CN102572614A - Walkie-talkie remote communication method and walkie-talkie - Google Patents

Walkie-talkie remote communication method and walkie-talkie Download PDF

Info

Publication number
CN102572614A
CN102572614A CN201010619290XA CN201010619290A CN102572614A CN 102572614 A CN102572614 A CN 102572614A CN 201010619290X A CN201010619290X A CN 201010619290XA CN 201010619290 A CN201010619290 A CN 201010619290A CN 102572614 A CN102572614 A CN 102572614A
Authority
CN
China
Prior art keywords
group
intercom
button
communication
cpu chip
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.)
Pending
Application number
CN201010619290XA
Other languages
Chinese (zh)
Inventor
孙方镭
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.)
Shanghai Kelu Software Co Ltd
Original Assignee
Shanghai Kelu Software 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 Shanghai Kelu Software Co Ltd filed Critical Shanghai Kelu Software Co Ltd
Priority to CN201010619290XA priority Critical patent/CN102572614A/en
Publication of CN102572614A publication Critical patent/CN102572614A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • Y02B60/50

Abstract

The invention discloses a walkie-talkie remote communication method and a walkie-talkie. A mobile communication main board is arranged in the shell body of the walkie-talkie, a group of communication buttons and a voice button are arranged on the shell body, and each communication button corresponds to a communication group; and after any communication button is pressed, a signal is sent to a central processing unit (CPU) through a key circuit, the CPU chip simplex multi-party conversation conference is launched to the members of the group through a radio frequency module, so that an intercommunication function in the group is realized. Through the improvement, the walkie-talkie can carry out calling through code division multiple access (CDMA), global system for mobile communications (GSM), third generation (3G) and other wireless communication networks, so that the original one-to-more conversion function of the walkie-talkie is maintained, and simultaneously, the problem that the conversation distance of the walkie-talkie is restricted is solved. The invention is very applicable to long-distance scheduling systems in railways, aviation, public security, taxies, automobile transportation, large enterprises and the like. After the technology is adopted, the walkie-talkie does not need to occupy frequency band resources solely, so that the utilization rate of existing public resources is improved, the radio pollution is reduced, and simultaneously, the power required by the walkie-talkie and the radiation harm to the human body are reduced. In addition, the business functions of existing mobile conference telephones, group telephones and group telephones can be promoted quickly and practically.

