CN202077042U - Wired-wireless co-network operating device - Google Patents

Wired-wireless co-network operating device Download PDF

Info

Publication number
CN202077042U
CN202077042U CN201020208656XU CN201020208656U CN202077042U CN 202077042 U CN202077042 U CN 202077042U CN 201020208656X U CN201020208656X U CN 201020208656XU CN 201020208656 U CN201020208656 U CN 201020208656U CN 202077042 U CN202077042 U CN 202077042U
Authority
CN
China
Prior art keywords
module
wireless
interface
wire
interface module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201020208656XU
Other languages
Chinese (zh)
Inventor
王�琦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BEIJING RAYTRANS DIGITAL TECHNOLOGY Co Ltd
Original Assignee
BEIJING RAYTRANS DIGITAL TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BEIJING RAYTRANS DIGITAL TECHNOLOGY Co Ltd filed Critical BEIJING RAYTRANS DIGITAL TECHNOLOGY Co Ltd
Priority to CN201020208656XU priority Critical patent/CN202077042U/en
Application granted granted Critical
Publication of CN202077042U publication Critical patent/CN202077042U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Abstract

The utility model discloses a wired-wireless co-network operating device, which comprises a radio station interface module, a wired terminal interface module, a local call public network interface module, a DSP (Digital Signal Processing) module, a MCU (Micro Control Unit) module, a transmission link interface module and an LCD (Liquid Crystal Display) human-machine interaction module. With the adoption of the wired-wireless co-network operating device provided by the utility model, a wired signal is transmitted in a wireless or broadcast mode through a wired-to-wireless technology so that the conversion from wire communication to wireless communication is realized and conversion integrated with a wireless cluster radio station, a wired terminal and a local public network is realized; three cluster networks are integrated so as to expand a communication range; therefore, an urgent requirement for commanding and scheduling cluster communication networks increased day by day is satisfied.

