CN111294838A - Multi-power-station base station, civil air defense warning system and control instruction transmission method - Google Patents
Multi-power-station base station, civil air defense warning system and control instruction transmission method Download PDFInfo
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Abstract
The invention discloses a multi-power-station base station, a civil air defense warning system and a method for transmitting control instructions. Therefore, the embodiment of the invention can transmit the control instruction in time and improve the alarm issuing effect.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a multi-radio base station, a civil air defense warning system and a method for transmitting control instructions.
Background
The civil air defense alarm is an important component of urban air defense engineering, is used for disaster prediction and emergency report under the conditions of disaster relief and sudden accidents at ordinary times and civil air defense in wartime, is a basic means for implementing civil air defense command and organizing personnel evacuation by all levels of civil governments, and is an alarm for sounding people when a city is threatened.
At present, the devices in the people air defense warning system adopt the radio communication technology, and the devices can be radio data transmission stations (radio modems), which can be called radio data transmission stations (wtrus) and radio data transmission modules (wtrus). The method refers to a high-performance professional data transmission station realized by means of DSP technology and radio technology. As shown in fig. 1, fig. 1 is a schematic structural diagram of a people defense warning system provided by the prior art, and includes: the main controller generates a control instruction, the data of the data transmission radio station of the sub-control radio station is transmitted and transmitted to the alarm, and the alarm plays an alarm or broadcasts voice information after being received by the alarm and processed.
The civil air defense warning system has the defects of low communication efficiency, few available frequency points, a half-duplex communication mode and the like due to the adoption of digital radio communication, various functions such as emergency response real-time online, state reporting, intelligent voice, remote power-on, patrol check-in and the like are required to be comprehensively realized under the defects, the digital radio of the branch controller is used for forwarding, and the warning issuing effect is poor.
Disclosure of Invention
In view of this, the multi-station base station provided in the embodiments of the present invention can transmit the control command in time, so as to improve the alarm issuing effect.
According to the civil air defense warning system provided by the embodiment of the invention, the control instruction can be transmitted in time, and the warning issuing effect is improved.
The embodiment of the invention provides a method for transmitting a control instruction, which can enable the control instruction to be transmitted in time and improve the alarm issuing effect.
The embodiment of the invention is realized as follows:
a multi-cell base station comprising: at least three data transmission stations and an uplink communication unit, wherein,
the uplink communication unit is used for establishing communication connection with the master controller, receiving control instructions from the master controller through the communication connection, establishing at least three receiving channels with the at least three data transmission stations, and transmitting the control instructions to the at least three data transmission stations through the at least three receiving channels;
and the at least three data transmission stations are used for establishing at least three receiving channels with the uplink communication unit, establishing at least three sending channels with the alarm, and sending the control instructions received by the at least three receiving channels to the alarm in series or in parallel through the at least three sending channels.
The uplink communication unit comprises a microwave receiving end and a Beidou short message receiving end, wherein,
the microwave receiving end is used for carrying out microwave communication connection with the main controller and receiving a control instruction;
and the Beidou short message receiver is used for carrying out communication by adopting the Beidou short message after automatic switching of uplink communication is carried out when the disconnection of the microwave communication connection is detected, and receiving a control instruction.
The multi-station base station further comprises a state monitoring unit for monitoring the running states of at least three data transmission stations:
and for each data transmission radio station, acquiring the current value of the data transmission radio station, determining whether the current value is within a set current threshold range, if so, normally communicating, otherwise, executing automatic switching of the downlink radio station and sending alarm information.
The data transmission radio station is also used for automatically switching the downlink radio station and comprises:
when the multi-station base station adopts a parallel communication mode, when one of a plurality of data transmission stations is damaged, other data transmission stations are in normal parallel communication, a sending channel is not changed, a receiving channel of a first normal data transmission station is set to be in polling switching of two receiving channels, and abnormal alarm information of the data transmission stations is reported; when two radio stations are damaged, switching the three data transmission radio stations and acting as one data transmission radio station, and setting a receiving channel as three channel polling switching;
when the multi-radio station base station adopts a serial communication mode, when one of a plurality of data transmission radio stations is damaged, the alarms belonging to the data transmission radio station are all controlled by other normal data transmission radio stations, abnormal alarm information of the data transmission radio station is reported, when two alarms belonging to the three data transmission radio stations are distributed to the normal data transmission radio station for control, the abnormal alarm information of the data transmission radio station is reported, and the receiving channel of the normal data transmission radio station is set to be switched in a three-channel cycle mode.
A people-air defense warning system comprising: a master controller, a multi-station base station and an alarm, wherein,
the master controller is used for establishing communication connection with the multi-power-station base station and sending a control command through the communication connection;
the multi-station base station is provided with at least three data transmission stations which are used for establishing communication connection with the master controller, the at least three data transmission stations are respectively in communication connection with different alarms, and the control instructions received from the master controller are transmitted to different alarms in parallel or in series through the at least three different data transmission stations;
and the alarm is used for processing and playing the control command after receiving the control command from the multi-station base station.
