CN206294349U - Distributed common-frequency simulcasting signal transmitting apparatus and system - Google Patents

Abstract

The utility model provides a kind of distributed common-frequency simulcasting signal transmitting apparatus and system, is related to moving communicating field.The distributed common-frequency simulcasting signal transmitting apparatus only need to receive the signal of communication that intelligent terminal sends by the communication unit of each base station with system,Each base station obtains the signal intensity of the signal of communication for receiving and is distributed to other base stations by communication unit by signal intensity acquiring unit,The communication signal strength for oneself receiving is compared by comparing unit and is compared so that it is determined that master base station with other base station strength of transmitted signals in each base station,The signal of communication that the intelligent terminal that master base station will be received sends is distributed to the multiple base station and receiving terminal,Cloud Server need not be passed through and sentence choosing to carry out master base station,When one of base station is damaged,The multiple base station remains able to normal work,It is not in the phenomenon of the paralysis of whole distribution common-frequency simulcasting signal transmission system,Improve distributed common-frequency simulcasting signal transmission system reliability and stability.

Description

Distributed common-frequency simulcasting signal transmitting apparatus and system

Technical field

The utility model is related to moving communicating field, is filled in particular to a kind of distributed common-frequency simulcasting signal transmission Put and system.

Background technology

Digital common-frequency broadcasting system is often used as emergency communication, and high reliability, high stability are to judge it is digital same The important indicator of frequency simulcasting system quality.Current digital common-frequency broadcasting system is covered for realizing signal of communication large area, generally Take and multiple base stations are networked with wired IP or E1 links, and data source is carried out in the case where background service center is uniformly controlled Sentence choosing；Voice is uploaded to interchanger and signal of communication is distributed into each base station by selected base station；Last each participation base station Issued by the synchronization of GPS time service control datas and frequency locking.On the one hand, if background service center breaks down, will Directly result in the paralysis of whole system；On the other hand, using wired IP or E1 link connections mode, if link occurs to interrupt base Standing will form an isolated island, it will influence the normal work of other base stations.

Utility model content

In view of this, the purpose of the utility model embodiment is to provide a kind of distributed common-frequency simulcasting signal transmitting apparatus With system.

In a first aspect, a kind of distributed common-frequency simulcasting signal transmitting apparatus that the utility model embodiment is provided, the dress Put including：

Communication unit, for receiving the signal of communication that an intelligent terminal sends；

Signal intensity acquiring unit, electrically connects with the communication unit, for obtaining the communication that the intelligent terminal sends The signal intensity of signal；

The signal intensity that the communication unit is additionally operable to the signal of communication for sending the intelligent terminal of acquisition is distributed to multiple Base station simultaneously receives the signal intensity that the multiple base station sends；

Comparing unit, electrically connects with the signal intensity acquiring unit, the communication unit, for the intelligence is whole The signal intensity of the signal of communication for sending is held to be made comparisons respectively with the multiple signal intensities for receiving；

If the signal intensity of the signal of communication that the intelligent terminal for receiving sends sends more than the multiple base station Multiple signal intensities；The communication unit is additionally operable to send the signal of communication that the intelligent terminal sends to the multiple base station And a receiving terminal.

Second aspect, the distributed common-frequency simulcasting signal transmission system include set up communication connection multiple base stations and The intelligent terminal and receiving terminal of communication connection are set up with multiple base stations respectively, each described base station includes communication unit, letter Number intensity acquiring unit and comparing unit, the communication unit are equal with the signal intensity acquiring unit, the comparing unit Electrical connection, the signal intensity acquiring unit is electrically connected with comparing unit,

The intelligent terminal is used to send signal of communication to base station each described；

The communication unit is used to receive the signal of communication that the intelligent terminal sends；The signal intensity acquiring unit is used It is distributed to described in multiple in the signal intensity for obtaining the signal intensity of the signal of communication that the intelligent terminal sends and will get Multiple base stations；The comparing unit is used for the signal intensity and the multiple for receiving of the signal of communication for sending the intelligent terminal Signal intensity is made comparisons respectively；If the signal intensity of the signal of communication that the intelligent terminal for receiving sends is more than the multiple Multiple signal intensities that base station sends, the communication unit is additionally operable to send the signal of communication that the intelligent terminal sends to institute State multiple base stations and the receiving terminal；

The signal of communication that communication unit sends that the multiple base station is used to receive distinguishes synchronized transmissions to next stage Base station and receiving terminal.

Compared with prior art, the utility model embodiment provide a kind of distributed common-frequency simulcasting signal transmitting apparatus with System, it is only necessary to which the signal of communication that intelligent terminal sends is received by the communication unit between each base station, and each base station is logical Signal intensity acquiring unit is crossed to obtain the signal intensity of the signal of communication for receiving and be distributed to by communication unit the multiple Base station, it is strong with the multiple base station sending signal that the communication signal strength for oneself receiving is compared in each base station by comparing unit Degree is compared, if the communication signal strength that one of base station receives is all higher than the multiple base station strength of transmitted signals, Then the base station determines oneself for master base station (data source), and the signal of communication that the intelligent terminal that master base station will be received sends is distributed to Other base stations and receiving terminal, so that need not pass through Cloud Server sentences choosing to carry out master base station (data source), when wherein one When individual base station is damaged, other base stations remain able to normal work, are not in whole distribution common-frequency simulcasting signal transmission system Paralysis phenomenon, improve distributed common-frequency simulcasting signal transmission system reliability and stability.

