CN212343791U

CN212343791U - Comprehensive access control equipment of analog radio station of dispatching control system

Info

Publication number: CN212343791U
Application number: CN202021009274.4U
Authority: CN
Inventors: 姜登晓; 蔡贤博
Original assignee: Hangzhou Neolink Communication System Co ltd
Current assignee: Hangzhou Neolink Communication System Co ltd
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2021-01-12
Anticipated expiration: 2030-06-04

Abstract

The utility model relates to a comprehensive access control equipment of dispatch control system's analog radio station, including main control unit, provide the digital relay board of E1 interface and provide the wireless channel board of radio station interface, main control unit includes network interface, treater and switching logic, digital relay board and wireless channel board, through STBUS serial communication bus and main control unit communication connection, the data code stream that digital relay board received the E1 interface data and converted through E1 transceiver module, forward the wireless channel board through switching logic, or convert the IP data package that main control unit's network interface received into data code stream through the treater, forward the wireless channel board through switching logic; the E1 link or the IP link can be selected to be accessed according to project requirements; the radio station of an EM interface (balanced interface) can be accessed, and the radio station of an unbalanced interface can also be accessed; meanwhile, the radio station serial port can be accessed, so that the center can conveniently perform channel switching and other operations on the radio station, and the use of additional equipment is reduced.

Description

Comprehensive access control equipment of analog radio station of dispatching control system

Technical Field

The utility model belongs to the technical field of communication equipment, concretely relates to comprehensive access control equipment of dispatch control system's simulation radio station.

Background

At present, a maritime dispatching system and a dispatching seat are usually located in a command center of an urban area together, radio stations are located in base stations on ports or islands, the distance between the two base stations is usually dozens of kilometers or more, the two base stations are connected through an E1 link (2M link), and the center and the base stations respectively need a PCM device. The PCM equipment of the radio station is provided with a plurality of EM interfaces (balance interfaces) and network ports, a serial server is required to be added in a base station in order to realize the functions of checking the state of the radio station and controlling the channel switching of the radio station and the like in a command center, the voice and signaling of the radio station are accessed into the EM interfaces of the PCM equipment, the serial port of the radio station is accessed into the serial port of the serial server, the network port of the serial server is accessed into the network port of the PCM equipment, and a dispatching position of the command center carries out voice receiving and sending, state checking and channel switching control on the radio station which is far away from dozens of public places through the PCM equipment.

The base station and the center can only be connected by using an E1 link, the IP link which is widely used nowadays cannot be used, and a radio station interface of the PCM equipment only provides an interface, namely an EM interface (balanced interface), the radio station of the unbalanced interface cannot be directly accessed, and in addition, functions of controlling a radio station switching channel and the like can be realized only by adding a set of serial server on the base station side, so that the installation and debugging workload and the cost of building the station by a user are increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a flexibly used radio station access device which can be connected with a center through an E1 link and also can be connected with the center through an IP link; the radio station of an EM interface (balanced interface) can be accessed, and the radio station of an unbalanced interface can also be accessed; meanwhile, the radio station serial port can be accessed, so that the center can conveniently perform channel switching and other operations on the radio station, and the use of additional equipment is reduced.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

an integrated access control device of an analog station of a dispatch control system includes a main controller, a digital relay board providing an E1 interface, and a radio channel board providing a station interface,

the master controller includes a network interface, a processor and switching logic,

the digital relay board and the wireless channel board are in communication connection with the main controller through an STBUS serial communication bus, the digital relay board forwards data code streams, converted by the E1 transceiving module, received by the E1 interface to the wireless channel board through the switching logic, or converts IP data packets, received by the network interface of the main controller, into the data code streams through the processor, and forwards the data code streams to the wireless channel board through the switching logic.

Preferably, the main controller performs a freely combined access to the digital relay board and the wireless channel board according to configuration information in the processor. The main controller board is provided with a plurality of slot positions, the slot positions can be compatible with the wireless channel board and the digital relay board, the module boards can be selected to be inserted for use according to project requirements, the main controller board carries out corresponding setting on the function module boards according to configuration information, free combined access of the function module boards can be completed, and the equipment is convenient to use and expand.

