CN113259864A - Narrow-band communication method, interphone, equipment, storage medium and ad hoc network system - Google Patents
Narrow-band communication method, interphone, equipment, storage medium and ad hoc network system Download PDFInfo
- Publication number
- CN113259864A CN113259864A CN202110725274.7A CN202110725274A CN113259864A CN 113259864 A CN113259864 A CN 113259864A CN 202110725274 A CN202110725274 A CN 202110725274A CN 113259864 A CN113259864 A CN 113259864A
- Authority
- CN
- China
- Prior art keywords
- interphone
- type
- message
- reverse signaling
- intercom
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 61
- 230000006854 communication Effects 0.000 title claims abstract description 49
- 238000004891 communication Methods 0.000 title claims abstract description 48
- 230000011664 signaling Effects 0.000 claims abstract description 175
- 230000005540 biological transmission Effects 0.000 claims abstract description 49
- 238000012545 processing Methods 0.000 claims description 23
- 238000012790 confirmation Methods 0.000 claims description 14
- 238000004590 computer program Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 101000741965 Homo sapiens Inactive tyrosine-protein kinase PRAG1 Proteins 0.000 description 5
- 102100038659 Inactive tyrosine-protein kinase PRAG1 Human genes 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000006855 networking Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 235000008694 Humulus lupulus Nutrition 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/12—Messaging; Mailboxes; Announcements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The application relates to a narrow-band communication method, an interphone, equipment, a storage medium and an ad hoc network system, wherein the method is suitable for a second interphone, and comprises the following steps: acquiring a reverse signaling sent by a first interphone; reading a message type flag bit from the reverse signaling; when the message type flag bit indicates that the type of the transmission message is a broadcast type, reading a source address flag bit and a hop count flag bit from the reverse signaling, and updating source address corresponding to the source address flag bit and hop count information corresponding to the hop count flag bit into a local routing table; and when the message type flag bit indicates that the type of the transmission message is a request forwarding type, responding to the reverse signaling according to the current working state of the second interphone. The method and the device are used for solving the problem that the current frame structure cannot well meet the requirement of various message transmission of the wireless ad hoc network.
Description
Technical Field
The present application relates to the field of wireless communication technologies, and in particular, to a narrowband communication method, an intercom, a device, a storage medium, and an ad hoc network system.
Background
The interphone is widely applied to the situations of emergency scheduling and collective cooperation work, and can realize communication in a group range. The traditional interphone for narrow-band communication has limited communication distance under a direct mode, generally less than 5 kilometers, and if the communication distance needs to be extended, infrastructures such as a transfer platform and a base station need to be relied on, but the devices are not convenient to move, and once the position is set, the devices are difficult to change. In the practical use process of the interphone, the position of the interphone can change along with the change of the position of a user, under different time conditions, the required positions of basic facilities such as the relay station, the base station and the like are not fixed actually, and the characteristics of the basic equipment such as the relay station, the base station and the like and the application characteristics of the interphone are contradicted. Wireless ad hoc networks have been in force.
The wireless ad hoc network is convenient and simple to deploy, the communication distance can be effectively prolonged by utilizing the multi-node topology, and the contradiction can be solved without the infrastructure such as a transfer platform, a base station and the like.
Disclosure of Invention
The inventor finds that the interphone ad hoc network can be networked in a direct mode, but in the related technology, in the direct mode, according to the current frame structure, various message transmission of the wireless ad hoc network cannot be well met.
The application provides a narrow-band communication method, an interphone, equipment, a storage medium and an ad hoc network system, which are used for solving the problem that the existing frame structure cannot well meet the requirement of various message transmission of a wireless ad hoc network.
In a first aspect, an embodiment of the present application provides a narrowband communication method, which is applicable to a first intercom; the method comprises the following steps:
acquiring a trigger condition for sending a reverse signaling;
determining the type of the message to be transmitted based on the trigger condition;
when the type of the message to be transmitted is a broadcast type, respectively filling a broadcast type mark, the address of the first interphone and the hop count information into a message type zone bit, a source address zone bit and a hop count zone bit of a specified data frame to generate a reverse signaling for updating a routing table; the hop count information is used for indicating the hop count of arriving at a specified node;
when the type of the message to be transmitted is a request forwarding type, respectively filling a request forwarding type mark, the address of the first interphone and the address of the second interphone into a message type zone bit, a source address zone bit and a destination address zone bit of the specified data frame, and generating a reverse signaling for requesting transmission; the address of the second interphone is determined according to the local routing table of the first interphone;
and sending the reverse signaling to a second interphone.
Optionally, the determining the type of the message to be transmitted based on the trigger condition includes: and when the triggering condition is that a reverse signaling of a broadcast type is received or a broadcast instruction input by a user is received, determining that the type of the message to be transmitted is the broadcast type.
Optionally, the determining the type of the message to be transmitted based on the trigger condition includes: and when the triggering condition is that a reverse signaling of a request forwarding type and corresponding service data are received or a request forwarding instruction input by a user is received, determining that the type of the message to be transmitted is the request forwarding type.
Optionally, when the type of the message to be transmitted is a request forwarding type, after the sending the reverse signaling to the second intercom, the method further includes:
when receiving the confirmation information of the second interphone, sending the service data corresponding to the reverse signaling to the second interphone;
or when the rejection information of the second interphone is received, determining another interphone from the local routing table of the first interphone, and sending the reverse signaling to the other second interphone.
In a second aspect, an embodiment of the present application provides a narrowband communication method, which is applicable to a second intercom, and the method includes:
acquiring a reverse signaling sent by a first interphone;
reading a message type flag bit from the reverse signaling;
when the message type flag bit indicates that the type of the transmission message is a broadcast type, reading a source address flag bit and a hop count flag bit from the reverse signaling, and updating source address corresponding to the source address flag bit and hop count information corresponding to the hop count flag bit into a local routing table;
and when the message type flag bit indicates that the type of the transmission message is a request forwarding type, responding to the reverse signaling according to the current working state of the second interphone.