To enable above-mentioned purpose of the present utility model, feature and advantage to become apparent, preferred embodiment cited below particularly, and Coordinate appended accompanying drawing, be described in detail below.

Brief description of the drawings

It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Accompanying drawing in type embodiment, is clearly and completely described, it is clear that retouched to the technical scheme in the utility model embodiment The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Generally described in accompanying drawing herein and The component of the utility model embodiment for showing can be arranged and designed with a variety of configurations.Therefore, below to attached The detailed description of the embodiment of the present utility model provided in figure is not intended to limit claimed scope of the present utility model, But it is merely representative of selected embodiment of the present utility model.Based on the embodiment in the utility model, ordinary skill people The every other embodiment that member is obtained under the premise of creative work is not made, belongs to the model of the utility model protection Enclose.

The interaction signal of the distributed common-frequency simulcasting signal transmission system that Fig. 1 is provided for the utility model preferred embodiment Figure.

The circuit connection frame of the distributed common-frequency simulcasting signal transmitting apparatus that Fig. 2 is provided for the utility model preferred embodiment Figure.

Wherein, the corresponding relation between reference and component names is as follows：Communication unit 101, signal intensity obtains single Unit 102, comparing unit 103, computing unit 104, counting unit 105, communication control unit 106, judging unit 107, encryption is single Unit 108, base station 109, signal exchange device 110, database server 111, intelligent terminal 112, receiving terminal 113.

Specific embodiment

Below in conjunction with accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out clearly Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole realities Apply example.The component of the utility model embodiment generally described and illustrated in accompanying drawing herein can be come with a variety of configurations Arrangement and design.Therefore, the detailed description of embodiment of the present utility model below to providing in the accompanying drawings is not intended to limit Claimed scope of the present utility model, but it is merely representative of selected embodiment of the present utility model.Based on the utility model Embodiment, the every other embodiment that those skilled in the art are obtained on the premise of creative work is not made, all Belong to the scope of the utility model protection.

It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined in individual accompanying drawing, then it need not be further defined and explained in subsequent accompanying drawing.Meanwhile, it is new in this practicality In the description of type, term " first ", " second " etc. are only used for distinguishing description, and it is not intended that indicating or implying relatively important Property.

The utility model is described in further detail below by specific embodiment and with reference to accompanying drawing.

Refering to a kind of distributed common-frequency simulcasting signal transmitting apparatus that Fig. 1, Fig. 2, the utility model embodiment are provided, this point Cloth common-frequency simulcasting transmitting device can be base station 109.Intelligent terminal 112, signal exchange device 110 and multiple base stations 109 Between set up communication connection, signal exchange device 110 and receiving terminal 113 set up communication connection.As shown in Fig. 2 the distribution Formula common-frequency simulcasting signal transmitting apparatus include that communication unit 101, signal intensity acquiring unit 102, comparing unit 103, calculating are single Unit 104, counting unit 105, judging unit 107, communication control unit 106 and ciphering unit 108.In the present embodiment, compare Unit 103, the signal intensity acquiring unit 102 of signal intensity acquiring unit 104, computing unit 104, judging unit 107, communication control Unit processed 106 and ciphering unit 108 can be integrated in the master controller of base station 109, naturally it is also possible to be independently arranged, herein not It is limited.

The communication unit 101 is used to receive the signal of communication that an intelligent terminal 112 sends.

In the present embodiment, communication unit 101 can include intermediate station, and intermediate station includes receiver and sender, middle empty station Transmitting-receiving alien frequencies state is typically operated in, the brewed radiofrequency signal that will can be received demodulates audio signal transmission and set to other Audio signal that is standby or receiving other equipment transmission.In addition, communication unit 101 can also include digital link machine, digital link Machine is carried out using the mode of the time slot time division multiple access of single-frequency point 2 (time division multiple access, TDMA) with the external world Communication, when signal of communication is voice signal, 2 time slots for being capable of achieving Radio Link are conversed simultaneously.In addition, communication unit 101 is also MANET wireless connection can be carried out with the multiple base station 109 by digital link machine, being formed with wired IP or E1 links to expand Exhibition redundancy backup link.

The ciphering unit 108 is electrically connected with the communication unit 101, and the ciphering unit 108 is used for communication unit 101 signals of communication for receiving are encrypted.

The mode wherein encrypted includes：Up encryption, descending encryption, up-downgoing difference key encryption and up-downgoing are identical Key is encrypted.When the demand of the confidentiality to communication signal transmissions is higher, can improve logical by being encrypted to signal of communication Believe the security of signal transmission.

The signal intensity acquiring unit 102 is electrically connected with the communication unit 101, the signal intensity acquiring unit 102 signal intensities for being used to be obtained by the communication unit 101 signal of communication that the intelligent terminal 112 sends.

