CN202395933U

CN202395933U - Digital duplex remote networking wired interphone

Info

Publication number: CN202395933U
Application number: CN2012200198042U
Authority: CN
Inventors: 王剑峰; 刘振有; 吕云增
Original assignee: DAQING LIANSHENG TECHNOLOGY Co Ltd
Current assignee: DAQING LIANSHENG TECHNOLOGY Co Ltd
Priority date: 2012-01-17
Filing date: 2012-01-17
Publication date: 2012-08-22
Anticipated expiration: 2022-01-17

Abstract

The utility model discloses a digital duplex remote networking wired interphone, relating to the interphone technical field and comprising a main device (11), a CAN bus line concentration controller (22) and a sub device (33), wherein the main device (11) is connected with the CAN bus line concentration controller (22); the sub device (33) is connected with the intelligent node on each testing wellhead; and the intelligent node and the CAN bus line concentration controller (22) are connected with a cable through a CAN bus communication interface. The digital duplex remote networking wired interphone can realize the real time voice communication and voice communication protocol with security level between the operator on a well logging car and the operator above the well; and the device can stably work under slashing working condition, and has the advantages of being water-proof, moisture-proof, dust-proof and wide working temperature.

Description

Digital duplexing remote networking wire intercommunication

Technical field:

The utility model relates to the communication equipment technical field, relates in particular to a kind of digital duplexing remote networking wire intercommunication.

Background technology:

Various electrical equipment, machinery, hydraulic test are arranged in the well testing truck, so electromagnetic environment is complicated, the operating space is limited.When measuring operation, operator on the logging truck and well head staff need carry out real-time voice communication, obtain the state of aboveground operation at any time at oil-well testing vehicle, guarantee job safety.Analog wire intercommunication last or end syllable occurs when under this environment, using easily, produces ear-piercing noise behind the end of conversation, and therefore safety and the reliability to voice communication system proposed very high requirement.

The utility model content:

The purpose of the utility model provides a kind of digital duplexing remote networking wire intercommunication, and it can realize operator's and aboveground staff on the logging truck real-time speech communicating, has the voice communication agreement of security classification.The work that equipment is can be under the operating mode of harshness stable has waterproof, protection against the tide, dustproof, characteristics such as working temperature is wide.

In order to solve the existing problem of background technology; The utility model is to adopt following technical scheme: a kind of digital duplexing remote networking wire intercommunication; It comprises main equipment, CAN bus line concentration controller and slave unit; Main equipment is connected with CAN bus line concentration controller, and slave unit is connected with the intelligent node that is distributed in each shaft mouth test, and intelligent node is connected with cable through the CAN bus communication interface with CAN bus line concentration controller.

Described main equipment is installed in the well logging car body, and slave unit is installed near the well head of each operation, and main equipment, slave unit connect through a shielded multiconductor cable, and two positive-negative power lines are arranged in this cable, and shielding conductor uses as the CAN2.0 ground wire.

Described main equipment is one, and it also can be a plurality of cascade co-operation that slave unit can be one.

Described CAN bus communication interface adopts the aviation plug of Y2M series, guarantees the reliability that connects.

Described main equipment and slave unit set inside have electronic control circuit; Electronic control circuit comprises core controller, CODE chip, speech coding and decoding chip, CAN bus module and system power supply module; Core controller is connected with decoding chip, CAN bus module and system power supply module with CODE chip, speech coding respectively; Speech coding is connected with the CODE chip with decoding chip, and the CODE chip is connected with the system power supply module, and the system power supply module is connected with the CAN bus module.

The utility model is the special-purpose mobile unit of oil reservoir logging car, the product of design and development to solving the difficult problem of voice communication real-time between logging truck operator and the shaft mouth operation staff, and it has following beneficial effect:

1, equipment has full duplex and any handoff functionality of half duplex mode of communication, guarantees the various aboveground operation operating modes of product adaptation.

2, the simulation wire intercommunication uses in the serious space of electromagnetic interference and often sends ear-piercing last or end syllable, produces problems such as noise during switchgear.

3, the transmission of voice signal adopts digital transmission means to carry out, and effectively solves the above problem of simulation intercom.Compress speech is accomplished with the professional chip of employing that decompresses, and the speech data after the compression carries out transfer of data through the CAN2.0 bus.

4, devices communicating adopts any to the two-way CAN2.0 communication protocol of multiple spot, and the node number is 63 at most, increases trunking and can expand multichannel equipment.The communications linear distance is 1500 meters to the maximum, and the Long-distance Control of slave unit volume, the high and low temperature performance of equipment reach the excursion of adaptability-50 ℃-+120 ℃.

5, mobile unit increases the shockproof function design when circuit board is installed.

Complete machine had functions such as dustproof, anti-electromagnetic interference and electromagnetic radiation when 6, casing designed.

7, main equipment has in communicating by letter independently ID number with slave unit, guarantees equipment work uniqueness and stability.

Description of drawings:

Fig. 1 is the equipment mounting structure sketch map of the utility model,

Fig. 2 is the external structure sketch map of main equipment in the utility model,

Fig. 3 is the external structure sketch map of slave unit in the utility model,

Fig. 4 is the structural representation of electronic control circuit in the utility model.

Among the figure: main equipment 11, electronic control circuit 12, CAN bus line concentration controller 22, slave unit 33, core controller 1, CODE chip 2, speech coding and decoding chip 3, CAN bus module 4, system power supply module 5.