The master controller is also used for establishing communication connection with the multi-power-station base stations as microwave communication connection and Beidou short message communication;
the multi-station base station is still used for establishing communication connection with the master controller and is microwave communication connection and big dipper short message communication, includes: generally, microwave communication is adopted to receive a control instruction, when the disconnection of microwave communication connection is detected, after uplink communication is automatically switched, Beidou short messages are adopted to carry out communication, and the control instruction is received.
The multi-station base station further comprises a state monitoring function, and is used for monitoring the running states of at least three data transmission stations:
for each data transmission radio station, acquiring the current value of the data transmission radio station, determining whether the current value is within a set current threshold range, if so, normally communicating, otherwise, executing automatic switching of downlink radio stations and sending alarm information;
the data transmission radio station in the multi-radio station base station is also used for automatic switching of downlink radio stations, and comprises:
when the multi-station base station adopts a parallel communication mode, when one of a plurality of data transmission stations is damaged, other data transmission stations are in normal parallel communication, a sending channel is not changed, a receiving channel of a first normal data transmission station is set to be in polling switching of two receiving channels, and abnormal alarm information of the data transmission stations is reported; when two radio stations are damaged, switching the three data transmission radio stations and acting as one data transmission radio station, and setting a receiving channel as three channel polling switching;
when the multi-radio station base station adopts a serial communication mode, when one of a plurality of data transmission radio stations is damaged, the alarms belonging to the data transmission radio station are all controlled by other normal data transmission radio stations, abnormal alarm information of the data transmission radio station is reported, when two alarms belonging to the three data transmission radio stations are distributed to the normal data transmission radio station for control, the abnormal alarm information of the data transmission radio station is reported, and the receiving channel of the normal data transmission radio station is set to be switched in a three-channel cycle mode.
A method of transmitting control instructions, comprising:
establishing communication connection between the multi-station base station and the master controller, and receiving a control instruction from the master controller through the communication connection;
the multi-station base station is provided with at least three data transmission stations which are respectively in communication connection with different alarms, and the control instructions received from the master controller are transmitted to different alarms in parallel or in series through the at least three different data transmission stations so that the alarms can be issued after being processed.
The establishing of the communication connection between the multi-station base station and the master controller comprises the following steps: the method comprises the following steps of (1) microwave communication and Beidou short message communication, wherein communication connection is established by adopting the microwave communication, and a control instruction is received; and when the microwave communication connection is detected to be disconnected, the Beidou short message is adopted for communication, and a control instruction is received.
The transmitting the control commands received from the master controller to the different alarms through at least three different data transfer stations further comprises:
monitoring the running states of at least three data transmission radio stations;
when the current value based on the data transmission radio stations is not within the set current value threshold range, judging that some data transmission radio stations are abnormal in communication, and sending alarm information;
the parallel or serial transmission of the control commands received from the master controller to different alarms through at least three different data transmission stations comprises the following steps:
when the multi-station base station adopts a parallel communication mode, when one of a plurality of data transmission stations is damaged, other data transmission stations are in normal parallel communication, a sending channel is not changed, a receiving channel of a first normal data transmission station is set to be in polling switching of two receiving channels, and abnormal alarm information of the data transmission stations is reported; when two radio stations are damaged, switching the three data transmission radio stations and acting as one data transmission radio station, and setting a receiving channel as three channel polling switching;
when the multi-radio station base station adopts a serial communication mode, when one of a plurality of data transmission radio stations is damaged, the alarms belonging to the data transmission radio station are all controlled by other normal data transmission radio stations, abnormal alarm information of the data transmission radio station is reported, when two alarms belonging to the three data transmission radio stations are distributed to the normal data transmission radio station for control, the abnormal alarm information of the data transmission radio station is reported, and the receiving channel of the normal data transmission radio station is set to be switched in a three-channel cycle mode.
As can be seen from the above, in the embodiments of the present invention, the base station is configured to transmit the control command sent by the master controller, and the base station is configured with at least three data transmission stations and an uplink communication unit, wherein the uplink communication unit is configured to receive the control command from the master controller and send the control command to the alarm in parallel or in series through the at least three data transmission stations. Therefore, the embodiment of the invention can transmit the control instruction in time and improve the alarm issuing effect.
Drawings
FIG. 1 is a schematic diagram of a prior art civil air defense warning system;
fig. 2 is a schematic structural diagram of a multi-station base station according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a civil air defense warning system according to an embodiment of the invention;
FIG. 4 is a flowchart of a method for transmitting control commands according to an embodiment of the present invention;
FIG. 5 is a flowchart of a method for issuing alarm information according to an embodiment of the present invention;
FIG. 6 is a flowchart of a method for operating read parameters according to an embodiment of the present invention;
FIG. 7 is a flowchart of a write parameter operation method according to an embodiment of the present invention;
fig. 8 is a flowchart of an active reporting and check-in communication operation method according to an embodiment of the present invention;
fig. 9 is a schematic diagram of a multi-station base station for performing three-station parallel communication according to an embodiment of the present invention;
fig. 10 is a schematic diagram of a multi-station base station for three-station serial communication according to an embodiment of the present invention;
fig. 11 is a schematic diagram of a process of establishing a UDP channel according to an embodiment of the present invention;
fig. 12 is a schematic diagram illustrating a microwave communication process between a master controller and a multi-station base station according to an embodiment of the present invention;
fig. 13 is a schematic diagram of a Beidou short message communication process between a master controller and a multi-power-station base station according to an embodiment of the present invention;
fig. 14 is a schematic diagram of an automatic switching process in a parallel mode of a downlink data transfer station according to an embodiment of the present invention;
fig. 15 is a schematic diagram of an automatic switching process in a serial mode of a downlink data transfer station according to an embodiment of the present invention;
fig. 16 is a schematic diagram of an automatic communication switching process of uplink microwave and beidou short messages according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples.