When intelligent terminal 112 sends signal of communication, communication unit 101 can receive the logical of the transmission of intelligent terminal 112 Letter signal, because each base station 109 is different from the distance of intelligent terminal 112 or due to factors such as landform or shelters Cause the signal intensity of the signal of communication of the transmission of intelligent terminal 112 received between each base station 109 different.The present embodiment In, communication unit 101 is obtained after the signal of communication for receiving the transmission of intelligent terminal 112 by signal intensity acquiring unit 102 The signal intensity of the signal of communication for receiving, and receive what the multiple base station 109 was sent by a signal exchange device 110 The signal intensity of multiple signals of communication, wherein signal exchange device 110 can use interchanger or router, not limit herein System.

The communication unit 101 is additionally operable to the communication that intelligent terminal 112 sends for obtaining signal intensity acquiring unit 102 The signal intensity of signal is distributed to multiple base stations 109 and receives the signal intensity of the transmission of the multiple base station 109.

The comparing unit 103 is electrically connected with the signal intensity acquiring unit 102, the communication unit 101, described Comparing unit 103 is additionally operable to be obtained by the signal intensity acquiring unit 102 letter of the signal of communication that intelligent terminal 112 sends Number intensity and the signal intensity that the multiple base stations 109 for receiving send is obtained by the communication unit 101, and by the intelligence The signal intensity of the signal of communication that energy terminal 112 sends is made respectively with multiple signal intensities that the communication unit 101 is received Compare.

If the signal intensity of the signal of communication that the intelligent terminal 112 for receiving sends is more than the multiple base station 109 Multiple signal intensities of transmission, the communication unit 101 be additionally operable to by the signal of communication that the intelligent terminal 112 sends send to The receiving terminal 113 of the multiple base station 109 and.

The signal intensity of the signal of communication that will be received by comparing unit 103 is logical with what the multiple base station 109 sent Believe that the signal intensity of signal is compared, if the signal intensity of the signal of communication for receiving is all higher than the multiple base station 109 and sends out The signal intensity of the signal of communication for sending, the then base station 109 for setting the distributed common-frequency simulcasting device assert oneself to be master base station, and And the signal of communication for sending intelligent terminal 112 is sent to receiving terminal 113 and the multiple base station by communication unit 101 109, the signal of communication that the communication unit 101 that the multiple base station 109 will receive sends distinguishes synchronized transmissions to next stage base Stand 109 and receiving terminal 113.

During specific implementation, in order to improve the accuracy for comparing, multiple signal strength ratio can be respectively carried out Compared with specific mode is：

The comparing unit 103 be additionally operable to the signal intensity of the signal of communication for sending the intelligent terminal 112 with it is described Multiple signal intensities that multiple base stations 109 send are made repeatedly to compare.

The counting unit 105 is electrically connected with the comparing unit 103, the communication unit 101, if one of institute The signal intensity for stating the signal of communication of the transmission of the intelligent terminal 112 that base station 109 receives is all higher than the multiple of the transmission Signal intensity, the counting unit 105 is used to once be counted.In the present embodiment, counting unit 105 uses counter.

The communication unit 101 is additionally operable to the count value distribution that will make repeatedly more afterwards to obtain the counting unit 105 To the multiple base station 109.

The comparing unit 103 be additionally operable to the count value that counting unit 105 described in comparing obtains whether be all higher than it is described many Multiple count values that individual base station 109 sends.

If one of count value for obtaining is all higher than multiple count values of the transmission of the multiple base station 109, the communication Unit 101 is used to send the signal of communication that the intelligent terminal 112 sends to the multiple base station 109.

In the present embodiment, the number of comparisons to signal intensity is not limited, and can be 1 time, 2 times, 3 times, 6 times, 10 times Etc..And depending on the interval time compared every time can be according to actual conditions, in the present embodiment, the interval time compared every time is 10ms.Certainly, the number of times of the counting times for needing to expend more long more, in order to ensure the accuracy for comparing and the time phase for expending To less, the number of times of counting is preferably 6 times.

In addition, when the signal intensity gap that communication unit 101 and the multiple base station 109 receive signal of communication is little (for example, the signal intensity gap of the communication signal strength that receives of communication unit 101 and the multiple base station 1091 5dB with It is interior), if the signal of communication bit error rate of signal of communication that communication unit 101 is received is minimum, using base station 109 as master base station, So as to improve the precision of the signal of communication of master base station distribution.

Therefore, the computing unit 104 and the signal intensity acquiring unit 102, the comparing unit 103, described logical Letter unit 101 is electrically connected, and the computing unit 104 is used to obtain intelligent terminal by the signal intensity acquiring unit 102 The signal intensity of 112 signals of communication for sending and multiple letters that the multiple base station 109 sends are obtained by communication unit 101 Number intensity, and calculate the signal intensity of the signal of communication of the transmission of the intelligent terminal 112 and sent with the multiple base station 109 respectively Multiple signal intensities compare later multiple differences.

Whether the comparing unit 103 is additionally operable to compare the multiple described difference of the acquisition of computing unit 104 default In threshold range.

