Design method for controlling interaction of multiple radio stations under short-wave networking

Abstract

The invention discloses a design method for controlling interaction of a plurality of radio stations under short-wave networking, which comprises the following steps of: in a starting stage, acquiring radio station fixed parameters of all network control console sides; sending an application subscription protocol to all radio stations on the network console side; sending all successfully planned short-wave frequency sets to the successfully subscribed radio stations, and pre-tuning the frequency sets by the radio stations; sending other parameter configurations of the radio station to the radio station which is successfully pre-tuned, and sending a setting result after the radio station is successfully set; after a task execution command is sent out, service switching is carried out; selecting a proper transmitting radio station group; a transmitting frequency point of each transmitting point is selected through an ionosphere propagation prediction model frequency selection algorithm, and the frequency and the bandwidth of the current service are modified at the corresponding radio station; state reports of the selected radio station groups are compared, and the same service content information is uniformly sent to the ready radio stations within a certain time; according to the scheme, the wireless transmission efficiency under networking is improved, and the diversity combining effectiveness is improved.

Description

Technical Field

[0001] This invention belongs to the field of shortwave network communication, and particularly relates to a design method for controlling the interaction of multiple radio stations in a shortwave network. Background Technology

[0002] The main reasons for the poor wireless propagation environment in mobile communication are multipath fading and shadow fading. In shortwave communication systems, the advantage of networking lies in the simultaneous transmission of multiple radio transmitters. Multiple receivers simultaneously send multiple received data streams into a diversity combiner, resulting in data quality far superior to that of single-transmit, single-receiver systems. The most crucial prerequisite for improving data reception quality through diversity combiner is controlling the simultaneous transmission of multiple transmitters. Because current radio transmission and reception mechanisms operate in half-duplex mode and reuse multiple frequencies, appropriate states and timings are needed to effectively schedule transmitters for multiple receiver addresses and various service switching scenarios. During a single service transmission, idle radio groups need to be selected for frequency and bandwidth modification. Service data can only be transmitted simultaneously after all transmitters have successfully completed the frequency and bandwidth modification or after all responses have timed out. In data link polling services, a complete poll sends data link data to the transmitter. The receiver needs to respond promptly upon receiving this data; therefore, switching to other services only occurs after receiving a polling response from the receiver or after a timeout. This paper proposes a method for controlling the interaction of multiple radio stations in a shortwave network based on state processing and response. In a shortwave network system, it can effectively schedule existing transceiver radios, thereby improving transmission efficiency and the quality of received service data. Summary of the Invention

[0003] Purpose of the invention: The purpose of this invention is to provide a design method for controlling the interaction of multiple radio stations in a shortwave network, which can effectively schedule transceiver stations in a shortwave network system, thereby improving transmission efficiency and the quality of received service data.

[0004] Technical solution: The present invention provides a design method for controlling the interaction of multiple radio stations in a shortwave network, comprising:

[0005] Before executing the task, the network control console should complete the following preparations:

[0006] (1) Obtain the fixed parameters of all radios on the network control station side;

[0007] (2) Send subscription application agreements to all radio stations on the network control station side;

[0008] (3) Upon receiving the heartbeat of the radio station, it is considered that the subscription to the radio station has been successful. The radio station sends the set of all shortwave frequencies that have been successfully planned to the successfully subscribed radio station, and the radio station pre-tunes the set of frequencies.

[0009] (4) Send other parameter configurations of the radio station to the radio station that has been successfully pre-tuned, and send the setting result after the radio station is successfully set;

[0010] After issuing the task execution command, the network control console completes the scheduling task as follows:

[0011] (5) Perform business switching;

[0012] (6) Comprehensively evaluate real-time link quality, radio node location, historical service success value, service priority and equipment status, and select a suitable group of transmitting radio stations;

[0013] (7) Select the transmission frequency point of each transmitting station using the frequency selection algorithm of the ionospheric propagation prediction model, and modify the frequency and bandwidth of the corresponding station for the current service;

[0014] (8) Compare the status reports of the selected radio groups and send the same service content information to the ready radios within the specified time.

[0015] (9) If no response is received from the receiving radio station after the timeout, the transmitting radio group and transmitting radio point are reselected to retransmit the data link service.

[0016] Furthermore, the parameters obtained in step (1) include the communication IP address, the latitude and longitude of the radio station, the serial numbers of the transmitting and receiving devices, and the antenna parameters.

[0017] Furthermore, the pre-tuning increases the frequency switching rate during radio use, and the radio sends the tuning result after successful pre-tuning.

[0018] Furthermore, the method also includes: after issuing the task execution command, the network control console sorts the priorities of all sent services.

[0019] Furthermore, in the service switching process, a retransmission mechanism is set up. After receiving the data, the receiver needs to send a response with a sequence number. A complete data link service ends when the sender receives the response from the other party.

[0020] Further, step (8) specifically involves: if all frequency change success status information is received within the specified time, then all radio stations are ready to transmit; if any radio station in the radio cluster fails to reach the transmitting state after the specified time, the network control station sends the service content to all radio clusters and waits for the transmitters of the radio clusters to become idle after sending.

