CN101808227A - Emergency wireless broadband communication system - Google Patents
Emergency wireless broadband communication system Download PDFInfo
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- CN101808227A CN101808227A CN200910009008A CN200910009008A CN101808227A CN 101808227 A CN101808227 A CN 101808227A CN 200910009008 A CN200910009008 A CN 200910009008A CN 200910009008 A CN200910009008 A CN 200910009008A CN 101808227 A CN101808227 A CN 101808227A
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Abstract
The invention provides an emergency wireless broadband communication system, which comprises a central base station and a multimedia mobile terminal. The central base station is used for receiving multimedia data transmitted by the multimedia mobile terminal through a wireless broadband network and transmitting the multimedia data to the multimedia mobile terminal through the wireless broadband network; and the multimedia mobile terminal is used for collecting the multimedia data after establishing connection with the central base station through access to the wireless network, transmitting the collected multimedia data to the central base station through the wireless network, and receiving the multimedia data transmitted by the central base station. The system can help the command center to flexibly master the actual situation of the emergency accident site, and has the advantages of high mobility, flexible networking and great economic significance.
Description
Technical field
The present invention relates to mobile communication technology, particularly a kind of emergency wireless broadband communication system.
Background technology
Emergency communication system is exactly no matter when and where, local existing communication situation quality no matter, can promptly set up the stable communication system of using, traditional emergency communication system mostly just adopts voice communication mode, for example talk about the mode of mutual communication between the newspaper machine, but this mode can not get information about the actual state of place where the accident occurred, and the commander leader can't make indication accurately.
Continuous development along with network technology, network monitoring technology by the Internet realization has appearred subsequently, the first-class multimedia collection device of shooting promptly is installed in various places, and the multi-medium datas such as audio frequency and video that collect are transferred to Surveillance center by the Internet, Surveillance center can receive the multi-medium data of each multimedia collection device, again by other communication system, for example voice communication system etc. is assigned concrete indication, in the obvious this mode, a large amount of multimedia collection devices need be pre-configured in fixed network, cost is bigger, if and camera head is not installed on accident burst ground in advance, then Surveillance center can't realize that obviously very poor for the disposal ability of emergency situations, travelling performance is also very poor to the condition monitoring on accident burst ground.
Summary of the invention
In view of this, the invention provides a kind of emergency wireless broadband communication system, so that the burst ground of grasp accident neatly real time status and have higher travelling performance.
A kind of emergency wireless broadband communication system, this system comprises: center base station and multimedia mobile terminal;
Described center base station is used for receiving the multi-medium data that multimedia mobile terminal sends by wireless broadband network, sends multi-medium data by wireless broadband network to described multimedia mobile terminal;
Described multimedia mobile terminal, be used for after inserting wireless broadband network and described center base station and connecting, gather multi-medium data, and the multi-medium data that collects is sent to center base station by wireless broadband network, the multi-medium data that the receiving center base station sends.
As can be seen from the above technical solutions, in the emergency wireless broadband communication system provided by the invention, can set up special-purpose wireless broadband network by center base station and multimedia mobile terminal and carry out the transmission of multi-medium data, can carry out to the accident burst collection of multi-medium data arbitrarily and transmit the Police Command Center of multi-medium data in real time, thereby the realization Police Command Center be to the condition monitoring on accident burst ground to the center base station place; Carry out the multi-medium data collection because multimedia mobile terminal can insert wireless broadband network in any place where the accident occurred, travelling performance is higher, and networking flexibility obviously possesses the high processing ability for emergency situations.
Description of drawings
The system construction drawing that Fig. 1 provides for the embodiment of the invention;
A kind of CMMB radio frames resource allocation structure figure that Fig. 2 provides for the embodiment of the invention;
The instance graph of the emergency communication system that Fig. 3 provides for the embodiment of the invention.
Embodiment
In order to make the purpose, technical solutions and advantages of the present invention clearer, describe the present invention below in conjunction with the drawings and specific embodiments.
Wireless fast band emergency system provided by the invention can mainly comprise: center base station and multimedia mobile terminal as shown in Figure 1.
Wherein, multimedia mobile terminal is used to gather multi-medium data, and the multi-medium data that collects is sent to center base station by wireless broadband network, the multi-medium data that the receiving center base station sends.
Center base station is used for receiving the multi-medium data that multimedia mobile terminal sends by wireless broadband network, sends multi-medium data by wireless broadband network to multimedia mobile terminal.
This system provided by the present invention carries out transfer of data based on wireless broadband network, can adopt the OFDM wireless broad band technology, for example, can adopt code division multiple access (CDMA) network, GPRS (GPRS) network or China Mobile multimedia broadcasting (CMMB) bidirectional communication network etc.
