CN201499176U - Intrinsically safe wireless exchanger - Google Patents

Abstract

The utility model relates to an intrinsically safe wireless exchanger which is characterized in that the intrinsically safe wireless exchanger comprises a core processing module, a program storage module, a data storage module, a PCI bus socket, a wireless transmission module, an Ethernet data exchange module, an Ethernet module and a power supply module. The intrinsically safe wireless exchanger has the beneficial effects that the intrinsically safe wireless exchanger can improve the underground communication technology of a coal mine, realize the complete coverage of an underground network of the coal mine, make up for deficiencies of a wired network, realize the remote monitoring and the control of mechanical and electric equipment on a full-mechanized mining working face of the coal mine and other underground moving equipment of the coal mine and provide reliable data for realizing high-efficient automatic mining, remote control and fault diagnosis of a coal mining machine.

Description

Intrinsic safety type wireless switch

One, technical field

The utility model relates to a kind of wireless exchange board, relates in particular to a kind of intrinsic safety type wireless switch that is used for the work information transmission of dynamoelectric equipment under the coal mine.

Two, background technology

The colliery comprehensive automation is the assurance that the colliery is highly efficient and productive and keep the safety in production, and coal mine lower network platform is the basis of realizing the colliery comprehensive automation.At present, Industrial Ethernet has all been set up in many collieries of China, is used for the monitoring of down-hole coal excavation equipment and subsurface environment parameter; But mainly be to adopt cable network mode (optical fiber+explosion-proof switch), it mainly is the switch of two types of Hirschmann and Siemens that the core of the explosion-proof switch that adopt China down-hole constitutes, and adds explosion-resistant enclosure then, reaches the safety of coal mines requirement.The deficiency that the down-hole wired ethernet exists be mainly reflected in following some: (1) is arranged in main tunnel, can not cover whole down-hole; (2) cost an arm and a leg; (3) can't realize the monitoring of motion dynamoelectric equipment, such as coal-winning machine, locomotive etc.At present, the colliery comprehensive automation project of China, the fully-mechanized mining working of all failing to contain can not realize combining the remote monitoring of adopting equipment.

Three, summary of the invention

At above-mentioned shortcoming, the purpose of this utility model is to provide a kind of intrinsic safety type wireless switch, it can improve mechanics of communication under the coal mine, realize the remote monitoring and the control of other athletic equipment under comprehensive covering of coal mine lower network, realization coal mine fully-mechanized mining working dynamoelectric equipment and the coal mine, provides authentic data for realizing the exploitation of coal-winning machine high-efficient automatic, remote control and failure diagnosis.

Technology contents of the present utility model is that a kind of intrinsic safety type wireless switch is characterized in that it comprises

(1), is responsible for core processing module to the control and the communication of other module;

(2), be used to deposit tested user application, embedded OS and the program storage block of the user data that after system's power down, needs to preserve;

(3), the data memory module of code execution and storage;

(4), the pci bus slot that is used for the installation of wireless network card;

(5), be responsible for CPU and handle after the wireless transmission of data, and the wireless transport module that can use with other network equipment networking;

(6), be used for the data exchange operation of Ethernet, have the Ethernet data Switching Module that receives and send the function of data;

(7), ethernet module, comprise terminal device interface and connect the Ethernet transceiving chip plays signal transmission, impedance matching, waveform reparation, signal noise inhibition and high voltage buffer action between the two with terminal device interface, at it communication network transformer;

(8), the power module of powering by intrinsic safety type DC12V power supply.

Intrinsic safety type wireless switch designs based on general B3836.1-2000 and the essential safe type requirement GB3836.4-2000 of requiring of explosive gas atmosphere electrical installation, be mainly used in the work information transmission (the particularly dynamoelectric equipment of fully-mechanized mining working) of motion dynamoelectric equipment under the coal mine, this wireless exchange board also can be integrated with cable network, realizes whole coverings of Industrial Ethernet under the coal mine.The utility model adopts modularized design based on reliability, the security performance height of networking operation, adopts international top-brand technical grade chip, electric control element all adopts maturation, Reliable Products, be fit to the abominable operational environment under the coal mine, adopt low power dissipation design, and take the external power supply power supply.

The difference of the Industrial Ethernet that we and existing colliery are set up is:

(1) has been fruitful and just realized network struction and transfer of data under the conventional environment, this equipment designs based on general GB3836.1-2000 and the essential safe type requirement GB3836.4-2000 of requiring of explosive gas atmosphere electrical installation, is applicable to the message transmission of colliery underground equipment.

(2) the utility model adopts low power dissipation design, and takes external intrinsic safety electric source power supply, and the power consumption of entire equipment is lower than 10W, and running current is not more than 800mA.

(3) the utility model both can be used as the switch application in the wireless network, also can be used as AP and used.