Description

A kind of intercom remote communication method and intercom
Technical field
The present invention relates to a kind of intercom communication technology
Background technology
Wireless interspeaker is the mobile radio communication device that is used by the mankind the earliest, just begins to be applied as far back as nineteen thirties.Through the development in 3/4th century, the application of intercom is very general, moves towards ordinary consumption from specialized field, from military expand to civilian.Wireless interspeaker is an important branch in the mobile communication, and it is a kind of wireless terminal equipment that some multiple spot is communicated that can in moving, use, and many people are exchanged simultaneously each other, makes many people can hear same individual's speech simultaneously.Because wireless interspeaker links up immediately, gets ready to go into action in hundreds, easy to use, in handling urgent accident, its effect is that other meanss of communication are irreplaceable in carrying out dispatch control.
Because the above-mentioned characteristic of intercom is widely used in public security scheduling, railway dispatching, taxi dispatching, automobile transportation dispatching, aviation scheduling or the like at present.Yet the communication distance of intercom is restricted, is example with the most frequently used hand-hold wireless intercom, and communication distance generally can reach 5 kilometers when clog-free opening.Under the support of cordless communication network, can reach the 10-20 kilometer through the intermediate station communication distance.If distance is long again, then can't guarantee communication.
And the signal transmission distance of intercom and its power have direct relation, and in order to ensure the transmission range of signal, the power of intercom is bigger usually; General hand-hold wireless intercom power is at 4-6w; It is bigger that car (ship, machine) carries formula wireless interspeaker volume, and power is not less than 10W, is generally 25W.Maximum power is that VHF is that 56W, UHF are 50W.Also have indivedual vehicle-mounted intercommunications terminal to reach 75W (IC-VX8000) at the power of a certain frequency range.Easily other people are caused interference, equally also receive the interference of other intercoms easily.And this high-power to bring human body radiation very big.By contrast, the power of mobile phone is then much smaller, and the power of intercom is generally tens times even hundred times of mobile phone, and its radiation is also much bigger for mobile phone.
Existing intercom needs independent band occupancy resource, and poor to the sharing of resource, resource utilization is low, and causes radio to pollute easily, and still all there is infringement in human body to environment.
In addition, because existing intercom receives distance limit, if when the burst emergency; Dispatch control person is not at the scene; Then can't use intercom to dispatch, can only link up, discuss through mobile phone and dispatcher, replace dispatching by other staff again by other staff.The middle personnel that substitute need carry out two-way reporting, and actual schedule personnel promptly can't obtain field data intuitively, also can't directly command, and directly influence scheduling quality makes the issue handling reconciliation never in time enough.
Summary of the invention
The technical problem that the present invention mainly solves provides a kind of distance communicating intercom and communication means thereof, makes
In order to solve the problems of the technologies described above, the invention provides a kind of intercom remote communication method, this intercom housing is provided with a group communication button and a voice button, comprises following steps:
The corresponding communication group of button of respectively communicating by letter is set in advance;
After arbitrary said communication button is pressed; Send a signal through keyboard circuit to the cpu chip of intercom; Said cpu chip passes through the group member of radio-frequency module in this group and initiates the meeting of single worker's MPTY, intercommunication in the realization group according to the corresponding communication group of this communication button.
As the improvement of technique scheme, said voice button links to each other with the switch of said microphone, and under the normal state, said microphone is in closed condition, when said voice button is pressed, opens said microphone.
As the improvement of technique scheme, the cpu chip of intercom electrically connects a radio-frequency module;
Said radio-frequency module forbids sending the ascending voice signal when receiving the downlink voice signal; When no downlink voice signal, allow to send the ascending voice signal.
As the improvement of technique scheme, this method also comprises following steps:
According to user's selection, MPTY meeting getting type is set; Said getting type comprises: incoming call is connected automatically and incoming call is manually connected;
When receiving said MPTY request for conference, connect this MPTY meeting automatically according to said the setting, perhaps manually connect this MPTY meeting by the user.
As the improvement of technique scheme, a display lamp also is housed on the said shell, electrically connect with said cpu chip, also comprise following steps:
When said radio-frequency module was received the downlink voice signal, said cpu chip and said display lamp broke off, and said display lamp extinguishes, and indicates current can not the speech;
When said radio-frequency module was not received the downlink voice signal, said cpu chip and said display lamp were connected, and said display lamp is lighted, and indicates current can the speech.
