CN116321060A - Vehicle-mounted LDSW narrowband wireless communication system for automobile management and working method - Google Patents
Vehicle-mounted LDSW narrowband wireless communication system for automobile management and working method Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/14—Receivers specially adapted for specific applications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
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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
- H04W4/12—Messaging; Mailboxes; Announcements
- H04W4/14—Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
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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
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
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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
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
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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
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
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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
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The automobile becomes a living necessity for people, the existing automobile internal control communication depends on a CAN bus, and the construction and maintenance costs are high; in-car entertainment communication is expected to be star flashing, and external communication is dependent on a mobile network. In addition, with the urgent need for intelligent upgrade of urban traffic management, interactive communication between automobiles and various road facilities is becoming more and more important. In addition to the existing mobile network and the star flash system, the invention introduces independent narrow-band wireless communication systems respectively used for two different traffic environments, namely the inside and the outside of the automobile, not only solves the communication problem between the automobile and between the automobile and the human and between the automobile and the outside when the automobile enters the network-free signal coverage area, but also gradually replaces the CAN bus connection mode by the high-frequency wireless system, thereby not only greatly reducing the construction and maintenance cost of the automobile, but also greatly enhancing the interaction capability between the automobile and road traffic facilities and providing assistance for unmanned driving.
Description
Technical Field
The invention relates to narrowband communication of two different frequencies of the outside and inside of an automobile, which comprises the following steps:
1) When the automobile is not covered by the mobile network signal, the automobile is communicated with other surrounding fleet vehicles and personnel in a long distance and is communicated with the outside in an emergency;
2) High-frequency wireless communication of a CAN bus of an automobile internal control system is replaced;
3) High frequency wireless communication that interacts with road traffic facilities.
Background
The automobile becomes a living necessity for people, the existing automobile internal control communication mainly depends on a CAN bus, and the construction and maintenance costs are very high; in-car entertainment communication is expected to be star flashing; the external communication connection is dependent on a mobile network, and when the automobile arrives at an area without mobile network signal coverage, other than interphone communication or an expensive satellite communication method with a lot of disadvantages are adopted, and other more effective communication means including management communication among vehicles in a motorcade are not available. In addition, with the urgent need for intelligent upgrade of urban traffic management, interaction between automobiles and various road facilities is becoming more and more important, however, so far, there is no simple and low-cost effective means for achieving such interaction. Thus, there is a great need in the automotive industry for new and effective communication technology to address these problems.
Disclosure of Invention
Aiming at the problems, the invention introduces a brand new wireless communication LDSW (Low Duty Cycle Smart Wireless) technology, which comprises an independent narrow-band wireless communication system with different working frequencies aiming at the requirements of two different communication environments in the vehicle and outside the vehicle. The problem of communication between the vehicles and between the vehicles and the people and between the vehicles and the outside when the vehicles enter the coverage area without network signals is solved; the problem that the construction cost and the maintenance cost of the automobile are greatly improved due to the adoption of a CAN bus connection mode in the existing automobile internal control system is also solved; in addition, the newly introduced LDSW low-power-consumption narrow-band communication technology is utilized, so that the interactive communication capability between the vehicle and road traffic facilities is greatly enhanced, and powerful support is provided for unmanned operation.
System architecture
The general architecture and operation of the vehicle-mounted LDSW narrowband wireless communication system for automobile management, hereinafter referred to as LDSW system, can be seen in fig. 1. Each component unit in the LDSW system installed on each car has a unique identity ID.
The LDSW system includes a Sub-G low frequency wireless communication system dedicated for remote communication with other vehicles and persons independent of the existing mobile network, and a high frequency wireless communication system for connecting various sensors and controlled devices in the vehicle in a wireless communication manner.
The frequency used by the LDSW high-frequency wireless communication system is based on the condition that communication is realized in a vehicle under the environment condition that various narrow gaps are needed, including but not limited to using a 2.4G frequency band, and a spread spectrum coding wireless communication mode is suggested to be adopted so as to reduce multipath effect in the wireless signal transmission process; the reason for the high frequency is here that the higher the frequency the shorter the wavelength, the more the wireless signal is able to pass through the slot.
