CN202228128U

CN202228128U - Power-off device

Info

Publication number: CN202228128U
Application number: CN2011202805558U
Authority: CN
Inventors: 赵敏
Original assignee: Anhui University of Science and Technology
Current assignee: Anhui University of Science and Technology
Priority date: 2011-08-04
Filing date: 2011-08-04
Publication date: 2012-05-23
Anticipated expiration: 2021-08-04

Abstract

The utility model discloses a power-off device, which includes a dual CPU full digital control circuit, an infrared methane detection sensor, a buzzer and the like, wherein the infrared methane detection sensor is placed between a DSP (digital signal processor) + FPGA (field programmable gate array) control module and a power supply control module; a liquid crystal display module, a communication module, an alarming module, the DSP + FPGA control module, the power supply control module and an infrared remote control module are respectively connected to the dual CPU full digital control circuit through full-duplex interfaces; the dual CPU full digital control circuit consists of two low-power singlechips as well as a crystal oscillator circuit, a reset circuit, a download and debugging window; an LCD, a receiving window of the infrared remote control module and an interface plug of the communication module are arranged on the surface of a casing; a transom window is formed at the lower part of the casing, and is connected and communicated with an air chamber; and the infrared methane detection sensor is placed in the air chamber. The power-off device has the advantages of small measuring error, high reaction speed, low power, high reliability, convenience for installation and long service life.

Description

Cutoff instrument

Technical field:

The utility model relates to a kind of cutoff instrument, particularly relates to a kind of methane gas cutoff instrument.

Background technology:

Cutoff instrument is a kind of each operation place under the coal mine, instrument that provides methane to transfinite power down function of being applicable to.At present, outage point of firedamp sensor control that the fixed methane monitor breaker employing that the colliery is used always is single or the design of cutting off the power supply and controlling with two road firedamp sensors and two tunnel, its function is simple; Fluctuation of service; Reaction speed is slow, and error range is big, and application life is short.

Summary of the invention:

Technical deficiency to present the said goods existence; The purpose of the utility model is to provide a kind of cutoff instrument, and it adds FPGA control module, infrared methane detecting sensor, energy supply control module, infrared remote control module, shell, buzzer, alarm, transom window, air chamber, receive window, plug, LCD etc. by the digital control circuit of two CPU, LCD MODULE, communication module, alarm module, DSP and forms.

The utility model solves the technical scheme that its technical problem adopted: it is made up of infrared methane detecting sensor, energy supply control module, shell, transom window, air chamber; The infrared methane detecting sensor is placed in DSP and adds between FPGA control module and the power module, and LCD MODULE, communication module, alarm module, DSP add FPGA control module, energy supply control module, infrared remote control module and be connected on two full even numbers word control circuits of CPU through the full duplex interface respectively; The digital control circuit of two CPU is the control core, and it is made up of two low-power scms and crystal oscillating circuit, reset circuit, download and debug window; The new mine product Switching Power Supply that energy supply control module selects for use intelligent dual-power to automatically switch and design, the infrared remote control module comprises the infrared circuit that receives the decode; Alarm module comprises buzzer and alarm, and buzzer and alarm are placed on the case surface; The surface of shell is provided with the receive window of LCD, infrared remote control module and the interface plug of communication module, and the bottom of shell has transom window, and transom window connects air chamber, and communicates with air chamber, and the infrared methane detecting sensor is placed in the air chamber.

The beneficial effect of the utility model is: measure error is little, measures accurately, and reaction speed is fast, and is low in energy consumption, stable performance, and reliability is high, and simple in structure, easy for installation, physical life is long.

Description of drawings:

Fig. 1 is the structured flowchart of the utility model cutoff instrument;

Fig. 2 is the overall structure sketch map of the utility model cutoff instrument;

Fig. 3 is the partial cutaway schematic of the utility model cutoff instrument;

Wherein: 1, the full even numbers word control circuit of two CPU, 2, LCD MODULE, 3, communication module, 4, alarm module; 5, DSP adds FPGA control module, 6, infrared methane detecting sensor, 7, energy supply control module, 8, the infrared remote control module; 9, shell, 10, buzzer, 11, alarm, 12, transom window; 13, air chamber, 14, receive window, 15, plug, 16, LCD.