The present invention also provides a kind of telecommunication intercom; Comprise a housing, be embedded in surface of shell display screen, be installed on the mobile communication mainboard in the housing; Also be provided with a group communication button and a voice button on this housing; In the said group communication button, the corresponding communication group of each communication button;
Include on the said mobile communication mainboard cpu chip, with the radio-frequency module that this cpu chip electrically connects, a said group communication button and voice button are all through a keyboard circuit and cpu chip electric connection;
After said communication button is pressed; Send a signal through keyboard circuit to cpu chip; Said cpu chip passes through the group member of radio-frequency module in this group and initiates the meeting of single worker's MPTY, intercommunication function in the realization group according to the corresponding communication group of this communication button.
Embodiment of the present invention compared with prior art, the main distinction and effect thereof are: on the intercom housing, be provided with a group communication button and a voice button, a mobile communication module is set in intercom, the corresponding communication group of button of respectively communicating by letter is set in advance; After arbitrary communication button is pressed; Send a signal through keyboard circuit to the cpu chip of intercom; Cpu chip passes through the group member of radio-frequency module in this group and initiates the meeting of single worker's MPTY, intercommunication in the realization group according to the corresponding communication group of this communication button.Through above-mentioned improvement, make intercom to converse, when keeping the original one-to-many call function of intercom through cordless communication networks such as CDMA, GSM, 3G; Solved the restricted problem of intercom speech range; Be very suitable for remote dispatching patcher such as railway, aviation, public security, taxi, automobile transportation, large enterprise, and after adopting present technique, intercom need not to take separately the resource of frequency range again; Improved the utilance of existing public resource; Reduce radio and pollute, also reduced the required power of intercom self simultaneously, reduce radiation injury human body.And can make the business function of existing mobile conferencing call, group telephone, cohort group phone can promote practicality rapidly.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is done further explain.
Fig. 1 is a first embodiment of the invention intercom remote communication method flow chart;
Fig. 2 is a second embodiment of the invention telecommunication intercom external structure sketch map;
Fig. 3 is a second embodiment of the invention telecommunication intercom internal structure sketch map.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing that execution mode of the present invention is done to describe in detail further below.
First embodiment of the invention relates to a kind of intercom remote communication method, on the intercom housing, is provided with a group communication button and a voice button, according to demand the corresponding communication group of button of respectively communicating by letter is set in advance.
Concrete communication process is as shown in Figure 1, in the step 101, when the user dispatches a certain group at needs, selects as required communication button that should group.This user also is the group member of this group simultaneously.
In the step 102, after the communication button is pressed, send a signal through keyboard circuit to the cpu chip of intercom, said cpu chip passes through the group member of radio-frequency module in this group and initiates the meeting of single worker's MPTY according to the corresponding communication group of this communication button.Specifically can pass through gsm wireless network or 3G wireless network must wait public communication network to initiate the conversation meeting.
In the step 103, the group member in this group receives this MPTY request for conference, connects this MPTY meeting.In this execution mode, can MPTY meeting getting type be set according to user's selection; Comprise: incoming call is connected automatically and incoming call is manually connected.In this step, when receiving the MPTY request for conference, can connect this MPTY meeting automatically, perhaps manually connect this MPTY meeting by the user according to being set to the user.
In the step 104, the radio-frequency module of this intercom receives the downlink voice signal from this multi-party communication meeting, and the intercom cpu chip forbids that it sends the ascending voice signal when this radio-frequency module receives the downlink voice signal.Thereby guarantee in the MPTY meeting that the same time can only have a side to speak, its other party can only receive voice, thereby satisfies the scheduling needs, guarantees that interactive voice is in good order in the scheduling process.
And, on this intercom shell a display lamp is housed, electrically connect with cpu chip, when radio-frequency module was received the downlink voice signal, this cpu chip and this display lamp broke off, and display lamp extinguishes, and indicates current can not the speech; When radio-frequency module was not received the downlink voice signal, this cpu chip and display lamp were connected, and display lamp is lighted, and indicates current can the speech.
In the step 105, radio-frequency module is not received the downlink voice signal, and display lamp is lighted, and representes current unmanned speaking, and the group member in this group speaks if desired at this moment, presses the voice button, opens microphone, begins speech.Specifically, the voice button of this intercom links to each other with the switch of microphone, and under the normal state, microphone is in closed condition, when the voice button is pressed, opens this microphone, and the group member can begin speech.At this moment, because radio-frequency module does not receive the downlink voice signal, allow to send the ascending voice signal.In this step, the user need not intercom is attached in one's ear, can not hear voice content, and is easy to use, and reduces the injury of radiation to human body.
