CN111277285A - Radio frequency chip signal receiving method, device and system - Google Patents
Radio frequency chip signal receiving method, device and system Download PDFInfo
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- 230000007958 sleep Effects 0.000 claims abstract description 17
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- 230000004622 sleep time Effects 0.000 claims abstract description 7
- 238000001514 detection method Methods 0.000 claims description 28
- 238000004891 communication Methods 0.000 claims description 24
- 230000005059 dormancy Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000011664 signaling Effects 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 4
- 230000035945 sensitivity Effects 0.000 description 5
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- 238000005516 engineering process Methods 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
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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
- H04B1/06—Receivers
- H04B1/16—Circuits
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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
- H04W52/0248—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal dependent on the time of the day, e.g. according to expected transmission activity
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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 embodiment of the invention discloses a method, a device and a system for receiving radio frequency chip signals, wherein the method comprises the following steps: configuring through a host program in advance, and setting a sleep period and a self-awakening period of the radio frequency chip; when the elapsed sleep time reaches a time threshold corresponding to the sleep cycle, triggering the radio frequency chip to execute a self-awakening operation; after the radio frequency chip is awakened automatically, controlling the radio frequency chip to enter a receiving mode; detecting whether effective receiving signals exist or not based on a preset state control module; if the effective receiving signal exists, an interrupt signal is output to the host, and the host is awakened to execute subsequent transaction processing operation. The method of the invention can greatly reduce the electric quantity waste caused by false awakening and asymmetry, is convenient for improving the success rate of the segmented charging on a highway and reduces the economic loss caused by the missing fee.
Description
Technical Field
The embodiment of the invention relates to the technical field of intelligent Internet of things communication, in particular to a radio frequency chip signal receiving method, device and system, and further relates to a computer readable storage medium.
Background
With the rapid development of networks and technologies, the technology of the intelligent internet of things is gradually perfected and matured, and especially, an Electronic Toll Collection (ETC) system is widely applied to the field of automobile traffic Toll Collection. The automatic electronic toll collection system for highway, bridge and tunnel adopts automatic vehicle identification technology to complete the radio data communication between vehicle and toll station, and makes automatic vehicle induction identification and relevant toll data exchange, and based on computer network to process toll data so as to implement automatic electronic toll collection system without stopping vehicle and setting toll window.
At present, two types of vehicle-mounted terminals are commonly used in a full-automatic electronic toll collection system, namely an obu (on board unit) and a cpc (compound Pass card). For CPC and OBU, when passing through the high-speed portal, the wake-up signal sent by the roadside antenna is received, and after the wake-up signal wakes up, the radio frequency chip is enabled and the transaction signal is received. However, since the CPC is placed in the vehicle at an indefinite place and the vehicle speed is over 100km, in order to increase the transaction success rate, a higher receiving sensitivity is required to ensure that the CPC can be awakened by the awakening signal. And after the CPC is awakened, returning the vehicle information to the antenna, and waiting for the antenna to reply for subsequent transaction. For a supplier of CPC equipment, if the success rate of transaction is high, the receiving sensitivity of CPC is high, so that it is easy to wake up by a wake-up signal. Such as: the false wake-up is serious, because of the limited use scene of the CPC, the receiving sensitivity of the CPC is designed to be higher to ensure the transaction success rate, but the false wake-up is caused when the transaction success rate is too high, the CPC is easy to be woken up by an interference signal, and the power consumption is increased; asymmetric phenomenon, CPC sensitivity is higher, is awaken up by the antenna easily, and antenna sensitivity is not high relatively, awakens up behind the CPC, can't receive at once to the signal roadside antenna that CPC returned, need wait for a period of time, and this in-process CPC is in the receiving state always, leads to the electric quantity consumption.
Therefore, in order to reduce false wake-up and asymmetry phenomena while ensuring the transaction success rate, reduce power consumption and prolong the service life of the product, the technical problem that needs to be solved by the technical personnel in the field is urgently needed.
Disclosure of Invention
Therefore, the embodiment of the application provides a radio frequency chip signal receiving method to solve the problem that power consumption is increased due to serious mistaken awakening caused by an asymmetric phenomenon in the prior art.
In order to achieve the above object, the embodiments of the present application provide the following technical solutions:
in a first aspect, an embodiment of the present application provides a radio frequency chip signal receiving method, including: configuring through a host program in advance, and setting a sleep period and a self-awakening period of the radio frequency chip; triggering the radio frequency chip to execute self-awakening operation through a preset timer module when the elapsed dormancy time reaches a time threshold corresponding to the dormancy period; after the radio frequency chip is awakened automatically, controlling the radio frequency chip to enter a receiving mode; detecting whether effective receiving signals exist or not based on a preset state control module; and if the effective receiving signal exists, outputting an interrupt signal to the host, and waking up the host to execute subsequent transaction processing operation aiming at the vehicle information.