Embodiment:

With reference to Fig. 1-Fig. 4; This embodiment adopts following technical scheme: it comprises main equipment 11, CAN bus line concentration controller 22 and slave unit 33; Main equipment 11 is connected with CAN bus line concentration controller 22; Slave unit 33 is connected with the intelligent node that is distributed in each shaft mouth test, and intelligent node and CAN bus line concentration controller 22 are connected with cable through the CAN bus communication interface.

Described main equipment 11 is installed in the well logging car body, and slave unit 33 is installed near the well head of each operation, and main equipment 11, slave unit 33 connect through a shielded multiconductor cable, and two positive-negative power lines are arranged in this cable, and shielding conductor uses as the CAN2.0 ground wire.

Described main equipment 11 is one, and it also can be a plurality of cascade co-operation that slave unit 33 can be one.

Described main equipment 11 front panels are provided with 3 indicator lights, 1 self-lock switch (250V3A), 1 volume control potentiometer, 1 Mike's perforate; Wherein in 3 indicator lights; 1 is power supply indicator; 1 for showing the half duplex mode of communication of this machine equipment, 1 full-duplex communication pattern for this machine equipment of demonstration; 1 self-lock switch is a mains switch; 1 volume control potentiometer is this machine of control volume; Mike's perforate is for installing the Mike position, and this Mike receives this machine voice signal.

Described main equipment 11 side panel terminal blocks have 6 aviation plugs, and pin count is respectively 2 pins, 3 pins, 4 pins, 5 pins, 6 pins, and the phenomenon that occurs wiring error when preventing to install occurs.The aviation plug inside of two 5 pins is direct connection status.The 5A protective tube is the insurance of AC220V civil power; The definition of air plug is respectively AC220V input, DC24V output, CAN2.0 input and output interface, the output of 5W loud speaker; Reserve the aviation plug of one 6 pin in addition, act as 120 Ohmic resistance reserved opening of the connecting line of change circuit board program and selection CAN2.0.

Described slave unit 33 side panel terminal blocks have 5 aviation plugs, and pin count is 4 pins, 5 pins, 6 pins respectively, and the phenomenon that occurs wiring error when preventing to install occurs; The aviation plug inside of two 4 pins is direct connection status, and the aviation plug inside of two 5 pins is direct connection status; The 2A protective tube is the insurance of DC 24V direct voltage; The definition of air plug is respectively DC 24V input and output, CAN2.0 input and output interface; Reserve the aviation plug of one 6 pin in addition, act as 120 Ohmic resistance reserved opening of the connecting line of change circuit board program and selection CAN2.0.

Described main equipment 11 has electronic control circuit 12 with slave unit 33 set inside; Electronic control circuit 12 comprises core controller 1, CODE chip 2, speech coding and decoding chip 3, CAN bus module 4 and system power supply module 5; Core controller 1 is connected with decoding chip 3, CAN bus module 4 and system power supply module 5 with CODE chip 2, speech coding respectively; Speech coding is connected with CODE chip 2 with decoding chip 3; CODE chip 2 is connected with system power supply module 5, and system power supply module 5 is connected with CAN bus module 4.

This embodiment can realize operator's and aboveground staff on the logging truck real-time speech communicating, has the voice communication agreement of security classification.The work that equipment is can be under the operating mode of harshness stable has waterproof, protection against the tide, dustproof, characteristics such as working temperature is wide.

Claims

1. digital duplexing remote networking wire intercommunication; It is characterized in that it comprises main equipment (11), CAN bus line concentration controller (22) and slave unit (33); Main equipment (11) is connected with CAN bus line concentration controller (22); Slave unit (33) is connected with the intelligent node that is distributed in each shaft mouth test, and intelligent node is connected with cable through the CAN bus communication interface with CAN bus line concentration controller (22).

2. digital duplexing remote networking wire intercommunication according to claim 1; It is characterized in that described main equipment (11) is installed in the well logging car body; Slave unit (33) is installed near the well head of each operation; Main equipment (11), slave unit (33) connect through a shielded multiconductor cable, and two positive-negative power lines are arranged in this cable.

3. digital duplexing remote networking wire intercommunication according to claim 1; It is characterized in that described main equipment (11) and slave unit (33) set inside have electronic control circuit (12); Electronic control circuit (12) comprises core controller (1), CODE chip (2), speech coding and decoding chip (3), CAN bus module (4) and system power supply module (5); Core controller (1) is connected with decoding chip (3), CAN bus module (4) and system power supply module (5) with CODE chip (2), speech coding respectively; Speech coding is connected with CODE chip (2) with decoding chip (3); CODE chip (2) is connected with system power supply module (5), and system power supply module (5) is connected with CAN bus module (4).

4. digital duplexing remote networking wire intercommunication according to claim 1 is characterized in that described CAN bus communication interface adopts the aviation plug of Y2M series.

5. digital duplexing remote networking wire intercommunication according to claim 1 is characterized in that described main equipment (11) front panel is provided with 3 indicator lights, 1 self-lock switch, 1 volume control potentiometer, 1 Mike's perforate.

6. digital duplexing remote networking wire intercommunication according to claim 1; It is characterized in that described main equipment (11) side panel terminal block has 6 aviation plugs; Pin count is respectively 2 pins, 3 pins, 4 pins, 5 pins, 6 pins, and the aviation plug inside of two 5 pins is direct connection status.

7. digital duplexing remote networking wire intercommunication according to claim 1; It is characterized in that described slave unit (33) side panel terminal block has 5 aviation plugs; Pin count is 4 pins, 5 pins, 6 pins respectively; The aviation plug inside of two 4 pins is direct connection status, and the aviation plug inside of two 5 pins is direct connection status.