When communication unit 101 and the multiple base station 109 receive the difference of the signal intensity of signal of communication certain When in threshold range, can assert that communication unit 101 receives the signal intensity substantially phase of signal of communication with the multiple base station 109 Deng.The threshold range can not be limited herein according to depending on actual scene and demand, for example, threshold range can for 1dB~ 5dB。

If the multiple difference is in default threshold range, the computing unit 104 is additionally operable to calculate the intelligence The bit error rate of the signal of communication that terminal 112 sends.

The generation of error code is because in signal transmission, decay changes the voltage of signal, causes signal to meet with the transmission To destruction, error code is produced.Pulse, transmission equipment failure and the other factors that noise, alternating current or lightning are caused can all cause to miss Code (what the signal for such as transmitting was 1 and received is 0, and vice versa), the bit error rate is to weigh data data at the appointed time Transmit the index of accuracy.

The communication unit 101 is additionally operable to receive the bit error rate that the multiple base station 109 calculates；The comparing unit 103 are additionally operable to compare whether the bit error rate that computing unit 104 calculates is respectively less than the error code sent with the multiple base station 109 Rate.

If the bit error rate that computing unit 104 is calculated is respectively less than the bit error rate sent with the multiple base station 109, described Communication unit 101 is used to send the signal of communication that the intelligent terminal 112 sends to the multiple base station 109.

When the intelligent terminal 112 for sending signal of communication is in mobile status, (i.e. intelligent terminal 112 is in roaming and gets over area During state).For example, user is made a phone call the signal of communication that sends when driving with mobile phone, due to each base station 109 of user distance it Between distance constantly change, therefore each base station 109 receives the signal intensity that mobile phone sends and also constantly changes, because This needs each base station 109 to be compared again signal intensity in certain period of time, and then reselects master base station.

Therefore, the computing unit 104 is additionally operable to the signal of the signal of communication for calculating the acquisition within the presetting time The average value of intensity.

Because signal intensity is constantly changing, so the signal of communication by calculating the acquisition in the presetting time Signal intensity the standard that compares as signal intensity of average value.In the present embodiment, the presetting time can be according to actual feelings Depending on condition, such as 1s, 2s, 3s etc. are not limited herein.

In the present embodiment, comparing unit 103 passes through to compare the average of the signal intensity that the intelligent terminal 112 for receiving sends Value whether in presetting scope so as to decide whether to compare as signal intensity again.When the transmission of intelligent terminal 112 When the signal intensity of signal of communication is larger (being, for example, less than 80dBm), the practical significance of master base station is changed less, therefore without again Determine master base station, the stability that master base station can be kept frequently to change.In the present embodiment, presetting interior scope is strong for signal Scope when degree is weaker, such as 80dBm~100dBm, of course, presetting interior scope can be set according to actual conditions.Work as letter When the average value of number intensity is in presetting scope, i.e., master base station receive signal of communication it is weaker when, now change master base station Practical function it is larger, it is therefore desirable to redefine master base station.

Therefore, the comparing unit 103 is additionally operable to the intelligent terminal that computing unit 104 described in comparing is calculated Whether the average value of the signal intensity of 112 signals of communication for sending is in presetting scope.

If the average value of the signal intensity of the signal of communication that the intelligent terminal 112 sends is in presetting scope, institute State comparing unit 103 and be additionally operable to the signal intensity of the signal of communication that intelligent terminal 112 described in comparing sends and the multiple base station The 109 multiple signal intensities for sending make comparisons after acquisition multiple differences whether more than presetting first threshold.This implementation In example, presetting first threshold can be 3dBm, 4dBm, 5dBm etc., not be limited herein.

If whether one of difference is more than presetting first threshold, the comparing unit 103 is re-executed institute The signal intensity for stating the signal of communication of the transmission of intelligent terminal 112 is distinguished with multiple signal intensities that the multiple base station 109 sends The step of making comparisons.

In addition, when the signal intensity of the signal of communication received in communication unit 101 is very weak, within the regular hour again Determine that master base station 101 is necessary.

Therefore, the comparing unit 103 is additionally operable to the intelligent terminal that computing unit 104 described in comparing is calculated Whether the average value of the signal intensity of 112 signals of communication for sending is more than presetting Second Threshold.

In the present embodiment, presetting Second Threshold is the signal intensity when signal intensity of signal of communication is very weak, for example, Presetting Second Threshold can be 100dBm, 110dBm, 120dBm etc., not be limited herein.Herein it is emphasized that Second Threshold is not fallen within above-mentioned presetting scope, and the end value of presetting scope is Second Threshold, for example, Presetting scope is that then Second Threshold is 100dBm, so sets and is capable of achieving signal intensity more than 80dBm and less than 100dBm Size compares without interruption, so as to realize that receiving end signal is received without interruption.

If the signal intensity of the signal of communication that the intelligent terminal 112 sends is more than presetting Second Threshold, the ratio The signal intensity for being additionally operable to the signal of communication that intelligent terminal 112 described in comparing sends compared with unit 103 is sent out with the multiple base station 109 The multiple signal intensities sent compare after acquisition multiple differences whether more than the 3rd presetting threshold value.