In order to enable the control instruction to be transmitted in time and improve the issuing effect of the alarm, the base station is arranged to transmit the control instruction sent by the main controller, at least three data transmission radio stations and uplink communication units are arranged in the base station, the uplink communication units are adopted to receive the control instruction from the main controller, and the control instruction is sent to the alarm in parallel or in series through the at least three data transmission radio stations.
Fig. 2 is a schematic structural diagram of a multi-station base station according to an embodiment of the present invention, including: at least three data transmission stations and an uplink communication unit, wherein,
the uplink communication unit is used for establishing communication connection with the master controller, receiving control instructions from the master controller through the communication connection, establishing at least three receiving channels with the at least three data transmission stations, and transmitting the control instructions to the at least three data transmission stations through the at least three receiving channels;
and the at least three data transmission stations are used for establishing at least three receiving channels with the uplink communication unit, establishing at least three sending channels with the alarm, and sending the control instructions received by the at least three receiving channels to the alarm in series or in parallel through the at least three sending channels.
In the multi-power-station base station, the uplink communication unit comprises a microwave receiving end and a Beidou short message receiving end, wherein,
the microwave receiving end is used for carrying out microwave communication connection with the main controller and receiving a control instruction;
and the Beidou short message receiver is used for carrying out communication by adopting the Beidou short message after automatic switching of uplink communication is carried out when the disconnection of the microwave communication connection is detected, and receiving a control instruction.
In the embodiment of the invention, the main controller and the multi-power-station base stations are connected through microwave communication at ordinary times, the microwave communication is an Ethernet local area network, which is equivalent to optical fiber private network communication, a full duplex mode is adopted, the distribution and monitoring in the base station communication can be synchronously carried out, meanwhile, the farthest distance of the microwave communication can reach 20 kilometers, and normal communication can be stabilized as long as the wide visible range is available, so that the project implementation cost is greatly reduced.
When microwave communication is damaged or interfered, the Beidou short message communication is directly and automatically switched to, and the Beidou satellite establishes connection between the main controller and the multi-power-station base station, so that the Beidou communication efficiency is relatively low, but the Beidou communication can be used as the last guarantee, and normal communication of alarm can be guaranteed to the greatest extent in emergency.
When the three radio stations in the embodiment of the invention issue the alarm instruction, the three radio stations respectively adopt three different channels to simultaneously send the control instruction, and the alarm receives the control instruction of any channel, namely, a multi-station base station comprises three data transmission radio stations for simultaneous communication, so that a certain channel of some alarms can be prevented from being interfered and receiving no signal, channel polling transmission does not need to be switched, the issued communication time is saved, because the channel polling transmission is switched, the channel polling transmission must wait until the channel is indicated to be finished, no response is found, the channel is switched to be sent again, and the communication process time is saved by simultaneous parallel transmission.
In embodiments of the present invention, a multi-cell base station with less than 50 (including 50) alarms is preferred because there are fewer vertices in a city and more alarm points in a city, and if all alarms controlled by a base station have relatively longer return latency. The base station adopting the single radio station has the condition that a base station with a plurality of single radio stations is deployed at one extreme point, and the general space conditions of the urban extreme point are limited, so that enough installation space cannot be provided. The multi-station base station provided by the embodiment of the invention can divide the multi-station base station into a plurality of parts, for example, one part is divided into three parts, the installation position of one base station can serve as a plurality of branch controllers, and under the condition, a plurality of numerical control stations, for example, three numerical control stations, manage and control respective alarm areas through serial communication.
In the embodiment of the present invention, the multi-station base station further includes a state monitoring unit, configured to monitor an operation state of at least three data transfer stations. Specifically, when the multi-radio base station sends a control instruction, the current value of each data transmission radio station is obtained, whether the data transmission radio stations are in normal communication is obtained through whether the current value is close to a set current threshold, if a certain data transmission radio station is not in normal communication, the downlink radio stations are automatically switched, and alarm information is sent without human intervention.
The multi-station base station in the embodiment of the invention comprises automatic switching of downlink radio stations and automatic switching of uplink communication when the communication is automatically switched. The following is a detailed description.
The process of automatically switching the downlink radio station comprises the following steps: when the multi-station base station adopts a parallel communication mode, when one of the plurality of data transmission stations is damaged, other data transmission stations can also carry out normal parallel communication, a sending channel is not changed, a receiving channel of the first normal data transmission station is automatically set to be two receiving channels for polling switching, and abnormal alarm information of the data transmission stations is reported; when two radio stations are damaged, the three data transmission radio stations are directly and automatically switched and act as one data transmission radio station, and meanwhile, the receiving channel is set to be in polling switching of three channels; when a plurality of data transmission radio stations adopt a serial communication mode, when one data transmission radio station is damaged, alarms belonging to the data transmission radio station are automatically distributed to other normal data transmission radio stations for control, abnormal alarm information of the data transmission radio station is reported, when two data transmission radio stations are damaged, all alarms belonging to the three data transmission radio stations are automatically distributed to the normal data transmission radio station for control, the abnormal alarm information of the data transmission radio station is reported, and meanwhile, a receiving channel of the normal data transmission radio station is set to be switched in a three-channel turn mode.