Optionally, when the message type flag bit indicates that the type of the transmission message is a broadcast type, the method further includes: and acquiring the signal intensity when the reverse signaling is received, and correspondingly updating the signal intensity into the local routing table.
Optionally, the responding the reverse signaling according to the current working state of the second intercom includes:
if the second interphone is judged to be idle currently, sending confirmation information to the first interphone, and acquiring service data corresponding to the reverse signaling sent by the first interphone;
and if the second interphone is judged to be busy currently, sending rejection information to the first interphone so that the first interphone determines another second interphone from a local routing table and sends the reverse signaling to the other second interphone.
Optionally, after the obtaining of the service data corresponding to the reverse signaling sent by the first interphone, the method further includes:
and if the second interphone is not the master control node, generating a reverse signaling of the second interphone, and sending the reverse signaling to a next-hop interphone, wherein a message type flag bit in the reverse signaling of the second interphone is a request forwarding type, a source address flag bit is an address of the second interphone, and a destination address flag bit is the next-hop interphone, wherein the next-hop interphone is determined based on a local routing table of the second interphone.
In a third aspect, an embodiment of the present application provides a first intercom, including:
the trigger module is used for acquiring a trigger condition for sending a reverse signaling;
the processing module is used for determining the type of the message to be transmitted based on the trigger condition; when the type of the message to be transmitted is a broadcast type, respectively filling a broadcast type mark, the address of the first interphone and the hop count information into a message type zone bit, a source address zone bit and a hop count zone bit of a specified data frame to generate a reverse signaling for updating a routing table; the hop count information is used for indicating the hop count of arriving at a specified node; when the type of the message to be transmitted is a request forwarding type, respectively filling a request forwarding type mark, the address of the first interphone and the address of the second interphone into a message type zone bit, a source address zone bit and a destination address zone bit of the specified data frame, and generating a reverse signaling for requesting transmission; the address of the second interphone is determined according to the local routing table of the first interphone;
and the radio frequency transceiving module is used for sending the reverse signaling to the second interphone.
Optionally, the processing module is configured to determine that the type of the message to be transmitted is a broadcast type when the trigger condition is that a reverse signaling of the broadcast type is received or a broadcast instruction input by a user is received.
Optionally, the processing module is configured to determine that the type of the message to be transmitted is a request forwarding type when the triggering condition is that a reverse signaling of the request forwarding type and corresponding service data are received, or a request forwarding instruction input by a user is received.
Optionally, the radio frequency transceiver module is further configured to send, after sending the reverse signaling to a second intercom when the type of the message to be transmitted is a request forwarding type, and when receiving the confirmation information of the second intercom, service data corresponding to the reverse signaling to the second intercom;
or when the rejection information of the second interphone is received, determining another interphone from the local routing table of the first interphone, and sending the reverse signaling to the other second interphone.
In a fourth aspect, an embodiment of the present application provides a second intercom, including:
the radio frequency transceiving module is used for acquiring a reverse signaling sent by the first interphone;
the processing module is used for reading a message type flag bit from the reverse signaling; when the message type flag bit indicates that the type of the transmission message is a broadcast type, reading a source address flag bit and a hop count flag bit from the reverse signaling, and updating source address corresponding to the source address flag bit and hop count information corresponding to the hop count flag bit into a local routing table; and when the message type flag bit indicates that the type of the transmission message is a request forwarding type, responding to the reverse signaling according to the current working state of the second interphone.
Optionally, the processing module is further configured to, when the message type flag indicates that the type of the transmission message is a broadcast type, obtain a signal strength when receiving the reverse signaling, and update the signal strength correspondingly to the local routing table.
Optionally, the processing module is configured to send acknowledgement information to the first intercom if it is determined that the second intercom is currently idle, and obtain service data corresponding to the reverse signaling sent by the first intercom; and if the second interphone is judged to be busy currently, sending rejection information to the first interphone so that the first interphone determines another second interphone from a local routing table and sends the reverse signaling to the other second interphone.
Optionally, the processing module is configured to, after obtaining service data corresponding to the reverse signaling sent by the first intercom, generate a reverse signaling of the second intercom if the second intercom is not a master control node, and send the reverse signaling to a next-hop intercom, where a message type flag bit in the reverse signaling of the second intercom is a request forwarding type, a source address flag bit is an address of the second intercom, and a destination address flag bit is the next-hop intercom, where the next-hop intercom is determined based on a local routing table of the second intercom.
In a fifth aspect, an embodiment of the present application provides a narrowband wireless ad hoc network system, including: the first intercom device of the third aspect and the second intercom device of the fourth aspect.
In a sixth aspect, an embodiment of the present application provides an electronic device, including: the system comprises a processor, a memory and a communication bus, wherein the processor and the memory are communicated with each other through the communication bus;
the memory for storing a computer program;
the processor is configured to execute the program stored in the memory to implement the narrowband communication method according to the first aspect or the second aspect.
In a seventh aspect, this application provides a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the narrowband communication method in the first aspect or the second aspect is implemented.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages: according to the method provided by the embodiment of the application, the appointed data frame comprises the message type zone bit, the hop count zone bit, the source address zone bit and the destination address identification bit, different data are correspondingly acquired according to different types of messages to be transmitted and are filled into different zone bits of the appointed data frame, different reverse signaling is generated, different service functions are realized through the same frame structure, the diversity of message transmission is enriched, meanwhile, the reverse signaling is used as a signaling frame for distinguishing different types of messages, and the channel utilization rate of the intercom device can be effectively improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic diagram of a narrowband wireless ad hoc network system provided in an embodiment of the present application;
fig. 2 is a flowchart of a narrowband communication method for a first intercom provided in an embodiment of the present application;
fig. 3 is a flowchart of a narrowband communication method for a second intercom provided in an embodiment of the present application;
fig. 4 is a schematic structural diagram of an intercom provided in the embodiment of the present application;
fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In order to solve the problem that the current frame structure cannot well satisfy various message transmission of a wireless ad hoc network in the prior art, in a first aspect, an embodiment of the present application provides a narrowband communication method, which is applicable to a narrowband wireless communication ad hoc network system as shown in fig. 1, where the system includes a plurality of interphones, an ad hoc network is established among the interphones, and two directly-connected intercom devices are set as a first intercom and a second intercom; the first interphone is used as a sending node, and the second interphone is used as a forwarding node or a receiving node.
