CN205608449U

CN205608449U - Fire damp monitored control system of double layer reticulated twine

Info

Publication number: CN205608449U
Application number: CN201620259983.5U
Authority: CN
Inventors: 蒋慧; 吴双; 张涛
Original assignee: Huainan Union University
Current assignee: Huainan Union University
Priority date: 2016-03-29
Filing date: 2016-03-29
Publication date: 2016-09-28
Anticipated expiration: 2026-03-29

Abstract

The utility model discloses a fire damp monitored control system of double layer reticulated twine, including ground monitoring host, connect the CAN bus through the CAN interface card, be used as monitored control system's host computer, main control unit is through CAN bus connection ground monitoring host and follow controller for handle the state information who follows the controller transmission and keep the data interaction with ground monitoring host, from the controller, connect main control unit, gas detection module and driver for handle the gas information and the fan control that detect, the gas detection module is connected from the controller for detect gas density, the driver is connected from controller and fan for drive fan operation, the driver is connected to the fan for the ventilation is with control gas concentration. The utility model discloses a CAN bus constitutes the control of double layer reticulated twine, has many places gas density real -time supervision and alarming function in the pit, adopts the design of principal and subordinate's controller simultaneously, has improved system data collection's speed, further improves ability and real -time that system data handled.

Description

A kind of fire damp monitoring system of double-layer network

Technical field:

This utility model relates to a kind of real-time monitoring system, especially relates to a kind of coal mine gas density real-time monitoring and control system.

Background technology:

China's coal-mine security incident takes place frequently, and causes great casualties and huge economic loss, and wherein coal mine gas disaster accident is importance, particularly a gas explosion.Therefore fire damp is monitored work and increasingly becomes the emphasis of prevention and control of mine disaster.There is problems in that first is real-time Data Transmission aspect currently for methane monitoring system, the serial communication transfer rate such as traditional RS232, RS485 is slow and extended capability is more weak, and wireless telecommunications are affected bigger by down-hole adverse circumstances；Second be that function is the most single, and the long-range monitoring function of the most simple carrying out, when gas density is too high, it is impossible to be automatically aerated；3rd is systematic function aspect, i.e. data acquisition has much room for improvement with the ability of information processing.

Utility model content:

1. utility model to solve the technical problem that

For solving the deficiency that above-mentioned gas monitor exists, the purpose of this utility model is to provide the fire damp monitoring system of a kind of double-layer network, many places, down-hole gas density can be monitored on ground in real time and realize automatic ventilation with control gas concentration, there is efficient data acquisition and processing (DAP) ability simultaneously, to improve the real-time of system Detection & Controling.

2. technical scheme

For achieving the above object, this utility model have employed techniques below scheme:

A kind of fire damp monitoring system of double-layer network, including ground monitoring main frame, CAN interface card, CAN, master controller, from controller, gas management module, driver and blower fan.

Described ground monitoring main frame, by being attached between CAN interface card and CAN, as the main frame of Web control；

Described CAN interface card, connects ground monitoring main frame and CAN, changes for the information between ground monitoring main frame and CAN；

Described CAN, connects ground monitoring main frame and master controller and master controller and respectively from controller, for ground monitoring main frame and down-hole master controller and master controller be respectively connected from the double-deck communication of controller；

Described master controller, connects ground monitoring main frame by CAN and each from controller, for processing the status information respectively come from controller transmission and keeping data interaction with each from controller and ground monitoring main frame；

Described from controller, connect master controller, gas management module and driver, for processing coal mine gas information and the air-blower control of detection；

Described gas management module, connects from controller, is used for detecting gas density；

Described driver, connects from controller and blower fan, is used for driving fan operation；

Described blower fan, connects driver, for ventilating with control gas concentration.

Further improving as this utility model, described CAN interface card uses FC7502；

Further improving as this utility model, described master controller uses STM32f103zet6 chip as microprocessor, and this chip carries 2 CAN communication interfaces and acceptance fitration, conveniently with the sprayer controller communication in bus；

Further improve as this utility model, described from controller use STC89C52 chip as microprocessor；

Further improving as this utility model, described gas management module is made up of firedamp sensor and A/D change-over circuit, and wherein firedamp sensor uses MQ-3 firedamp sensor, and A/D conversion chip uses TLC549；

Further improve as this utility model, described driver is made up of fairchild SPM FSBB20CH60F and peripheral circuit thereof, and the control signal input of above-mentioned fairchild's SPM is connected by high speed photo coupling TLP559IGM with the 6 road PWM output pins from controller single-chip microcomputer；

3. beneficial effect

This utility model uses technique scheme, has the advantages that:

(1) the fire damp monitoring system of a kind of double-layer network of the present utility model can monitor many places, down-hole gas density in real time on ground and realization automatically controls；

(2) the fire damp monitoring system of a kind of double-layer network of the present utility model uses master-slave controller control model, improves the speed of system acquisition data, improves ability and real-time that system data processes further；

(3) the protection definite value of the fire damp monitoring system of a kind of double-layer network of the present utility model can be revised, flexibly and easily at any time at every intelligent controller and ground monitoring main frame.Often locate all by different liquid crystal display real time datas simultaneously.