The process of the automatic switching of the uplink communication comprises the following steps: when no effective data is returned in the microwave communication, the Beidou short message communication is automatically switched to, and meanwhile, the issuing function of a large data volume on the main controller is limited, such as: and issuing intelligent voice (not including the scheduled intelligent voice) of the content in real time.
Fig. 3 is a schematic structural diagram of a civil air defense warning system provided in an embodiment of the present invention, including: a master controller, a multi-station base station and an alarm, wherein,
the master controller is used for establishing communication connection with the multi-power-station base station and sending a control command through the communication connection;
the multi-station base station is provided with at least three data transmission stations which are used for establishing communication connection with the master controller, the at least three data transmission stations are respectively in communication connection with different alarms, and control instructions received from the master controller are transmitted to the different alarms through the at least three different data transmission stations;
and the alarm is used for processing and then carrying out adaptive playing after receiving the control command from the multi-station base station.
In the system, the master controller is also used for establishing communication connection with the multi-power-station base station into microwave communication connection and Beidou short message communication;
the multi-station base station is still used for establishing communication connection with the master controller and is microwave communication connection and big dipper short message communication, includes: generally, microwave communication is adopted to receive a control instruction, when the disconnection of microwave communication connection is detected, after uplink communication is automatically switched, Beidou short messages are adopted to carry out communication, and the control instruction is received.
In the system, the multi-radio base station further comprises a state monitoring function, which is used for monitoring the running states of at least three data transmission radio stations:
and for each data transmission radio station, acquiring the current value of the data transmission radio station, determining whether the current value is within a set current threshold range, if so, normally communicating, otherwise, executing automatic switching of the downlink radio station and sending alarm information.
In the system, the data transmission station in the multi-station base station is further used for automatic switching of a downlink station, and the system comprises:
when the multi-station base station adopts a parallel communication mode, when one of a plurality of data transmission stations is damaged, other data transmission stations are in normal parallel communication, a sending channel is not changed, a receiving channel of a first normal data transmission station is set to be in polling switching of two receiving channels, and abnormal alarm information of the data transmission stations is reported; when two radio stations are damaged, switching the three data transmission radio stations and acting as one data transmission radio station, and setting a receiving channel as three channel polling switching;
when the multi-radio station base station adopts a serial communication mode, when one of a plurality of data transmission radio stations is damaged, the alarms belonging to the data transmission radio station are all controlled by other normal data transmission radio stations, abnormal alarm information of the data transmission radio station is reported, when two alarms belonging to the three data transmission radio stations are distributed to the normal data transmission radio station for control, the abnormal alarm information of the data transmission radio station is reported, and the receiving channel of the normal data transmission radio station is set to be switched in a three-channel cycle mode.
In order to realize the functions of real-time online, state reporting, intelligent voice, remote power-on, patrol check-in and the like of the alarm, the embodiment of the invention needs one device to carry a plurality of radio stations for parallel communication, but aiming at the practical situation, the alarm has more relative quantity, the reconstruction engineering quantity is large, the cost is high, the base stations with the plurality of radio stations are fewer, one big city is within 10, and the reconstruction cost is relatively low, so that the system shown in figure 3 is adopted for realizing the practical functions based on high-efficiency communication of a data transmission radio station and low cost by increasing the base stations with the plurality of radio stations. The system considers the existing construction condition of the civil air defense warning system, and achieves the purposes of realizing abundant and diverse warning and intelligent voice functions of the civil air defense warning in emergency response through least transformation investment on the basis of realizing the remote warning system. After the embodiment of the invention is applied, the 100% control rate and the 100% response rate of the civil air defense alarm can be really realized. And can be extended to other fields on the basis of the network.
By the technical application of the embodiment of the invention, under the condition of few special frequency points for civil air defense at present, the civil air defense alarm can meet the requirement of civil air defense, and can be directly applied to emergency departments, and the aim of sounding while pulling can be really achieved. The scheme is characterized in that communication equipment is modified on the basis of the existing alarm construction, the existing investment is protected, the existing data transmission radio communication technology is adopted, the modification cost is relatively low, and the market can be rapidly developed under the current civil air defense alarm policy; after the alarm point is transformed and the technology is applied, the alarm point can be butted with an emergency department at any time, so that the alarm point is used for issuing emergency intelligent broadcast at ordinary times, and the alarm point has combat readiness benefit, social benefit and economic benefit.
Fig. 4 is a flowchart of a method for transmitting a control command according to an embodiment of the present invention, which includes the following steps:
and step 402, the multi-power-station base station is provided with at least three data transmission stations which are respectively in communication connection with different alarms, and the control instructions received from the master controller are transmitted to different alarms in parallel or in series through the at least three different data transmission stations so that the alarms are issued after being processed by the alarms.