As shown in fig. 2, the present embodiment provides a narrowband communication method, which is suitable for a first intercom; the method comprises the following steps:
wherein, the designated node may contract in advance, for example: the master interphone serving as the master control node in the narrowband wireless communication ad hoc network system serves as a designated node, such as the interphone a in fig. 1, and the master interphone serving as the master control node can be determined during frequency writing.
When the type of the message to be transmitted is a request forwarding type, respectively filling a request forwarding type mark, the address of the first interphone and the address of the second interphone into a message type zone bit, a source address zone bit and a destination address zone bit of the specified data frame, and generating a reverse signaling for requesting transmission; the address of the second interphone is determined according to the local routing table of the first interphone;
and step 204, sending the reverse signaling to a second interphone.
And when the triggering condition is that a reverse signaling of a broadcast type is received or a broadcast instruction input by a user is received, determining that the type of the message to be transmitted is the broadcast type. For the broadcast type transmission message, after the first interphone sends out, all interphones within the preset distance range of the first interphone can receive the broadcast type transmission message.
And when the triggering condition is that a reverse signaling of a request forwarding type and corresponding service data are received or a request forwarding instruction input by a user is received, determining that the type of the message to be transmitted is the request forwarding type. For the transmission message of the request forwarding type, because the address of the second intercom is explicitly carried in the transmission message of the request forwarding type as the destination address of the communication, only the intercom corresponding to the destination address acquires the content in the message. It can be understood that the reverse signaling in the present scheme is a reverse burst. More specifically, the reverse signaling is a reverse burst in the pass-through mode, and has a length of 30 ms.
In this embodiment of the present application, when the type of the message to be transmitted is a request forwarding type, after the sending the reverse signaling to the second intercom, the method further includes:
when receiving the confirmation information of the second interphone, sending the service data corresponding to the reverse signaling to the second interphone; and when the confirmation information is received, the second interphone is idle and can receive the service data.
Or when the rejection information of the second interphone is received, determining another interphone from the local routing table of the first interphone, and sending the reverse signaling to the other second interphone. And when the rejection information is received, the second interphone is busy and cannot receive the service data, and the first interphone is indicated to seek other interphones to forward data from the local routing table.
And when the first interphone receives the rejection information NACK sent by the second interphone, the first interphone gives up sending the service data, and the priority of the second interphone is reduced in the local routing table of the first interphone.
According to the method provided by the embodiment of the application, the appointed data frame comprises the message type zone bit, the hop count zone bit, the source address zone bit and the destination address identification bit, different data are correspondingly acquired according to different types of messages to be transmitted and are filled into different zone bits of the appointed data frame, different reverse signaling is generated, different service functions are realized through the same frame structure, the diversity of message transmission is enriched, meanwhile, the reverse signaling is used as a signaling frame for distinguishing different types of messages, and the channel utilization rate of the intercom device can be effectively improved.
In a specific implementation, the transmission message in the embodiment of the application is transmitted by using a reverse channel burst, the bytes of the reverse signaling in the DMR/PDT standard in the existing protocol are redefined, and an EMB domain and an RC domain of the reverse signaling in the DMR/PDT standard are used, wherein a type flag bit of the transmission message is in the EMB domain, and a hop count flag bit, a source address flag bit and a destination address flag bit are in the RC domain. The type of the transmission message occupies the first three bits of an embedded signaling field (EMB) in the reverse signaling, as shown in table 1, table 1 shows an example of the definition of each byte of the reverse signaling:
table 1 reverse signaling byte definitions
The replied acknowledgement information ACK may be sent through reverse signaling, and the occupied bit is consistent with the message type flag bit, as shown in table 1, and 110 is used to indicate that the acknowledgement information ACK is replied. The reject message NACK may also be sent through a reverse signaling, and the occupied bit is consistent with the message type flag bit, as shown in table 1, 111 is used to indicate that an acknowledgement message ACK is replied, so as to inform that the first intercom is currently busy and cannot receive the service data, so as to seek for forwarding data by other intercom.
In a specific implementation, the slot 1 of two slots of a 60ms frame in the direct mode of the existing narrowband communication protocol can be utilized to transmit service data (for example, position information, voice information, video information, etc.), and the slot 2 is used to transmit reverse signaling; the reverse signaling and the service data are divided into different time slots, and compared with the existing communication protocol, the utilization rate of channel resources can be improved. In order to save the number of significant BITs and enable transmission in the reverse channel, the source and destination addresses are temporarily set to 8BIT in specific implementations, and a small network of 256 users is supported.
The redefined reverse signaling may be applied to a variety of different communication scenarios, such as: scenario for intercom to transmit broadcast data (also called heartbeat wave): the broadcast data is mainly used for realizing the establishment of the ad hoc network, the route updating and the like.
During specific implementation, a write frequency parameter is set in each interphone needing to be grouped in advance, and the write frequency parameter comprises: source address, role, operating frequency, etc., as in table 2:
TABLE 2 write frequency parameters
In specific implementation, it is required to determine that one of the plurality of interphones is a master control node, for example, the interphone a in fig. 1, and the other interphones are participating nodes, for example, the interphones B to F in fig. 1, and after writing the write-frequency parameters into each of the interphones, the power supplies of the interphones a to F are started, and the ad hoc network mode is started. Each intercom transmits broadcast data in turn, for example: the interphones A-F take T as the cycle transmission broadcast data (heartbeat wave) in proper order, wherein, broadcast data includes: local address, several hops to a designated interphone (e.g. predefined master node). After a certain interphone sends broadcast data, other interphones in the coverage area of the interphone receive the broadcast data of the interphone, identification information of other interphones and a certain interphone (such as a preset main control node) is obtained from a reverse signaling, the other interphones jump to the certain interphone (such as the preset main control node) (the information is recorded as jump number information), the signal strength RSSI of the reverse signaling is calculated, and the obtained information is recorded in a local routing table. And each interphone sequentially transmits broadcast data to establish a local routing table of each interphone.
