CN107979484B - Scheduling system and method with multiple communication functions - Google Patents

Scheduling system and method with multiple communication functions Download PDF

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Publication number
CN107979484B
CN107979484B CN201610942184.2A CN201610942184A CN107979484B CN 107979484 B CN107979484 B CN 107979484B CN 201610942184 A CN201610942184 A CN 201610942184A CN 107979484 B CN107979484 B CN 107979484B
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China
Prior art keywords
interface
channel
voice
switching
circuit
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CN107979484A (en
Inventor
尧小军
石华武
朱翔
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Beijing Jiaxun Feihong Electrical Co Ltd
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Beijing Jiaxun Feihong Electrical Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/005—Interface circuits for subscriber lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
    • H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
    • H04M3/302—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop using modulation techniques for copper pairs
    • H04M3/303—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop using modulation techniques for copper pairs and using PCM multiplexers, e.g. pair gain systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/0024—Services and arrangements where telephone services are combined with data services
    • H04M7/0051—Services and arrangements where telephone services are combined with data services where the data service is a multimedia messaging service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/12—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal
    • H04M7/1205—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal where the types of switching equipement comprises PSTN/ISDN equipment and switching equipment of networks other than PSTN/ISDN, e.g. Internet Protocol networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/804—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
    • H04N9/806—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components with processing of the sound signal

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Engineering & Computer Science (AREA)
  • Telephonic Communication Services (AREA)

Abstract

The invention provides a dispatching system and a method with multiple communication functions, which determine whether to switch audio and video channels by detecting the communication quality of a wireless interface and an Ethernet RJ45 interface, perform voice switching according to an E1 interface and a public switched telephone network PSTN telephone RJ11 interface, switch an I2S voice channel to a channel 2 according to the switching of the audio and video channels, switch an I2S voice channel to a channel 1 according to the voice switching, and control the switching of a handle through a relay. The invention can immediately switch to the other path for communication under the condition that a certain communication interface has a fault, ensures the communication reliability, and supports both audio and video scheduling and voice scheduling.

Description

Scheduling system and method with multiple communication functions
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a scheduling system and method with multiple communications functions.
Background
In the scheduling system, the scheduling terminal is an important Component of the scheduling system, the scheduling terminal generally has functions of single call, group call, conference, forced insertion, forced detachment and the like, the scheduling terminal supporting the video function generally adopts a PC (Personal Computer), the PC does not have a parallel data address bus, is not convenient for directly controlling an external circuit, and generally supports an E1 interface by inserting a pci (peripheral Component interface) interface card. This approach has high scheduling terminal cost, poor reliability, and is not convenient for miniaturization and design into more specialized scheduling terminals.
Disclosure of Invention
The invention aims to provide a scheduling system and a scheduling method with multiple communication functions, which can immediately switch to another path for communication under the condition that a certain communication interface has a fault, ensure the communication reliability, and support both audio and video scheduling and voice scheduling.
In a first aspect, an embodiment of the present invention provides a scheduling system with multiple communication functions, where the system includes an ARM processor, a field programmable gate array FPGA, and a voice circuit, where the voice circuit includes a phone circuit and a handle;
the ARM processor is used for sending an Ethernet data packet to a background server through an Ethernet RJ45 interface, or sending high-level data link control HDLC data or pulse code modulation PCM voice data to the FPGA, determining whether to switch audio and video channels or not by detecting the communication quality of a wireless interface and the Ethernet RJ45 interface, and switching voice according to an E1 interface and a Public Switched Telephone Network (PSTN) telephone RJ11 interface;
the FPGA is used for sending the time division multiplexing TDM to the background server through the E1 interface or sending the PCM voice data to the background server through the wireless or Ethernet interface, switching an I2S voice channel to a channel 2 according to the switching of the audio/video channel, and switching an I2S voice channel to a channel 1 according to the voice switching;
the telephone circuit is used for controlling the handle to be switched to the channel 4 under the condition of power-on, and controlling the handle to be switched to the channel 3 under the condition of power-off.
