--reset key

11--power light 12--hot-bulb formula sensor socket

13--attaching plug 14--power switch

The amplifying unit 2 of this measuring instrument as shown in Figure 2, by capacitor C 1, C2, the Hi-pass filter that inductance L is formed, by resistance R 1, R2, R4, potentiometer W, amplifier A1 proportion of composing amplifying element, by resistance R 3, capacitor C 3, amplifier A2 forms active low-pass filter, wherein, the Hi-pass filter output terminal connects the negative input end of amplifier A1 through resistance R 1, the output terminal one tunnel of A1 is through resistance R 2, the positive input terminal of amplifier A2 in R3 and the active low-pass filter is connected, another road is through potentiometer W, resistance R 4 connecting to neutral, the positive input terminal of amplifier A1 is connected across between potentiometer W and the resistance R 4, in resistance R 2, draw a signal between the R3 and be connected, the negative input end of amplifier A2 and output terminal short circuit through the output terminal of capacitor C 3 with amplifier A2.

The A/D change-over circuit of this measuring instrument and interface circuit are as shown in Figure 3, by multicircuit switch 3, A/D converter 4, IO interface I/O1, I/O3, code translator YM1 forms, wherein, the output signal of amplifying unit 2 is connected with the input end VIN of A/D converter 4 through multicircuit switch 3, the enabling signal TS of A/D converter is connected with the gating signal TB of I/O1, input end C0～C3 of I/O1 is connected with the control bus of microprocessor, input end DB0～DB7 of I/O1 is connected with the data bus of microprocessor, data output end P1～P5 of I/O1 is connected with the control end A～C of multicircuit switch, data input pin P6～P9 of I/O1 is connected with the control end C4～C7 of A/D converter, digital quantity after the A/D conversion is connected with data input pin P10～P22 of I/O3 through output terminal D0～D11, I/O3 is connected with the control bus of microprocessor through input end C8～C11, I/O3 is connected with the data bus of microprocessor through output terminal DB8～DB15, input end A1～A7 of code translator YM1 is connected with the address bus of microprocessor, and the output terminal of YM1 links to each other with the chip selection signal end E of I/O1.

The microprocessor unit of this measuring instrument is as shown in Figure 4 by microprocessor 5, memory RAM, ROM, code translator YM2, YM3, IO interface I/O3, display, printer, operation keyboard, clock circuit, reset circuit is formed, wherein, microprocessor is through three-bus and I/O3, operation keyboard, printer, storer connects, the address bus of microprocessor respectively with code translator YM2, the input end of YM3 connects, the output terminal 2 of YM2,3,4,5 respectively with I/O3, display, operation keyboard, printer links to each other, the output terminal of YM3 and storer ROM, RAM connects, the output terminal of clock circuit is connected with the clock signal terminal of microprocessor, and the output terminal of reset circuit links to each other with the reset signal end of microprocessor.

Its measured signal moves towards as follows:

1) when carrying out spot measurement with a sensor, send into A/D converter by the electric signal that sensor 1 is gathered through an amplifying unit 2 and multicircuit switch 3, the digital quantity of this signal after the A/D conversion sent into microprocessor by data bus, control by microprocessor, by data bus send into storer and with storer in the anemometer that gives under this sensor standard wind-tunnel that deposits in earlier compare, calculate, and print automatically the wind speed of surveying and arithmetic mean wind speed;

2) when carrying out the order multimetering with a plurality of sensors, send into multicircuit switch 3 by n electric signal that is in sensor in different positions 1 collection through n amplifying unit 2, send into A/D converter by multicircuit switch 3 control sequences, the digital quantity of this signal after the A/D conversion sent into microprocessor by data bus, control by microprocessor, by data bus send into storer and with storer in the anemometer that gives under the standard wind-tunnel of n the sensor that deposits in earlier compare, calculate, and automatic sequence print the wind speed of surveying and arithmetic mean wind speed;

3) when carrying out air-flow when being evenly distributed degree measurement, be in the electric signal that sensor in different positions 1 gathers simultaneously by n and send into A/D converter through n amplifying unit 2 and multicircuit switch 3, the digital quantity of this signal after the A/D conversion sent into microprocessor by data bus, calculate by following (1)～(4) formula by microprocessor, send into storer by data bus:

K＝ $\underset{\mathrm{i\; =1}}{\overset{n}{\mathrm{\Σ}}}｜$ Vi－Vp｜／nVp （1）

A＝［1－ $\underset{\mathrm{i=1}}{\overset{n}{\mathrm{\Σ}}}｜$ Vi－Vp／2nVp］×100％ （2）

$\mathrm{M=}\underset{\mathrm{i=1}}{\overset{n}{\mathrm{\Σ}}}{V}^2\mathrm{i\; /\; nV}{}^{2}P\mathrm{(3)}$

$\mathrm{Q=}\sqrt{\mathrm{1\; /\; n}\underset{\mathrm{i=1}}{\overset{n}{\mathrm{\Σ}}}{\mathrm{［（Vi\; -Vp)\; /\; Vp\; ］}}^2}\mathrm{(4)}$

The various countries standard criterion value K, A, M, the Q that store in result calculated and the storer compare, and whether judge conformance with standard and print result of calculation and corresponding " qualified " or " defective " printed words.