Description

A kind of device of wire and wireless common network operation
Technical field
The utility model relates to communication technical field, especially a kind of device of wire and wireless common network operation.
Background technology
In existing wire and wireless conversion products, structure is single, has only realized the signaling transfer point of wire and wireless, does not relate to more function.At aspects such as transmission range, transmission medium, parallel operation work and classs of business very big defective is arranged.
Meanwhile, the greater functionality of wire and wireless, in social every field, as departments such as aviation, navigation, highway, railway, inland water transport, tourism, public security, fire-fighting and medical treatment, can provide multiple business such as command scheduling, phone are interconnected, transfer of data, information receiving and transmitting that the market demand is widely arranged.
In realizing the utility model process, the designer finds to exist at least in the prior art following problem: the limited amount of desktop computer, many the supported desk-top intercom quantity of tabletop machine parallel operation work are few, can't realize commander's monitoring at a distance, transmission range is short, the communication area coverage is little, the wired intercom system can't move freely, and wireless transmitting system can't carry out remote transmission etc.
The utility model content
The purpose of this utility model provides a kind of device of wire and wireless common network operation, by wired commentaries on classics wireless technology wire signal is transmitted with form wireless, broadcasting, realize the conversion of wire communication to radio communication, make the transfer platform realized wireless colony radio station, catv terminal, local telephone network public network three net one, is three kinds of cluster network groups one, expand communication range, thereby satisfied the active demand that command scheduling trunking communication network order benefit increases.
For achieving the above object, embodiment of the present utility model provides a kind of device of wire and wireless common network operation, comprising: radio interface module, catv terminal interface module, local telephone network public network interface module, DSP module, MCU module, transmission link interface module, LCD human-computer interaction module.
Described radio interface module, be used to provide interface with radio station, the status signal and the control signal of radio set are done corresponding collection and conversion, and to described FPGA module transmission, also be used to receive the control command of described FPGA module, the wireless receiving and dispatching work station is implemented control;
Described catv terminal interface module, be used to provide connecting interface with desk-top intercommunication box, limit signal, operating state are done corresponding collection and conversion, and to described FPGA module transmission, also be used for providing feed, can realize audio frequency transmitting-receiving and the conversion of 2/4 line, can realize monitoring with saying speech phase and switch to catv terminal, the input of scalable microphone volume, the scalable speaker volume;
Described local telephone network public network interface module, be used to provide the interface that inserts with PSTN/PBX/VOIP, to amplify from the audio signal that described PSTN/PBX/VOIP receives, after the conversion, be sent to described DSP resume module again, and the corresponding level signal of the described local telephone network public network of described FPGA module controls interface module realizes wire-wireless communication;
Described DSP module adopts dsp processor, is used to realize the access of local telephone network public network port, and the local telephone network speech is detected, and the sign as switching the speaking right passage detects the on-hook sound, when the local telephone network on-hook finishes conversation, cuts off the talking path, city;
Described MCU module is used for each module operating state to whole device and monitors and control, and according to real-time status corresponding signal is sent to described transmission link interface module;
Described transmission link interface module is used to provide the remote equipment cascade function, i.e. E1 parallel operation coffret transmits via E1 or optical fiber, realizes the cascade of many tabletop machines, and transmission medium is coaxial cable or optical fiber;
Described LCD human-computer interaction module is used for realizing the concrete parameter control of equipment by device panel.
Described FPGA module specifically comprises: signaling detection module, acquisition module, time division multiplexing module, line coding module;
Described signaling detection module is used to realize the detection of the control signal that radio interface, catv terminal, local telephone network public network insert;
Described acquisition module, the information gathering that is used to obtain speech control passage, and broadcast this information at other passages of native system;
Described time division multiplexing module is used for 24 road voice messagings are carried out time division multiplexing;
Described line coding module is used for the voice signal of circuit is encoded, and is suitable for the transmission of circuit.
Comprise 1 Optical fiber relay interface, 4 E1 interfaces, can realize the cascade or the star-like networking of many table apparatus by the E1 interface.
Communication pattern is half-duplex operation.
Comprise 2 radio interfaces, can support the centralized control of different frequency range cluster.
Comprise 2 local telephone network common network interfaces, can support the access of PSTN/PBX/VOIP.
Comprise 24 catv terminal interfaces, can support the access of many desk-top intercommunication boxes.
Adopt the card insert type structure, i.e. mainboard and professional lesser calorie separate type, every lesser calorie can provide the two-way speech business.
Comprise 15 groove positions, 30 road 64K speech businesses.
The utility model can bring following effect:
1, can realize the cascade of desk-top tabletop machine, the quantity of desktop computer is not limit; The separate unit tabletop machine can be supported 24 tunnel desk-top intercoms at most; If many tabletop machine parallel operation work then can be supported more desk-top intercom;
2, the transmission range of desk-top intercom can reach 5km on twisted-pair feeder, can implement commander's monitoring at a distance;
3, the configuration desktop computer can reduce radio interference and radiation;
4, by E1 or Optical Fiber Transmission, realize remote many table apparatus parallel operation work, increase the communication area coverage;