When the signal intensity of the signal of communication sent in intelligent terminal 112 is more than presetting Second Threshold, signal of communication Signal intensity it is very weak, therefore the 3rd threshold value setting when should be as far as possible less than normal, the signal of communication that communication unit 101 is received As long as multiple signal intensities that signal intensity sends with the multiple base station 109 compare after acquisition multiple differences more than pre- During three threshold value of setting, master base station is just redefined, so that the switching of master base station has certain reliability, usual feelings Under condition, the 3rd threshold value is less than first threshold, and such as the 3rd threshold value is 1dBm, 2dBm.

If one of difference is more than the 3rd presetting threshold value, the comparing unit 103 is additionally operable to re-execute institute The signal intensity for stating the signal of communication of the transmission of intelligent terminal 112 is distinguished with multiple signal intensities that the multiple base station 109 sends The step of making comparisons.

Compare the average value of the signal intensity that the intelligent terminal 112 that receives sends, presetting by comparing unit 103 The signal intensity of the signal of communication that logical relation between scope, Second Threshold and intelligent terminal 112 send with it is the multiple Multiple signal intensities that base station 109 sends compare after multiple differences and the first threshold of acquisition, the logic of the 3rd threshold value closes System, so as to decide whether that the mode for comparing as signal intensity again switches the switching of method for three-level more area's thresholding.

In addition, in the present embodiment, communication unit 101 and the multiple base of the distributed common-frequency simulcasting signal transmitting apparatus 109 are stood in the case of wired IP or E1 link connections are normal, prioritizing selection wire link is communicated.When with any one base When 109 wire links of standing are interrupted, wireless self-networking link is enabled automatically and is communicated, when wire link recovers normal, communication Communication connection mode between unit 101 and the base station 109 automatically switches back into wire link connection, realizes automatic switchover, complete Need not manually participate in entirely, it is convenient and swift.

Specifically, the communication unit 101 is also electrically connected with the communication control unit 106, the judging unit 107 Connect, the communication unit 101 is additionally operable to send cable port detecting order to the multiple base station 109.

The judging unit 107 is used to judging within the regular hour whether the communication unit 101 receives described many The feedback command sent after the response cable port detecting order of individual base station 109.

Communication unit 101 sends cable port detecting order to the multiple base station 109, and is sentenced by judging unit 107 The feedback sent after the response cable port detecting order whether certain hour receives the multiple base station 109 of breaking refers to Make detecting whether wired connection of the base station 109 between connects.Wherein, judging unit 107 is integrated in controller.

The judging unit 107 is also electrically connected with the communication control unit 106, if leading to if judging unit 107 is determined Letter unit 101 does not receive the feedback command of the transmission of one of base station 109, and the communication control unit 106 is used to control institute State communication unit 101 and set up wireless communication connection with one of base station 109.

When judging unit 107 determines the feedback command that communication unit 101 does not receive the transmission of one of base station 109 When, then the wire communication disconnecting of the distributed common-frequency simulcasting signal transmitting apparatus and one of base station 109 is illustrated, The now control of communication control unit 106 communication unit 101 switches to nothing with the communication connection mode of one of base station 109 Line is communicated to connect.

The communication unit 101 is additionally operable to send cable port detecting order one of base station 109；

Described in the judging unit 107 is additionally operable to judge within the regular hour whether the communication unit 101 receives The feedback command sent after the response cable port detecting order of one of base station 109.

If after the response that one of base station 109 is received within the regular hour cable port detecting order The feedback command of transmission, the communication control unit 106 is additionally operable to control the communication unit 101 to switch communication connection mode To wire communication connection.

The distributed common-frequency simulcasting signal transmitting apparatus set up radio communication in the base station 109 being connected with interruption wire communication After connection, continue transmission cable port detecting instruction and interrupt wire communication company to the distributed common-frequency simulcasting signal transmitting apparatus The base station 109 for connecing, receives with the distribution with frequency when judging unit 107 determines communication unit 101 within the regular hour The feedback sent after cable port detecting order is responded with the base station 109 for broadcasting signal transmitting apparatus and setting up wireless communication connection During instruction, then it is assumed that wire communication connecting fault is repaired, therefore the control of communication control unit 106 is same with frequency with the distribution The communication connection mode for broadcasting the base station 109 that signal transmitting apparatus set up wireless communication connection is switched to wire communication connection.

Second aspect, as shown in figure 1, the utility model embodiment additionally provides a kind of distributed common-frequency simulcasting signal transmission System is, it is necessary to explanation, the distributed common-frequency simulcasting signal transmission system that the present embodiment is provided, its general principle and generation Technique effect it is identical with above-described embodiment, be briefly describe, the utility model embodiment part do not refer to part, refer to Corresponding contents in the embodiment stated.The distributed common-frequency simulcasting signal transmission system includes setting up multiple base stations of communication connection 109 and respectively with multiple base stations 109 set up communication connection intelligent terminal 112, signal exchange device 110 and with signal hand over Exchange device 110 sets up receiving terminal 113, the database server 111 of communication connection, and each base station 109 includes communication unit 101st, signal intensity acquiring unit 102 and comparing unit 103, communication unit 101 and signal intensity acquiring unit 102, compare Unit 103 is electrically connected, and signal intensity acquiring unit 102 is electrically connected with comparing unit 103.