With reference to the first aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, where the ARM processor includes a central processing unit CPU, and the system further includes:
the CPU is used for switching to the wireless interface and sending first switching information to the FPGA under the condition that the Ethernet RJ45 interface is disconnected;
the FPGA is also used for detecting that the current state is the wireless interface according to the first switching information and switching the I2S voice channel to a channel 2 according to the wireless interface;
the telephone circuit is also used for controlling the handle to be switched to the passage 4 through a relay.
With reference to the first possible implementation manner of the first aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, where the CPU is further configured to send second switching information to the FPGA without the wireless interface and the RJ45 interface;
the FPGA is further used for detecting that the current state is the E1 interface according to the second switching information, and switching the I2S voice channel to the channel 1 according to the E1 interface;
the telephone circuit is also used for controlling the handle to be switched to the passage 4 through the relay.
With reference to the second possible implementation manner of the first aspect, the embodiment of the present invention provides a third possible implementation manner of the first aspect, and the phone circuit is further configured to connect a telephone line to the RJ11 interface of the PSTN telephone in case of power failure, and control the handle to switch to the path 3 through the relay.
With reference to the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, where the ARM processor includes a central processing unit CPU, and the system further includes:
and the LCD control panel is used for displaying the data information sent by the CPU through a low-voltage differential signal LVDS interface.
With reference to the first aspect, an embodiment of the present invention provides a fifth possible implementation manner of the first aspect, where the system further includes:
the camera video acquisition circuit is used for acquiring video data information.
In a second aspect, the present invention provides a scheduling method with multiple communication functions, the method comprising:
an Ethernet data packet is sent to a background server through an Ethernet RJ45 interface, or high-level data link control HDLC data or pulse code modulation PCM voice data is sent to an FPGA;
determining whether to switch audio and video channels by detecting the communication quality of a wireless interface and the RJ45 interface of the Ethernet, and switching voice according to an E1 interface and a Public Switched Telephone Network (PSTN) telephone RJ11 interface;
sending the TDM voice data to the background server through the E1 interface or sending the PCM voice data to the background server through the wireless or Ethernet interface;
switching an I2S voice channel to a channel 2 according to the switching of the audio and video channel, and switching the I2S voice channel to a channel 1 according to the voice switching;
in case of power-up the control handle switches to path 4 and in case of power-down the control handle switches to path 3.
With reference to the second aspect, an embodiment of the present invention provides a first possible implementation manner of the second aspect, where the method further includes:
under the condition that the Ethernet RJ45 interface is disconnected, switching to the wireless interface and sending first switching information to the FPGA;
detecting that the current state is the wireless interface according to the first switching information, and switching the I2S voice channel to channel 2 according to the wireless interface;
the handle is controlled by a relay to switch to the passage 4.
With reference to the first possible implementation manner of the second aspect, an embodiment of the present invention provides a second possible implementation manner of the second aspect, where the method further includes:
sending second switching information to the FPGA without the wireless interface and the RJ45 Ethernet interface;
detecting that the current state is the E1 interface according to the second switching information, and switching the I2S voice path to the path 1 according to the E1 interface;
the handle is controlled by the relay to switch to the passage 4.
With reference to the second possible implementation manner of the second aspect, an embodiment of the present invention provides a third possible implementation manner of the second aspect, where the method further includes:
in case of power failure, a telephone line is connected to the RJ11 interface of the PSTN telephone, and the switch of the handle to path 3 is controlled by the relay.
The invention provides a dispatching system and a method with multiple communication functions, which determine whether to switch audio and video channels by detecting the communication quality of a wireless interface and an Ethernet RJ45 interface, and switch voice according to an E1 interface and a public switched telephone network PSTN telephone RJ11 interface, switch an I2S voice channel to a channel 2 according to the switching of the audio and video channels, switch an I2S voice channel to a channel 1 according to the switching of the voice, and control the switching of a handle through a relay, thereby immediately switching to another channel for communication under the condition that a certain communication interface has a fault, ensuring the communication reliability, and supporting both audio and video dispatching and voice dispatching.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic diagram of a scheduling system with multiple communication functions according to an embodiment of the present invention;
fig. 2 is a schematic diagram of another scheduling system with multiple communication functions according to an embodiment of the present invention;
FIG. 3 is a functional diagram of clock selection according to an embodiment of the present invention;
fig. 4 is a flowchart of a scheduling method with multiple communication functions according to an embodiment of the present invention.
