CN111132037B - Industrial field communication system and method based on UWB technology - Google Patents
Industrial field communication system and method based on UWB technology Download PDFInfo
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- CN111132037B CN111132037B CN201911217306.1A CN201911217306A CN111132037B CN 111132037 B CN111132037 B CN 111132037B CN 201911217306 A CN201911217306 A CN 201911217306A CN 111132037 B CN111132037 B CN 111132037B
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- 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
- H04W4/10—Push-to-Talk [PTT] or Push-On-Call services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/713—Spread spectrum techniques using frequency hopping
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
- H04L51/04—Real-time or near real-time messaging, e.g. instant messaging [IM]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/02—Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/03—Protecting confidentiality, e.g. by encryption
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/33—Services specially adapted for particular environments, situations or purposes for indoor environments, e.g. buildings
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
- H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/40—Connection management for selective distribution or broadcast
- H04W76/45—Connection management for selective distribution or broadcast for Push-to-Talk [PTT] or Push-to-Talk over cellular [PoC] services
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- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses an industrial field communication system and method based on UWB technology, wherein the system comprises an industrial PDA, a UWB back clip, an instant messaging APP, a UWB base station and a background data forwarding system. The invention adds a UWB back clip on the basis of the existing industrial PDA, deploys a UWB base station on the industrial site, and uses the mature function module of the industrial PDA for recording and voice playing, and adopts the side key of the industrial PDA as an instant talk-back button to develop a corresponding special APK application program, so that after a user sets a default talk-back object and group, the clear and reliable instant voice talk-back function can be realized after pressing the talk-back button, and the radius coverage range of the UWB base station can reach more than 300 meters, which is enough to cover a common industrial site factory building.
Description
Technical Field
The invention belongs to the technical field of voice communication, and particularly relates to an industrial field communication system and method based on a UWB technology.
Background
With the rapid development of the integrated circuit industry and communication technology and the continuous upgrading and perfecting of the communication interface protocol specification, the communication technology has been developed greatly, and the data voice communication from the traditional wired telephone to the wireless cellular telephone and then to the latter has been popularized in a wide range on various mobile terminals, which brings great convenience to the daily life trip of the masses of people, especially the instant voice communication in recent years, such as: the communication modes of WeChat voice, QQ voice and the like greatly shorten the communication distance between people and avoid communication obstacles caused by time and space.
However, because the communication technology usually depends on the basic communication network of the operator, the communication effect is relatively good under the condition of good network signals, but in some special application occasions, such as industrial fields with complex electromagnetic environment and remote areas in cities, the base station covers unstable areas, the communication signals become very poor, the instant communication effect established on the basis is still more obvious, and the real-time clear voice communication function is difficult to realize; in addition, because the current commercial real-time data voice communication is based on the public network frequency band, and various data acquisition and transmission devices are deployed in the industrial field, the real-time data voice communication is easy to interfere with the instant data voice communication by basically adopting the public network communication frequency band; secondly, some special departments in the industrial field have very high requirements on communication reliability and confidentiality, and the application range of the civil data voice communication technology is greatly limited.
Disclosure of Invention
The invention aims to provide an industrial field communication system and method based on UWB technology, which can ensure the communication reliability and data security to the maximum extent while keeping the convenience of wireless instant voice communication.
The technical solution for realizing the purpose of the invention is as follows: an industrial field communication system based on UWB technology comprises an industrial PDA, a UWB back clip, an instant communication APP, a UWB base station and a background data forwarding system;
the industrial PDA is used for realizing voice input and voice play and is used as a special UWB back clip and a physical carrier of a communication APP;
the UWB back clip is used for wireless transmission, distance measurement and positioning of voice data;
the instant messaging APP is used as an industrial field voice communication management interactive interface to realize the functions of setting communication users, groups and other configuration parameters and caching data;
the UWB base station is used for carrying out wireless communication with a UWB back clip of the industrial PDA to realize wireless transmission of data of a physical layer;
the background data forwarding system is used for receiving physical layer data of the UWB base station and broadcasting voice data through a UWB wireless channel according to communication objects and groups of a target client, so that instant data voice communication is realized.
A communication method of industrial field communication system based on UWB technology includes the following steps:
the first step is as follows: opening an APK program special for the industrial PDA, and recording voice information by means of a microphone of the industrial PDA;
the second step is that: the special APK encrypts and packages the voice data, and transmits the voice data to the UWB back clamp through a local serial port;
the third step: the UWB back clip transmits the packaged voice data to a UWB base station through a UWB special wireless channel;
the fourth step: the UWB base station uploads the received voice data and the ID information to a background data forwarding system;
the fifth step: the background data forwarding system transmits the data information to a corresponding target UWB back clip through the base station in a downlink manner according to the target ID information;
and a sixth step: and after receiving the voice data packet, the target UWB back clip transmits the voice data packet to the bound industrial PDA through the local serial port to complete one-time voice data communication.