In sum, through above-mentioned improvement, make intercom to converse through cordless communication networks such as CDMA, GSM, 3G; When keeping the original one-to-many call function of intercom, solved the restricted problem of intercom speech range, be very suitable for remote dispatching patcher such as railway, aviation, public security, taxi, automobile transportation, large enterprise; And after the employing present technique; Intercom need not to take separately the resource of frequency range again, has improved the utilance of existing public resource, reduces radio and pollutes; Also reduced the required power of intercom self simultaneously, reduced radiation injury human body.And can make the business function of existing mobile conferencing call, group telephone, cohort group phone can promote practicality rapidly.
In this execution mode, can also be provided with camera and image transmission module in this intercom; Pass through this camera and image transmission module and can carry out the meeting of video MPTY, make scheduler can more clearly understand field condition.
Second embodiment of the invention relates to a kind of telecommunication intercom, comprise a housing, be embedded in surface of shell display screen, be installed on the mobile communication mainboard in the housing, housing is provided with a group communication button and a voice button, and is as shown in Figure 2.In the one group communication button, the corresponding communication group of each communication button.
Include on the mobile communication mainboard cpu chip, with the radio-frequency module that this cpu chip electrically connects, a group communication button and voice button are all through a keyboard circuit and cpu chip electric connection, and be as shown in Figure 3.After the communication button is pressed, send a signal through keyboard circuit to cpu chip, cpu chip passes through the group member of radio-frequency module in this group and initiates the meeting of single worker's MPTY, intercommunication function in the realization group according to the corresponding communication group of this communication button.Through above-mentioned improvement, make intercom to converse, when keeping the original one-to-many call function of intercom through cordless communication networks such as GSM, 3G; Solved the restricted problem of intercom speech range, and after adopting present technique, intercom need not to take separately the resource of frequency range again; Improved the utilance of existing public resource; Reduce radio and pollute, also reduced the required power of intercom self simultaneously, reduce radiation injury human body.
Also be provided with microphone, audio amplifier on the above-mentioned mobile communication mainboard, this microphone electrically connects through a voice/audio input port and cpu chip, and audio amplifier passes through audio amplifier circuit, and then electrically connects through an audio output port and cpu chip.Thereby the user need not intercom is attached in one's ear, can not hear voice content, and is easy to use, and further reduces the injury of radiation to human body.
The voice button links to each other with the switch of microphone, and under the normal state, microphone is in closed condition, and when the voice button was pressed, microphone was opened.Thereby satisfy legacy user's use habit.
Radio-frequency module is single worker's RF receiving and transmission module in this execution mode, when receiving the downlink voice signal, forbids sending the ascending voice signal; When no downlink voice signal, allow to send the ascending voice signal.Guarantee in the MPTY meeting that the same time can only have a side to speak, its other party can only receive voice, thereby satisfies the scheduling needs, guarantees that interactive voice is in good order in the scheduling process.
As the improvement of technique scheme, a display lamp also is housed on the shell of this intercom, electrically connect with cpu chip, when radio-frequency module was received the downlink voice signal, display lamp extinguished, and indicated current can not the speech; When radio-frequency module was not received the downlink voice signal, display lamp was lighted, and indicated current can the speech.
As the improvement of technique scheme, can also be provided with a camera, image transmission module, USB interface, and Subscriber Identity Module on the mobile communication mainboard, this camera, image transmission module, USB interface, and Subscriber Identity Module all electrically connect with cpu chip.Through this camera and image transmission module, the user can carry out video interactive, makes scheduler can more clearly understand field condition.
Though through reference some preferred implementation of the present invention; The present invention is illustrated and describes; But those of ordinary skill in the art should be understood that and can do various changes to it in form with on the details, and without departing from the spirit and scope of the present invention.
For further setting forth technological means and the effect that the present invention takes for the predetermined purpose of realization; See also following about detailed description of the present invention and accompanying drawing; Believe of the present invention day, characteristic and characteristics; Should obtain thus going deep into and concrete understanding, yet accompanying drawing only provides reference and explanation usefulness, is not to be used for the present invention is limited.

