CN1629608A - Device status data acquisitor - Google Patents

Abstract

This invention provides a device state data collector including: a temperature sensor testing temperature of the test point to generate temperature sensing signals, a vibration sensor testing vibration of test point to generate vibration sensing signals, an A/D converter carrying out modular conversion to the above two signals and a process device connected with said A/D converter for processing the converted two signals and storing the processed signals in the memory, which provides a multifunction device state data collection device integrating plan, collection, analysis, judgment and manage.

Description

Device status data acquisitor

Technical field

The present invention relates to a kind of data acquisition unit, relate in particular to a kind of device status data acquisitor that is applied in the various kinds of equipment.

Background technology

Present device status data acquisitor exists following deficiency:

1. usually only have a kind of parameter acquisition ability, can only reflect the environment division running status.

2. single path, the data number amount is limited.

3. usually use dma mode can only satisfy a kind of requirement of frequency range, cause easily the waste of system resource in the gatherer process.

4. partial data needs to input management system or routine testing machine account after the hand-kept again.

5. vibration and temperature sensor separate, and the measurement of the different amounts with temperature of vibration is finished in the secondary detection calibrating, also must change between temperature and vibrating sensor.

6. can only record a kind of vibrational waveform, and sample frequency and sampling length are fixed also.

7. the interrupt keyboard response is fast, but causes easily double hit. And scanning keyboard takies a large amount of system resources.

Summary of the invention

Therefore, the object of the present invention is to provide a kind of multifunctional equipment status data collector that integrates plan, collection, analysis, judgement, management.

According to above-mentioned purpose, device status data acquisitor of the present invention comprises:

Temperature sensor, the temperature of detection test points produces temperature sensor signal;

Vibrating sensor for detection of the vibration of test point, produces the vibrating sensing signal;

A/D converter carries out analog-to-digital conversion with above-mentioned temperature sensor signal and vibrating sensing signal;

Treating apparatus links to each other with described A/D converter, be used for processing through analog-to-digital temperature sensor signal and vibrating sensing signal, and the signal storage after will processing is in memory.

Description of drawings

Fig. 1 is the structured flowchart of device status data acquisitor of the present invention.

The specific embodiment

The structure chart of equipment state collector of the present invention can be referring to shown in Figure 1.

Device status data acquisitor of the present invention is according to for many years actual demand of field apparatus managerial experiences and monitoring, remedies the defective that has the data collector built-in function now and use and the novel diagnostic instrments of developing. It can the synchronous acquisition vibration displacement, vibration velocity, vibration acceleration, vibratory impulse and temperature signal, has unique signals collecting algorithm, powerful data storage and the function that records simultaneously multiple waveforms. Possesses comprehensive reflection equipment running status, accurately hold the ability of status data, be furnished with international pioneering vibration temperature and detect integrated multi-functional sensor and powerful " Datahunter " data management software, integrate plan, collection, analysis, judgement, management, make plant maintenance work more scientific, more efficient, lighter.

Data acquisition unit operation principle of the present invention is to process carried out signal by the vibration acceleration signal that obtains in the vibrating sensor in the vibration temperature Multifunction Sensor, convert vibration velocity, vibration displacement and vibration and shock signal to, change by A/D together with temperature signal, realize the synchronous acquisition function of a plurality of parameters by microprocessor, have the digital data writing function of keyboard input concurrently.

All vibration signal data that collect are carried out peak value and the mean value that the data processing can obtain signal for data acquisition unit of the present invention, the equipment state feature that in data handling procedure, reflects for different signals, adopt different processing modes, seen formula (1), (2), (3).

Formula (1)

$A_P=f_i\frac{\underset{i=1}{\overset{K}{\mathrm{\Σ}}}{X}_{\mathrm{iP}}}{K-1}$

A _P: the peak value of expression vibration acceleration, vibration velocity or vibration displacement

f _i: the expression dimension

X _iP: the AD value that represents the i minor peaks

Formula (2)

$A_{\mathrm{ave}}=f_i\frac{\underset{i=1}{\overset{K}{\mathrm{\Σ}}}\left|X_i\right|}{K-1}$

A _ave: expression vibration acceleration, vibration velocity, vibration displacement or impact mean value

f _i: the expression dimension

X _i: the AD value that represents the i time sampling

Formula (3)

I _P＝f _iMaxX _p

I _P: the expression impact peak value

f _i: the expression dimension

X _P: the AD value of expression impact peak value

The acquisition capacity of multi-parameter: can the synchronous acquisition vibration displacement, speed, acceleration, impact and temperature signal, can reflect equipment running status comprehensively.

