CN111417095A - Low-power-consumption communication method, device and equipment - Google Patents
Low-power-consumption communication method, device and equipment Download PDFInfo
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- CN111417095A CN111417095A CN202010227004.9A CN202010227004A CN111417095A CN 111417095 A CN111417095 A CN 111417095A CN 202010227004 A CN202010227004 A CN 202010227004A CN 111417095 A CN111417095 A CN 111417095A
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- 238000004891 communication Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000007958 sleep Effects 0.000 claims abstract description 14
- 230000002618 waking effect Effects 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000004590 computer program Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000005059 dormancy Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Classifications
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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]
- H04W4/48—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for in-vehicle communication
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
- G07B15/00—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
- G07B15/06—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
- H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
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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
Abstract
The embodiment of the invention discloses a low-power-consumption communication method, a low-power-consumption communication device and low-power-consumption communication equipment, which relate to the field of electronic toll collection and comprise the following steps: when a receiving and transmitting chip of the vehicle-mounted unit detects a wake-up signal sent by the road side unit, the receiving and transmitting chip and a control unit of the vehicle-mounted unit are woken up; after the control unit is awakened, the vehicle-mounted unit and the road side unit carry out electronic toll collection; after the electronic toll collection is finished, controlling the transceiver chip and the control unit to sleep; when the receiving and sending chip is in a dormant state, the receiving and sending chip is not communicated with the control unit, and a receiving module of the receiving and sending chip is started to receive the awakening signal through the receiving module. According to the invention, the low-power consumption technology is adopted for the transmitting and receiving chip and the control module of the OBU, so that the power consumption of the equipment can be greatly reduced, and the sudden increase of the volume of the equipment caused by using a large-capacity battery is further avoided.
Description
Technical Field
The embodiment of the invention relates to the field of Electronic Toll Collection (ETC), in particular to a low-power-consumption communication method, device and equipment.
Background
Currently, devices used by highway ETC On vehicles include On Board Units (OBUs) and Compound traffic cards (CPCs). Generally, the main power supply mode of the OBU is battery power supply, and there are also capacitor + battery power supply modes. The mainstream power supply for CPCs is battery powered.
In general, the on-board unit needs to guarantee a service life of 3 years or more. The battery is used as a main power supply mode, and if a high-capacity disposable battery is selected, the volume of the battery is greatly improved; this can lead to increased costs if a rechargeable battery is selected and then additional charging is facilitated.
Disclosure of Invention
The embodiment of the invention aims to provide a low-power-consumption communication method, device and equipment, which are used for solving the problems of high power consumption and large volume of a large-capacity battery of the conventional vehicle-mounted unit.
In order to achieve the above object, the embodiments of the present invention mainly provide the following technical solutions:
in a first aspect, an embodiment of the present invention provides a low power consumption communication method, including: when a receiving and transmitting chip of the vehicle-mounted unit detects a wake-up signal sent by the road side unit, the receiving and transmitting chip and a control unit of the vehicle-mounted unit are woken up; after the control unit is awakened, the vehicle-mounted unit and the road side unit carry out electronic toll collection; after the electronic toll collection is finished, controlling the transceiver chip and the control unit to sleep; when the receiving and sending chip is in a dormant state, the receiving and sending chip is not communicated with the control unit, and a receiving module of the receiving and sending chip is started to receive the awakening signal through the receiving module.
According to one embodiment of the invention, the wake-up signal is generated by modulating on a 5.8GHz carrier wave in an OOK manner.
According to an embodiment of the present invention, when a transceiver chip of an on-board unit detects a wake-up signal sent by a road side unit, a control unit for waking up the on-board unit includes: and after detecting the characteristic waveform of the square wave of the target frequency, the transceiver chip sends a starting signal to the control unit so as to wake up the control unit.
According to one embodiment of the invention, the target frequency is 14 KHz.
In a second aspect, an embodiment of the present invention further provides a communication apparatus with low power consumption, including: the communication unit comprises an antenna and a transceiver chip, and the transceiver chip is used for waking up the transceiver chip and the control unit when a wake-up signal sent by the road side unit is detected; the control unit is used for controlling the vehicle-mounted unit and the road side unit to carry out electronic toll collection after being awakened, and controlling the transceiver chip and the control unit to sleep after the electronic toll collection is finished; when the receiving and sending chip is in a dormant state, the receiving and sending chip is not communicated with the control unit, and a receiving module of the receiving and sending chip is started to receive the awakening signal through the receiving module.