Compared with the traditional industrial field wired communication and the current popular real-time voice communication mode, the invention has the remarkable advantages that: (1) the real-time voice talkback can be realized only by slightly modifying the existing industrial PDA, and the deployment and maintenance cost is low; (2) the communication system adopts non-power frequency communication frequency, so that the anti-interference capability is strong and the stability is good; (3) the communication system can perform frequency hopping encryption transmission among a plurality of channels by means of the broadband range of UWB, and the data privacy and the safety are high; (4) the system adopts an own intranet system, is completely independent of the deployment range of the public network of an operator, is stable and reliable, is deployed at one time, does not have later flow cost, and has low operation cost; (5) by means of UWB high-precision ranging and indoor positioning functions, the communication system can seamlessly combine communication time dimension and space dimension, and provide data support for other value-added expansion applications; (6) the invention realizes the voice data frequency hopping transmission through the UWB non-common frequency end, and is stable, reliable and safe.
Drawings
Fig. 1 is a block diagram of an industrial field communication system based on UWB technology.
Fig. 2 is a flowchart for implementing voice communication in industrial field based on UWB technology.
Detailed Description
As shown in fig. 1, an industrial field communication system based on UWB technology includes an industrial PDA, a UWB back-clip, an instant messaging APP, a UWB base station, and a background data forwarding system;
the industrial PDA is used for realizing voice recording and playing functions and is used as a special UWB back clip and a physical carrier of a communication APP;
the UWB back clip is used for wireless transmission, distance measurement and positioning of voice data; the UWB technology can realize distance measurement and positioning, and the high-speed transmission technology (6.8Mbps) of the UWB technology can be used for realizing data safety transmission while measuring distance and positioning, so that the invention not only can realize point-to-point communication, but also can judge the position point of the communication, thereby forming a more complete real-time voice communication scheme;
the instant messaging APP is used as an industrial field voice communication management interactive interface to realize the functions of setting communication users, groups and other configuration parameters and caching data; the configuration parameters comprise communication channel, communication transmission delay, communication rate, one-to-one or one-to-many communication and other parameter settings;
the UWB base station is used for carrying out wireless communication with a UWB back clip of the industrial PDA to realize wireless transmission of data of a physical layer;
the background data forwarding system is used for receiving the physical layer data of the micro base station and broadcasting the voice data through a UWB wireless channel according to the communication object and the group of the target client, so as to realize the instant data voice communication.
Furthermore, the UWB back clamp comprises an MCU master control module, an RF wireless communication module, a positioning sensor and a power supply module; the MCU main control mainly realizes the logic function control of an RF wireless communication module, a positioning sensor and a power supply module which are arranged outside; the RF wireless communication module mainly realizes data transmission in a short distance range by means of a UWB wireless channel; the positioning sensor is mainly used for realizing the accurate positioning function through the ranging information between the positioning sensor and the base station; the power supply module is mainly used for supplying power for all modules, and meanwhile, a power supply system is managed through the dormancy logic controlled by the MCU, so that power consumption is reduced, and endurance time is prolonged. The RF communication range is between 10 cm and 8 m.
Furthermore, the industrial PDA comprises a voice recording microphone, a special APK, a voice analyzing and playing loudspeaker and a local communication interface;
the special APK is used for realizing man-machine interaction and upper-layer business logic, capturing the operation key action of a user, and by means of the powerful operation processing capacity of the smart phone, such as: voice input, voice play, real-time display of transmission data information and data transmission result return functions; the voice recording microphone is used for recording a voice mailbox, and the local communication interface refers to a communication interface between the PDA and the UWB module; speech analysis has a special digital-to-analog conversion (DA conversion) to analyze and synthesize digital speech signals into analog speech signals that can be played by a speaker.
The invention also provides a communication method based on the industrial field communication system, which comprises the following steps:
the first step is as follows: the user opens the APK program special for the PDA and inputs voice information by means of a microphone of the PDA;
the second step is that: voice data are encrypted and packaged inside the APK, and the voice data are transmitted to the UWB back-clip module through the local serial port;
the third step: the UWB back-clip module transmits the packaged voice data to a UWB base station through a UWB special wireless channel;
the fourth step: the UWB base station uploads the received voice data and the ID information to an internal background server;
the fifth step: the background server transmits the data information to a corresponding UWB back clip through the base station in a downlink manner according to the target ID information;
and a sixth step: after receiving the voice data packet, the target UWB back clip transmits the voice data packet to the binding PDA through a local serial port, and further plays the voice data packet to a target user for answering, so that one-time voice data communication is completed;
the target user can realize voice data transmission through the same process, and further realize a real-time talkback function.