4) when carrying out the order multimetering with a plurality of sensors, be connected with an amplifying unit 2 through multicircuit switch 3 by n electric signal that is in sensor in different positions 1 collection, by multicircuit switch 3 control sequences electric signal is sent into and to be sent into A/D converter after amplifying unit amplifies, the digital quantity of this signal after the A/D conversion sent into microprocessor by data bus, control by microprocessor, by data bus send into storer and with storer in the anemometer that gives under the standard wind-tunnel of n the sensor that deposits in earlier compare, calculate, and automatic sequence print the wind speed of surveying and arithmetic mean wind speed;

The work of this instrument is as follows excessively:

1. before measuring, sensor probe is inserted on the hot-bulb formula sensor socket 12 of rear panel, connect AC power 13, open the position of the switch 14 to On on the rear panel, at this moment the pilot lamp 11 of front panel is bright, the printer pilot lamp is bright, the Far Left of 6 figure place sign indicating number tube displays is that most significant digit shows P, the expression instrument is normal,, clicks " total clear " key if do not show P, then show P, represent that also instrument is normal,, still do not show P or power up rear indicator light not work and illustrate that all instrument has problem to overhaul if by " total clear " key.

2. sensor is added electric preheating five minutes, the probe sealing is upwards upright, click " zeroing " key, 6 charactrons go out entirely, the expression instrument is just in automatic zero set (AZS), and probe sealing around here is upwards uprightly motionless, when zeroing is finished, 1,2,3,4 of display 6 shows 00.00, and the zeroing of expression instrument finishes; If still do not show 00.00 again about pressing in " zeroing " key five minutes, press this moment " total clear " key then the 6th of display show P, and then become repeatedly to carry out, till being transferred to display demonstration 00.00 by above-mentioned mistake.

3. after finishing above-mentioned two processes, pull out the sensor in the probe, be installed to the wind speed place that need to survey, red during installation in the probe in face of wind direction, the plane of two probe arms formations is vertical with wind direction.

4. after installing probe, by " automatic/hand " key 8-7, display 1,2,3,4 show FF.FF, expression is in manual state, again by " automatic/hand " key, display 1,2,3,4 show 00.00, the expression instrument is in auto state, when adopting a sensor measurement (when single channel is measured), this moment, instrument should be in manual state, and by " test " key 8-8, display demonstrates the wind speed of this point immediately, print gauge outfit by " gauge outfit printing key " 8-4, comprise year, month, day, printed words such as wind speed record carry out said process repeatedly and can carry out multimetering, this instrument 16 wind speed points of can sampling simultaneously, measure simultaneously or sequentially, this moment, instrument should be in auto state, will print this wind speed Vi of each measuring point before by " printing " key 8-5 mini-printer, print their mean value Vp at last, this instrument can be stored the measuring point number and mostly be 500 most.

5. when being evenly distributed test as air-flow, repeatedly by " parameter demonstration " key 8-6, then the most significant digit of display shows " 1 " according to this, " 2 ", " 3 ", " 4 ", " 5 ", represent wind speed mean value Vp respectively, Chinese Industrial Standards (CIS) K, Nippon Standard A, Soviet Union standard M, Unite States Standard (USS) Q, the critical field of various countries is: K＜30%, A 〉=85%, 1≤M≤1.2, Q≤0.25, on the group of four figures pipe of back, show a value corresponding simultaneously, this corresponding numerical value is according to above-mentioned formula (1), (2), (3), (4) draw, press " parameter printing " key 8-1, measured value and printing and the as a result acceptance or rejection printed words of various countries' standard after relatively with printing.

6. if in test process, think the inaccurate of this some test, can press the button once and delete a current wind speed, and show the wind speed numerical value of being deleted by " deletion wind speed " key 8-3.