Description of reference numerals:
10-a voice circuit; 11-telephone circuitry; 12-CODEC chip circuitry;
13-a power amplifier circuit; 14-MIC; 20-E1 interface circuitry;
a 21-E1 interface; 30-FPGA; a 40-3G/4G module;
41-a wireless interface; 50-SWITCH chip; 51-ethernet RJ45 interface;
60-ARM processor; 70-camera video acquisition circuit; 15-a handle;
16-PSTN telephone RJ11 interface; 80-LCD liquid crystal display control panel + touch screen control panel.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The existing scheduling terminal generally adopts a PC (personal computer), and because the PC does not have a parallel data address bus, the PC is not convenient for directly controlling an external circuit, and a PCI (peripheral component interconnect) interface card is generally inserted to support an E1 interface. This approach has high scheduling terminal cost, poor reliability, and is not convenient for miniaturization and design into more specialized scheduling terminals. The invention provides a dispatching system and a method with multiple communication functions, which determine whether to switch audio and video channels by detecting the communication quality of a wireless interface and an Ethernet RJ45 interface, and switch voice according to an E1 interface and a public switched telephone network PSTN telephone RJ11 interface, switch an I2S voice channel to a channel 2 according to the switching of the audio and video channels, switch an I2S voice channel to a channel 1 according to the switching of the voice, and control the switching of a handle through a relay, thereby immediately switching to another channel for communication under the condition that a certain communication interface has a fault, ensuring the communication reliability, and supporting both audio and video dispatching and voice dispatching. The following is a detailed description by way of example.
Fig. 1 is a schematic diagram of a scheduling system with multiple communication functions according to an embodiment of the present invention.
Referring to fig. 1, an ARM Processor 60 is connected to a camera video acquisition circuit 70 through an mipi (mobile Industry Processor interface), the ARM Processor 60 is connected to an SWITCH chip 50 through an rgmii (reduced Gigabit Media Independent interface), the SWITCH chip 50 is connected to an ethernet RJ45 interface, the ARM Processor 60 is connected to a 3G/4G module 40 through a USB interface, the 3G/4G module 40 is connected to a wireless interface 41, the ARM Processor 60 is connected to an E1 interface circuit 20 through a TDM (time division multiplexing mode), an I2S (Inter-IC Sound Bus) Data, and an FS/bcb (frame synchronization/bit clock), and an FPGA (Field-Programmable Gate Array) 30 is connected to an E1 interface circuit 20 through a TDM (time division multiplexing mode), and the E1 interface circuit 20 is connected to an E1 interface circuit.
The voice circuit 10 includes a phone circuit 11, a CODEC chip circuit 12, a power amplifier circuit 13, an MIC (microphone) 14 and a handle 15, wherein, a PSTN phone RJ11 interface 16 is connected with the phone circuit 11, the CDDEC chip circuit 12 is connected with an MIC14, the power amplifier circuit 13 and an FPGA respectively, and the phone circuit 11 is connected with the ARM processor 60 through a UART (Universal Asynchronous Receiver/Transmitter ) serial port.
An ARM processor 60, configured to send an ethernet packet to a background server through an ethernet RJ45 interface 51, or send HDLC (High-Level Data Link Control) Data or PCM (Pulse Code Modulation) voice Data to the FPGA30, and determine whether to perform switching of an audio/video channel by detecting communication quality of the wireless interface 41 and the ethernet RJ45 interface 51, and perform voice switching according to the E1 interface 21 and the PSTN (Public Switched Telephone Network) RJ11 interface 16;
specifically, the ARM processor of the high-performance Cortex a 94 core is the core of the dispatch system, and is responsible for communicating with the background server through the ethernet, completing audio and video call and control, and passing ethernet packets.
When communicating with the backend server through the E1 interface 21, the ARM processor 60 forwards PCM (Pulse Code Modulation) voice data through the FPGA 30.
When communicating with the backend server through the wireless interface 41, the PCM voice data is forwarded through the FPGA 30.
