CN102323778B

CN102323778B - Wireless distributed control system of special controller for ring die

Info

Publication number: CN102323778B
Application number: CN 201110182853
Authority: CN
Inventors: 郭庆; 刘威; 徐翠锋; 胡锦泉; 胡鸿志
Original assignee: Guilin University of Electronic Technology
Current assignee: Guilin University of Electronic Technology
Priority date: 2011-07-01
Filing date: 2011-07-01
Publication date: 2012-12-12
Anticipated expiration: 2031-07-01
Also published as: CN102323778A

Abstract

The invention provides a wireless distributed control system of a special controller for a ring die. The system comprises 1-N-numbered master monitoring control devices and a matched wireless distributed monitoring alarm device, wherein each master monitoring control device comprises a pickup, a signal processor, a high-speed analog-digital converter, a DSP (digital signal processing) microcontroller and a numerical control drilling machine controller which are connected with each other in sequence; the DSP microcontroller can carry out fast Fourier transform and speech analysis; the components of the master monitoring control device acquire a sound signal of a drill, then convert the sound signal to a digital signal and then carry out fast Fourier transform on the signal to obtain a real-time spectrum; a speech processing circuit of the DSP microcontroller constantly compares the real-time spectrum with a spectrum which is originally acquired and stored in the microcontroller and appears when the drill works normally; the matched wireless distributed monitoring alarm device is provided with a wireless transceiver module which emits an alarm signal and is provided with a receiving display unit formed by the wireless transceiver module, a central control module and a central display template which receive and process the alarm signal and display an alarm. The system finds drill dulling in time, controls the drill to stop quickly, and can give an alarm to prompt a user of replacing the drill in time.

Description

Ring mould nonshared control unit radio centralized and decentralized system

Technical field

The present invention relates to the monitoring and the control technology of numerical control drilling machine, be specifically related to the drill bit of ring modulus control drilling machine is become monitoring, control and the alarm technique of a situation.

Background technology

Ring modulus control drilling machine make original everyone operate a bench drill and become everyone and can operate eight ten bench drills, its effect greatly improves, as if the very important person has not operated, labour intensity by reason say descend a lot.But along with the running of many bench drills, drill bit becomes time in wearing and tearing apace, as long as their become time, the difficulty of advancing to bore to become, drilling quality also can't guarantee, even can have an accident; This is the thing seen of being unwilling in the operation.Take place for fear of this phenomenon, as long as drill bit becomes time, when sending dull noise, the operative employee just must arrive in before the drilling machine braking machine bit change in addition immediately, with the safety that guarantees drilling machine and workpiece and process the quality of holing; And drill bit becomes and time to occur at random, so just makes operative employee's spirit when operation be in all the time in a kind of tense situation of height, and the people is easy to fatigue, and is totally unfavorable to keeping the safety in production.Therefore, be badly in need of that a kind of situation that can whether become the drill bit of such drilling machine time can be monitored and take place to become brake immediately immediately, can also situation about monitoring in time be informed the technology and the system of operative employee's (so that removing to change drill bit immediately) simultaneously.

Summary of the invention

The objective of the invention is to the public disclose a kind of that monitor automatically by the situation that can whether become the drill bit of ring modulus control drilling machine time, can Braking mode when becoming a situation and occur, and the ring mould nonshared control unit radio centralized and decentralized system of reporting to the police simultaneously.