[0021] Furthermore, the radio station periodically sends heartbeats and reports changes in the status of transmitted and received information, which the network control station uses for selection.

[0022] Furthermore, the service switching state is switched upon receiving an acknowledgment response. After important service data is sent, the other party needs to receive it and send an acknowledgment. The receiving party is in half-duplex mode and cannot allow service switching while waiting for the acknowledgment. The state is switched upon receiving the acknowledgment response.

[0023] A computer device includes one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, wherein when the programs are executed by the processors, they implement the steps of a design method for controlling the interaction of multiple radio stations in a shortwave network.

[0024] A computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of a design method for controlling the interaction of multiple radio stations in a shortwave network.

[0025] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages:

[0026] (1) Before a service occurs, the network control console prepares a frequency set and sends it to the power supply station for pre-tuning. In the case of a poor link environment at the current frequency point, the interaction frequency can be quickly switched to reduce the service loss rate.

[0027] (2) When the network control station needs to send service data to multiple destination stations simultaneously, the transmission station resources for each service data path should be allocated reasonably. Sending data through multiple paths is to allow the receiver to divide the data and improve the accuracy of data reception under poor link conditions; reasonable allocation of transmission station resources can improve the processing capacity of the traffic volume at the same time.

[0028] (3) Controlling multiple radio stations to transmit data simultaneously is a key factor in improving the success rate of receiver settling. Attached Figure Description

[0029] Figure 1 This is a structural diagram of the shortwave networking system of the present invention.

[0030] Figure 2 This is a flowchart of the shortwave networking single-transmission data link service process of the present invention. Detailed Implementation

[0031] The technical solution of the present invention will be further described below with reference to the accompanying drawings.

[0032] The network control station and the radios are directly connected via a wired connection, using a UDP-based application layer protocol for communication. Multiple transceiver radios in the network are controlled by the network control station, and communication between the radios is shortwave wireless communication. The relationship between the network control station and the radios is one-to-many. The shortwave network system composition is as follows: Figure 1 As shown.

[0033] This invention provides a design method for controlling the interaction of multiple radio stations in a shortwave network, including:

[0034] Before executing the task, the network control console should complete the following preparations:

[0035] (1) Obtain the fixed parameters of all radios on the network control station side;

[0036] (2) Send subscription application agreements to all radio stations on the network control station side;

[0037] (3) Upon receiving the heartbeat of the radio station, it is considered that the subscription to the radio station has been successful. The radio station sends the set of all shortwave frequencies that have been successfully planned to the successfully subscribed radio station, and the radio station pre-tunes the set of frequencies.

[0038] (4) Send other parameter configurations of the radio station to the radio station that has been successfully pre-tuned, and send the setting result after the radio station is successfully set;

[0039] After issuing the task execution command, the network control console completes the scheduling task as follows:

[0040] (5) Perform business switching;

[0041] (6) Comprehensively evaluate real-time link quality, radio node location, historical service success value, service priority and equipment status, and select a suitable group of transmitting radio stations;

[0042] (7) Select the transmission frequency point of each transmitting station using the frequency selection algorithm of the ionospheric propagation prediction model, and modify the frequency and bandwidth of the corresponding station for the current service;

[0043] (8) Compare the status reports of the selected radio groups and send the same service content information to the ready radios within the specified time.

[0044] (9) If no response is received from the receiving radio station after the timeout, the transmitting radio group and transmitting radio point are reselected to retransmit the data link service.

[0045] Specifically, in the initial phase, before executing the task, the network control station reads all deployed device information from the database. The radio devices on the network control station side are designated A1, A2, A3…, and the network control station obtains all IP addresses, communication ports, transmitter and receiver numbers, deployment locations, antenna parameters, etc., of these devices. The radio devices on the non-network control station side are designated B1, B2, B3…, and the database stores the device numbers and initial latitude and longitude. If B1's physical location in actual use is closer to A1, A2, A3, A4, and B2's physical location is closer to A2, A3, A4, A5, and the operator wants to send service data to B1 and B2 sequentially, the transmitter tuning time is generally between two and three seconds. Without pre-tuning, after data is sent to B1 via A1, A2, A3, A4, it either needs to wait for the tuning time of A2, A3, A4, which can lead to delays or even loss of important data; or only A5 is available for transmission to B2. Therefore, after each radio station is initially subscribed to, all available communication frequencies need to be sent to the radio station on the network control station side. Receiving the heartbeat of the radio station indicates that the subscription to the radio station is successful. After the radio station receives all the frequencies, it performs pre-tuning, which can reduce the tuning time when switching target radio stations.

[0046] If the operator issues a service message command to B1, the network control station prioritizes all services sent to B1 according to their priority. For example, voice has a higher priority than data link, and different message types within the data link also have different priorities. Because all radios are half-duplex and cannot transmit and receive simultaneously, switching service types requires a suitable timing. To prevent the loss of important service data during transmission, a retransmission mechanism is set up for important services. That is, after receiving the data, the receiver needs to send a response with the corresponding sequence number. A complete data link service should end when the sender receives the response from the other party. When the operator needs to start a voice service, it needs to wait until the previous data link has received a response. At this time, the control console sends a voice prompt to the operator, thereby realizing the service switch.