The switching of audio and video channels between the wireless interface 41 and the interface 51 of the ethernet RJ45 is completed by the CPU, and the CPU determines whether to switch the channels by detecting the communication quality between the wireless interface 41 and the interface 51 of the ethernet RJ45, and preferentially selects the interface 51 of the ethernet RJ45 for communication.
The FPGA30 is used for sending TDM voice data to a background server through an E1 interface 21 or sending PCM voice data to the background server through a wireless interface 41, switching an I2S voice channel to a channel 2 according to the switching of an audio/video channel, and switching an I2S voice channel to a channel 1 according to the switching of voice;
and a telephone circuit 11 for switching the control handle to the path 4 in case of power-on and switching the control handle to the path 3 in case of power-off.
Here, the phone circuit 11 includes a relay, and switching of the handle is controlled by the relay.
According to an exemplary embodiment of the present invention, ARM processor 60 includes a central processor CPU, and the system further includes:
the CPU is used for switching to the wireless interface 41 and sending first switching information to the FPGA30 under the condition that the Ethernet RJ45 interface 51 is disconnected;
the FPGA30 is further configured to detect that the current state is the wireless interface 41 according to the first switching information, and switch the I2S voice channel to the channel 2 according to the wireless interface 41;
the phone circuitry is also used to switch to the channel 4 via the relay control handle 15.
Here, in the case of ethernet disconnection, the CPU immediately switches to the wireless interface 41, the handle 15 voice path switches to 4, and the I2S voice path in the FPGA30 switches to 2.
According to an exemplary embodiment of the invention, the system further comprises:
the CPU is also configured to send second switching information to the FPGA30 without the wireless interface 41 and the ethernet RJ45 interface 51;
the FPGA30 is further used for detecting that the current state is the E1 interface according to the second switching information, and switching the I2S voice channel to the channel 1 according to the E1 interface;
the phone circuit 11 is also used to switch to the channel 4 via the relay control handle 15.
Specifically, without the wireless interface 41 and the RJ45 interface 51 over ethernet, voice communication can be performed using the E1 interface 21, the handle 15 switched to 4, and the I2S voice path in the FPGA switched to path 1.
Phone circuit 11 is also used to connect a telephone line to PSTN telephone RJ11 interface 16 in the event of a power outage, switched to path 3 by relay control handle 15, according to an exemplary embodiment of the present invention.
In particular, voice calls can also be made using the telephone part in the event of a power outage, in which case the telephone line is connected to the RJ11 interface 16 of the PSTN telephone and the handle 15 is switched to path 3 in the event of a power outage.
Here, in the case of a network outage of the ethernet RJ45 interface 51, in the case of no wireless interface 41 and ethernet RJ45 interface 51, and in the case of a power outage, the I2S voice channel switching and the handle 15 switching in the FPGA can be referred to specifically in fig. 2.
According to an exemplary embodiment of the invention, the ARM processor comprises a central processing unit CPU, the system further comprising:
the LCD panel + the touch panel 80 is used for displaying data information sent by the CPU through an LVDS (Low-Voltage Differential Signaling) interface.
According to an exemplary embodiment of the invention, the system further comprises:
and a camera video acquisition circuit 70 for acquiring video data information.
Specifically, when communication is performed using the wireless interface 41 and the RJ45 interface 51 of the ethernet, the CPU and the CODEC chip circuit 12 are both set to the I2S slave mode, and as shown in fig. 3, FS (frame synchronization) and BCLK (bit clock) are given by the master clock of the FPGA30 via the PLL2 (Phase Locked Loop 2).
In the case of communication using E1, the CPU and CODEC chip circuit 12 are also set to I2S slave mode, and FS and BCLK of the CPU and CODEC chip circuit are given by E8K clock of E1 via PLL1 (Phase Locked Loop 1) in order to synchronize with the clock of E1.
The E1 interface 21 receives TDM voice data sent by the background server and is compressed A-law 8K 8Bit codes, and the I2S voice data of the CODEC chip circuit is 44.1K 16Bit codes, so that sampling rate conversion is needed in the FPGA.