The multipath acquisition mode: data acquisition of the present invention is looked for and is provided with 8 paths in the device, and can satisfying nearly, 8 people use same data collector simultaneously. Every testing staff can be assigned to the dedicated path of oneself using, and its any operation in my dedicated path all can not affect the testing result in other people path, has also effectively protected the testing result of oneself simultaneously.

The sensor that data acquisition unit of the present invention disposes adopts vibration and temp. multifunction sensor, it is a kind of Multifunction Sensor that can have simultaneously vibration and TEMP performance, temperature sensor and vibrating sensor are integral by certain textural association, by this Multifunction Sensor, just can detect at one time temperature and the vibration parameters of measured point, therefore, can simplify testing procedure, raise the efficiency.

Data acquisition algorithm: in signal acquisition process, for the frequency requirement of unlike signal, adopted unique signal sampling algorithm, under the prerequisite that guarantees sample frequency, reduced to greatest extent taking system resource.

Be equipped with powerful management software: download in the data acquisition unit by the detection plan that the testing staff is set up, can not only realize vibrating and the direct-detection of temperature data, and out of Memory directly can be recorded in the data collector in qualitative or quantitative mode, and then these data upload are analyzed to management system. Really accomplish the Site Detection complete period management from plan generation, data acquisition, data passback, data analysis, data maintenance.

Following table is the comparison of device status data acquisitor of the present invention and existing like product:

Sequence number	EMC-2000 data collector characteristics	Relevant like product characteristics
			1	Have the many kinds of parameters acquisition capacity, can reflect equipment running status comprehensively.	Usually only have a kind of parameter acquisition ability, can only reflect the environment division running status.
2	8 paths are provided, can satisfy the nearly 8 people while	Single path, the data number amount is limited.

	Use.
			3	Have unique gathering algorithm, can take into account various signals for the high, normal, basic different requirements of analyzing frequency range, and the system resource that takies is minimum in gatherer process.	Usually use dma mode can only satisfy a kind of requirement of frequency range, cause easily the waste of system resource in the gatherer process.
4	Be furnished with powerful management software, can finish all routine testing tasks, save time and increase work efficiency.	Partial data needs to input management system or routine testing machine account after the hand-kept again.
			5	Be furnished with the vibration temperature integrated transducer, one-time detection is finished the measurement of vibration and two kinds of amounts of temperature, need not more emat sensor.	Vibration and temperature sensor separate, and the measurement of the different amounts with temperature of vibration is finished in the secondary detection calibrating, also must change between temperature and vibrating sensor.
6	Various vibration parameters waveforms can be recorded simultaneously, and different analysis frequencies and sampling length can be selected.	Can only record a kind of vibrational waveform, and sample frequency and sampling length are fixed also.
			7	The keyboard of hommization is processed, and has taken into account the advantage of interrupt keyboard and scanning keyboard.	The interrupt keyboard response is fast, but causes easily double hit. And scanning keyboard takies a large amount of system resources.

Device status data acquisitor of the present invention can be widely used in the slewing state-detection and management of the industries such as iron and steel, chemical industry, electric power.

Data acquisition device system of the present invention has the function of Internet Transmission and simple diagnosis, can be connected with the upper management system, the all levels of management personnel of device systems can understand the state of equipment under test at any time by network, be convenient to timely maintaining, maintenance and the improvement of equipment, it is one of important tool of the realization CBM of enterprise maintenance mode, deepen continuously along with equipment Management in Enterprise is informationalized, this instrument can embody larger advantage, has very high promotional value.

Claims (1)

1, a kind of device status data acquisitor comprises:

Temperature sensor, the temperature of detection test points produces temperature sensor signal;

Vibrating sensor for detection of the vibration of test point, produces the vibrating sensing signal;

A/D converter carries out analog-to-digital conversion with above-mentioned temperature sensor signal and vibrating sensing signal;

Treating apparatus links to each other with described A/D converter, be used for processing through analog-to-digital temperature sensor signal and vibrating sensing signal, and the signal storage after will processing is in memory.

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