The unlimited Distributed Control System (DCS) of this ring mould nonshared control unit, it is made up of 1-N main monitor controller and a supporting wireless collecting and distributing monitor and alarm unit.Its main monitor controller is made up of acoustic pickup, signal processor, high speed analog-digital converter A/D, the DSP micro controller that can carry out Fast Fourier Transform (FFT) and speech analysis and numerical control drilling machine controller; They are coupled to each other successively; Acoustic pickup accepts to gather the voice signal of drill bit punching; Signal processor then amplifies the signal that collects accordingly or decays; Make it electric current and voltage and be fit to high speed analog-digital converter (A/D), A/D becomes digital signal with the analog signal conversion of sound, and the digital signal of sound is delivered to and done Fast Fourier Transform (FFT) (FFT) in the DSP micro controller; Frequency spectrum when its speech processing circuit then constantly is stored in the drill bit operate as normal in the DSP micro controller with it with original collection is constantly compared; When the frequency spectrum difference of finding both was very big, micro controller output a control signal to the numerical control drilling machine controller that drilling machine was furnished with originally immediately, and the servomotor that the numerical control drilling machine controller is advanced and retreat to the control drill bit on the drilling machine under the instruction triggers of control signal carries out emergency brake and moves back brill.The wireless collecting and distributing monitor and alarm unit that it is supporting; Form by a pair of radio receiving transmitting module, central control module and central indicating template; The one of which transceiver module is connected with the DSP micro controller of its main monitor controller; When the numerical control drilling machine controller carried out emergency brake and stops boring, its output alarm signal, was sent alerting signal by it to wireless transmitter module through the DSP micro controller with wireless microwave form; Its another radio receiving transmitting module and central control module and central indicating template composition are accepted display unit; Radio receiving transmitting module is accepted from being connected transmitting of radio receiving transmitting module on the main monitor control system; Again it is delivered to central control module; Central control module carries out signal Processing (mainly being drilling machine identification), and result is presented on the central indicating template.

The present invention has following superior usefulness:

1, its main monitor controller will stop boring to become electronic automatic monitoring and stop automatically from personal monitoring, manual work and bore the monitoring that the lathe drill bit becomes time, remove the high-strung mental burden of operative employee, will have reduced labour intensity, favourable safety and production;

2, because electronic automatic monitoring finds that than the personal monitoring drill bit becomes time in time, and electronics stops to bore also fast many automatically, because of becoming a drilling quality problem that produces, can stop basically on drill bit like this, thus the crudy of raising product;

3, its monitor and alarm unit has wireless collecting and distributing characteristic; Its radio receiving transmitting module can be accepted the monitoring alarm signal that radio receiving transmitting module that the main monitor controller of 1-N connects sends and entreat on the indicating template therein to show; The operative employee is as long as keep watch on central indicating template like this; Just can grasp the working condition of whole drilling machine drill bits; Tour just can know that the drill bit of which platform loom has problem before need not every bench drill, can handle to the loom place that the drill bit problem is arranged immediately.

Description of drawings

Fig. 1 is the electrical principles block scheme of native system.

Embodiment

With regard to accompanying drawing and embodiment the present invention is done further explanation below:

Shown in accompanying drawing 1, main monitor controller and a supporting wireless collecting and distributing monitor and alarm unit that the situation whether ring mould nonshared control unit radio centralized and decentralized system of the present invention can be become the drill bit of such drilling machine time by 1-N is monitored automatically, can Braking mode when becoming a situation and occur be formed.

Its main monitor controller by acoustic pickup (1), signal processor (2), high speed analog-digital converter A/D (3), can carry out DSP micro controller (4) and numerical control drilling machine controller (5) that Fast Fourier Transform (FFT) and speech analysis use and form.Acoustic pickup (1) generally is installed near the drill bit of drilling machine (10) nearby, so that it can clearly accept the sound of drill bit punching, its adopts special construction to make drilling machine noise Acquisition Circuit; Acoustic pickup (1) is connected in series interconnected with signal processor (2), high speed analog-digital converter A/D (3), DSP micro controller (4) and numerical control drilling machine controller (5) successively; Signal processor (2), high speed analog-digital converter A/D (3), DSP micro controller (4) and numerical control drilling machine controller (5) both can be assemblied in one separately independently in the small electric apparatus box, also can attach together together with the numerical control drilling machine controller (5) of drilling machine (10).Signal processor (2) amplifies the signal that collects accordingly or decays, and becomes immediately because work as drill bit, might can become very big, ear-piercing by noise, and the marking current that collects is very big, then need decay; Sometimes then maybe bit freezing, become silent state, the marking current that at this moment collects is very low, then need suitably amplify; In a word, make noise simulation voltage of signals electric current be fit to high speed analog-digital converter (A/D) job requirement.A/D becomes digital signal with the analog signal conversion of sound; The digital signal of sound is delivered to DSP micro controller (4) lining again and is done Fast Fourier Transform (FFT) (FFT); Frequency spectrum when its speech processing circuit then constantly is stored in the drill bit operate as normal in the micro controller with it with original collection is constantly compared; Frequency spectrum difference will be with the drill bit operate as normal time is very big if drill bit becomes frequency spectrum that the drill bit noise of the oppressiveness that produces immediately forms; For the very big frequency spectrum of the difference of coming in; Speech processing circuit then is judged to be the drill bit change and pauses; Micro controller (4) outputs a control signal to numerical control drilling machine controller (5) immediately; (this numerical control drilling machine controller ring mould pantodrill just had originally, and it has applied for Chinese patent, and the patent No. is 200810137863.8) numerical control drilling machine controller carries out emergency brake at the servomotor of under the instruction triggers of control signal the control drill bit on the drilling machine (10) being advanced and retreat and moves back brill.