In the method, establishing a communication connection between the multi-station base station and the master includes: the method comprises the following steps of (1) microwave communication and Beidou short message communication, wherein communication connection is established by adopting the microwave communication, and a control instruction is received; and when the microwave communication connection is detected to be disconnected, the Beidou short message is adopted for communication, and a control instruction is received.
In the method, said transmitting control commands received from the master controller to different alarms via at least three different data transfer stations further comprises:
monitoring the running states of at least three data transmission radio stations;
and when the current value based on the data transmission radio stations is not in the set current value threshold range, judging that the communication of a certain data transmission radio station is abnormal, and sending out alarm information.
In the method, the step of transmitting the control commands received from the master controller to different alarms in parallel or in series through at least three different data transmission stations comprises the following steps:
when the multi-station base station adopts a parallel communication mode, when one of a plurality of data transmission stations is damaged, other data transmission stations are in normal parallel communication, a sending channel is not changed, a receiving channel of a first normal data transmission station is set to be in polling switching of two receiving channels, and abnormal alarm information of the data transmission stations is reported; when two radio stations are damaged, switching the three data transmission radio stations and acting as one data transmission radio station, and setting a receiving channel as three channel polling switching;
when the multi-radio station base station adopts a serial communication mode, when one of a plurality of data transmission radio stations is damaged, the alarms belonging to the data transmission radio station are all controlled by other normal data transmission radio stations, abnormal alarm information of the data transmission radio station is reported, when two alarms belonging to the three data transmission radio stations are distributed to the normal data transmission radio station for control, the abnormal alarm information of the data transmission radio station is reported, and the receiving channel of the normal data transmission radio station is set to be switched in a three-channel cycle mode.
In the method, the control instruction is an issuing instruction, a parameter reading instruction or a parameter writing instruction.
In the method, the method further comprises: the alarm carries out active reporting or/and sign-in communication to the multi-station base station.
The following provides a detailed description of examples of the present invention.
Fig. 5 is a flowchart of a method for issuing alarm information according to an embodiment of the present invention, which includes the following specific steps:
step one, when needing to carry out alarm, intelligent voice distribution and remote power-on and power-off operation, a main controller determines a channel, which is generally an optimal channel selected by integrating previous communication results, and the optimal channel is set on a multi-station base station, and the channel can be directly activated once the multi-station base station receives a frequency locking instruction;
step two, a main frequency device sends a frequency locking instruction, and a multi-station base station directly locks the optimal channel after receiving the frequency locking instruction;
step three, the master controller sends a sending instruction, and the multi-power-station base station directly forwards the sending instruction through the optimal channel after receiving the sending instruction;
in this step, the issue command is a control command;
step four, when the alarm is in idle communication, the alarm can automatically poll and switch channels, generally switches the channels once every 500 milliseconds, when a certain channel receives new data, directly locks the channel, then completely receives the data, analyzes the instruction content and executes the operation shown by the instruction;
step five, the master controller sends the issuing instruction for multiple times when sending the issuing instruction, the specific times of sending implement communication effect setting according to the project, generally 3-8 times, and after the sending of the multiple times is completed, the master controller directly initiates a state query instruction, and the multi-power-station base station forwards the state query instruction;
step six, the alarms all carry wireless back-up addresses, the wireless back-up addresses are increased progressively from 1, as the data transmission stations in the alarms are in half-duplex communication, the back-up can only be sent one by one according to the interval time in sequence, and if the back-up interval time is 500 milliseconds and the wireless back-up address of a certain alarm is 23, the alarms start to receive the query instruction and wait for 23 x 500 to 11500 milliseconds, namely, the wireless back-up address is sent back-up instruction after 11.5 seconds;
and step seven, the multi-power-station base station receives the return instruction of the alarm and directly forwards the return instruction to the main controller, and the main controller analyzes and records the state and sends alarm information aiming at the abnormal information of the alarm.
Fig. 6 is a flowchart of a method for operating read parameters according to an embodiment of the present invention, which specifically includes:
compared with the issuing operation shown in fig. 5, the parameter reading operation method has one less issuing instruction process, which is equivalent to a process of inquiring and displaying back, only the content of the parameter displaying back is more, the parameter reading can be performed singly, or a plurality of or all parameters can be read in a packaging manner, when a plurality of or all parameters are read in a packaging manner, the data content displayed back is longer, and finally, single control operation is performed on a single alarm at this time, and the system control, the area control or the group control cannot be performed. Therefore, the alarm does not need to wait for sending the content according to the wireless feedback address, and directly returns the content of the equipment parameter after receiving the single control instruction.
The parameter reading operation is generally used during installation or maintenance of a multi-station base station and is rarely used at ordinary times.
Fig. 7 is a flowchart of a write parameter operation method provided in an embodiment of the present invention, which specifically includes:
compared with the issuing operation shown in fig. 5, the parameter writing operation method reduces the sending of state query instructions, the main controller determines the channel, then initiates a frequency locking instruction, and the multiple base stations lock the channel; the master controller continues to send a writing parameter issuing instruction, the multi-power-station base station receives and forwards the writing parameter issuing instruction, the alarm locks a channel and receives the parameter instruction, the parameter content specified by the instruction is executed, and if the instruction is a non-single-control instruction, the writing parameter state result is directly indicated back after the instruction directly waits for a set time according to the wireless indication address; if the command is a single control command, the writing parameter state result is directly returned, the returned result is forwarded to the main controller through the multi-power-station base station to be received, and after the main controller analyzes the result, the parameter of the alarm is synchronously stored locally, so that the subsequent parameter arrangement and comparison are facilitated. The write-in parameters can be used for operating a plurality of alarms through group control, zone control and group control and are generally used for setting a certain parameter value; if a plurality of or all parameters are set, single control is recommended because the data volume is generally large.