Preferably, the wireless channel board comprises an ARM processor, a CODEC module, a conditioning circuit and a plurality of radio station interfaces, and analog voice sent by the radio station through the radio station interfaces is conditioned through the conditioning circuit and is sent to the main controller for processing through CODEC sampling and coding; the voice data sent by the main controller is decoded and converted into analog quantity by the CODEC, and is sent to the radio station through the radio station interface after being conditioned by the conditioning circuit.

Preferably, signaling and serial port information between the main controller and the radio station are forwarded through the ARM processor, a serial port of the radio station can be accessed, the center can conveniently perform channel switching and other operations on the radio station, an additional serial server is not needed, and installation and debugging workload and cost of station building of a user are reduced.

Preferably, the station interface provides access modes in a balanced mode and an unbalanced mode, and stations of the balanced interface and stations of the unbalanced interface can be directly accessed.

Preferably, a DSP processor is further disposed between the processor and the switching logic, and is configured to perform format conversion on the voice data received by the network interface. The voice data transmitted from the network interface is not in PCM format, so that the voice data needs to be converted into PCM format by the DSP processor and then sent to the wireless channel control board through the switching logic.

The utility model discloses interesting technological effect: the connection mode (E1 link or IP link) of the access center can be selected according to project requirements; the radio station interface is flexible, and the radio stations of a balanced interface type and an unbalanced interface type can be accessed simultaneously; the serial port of the radio station can be accessed, the radio station control functions such as channel switching of the radio station and the like are realized, and the installation and debugging workload and the cost of building the station by a user are saved; new functions can be added through the extended function module board as required, and equipment is convenient to upgrade.

Drawings

FIG. 1 is a schematic diagram of the operation of the apparatus of the present invention using the E1 link;

fig. 2 is a schematic diagram of the operation of the device using the IP link according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

The following describes the invention in further detail with reference to the attached drawings:

an integrated access control device of an analog radio station of a dispatching control system comprises a main controller, a digital relay board providing an E1 interface and a wireless channel board providing a radio station interface, wherein the main controller comprises a network interface, a processor and an exchange logic, the digital relay board and the wireless channel board are in communication connection with the main controller through an STBUS serial communication bus, the digital relay board converts data received by the E1 interface into a data code stream through an E1 transceiver module, the data code stream is forwarded to the wireless channel board through the exchange logic, or an IP data packet received by the network interface of the main controller is converted into the data code stream through the processor and is forwarded to the wireless channel board through the exchange logic, the processor adopts a Feichar POWERPC processor and is communicated with a central society through the network interface or the E1 interface, parameter setting of a receiving central device is received, and state and data are reported to the central device, and the system is communicated with the DSP processor and the switching logic through the STBUS bus, controls voice data switching and externally monitors a circuit module.

The main controller performs free combined access to the digital relay board and the wireless channel board according to the configuration information in the processor. The main controller board is provided with a plurality of slot positions, the slot positions can be compatible with the wireless channel board and the digital relay board, the module boards can be selected to be inserted for use according to project requirements, the main controller board carries out corresponding setting on the function module boards according to configuration information, free combined access of the function module boards can be completed, and the equipment is convenient to use and expand.

The wireless channel board comprises an ARM processor, a CODEC module, a conditioning circuit and a plurality of radio station interfaces, and analog voice sent by the radio station through the radio station interfaces is conditioned through the conditioning circuit and is sent to the main controller for processing through CODEC sampling codes; the voice data sent by the main controller is decoded and converted into analog quantity by the CODEC, and is sent to the radio station through the radio station interface after being conditioned by the conditioning circuit.

Signaling and serial port information between main control unit and the radio station are forwardded through the ARM treater, can insert the electric station serial port, and the center of being convenient for carries out operations such as channel switch to the radio station, need not to increase extra serial servers, reduces installation and debugging work load and the cost that the user built the station.