[0047] The advantage of networking lies in diversity merging. Diversity involves receiving signals carrying the same signal on several branches with low correlation. By appropriately processing these signals from different branches, the probability of fading at the receiving terminal can be significantly reduced. During merging, if the transmission intervals of the senders differ too much, using late-arriving data will result in significant data delays; conversely, not using late-arriving data is equivalent to single-device transmission, and multipath fading and shadow fading will have a more pronounced impact on the received signal. Therefore, simultaneous data transmission is a prerequisite for improving data quality in networking.

[0048] The operators sequentially send service data to B1 and B2. When sending data to B1, radios A1, A2, A3, and A4 need to have their frequencies and bandwidths changed simultaneously. Each radio starts in a different state, and the time required for frequency and bandwidth changes varies. The network control station initiates a waiting state when simultaneously sending frequency and bandwidth change information to all radios. If all frequency changes are successfully completed within the specified time, the radios are considered ready to transmit. If some radios in the cluster fail to reach the transmitting state after the specified time, the network control station sends the service content to the entire cluster and waits for the transmitters to become idle. Then, the steps for sending data to B2 are repeated for B1, with the difference being that they are different radio transmission clusters. Simultaneously, the data transmission link service has a retransmission mechanism; if no response is received from the receiver within a timeout period, important data needs to be retransmitted.

Claims

1. A design method for controlling the interaction of multiple radio stations in a shortwave network, characterized in that, include: Before executing the task, the network control console should complete the following preparations: (1) Obtain the fixed parameters of all radios on the network control station side; (2) Send subscription application agreements to all radio stations on the network control station side; (3) Upon receiving the heartbeat of the radio station, it is considered that the subscription to the radio station has been successful. The radio station sends the set of all shortwave frequencies that have been successfully planned to the successfully subscribed radio station, and the radio station pre-tunes the set of frequencies. (4) Send other parameter configurations of the radio station to the radio station that has been successfully pre-tuned, and send the setting result after the radio station is successfully set; After issuing the task execution command, the network control console completes the scheduling task as follows: (5) Perform business switching; (6) Comprehensively evaluate real-time link quality, radio node location, historical service success value, service priority and equipment status, and select a suitable group of transmitting radio stations; (7) Select the transmission frequency point of each transmitting station using the frequency selection algorithm of the ionospheric propagation prediction model, and modify the frequency and bandwidth of the corresponding station for the current service; (8) Compare the status reports of the selected radio groups and send the same service content information to the ready radios within the specified time. (9) If no response is received from the receiving radio station after the timeout, the transmitting radio group and transmitting radio point are reselected to retransmit the data link service.

2. The design method for controlling the interaction of multiple radio stations in a shortwave network according to claim 1, characterized in that, The parameters obtained in step (1) include the communication IP address, the latitude and longitude of the radio station, the serial numbers of the transmitting and receiving devices, and the antenna parameters.

3. The design method for controlling the interaction of multiple radio stations in a shortwave network according to claim 1, characterized in that, The pre-tuning increases the frequency switching rate during radio use, and the radio sends the tuning result after successful pre-tuning.

4. The design method for controlling the interaction of multiple radio stations in a shortwave network according to claim 1, characterized in that, The method further includes: after issuing the task execution command, the network control console sorts the priorities of all sent services.

5. The design method for controlling the interaction of multiple radio stations in a shortwave network according to claim 1, characterized in that, During service switching, a retransmission mechanism is set up. After receiving the data, the receiver needs to send a response with a sequence number. A complete data link service ends when the sender receives the response from the other party.

6. The design method for controlling the interaction of multiple radio stations in a shortwave network according to claim 1, characterized in that, The specific steps (8) are as follows: if all frequency change success status information is received within the specified time, then all radio stations are ready to transmit. If a radio station in the radio cluster fails to reach the transmitting state after the specified time, the network control station sends the service content to all radio stations and waits for the transmitters of the radio cluster to reach the idle state after sending.

7. The design method for controlling the interaction of multiple radio stations in a shortwave network according to claim 1, characterized in that, The radio station periodically sends heartbeats and reports changes in its transmission and reception status, which the network control station uses to make selections.

8. The design method for controlling the interaction of multiple radio stations in a shortwave network according to claim 1, characterized in that, The service switching state is switched upon receiving a receipt response. After important service data is sent, the other party needs to receive it and send a receipt. The receiving party is in half-duplex mode and service switching is not allowed while waiting for the receipt. The state is switched when the receipt response is received.

9. A computer device, characterized in that, It includes one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, and the programs, when executed by the processors, implement the steps of a design method for controlling the interaction of multiple radio stations in a shortwave network as described in any one of claims 1-8.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of a design method for controlling the interaction of multiple radio stations in a shortwave network as described in any one of claims 1-8.

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