According to one embodiment of the invention, the wake-up signal is generated by modulating on a 5.8GHz carrier wave in an OOK manner.
According to one embodiment of the invention, the transceiver chip sends a start signal to the control unit to wake up the control unit after detecting the characteristic waveform of the square wave of the target frequency.
According to one embodiment of the invention, the target frequency is 14 KHz.
In a third aspect, an embodiment of the present invention further provides an electronic device, including: at least one processor and at least one memory; the memory is to store one or more program instructions; the processor is configured to execute one or more program instructions to perform the low power communication method according to the first aspect.
In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium containing one or more program instructions for being executed to perform the communication method with low power consumption according to the first aspect.
The technical scheme provided by the embodiment of the invention at least has the following advantages:
according to the low-power-consumption communication method, device and equipment provided by the embodiment of the invention, the low-power-consumption technology is adopted for the transceiving chip and the control module of the OBU, the transceiving chip can receive the wake-up signal sent by the RSU in the sleep mode but does not communicate with other modules of the OBU, the transceiving chip wakes up the transceiving chip and the control module after receiving the wake-up signal, and the transceiving chip and the control module enter the sleep mode after ETC charging is finished, so that the power consumption of the equipment can be greatly reduced, and the sudden increase of the volume of the equipment caused by using a large-capacity battery is avoided.
Drawings
Fig. 1 is a flowchart of a communication method with low power consumption according to an embodiment of the present invention.
Fig. 2 is a block diagram of a communication device with low power consumption according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
In the following description, for purposes of explanation and not limitation, specific details are set forth such as particular system structures, interfaces, techniques, etc. in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
In the description of the present invention, it is to be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as meaning directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Fig. 1 is a flowchart of a communication method with low power consumption according to an embodiment of the present invention. As shown in fig. 1, a communication method with low power consumption according to an embodiment of the present invention includes:
s0: the receiving and transmitting chip and the control unit of the vehicle-mounted unit are both in a dormant state. The receiving and sending chip is not communicated with the control unit when in dormancy, and a receiving module of the receiving and sending chip is started to receive the awakening signal through the receiving module.
Specifically, the receiving module includes an antenna and a corresponding circuit, the antenna is connected to the transceiver chip through the circuit, and the transceiver chip can receive the wake-up signal sent by the road side unit through the antenna when the transceiver chip is in a sleep state. The transceiver chip and the control module are in a dormant state at ordinary times. The Control module may adopt a Micro Control Unit (MCU). In an embodiment of the invention, the OBU further comprises a security module for storing OBU related information. The OBU related information comprises a key, vehicle information and entrance and exit information. The key is used for the control module to perform security authentication on the OBU and the RSU. Illustratively, the key algorithm may employ 3DES, RNA, or SM4, among other algorithms.
S1: when the transmitting and receiving chip of the OBU detects the awakening signal sent by the RSU, the transmitting and receiving chip and the control unit of the OBU are awakened.
Specifically, after detecting the characteristic waveform of the square wave of the target frequency, the transceiver chip sends a start signal to the control unit to wake up the control unit. Illustratively, the target frequency is 14 KHz.
In an embodiment of the present invention, the wake-up signal sent by the RSU is generated by modulating On-Off Keying (OOK) On a 5.8GHz carrier. OOK, also known as binary amplitude keying (2ASK), uses unipolar non-return-to-zero code sequence to control the on and off of sinusoidal carrier, and has the advantages of simple modulation mode and low energy consumption. S2: and after the control unit is awakened, the OBU and the RSU carry out electronic toll collection.
Specifically, when the RSU system receives the OBU start message, it will issue the corresponding fee deduction or identification information to the OBU. When the OBU receives the complete fee deduction information of the RSU, fee deduction is carried out.