Here, the parameter writing operation is generally used for installation or maintenance of a multi-station base station, and is rarely used at ordinary times.
Fig. 8 is a flowchart of an active reporting and check-in communication operation method according to an embodiment of the present invention, which specifically includes:
when the alarm is abnormal or the user operates to sign, the alarm directly sends the reported data to the operation of the main control unit, firstly the alarm locks the channel and then sends a state reporting instruction, the multi-station base station receives the channel and is always in a circular switching channel, once a certain channel receives data, the channel is locked and receives the data, the data are directly sent to the main control unit after the data are received, the main control unit records the state and sends the warning information, and meanwhile, the multi-station base station enters a circular switching channel mode after the receiving channel of the multi-station base station is sent.
Fig. 9 is a schematic diagram of a multi-station base station performing three-station parallel communication according to an embodiment of the present invention, which specifically includes:
when an alarm command is issued, three stations in the multi-station base station respectively use three different channels to simultaneously send the command, and the alarm receives the command of any channel, namely, one base station comprises three stations and three channels F1, F2 and F3 for simultaneous communication. The alarm is always polling the switching frequency point, and when the alarm hits a channel receiving the issuing instruction, the alarm is received by the channel, and the alarm is directly ignored when the alarm receives other channels. Under a general condition, the three frequency points transmit at the same time, and the issuing instruction cannot be received at other frequency points for the second time, so that the condition that a certain channel of some alarms has interference and cannot receive a channel is avoided, channel polling transmission does not need to be switched, and the issuing communication time is saved.
In the aspect of the feedback channel, the multi-station base station comprises three feedback channels, each data transmission station independently has one feedback channel, and the alarm under the jurisdiction of the base station is divided into three sectors, and each sector uses one feedback channel, so that the feedback waiting time is greatly reduced, for example, if the multi-station base station manages 60 alarms, each sector comprises 20 alarms, and the feedback waiting time is reduced by three times.
The three-station parallel communication of the multi-station base station only needs to occupy 6 channels such as F1, F2, F3, F4, F5 and F6, and the management area can be managed to 150 alarms if set to 50 stations.
The data transmission stations in the multi-station base station are not in one-to-one correspondence with the transmission channels, the three data transmission stations can use the transmission channels F1, F2 and F3, and the master controller temporarily specifies which transmission channel each station uses respectively when transmitting. The receiving channel of the data transmission station is dead.
The three-radio parallel communication of the multi-radio base station has the characteristics of high communication efficiency and less occupied channels. If the project implementation conditions allow, a three-station parallel mode is recommended.
Fig. 10 is a schematic diagram of a multi-station base station performing three-station serial communication according to an embodiment of the present invention, which specifically includes:
there are fewer vertices in a city and more siren points in a city, indicating that the wait time is relatively long if all sirens are controlled by a multi-cell base station. Experience obtained by project implementation shows that each multi-station base station is suitable for an alarm within 50 stations, if the multi-station base station is a single-station base station, a plurality of base stations are deployed at one extreme point, and general space conditions at the extreme point of a city are limited, so that sufficient installation space cannot be provided. The three-station base station can be divided into three parts, and the installation position of one multi-station base station serves as three branch controllers.
Three data transmission radio stations in the multi-radio base station need to occupy 12 channels such as F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12 and the like in parallel communication, each data transmission radio station corresponds to three independent channels of each chip area, and one base station is divided into three independent base stations for communication relatively.
The serial communication efficiency of three data transmission radio stations in the multi-radio base station is relatively low, and the occupied channels are many. Under the condition that the project implementation condition allows, the serial mode of three data transmission stations is not recommended, and the mode can be used as a matching mode of project implementation according to local conditions.
In the embodiment of the invention, the on-site running state of three data transmission radio stations in the multi-radio station base station is monitored, when a data transmission radio station room instructs, the current value of each data transmission radio station is obtained, whether the data transmission radio stations normally communicate is determined according to whether the current value is within a set current threshold, if a certain data transmission radio station does not normally communicate, the automatic communication switching function is executed, and warning information is sent out without human intervention.
The master controller and the multiple power station base stations establish a plurality of User Datagram Protocol (UDP) channel connections through microwaves, the three data transfer stations establish independent UDP channel connections respectively, and in addition, a UDP channel for monitoring the states of the data transfer stations is also established and is specially used for receiving the state monitoring information of the data transfer stations, as shown in fig. 11, fig. 11 is a schematic diagram of a process for establishing the UDP channel provided by the embodiment of the present invention.