Claims (6)

1, a kind of intelligent measuring wind speed instrument, by sensor 1, amplifying unit 2, data processing unit, display 6, printer 7, guidance panel 8 compositions such as grade, the sensor 1 that it is characterized in that it is made up of 1～n the identical sensor of structure, its amplifying unit 2 is formed by having the ratio amplifying unit that can carry out high-pass filtering and low-pass filtering identical with corresponding 1～n the structure of 1～n sensor, its data processing unit comprises multicircuit switch 3, A/D converter 4, memory RAM, ROM, microprocessor 5, IO interface I/01, I/02, I/03, its connecting relation is: connect with the input end of amplifying unit 2 by having the sensor 1 that wind speed can be transformed into electric signal, the multicircuit switch 3 of the output of amplifying unit 2 through carrying out multimetering in proper order connects with the input end of A/D converter 4, digital quantity after the conversion connects with microprocessor 5 by IO interface I/03, microprocessor 5 is through bus and memory RAM, ROM, display 6, printer 7 connects, connect with A/D converter and multicircuit switch through the I/01 interface, be connected with guidance panel 8 through the I/02 interface.

2, measuring wind speed instrument according to claim 1, it is characterized in that being connected with multicircuit switch by having n the sensor 1 that wind speed can be transformed into electric signal, the output of multicircuit switch 3 connects with the input end of A/D converter 4 through an amplifying unit 4, digital quantity after the conversion connects with microprocessor 5 by IO interface I/O3, microprocessor 5 connects with memory RAM, ROM, display 6, printer 7 through bus, connect with A/D converter and multicircuit switch through the I/O1 interface, be connected with guidance panel 8 through the I/O2 interface.

3, measuring wind speed instrument according to claim 1 is characterized in that multicircuit switch has 16 passages, and the number n of sensor 1, amplifying unit 2 is 1～16.

4, measuring wind speed instrument according to claim 1, the amplifying unit 2 that it is characterized in that it is by capacitor C 1, C2, the Hi-pass filter AO that inductance L is formed, by resistance R 1, R2, R4, potentiometer W, amplifier A1 proportion of composing amplifying element, by resistance R 3, capacitor C 3, amplifier A2 forms active low-pass filter, wherein, the Hi-pass filter output terminal connects the negative input end of amplifier A1 through resistance R 1, the output terminal one tunnel of A1 is through resistance R 2, the positive input terminal of amplifier A2 in R3 and the active low-pass filter is connected, another road is through potentiometer W, resistance R 4 connecting to neutral, the positive input terminal of amplifier A1 is connected across between potentiometer W and the resistance R 4, in resistance R 2, draw a signal between the R3 and be connected, the negative input end of amplifier A2 and output terminal short circuit through the output terminal of capacitor C 3 with amplifier A2.

5, measuring wind speed instrument according to claim 1, it is characterized in that it the A/D change-over circuit and interface circuit by multicircuit switch 3, A/D converter 4, IO interface I/O1, I/O3, code translator YM1 forms, wherein, the output signal of amplifying unit 2 is connected with the input end VIN of A/D converter 4 through multicircuit switch 3, the enabling signal TS of A/D converter is connected with the gating signal TB of I/O1, input end C0～C3 of I/O1 is connected with the control bus of microprocessor, input end DB0～DB7 of I/O1 is connected with the data bus of microprocessor, data output end P1～P5 of I/O1 is connected with the control end A～C of multicircuit switch, data output end P6～P9 of I/O1 is connected with the control end C4～C7 of A/D converter, digital quantity after the A/D conversion is connected with data input pin P10～P22 of I/O3 through output terminal D0～D11, I/O3 is connected with the control bus of microprocessor through input end C8～C11, I/O3 is connected with the data bus of microprocessor through output terminal DB8～DB15, I/O1 is through data output end D12, D13 and data bus connect to be taken off, input end A1～A7 of code translator YM1 is connected with the address bus of microprocessor, and the output terminal of YM1 links to each other with the chip selection signal end E of I/O1.

6, measuring wind speed instrument according to claim 1, the microprocessor unit that it is characterized in that it is by microprocessor 5, memory RAM, ROM, code translator YM2, YM3, IO interface I/O3, display, printer, operation keyboard, clock circuit, reset circuit is formed, wherein, microprocessor is through three-bus and I/O3, operation keyboard, printer, storer connects, the address bus of microprocessor respectively with code translator YM2, the input end of YM3 connects, the output terminal 2 of YM2,3,4,5 respectively with I/O3, display, operation keyboard, printer links to each other, the output terminal of YM3 and storer ROM, RAM connects, the output terminal of clock circuit is connected with the clock signal terminal of microprocessor, and the output terminal of reset circuit links to each other with the reset signal end of microprocessor.

Images