When the target UWB back clip is in a busy line, the system temporarily stores the voice message of the calling party and plays and reminds when the other party is idle.
The invention adds a UWB back clip on the basis of the existing industrial PDA, deploys a UWB micro base station in the industrial field, records and plays voice by means of the mature function module of the PDA, adopts the side key of the PDA as an instant talkback button, develops a corresponding special APK application program, and after a user sets a default talkback object and group, the clear and reliable instant voice talkback function can be realized after the talkback button is pressed down, and the radius coverage range of the UWB micro base station can reach more than 300 meters and is enough to cover a common industrial field factory building.
The present invention will be described in detail with reference to the following examples and drawings.
Examples
An industrial field communication system based on UWB communication technology is mainly composed of an industrial PDA, a special UWB back clamp, an instant communication APP, a micro base station and a background data forwarding system.
The industrial PDA is mainly used for realizing normal voice recording and playing functions and is used as a physical carrier of a special UWB back clamp and a communication APP; the special UWB back clip is mainly used for completing the wireless transmission function, the distance measurement function and the positioning function of voice data; the instant messaging APP is used as an industrial field voice communication management interactive interface to realize the functions of setting communication users, groups and other configuration parameters and caching data; the micro base station is mainly used for carrying out wireless communication with a UWB back clip of the PDA to realize the wireless transmission function of data of a physical layer; the background data forwarding system is mainly used for receiving physical layer data of the base station, broadcasting voice data through a UWB wireless channel according to messages of communication objects, groups and the like of a target client, and finally realizing instant data voice communication.
Before a user uses the system for voice communication for the first time, the user needs to log in the system for user registration, and the background automatically binds and stores the user ID, the unique ID of the UWB back clip and the ID of the PDA; then, after the user finishes the registration, the user can select and set point-to-point communication objects or communication groups and other basic parameter settings such as communication speed, transmission delay and the like from the user catalog pushed by the system; next, the user can press the side key of the PDA to carry out instant voice talkback with the set target object; in the process of talkback, when a user presses a talkback key, the system automatically sends a communication request handshake to link to the target object PDA; if the opposite side is in an idle state, a communication link is immediately established, and communication is responded; if the opposite side is in other voice talkback, the system automatically prompts the opposite side that the system is busy and the link is not established for the moment; when the communication link is successfully established, the system automatically sends a specific voice prompt, and then the system can enter a voice talkback mode; further special APP can call a microphone of the PDA to record voice data of a user at the background, the UWB back clip is packaged and transmitted through a local communication interface according to an agreed communication protocol, the UWB back clip is transmitted to the micro base station in a wireless mode, and the base station forwards a target object or broadcasts the target object to a corresponding group through a background system to complete a data voice talkback function. When the voice sending of the calling object is finished and the talkback key is released, the system automatically receives and calls the voice decoding and the loudspeaker of the PDA to play the voice data replied by the other party. In addition, the system can also realize that when the other party is on a busy line, the system temporarily stores the voice message of the calling party and plays the prompt when the other party is idle so as to avoid missing important work notification and prompt. The flow of the communication method is shown in fig. 2.
The invention provides an industrial field instant voice communication method and system based on UWB technology aiming at the requirements of traditional industrial field on the safety and reliability of instant voice communication, and the more reliable, more stable and safer industrial field instant voice communication can be realized by simply transforming the existing PDA. The system overcomes the defects of unstable signals, unsafe data and the like of the existing instant voice communication based on the public network of an operator, adopts a non-public frequency radar wave band, and has strong anti-jamming capability, high stability and low deployment and maintenance cost; meanwhile, the safety and the privacy of communication data can be guaranteed by means of frequency hopping communication in an intranet UWB broadband, and especially for some special industries, the communication content relates to application occasions such as enterprise core technology sensitive information, military confidential information and the like, and the safety and the privacy of the communication data are particularly important. Finally, the system can realize the function of free trial for ever by one-time deployment, the operation and maintenance cost is low, the enterprise operation cost can be greatly reduced, the productivity is improved by technical means, and the benign, stable and healthy development of the enterprise is promoted while the automation management level of the enterprise is improved.