In this system, can adopt wireless broadband network to cover at main hot zones, multimedia mobile terminal can move to accident burst ground easily, behind the arrival accident burst ground, multimedia mobile terminal can start the back and insert wireless broadband network, set up network with center base station and be connected, and the multi-medium data that collects is sent to center base station in real time.After center base station is received this multi-medium data, the commanding can make instruction accurately according to this multi-medium data, and send to each multimedia mobile terminal by wireless broadband network, so that the business personnel on accident burst ground can make correct work of treatment according to this instruction.In addition, the multi-medium data that issues by center base station can also be view data, voice data and video data etc., for example conductor image, sound etc. except director data
Wherein, center base station can be for one or more, and a plurality of center base station can constitute the wireless trunk communication network, and integral body is carried out the reception of multi-medium data and issuing of instruction as central station.Multimedia mobile terminal also can be for one or more.
In addition, can also comprise relay base station in this system, relay base station can be used to receive the multi-medium data that multimedia mobile terminal sends, and is transmitted to center base station; The multi-medium data that the receiving center base station sends, or further be transmitted to multimedia mobile terminal.Can insert wireless broadband network after this relay base station starts and set up network with center base station and be connected, multimedia mobile terminal can be set up wireless network with relay base station and be connected.Adopt relay base station can increase the transmission range and the transmission quality of multi-medium data and multi-medium data.In addition, relay base station is the function of integrated multimedia portable terminal simultaneously, promptly also can possess the multi-medium data acquisition function simultaneously, and the multi-medium data that collects is sent to center base station by wireless broadband network, and receive the multi-medium data that sends to self.Relay base station in the system also can be for one or more.
The present invention is actually and utilizes relay base station and multimedia mobile terminal, perhaps also further comprise relay base station specific region has been made up a private radio broadband network of realizing that emergency communication covers, this private radio broadband network must be supported the transmission of bi-directional data.Networks such as cdma network and GPRS network are no longer specifically given unnecessary details, below the CMMB bidirectional communication network is simply described.
Existing CMMB sends the business of multi-medium datas such as data tones, video with the form of broadcasting, because of it has big bandwidth as standard and be used widely, but because existing C MMB only can be used for the downlink transfer of multi-medium data it is applied in be subjected to restriction to a certain extent.The inventor provides a kind of improved CMMB mode to realize the transmitted in both directions of multi-medium data at this, in the CMMB radio frames that in this network, sends, can be the transmission that uplink transmission resource is used for the up multi-medium data of multimedia mobile terminal with the resource distribution at the time slot place of the wherein N except first time slot TS0, the resource distribution at other time slot place is used for the transmission that center base station is carried out multi-medium data etc. for the downlink transfer resource, and center base station can send to multimedia mobile terminal with first time slot TS0 of resource allocation information by this CMMB radio frames; Wherein, N is integer and 1≤N≤39.
For example shown in Figure 2, can with the resource fixed configurations at TS0 place the downlink transfer resource, the resource distribution at TS1 to TS20 place is a uplink transmission resource, wherein, TS1 can be used to carry ascending control information, TS2 to TS20 can be used to carry uplink business data, and the resource distribution at TS21 to TS39 place is the downlink transfer resource, and center base station can be carried at this resource allocation information carries out broadcast transmission among the TS0.Certainly can also adopt other configuration mode, give unnecessary details no longer one by one at this.
In addition, the setting OFDM symbol that can dispose in an above-mentioned N time slot wherein in M the time slot is used to carry the uplink random access sequence, and wherein, M is integer and 1≤M≤N.Multimedia mobile terminal or relay base station can send the uplink random access sequence to insert wireless broadband network on the setting OFDM symbol in this M time slot, connect with center base station.For example, certain OFDM symbol that can fixedly install among second time slot TS1 is fixed for carrying the uplink random access sequence, and perhaps, first OFDM symbol of each ascending time slot is fixed for carrying the uplink random access sequence.
Adopt the CMMB bidirectional communication network conventional wireless network such as cdma network and GPRS network of comparing, be subjected to the number affects of multimedia mobile terminal less, and have bigger transmission bandwidth.
Lifting a concrete application example below specifically describes said system, as shown in Figure 3, the center base station place can be provided with Police Command Center, in the Police Command Center devices such as display, computer can be set, thereby the situation that can show the burst of observation accident real-time and accurately ground to the multi-medium data that the base station receives, the multi-medium data that the control desk of Police Command Center can be controlled whole system receives and transmission, also user's rights of using, functions such as authentication can be set.And this Police Command Center can be by communicator in real time by base station transmitting multimedia data.