Claims (12)

1. an intercom remote communication method is characterized in that, said intercom housing is provided with a group communication button and a voice button, comprises following steps:
The corresponding communication group of button of respectively communicating by letter is set in advance;
After arbitrary said communication button is pressed; Send a signal through keyboard circuit to the cpu chip of intercom; Said cpu chip passes through the group member of radio-frequency module in this group and initiates the meeting of single worker's MPTY, intercommunication in the realization group according to the corresponding communication group of this communication button.
2. intercom remote communication method according to claim 1 is characterized in that, said voice button links to each other with the switch of said microphone, and under the normal state, said microphone is in closed condition, when said voice button is pressed, opens said microphone.
3. intercom remote communication method according to claim 2 is characterized in that the cpu chip of intercom electrically connects a radio-frequency module;
Said radio-frequency module forbids sending the ascending voice signal when receiving the downlink voice signal; When no downlink voice signal, allow to send the ascending voice signal.
4. intercom remote communication method according to claim 3 is characterized in that, also comprises following steps:
According to user's selection, MPTY meeting getting type is set; Said getting type comprises: incoming call is connected automatically and incoming call is manually connected;
When receiving said MPTY request for conference, connect this MPTY meeting automatically according to said the setting, perhaps manually connect this MPTY meeting by the user.
5. intercom remote communication method according to claim 4 is characterized in that, a display lamp also is housed on the said shell, electrically connects with said cpu chip, also comprises following steps:
When said radio-frequency module was received the downlink voice signal, said cpu chip and said display lamp broke off, and said display lamp extinguishes, and indicates current can not the speech;
When said radio-frequency module was not received the downlink voice signal, said cpu chip and said display lamp were connected, and said display lamp is lighted, and indicates current can the speech.
6. according to any described intercom remote communication method in the claim 1 to 5, it is characterized in that, also be provided with a camera and image transmission module in the said intercom;
Carry out the meeting of video MPTY through said camera and image transmission module.
7. telecommunication intercom; Comprise a housing, be embedded in surface of shell display screen, be installed on the mobile communication mainboard in the housing; It is characterized in that; Said housing is provided with a group communication button and a voice button, in the said group communication button, and the corresponding communication group of each communication button;
Include on the said mobile communication mainboard cpu chip, with the radio-frequency module that this cpu chip electrically connects, a said group communication button and voice button are all through a keyboard circuit and cpu chip electric connection;
After said communication button is pressed; Send a signal through keyboard circuit to cpu chip; Said cpu chip passes through the group member of radio-frequency module in this group and initiates the meeting of single worker's MPTY, intercommunication function in the realization group according to the corresponding communication group of this communication button.
8. telecommunication intercom according to claim 7; It is characterized in that; Also be provided with microphone, audio amplifier on the said mobile communication mainboard; This microphone electrically connects through a voice/audio input port and cpu chip, and audio amplifier passes through audio amplifier circuit, and then electrically connects through an audio output port and cpu chip.
9. telecommunication intercom according to claim 8 is characterized in that, said voice button links to each other with the switch of said microphone, and under the normal state, said microphone is in closed condition, and when said voice button was pressed, said microphone was opened.
10. telecommunication intercom according to claim 9 is characterized in that, said radio-frequency module is single worker's RF receiving and transmission module, when receiving the downlink voice signal, forbids sending the ascending voice signal; When no downlink voice signal, allow to send the ascending voice signal.
11. telecommunication intercom according to claim 10 is characterized in that, a display lamp also is housed on the said shell; Electrically connect with said cpu chip; When said radio-frequency module was received the downlink voice signal, said display lamp extinguished, and indicated current can not the speech; When said radio-frequency module was not received the downlink voice signal, said display lamp was lighted, and indicated current can the speech.
12. according to any described telecommunication intercom in the claim 7 to 11; It is characterized in that; Also be provided with a camera, image transmission module, USB interface, and Subscriber Identity Module on the said mobile communication mainboard, this camera, image transmission module, USB interface, and Subscriber Identity Module all electrically connect with cpu chip.
CN201010619290XA 2010-12-31 2010-12-31 Walkie-talkie remote communication method and walkie-talkie Pending CN102572614A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201010619290XA CN102572614A (en) 2010-12-31 2010-12-31 Walkie-talkie remote communication method and walkie-talkie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201010619290XA CN102572614A (en) 2010-12-31 2010-12-31 Walkie-talkie remote communication method and walkie-talkie

Publications (1)

Publication Number Publication Date
CN102572614A true CN102572614A (en) 2012-07-11

Family

ID=46416871

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201010619290XA Pending CN102572614A (en) 2010-12-31 2010-12-31 Walkie-talkie remote communication method and walkie-talkie

Country Status (1)

Country Link
CN (1) CN102572614A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103220022A (en) * 2013-03-28 2013-07-24 深圳市力同亚太科技有限公司 Hybrid talkback method and system
CN103944600A (en) * 2014-04-18 2014-07-23 天津七一二通信广播有限公司 Terminal based on ISM communication frequency band
CN106211094A (en) * 2016-07-08 2016-12-07 江苏省电力试验研究院有限公司 A kind of miniature distance voice talkback implementation method and system
CN108449102A (en) * 2018-03-08 2018-08-24 南安市如兴智能家居开发有限公司 Power equipment maintaining intercom
CN108900985A (en) * 2018-06-06 2018-11-27 李子盈 A kind of intercom method and system and equipment based on mobile Internet
CN109688372A (en) * 2018-11-16 2019-04-26 万翼科技有限公司 A kind of management method of intelligent wearable device
CN109874179A (en) * 2019-03-29 2019-06-11 深圳市昊一源科技有限公司 Phone system, master controller, wireless processing unit and retransmission method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1918819A (en) * 2004-09-16 2007-02-21 捷讯研究有限公司 System and method for queueing and moderating group talk
CN1917537A (en) * 2006-09-22 2007-02-21 华为技术有限公司 Method and system for realizing services through one key pushed
US20080076362A1 (en) * 2006-09-14 2008-03-27 Lenovo (Beijing) Limited PTT system, method for implementing PTT communication, PTT management server and terminal device thereof
CN201336735Y (en) * 2008-12-01 2009-10-28 深圳市隆宇世纪科技有限公司 Mobile phone with talkback function