Combining the byte definitions in table 1, when an ad hoc network needs to be established or a local routing table needs to be updated, 000 message type flag bits can be carried in the generated reverse signaling, and when other interphones receive the reverse signaling and analyze that the message type flag bits are 000, it is determined that the reverse signaling is used for establishing the ad hoc network or updating the local routing table, and service data does not need to be sent. When broadcasting data, the destination address is set to 0 xff. After each interphone finishes transmitting broadcast data (also called broadcast token) in sequence, the establishment of a topological structure and a routing table is finished, and as for the narrow-band wireless ad hoc network system shown in fig. 1, the direct connection and multi-hop of the narrow-band communication system can be realized through self-adaption, self-expansion and self-networking without depending on basic facilities such as a relay station, a base station and the like, and the communication distance is expanded. It is obvious to those skilled in the art that the above method is a networking method of the narrowband wireless communication ad hoc network system in the embodiment of the present invention, that is, a method for implementing ad hoc networking by a first intercom and a second intercom.
Because the relative positions of the interphones are changed in the using process of the interphones, B-F can reach A through 0 jump when B-F are all in the coverage range of A, the relative positions of A-F can be as shown in figure 1 in the moving process, and each interphone dynamically updates the routing table after receiving the broadcast data of other interphones.
After each interphone establishes the local routing table, an ad hoc network can be established based on the local routing table, and when a certain interphone sends service data to another interphone which is not in the coverage area of the interphone, for example: the intercom F sends the traffic data to the intercom a, for example: the interphone F searches a local routing table according to the position information, determines that the interphone with the strongest signal strength in the minimum hop count information value in the routing table is used as a receiving interphone (assumed to be the interphone E), sends a request forwarding type reverse signaling to the interphone E in the time slot 2, returns confirmation information to the interphone F when the interphone E is idle, and sends the position information to the interphone E in the time slot 1 after the interphone F receives the confirmation information; if the interphone E judges that the interphone E is not the second interphone or the main control node, a local routing table is searched by adopting the same method as the interphone F to generate a reverse signaling, the newly generated reverse signaling is sent to the interphone (assumed to be the interphone D) with the strongest middle signal with the minimum hop information value in the local routing table, when the interphone D is idle, the interphone D returns confirmation information to the interphone E, and after receiving the confirmation information, the interphone D sends position information to the interphone D in a time slot 1; and circulating the steps, and guiding the position information to be transmitted to the interphone A to be finished.
In a second aspect, as shown in fig. 3, an embodiment of the present application provides a narrowband communication method, which is suitable for a second intercom; the method comprises the following steps:
The method provided by the embodiment of the application reads the message type zone bit from the reverse signaling, and performs different processing according to different types of the messages to be transmitted.
In addition, when the message type flag bit indicates that the type of the transmission message is a broadcast type, the method further includes: and acquiring the signal strength when the reverse signaling is received, and correspondingly updating the signal strength into the local routing table, wherein as shown in table 2, table 2 shows the routing table of the intercom device a.
In addition, the redefined reverse signaling can be applied to a communication scene of sending a message of a request forwarding type, and when sending, a request forwarding type mark, the address of the first interphone and the address of the second interphone are respectively filled into a message type flag bit, a source address flag bit and a destination address flag bit of the specified data frame, so as to generate the reverse signaling for requesting transmission.
Table 2 routing table for intercom a
In a specific embodiment, when the second intercom determines that the type of the message type flag bit indicates that the type of the transmission message is the request forwarding type, responding to the reverse signaling according to the current working state of the second intercom includes:
if the second interphone is judged to be idle currently, sending confirmation information to the first interphone, and acquiring service data corresponding to the reverse signaling sent by the first interphone;
and if the second interphone is judged to be busy currently, sending rejection information to the first interphone so that the first interphone determines another second interphone from a local routing table and sends the reverse signaling to the other second interphone.
The acknowledgement ACK may be sent through reverse signaling, and the occupied bit is consistent with the message type flag bit, as shown in table 1, 110 is used to indicate that the acknowledgement ACK is replied. The rejection information NACK may also be sent through a reverse signaling, and the occupied bit is consistent with the message type flag bit, as shown in table 1, 111 is used to indicate that the rejection information NACK is replied, so as to inform the interphone of the sending node that the second interphone is currently busy and cannot receive the service data, so as to seek other interphones to forward the data.
In the actual forwarding process, when the second interphone is in an idle state, but the second interphone determines that the message can be forwarded only through the first interphone by searching a local routing table of the second interphone, at this time, a dead loop is formed, the reject message NACK is replied, and the related information of the first interphone is deleted in the local routing table of the second interphone.
In a specific embodiment, after the obtaining the service data corresponding to the reverse signaling sent by the first intercom, the method further includes:
and if the second interphone is not the master control node, generating a reverse signaling of the second interphone, and sending the reverse signaling to a next-hop interphone, wherein a message type flag bit in the reverse signaling of the second interphone is a request forwarding type, a source address flag bit is an address of the second interphone, and a destination address flag bit is the next-hop interphone, wherein the next-hop interphone is determined based on a local routing table of the second interphone.
The specific implementation manner and technical effect of the embodiment of the present invention are consistent with the implementation manner and technical effect of the receiving end in the embodiment provided in the first aspect, and are not described herein again.
In the narrow-band wireless ad hoc network system provided by the application, all common nodes (for example, interphones B-F in FIG. 1) report service data to the master control node. In addition, in the above-mentioned narrowband ad hoc network system, each intercom may be an intercom device of the transmitting node, an intercom device of the forwarding node, or an intercom device of the receiving node.
In addition, it should be further noted that, in the embodiment of the present application, each intercom may periodically transmit broadcast data, so that other intercom perceives it to update the routing table. For ad hoc networks currently used in other fields, updating the routing table is usually done before sending data. Compared with the prior art, the routing updating opportunity provided by the application can meet the requirement of timeliness of data sending.