Relay base station in the said system can adopt command car to realize, this command car can possess in-vehicle wireless communications device, be a multi-media signal receiving terminal and transmitting terminal, wherein, receiving terminal can receive the multi-medium data from multimedia mobile terminal, also can receive the multi-medium data from center base station; Transmitting terminal can send multi-medium data to the Multimedia Mobile center, also can send multi-medium data to center base station.For example, the multi-angle image scene can be gathered in the multimedia terminal, send to command car after, command car can be combined into incident panorama information, carry out the site tissue scheduling, perhaps send to Police Command Center, make a policy by Police Command Center by wireless broadband network.In addition, this command car can also possess the multi-medium data acquisition function simultaneously, and audio and video acquisition devices such as microphone, video camera for example are installed on command car.
More preferably, can also provide vehicle power, stand-by generator, waterproof external electric supply socket etc. to guarantee having various means that supply of electric power is provided on the command car.
Multimedia mobile terminal in the said system can be the portable terminal that multimedia device, analog to digital converter and radio transmitting devices etc. such as vehicle-mounted vidicon, field camera, microphone, words newspaper machine, mediaphone are formed.Multimedia device offers analog to digital converter after being responsible for gathering multi-medium data, after analog to digital converter is digital signal with multi-medium data from analog signal conversion, carries out radio frequency by radio transmitting device and sends.For the data from center base station, radio transmitting device forms digital signal after the received RF data from wireless broadband network, by analog to digital converter digital signal is converted to analog signal, delivers to multimedia device and shows.
For example, when a situation arises in certain building, the business personnel can carry multimedia mobile terminal and enter in the building, start and to insert wireless broadband network behind the multimedia mobile terminal and set up network with center base station or relay base station and be connected, send to command car by wireless broadband network after the view data of collection site, directly be transmitted to Police Command Center by command car, perhaps command car sends to Police Command Center after the view data of each multimedia mobile terminal is integrated; Perhaps multimedia mobile terminal directly sends to Police Command Center by wireless broadband network with the view data that collects.Police Command Center can show the view data that receives, and the instruction that the commanding issues is sent to command car or multimedia mobile terminal by wireless broadband network.
By above description as can be seen, in the emergency wireless broadband communication system provided by the invention, can set up special-purpose wireless broadband network by center base station and multimedia mobile terminal and carry out the transmission of multi-medium data, can carry out to the accident burst collection of multi-medium data arbitrarily and transmit the Police Command Center of multi-medium data in real time, thereby the realization Police Command Center be to the condition monitoring on accident burst ground to the center base station place; Carry out the multi-medium data collection because multimedia mobile terminal can insert wireless broadband network in any place where the accident occurred, travelling performance is higher, and networking flexibility obviously possesses the high processing ability for emergency situations.
In addition,, obviously save cost more, have higher economic implications with respect to the mode of all laying camera head in the fixed network in each possible place where the accident occurred.
Especially, provide a kind of system's implementation of the CMMB of utilization bidirectional communication network among the present invention, supported the multiple terminals to insert, be subjected to the access number affects of multimedia mobile terminal less, and have bigger transmission bandwidth.
The present invention can be widely used in every field such as police service moves, dynamic public security, real-time traffic monitoring, fire fighting monitoring, environment measuring, oil field monitoring, gas station's monitoring, government's private network, Community Watch, the tele-medicine consultation of doctors, has higher social utility's meaning.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (9)
1. an emergency wireless broadband communication system is characterized in that, this system comprises: center base station and multimedia mobile terminal;
Described center base station is used for receiving the multi-medium data that multimedia mobile terminal sends by wireless broadband network, sends multi-medium data by wireless broadband network to described multimedia mobile terminal;
Described multimedia mobile terminal, be used for after inserting wireless broadband network and described center base station and connecting, gather multi-medium data, and the multi-medium data that collects is sent to center base station by wireless broadband network, the multi-medium data that the receiving center base station sends.
2. system according to claim 1, it is characterized in that, this system also comprises: relay base station, be used for connecting at described wireless broadband network of access and described center base station, and after connecting with described multimedia mobile terminal, receive the multi-medium data that multimedia mobile terminal sends, and be transmitted to center base station, the multi-medium data that the receiving center base station sends is no longer transmitted this multi-medium data or is transmitted to multimedia mobile terminal.
3. system according to claim 1 and 2 is characterized in that, described wireless broadband network comprises: Code Division Multiple Access (CDMA) network, general packet radio service (GPRS) network or China Mobile multimedia broadcasting CMMB bidirectional communication network.