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1918819A (en) * 2004-09-16 2007-02-21 捷讯研究有限公司 System and method for queueing and moderating group talk
US20080076362A1 (en) * 2006-09-14 2008-03-27 Lenovo (Beijing) Limited PTT system, method for implementing PTT communication, PTT management server and terminal device thereof
CN1917537A (en) * 2006-09-22 2007-02-21 华为技术有限公司 Method and system for realizing services through one key pushed
CN201336735Y (en) * 2008-12-01 2009-10-28 深圳市隆宇世纪科技有限公司 Mobile phone with talkback function

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103220022A (en) * 2013-03-28 2013-07-24 深圳市力同亚太科技有限公司 Hybrid talkback method and system
CN103220022B (en) * 2013-03-28 2015-12-02 深圳市力同亚太科技有限公司 A kind of mixing intercommunication method and system
CN103944600A (en) * 2014-04-18 2014-07-23 天津七一二通信广播有限公司 Terminal based on ISM communication frequency band
CN106211094A (en) * 2016-07-08 2016-12-07 江苏省电力试验研究院有限公司 A kind of miniature distance voice talkback implementation method and system
CN108449102A (en) * 2018-03-08 2018-08-24 南安市如兴智能家居开发有限公司 Power equipment maintaining intercom
CN108900985A (en) * 2018-06-06 2018-11-27 李子盈 A kind of intercom method and system and equipment based on mobile Internet
CN109688372A (en) * 2018-11-16 2019-04-26 万翼科技有限公司 A kind of management method of intelligent wearable device
CN109874179A (en) * 2019-03-29 2019-06-11 深圳市昊一源科技有限公司 Phone system, master controller, wireless processing unit and retransmission method
CN109874179B (en) * 2019-03-29 2024-03-05 深圳市昊一源科技有限公司 Communication system, main controller, wireless processing unit and forwarding method

Similar Documents

Publication Publication Date Title
CN102572614A (en) Walkie-talkie remote communication method and walkie-talkie
CN107769811B (en) Whole-network-communication and digital-analog compatible integrated interphone
CN207573346U (en) A kind of the whole network leads to the intercom with DA compatibility one
CN102378316A (en) Double-network digital mobile communication terminal and double-network communication method thereof
CN202004917U (en) Telecommunication interphone
CN210780753U (en) Fusion type talkback terminal containing public network module and private network module
CN110267213B (en) Wide-band and narrow-band fusion communication information system for railway passenger station
CN103888855A (en) Mobile terminal intercom system supporting concurrence of traditional cluster intercom and public network intercom
CN204090065U (en) PTT conventional cluster and/or public network cluster talkback unit
CN208128544U (en) A kind of comprehensive emergency hand-held communication terminal
CN101374344A (en) Wireless emergency communication synthesis scheduling system
CN106411347A (en) Handheld satellite telephone with wireless talkback function
CN201887954U (en) Double network data mobile communication terminal
CN202679543U (en) Remote intercommunication connection device and remote intercommunication system
US11457509B2 (en) Relay repeater network communication system
CN102547602B (en) Shoulder microphone and system and method for realizing three-party conversion between public network and private network
US20160219418A1 (en) Hybrid terminal capable of avoiding signals originated by own terminal
CN113905199A (en) Emergency comprehensive dispatching command system
CN206759743U (en) A kind of scheduling system based on mobile network's access
CN202077042U (en) Wired-wireless co-network operating device
CN201766587U (en) Onboard station equipment
CN201278591Y (en) Wireless emergency communication synthesis scheduling system
CN111432294B (en) Wireless communication method and system of full-duplex interphone
CN205610942U (en) Intelligent system based on digital walkie -Talkie realizes wide area business of talkbacking
CN107786688B (en) Mobile terminal with interphone function

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20120711

RJ01 Rejection of invention patent application after publication