In a third aspect, based on the same concept, an embodiment of the present application provides a first intercom, and the specific implementation of the first intercom may refer to the description of the method embodiment, and repeated details are not repeated, as shown in fig. 4, the first intercom mainly includes:
a triggering module 401, configured to obtain a triggering condition for sending a reverse signaling;
a processing module 402, configured to determine, based on the trigger condition, a type of a message to be transmitted; when the type of the message to be transmitted is a broadcast type, respectively filling a broadcast type mark, the address of the first interphone and the hop count information into a message type zone bit, a source address zone bit and a hop count zone bit of a specified data frame to generate a reverse signaling for updating a routing table; the hop count information is used for indicating the hop count of arriving at a specified node; when the type of the message to be transmitted is a request forwarding type, respectively filling a request forwarding type mark, the address of the first interphone and the address of the second interphone into a message type zone bit, a source address zone bit and a destination address zone bit of the specified data frame, and generating a reverse signaling for requesting transmission; the address of the second interphone is determined according to the local routing table of the first interphone;
and a radio frequency transceiver module 403, configured to send the reverse signaling to the second intercom.
The processing module 402 is configured to determine that the type of the message to be transmitted is a broadcast type when the trigger condition is that a reverse signaling of the broadcast type is received or a broadcast instruction input by a user is received.
The processing module 402 is configured to determine that the type of the to-be-transmitted message is a request forwarding type when the triggering condition is that a reverse signaling of the request forwarding type and corresponding service data are received, or a request forwarding instruction input by a user is received.
The radio frequency transceiver module 403 is further configured to send, after sending the reverse signaling to the second intercom when the type of the message to be transmitted is the request forwarding type, and when receiving the confirmation information of the second intercom, service data corresponding to the reverse signaling to the second intercom;
or when the rejection information of the second interphone is received, determining another interphone from the local routing table of the first interphone, and sending the reverse signaling to the other second interphone.
It should be noted that the specific implementation manner and the technical effect of the embodiment of the present invention are consistent with the implementation manner and the technical effect of the embodiment provided in the first aspect, and are not described herein again.
In a fourth aspect, an embodiment of the present application provides a second intercom, and specific implementation of the second intercom may refer to description of the method embodiment, and repeated details are not repeated, as shown in fig. 4, the second intercom mainly includes:
a radio frequency transceiver module 403, configured to acquire a reverse signaling sent by the first intercom;
a processing module 402, configured to read a message type flag from the reverse signaling; when the message type flag bit indicates that the type of the transmission message is a broadcast type, reading a source address flag bit and a hop count flag bit from the reverse signaling, and updating source address corresponding to the source address flag bit and hop count information corresponding to the hop count flag bit into a local routing table; and when the message type flag bit indicates that the type of the transmission message is a request forwarding type, responding to the reverse signaling according to the current working state of the second interphone.
The processing module 402 is further configured to, when the message type flag indicates that the type of the transmission message is a broadcast type, obtain a signal strength when receiving the reverse signaling, and correspondingly update the signal strength to the local routing table.
A processing module 402, configured to send acknowledgement information to the first intercom if it is determined that the second intercom is currently idle, and obtain service data corresponding to the reverse signaling sent by the first intercom; and if the second interphone is judged to be busy currently, sending rejection information to the first interphone so that the first interphone determines another second interphone from a local routing table and sends the reverse signaling to the other second interphone.
A processing module 402, configured to generate a reverse signaling of the second intercom and send the generated reverse signaling to a next-hop intercom after acquiring service data corresponding to the reverse signaling sent by the first intercom, if the second intercom is not a master control node, where a message type flag bit in the reverse signaling of the second intercom is a request forwarding type, a source address flag bit is an address of the second intercom, and a destination address flag bit is the next-hop intercom, where the next-hop intercom is determined based on a local routing table of the second intercom.
It can be understood that the intercom in the ad hoc network may be used as the first intercom and may also be used as the second intercom at different times, so that, in a specific implementation, the structures shown in fig. 4 may be adopted for both the first intercom and the second intercom, and the structures of the first intercom and the second intercom may be the same, and when the intercom is used as the second intercom in a communication process, the second intercom may also include the triggering module 401, but the triggering module 401 may not work.
It should be noted that the specific implementation manner and the technical effect of the embodiment of the present invention are consistent with the implementation manner and the technical effect of the embodiment proposed in the second aspect, and are not described herein again.
In a fifth aspect, based on the same technical concept, an embodiment of the present application further provides a narrowband wireless ad hoc network system, including: the first intercom device of the third aspect and the second intercom device of the fourth aspect.
The first interphone is used for acquiring a trigger condition for sending a reverse signaling; determining the type of the message to be transmitted based on the trigger condition; when the type of the message to be transmitted is a broadcast type, respectively filling a broadcast type mark, the address of the first interphone and the hop count information into a message type zone bit, a source address zone bit and a hop count zone bit of a specified data frame to generate a reverse signaling for updating a routing table; the hop count information is used for indicating the hop count of arriving at a specified node; when the type of the message to be transmitted is a request forwarding type, respectively filling a request forwarding type mark, the address of the first interphone and the address of the second interphone into a message type zone bit, a source address zone bit and a destination address zone bit of the specified data frame, and generating a reverse signaling for requesting transmission; the address of the second interphone is determined according to the local routing table of the first interphone; sending the reverse signaling to a second interphone;
the second interphone is used for acquiring the reverse signaling sent by the first interphone; reading a message type flag bit from the reverse signaling; when the message type flag bit indicates that the type of the transmission message is a broadcast type, reading a source address flag bit and a hop count flag bit from the reverse signaling, and updating source address corresponding to the source address flag bit and hop count information corresponding to the hop count flag bit into a local routing table; and when the message type flag bit indicates that the type of the transmission message is a request forwarding type, responding to the reverse signaling according to the current working state of the second interphone.