The intelligent terminal 112 is used to send signal of communication to base station 109 each described.

The communication unit 101 is used to receive the signal of communication that an intelligent terminal 112 sends；The signal intensity obtains single Unit 102, the signal intensity of the signal of communication for obtaining the transmission of the intelligent terminal 112；The communication unit 101 be additionally operable to by The signal intensity of the signal of communication that the intelligent terminal 112 of acquisition sends is distributed to multiple base stations 109 and receives the multiple base station 109 signal intensities for sending；The signal that the comparing unit 103 is used for the signal of communication for sending the intelligent terminal 112 is strong Spend and made comparisons respectively with the multiple signal intensities for receiving；If the signal of communication that the intelligent terminal 112 for receiving sends Signal intensity is additionally operable to the intelligence more than multiple signal intensities that the multiple base station 109 sends, the communication unit 101 The signal of communication that terminal 112 sends is sent to the multiple base station 109 and the receiving terminal 113.

When intelligent terminal 112 sends signal of communication, the communication unit 101 of each base station 109 can receive intelligent end The signals of communication that end 112 sends, because each base station 109 is different from the distance of intelligent terminal 112 or due to landform or screening The factors such as block material can cause the signal intensity of the signal of communication of the transmission of intelligent terminal 112 received between each base station 109 It is different.In the present embodiment, communication unit 101 is obtained after the signal of communication for receiving the transmission of intelligent terminal 112 by signal intensity Take unit 102 and obtain the signal intensity of the signal of communication for receiving, and receive the multiple base station 109 and handed over by the signal The signal intensity of multiple signals of communication that exchange device 110 sends, wherein signal exchange device 110 can use interchanger or route Device, is not limited herein.

The multiple base station 109 is used for the signal of communication that communication unit 101 the sends difference synchronized transmissions that will be received extremely Next stage base station 109 and receiving terminal 113.

The signal intensity of the signal of communication that each base station 109 will be received by comparing unit 103 and other multiple bases The signal intensity of 109 signals of communication for receiving of standing is compared, if the communication unit 101 of one of base station 109 is received Signal of communication the signal intensity of signal of communication that receives more than other any one base stations 109 of signal intensity, then assert Oneself it is master base station, the signal intensity of the signal of communication that other base stations 109 receive is received less than other any one base stations 109 During the signal intensity of the signal of communication for arriving, then assert oneself to be ordinary base station.The communication unit 101 of master base station is whole by the intelligence The signal of communication that end 112 sends is sent to multiple ordinary base stations and the receiving terminal 113, and multiple ordinary base stations will be received The signal of communication that sends of communication unit 101 distinguish synchronized transmissions to next stage base station 109 and receiving terminal 113.

In the present embodiment, when needing using mobile base station (for example, Emergency communication vehicle) or the radio chains roadbed positioned at high mountain Stand 109 (it is extremely difficult due to laying wired connection cable between each base station 109 of high mountain, generally using nothing Line is communicated to connect) when needing to set up wireless communication connection with other base stations 109, need to only configure Radio Link machine with base station 109 Identical single-frequency dot frequency, when the response cable port that other base stations 109 are not received in the regular hour of mobile base station is detectd Survey the feedback command sent after order, you can realize broadcasting the seamless networking of net with same, it is convenient and swift without artificial participation.

In the present embodiment, the distributed common-frequency simulcasting signal transmission system can also in the following ways determine master base station：1、 The accuracy of master base station is determined to improve by way of carrying out multiple signal intensity and comparing.2nd, received in each base station 109 When the signal intensity gap of signal of communication is little (for example, the signal intensity gap of each base station 109 is within 5dB), can lead to The minimum base station 109 of the signal of communication bit error rate of signal is believed as master base station, so that improve the signal of communication of master base station distribution Precision；3rd, when the intelligent terminal 112 for sending signal of communication is under mobile status, (i.e. intelligent terminal 112 is in roaming and gets over area State when).For example, user is made a phone call the signal of communication that sends when driving with mobile phone, due to each base station 109 of user distance The distance between constantly change, therefore each base station 109 receives the signal intensity that mobile phone sends and also constantly changes, Therefore each base station 109 is needed to reselect master base station by three-level more area's threshold method in certain period of time.Above-mentioned is specific Implementation method the embodiment of first aspect offer is provided, it is just no longer herein to repeat more.

The database server 111 be used for store each base station 109 get signal of communication field intensity information and its His information.