Fig. 12 is a schematic diagram illustrating a microwave communication process between a master controller and a multi-station base station according to an embodiment of the present invention. As shown in the figure, the master controller is connected with the base station through microwave communication, the microwave communication is an ethernet local area network, which is equivalent to optical fiber private network communication, and is in a full duplex mode, so that distribution and monitoring in communication of a plurality of base stations can be synchronously performed, and meanwhile, the farthest distance of the microwave communication can reach 20 kilometers, and normal communication can be stabilized as long as the wide visible range is available, so that the project implementation cost is greatly reduced.
When microwave communication is damaged or interfered, Beidou short message communication is directly and automatically started, and the Beidou satellite establishes connection between the main controller and the multi-power-station base station, so that the communication efficiency of Beidou is relatively low, the Beidou short message communication can be used as the last guarantee, and normal communication of alarm can be guaranteed to the greatest extent in emergency response. Fig. 13 is a schematic diagram of a Beidou short message communication process between a master controller and a multi-power-station base station according to an embodiment of the present invention.
The multi-station base station of the embodiment of the invention can carry out automatic communication switching, mainly comprises two parts, namely automatic switching of downlink data transmission stations and automatic communication switching of uplink microwave and Beidou short messages, which are respectively explained below.
Automatic switching process of downlink data transmission radio station
When the multi-radio station base station is in a parallel communication mode, when one of three data transmission radio stations is damaged, the other two data transmission radio stations can be in normal parallel communication, a sending channel is not changed, a receiving channel of the first normal data transmission radio station is automatically set to be in polling switching of two channels including the receiving channel of the damaged radio station, and abnormal alarm information of the data transmission radio station is reported. When two radio stations are damaged, three radio stations are directly and automatically switched and act as a radio station 1, and meanwhile, a receiving channel is set to be in polling switching of three channels; when the serial communication mode is adopted, when one radio station is damaged, all alarms administered by the radio station are automatically distributed to other two normal radio stations for control, abnormal alarm information of the radio station is reported, when two radio stations are damaged, all alarms administered by the three radio stations are automatically distributed to the normal radio stations for control, the abnormal alarm information of the radio station is reported, and meanwhile, the receiving channel of the normal radio station is set to be in three-channel polling switching. Fig. 14 and 15 show the whole process, and fig. 14 is a schematic diagram of an automatic switching process in a parallel mode of a downlink data transmission station according to an embodiment of the present invention; fig. 15 is a schematic diagram of an automatic switching process in a serial mode of a downlink data transfer station according to an embodiment of the present invention.
Automatic communication switching process of uplink microwave and Beidou short messages
When no effective data is returned in the microwave communication, the Beidou short message communication is automatically switched to, and meanwhile, the issuing function of a large data volume on the main controller is limited, such as: the whole process of issuing intelligent voice of content in real time (without pre-arranged intelligent voice) is shown in fig. 16, and fig. 16 is a schematic diagram of an automatic communication switching process of uplink microwave and beidou short messages provided by the embodiment of the present invention. Therefore, microwave communication is a common means of uplink communication, Beidou short message communication is a standby means, the multi-station base station can continuously communicate with the base station through microwaves, and once data of the multi-station base station can be received, the multi-station base station automatically switches the uplink communication into the microwave communication.
When the base station is arranged, various problems of civil air defense alarming can be solved through a multi-subband communication technology developed by combining ultrashort wave frequency points with an LTE 4G technology, various communication performance indexes are superior to those of the scheme provided by the implementation of the invention, but the construction cost is high and is usually ten times or even dozens of times of the purchasing construction cost of the technical scheme, the full coverage of an alarming network of a city needs millions or even hundreds of millions of investment, the problem can be solved only by millions or even hundreds of millions of thousands of years, in addition, due to the fact that the number of special frequency points for civil air defense is small, the LET technology needs a large number of frequency point supports, and the practical implementation is not feasible.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A multi-station base station, comprising: at least three data transmission stations and an uplink communication unit, wherein,
the uplink communication unit is used for establishing communication connection with the master controller, receiving control instructions from the master controller through the communication connection, establishing at least three receiving channels with the at least three data transmission stations, and transmitting the control instructions to the at least three data transmission stations through the at least three receiving channels;
and the at least three data transmission stations are used for establishing at least three receiving channels with the uplink communication unit, establishing at least three sending channels with the alarm, and sending the control instructions received by the at least three receiving channels to the alarm in series or in parallel through the at least three sending channels.
2. The multi-station base station of claim 1, wherein the uplink communication unit comprises a microwave receiving end and a Beidou short message receiving end, wherein,
the microwave receiving end is used for carrying out microwave communication connection with the main controller and receiving a control instruction;
and the Beidou short message receiver is used for carrying out communication by adopting the Beidou short message after automatic switching of uplink communication is carried out when the disconnection of the microwave communication connection is detected, and receiving a control instruction.
3. The multi-station base station of claim 1, further comprising a status monitoring unit for monitoring at least three data transfer station operating states:
and for each data transmission radio station, acquiring the current value of the data transmission radio station, determining whether the current value is within a set current threshold range, if so, normally communicating, otherwise, executing automatic switching of the downlink radio station and sending alarm information.