Both high frequency and low frequency LDSW systems are connected to one on-board management unit. The vehicle-mounted management unit can be connected with one or more network terminal devices, including but not limited to a Beidou short message communication terminal module and a mobile network communication terminal module, so that communication with a remote automobile manager can be realized directly through a mobile network in an area covered by mobile network signals; and in areas where there is no coverage of wireless network signals, or where public mobile networks cannot be used for some reason, communication between the car and a remote car manager can be achieved through satellites, particularly the Beidou system. See FIG. 2
The vehicle-mounted management unit is connected with a display screen unit with input and output functions, the display screen unit is provided with an electronic map and is connected with a GPS positioning module, and the video unit can be an existing navigator on an automobile. The vehicle-mounted management unit can realize wireless communication with other LDSW low-power-consumption Internet of things terminal equipment and gateway equipment which work in the same channel and channel (the same coding and modulation modes) through two LDSW wireless communication systems on the vehicle and also work in the low-duty-cycle working mode; the method comprises the steps of remotely and low-power-consumption wireless communication between the LDSW emergency communication system and an artificial intelligent interphone or other LDSW low-frequency remote emergency communication terminals; the vehicle-mounted management unit performs wireless communication with other vehicle driving and driving related traffic management equipment outside the vehicle through an LDSW high-frequency wireless communication system (including an LDSW low-power-consumption intelligent terminal connected with a communication object), and besides the wireless communication with various controlled equipment and sensors on the vehicle including but not limited to a door lock, a wireless vehicle key, various control signal lamps, an intelligent frequency spectrum sensor, an acceleration sensor and a tire pressure sensor, and related to driving of the vehicle, the vehicle-mounted management unit also can perform communication with other vehicle driving and driving related traffic management equipment outside the vehicle including but not limited to an LDSW active electronic reader-writer and various sensors and controlled equipment connected with an LDSW active electronic tag.
The definition of the LDSW low-power-consumption internet of things terminal is needed to be described here, and the LDSW internet of things intelligent terminal is the low-power-consumption internet of things intelligent terminal or LDSW active electronic tag (LDSW tag for short hereinafter) working in a low duty ratio working mode, and the LDSW tag reader-writer and other devices matched with the LDSW active electronic tag. The basic working characteristics are as follows: the LDSW label is normally in a low power consumption state of monitoring a signal from an LDSW label reader-writer for a moment after periodic sleep and wake-up; the method for monitoring signals comprises the steps of firstly arranging a very short fixed monitoring time window, detecting whether the radio frequency characteristics of the received signals meet the basic requirements of the two parties for establishing wireless communication, including frequency, modulation mode, coding mode and the like, and only when the radio frequency characteristics of the monitored signals meet the requirements of part or all of the wireless communication, the LDSW label can prolong the receiving time and enter the stage of receiving a complete digital signal packet and analyzing and unpacking; any one of the LDSW low-power-consumption internet of things equipment comprises an LDSW tag reader-writer or an LDSW tag, and can continuously, uninterrupted and repeatedly transmit a data signal packet on an LDSW tag signal monitoring channel as a communication object in a period of time longer than the sleep and wake-up period of the LDSW tag as the communication object, grasp the LDSW tag of the communication object, and establish communication connection with the LDSW tag after sleeping and wake-up at the moment of monitoring signals; the LDSW artificial intelligent interphone is an LDSW low-power-consumption Internet of things communication device which is in a Sub-G frequency band and normally adopts an LDSW label low-duty-cycle working mode.
LDSW tags are normally in a periodic sleep state, listening for a transient low power state from the active electronic tag reader-writer signal after waking up. The method for monitoring the signal is to firstly arrange a very short fixed monitoring time window and detect whether the radio frequency characteristics of the received signal meet part or all of basic requirements, including frequency, modulation mode, coding mode and the like, required by the two parties to establish wireless communication. Only when the radio frequency characteristics of the monitored signals meet the requirements of part or all of the wireless communication, the LDSW label can prolong the receiving time and enter the stage of receiving a complete digital signal and analyzing and unpacking. The LDSW artificial intelligent interphone is an LDSW low-power-consumption Internet of things communication device which is in a Sub-G frequency band and normally adopts an LDSW intelligent tag low-duty-cycle working mode. For a detailed description of the LDSW internet of things device, reference may be made to the content of the CCSA "low duty cycle internet of things intelligent terminal communication technical requirement" standard.