Further, the detecting whether there is an effective received signal based on the preset state control module specifically includes: continuously detecting the strength RSSI of the received signal based on a preset state control module; detecting frame data of the received signal when the strength RSSI of the received signal reaches or exceeds a signal strength threshold value preset through a host program; if frame data meeting the preset conditions are detected within the detection time range preset by the host program, judging that effective receiving signals exist.
Further, the radio frequency chip signal receiving method further includes: and if the effective receiving signal does not exist, controlling the radio frequency chip to be switched into a dormant state after a preset time threshold is reached.
Further, the detecting whether there is an effective received signal based on the preset state control module specifically includes: and detecting whether the RSSI of the received signal reaches or exceeds a signal strength threshold value preset by a host program based on a preset state control module, and if so, judging that an effective received signal exists.
Further, the detecting whether there is an effective received signal based on the preset state control module specifically includes: and in a detection time range preset by a host program, detecting whether frame data meeting preset conditions exist in the received signals or not based on a preset state control module, and if so, judging that effective received signals exist.
Further, the radio frequency chip signal receiving method further includes: and when the elapsed detection time reaches or exceeds the detection time range preset by the software and frame data meeting the preset condition is not detected, controlling to jump to the detection of the strength RSSI of the received signal.
In a second aspect, an embodiment of the present application further provides a radio frequency chip signal receiving apparatus, including: the period setting unit is used for carrying out configuration in advance through a host program and setting a sleep period and a self-awakening period of the radio frequency chip; the self-awakening unit is used for triggering the radio frequency chip to execute self-awakening operation through a preset timer module when the elapsed sleep time reaches a time threshold corresponding to the sleep cycle; the mode control unit is used for controlling the radio frequency chip to enter a signal receiving mode after the radio frequency chip is awakened automatically; the detection unit is used for detecting whether effective receiving signals exist or not based on a preset state control module; and the interrupt signal output unit is used for outputting an interrupt signal to the host if the effective receiving signal is judged to exist, and awakening the host to execute subsequent transaction processing operation aiming at the vehicle information.
Further, the detection unit is specifically configured to: continuously detecting the strength RSSI of the received signal based on a preset state control module; detecting frame data of the received signal when the strength RSSI of the received signal reaches or exceeds a signal strength threshold value preset through a host program; if frame data meeting the preset conditions are detected within the detection time range preset by the host program, judging that effective receiving signals exist.
Further, the rf chip signal receiving apparatus further includes: and the judging and controlling unit is used for controlling the radio frequency chip to be switched into a dormant state after a preset time threshold is reached if no effective receiving signal exists.
Further, the detection unit is specifically configured to: and detecting whether the RSSI of the received signal reaches or exceeds a signal strength threshold value preset by a host program based on a preset state control module, and if so, judging that an effective received signal exists.
Further, the detection unit is specifically configured to: and in a detection time range preset by a host program, detecting whether frame data meeting preset conditions exist in the received signals or not based on a preset state control module, and if so, judging that effective received signals exist.
Further, the rf chip signal receiving apparatus further includes: and the skip control unit is used for controlling to skip to detect the RSSI of the received signal when the frame data meeting the preset condition is not detected after the elapsed detection time reaches or exceeds the detection time range preset by the software.
In a third aspect, an embodiment of the present application provides a radio frequency chip signal receiving system, including: the system comprises an SPI communication controller module, an RSSI receiving module, a decoding module, a state controller module, a timer module and a clock circuit module, wherein the SPI communication controller module is used for providing data communication with an external host, the RSSI receiving module is used for receiving a roadside antenna transmission signal, the decoding module is used for decoding frame data of a received signal, the state controller module is used for judging whether the received signal is a valid received signal and controlling the running state of a radio frequency chip, the timer module is used for recording elapsed time information, and the clock circuit module is used for generating a clock running signal; the decoding module, the RSSI receiving module, the state controller module, the SPI communication controller module, the timer module and the clock circuit module are connected.
Further, the SPI communication controller module is provided with an SPI interface for data communication with an external host.
Further, the rf chip signal receiving system further includes: the digital-to-analog converter module is arranged at the signal output end of the radio frequency chip.
Further, the decoding module comprises a first decoding module and a second decoding module; the first decoding module is arranged at the signal input end of the radio frequency chip and is connected with the output end of the analog-to-digital converter module; the second decoding module is arranged at the output end of the radio frequency chip and connected with the input end of the digital-to-analog converter module.