4. The multi-station base station of claim 1, wherein the data transfer station, further configured for automatic switching of downlink stations, comprises:
when the multi-station base station adopts a parallel communication mode, when one of a plurality of data transmission stations is damaged, other data transmission stations are in normal parallel communication, a sending channel is not changed, a receiving channel of a first normal data transmission station is set to be in polling switching of two receiving channels, and abnormal alarm information of the data transmission stations is reported; when two radio stations are damaged, switching the three data transmission radio stations and acting as one data transmission radio station, and setting a receiving channel as three channel polling switching;
when the multi-radio station base station adopts a serial communication mode, when one of a plurality of data transmission radio stations is damaged, the alarms belonging to the data transmission radio station are all controlled by other normal data transmission radio stations, abnormal alarm information of the data transmission radio station is reported, when two alarms belonging to the three data transmission radio stations are distributed to the normal data transmission radio station for control, the abnormal alarm information of the data transmission radio station is reported, and the receiving channel of the normal data transmission radio station is set to be switched in a three-channel cycle mode.
5. A people air defense warning system, comprising: a master controller, a multi-station base station and an alarm, wherein,
the master controller is used for establishing communication connection with the multi-power-station base station and sending a control command through the communication connection;
the multi-station base station is provided with at least three data transmission stations which are used for establishing communication connection with the master controller, the at least three data transmission stations are respectively in communication connection with different alarms, and the control instructions received from the master controller are transmitted to different alarms in parallel or in series through the at least three different data transmission stations;
and the alarm is used for processing and playing the control command after receiving the control command from the multi-station base station.
6. The system of claim 5, wherein the master controller is further configured to establish communication connections with the multiple-station base stations as a microwave communication connection and a Beidou short message communication;
the multi-station base station is still used for establishing communication connection with the master controller and is microwave communication connection and big dipper short message communication, includes: generally, microwave communication is adopted to receive a control instruction, when the disconnection of microwave communication connection is detected, after uplink communication is automatically switched, Beidou short messages are adopted to carry out communication, and the control instruction is received.
7. The system of claim 5, wherein said base station further comprises a condition monitoring function for monitoring the operational condition of at least three data transfer stations:
for each data transmission radio station, acquiring the current value of the data transmission radio station, determining whether the current value is within a set current threshold range, if so, normally communicating, otherwise, executing automatic switching of downlink radio stations and sending alarm information;
the data transmission radio station in the multi-radio station base station is also used for automatic switching of downlink radio stations, and comprises:
when the multi-station base station adopts a parallel communication mode, when one of a plurality of data transmission stations is damaged, other data transmission stations are in normal parallel communication, a sending channel is not changed, a receiving channel of a first normal data transmission station is set to be in polling switching of two receiving channels, and abnormal alarm information of the data transmission stations is reported; when two radio stations are damaged, switching the three data transmission radio stations and acting as one data transmission radio station, and setting a receiving channel as three channel polling switching;
when the multi-radio station base station adopts a serial communication mode, when one of a plurality of data transmission radio stations is damaged, the alarms belonging to the data transmission radio station are all controlled by other normal data transmission radio stations, abnormal alarm information of the data transmission radio station is reported, when two alarms belonging to the three data transmission radio stations are distributed to the normal data transmission radio station for control, the abnormal alarm information of the data transmission radio station is reported, and the receiving channel of the normal data transmission radio station is set to be switched in a three-channel cycle mode.
8. A method of transmitting control commands, comprising:
establishing communication connection between the multi-station base station and the master controller, and receiving a control instruction from the master controller through the communication connection;
the multi-station base station is provided with at least three data transmission stations which are respectively in communication connection with different alarms, and the control instructions received from the master controller are transmitted to different alarms in parallel or in series through the at least three different data transmission stations so that the alarms can be issued after being processed.
9. The method of claim 8, wherein establishing a communication connection between the base multi-station and a master comprises: the method comprises the following steps of (1) microwave communication and Beidou short message communication, wherein communication connection is established by adopting the microwave communication, and a control instruction is received; and when the microwave communication connection is detected to be disconnected, the Beidou short message is adopted for communication, and a control instruction is received.
10. The method of claim 8, wherein transmitting the control commands received from the master controller to different alarms via at least three different data transfer stations further comprises:
monitoring the running states of at least three data transmission radio stations;
when the current value based on the data transmission radio stations is not within the set current value threshold range, judging that some data transmission radio stations are abnormal in communication, and sending alarm information;
the parallel or serial transmission of the control commands received from the master controller to different alarms through at least three different data transmission stations comprises the following steps:
when the multi-station base station adopts a parallel communication mode, when one of a plurality of data transmission stations is damaged, other data transmission stations are in normal parallel communication, a sending channel is not changed, a receiving channel of a first normal data transmission station is set to be in polling switching of two receiving channels, and abnormal alarm information of the data transmission stations is reported; when two radio stations are damaged, switching the three data transmission radio stations and acting as one data transmission radio station, and setting a receiving channel as three channel polling switching;
when the multi-radio station base station adopts a serial communication mode, when one of a plurality of data transmission radio stations is damaged, the alarms belonging to the data transmission radio station are all controlled by other normal data transmission radio stations, abnormal alarm information of the data transmission radio station is reported, when two alarms belonging to the three data transmission radio stations are distributed to the normal data transmission radio station for control, the abnormal alarm information of the data transmission radio station is reported, and the receiving channel of the normal data transmission radio station is set to be switched in a three-channel cycle mode.
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