S3: and after the electronic toll collection is finished, controlling the transceiver chip and the control unit to sleep. The OBU closes the data receiving and sending after the successful fee deduction and automatically enters the sleep mode, so that the power consumption can be reduced by reducing the no-load receiving and sending loss of the radio frequency chip, the energy is utilized to the maximum extent, the battery management unit is simplified, and the maintenance of the ETC system is facilitated.
According to the low-power-consumption communication method, the low-power-consumption technology is adopted for the transceiving chip and the control module of the OBU, the transceiving chip can receive the wake-up signal sent by the RSU in the sleep mode but does not communicate with other modules of the OBU, the transceiving chip wakes up the transceiving chip and the control module after receiving the wake-up signal, and the transceiving chip and the control module enter the sleep mode after ETC charging is completed, so that the power consumption of equipment can be greatly reduced, and the sudden increase of the volume of the equipment caused by the use of a large-capacity battery is avoided.
Fig. 2 is a block diagram of a communication device with low power consumption according to an embodiment of the present invention. As shown in fig. 2, a communication apparatus with low power consumption according to an embodiment of the present invention includes: a communication unit 100 and a control unit 200. The communication device with low power consumption is arranged in the OBU, and the OBU also comprises a storage module for storing relevant information of the OBU, which can be understood by the person skilled in the art. The OBU may further comprise a tamper module for detecting if the OBU is tampered with.
The communication unit 100 includes an antenna and a transceiver chip, and the transceiver chip is configured to wake up the transceiver chip and the control unit 200 when detecting a wake-up signal sent by the road side unit.
The control unit 200 is used for controlling the vehicle-mounted unit and the road side unit to perform electronic toll collection after being awakened, and controlling the transceiver chip and the control unit 200 to sleep after the electronic toll collection is completed. The transceiver chip does not communicate with the control unit 200 when it is in sleep, and the receiving module of the transceiver chip is turned on to receive the wake-up signal through the receiving module.
In one embodiment of the present invention, the wake-up signal is generated by modulating a 5.8GHz carrier wave in an OOK manner.
In an embodiment of the present invention, after detecting the characteristic waveform of the square wave of the target frequency, the transceiver chip sends a start signal to the control unit to wake up the control unit.
In one embodiment of the present invention, the target frequency is 14 KHz.
It should be noted that, the specific implementation of the low-power communication apparatus in the embodiment of the present invention is similar to the specific implementation of the low-power communication method in the embodiment of the present invention, and specific reference is specifically made to the description of the low-power communication method, and details are not repeated for reducing redundancy.
In addition, other configurations and functions of the communication device with low power consumption according to the embodiment of the present invention are known to those skilled in the art, and are not described in detail for reducing redundancy.
An embodiment of the present invention further provides an electronic device, including: at least one processor and at least one memory; the memory is to store one or more program instructions; the processor is configured to execute one or more program instructions to perform the low power communication method as described above.
The disclosed embodiments of the present invention provide a computer-readable storage medium having stored therein computer program instructions that, when run on a computer, cause the computer to perform the above-described low-power communication method.
In an embodiment of the invention, the processor may be an integrated circuit chip having signal processing capability. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete Gate or transistor logic device, discrete hardware component.
The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The processor reads the information in the storage medium and completes the steps of the method in combination with the hardware.
The storage medium may be a memory, for example, which may be volatile memory or nonvolatile memory, or which may include both volatile and nonvolatile memory.
The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory.
By way of example and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous link DRAM (Synch L ink DRAM, S L DRAM), and Direct Rambus RAM (DRRAM).
The storage media described in connection with the embodiments of the invention are intended to comprise, without being limited to, these and any other suitable types of memory.
Those skilled in the art will appreciate that the functionality described in the present invention may be implemented in a combination of hardware and software in one or more of the examples described above. When software is applied, the corresponding functionality may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the present invention should be included in the scope of the present invention.
Claims (10)
1. A communication method with low power consumption, comprising:
when a receiving and transmitting chip of the vehicle-mounted unit detects a wake-up signal sent by the road side unit, the receiving and transmitting chip and a control unit of the vehicle-mounted unit are woken up;
after the control unit is awakened, the vehicle-mounted unit and the road side unit carry out electronic toll collection;
after the electronic toll collection is finished, controlling the transceiver chip and the control unit to sleep;
when the receiving and sending chip is in a dormant state, the receiving and sending chip is not communicated with the control unit, and a receiving module of the receiving and sending chip is started to receive the awakening signal through the receiving module.