The invention provides a dispatching system with multiple communication functions, which determines whether to switch audio and video channels or not by detecting the communication quality of a wireless interface and an Ethernet RJ45 interface, switches voice according to an E1 interface and a public switched telephone network PSTN telephone RJ11 interface, switches an I2S voice channel to a channel 2 according to the switching of the audio and video channels, switches an I2S voice channel to a channel 1 according to the switching of the voice, and controls the switching of a handle through a relay, so that under the condition that a certain communication interface has a fault, the other channel is immediately switched to carry out communication, the communication reliability is ensured, and the dispatching system not only supports audio and video dispatching, but also supports voice dispatching.
Fig. 4 is a flowchart of a scheduling method with multiple communication functions according to an embodiment of the present invention.
Referring to fig. 4, in step S401, an ethernet packet is sent to a backend server through an ethernet RJ45 interface, or high-level data link control HDLC data or pulse code modulation PCM voice data is sent to an FPGA;
step S402, determining whether to switch audio and video channels by detecting the communication quality of the wireless interface and the Ethernet RJ45 interface, and switching voice according to the E1 interface and the public switched telephone network PSTN telephone RJ11 interface;
step S403, sending the TDM voice data to a background server through an E1 interface or sending the PCM voice data to the background server through a wireless interface;
step S404, switching the I2S voice channel to channel 2 according to the switching of the audio/video channel, and switching the I2S voice channel to channel 1 according to the switching of the voice;
in step S405, the control handle is switched to the path 4 in the case of power-on, and is switched to the path 3 in the case of power-off.
According to an exemplary embodiment of the invention, the method further comprises:
under the condition that the Ethernet RJ45 interface is disconnected, switching to the wireless interface and sending first switching information to the FPGA;
detecting that the current state is the wireless interface according to the first switching information, and switching the I2S voice channel to channel 2 according to the wireless interface;
the handle is controlled by a relay to switch to the passage 4.
According to an exemplary embodiment of the invention, the method further comprises:
sending second switching information to the FPGA without the wireless interface and the RJ45 Ethernet interface;
detecting that the current state is the E1 interface according to the second switching information, and switching the I2S voice path to the path 1 according to the E1 interface;
the handle is controlled by the relay to switch to the passage 4.
According to an exemplary embodiment of the invention, the method further comprises:
in case of power failure, a telephone line is connected to the RJ11 interface of the PSTN telephone, and the switch of the handle to path 3 is controlled by the relay.
The apparatus provided by the embodiment of the present invention may be specific hardware on the device, or software or firmware installed on the device, etc. The device provided by the embodiment of the present invention has the same implementation principle and technical effect as the method embodiments, and for the sake of brief description, reference may be made to the corresponding contents in the method embodiments without reference to the device embodiments. It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the foregoing systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or talking connection may be through some talking interfaces, indirect coupling or talking connection of devices or units, and may be in electric, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments provided by the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention.
And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus once an item is defined in one figure, it need not be further defined and explained in subsequent figures, and moreover, the terms "first", "second", "third", etc. are used merely to distinguish one description from another and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the present invention in its spirit and scope. Are intended to be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A dispatching system with multiple communication functions is characterized by comprising an ARM processor, a field programmable gate array FPGA and a voice circuit, wherein the voice circuit comprises a phone circuit and a handle;
the ARM processor sends an Ethernet data packet to a background server through an Ethernet RJ45 interface, or sends high-level data link control HDLC data or pulse code modulation PCM voice data to the FPGA, determines whether to switch audio and video channels or not by detecting the communication quality of a wireless interface and the Ethernet RJ45 interface, and switches voice according to an E1 interface and a public switched telephone network PSTN telephone RJ11 interface;
the FPGA is used for sending time division multiplexing TDM voice data to the background server through the E1 interface or sending the PCM voice data to the background server through the wireless interface or the Ethernet interface, switching an I2S voice channel to a channel 2 according to the switching of the audio/video channel, and switching an I2S voice channel to a channel 1 according to the voice switching;
the telephone circuit is used for controlling the handle to be switched to the channel 4 under the condition of power-on, and controlling the handle to be switched to the channel 3 under the condition of power-off;
wherein, the channel 1 is a channel between a CODEC chip circuit and the E1 interface, the channel 2 is a channel between the CODEC chip circuit and a CPU, the channel 3 is a channel between the handle and the phone circuit, and the channel 4 is a channel between the handle and the CODEC chip circuit;
the voice circuit includes the CODEC chip circuit.