5, provide the public network telephony interface, for landline telephone and mobile phone provide the long-range commander/monitoring means of dialling in;
6, desk-top tabletop machine can be realized the centralized monitor to two different frequency range clusters;
7, the recording service function to all digital terminals of acoustic control is provided;
8, change the shortcoming that the wired intercom system can't move freely, when needs are mobile, switch to wireless transmission by button;
9, wireless transmitting system can't carry out remote transmission, and this device can adopt the fine transmission of wired mode relaying;
10, can realize that wireless system carries out the multifrequency point monitor function when can't realize.
Description of drawings
Fig. 1 is the structural representation of the device of a kind of wire and wireless common network operation among the utility model embodiment;
Fig. 2 is the schematic diagram of the telephone-broadcast service application among the utility model embodiment;
Fig. 3 is the schematic diagram that the wire and wireless audio service among the utility model embodiment is used;
Fig. 4 is the schematic diagram that the Star Network among the utility model embodiment is used;
Fig. 5 is the schematic diagram of the chain network application among the utility model embodiment.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail:
Fig. 1 is the structural representation of the device of a kind of wire and wireless common network operation among the utility model embodiment.As shown in Figure 1, comprise: radio interface module 101, catv terminal interface module 102, local telephone network public network interface module 103, DSP module 104, MCU module 105, transmission link interface module 106, LCD human-computer interaction module 107, FPGA module 108, also have radio station 109, desk-top intercommunication box 110, PSTN/PBX/VOIP111 in addition, wherein
Radio interface module 101, be used to provide interface with radio station 109, the status signal and the control signal of radio set are done corresponding collection and conversion, to adapt to the processing of FPGA module 108 control system, and can accept the control command of FPGA module 108, the wireless receiving and dispatching work station is implemented control;
Catv terminal interface module 102 is used to provide the connecting interface with desk-top intercommunication box 110, and provides feed to catv terminal, can realize audio frequency transmitting-receiving and the conversion of 2/4 line; Can realize monitoring with saying speech phase and switch; The input of scalable microphone volume; The scalable speaker volume;
Local telephone network public network interface module 103, be used to provide the interface that inserts with PSTN/PBX/VOIP111, to amplify from the audio signal that PSTN/PBX/VOIP111 receives, after the conversion, delivering to DSP module 105 again handles, and the corresponding level signal of FPGA module 109 controls realizes wire-wireless communication;
DSP module 104 adopts dsp processor, is used to realize the access of local telephone network public network port; The local telephone network speech is detected, as the sign that switches the speaking right passage; The on-hook sound is detected, when the local telephone network on-hook finishes conversation, cut off the talking path, city;
MCU module 105 is used for each module operating state to whole device and monitors and control.Such as transmission link interface module 106 Interface status, the Stateful Inspection of power supply status, or DSP module 104 done threshold values thresholding control etc.;
Transmission link interface module 106 is used to provide the remote equipment cascade function, i.e. E1 parallel operation coffret is realized the cascade of many tabletop machines; Transmission medium can be coaxial cable or optical fiber;
LCD human-computer interaction module 107 is used for realizing the concrete parameter control of equipment by device panel; Such as equipment principal and subordinate clock, DSP module threshold values, sensitivity is provided with etc.;
FPGA module 108, when being used for on-line working, after the voice signal that receives wireline interface, wave point transmission, operating state, according to complete machine state and software setting various control command signal are carried out encoding and decoding processing, code conversion, Clock Extraction processing, be sent to described DSP module 104 then and carry out signal processing;
Wherein, FPGA module 108 further comprises: signaling detection module 1081, acquisition module 1082, time division multiplexing module 1083, line coding module 1084, wherein,
Signaling detection module 1081 is used to realize the detection of the control signal that radio interface, catv terminal, local telephone network public network insert;
Acquisition module 1082, the information gathering that is used to obtain speech control passage, and broadcast this information at other passages of native system;
Time division multiplexing module 1083 is used for 30 road voice messagings are carried out time division multiplexing;
Line coding module 1084 is used for the voice signal of circuit is encoded, and is suitable for the transmission of circuit.
The operation principle of the device of the utility model wire and wireless common network operation is: during on-line working, after wave point, wireline interface are sent to FPGA module 108 by radio interface module 101, catv terminal interface module 102 respectively with voice signal, operating state, FPGA module 108 is carried out encoding and decoding processing, code conversion, Clock Extraction processing with various control command signal, according to complete machine state and software setting various control command signal are delivered to DSP module 104 then, carry out signal processing; Wherein, corresponding signal is sent to transmission link interface module 106, transmits via E1 or optical fiber according to real-time status by the supervision and the control of 106 pairs of each module operating states of complete machine of MCU module.After the opposite end receives information, do opposite conversion and processing, thereby realize the operation of wire and wireless common network communication.
The device of the utility model wire and wireless common network operation has been realized the switching of wireless colony radio station, catv terminal, local telephone network public network three net one.Is three kinds of cluster network groups one, has expanded communication range.