In a sixth aspect, based on the same concept, an embodiment of the present application further provides an electronic device, as shown in fig. 5, where the electronic device mainly includes: a processor 501, a memory 502 and a communication bus 503, wherein the processor 501 and the memory 502 communicate with each other through the communication bus 503. The memory 502 stores a program executable by the processor 501, and the processor 501 executes the program stored in the memory 502, so as to implement the following steps:
acquiring a trigger condition for sending a reverse signaling;
determining the type of the message to be transmitted based on the trigger condition;
when the type of the message to be transmitted is a broadcast type, respectively filling a broadcast type mark, the address of the first interphone and the hop count information into a message type zone bit, a source address zone bit and a hop count zone bit of a specified data frame to generate a reverse signaling for updating a routing table; the hop count information is used for indicating the hop count of arriving at a specified node;
when the type of the message to be transmitted is a request forwarding type, respectively filling a request forwarding type mark, the address of the first interphone and the address of the second interphone into a message type zone bit, a source address zone bit and a destination address zone bit of the specified data frame, and generating a reverse signaling for requesting transmission; the address of the second interphone is determined according to the local routing table of the first interphone;
sending the reverse signaling to a second interphone;
or,
acquiring a reverse signaling sent by a first interphone;
reading a message type flag bit from the reverse signaling;
when the message type flag bit indicates that the type of the transmission message is a broadcast type, reading a source address flag bit and a hop count flag bit from the reverse signaling, and updating source address corresponding to the source address flag bit and hop count information corresponding to the hop count flag bit into a local routing table;
and when the message type flag bit indicates that the type of the transmission message is a request forwarding type, responding to the reverse signaling according to the current working state of the second interphone.
The communication bus 503 mentioned in the electronic device may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The communication bus 503 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in FIG. 5, but this is not intended to represent only one bus or type of bus. The Memory 502 may include a Random Access Memory (RAM) or a non-volatile Memory (non-volatile Memory), such as at least one disk Memory. Alternatively, the memory may be at least one memory device located remotely from the aforementioned processor 501.
The Processor 501 may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc., and may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic devices, discrete gates or transistor logic devices, and discrete hardware components.
In a seventh aspect, in yet another embodiment of the present application, there is also provided a computer-readable storage medium having stored therein a computer program, which, when run on a computer, causes the computer to execute the narrowband communication method described in the above-described embodiment.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wirelessly (e.g., infrared, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that includes one or more of the available media. The available media may be magnetic media (e.g., floppy disks, hard disks, tapes, etc.), optical media (e.g., DVDs), or semiconductor media (e.g., solid state drives), among others.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (19)
1. A narrow-band communication method is characterized in that the method is suitable for a first interphone; the method comprises the following steps:
acquiring a trigger condition for sending a reverse signaling;
determining the type of the message to be transmitted based on the trigger condition;
when the type of the message to be transmitted is a broadcast type, respectively filling a broadcast type mark, the address of the first interphone and the hop count information into a message type zone bit, a source address zone bit and a hop count zone bit of a specified data frame to generate a reverse signaling for updating a routing table; the hop count information is used for indicating the hop count of arriving at a specified node;
when the type of the message to be transmitted is a request forwarding type, respectively filling a request forwarding type mark, the address of the first interphone and the address of the second interphone into a message type zone bit, a source address zone bit and a destination address zone bit of the specified data frame, and generating a reverse signaling for requesting transmission; the address of the second interphone is determined according to the local routing table of the first interphone;
and sending the reverse signaling to a second interphone.
2. The narrowband communication method according to claim 1, wherein the determining a type of the message to be transmitted based on the trigger condition comprises: and when the triggering condition is that a reverse signaling of a broadcast type is received or a broadcast instruction input by a user is received, determining that the type of the message to be transmitted is the broadcast type.
3. The narrowband communication method according to claim 1, wherein the determining a type of the message to be transmitted based on the trigger condition comprises: and when the triggering condition is that a reverse signaling of a request forwarding type and corresponding service data are received or a request forwarding instruction input by a user is received, determining that the type of the message to be transmitted is the request forwarding type.
4. The narrowband communication method according to claim 1 or 3, wherein when the type of the message to be transmitted is a request-to-forward type, after the sending the reverse signaling to the second intercom, further comprising:
when receiving the confirmation information of the second interphone, sending the service data corresponding to the reverse signaling to the second interphone;
or when the rejection information of the second interphone is received, determining another interphone from the local routing table of the first interphone, and sending the reverse signaling to the other second interphone.
5. A method of narrowband communication, adapted for use with a second intercom, the method comprising:
acquiring a reverse signaling sent by a first interphone;
reading a message type flag bit from the reverse signaling;
when the message type flag bit indicates that the type of the transmission message is a broadcast type, reading a source address flag bit and a hop count flag bit from the reverse signaling, and updating source address corresponding to the source address flag bit and hop count information corresponding to the hop count flag bit into a local routing table;
and when the message type flag bit indicates that the type of the transmission message is a request forwarding type, responding to the reverse signaling according to the current working state of the second interphone.
6. The narrowband communication method according to claim 5, wherein when the message type flag bit indicates that the type of the transmission message is a broadcast type, further comprising: and acquiring the signal intensity when the reverse signaling is received, and correspondingly updating the signal intensity into the local routing table.
7. The method according to claim 5, wherein said responding to said reverse signaling according to the current operating status of said second intercom includes:
if the second interphone is idle currently, sending confirmation information to the first interphone, and acquiring service data corresponding to the reverse signaling sent by the first interphone;
and if the second interphone is busy currently, sending rejection information to the first interphone so that the first interphone determines another second interphone from a local routing table and sends the reverse signaling to the another second interphone.
8. The narrowband communication method according to claim 7, wherein after the obtaining of the service data corresponding to the reverse signaling sent by the first intercom, the method further comprises:
and if the second interphone is not the master control node, generating a reverse signaling of the second interphone, and sending the reverse signaling to a next-hop interphone, wherein a message type flag bit in the reverse signaling of the second interphone is a request forwarding type, a source address flag bit is an address of the second interphone, and a destination address flag bit is an address of the next-hop interphone, wherein the next-hop interphone is determined based on a local routing table of the second interphone.