Because the mode of monitoring signals by the LDSW label is very power-saving, and the working mode of the LDSW label read-write system adopting the CCSA unified technical standard is also very flexible and is not limited by frequency, the LDSW low-power-consumption internet-of-things narrowband communication system greatly improves the internal-to-external communication capability of the existing automobile and reduces the manufacturing cost and the maintenance cost of the automobile.
In addition, the automobile provided with the Beidou short message communication module is a motor-driven emergency disaster relief communication base station which can be contacted with the outside through the short message. The system can quickly construct an emergency disaster relief communication system capable of realizing short voice and text communication within a radius range of 5 km or more and transmitting information to a far place in a short message mode by utilizing a simple LDSW artificial intelligent interphone, including an LDSW artificial intelligent interphone converted by using an LDSW mobile phone back clip and a general intelligent mobile phone, around the automobile mobile emergency disaster relief communication base station, no matter the system is opened to places without mobile network signal coverage, including remote areas and first lines of disaster relief. Meanwhile, the automobile motor-driven emergency disaster relief base station can collect and control various sensors and controlled equipment which are connected with the LDSW low-power-consumption intelligent terminal around the automobile motor-driven emergency disaster relief base station according to the requirements. The actual communication distance between the automobile mobile emergency disaster relief base station and the LDSW artificial intelligent interphone and the LDSW label depends on a plurality of factors including the antenna installation positions of the two communication parties, the antenna gain, the transmitting power and the receiving sensitivity of the transceiver and the like. Because the automobile has sufficient power supply, and a high-gain antenna with larger transmitting power transmitter and larger size can be easily established, a mobile emergency disaster relief communication base station with larger signal coverage area can be easily and quickly established; the LDSW back clip module is simple and detachable, so that a large number of general smart phones can be immediately converted into LDSW artificial intelligent interphones, and a low-cost emergency disaster relief communication system is quickly established.
When several vehicles equipped with the LDSW narrowband wireless communication system form a fleet, each vehicle will be temporarily assigned a sequence number belonging only to the fleet. When the fleet responsible person needs to know the front and rear positions of each vehicle in the fleet during the whole driving process of the fleet, the fleet responsible person needs to inform each vehicle to start one corresponding vehicle through the LDSW narrowband wireless communication system (when no network signal exists) or the mobile network (when a network signal exists), and broadcast the self ID or the sequence number, GPS coordinate position information and the time of broadcasting and transmitting the information to other vehicles of the fleet and the same information sent by other vehicles of the fleet already received by the fleet responsible person at regular time according to the sequence of the respective sequence number and the preset time interval and the broadcasting times. If any one car in the motorcade receives any other car in the motorcade, when multiple groups of information are sequentially sent at different times, only the latest group of information sent by any other car is broadcasted every time when the information is broadcasted outwards.
The timing here, broadcasting the required synchronization time to other vehicles of the fleet, is achieved through the narrowband wireless communication system or the mobile communication network, or the GPS module. The preset broadcasting times are used for ensuring the responsible person of the motorcade, clearly knowing the front and back positions of all vehicles in the motorcade in the current driving process of the motorcade, the distance between the vehicles, and the like, and carrying out manual or automatic driving control on each vehicle of the whole motorcade according to the data through the vehicle-mounted management unit and the narrow-band wireless communication system (when no mobile network signal exists) or the mobile network (when the network signal exists), so as to better complete the trip task of the motorcade.