Adopted time-division multiplex technology, voice compression technique and sound detection technology.2 radio interfaces externally can be provided, can support the centralized control of different frequency range cluster, each radio interface accounts for 1 groove position, and 2 radio interfaces account for 2 groove positions altogether; No. 2 local telephone network public network interfaces can be provided, can support the access of PSTN/PBX/VOIP, No. 2 local telephone network common network interfaces account for 1 groove position, 24 road catv terminal interfaces can be provided, can support the access of many desk-top intercommunication boxes, every two-way interface accounts for 1 groove position, and 24 road catv terminal interfaces account for 12 groove positions; Therefore this device provides 15 groove positions altogether, 30 road 64K speech businesses, integrated circuit board in each groove position in 15 groove positions, every integrated circuit board can provide 2 road catv terminal interfaces, can provide 24 the tunnel, also have 2 the tunnel to use for outer line interface, i.e. No. 2 local telephone network public network interfaces, reserve for other use in other groove positions, can enlarge the message capacity and the transmission range of equipment by the equipment cascading function.The transmission link maximum can externally provide 1 Optical fiber relay interface, and 4 E1 interfaces can be realized cascade or star networking by the E1 interface.The devices communicating pattern is half-duplex operation.Thereby enlarge the message capacity and the transmission range of equipment, satisfy the demand of dispatching patcher in various application scenarios.All speech data signals are done conversion through corresponding interface, deliver to the FPGA module and carry out encoding and decoding processing, code conversion, Clock Extraction processing, become the standard interface data, communicate via E1 or optical fiber.After the opposite end receives information, do opposite conversion and processing.
Adopt the card insert type structural design, i.e. mainboard and professional lesser calorie separate type, every lesser calorie can provide the two-way speech business, can dispose different service cards according to the actual requirements.
This device can satisfy the big capacity of user, high reliability, access and the incorporate requirement of transmission equipment, has characteristics such as integrated level height, structure is exquisite, adaptive capacity to environment is strong.Simultaneously, this device also have the incomparable installation of other same categories of device simple, be convenient to advantage such as maintenance.
Below in conjunction with a concrete application scenarios, the wire and wireless public network device that uses embodiment of the present utility model to provide is provided is carried out the specific implementation of wire communication to the conversion of radio communication.Fig. 2 is the schematic diagram of the telephone-broadcast service application among the utility model embodiment.In this scene, in telephone-broadcast service application mode is example, as shown in Figure 2, the telephone number that the user side making call links to each other with equipment, no longer ring the on of explanation phone after hearing dialing sound equipment three, can see the green indicating lamp of response outside line key simultaneously in equipment end, equipment end phone off-hook or intercom are pressed and are sent when speaking behind the words key program control end can only listen not talkative, the phone of other back off-hooks of equipment end can only be listened equally and cannot say, be the phone priority height of first off-hook, the phone of other off-hooks just can be talked after the off-hook phone on-hook formerly.
Wherein, the telephone network that application shown in Figure 2 inserts can be a public telephone network, also can be the internal institution telephone network.
Below in conjunction with another concrete application scenarios, the wire and wireless public network device that uses embodiment of the present utility model to provide is provided is carried out the specific implementation of wire communication to the conversion of radio communication.Fig. 3 is the schematic diagram that the wire and wireless audio service among the utility model embodiment is used.In this scene, with wired unlimited audio service application mode is example, as shown in Figure 3, the conversation channel of desk-top intercom and the conversation channel of portable interphone must be made as same channel during conversation, portable interphone send words, and desk-top intercom, intercom A and phone (off-hook) all can receive voice signal.
Below in conjunction with another concrete application scenarios, the wire and wireless public network device that uses embodiment of the present utility model to provide is provided is carried out the specific implementation of wire communication to the conversion of radio communication.Fig. 4 is the schematic diagram that the Star Network among the utility model embodiment is used.In this scene, be example with the networking mode of Star Network, star-like networking connected mode is formed a Star Network by 3 equipment as shown in Figure 4.2 e1 ports on the equipment 1 are connected respectively to equipment 2, on the 1st e1 port of equipment 3.Equipment 1 produces master clock, and other 2 equipment obtain clock from the 1st e1 port respectively.When connection was squeezed in outside line, catv terminal, hand-held sets all in the StarNet all can receive voice messaging, realized half-duplex call; After outside line speech finishes, but the catv terminal in the StarNet and hand-held set button rob and connect speech, carry out the whole network and converse.
Below in conjunction with another concrete application scenarios, the wire and wireless public network device that uses embodiment of the present utility model to provide is provided is carried out the specific implementation of wire communication to the conversion of radio communication.Fig. 5 is the schematic diagram of the chain network application among the utility model embodiment.In this scene, be example with the networking mode of chain network, the chain networking connected mode is formed a chain network by 3 equipment as shown in Figure 5.E1#1 port on the equipment 1 is connected on the E1#1 port of equipment 2, and the E1#2 port on the equipment 2 is connected on the E1#1 port of equipment 3.Equipment 1 produces master clock, and other 2 equipment obtain clock from separately E1#1 respectively.When connection was squeezed in outside line, online all catv terminal, the hand-held sets of chain all can receive voice messaging, realize half-duplex call; After outside line speech finishes, but the online catv terminal of chain rob with the hand-held set button and connect speech, carry out the whole network and converse.
It should be noted that at last: above embodiment is only in order to explanation the technical solution of the utility model but not limit it, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement the technical solution of the utility model, and these modifications or be equal to replacement and also can not make amended technical scheme break away from the spirit and scope of technical solutions of the utility model.