Further, the state controller module comprises a receiving unit and a transmitting unit.
In a fourth aspect, an embodiment of the present application further provides a computer-readable storage medium, where the computer storage medium contains one or more program instructions, and the one or more program instructions are used for a server to execute the method in any one of the foregoing radio frequency chip signal receiving methods.
By adopting the radio frequency chip signal receiving method, the electric quantity waste caused by error awakening and asymmetry can be greatly reduced, the success rate of segmented charging on a highway is greatly improved, and the economic loss caused by missing fee is reduced, so that the use experience of a user is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
Fig. 1 is a flowchart of a radio frequency chip signal receiving method according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of a radio frequency chip signal receiving apparatus according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a radio frequency chip signal receiving system according to an embodiment of the present disclosure;
fig. 4 is a flowchart illustrating detection of an effective signal in a radio frequency chip signal receiving method according to an embodiment of the present disclosure.
Detailed Description
The present disclosure is not intended to be limited to the particular embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The following describes an embodiment of a radio frequency chip signal receiving method based on the present application in detail. As shown in fig. 1, which is a flowchart of a radio frequency chip signal receiving method provided in the embodiment of the present application, a specific implementation process includes the following steps:
step S101: the method comprises the steps of configuring through a host program in advance, and setting a sleep period and a self-awakening period of the radio frequency chip.
In the embodiment of the application, data communication can be realized through the preset SPI communication controller module and the radio frequency chip by the external host program, the sleep period and the self-awakening period of the radio frequency chip are set, self-awakening is carried out through the preconfigured timer time after certain sleep time, and the operation of the external host is not needed, so that the automatic configuration is realized to carry out periodic sleep and self-awakening, the average power consumption of equipment is reduced, and the service life of the product is prolonged. It should be noted that, in the embodiment of the present application, the radio frequency chip may be applied to both a composite access card CPC and a roadside unit OBU, which is not specifically limited herein.
Step S102: and when the elapsed sleep time reaches a time threshold corresponding to the sleep period, triggering the radio frequency chip to execute self-awakening operation through a preset timer module.
After the sleep cycle and the self-wakeup cycle of the radio frequency chip are set in step S101, in this step, the elapsed time information may be recorded by a preset timer module, and the radio frequency chip is triggered to execute the self-wakeup operation when the preset sleep cycle is reached.
And after the elapsed sleep time reaches the time threshold corresponding to the sleep cycle, the wireless communication terminal enters a self-awakening stage, directly skips to a signal receiving mode after enabling the radio frequency chip, and does not need an external roadside antenna device to send an awakening signal for awakening, so that the awakening and transaction success rate is improved. Because of self-awakening, the situation of mistaken awakening by interference signals is avoided, and the power consumption is reduced. And the waiting time caused by asymmetry between the antenna and the periodic dormancy awakening is reduced, so that the electric quantity waste is avoided, and the service life is prolonged.
Step S103: and after the radio frequency chip is awakened automatically, controlling the radio frequency chip to enter a receiving mode.
After the self-wake-up operation is completed in step S102, the vehicle information may be sent to the roadside antenna in this step, and the rf chip is controlled to directly enter the receiving mode.
Step S104: the control module detects whether a valid received signal exists based on a preset state.
After directly entering the receiving mode in step S103, the control module may detect whether there is a valid receiving signal based on a preset state in this step.
Fig. 4 is a flowchart illustrating detection of an effective signal in a radio frequency chip signal receiving method according to an embodiment of the present application.
In this embodiment of the present application, the control module detects whether there is an effective received signal based on a preset state, and a specific implementation process may include at least three detection modes: a. continuously detecting the strength RSSI of the received signal based on a preset state control module; detecting frame data of the received signal when the strength RSSI of the received signal reaches or exceeds a signal strength threshold value or a threshold value preset through a host program; if frame data meeting the preset condition is detected within the detection time range T2 preset by the host program, it is determined that a valid received signal exists. b. If the RSSI reaches or exceeds a signal strength threshold value or a threshold value preset by the host program based on a preset state control module within a detection time range T1 preset by the host program, if so, judging that an effective received signal exists; if not, judging that no effective received signal exists. c. Detecting whether frame data meeting preset conditions exist in the received signals based on a preset state control module within a detection time range T2 preset by a host program, and if so, judging that valid received signals exist; if not, judging that no effective received signal exists. And when the elapsed detection time reaches or exceeds a detection time range T2 preset by software and frame data meeting a preset condition is not detected, controlling to jump to the detection of the strength RSSI of the received signal.