Here we take an automobile as an example to teach our patented technology. In practice, the motorcade can be a tank cluster running on a battlefield, a water surface motorcade or other mobile electromechanical equipment cluster. Among the sensors that they are connected through the high frequency wireless communication system, there are also intelligent spectrum sensors that are installed at different locations of the car for measuring vibration conditions of different parts of the car, and other sensors that can reflect the operating conditions of the car. These smart spectrum sensors convert the measured vibration signal into a relatively simple vibration spectrum by in-situ fourier transformation. These vibration spectra measured at different locations, along with other relevant sensor data, will be transmitted to the on-board management unit; and the vehicle-mounted management unit is also provided with software which is used for analyzing the running state of the vehicle according to the information. The software can rapidly diagnose whether the automobile is in a normal working state or not through analysis of the data. If the diagnosis result is abnormal and comprises a specific working unit with abnormal conditions, the vehicle-mounted management unit can immediately transmit the analysis result or related data to a field fleet command center through a narrow-band communication system, or transmit the analysis result or related data to a remote command control center through the Beidou short message communication terminal or the mobile network communication terminal, or directly adjust the related working unit of the vehicle according to a preset working program through a high-frequency narrow-band communication system of the vehicle. See FIG. 3
The vehicle-mounted management unit in the automobile is also connected with one or more sensors capable of reflecting collision traffic accidents of the automobile, including but not limited to an acceleration sensor, and is used for judging whether the automobile has collision traffic accidents or not, and when the automobile has collision traffic accidents, the vehicle-mounted management unit sends information related to accident handling such as self ID, GPS position coordinates, contact phones and the like to a traffic management background by utilizing a self LDSW narrowband communication system and a network communication terminal; and the LDSW electronic tag in the accident warning signal lamp is awakened step by using the LDSW tag to start other warning signal lamps to flash in a certain distance range in the coming direction of the accident point. Whereas the road here refers more to a highway. The road side warning signal lamp can be provided with two communication modules, namely an LDSW narrow-band Sub-G long-distance communication module and a high-frequency communication module. See fig. 4.
Benefits brought by the invention
As described above, the present invention provides a particularly viable solution to the problems of the existing automobiles in terms of use, manufacturing and after-sales maintenance, and intelligent driving, and thus has great social and economic significance.
Drawings
Fig. 1 is an LDSW narrowband wireless communication system architecture for automotive management.
FIG. 2 illustrates an automotive-based LDSW emergency rescue communication system.
Fig. 3 utilizes an LDSW system to realize remote monitoring of the operating conditions of the car.
Fig. 4 utilizes an LDSW system to realize automatic alarm and warning of car accidents.
Claims (8)
1. A vehicle-mounted LDSW narrowband wireless communication system for automobile management is arranged on an automobile and provided with a unique identity number; the system comprises a Sub-G low frequency wireless communication system which is independent of the existing mobile network and is specially used for carrying out long-distance communication with other vehicles and personnel, and a high frequency wireless communication system which is connected with various sensors and controlled devices in the automobile in a wireless communication mode; the frequency used by the high-frequency wireless communication system is in favor of realizing communication under the environment condition that various narrow gaps are needed to pass through in a vehicle, including but not limited to using a 2.4G frequency band, and preferably adopting a spread spectrum coding wireless communication technology; the two communication systems are connected with a vehicle-mounted management unit; the vehicle-mounted management unit can be connected with one or more network terminal devices, including but not limited to a Beidou short message communication terminal and a mobile network communication terminal; the vehicle-mounted management unit is connected with a display screen unit with input and output functions; the display screen unit is also provided with an electronic map and is connected with a GPS positioning module; the vehicle-mounted management unit can realize wireless communication with other LDSW low-power-consumption Internet of things terminal equipment and gateway equipment which work in a low-duty-cycle working mode on the same frequency channel and the same channel through the two wireless communication systems, and comprises long-distance low-power-consumption wireless communication with an artificial intelligent interphone in the LDSW emergency communication system or other LDSW low-frequency long-distance emergency communication terminals; the vehicle-mounted management unit can communicate with other traffic management devices related to vehicle driving and running outside the vehicle, including but not limited to communication between an LDSW active electronic reader-writer and an active electronic tag, in addition to wireless communication with various controlled devices and sensors including but not limited to a door lock, a wireless vehicle key, various control signal lamps, an intelligent frequency spectrum sensor, an acceleration sensor, a tire pressure sensor and related to vehicle driving of the vehicle through a high-frequency wireless communication system.
2. The device of claim 1, wherein the LDSW low power consumption internet of things device is an internet of things low power consumption communication device meeting the standard requirements of CCSA "low duty cycle internet of things intelligent terminal communication requirements"; the LDSW intelligent terminals are actually LDSW tags, and are normally in a low-power consumption state in which signals from the active electronic tag gateway reader-writer are monitored for a moment after periodic sleep and wake-up; the method for monitoring the signal comprises the steps of firstly arranging a very short fixed monitoring time window, detecting whether the radio frequency characteristics of the received signal meet part or all of basic requirements for wireless communication establishment of both parties, including frequency, modulation mode, coding mode and the like, and enabling the active electronic tag to prolong the receiving time and enter a stage of receiving a complete digital signal packet and analyzing and unpacking only when the radio frequency characteristics of the monitored signal meet part or all of the wireless communication requirements; any one of the LDSW low-power-consumption internet of things equipment comprises an LDSW label reader-writer or an LDSW label, and can continuously, uninterrupted and repeatedly transmit a data signal packet on a signal monitoring channel of an LDSW label of a communication object in a period of time longer than the sleep and wake-up period of the LDSW label of the communication object, grasp the LDSW label of the communication object, and establish communication connection with the LDSW label of the communication object at the moment of monitoring signals after sleeping and wake-up; the LDSW artificial intelligent interphone is an LDSW low-power-consumption Internet of things communication device which is in a Sub-G frequency band and normally adopts an LDSW label low-duty-cycle working mode.