(4) the fire damp monitoring system of a kind of double-layer network of the present utility model uses the two-wire system communication modes that CAN is constituted, save a large amount of cable, I/O module and project installation expense, system holistic cost is relatively low and is prone to later maintenance, the most important expanding of system function that is easy to, good stability.

Accompanying drawing illustrates:

Fig. 1 is the fire damp monitoring system the general frame of a kind of double-layer network of the present utility model；

Fig. 2 is Host Controller Architecture figure of the present utility model；

Fig. 3 is of the present utility model from controller architecture figure.

Detailed description of the invention:

For the technological means making this utility model realize, creation characteristic, reach purpose and be easy to understand with effect, below in conjunction with detailed description of the invention, this utility model is expanded on further.

According to one embodiment of this utility model, as shown in Figure 1, it is provided that the fire damp monitoring system of a kind of double-layer network, including:

Described blower fan, connects driver, for ventilating to reduce gas density.

For more detailed description this utility model embodiment detailed description of the invention, it is described in detail to master controller with from controller:

Fig. 2 is Host Controller Architecture figure of the present utility model.JTAG mouth is connected, for device debugging with the general purpose I/O mouth (GIPO) of single-chip microcomputer STM32；Key circuit is all connected with controller general I/O mouth with liquid crystal display and is respectively used to parameter and arranges and show with systematic parameter；The CAN mouth of single-chip microcomputer STM32 is connected with CAN transceiver and carries out CAN communication；Master controller uses and uses to obtain essential safe type Switching Power Supply (being called for short intrinsic safety type power supply) at explosive gas atmosphere, has explosion prevention function.

Fig. 3 is of the present utility model from controller architecture figure.Gas management module is connected with single-chip microcomputer STC89C52 by interface, and gas density information is transferred to single-chip microcomputer；ID arranges module and is connected with single-chip microcomputer, for arranging originally from controller No. ID, i.e. arranges location information；Driver is connected with single-chip microcomputer by interface, uses photoelectrical coupler to isolate；Single-chip microcomputer is connected to CAN by CAN controller and CAN transceiver, to realize the data transmission with master controller.

The work process citing of this system is described as follows:

This utility model is the distributed monitoring system of double-layer network, detects that gas density is passed through CAN and is transferred to master controller in real time from controller, and master controller transfers data to ground monitoring main frame by CAN and shows；Simultaneously, the rotating speed of blower fan can be controlled according to the comparable situation of methane Concentration Measurement value with setting value from controller, to automatically control gas density, wherein gas density setting value is set by master controller or monitoring host computer, different according to different local requirements, each can be different from the setting value of controller；When detecting that gas density exceedes setting value and cannot reduce, warning message can be transferred to ground monitoring main frame and report to the police, remind staff to use manual type to be aerated, within the scope of being in normally with control gas concentration.

Schematically being described this utility model and embodiment thereof above, this description does not has restricted, and shown in accompanying drawing is also one of embodiment of the present utility model, and actual structure is not limited thereto.So, if those of ordinary skill in the art is enlightened by it, in the case of creating objective without departing from this utility model, design the frame mode similar to this technical scheme and embodiment without creative, protection domain of the present utility model all should be belonged to.

Claims

1. the fire damp monitoring system of a double-layer network, it is characterised in that include ground monitoring main frame, by being attached between CAN interface card and CAN, as the main frame of Web control；CAN, connects ground monitoring main frame and master controller and master controller and respectively from controller, for ground monitoring main frame and down-hole master controller and master controller be respectively connected from the double-deck communication of controller；Master controller, connects ground monitoring main frame by CAN and each from controller, for processing the status information respectively come from controller transmission and keeping data interaction with each from controller and ground monitoring main frame；From controller, connect master controller, gas management module and driver, for processing coal mine gas information and the air-blower control of detection；Gas management module, connects from controller, is used for detecting gas density；Driver, connects from controller and blower fan, is used for driving fan operation；Blower fan, connects driver, for ventilating with control gas concentration.

The fire damp monitoring system of a kind of double-layer network the most according to claim 1, it is characterised in that: described double-layer network monitoring system uses CAN to carry out communication.

The fire damp monitoring system of a kind of double-layer network the most according to claim 1, it is characterised in that: described CAN interface card uses FC7502.

The fire damp monitoring system of a kind of double-layer network the most according to claim 1, it is characterised in that: the microprocessor of described master controller uses STM32f103zet6 chip, the described microprocessor employing STC89C52 chip from controller.

The fire damp monitoring system of a kind of double-layer network the most according to claim 1, it is characterised in that: described gas management module is made up of gas sensor and A/D change-over circuit, and wherein gas sensor uses MQ-3, A/D conversion chip to use TLC549.

The fire damp monitoring system of a kind of double-layer network the most according to claim 1, it is characterized in that: described driver is made up of fairchild SPM FSBB20CH60F and peripheral circuit thereof, the control signal input of above-mentioned fairchild's SPM is connected by high speed photo coupling TLP559IGM with the 6 road PWM output pins from controller single-chip microcomputer.

7. according to the fire damp monitoring system of a kind of double-layer network described in any one of claim 1-6, it is characterised in that: described master controller and respectively all use intrinsic safety type power supply from the working power of controller.