The advantage that the utility model compared with prior art has is:

1, the utility model can be realized the wireless transmission of fixed equipment and athletic equipment work state information under the coal mine;

2, the utlity model has the wireless and routing function of realization wired, the wired switching of wireless converting.

3, the utlity model has multi-hop (Multi-Hop) function, data can be transmitted between a plurality of nodes effectively, and when a node was obstructed, data can be selected to hand on from other path, and, has adaptivity along with the increase and decrease of node or the change of existing node location.

4, the utility model is installed in and moves on the equipment, also can realize Network Transmission, is particularly suitable for as using on the mobile devices such as coal-winning machine, locomotive.

5, the utility model not only is fit to the coal-winning machine use, also can be used for status monitoring, loading condition analysis and failure diagnosis, the early warning of other coal mine machinery equipment, has very strong applicability.

6, the utility model not only is applicable under the coal mine, and is applicable to that other insecure environments uses.

Four, description of drawings

Fig. 1 is a structural representation of the present utility model.

Five, embodiment

As shown in Figure 1, a kind of intrinsic safety type wireless switch is characterized in that it comprises

(1), is responsible for core processing module U1 to the control and the communication of other module; 32 network processing units of IXP425ABD that it is produced for Intel Company, IXP425ABD 32 adopts embedded architecture, the Xscale of Intel risc core with 533 megahertzes, three network processor engines, two 10/100Base-T ethernet mac and two UART that are equipped with the MII/RMII interface; Working temperature is-40 ℃～85 ℃; IXP425ABD is a 32-bit microprocessor, port voltage 3.3V, and power consumption 1W has the characteristic of high-performance and low-power consumption, satisfies the safety of coal mines standard easily;

(2), program storage block U2, the U3 of 2 user data that are used to deposit tested user application, embedded OS and after system's power down, need to preserve; Program storage block U2, U3 are Synchronous Dynamic Random Access Memory (4M Words * 4banks * 16bits) at a high speed, clock frequency 143MHz, this chip can satisfy the industrial standard of PC, adopt low power dissipation design, operating voltage 3.3V, operating current is lower than 1mA, working temperature-40 ℃～80 ℃;

(3), the data memory module U4 of code execution and storage; Data memory module U4 is a kind of E28F1281J3C-50 Strata Flash flash memory that Intel Company produces, it is multi-level unit (the multi-level cell that is most widely used in the current market, MLC) product can allow single memory cell preserve 2 times data volume in same space; The Strata Flash of Intel is aided with flash data collector (FDI) software of Intel Company, makes the user can define code and adjustment data capacity, and need not to redesign hardware, change system;

(4), the Mini pci bus slot U5 that is used for the installation of wireless network card; It is the standard interface of the Mini PCI wireless network card that grows up on the basis of PCI;

(5), be responsible for CPU and handle after the wireless transmission of data, and the wireless transport module U6 that can use with other network equipment networking; Wireless transport module U6 is the Mini PCI-type3 wireless network card that Intel Company produces, and meets the IEEE802.11g standard fully, and compatible IEEE802.11b standard provides the data transmission rate that is up to 54Mbps;

(6), be used for the data exchange operation of Ethernet, have the Ethernet data Switching Module U7 that receives and send the function of data; Ethernet data Switching Module U7 is the ADM6996L Ethernet exchange control unit of Taiwan Infineon-ADMtek company, meets IEEE 802.3X ethernet standard; It has high-performance, low cost and high integrated characteristics, have 5 10/100Mbs that detect automatically complete/half-duplex port, one 10/100 medium access control (MAC), all ports are supported complete/half-duplex transfer of data of 10/100Mbs; This Switching Module embedded SRAM is used for packet buffering, uses for the storage that is optimized, and address table is divided into 256 pieces; Embedded intelligent algorithm can make them can 2048 MAC Address of identification;

(7), ethernet module U8, comprise terminal device interface U8-1 and connect the Ethernet transceiving chip plays signal transmission, impedance matching, waveform reparation, signal noise inhibition and high voltage buffer action between the two with terminal device interface, at it communication network transformer U8-2; Terminal device interface U8-1 is the RJ45 interface; Communication network transformer U8-2 is an ETHERNET 10/100BASE QUAD PORT TRANSFORMER communication network transformer;

(8), the power module U9 that powers by intrinsic safety type DC12V power supply; Mainboard operating voltage of the present utility model is 5V, and the main chip operating voltage is 5V, 3.3V and 1.3V power supply, need carry out voltage transformation; Power regulator IRF7416 and CSS1031 that power module U9 adopts InternationalRectifier company to produce are converted to 5V and 3.3V to DC12V, and then by power regulator LP3965ES, 3.3V are converted to 1.3V.