2. The communication method with low power consumption as claimed in claim 1, wherein the wake-up signal is generated by modulating on a 5.8GHz carrier in an OOK manner.
3. The communication method with low power consumption according to claim 2, wherein the step of waking up the control unit of the vehicle-mounted unit when the transceiver chip of the vehicle-mounted unit detects the wake-up signal sent by the road side unit comprises:
and after detecting the characteristic waveform of the square wave of the target frequency, the transceiver chip sends a starting signal to the control unit so as to wake up the control unit.
4. The communication method with low power consumption according to claim 3, wherein the target frequency is 14 KHz.
5. A communication device with low power consumption, comprising:
the communication unit comprises an antenna and a transceiver chip, and the transceiver chip is used for waking up the transceiver chip and the control unit when a wake-up signal sent by the road side unit is detected;
the control unit is used for controlling the vehicle-mounted unit and the road side unit to carry out electronic toll collection after being awakened, and controlling the transceiver chip and the control unit to sleep after the electronic toll collection is finished;
when the receiving and sending chip is in a dormant state, the receiving and sending chip is not communicated with the control unit, and a receiving module of the receiving and sending chip is started to receive the awakening signal through the receiving module.
6. The communication device with low power consumption as claimed in claim 5, wherein the wake-up signal is generated by modulating on a 5.8GHz carrier in an OOK manner.
7. The communication device with low power consumption according to claim 6, wherein the transceiver chip sends a start signal to the control unit to wake up the control unit after detecting the characteristic waveform of the square wave of the target frequency.
8. The low power consumption communication device according to claim 7, wherein the target frequency is 14 KHz.
9. An electronic device, characterized in that the electronic device comprises: at least one processor and at least one memory;
the memory is to store one or more program instructions;
the processor, configured to execute one or more program instructions to perform the low power communication method according to any one of claims 1 to 4.
10. A computer-readable storage medium having one or more program instructions embodied therein for performing the low power consumption communication method of any one of claims 1-4.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010227004.9A CN111417095A (en) | 2020-03-27 | 2020-03-27 | Low-power-consumption communication method, device and equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010227004.9A CN111417095A (en) | 2020-03-27 | 2020-03-27 | Low-power-consumption communication method, device and equipment |
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| CN111417095A true CN111417095A (en) | 2020-07-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112203255A (en) * | 2020-09-11 | 2021-01-08 | 北京万集科技股份有限公司 | Control method and system for on-board unit, storage medium, and electronic apparatus |
| CN114079854A (en) * | 2020-08-17 | 2022-02-22 | 华为技术有限公司 | Low power consumption method of C-V2X, electronic equipment and chip system |
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| CN102833826A (en) * | 2011-06-15 | 2012-12-19 | 何德昌 | DSRC (dedicated short range communication) system vehicle-mounted terminal capable of sleeping intelligently and method for making DSRC system vehicle-mounted terminal sleep intelligently |
| CN104507146A (en) * | 2014-11-28 | 2015-04-08 | 东莞中国科学院云计算产业技术创新与育成中心 | Low-power-consumption system and method for realizing vehicle-road communication |
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2020
- 2020-03-27 CN CN202010227004.9A patent/CN111417095A/en active Pending
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| CN102082587A (en) * | 2009-12-01 | 2011-06-01 | 中兴通讯股份有限公司 | Data communication method and system of vehicle-mounted unit |
| CN102833826A (en) * | 2011-06-15 | 2012-12-19 | 何德昌 | DSRC (dedicated short range communication) system vehicle-mounted terminal capable of sleeping intelligently and method for making DSRC system vehicle-mounted terminal sleep intelligently |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114079854A (en) * | 2020-08-17 | 2022-02-22 | 华为技术有限公司 | Low power consumption method of C-V2X, electronic equipment and chip system |
| CN112203255A (en) * | 2020-09-11 | 2021-01-08 | 北京万集科技股份有限公司 | Control method and system for on-board unit, storage medium, and electronic apparatus |
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Application publication date: 20200714 |