In sum, the utility model embodiment is provided a kind of distributed common-frequency simulcasting signal transmitting apparatus and system, Only need to obtain and connect by the signal of communication that intelligent terminal 112 sends that receives between each base station 109, and each base station 109 The signal intensity of the signal of communication for receiving simultaneously is distributed to other base stations 109, and each base station 109 judges the communication for oneself receiving Signal intensity is compared with other strength of transmitted signals of base station 109, if one of base station 109 determines oneself received Communication signal strength be all higher than other strength of transmitted signals of base station 109, then oneself is assert for master base station (data source), so that nothing Choosing need to be sentenced to carry out master base station (data source) by Cloud Server, when one of base station 109 is damaged, other base stations 109 Normal work is remained able to, is not in the phenomenon of the paralysis for causing whole distribution common-frequency simulcasting signal transmission system, improved Distributed common-frequency simulcasting signal transmission system reliability and stability, it is practical；Between each base station 109 in wired IP or In the case of E1 link connections are normal, prioritizing selection wire link is communicated, and when wire link is interrupted, enables wireless automatically MANET link is communicated.When wire link recovers normal, the communication connection mode between base station 109 and base station 109 is certainly It is dynamic to switch back into wire link connection；Wireless switching self adaptation has been realized, it is convenient and swift completely without artificial participation；And The switching when area is got in roaming of intelligent terminal 112, using classification thresholding control, realizes that handoff procedure has smooth, stabilization and without in Disconnected the characteristics of.

In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " sets Put ", " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, Or be integrally connected；Can mechanically connect, or electrically connect；Can be joined directly together, it is also possible to by intermediary It is indirectly connected to, can is two connections of element internal.For the ordinary skill in the art, can be managed with concrete condition Solve concrete meaning of the above-mentioned term in the utility model.

It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined in individual accompanying drawing, then it need not be further defined and explained in subsequent accompanying drawing.

It is term " " center ", " on ", D score, "left", "right", " perpendicular, it is necessary to explanation in description of the present utility model Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outward " be based on orientation shown in the drawings or position relationship, or It is the orientation or position relationship usually put when the utility model product is used, is for only for ease of description the utility model and letter Change description, rather than indicate imply signified device or element must have specific orientation, with specific azimuth configuration and Operation, therefore it is not intended that to limitation of the present utility model.Additionally, term " first ", " second ", " the 3rd " etc. are only used for area Divide description, and it is not intended that indicating or implying relative importance.

Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.

Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.It should be noted that Arrive：Similar label and letter represents similar terms in following accompanying drawing, therefore, once determined in a certain Xiang Yi accompanying drawing Justice, then need not further be defined and be explained in subsequent accompanying drawing to it.

The above, specific embodiment only of the present utility model, but protection domain of the present utility model do not limit to In this, any one skilled in the art can readily occur in change in the technical scope that the utility model is disclosed Or replace, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be described with power The protection domain that profit is required is defined.

Claims (10)

1. a kind of distributed common-frequency simulcasting signal transmitting apparatus, it is characterised in that described device includes：

Communication unit, for receiving the signal of communication that an intelligent terminal sends；

Signal intensity acquiring unit, electrically connects with the communication unit, for obtaining the signal of communication that the intelligent terminal sends Signal intensity；

The signal intensity that the communication unit is additionally operable to the signal of communication for sending the intelligent terminal of acquisition is distributed to multiple base stations And receive the signal intensity that the multiple base station sends；

Comparing unit, electrically connects with the signal intensity acquiring unit, the communication unit, for the intelligent terminal to be sent out The signal intensity of the signal of communication for sending is made comparisons respectively with the multiple signal intensities for receiving；

If the signal intensity of the signal of communication that the intelligent terminal for receiving sends is more than the multiple that the multiple base station sends Signal intensity, the communication unit be additionally operable to send the signal of communication that the intelligent terminal sends to the multiple base station and One receiving terminal.

2. distributed common-frequency simulcasting signal transmitting apparatus according to claim 1, it is characterised in that described distributed with frequency Also include computing unit with signal transmitting apparatus are broadcast, the computing unit and the signal intensity acquiring unit, described compare singly First, described communication unit is electrically connected,

The computing unit be used to calculating the signal intensity of the signal of communication that the intelligent terminal sends respectively with the multiple base The multiple signal intensities for sending of standing compare later multiple differences；

Whether the comparing unit is additionally operable to compare the multiple described difference of acquisition in default threshold range；

If the multiple difference is in default threshold range, the computing unit is additionally operable to calculate the intelligent terminal transmission Signal of communication the bit error rate；

The communication unit is additionally operable to receive the bit error rate that the multiple base station calculates；

The comparing unit is additionally operable to compare whether the bit error rate for calculating is respectively less than the error code sent with the multiple base station Rate；

If the bit error rate for calculating is respectively less than the bit error rate sent with the multiple base station, the communication unit is used for will be described The signal of communication that intelligent terminal sends is sent to the multiple base station.

3. distributed common-frequency simulcasting signal transmitting apparatus according to claim 1, it is characterised in that described distributed with frequency Also include counting unit with signal transmitting apparatus are broadcast, the counting unit is electrically connected with the comparing unit, the communication unit Connect,

The signal intensity that the comparing unit is additionally operable to the signal of communication for sending the intelligent terminal is sent out with the multiple base station The multiple signal intensities sent are made repeatedly to compare；

If the signal intensity of the signal of communication that the intelligent terminal that one of them described base station receives sends is all higher than described Multiple signal intensities of transmission, the counting unit is used to once be counted；

The communication unit is additionally operable to make that the count value of acquisition repeatedly is distributed into the multiple base station more afterwards；

Whether the count value that the comparing unit is additionally operable to compare acquisition is all higher than multiple count values that the multiple base station sends；

If one of count value for obtaining is all higher than multiple count values that the multiple base station sends, the communication unit is used for The signal of communication that the intelligent terminal sends is sent to the multiple base station.