The specific embodiment:

Like Fig. 1, Fig. 2, shown in Figure 3; A kind of cutoff instrument; It is made up of infrared methane detecting sensor, energy supply control module, shell, transom window, air chamber, comprises that the digital control circuit of two CPU 1, LCD MODULE 2, communication module 3, alarm module 4, DSP add FPGA control module 5, infrared methane detecting sensor 6, energy supply control module 7, infrared remote control module 8, shell 9, buzzer 10, alarm 11, transom window 12, air chamber 13, receive window 14, plug 15, LCD 16 etc.Infrared methane sensor 6 is placed in DSP and adds between FPGA control module 5 and the energy supply control module 7; LCD MODULE 2, communication module 3, alarm module 4, DSP add FPGA control module 5, energy supply control module 7, infrared remote control module 8 and are connected on two digital control circuits 1 of CPU through the full duplex interface respectively, realize the full-duplex communication of signal; The digital control circuit 1 of two CPU is the control core; It is made up of two low-power single machines and crystal oscillating circuit, reset circuit, download and debug window; The digital control circuit 1 of two CPU adds FPGA control module 5 with DSP and forms two CPU Digital Control System; Realize that numeral shows, touring four road methane transducer signals that detect, the intellectuality control of four-way switch amount signal and the output of four road cut-offing instructions; The new mine product Switching Power Supply that energy supply control module 7 selects for use intelligent dual-power to automatically switch and design with the power supply that converts light source power supply into of essential safety high efficiency of power supply, reduces power consumption, guarantees the security and stability of power supply supply; Infrared remote control module 8 comprises the infrared circuit that receives the decode; Alarm module 4 comprises buzzer 10 and alarm 11, and buzzer 10 is placed on shell 9 surfaces with alarm 11; The surface of shell 9 is provided with the receive window 14 of LCD 16, infrared remote control module 8 and the interface plug 15 of communication module 3; The bottom of shell 9 has transom window 12; Transom window 12 connects air chamber 13, and communicates with air chamber 13, and infrared methane sensor 6 is placed in the air chamber 13.

The utility model cutoff instrument, its major parameter is:

Explosion-proof sign: Exd [ib] I

Input signal: 4 tunnel simulations, frequency 200Hz-1000Hz

Output signal: 4 way switch amounts, 0-5mA, node;

Measure error :+-0.02% methane;

Display mode: four LED.

Claims

1. cutoff instrument; It is made up of infrared methane detecting sensor, energy supply control module, shell, transom window, air chamber; It is characterized in that: the infrared methane detecting sensor is placed in DSP and adds between FPGA control module and the energy supply control module; LCD MODULE, communication module, alarm module, DSP add FPGA control module, energy supply control module, infrared remote control module and are connected on two digital control circuits of CPU through the full duplex interface respectively, and the digital control circuit of two CPU is the control core; The surface of shell is provided with the receive window of LCD, infrared remote control module and the interface plug of communication module, and outer casing underpart has transom window, and transom window connects air chamber, and communicates with air chamber, and the infrared methane detecting sensor is placed in the air chamber.

2. cutoff instrument according to claim 1 is characterized in that: the described pair of digital control circuit of CPU is made up of two low-power scms and crystal oscillating circuit, reset circuit, download and debug window.

3. cutoff instrument according to claim 1 is characterized in that: the new mine product Switching Power Supply that described energy supply control module selects for use intelligent dual-power to automatically switch and design.

4. cutoff instrument according to claim 1 is characterized in that: described infrared remote control module comprises the infrared circuit that receives the decode.

5. cutoff instrument according to claim 1 is characterized in that: described alarm module comprises buzzer and alarm.

6. cutoff instrument according to claim 5 is characterized in that: described buzzer and alarm are installed on the case surface.