3. The system according to claim 1 or 2, wherein the vehicle-mounted management unit is further connectable to one or more network terminal devices, that is, the vehicle-mounted management unit is connected to remote personnel or units related to the vehicle by network communication through a beidou short message communication module or a mobile network communication module mainly used for narrowband communication of the internet of things, including but not limited to a CAT1 mobile communication module; the Beidou short message communication module is only used when the vehicle arrives at an area without mobile network signal coverage or the mobile network communication module cannot be used for other reasons.
4. A car equipped with the Beidou short message communication module is a mobile emergency disaster relief communication base station which can be contacted with the outside through a short message according to claim 1,2 or 3; whether it is open to any location where there is no coverage by mobile network signals, including remote areas and disaster relief first lines; the simple LDSW artificial intelligent interphone comprises an LDSW artificial intelligent interphone converted by using an LDSW mobile phone back clip and a general smart phone, so that an emergency disaster relief communication system which can realize short voice and text communication within a radius range of 5 km or more and can transmit information to a far place in a short message mode can be quickly constructed around the automobile power emergency disaster relief communication base station; meanwhile, the automobile maneuvering emergency disaster relief base station can collect and control various sensors and controlled equipment which are connected with the LDSW low-power-consumption intelligent terminal around the automobile maneuvering emergency disaster relief base station according to the requirements; the actual communication distance between the automobile motor-driven emergency disaster relief base station and the LDSW artificial intelligent interphone and the LDSW low-power consumption intelligent terminal depends on a plurality of factors including the antenna installation positions of the two communication parties including the automobile motor-driven emergency disaster relief base station, the antenna gain, the transmitting power and the receiving sensitivity of the transceiver and the like.
5. A method according to claim 1,2 or 3, characterized in that when several vehicles equipped with said narrowband wireless communication system form a fleet, each vehicle will be temporarily assigned a sequence number belonging only to this fleet; when the fleet responsible person needs to know the front and rear positions of each vehicle in the fleet in the whole driving process of the fleet, the fleet responsible person needs to inform each vehicle to start one corresponding vehicle according to the sequence of the sequence number and the preset time interval and broadcasting times through the narrow-band wireless communication system or other communication means, and regularly broadcasts own ID or sequence number, GPS coordinate position information and broadcasting time for transmitting the information to other vehicles of the fleet and the same information sent by other vehicles of the fleet already received by the fleet responsible person; if the vehicle receives multiple groups of information sent by the same vehicle in a vehicle team at different times, only broadcasting the latest group of information sent by the same vehicle every time the vehicle broadcasts information outwards; the timing of broadcasting the required synchronization time to other vehicles of the motorcade is realized through the narrow-band wireless communication system or the GPS module; the preset broadcasting times are used for ensuring that the responsible person of the motorcade can clearly know the front and back positions of each vehicle in the motorcade in the whole driving process of the motorcade, the distance between the vehicles and the other vehicles and the like; according to the data, each vehicle of the whole motorcade can be manually or automatically controlled to travel through the vehicle-mounted management unit and the narrow-band wireless communication system, so that the trip task of the motorcade can be better completed.