4. distributed common-frequency simulcasting signal transmitting apparatus according to claim 1, it is characterised in that described distributed with frequency Also include computing unit with signal transmitting apparatus are broadcast, the computing unit and the signal intensity acquiring unit, described compare singly Unit electrically connects,

The computing unit is additionally operable to the average value of the signal intensity of the signal of communication for calculating the acquisition within the presetting time；

The comparing unit be additionally operable to the signal intensity of the signal of communication that intelligent terminal described in comparing sends average value whether In presetting scope；

It is described relatively more single if the average value of the signal intensity of the signal of communication that the intelligent terminal sends is in presetting scope Unit is additionally operable to multiple signals that the signal intensity of the signal of communication that intelligent terminal described in comparing sends sends with the multiple base station Intensity make comparisons after acquisition multiple differences whether more than presetting first threshold；

If whether one of difference is more than presetting first threshold, the comparing unit is re-executed the intelligence eventually The step of holding the signal intensity of the signal of communication for sending to be made comparisons respectively with the multiple signal intensities for receiving.

5. distributed common-frequency simulcasting signal transmitting apparatus according to claim 4, it is characterised in that

The computing unit is additionally operable to the signal of the signal of communication of each acquisition of base station calculating within the presetting time The average value of intensity；

Whether the comparing unit is additionally operable to the signal intensity of the signal of communication that intelligent terminal described in comparing sends more than presetting Second Threshold；

If the signal intensity of the signal of communication that the intelligent terminal sends is more than presetting Second Threshold, the comparing unit is also For multiple signal intensities that the signal intensity for comparing the signal of communication that the intelligent terminal sends sends with the multiple base station Whether multiple differences of the acquisition after comparing are more than the 3rd presetting threshold value；

If one of difference is more than the 3rd presetting threshold value, the comparing unit is additionally operable to re-execute the intelligence eventually The step of holding the signal intensity of the signal of communication for sending to be made comparisons respectively with the multiple signal intensities for receiving.

6. distributed common-frequency simulcasting signal transmitting apparatus according to claim 1, it is characterised in that described distributed with frequency With broadcast signal transmitting apparatus also include judging unit and communication control unit, the communication unit also with the Control on Communication list First, described judging unit is electrically connected,

The communication unit is additionally operable to send cable port detecting order to the multiple base station；

The judging unit is used to judge the sound whether within the regular hour communication unit receives the multiple base station Answer the feedback command sent after the cable port detecting order；

If not receiving the feedback command that one of base station sends, the communication control unit is used to control the communication unit Wireless communication connection is set up with one of base station.

7. distributed common-frequency simulcasting signal transmitting apparatus according to claim 6, it is characterised in that

The communication unit is additionally operable to send cable port detecting order one of base station；

The judging unit is additionally operable to judge within the regular hour whether the communication unit receives one of base The feedback command sent after the response cable port detecting order stood；

If being sent after the response that one of base station is received within the regular hour cable port detecting order Feedback command, the communication control unit is additionally operable to control the communication unit that communication connection mode is switched into wire communication company Connect.

8. distributed common-frequency simulcasting signal transmitting apparatus according to claim 1, it is characterised in that described distributed with frequency Also include ciphering unit with signal transmitting apparatus are broadcast, the ciphering unit is electrically connected with the communication unit,

The ciphering unit is used to be encrypted the signal of communication for receiving.

9. distributed common-frequency simulcasting signal transmitting apparatus according to claim 8, it is characterised in that the mode of the encryption Including：Up encryption, descending encryption, up-downgoing difference key encryption and the encryption of up-downgoing same key.

10. a kind of distributed common-frequency simulcasting signal transmission system, it is characterised in that the distributed common-frequency simulcasting signal transmission system System includes setting up multiple base stations of communication connection and sets up the intelligent terminal of communication connection with multiple base stations respectively and receive eventually End, each described base station include communication unit, signal intensity acquiring unit and comparing unit, the communication unit with it is described Signal intensity acquiring unit, comparing unit electrical connection, the signal intensity acquiring unit are electrically connected with comparing unit,

The intelligent terminal is used to send signal of communication to base station each described；

The communication unit is used to receive the signal of communication that the intelligent terminal sends；The signal intensity acquiring unit is used to obtain Take the signal intensity of the signal of communication that the intelligent terminal sends；The intelligent terminal that the communication unit is additionally operable to obtain sends The signal intensity of signal of communication be distributed to multiple base stations and receive the signal intensity that the multiple base station sends；It is described relatively more single The signal intensity of signal of communication of the unit for the intelligent terminal to be sent is made comparisons respectively with the multiple signal intensities for receiving； If the signal intensity of the signal of communication that the intelligent terminal for receiving sends is more than multiple signals that the multiple base station sends Intensity, the communication unit is additionally operable to send the signal of communication that the intelligent terminal sends to the multiple base station and described Receiving terminal；

The signal of communication that communication unit sends that the multiple base station is used to receive distinguishes synchronized transmissions to next stage base station And receiving terminal.