2. The dispatch system with multiple communication functions, as claimed in claim 1, wherein the ARM processor comprises a central processing unit CPU, the system further comprising:
the CPU is used for switching to the wireless interface and sending first switching information to the FPGA under the condition that the Ethernet RJ45 interface is disconnected;
the FPGA is further used for detecting that the current state is switched to the wireless interface according to the first switching information, and switching the I2S voice channel to a channel 2 according to the wireless interface;
the telephone circuit is also used for controlling the handle to be switched to the passage 4 through a relay.
3. The dispatch system with multiple communication functions of claim 2, further comprising:
the CPU is also used for sending second switching information to the FPGA under the condition that the wireless interface and the RJ45 interface are not available;
the FPGA is further used for detecting that the current state is switched to the E1 interface according to the second switching information, and switching the I2S voice channel to the channel 1 according to the E1 interface;
the telephone circuit is also used for controlling the handle to be switched to the passage 4 through the relay.
4. The dispatch system according to claim 3, wherein the telephone circuitry is further configured to connect a telephone line to the RJ11 interface of the PSTN telephone in the event of a power failure, the relay controlling the handle to switch to lane 3.
5. The dispatch system with multiple communication functions, as claimed in claim 1, wherein the ARM processor comprises a central processing unit CPU, the system further comprising:
and the LCD control panel is used for displaying the data information sent by the CPU through a low-voltage differential signal LVDS interface.
6. The dispatch system with multiple communication functions of claim 1, further comprising:
the camera video acquisition circuit is used for acquiring video data information.
7. A scheduling method having multiple communication functions, the method comprising:
the ARM processor sends an Ethernet data packet to a background server through an Ethernet RJ45 interface, or sends high-level data link control (HDLC) data or Pulse Code Modulation (PCM) voice data to the FPGA;
and determining whether to switch audio and video channels by detecting the communication quality of a wireless interface and the Ethernet RJ45 interface, and performing voice switching according to an E1 interface and a public switched telephone network PSTN telephone RJ11 interface;
the FPGA sends the TDM voice data to the background server through the E1 interface or sends the PCM voice data to the background server through the wireless interface or the Ethernet interface;
switching an I2S voice channel to a channel 2 according to the switching of the audio and video channel, and switching an I2S voice channel to a channel 1 according to the voice switching;
the control handle is switched to the channel 4 under the condition that the telephone circuit is powered on, and the control handle is switched to the channel 3 under the condition that the telephone circuit is powered off;
wherein, the channel 1 is a channel between a CODEC chip circuit and the E1 interface, the channel 2 is a channel between the CODEC chip circuit and a CPU, the channel 3 is a channel between the handle and the phone circuit, and the channel 4 is a channel between the handle and the CODEC chip circuit;
the voice circuit includes the CODEC chip circuit.
8. The method for scheduling with multiple communication functions as claimed in claim 7, wherein the method further comprises:
the CPU switches to the wireless interface and sends first switching information to the FPGA under the condition that the Ethernet RJ45 interface is disconnected;
the FPGA detects that the current state is switched to the wireless interface according to the first switching information, and switches the I2S voice channel to a channel 2 according to the wireless interface;
the telephone circuit controls the handle to be switched to the passage 4 through a relay.
9. The method for scheduling with multiple communication functions as claimed in claim 8, wherein the method further comprises:
the CPU sends second switching information to the FPGA under the condition that the wireless interface and the RJ45 interface are not available;
the FPGA detects that the current state is switched to the E1 interface according to the second switching information, and switches the I2S voice channel to the channel 1 according to the E1 interface;
the telephone circuit controls the handle to be switched to the passage 4 through the relay.
10. The method for scheduling with multiple communication functions of claim 9, further comprising:
the telephone circuit connects the telephone line to the RJ11 interface of the PSTN telephone in case of power failure, and the relay controls the handle to switch to the path 3.
CN201610942184.2A 2016-10-25 2016-10-25 Scheduling system and method with multiple communication functions Expired - Fee Related CN107979484B (en)

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