4. system according to claim 3, it is characterized in that, when described wireless broadband network is the CMMB bidirectional communication network, described center base station is that uplink transmission resource is used for described multimedia mobile terminal transmission multi-medium data with the resource distribution at the time slot place of the wherein N except first time slot TS0 in the CMMB radio frames, the resource distribution at other time slot place is sent multi-medium data for the downlink transfer resource is used for center base station, and center base station sends to multimedia mobile terminal with first time slot TS0 of resource allocation information by this CMMB radio frames; Wherein, N is integer and 1≤N≤39.
5. system according to claim 4, it is characterized in that, described multimedia mobile terminal also is used for sending the uplink random access sequence in the setting OFDM symbol of the wherein M time slot that a described N time slot disposes, and inserts described CMMB bidirectional communication network, and wherein M is integer and 1≤M≤N.
6. system according to claim 1 and 2 is characterized in that, described center base station is one or more; Described multimedia mobile terminal is one or more.
7. system according to claim 1 and 2 is characterized in that described center base station is set to Police Command Center, and this Police Command Center also possesses multi-medium data transmission control, user's rights of using and identity authentication function.
8. system according to claim 2 is characterized in that described relay base station is set to possess the command car of in-vehicle wireless communications device.
9. system according to claim 1 and 2 is characterized in that, described multimedia mobile terminal is the terminal that comprises multimedia device, analog to digital converter and radio transmitting device;
Wherein, multimedia device is used to gather multi-medium data, will show from the analog signal of analog to digital converter;
Described analog to digital converter, the multi-medium data that is used for described multimedia device is collected offers radio transmitting device after analog signal conversion is digital signal; To be converted to analog signal from the digital signal of radio transmitting device and offer described multimedia device;
Described radio transmitting device, the digital signal that is used for receiving carry out radio frequency and send; The formation digital signal offers described analog to digital converter after receiving rf data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910009008A CN101808227A (en) | 2009-02-12 | 2009-02-12 | Emergency wireless broadband communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910009008A CN101808227A (en) | 2009-02-12 | 2009-02-12 | Emergency wireless broadband communication system |
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| CN101808227A true CN101808227A (en) | 2010-08-18 |
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| CN200910009008A Pending CN101808227A (en) | 2009-02-12 | 2009-02-12 | Emergency wireless broadband communication system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103795986A (en) * | 2014-02-24 | 2014-05-14 | 山东易构软件技术有限公司 | Mobile monitoring system |
| CN104361732A (en) * | 2014-11-26 | 2015-02-18 | 北方重工集团有限公司 | Intelligent wireless communication signal collecting system for long-distance transmission line |
| CN104702892A (en) * | 2013-12-09 | 2015-06-10 | 深圳市盛思维科技有限公司 | System and method for real-time video transmission based on Mesh network |
| CN107995610A (en) * | 2017-11-09 | 2018-05-04 | 安徽帆扬通信电子技术有限公司 | A kind of emergency communication system |
| CN109962761A (en) * | 2017-12-25 | 2019-07-02 | 华为技术有限公司 | A kind of communication means and device |
| CN112104991A (en) * | 2019-06-18 | 2020-12-18 | 深圳市振瀚信息技术有限公司 | Emergency communication network |
| CN114750809A (en) * | 2022-05-12 | 2022-07-15 | 国能神东煤炭集团有限责任公司 | Control system, method and device for rail vehicle |
-
2009
- 2009-02-12 CN CN200910009008A patent/CN101808227A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104702892A (en) * | 2013-12-09 | 2015-06-10 | 深圳市盛思维科技有限公司 | System and method for real-time video transmission based on Mesh network |
| CN103795986A (en) * | 2014-02-24 | 2014-05-14 | 山东易构软件技术有限公司 | Mobile monitoring system |
| CN104361732A (en) * | 2014-11-26 | 2015-02-18 | 北方重工集团有限公司 | Intelligent wireless communication signal collecting system for long-distance transmission line |
| CN107995610A (en) * | 2017-11-09 | 2018-05-04 | 安徽帆扬通信电子技术有限公司 | A kind of emergency communication system |
| CN109962761A (en) * | 2017-12-25 | 2019-07-02 | 华为技术有限公司 | A kind of communication means and device |
| CN109962761B (en) * | 2017-12-25 | 2020-09-11 | 华为技术有限公司 | Communication method and device |
| CN112104991A (en) * | 2019-06-18 | 2020-12-18 | 深圳市振瀚信息技术有限公司 | Emergency communication network |
| CN114750809A (en) * | 2022-05-12 | 2022-07-15 | 国能神东煤炭集团有限责任公司 | Control system, method and device for rail vehicle |
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Application publication date: 20100818 |