9. A first intercom, characterized in that said first intercom comprises:
the trigger module is used for acquiring a trigger condition for sending a reverse signaling;
the processing module is used for determining the type of the message to be transmitted based on the trigger condition; when the type of the message to be transmitted is a broadcast type, respectively filling a broadcast type mark, the address of the first interphone and the hop count information into a message type zone bit, a source address zone bit and a hop count zone bit of a specified data frame to generate a reverse signaling for updating a routing table; the hop count information is used for indicating the hop count of arriving at a specified node; when the type of the message to be transmitted is a request forwarding type, respectively filling a request forwarding type mark, the address of the first interphone and the address of the second interphone into a message type zone bit, a source address zone bit and a destination address zone bit of the specified data frame, and generating a reverse signaling for requesting transmission; the address of the second interphone is determined according to the local routing table of the first interphone;
and the radio frequency transceiving module is used for sending the reverse signaling to the second interphone.
10. The first interphone according to claim 9, wherein the processing module is configured to determine that the type of the message to be transmitted is a broadcast type when a trigger condition is that a reverse signaling of the broadcast type is received or a broadcast instruction input by a user is received.
11. The first interphone according to claim 10, wherein the processing module is configured to determine that the type of the message to be transmitted is the request forwarding type when a trigger condition is that a reverse signaling and corresponding service data of the request forwarding type are received or a request forwarding instruction input by a user is received.
12. The first interphone according to claim 9 or 11, wherein the radio frequency transceiver module is further configured to send the service data corresponding to the reverse signaling to the second interphone after sending the reverse signaling to the second interphone and when receiving the acknowledgement information of the second interphone when the type of the message to be transmitted is a request forwarding type;
or when the rejection information of the second interphone is received, determining another interphone from the local routing table of the first interphone, and sending the reverse signaling to the other second interphone.
13. A second intercom, comprising:
the radio frequency transceiving module is used for acquiring a reverse signaling sent by the first interphone;
the processing module is used for reading a message type flag bit from the reverse signaling; when the message type flag bit indicates that the type of the transmission message is a broadcast type, reading a source address flag bit and a hop count flag bit from the reverse signaling, and updating source address corresponding to the source address flag bit and hop count information corresponding to the hop count flag bit into a local routing table; and when the message type flag bit indicates that the type of the transmission message is a request forwarding type, responding to the reverse signaling according to the current working state of the second interphone.
14. The second intercom system according to claim 13, wherein said processing module is further configured to, when said message type flag bit indicates that the type of the transmission message is a broadcast type, obtain a signal strength when receiving said reverse signaling, and update said signal strength correspondingly to said local routing table.
15. The second intercom system according to claim 14, wherein the processing module is configured to send a confirmation message to the first intercom system if it is determined that the second intercom system is currently idle, and obtain service data corresponding to the reverse signaling sent by the first intercom system; and if the second interphone is judged to be busy currently, sending rejection information to the first interphone so that the first interphone determines another second interphone from a local routing table and sends the reverse signaling to the other second interphone.
16. The second intercom of claim 15, wherein the processing module is configured to, after obtaining the service data corresponding to the reverse signaling sent by the first intercom, generate a reverse signaling of the second intercom and send the reverse signaling to a next-hop intercom if the second intercom is not a master control node, where a message type flag bit in the reverse signaling of the second intercom is a request forwarding type, a source address flag bit is an address of the second intercom, and a destination address flag bit is a next-hop intercom, and the next-hop intercom is determined based on a local routing table of the second intercom.
17. A narrowband wireless ad hoc network system, comprising: the first intercom set according to any one of claims 9 to 12 and the second intercom set according to any one of claims 13 to 16.
18. An electronic device, comprising: the system comprises a processor, a memory and a communication bus, wherein the processor and the memory are communicated with each other through the communication bus;
the memory for storing a computer program;
the processor is used for executing the program stored in the memory and realizing the narrow-band communication method of any one of claims 1 to 4 or 5 to 8.
19. A computer-readable storage medium storing a computer program, wherein the computer program is executed by a processor to implement the narrowband communication method according to any one of claims 1 to 4 or 5 to 8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110725274.7A CN113259864B (en) | 2021-06-29 | 2021-06-29 | Narrow-band communication method, interphone, equipment, storage medium and ad hoc network system |
| PCT/CN2021/120704 WO2023272981A1 (en) | 2021-06-29 | 2021-09-26 | Narrowband communication method, walkie-talkie, device, storage medium, and ad hoc networking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110725274.7A CN113259864B (en) | 2021-06-29 | 2021-06-29 | Narrow-band communication method, interphone, equipment, storage medium and ad hoc network system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113259864A true CN113259864A (en) | 2021-08-13 |
| CN113259864B CN113259864B (en) | 2021-09-21 |
Family
ID=77190015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110725274.7A Active CN113259864B (en) | 2021-06-29 | 2021-06-29 | Narrow-band communication method, interphone, equipment, storage medium and ad hoc network system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113259864B (en) |