Claims (4)
1. An industrial field communication system based on UWB technology is characterized by comprising an industrial PDA, a UWB back clip, an instant messaging APP, a UWB base station and a background data forwarding system;
the industrial PDA is used for realizing voice input and voice play and is used as a special UWB back clip and a physical carrier of an instant messaging APP; the industrial PDA is internally provided with a special APK, and the special APK is used for capturing the operation key actions of a user and realizing the functions of voice input, voice playing, real-time display of transmitted data information and return of data transmission results;
the UWB back clip is used for wireless transmission, distance measurement and positioning of voice data;
the instant messaging APP is used as an industrial field voice communication management interactive interface to realize the functions of setting communication users, groups and other configuration parameters and caching data; the other configuration parameters comprise communication channels, communication transmission delay, communication speed and one-to-one or one-to-many communication;
the UWB base station is used for carrying out wireless communication with a UWB back clip of the industrial PDA to realize wireless transmission of data of a physical layer;
the background data forwarding system is used for receiving physical layer data of the UWB base station and broadcasting voice data through a UWB wireless channel according to communication objects and groups of a target client, so that instant data voice communication is realized;
the industrial PDA comprises a voice recording microphone, a special APK, a voice analyzing and playing loudspeaker and a local communication interface; the special APK is used for realizing human-computer interaction and upper-layer service logic and capturing the operation key action of a user; the voice recording microphone is used for recording a voice mailbox, and the local communication interface refers to a communication interface between the PDA and the UWB module; the voice analysis playing loudspeaker analyzes and synthesizes the digital voice signals into analog voice signals which can be played by the loudspeaker through a digital-analog conversion module;
before a user uses the system for voice communication for the first time, the user needs to log in the system for user registration, and the background automatically binds and stores the user ID, the unique ID of the UWB back clip and the ID of the PDA; then, after the user finishes the registration, the user can select and set a point-to-point communication object or a communication group and other communication speed and sending delay settings from a user directory pushed by the system; next, the user can press the side key of the PDA to carry out instant voice talkback with the set target object; in the process of talkback, when a user presses a talkback key, the system automatically sends a communication request handshake to link to the target object PDA; if the opposite side is in an idle state, a communication link is immediately established, and communication is responded; if the opposite side is in other voice talkback, the system automatically prompts the opposite side that the system is busy and the link is not established for the moment; when the communication link is successfully established, the system automatically sends a specific voice prompt, and then the system can enter a voice talkback mode; further, the special APK calls a microphone carried by the PDA at the background to record user voice data, the user voice data is packaged and transmitted to the UWB back clip through a local communication interface according to an agreed communication protocol and is transmitted to the micro base station in a wireless mode, and the base station forwards a target object or broadcasts the target object to a corresponding group through a background system to complete a primary data voice talkback function; when the voice transmission of the calling object is finished and the talkback key is released, the system automatically receives and calls a voice analysis playing loudspeaker of the PDA to play voice data replied by the other party; the system can also realize that the system temporarily stores the voice message of the calling party when the other party is on a busy line and plays and reminds when the other party is idle.
2. The industrial field communication system based on the UWB technology according to claim 1, wherein the UWB back clip comprises an MCU master control, an RF wireless communication module, a positioning sensor and a power supply module;
the MCU master control is used for controlling the logic functions of the RF wireless communication module, the positioning sensor and the power supply module; the RF wireless communication module realizes data transmission in a short distance range by means of a UWB wireless channel; the positioning sensor realizes positioning through ranging information between the positioning sensor and the base station.
3. The industrial field communication system based on the UWB technology as claimed in claim 2, wherein the short distance range is a distance range of 10 cm-8 m.
4. A communication method based on the industrial field communication system based on the UWB technology according to any claim 1 to 3, comprising the following steps:
the first step is as follows: opening an APK program special for the industrial PDA, and recording voice information by means of a microphone of the industrial PDA;
the second step is that: the special APK encrypts and packages the voice data, and transmits the voice data to the UWB back clamp through a local serial port;
the third step: the UWB back clip transmits the packaged voice data to a UWB base station through a UWB special wireless channel;
the fourth step: the UWB base station uploads the received voice data and the ID information to a background data forwarding system;
the fifth step: the background data forwarding system transmits the data information to a corresponding target UWB back clip through the base station in a downlink manner according to the target ID information;
and a sixth step: after receiving the voice data packet, the target UWB back clip transmits the voice data packet to the bound industrial PDA through a local serial port to complete one-time voice data communication;
when the target UWB back clamp is in a busy line, the system temporarily stores the voice message of the calling party and plays and reminds when the other party is idle.
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