Inform the operative employee for the drill bit change that monitors is paused situation and emergency brake stop the brill situation, this control system also is designed with a supporting wireless collecting and distributing monitor and alarm unit.This is wireless, and collecting and distributing monitor and alarm unit is made up of two parts: a part is made up of radio receiving transmitting module (6) and main monitor controller; This module links to each other with its DSP micro controller (4); When numerical control drilling machine controller (5) carries out emergency brake and stops boring; Also output alarm signal, is sent alerting signal by it to radio receiving transmitting module (6) through the DSP micro controller with wireless microwave form; Another part of this wireless collecting and distributing monitor and alarm unit then is made up of another radio receiving transmitting module (7), central control module (8) and central indicating template (9); Its radio receiving transmitting module (7) is accepted from being connected transmitting of radio receiving transmitting module (6) on the main monitor controller; It is delivered to central control module (8); Central control module carries out relevant treatment (mainly being drilling machine identification), and result is presented on the central indicating template (9).

Claims

1. encircle mould nonshared control unit radio centralized and decentralized system; It is made up of 1-N main monitor controller and a supporting wireless collecting and distributing monitor and alarm unit; It is characterized in that: its main monitor controller is made up of acoustic pickup (1), signal processor (2), high speed analog-digital converter A/D (3), the DSP micro controller (4) that can carry out Fast Fourier Transform (FFT) and speech analysis and numerical control drilling machine controller (5); They are coupled to each other successively; Acoustic pickup (1) is gathered the voice signal of drill bit punching; Signal processor (2) then amplifies the signal that collects accordingly or decays; Make it electric current and voltage and be fit to high speed analog-digital converter A/D (3), A/D becomes digital signal with the analog signal conversion of sound, and the digital signal of sound is delivered to DSP micro controller (4) lining again and done Fast Fourier Transform (FFT) (FFT); Frequency spectrum when its speech processing circuit then constantly is stored in the drill bit operate as normal in the DSP micro controller with digital signal with original collection is constantly compared; When the frequency spectrum difference of finding both was very big, micro controller (4) output a control signal to the numerical control drilling machine controller (5) that drilling machine (10) was furnished with originally immediately, and the numerical control drilling machine controller carries out emergency brake at the servomotor of under the instruction triggers of control signal the control drill bit on the drilling machine (10) being advanced and retreat and moves back brill; The wireless collecting and distributing monitor and alarm unit that it is supporting; Form by first radio receiving transmitting module (6), second radio receiving transmitting module (7), central control module (8) and central indicating template (9); Its first radio receiving transmitting module (6) is connected with the DSP micro controller (4) of its main monitor controller; When the numerical control drilling machine controller carries out emergency brake and stops boring; Its output alarm signal, is sent alerting signal by it to first wireless transmitter module (6) through the DSP micro controller with wireless microwave form; Its second radio receiving transmitting module (7) is accepted display unit with central control module (8) and central indicating template (9) composition; Second radio receiving transmitting module (7) is accepted from being connected transmitting of first radio receiving transmitting module (6) on the main monitor controller; Again it is delivered to central control module (8); Central control module carries out signal Processing, carries out drilling machine identification, and result is presented on the central indicating template (9).