6. A car as claimed in claim 1,2, 3, 4 or 5, wherein said car is in fact a tank on a battlefield, a surface vessel or other mobile electromechanical equipment; among the sensors connected through the high-frequency wireless communication system, the intelligent frequency spectrum sensor installed at different positions of the automobile for measuring the vibration conditions of different parts of the automobile and other sensors capable of reflecting the working conditions of the automobile are also included; the intelligent frequency spectrum sensor converts the measured vibration signals into a relatively simple vibration frequency spectrum through Fourier transformation, and the vibration frequency spectrums measured at different positions are transmitted to the vehicle-mounted management unit together with other related sensor data; the vehicle-mounted management unit is also provided with software which is used for analyzing the running state of the vehicle according to the information; the software can rapidly diagnose whether the automobile is in a normal working state or not through analysis of the data; if the diagnosis result is abnormal and comprises a specific working unit with abnormal conditions, the vehicle-mounted management unit can immediately transmit the analysis result or related data to a field fleet command center through a narrow-band communication system, or transmit the analysis result or related data to a remote command control center through the Beidou short message communication terminal or the mobile network communication terminal, or directly adjust the related working unit of the vehicle according to a preset working program through a high-frequency narrow-band communication system of the vehicle.
7. The system of claim 1, wherein the vehicle-mounted management unit is further coupled to one or more sensors reflecting a crash traffic accident of the vehicle, including but not limited to an acceleration sensor, for determining whether the vehicle has a crash accident; when the vehicle collides with a traffic accident, the vehicle-mounted management unit sends information related to accident handling such as self ID, GPS position coordinates, contact phones and the like to a traffic management background by utilizing a self LDSW narrowband communication system and a network communication terminal; and the LDSW electronic tag in the accident warning signal lamp is awakened step by using the LDSW tag to start other warning signal lamps to flash in a certain distance range in the coming direction of the accident point. Whereas the road here refers more to a highway. The road side warning signal lamp can be provided with two communication modules, namely an LDSW narrow-band Sub-G long-distance communication module and a high-frequency communication module.
8. An on-vehicle LDSW narrowband wireless communication method for automotive management, the method involving two different frequency LDSW narrowband communication systems: a Sub-G low frequency communication system adapted for long distance transmission under no mobile network signal coverage environment conditions, and a high frequency short range wireless communication system adapted for wireless communication environment conditions inside an automobile; the Sub-G low-frequency communication system is specially used for carrying out long-distance low-power consumption communication with other vehicles and personnel; the high-frequency short-distance wireless communication system is mainly used for connecting various sensors and controlled devices in an automobile in a wireless communication mode, the used frequency is in favor of realizing communication under the environment condition that various narrow gaps are needed to pass through in the automobile, the high-frequency short-distance wireless communication system comprises but not limited to using a 2.4G frequency band, and a spread spectrum coding wireless communication technology is preferably adopted to reduce the influence of multipath effect; the two communication systems are connected with the vehicle-mounted management unit; the vehicle-mounted management unit can also ensure communication connection with the outside under any condition through one or more terminals including but not limited to a general mobile network communication terminal and a Beidou short message terminal; the vehicle-mounted management unit performs related operations through a screen unit with input/output display functions and satellite positioning functions; the two LDSW narrowband communication systems with different frequencies can realize wireless communication with other LDSW low-power-consumption Internet of things terminal equipment working in a low-duty-cycle working mode on the same frequency channel and the same channel; the automobile can always keep communication with the outside even in places without network signal coverage through the communication between the low-frequency narrow-band communication system and the vehicle-mounted management unit and the artificial intelligent interphone in the LDSW emergency communication system as well as other LDSW low-frequency long-distance emergency communication terminals; the high-frequency narrow-band communication system and the vehicle-mounted management unit are communicated with various sensors and controlled equipment in the vehicle to realize control and management of various facilities in the vehicle; the relationship between the vehicle and urban road traffic management while traveling is coordinated by communication between the high-frequency narrowband communication system and an on-board management unit and other traffic management devices outside related to vehicle driving and traveling.
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| CN202310313477.4A CN116321060A (en) | 2023-03-28 | 2023-03-28 | Vehicle-mounted LDSW narrowband wireless communication system for automobile management and working method |
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| CN202310313477.4A CN116321060A (en) | 2023-03-28 | 2023-03-28 | Vehicle-mounted LDSW narrowband wireless communication system for automobile management and working method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118053426A (en) * | 2024-04-16 | 2024-05-17 | 深圳市轻生活科技有限公司 | Interconnection mutual control intelligent wireless switch and off-line voice control system thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118053426A (en) * | 2024-04-16 | 2024-05-17 | 深圳市轻生活科技有限公司 | Interconnection mutual control intelligent wireless switch and off-line voice control system thereof |
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