Claims (9)

1. the device of a wire and wireless common network operation is characterized in that, comprising: FPGA module, radio interface module, catv terminal interface module, local telephone network public network interface module, DSP module, MCU module, transmission link interface module, LCD human-computer interaction module;
Described FPGA module, when being used for on-line working, after the voice signal that receives wireline interface, wave point transmission, operating state, according to complete machine state and software setting various control command signal are carried out encoding and decoding processing, code conversion, Clock Extraction processing, be sent to the DSP module then and carry out signal processing;
Described radio interface module, be used to provide the interface with radio station, the status signal and the control signal of radio set done corresponding collection and conversion, and send to described FPGA module, also be used to receive the control command of described FPGA module, the wireless receiving and dispatching work station is implemented control;
Described catv terminal interface module, be used to provide connecting interface with desk-top intercommunication box, limit signal, operating state are done corresponding collection and conversion, and to described FPGA module transmission, also be used for providing feed, can realize audio frequency transmitting-receiving and the conversion of 2/4 line, can realize monitoring with saying speech phase and switch to catv terminal, the input of scalable microphone volume, the scalable speaker volume;
Described local telephone network public network interface module, be used to provide the interface that inserts with PSTN/PBX/VOIP, to amplify from the audio signal that described PSTN/PBX/VOIP receives, after the conversion, be sent to described DSP resume module again, and the corresponding level signal of the described local telephone network public network of described FPGA module controls interface module realizes wire-wireless communication;
Described DSP module adopts dsp processor, is used to realize the access of local telephone network public network port, and the local telephone network speech is detected, and the sign as switching the speaking right passage detects the on-hook sound, when the local telephone network on-hook finishes conversation, cuts off the talking path, city;
Described MCU module is used for each module operating state to whole device and monitors and control, and according to real-time status corresponding signal is sent to described transmission link interface module;
Described transmission link interface module is used to provide the remote equipment cascade function, i.e. E1 parallel operation coffret transmits via E1 or optical fiber, realizes the cascade of many tabletop machines, and transmission medium is coaxial cable or optical fiber;
Described LCD human-computer interaction module is used for realizing the concrete parameter control of equipment by device panel.
2. the device of wire and wireless common network operation according to claim 1 is characterized in that described FPGA module specifically comprises: signaling detection module, acquisition module, time division multiplexing module, line coding module;
Described signaling detection module is used to realize the detection of the control signal that radio interface, catv terminal, local telephone network public network insert;
Described acquisition module, the information gathering that is used to obtain speech control passage, and broadcast this information at other passages of native system;
Described time division multiplexing module is used for 24 road voice messagings are carried out time division multiplexing;
Described line coding module is used for the voice signal of circuit is encoded, and is suitable for the transmission of circuit.
3. the device of wire and wireless common network operation according to claim 1 is characterized in that, comprises 1 Optical fiber relay interface, 4 E1 interfaces, can realize the cascade or the star-like networking of many table apparatus by the E1 interface.
4. as the device of wire and wireless common network operation as described in the claim 3, it is characterized in that communication pattern is half-duplex operation.
5. the device of wire and wireless common network operation according to claim 1 is characterized in that, comprises 2 radio interfaces, can support the centralized control of different frequency range cluster.
6. the device of wire and wireless common network operation according to claim 1 is characterized in that, comprises 2 local telephone network common network interfaces, can support the access of PSTN/PBX/VOIP.
7. the device of wire and wireless common network operation according to claim 1 is characterized in that, comprises 24 catv terminal interfaces, can support the access of many desk-top intercommunication boxes.
8. the device of wire and wireless common network operation according to claim 1 is characterized in that, adopts the card insert type structure, i.e. mainboard and professional lesser calorie separate type, and every lesser calorie can provide the two-way speech business.
9. as the device of wire and wireless common network operation as described in the claim 8, it is characterized in that, comprise 15 groove positions, 30 road 64K speech businesses.
CN201020208656XU 2009-07-02 2010-05-26 Wired-wireless co-network operating device Expired - Fee Related CN202077042U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201020208656XU CN202077042U (en) 2009-07-02 2010-05-26 Wired-wireless co-network operating device