| WO (1) | WO2023272981A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113630754A (en) * | 2021-10-13 | 2021-11-09 | 广州慧睿思通科技股份有限公司 | Multi-channel data forwarding method, device, equipment and storage medium |
| CN114629518A (en) * | 2022-03-31 | 2022-06-14 | 厦门骐俊物联科技股份有限公司 | Dynamic ad hoc network method of digital interphone |
| CN114666749A (en) * | 2022-05-18 | 2022-06-24 | 深圳市宇隆移动互联网有限公司 | LoRa-based talkback method and system, computer equipment and storage medium |
| CN115297293A (en) * | 2022-07-14 | 2022-11-04 | 广州慧睿思通科技股份有限公司 | Tactical gesture transmission method, interphone, equipment and storage medium |
| WO2023272981A1 (en) * | 2021-06-29 | 2023-01-05 | 广州慧睿思通科技股份有限公司 | Narrowband communication method, walkie-talkie, device, storage medium, and ad hoc networking system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108055205A (en) * | 2018-01-26 | 2018-05-18 | 武汉理工大学 | It is used to implement the Routing Protocol and method for routing of VDES |
| CN108282502A (en) * | 2017-01-05 | 2018-07-13 | 上海竺程信息科技有限公司 | Vehicle network message optimisation broadcasting method based on dynamic priority |
| US20200266895A1 (en) * | 2017-09-21 | 2020-08-20 | Teknologian Tutkimuskeskus Vtt Oy | Long-distance rf frequency and time transfer |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100401659C (en) * | 2005-07-28 | 2008-07-09 | 华南理工大学 | Digital intercommunication and long-range telecommunication realization by transit |
| CN100512226C (en) * | 2006-12-07 | 2009-07-08 | 中国科学院计算技术研究所 | Method for forming fine convergence gradient in sensor network |
| MX336289B (en) * | 2011-10-11 | 2016-01-13 | Xg Technology Inc | Cognitive mobile time division duplex ad-hoc network. |
| CN106953656B (en) * | 2017-03-30 | 2019-02-22 | 广东工业大学 | A kind of intelligent terminal control intercom carries out the method and apparatus of information transmission |
| CN107222838A (en) * | 2017-08-02 | 2017-09-29 | 深圳市威泰能源有限公司 | A kind of transmission method of intercom and intercommunication information |
| CN111356202B (en) * | 2020-03-09 | 2022-03-04 | 大唐联诚信息系统技术有限公司 | Low-overhead hybrid routing protocol method for narrowband ad hoc network |
| CN112423253A (en) * | 2020-10-13 | 2021-02-26 | 北京云联慧通科技有限公司 | Narrow-band ad hoc network communication protocol applied to wireless electronic thermometer |
| CN113259864B (en) * | 2021-06-29 | 2021-09-21 | 广州慧睿思通科技股份有限公司 | Narrow-band communication method, interphone, equipment, storage medium and ad hoc network system |
-
2021
- 2021-06-29 CN CN202110725274.7A patent/CN113259864B/en active Active
- 2021-09-26 WO PCT/CN2021/120704 patent/WO2023272981A1/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108282502A (en) * | 2017-01-05 | 2018-07-13 | 上海竺程信息科技有限公司 | Vehicle network message optimisation broadcasting method based on dynamic priority |
| US20200266895A1 (en) * | 2017-09-21 | 2020-08-20 | Teknologian Tutkimuskeskus Vtt Oy | Long-distance rf frequency and time transfer |
| CN108055205A (en) * | 2018-01-26 | 2018-05-18 | 武汉理工大学 | It is used to implement the Routing Protocol and method for routing of VDES |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023272981A1 (en) * | 2021-06-29 | 2023-01-05 | 广州慧睿思通科技股份有限公司 | Narrowband communication method, walkie-talkie, device, storage medium, and ad hoc networking system |
| CN113630754A (en) * | 2021-10-13 | 2021-11-09 | 广州慧睿思通科技股份有限公司 | Multi-channel data forwarding method, device, equipment and storage medium |
| CN114629518A (en) * | 2022-03-31 | 2022-06-14 | 厦门骐俊物联科技股份有限公司 | Dynamic ad hoc network method of digital interphone |
| CN114629518B (en) * | 2022-03-31 | 2024-03-01 | 厦门骐俊物联科技股份有限公司 | Dynamic ad hoc network method of digital interphone |
| CN114666749A (en) * | 2022-05-18 | 2022-06-24 | 深圳市宇隆移动互联网有限公司 | LoRa-based talkback method and system, computer equipment and storage medium |
| CN115297293A (en) * | 2022-07-14 | 2022-11-04 | 广州慧睿思通科技股份有限公司 | Tactical gesture transmission method, interphone, equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023272981A1 (en) | 2023-01-05 |
| CN113259864B (en) | 2021-09-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113259864B (en) | Narrow-band communication method, interphone, equipment, storage medium and ad hoc network system | |
| CN113301511B (en) | Node joining method, interphone, system and storage medium | |
| Soua et al. | Wave: a distributed scheduling algorithm for convergecast in IEEE 802.15. 4e TSCH networks | |
| US8121077B2 (en) | Relay device and relay method | |
| US7693122B2 (en) | Resource reservation in a wireless network with distributed medium access control | |
| EP2840860B1 (en) | Hybrid Mesh Network | |
| JP4751867B2 (en) | Equipment for centralized control of mesh networks | |
| KR101604599B1 (en) | Providing communication path information in hybrid networks | |
| JP4679616B2 (en) | Wireless LAN relay device, wireless LAN relay method, and computer program | |
| CN107889185B (en) | Networking method of wireless data acquisition system of electric meter | |
| TWI445355B (en) | Mesh deterministic access (mda) procedure in wireless mesh network and wireless device supporting the same | |
| MX2009002655A (en) | Selecting a leader node for an ad hoc network based on services. | |
| CN113746585B (en) | Time service method and communication device | |
| US20100020740A1 (en) | Wireless Communication System, Wireless Communication Device, Wireless Communication Method, and Program | |
| CN109068367B (en) | Wireless token passing method, device, equipment and readable storage medium | |
| CN108370610B (en) | Interference mitigation in dense mesh networks | |
| JP2015535416A (en) | System, apparatus, and method for range expansion of wireless communication (RANGEEXTENSION) | |
| JP5705030B2 (en) | Communications system | |
| US7801097B2 (en) | Setting up of a wireless network by determining and utilizing local topology information | |
| RU2378801C2 (en) | Method of communication in wireless local network with group consisting of repeaters and radio access stations | |
| CN103782645A (en) | Systems and methods for resetting network station | |
| US20160014670A1 (en) | Method for generating network route using tv white space | |
| CN101601324B (en) | Wireless non-cellular network | |
| CN107959985B (en) | Hybrid mesh network construction method, data transmission method and device | |
| JP2006005653A (en) | Method and system for radio access control |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Narrowband communication method, walkie-talkie, equipment, storage medium and ad hoc network system Effective date of registration: 20220809 Granted publication date: 20210921 Pledgee: China Co. truction Bank Corp Guangzhou Panyu branch Pledgor: Guangzhou huiruisitong Technology Co.,Ltd. Registration number: Y2022440000191 |
|
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20230207 Granted publication date: 20210921 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20240402 Granted publication date: 20210921 |