Operation principle of the present utility model is: when the RJ45 interface of data by terminal device interface U8-1 is transferred to this wireless exchange board, be transferred to core processing module U1 through communication network transformer U8-2 and Ethernet data Switching Module U7, the processing of data being analyzed and packed of program among core processing module U1 caller memory module U2 and the U3 is sent the packet after the packing into data memory module U4; Simultaneously the program among core processing module U1 caller memory module U2 and the U3 is carried out analytical calculation, gives the label of the destination that packet will reach, and this step has been determined the address that packet will arrive; Carry out route by the program among core processing module U1 caller memory module U2 and the U3 then and calculate, determine this packet sends to its destination node via which path, and to the data packet encryption; The U1 core processing module is by arriving wireless transport module U6 with Mini pci bus slot U5 with transfer of data, and wireless transport module sends this packet by wireless mode.

In like manner, when when data receive via wireless transport module U6, wireless transport module U6 is by Mini pci bus slot U5 and core processing module U1 communication, the processing of data being analyzed and packed of program among core processing module U1 caller memory module U2 and the U3 is sent the packet after the packing into data memory module U4; Simultaneously the program among core processing module U1 caller memory module U2 and the U3 is carried out analytical calculation, gives the label of the destination that packet will reach, and this step has been determined the address that packet will arrive; Carry out route by the program among core processing module U1 caller memory module U2 and the U3 then and calculate, determine this packet sends to its destination node via which path, and to the data packet encryption; Core processing module U1 transmits data by Ethernet data Switching Module U7 and communication network transformer U8 by the RJ45 port, realize having with other the communicating by letter of industrial equipment of RJ45 interface.

Major technique characteristics of the present utility model have: under the coal mine wireless transmission bandwidth greater than wireless transmission distance under 25Mbps, the coal mine more than or equal to 100m, temperature range be lower than 10W in-20～40 degree, operational environment humidity 〉=85%, power consumption, running current is not more than 800mA, mainboard operating voltage 5V, peak current less than 1A, it has routing function, wired switching is wireless and wireless converting is wired function.

Satisfy the intrinsic safety type design of safety regulations in coal mine on the utility model design principle, all at 5V and below the 5V, overall current is no more than 0.8A to the operating voltage of native system, and the port working voltage of acp chip has only 3.3V, and core voltage has only 1.8V, and is low in energy consumption.

Claims (2)

1. an intrinsic safety type wireless switch is characterized in that it comprises

(1), is responsible for core processing module (U1) to the control and the communication of other module;

(2), be used to deposit tested user application, embedded OS and the program storage block (U2, U3) of the user data that after system's power down, needs to preserve;

(3), the data memory module (U4) of code execution and storage;

(4), the pci bus slot (U5) that is used for the installation of wireless network card;

(5), be responsible for CPU and handle after the wireless transmission of data, and the wireless transport module (U6) that can use with other network equipment networking;

(6), be used for the data exchange operation of Ethernet, have the Ethernet data Switching Module (U7) that receives and send the function of data;

(7), ethernet module (U8), comprise terminal device interface (U8-1) and connect the Ethernet transceiving chip plays signal transmission, impedance matching, waveform reparation, signal noise inhibition and high voltage buffer action between the two with terminal device interface, at it communication network transformer (U8-2);

(8), the power module (U9) of powering by intrinsic safety type DC12V power supply.

2. intrinsic safety type wireless switch according to claim 2, it is characterized in that core processing module (U1) is IXP425ABD32 position network processing unit, it adopts embedded architecture, the Xscale of Intel risc core with 533 megahertzes, three network processor engines, two 10/100 Base-T Ethernet MAC and two UART that are equipped with the MII/RMII interface; Working temperature is-40 ℃～85 ℃; IXP425ABD is a 32-bit microprocessor, port voltage 3.3V, power consumption 1W;

Program storage block (U2, U3) is a Synchronous Dynamic Random Access Memory at a high speed, clock frequency 143MHz, and operating voltage 3.3V, operating current is lower than 1mA, working temperature-40 ℃～80 ℃;

Data memory module (U4) is an E28F1281J3C-50 Strata Flash flash memory;

Pci bus slot (U5) is the standard interface of Mini PCI wireless network card;

Wireless transport module (U6) is a Mini PCI-type3 wireless network card;

Ethernet data Switching Module (U7) is an ADM6996L Ethernet exchange control unit;

Terminal device interface (U8-1) is the RJ45 interface; Communication network transformer (U8-2) is ETHERNET 10/100 a BASEQUAD PORT TRANSFORMER communication network transformer;

Power module (U9) adopts power regulator IRF7416 and CSS1031 that DC12V is converted to 5V and 3.3V, and then by power regulator LP3965ES, 3.3V is converted to 1.3V.