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN200920109574 2009-07-02
CN200920109574.7 2009-07-02
CN201020208656XU CN202077042U (en) 2009-07-02 2010-05-26 Wired-wireless co-network operating device

Publications (1)

Publication Number Publication Date
CN202077042U true CN202077042U (en) 2011-12-14

Family

ID=45115117

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201020208656XU Expired - Fee Related CN202077042U (en) 2009-07-02 2010-05-26 Wired-wireless co-network operating device

Country Status (1)

Country Link
CN (1) CN202077042U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103078789A (en) * 2012-12-27 2013-05-01 鞍山钢铁集团公司 Railway dispatching system wireless communication switching device and working method
CN105356927A (en) * 2015-12-25 2016-02-24 河南省电力勘测设计院 Relay method and relay adaptor for short-wave radio station
CN105744009A (en) * 2014-12-08 2016-07-06 上海航天有线电厂有限公司 Short-wave relay interface device for radio communication system
CN109582270A (en) * 2018-10-24 2019-04-05 视联动力信息技术股份有限公司 A kind of method, apparatus and terminal device of 3.5 millimeters of interface duplexes
TWI754927B (en) * 2020-05-06 2022-02-11 三商電腦股份有限公司 Method for performing emergency call and mobile communication device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103078789A (en) * 2012-12-27 2013-05-01 鞍山钢铁集团公司 Railway dispatching system wireless communication switching device and working method
CN103078789B (en) * 2012-12-27 2015-09-30 鞍山钢铁集团公司 A kind of method of work of railway dispatching system radio communication switching device
CN105744009A (en) * 2014-12-08 2016-07-06 上海航天有线电厂有限公司 Short-wave relay interface device for radio communication system
CN105744009B (en) * 2014-12-08 2018-12-14 上海航天有线电厂有限公司 A kind of short-relay interface arrangement for station telecommunication system
CN105356927A (en) * 2015-12-25 2016-02-24 河南省电力勘测设计院 Relay method and relay adaptor for short-wave radio station
CN109582270A (en) * 2018-10-24 2019-04-05 视联动力信息技术股份有限公司 A kind of method, apparatus and terminal device of 3.5 millimeters of interface duplexes
CN109582270B (en) * 2018-10-24 2022-03-25 视联动力信息技术股份有限公司 Method and device for multiplexing 3.5 mm interface and terminal equipment
TWI754927B (en) * 2020-05-06 2022-02-11 三商電腦股份有限公司 Method for performing emergency call and mobile communication device

Similar Documents

Publication Publication Date Title
CN103024209B (en) Power emergency converged communication dispatching command system
CN101582952B (en) Multimedia dispatching and command system
CN202077042U (en) Wired-wireless co-network operating device
CN201742498U (en) Visual dispatching system
CN101005679A (en) Multiple mode multiple standby mobile communication terminal with multiple parts communication function
CN204068990U (en) Mine is wired, broadcast integrated dispatching communication system
CN202856752U (en) Shortwave duplex communication system
CN108012039A (en) A kind of portable integrated speech communication equipment
CN102916798A (en) Short wave duplex communication system and short wave duplex communication method
CN208174713U (en) A kind of multi-functional communications all-in-one machine
CN103297636B (en) A kind of based on SHDSL multicast communication device systems and method
CN106937265A (en) A kind of method and apparatus of ship communications
RU2475398C1 (en) System for train radio communication with linear composite digital channel (versions)
CN103841279B (en) Bus type multi-party communication digital telephone system
CN2914510Y (en) Telephone system realizing one number connecting function
CN202334576U (en) Emergency interconnected communication system
CN101848261B (en) Method and terminal for realizing call recording
CN203289594U (en) An interconnected and intercommunicated dispatching command system
CN102143350A (en) Video phone conference system
CN202004895U (en) Video telephone conference system
CN201414159Y (en) Multimedia terminal machine
CN214228398U (en) Mine call intercom system based on dispatching communication system and emergency broadcasting system
CN2831658Y (en) GSM/PHS dual-modular cell phone system
CN108418733A (en) A kind of multi-functional communications all-in-one machine
CN101136879A (en) Interconnection arrangement of DWDM ethernet official telephone and circuit switching official telephone

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20111214

Termination date: 20120526