The radio station interface provides access modes of a balanced mode and an unbalanced mode, and the radio stations of the balanced interface and the unbalanced interface can be directly accessed.

And a DSP processor is arranged between the processor and the switching logic and is used for carrying out format conversion on the voice data received by the network interface. The voice data transmitted from the network interface is not in PCM format, so that the voice data needs to be converted into PCM format by the DSP processor and then sent to the wireless channel control board through the switching logic.

The following is described in connection with the actual data communication process:

as shown in fig. 1, the E1 link communication is used, taking the example that a center initiates a call to a base station:

1. the central seat equipment presses down the PTT to initiate a call, and the central controller sends voice and signaling to the base station through an E1 link;

2. an E1 interface of a digital relay board in the base station side equipment receives data of a link, and an E1 transceiving module demodulates the received data and sends the demodulated data to a main controller through an STBUS serial communication bus;

3. the exchange logic of the main controller receives the data, and splits the data in the STBUS according to the information configured by the processor and sends the data to the corresponding wireless channel board;

4. after the wireless channel board receives the data, the ARM processor sends the voice to a channel corresponding to the CODEC for decoding according to the time slot number, amplitude adjustment is carried out through a conditioning circuit and the voice is sent to a corresponding radio station interface, and signaling data are taken out from the data by the ARM processor and sent to an interface corresponding to a serial port of the radio station;

as shown in fig. 2, using IP link communication, taking the example that the center initiates a call to the base station:

1. the central seat equipment presses the PTT to initiate a call, and the central controller sends voice and signaling to the base station through the IP link;

2. after a processor of a main controller in the base station side equipment receives a network data packet through a network interface, a voice data packet sends DSP (digital signal processor) through an HPI (high performance packet interface) interface to be decoded into PCM (pulse code modulation) voice data, the PCM voice data is sent to switching logic through an MCBSP (micro controller bus station) interface, and a signaling data packet takes out a signaling and then is sent to the switching logic through a TDM (time division multiplexing) interface;

3. the exchange logic of the main controller receives the data and the signaling, and sends the voice data and the signaling data to the corresponding wireless channel board according to the information configured by the processor;

4. after the wireless channel board receives the data, the ARM processor sends the voice to the channel corresponding to the CODEC for decoding according to the time slot number, the amplitude is adjusted by the conditioning circuit and sent to the corresponding radio station interface, and the signaling is sent to the interface corresponding to the radio station serial port from the data by the ARM processor.

Claims

1. An integrated access control apparatus of an analog station of a dispatch control system, characterized in that: including a main controller, a digital relay board providing an E1 interface and a radio channel board providing a station interface,

2. An integrated access control apparatus of an analog station of a schedule control system of claim 1, wherein: and the main controller performs free combined access on the digital relay board and the wireless channel board according to the configuration information in the processor.

3. An integrated access control apparatus of an analog station of a schedule control system according to claim 1 or 2, characterized in that: the wireless channel board comprises an ARM processor, a CODEC module, a conditioning circuit and a plurality of radio station interfaces, and analog voice sent by the radio station through the radio station interfaces is conditioned by the conditioning circuit and is sent to the main controller for processing through CODEC sampling codes; the voice data sent by the main controller is decoded and converted into analog quantity by the CODEC, and is sent to the radio station through the radio station interface after being conditioned by the conditioning circuit.

4. An integrated access control apparatus of an analog station of a schedule control system of claim 3, characterized in that: and the signaling and the serial port information between the main controller and the electric station are forwarded through the ARM processor.

5. An integrated access control apparatus of an analog station of a schedule control system of claim 3, characterized in that: the station interface provides access in a balanced and unbalanced manner.

6. An integrated access control apparatus of an analog station of a schedule control system of claim 1, wherein: and a DSP processor is arranged between the processor and the switching logic and is used for carrying out format conversion on the voice data received by the network interface.