Step S105: and if the effective receiving signal exists, outputting an interrupt signal to the host, and waking up the host to execute subsequent transaction processing operation aiming at the vehicle information.
In the embodiment of the present application, it can be determined whether a received signal with sufficient signal strength and/or valid frame data is received within the wakeup time window, and then whether a valid signal exists currently is determined. And if the effective receiving signal exists, outputting an interrupt signal to the host computer, and waking up the host computer to execute subsequent transaction processing operation aiming at the vehicle information. And if the effective receiving signal does not exist, controlling the radio frequency chip to be switched into a dormant state after a preset time threshold is reached.
When the chip judges that no effective signal is received at present, the chip is switched into a dormant state after a preset time (T1) to carry out a new round of dormancy and self-awakening, so that the average power consumption can be reduced. It should be noted that, in the embodiment of the present application, the chip is a radio frequency chip in an OBU or a CPC.
By adopting the radio frequency chip signal receiving method, the electric quantity waste caused by error awakening and asymmetry can be greatly reduced, the success rate of segmented charging on a highway is greatly improved, and the economic loss caused by missing fee is reduced, so that the use experience of a user is improved.
Corresponding to the radio frequency chip signal receiving method, the application also provides a radio frequency chip signal receiving device. Since the embodiment of the apparatus is similar to the above method embodiment, the description is relatively simple, and please refer to the description of the above method embodiment, and the following embodiments of the rf chip signal receiving apparatus are only schematic. Please refer to fig. 2, which is a schematic diagram of a radio frequency chip signal receiving apparatus according to an embodiment of the present disclosure.
The radio frequency chip signal receiving device comprises the following parts:
the period setting unit 201 is configured in advance through a host program, and is configured to set a sleep period and a self-wakeup period of the rf chip.
And the self-awakening unit 202 is configured to trigger the radio frequency chip to execute a self-awakening operation through a preset timer module when the elapsed sleep time reaches a time threshold corresponding to the sleep cycle.
And the mode control unit 203 is configured to control the radio frequency chip to enter a signal receiving mode after the radio frequency chip is self-awakened.
The detecting unit 204 is configured to control the module to detect whether a valid received signal exists based on a preset state.
An interrupt signal output unit 205, configured to output an interrupt signal to the host if it is determined that a valid received signal exists, and wake up the host to perform a subsequent transaction processing operation for the vehicle information.
Adopt this application radio frequency chip signal receiving arrangement, can significantly reduce because the electric quantity that the mistake arouses and asymmetry leads to is extravagant, has very big help to the success rate that improves the segmentation charge on the highway, has reduced because the economic loss who leaks to deduct the expense and cause.
Corresponding to the two radio frequency chip signal receiving methods, the invention also provides a radio frequency chip signal receiving system. Since the embodiment of the system is similar to the above method embodiment, the description is simple, and for the relevant points, reference may be made to the description of the above method embodiment, and the electronic device described below is only schematic. Fig. 3 is a schematic structural diagram of a radio frequency chip signal receiving system according to an embodiment of the present invention. The method specifically comprises the following steps: the system comprises an SPI communication controller module, an RSSI receiving module, a decoding module, a state controller module, a timer module and a clock circuit module, wherein the SPI communication controller module is used for providing data communication with an external host, the RSSI receiving module is used for receiving a roadside antenna transmission signal, the decoding module is used for decoding frame data of a received signal, the state controller module is used for judging whether the received signal is a valid received signal and controlling the running state of a radio frequency chip, the timer module is used for recording elapsed time information, and the clock circuit module is used for generating a clock running signal; the decoding module, the RSSI receiving module, the state controller module, the SPI communication controller module, the timer module, and the clock circuit module are connected in the manner shown in fig. 3, and realize signal transmission. The SPI communication controller module is provided with an SPI interface used for carrying out data communication with an external host, thereby being convenient for carrying out autonomous configuration on the radio frequency chip through programs in the external host and realizing the periodic self-awakening receiving antenna signal of the radio frequency chip. The state controller module comprises a receiving unit and a transmitting unit, and is respectively used for receiving and transmitting transaction data of an ETC system roadside antenna, and processing and judging signals or the transaction data.
Further, the rf chip signal receiving system further includes: the specific connection relationship between the programmable gain amplifier module and the analog-to-digital converter module disposed at the signal input end of the rf chip and the digital-to-analog converter module disposed at the signal output end of the rf chip can refer to fig. 3, and will not be described in detail herein. Furthermore, the decoding module comprises a first decoding module and a second decoding module; the first decoding module is arranged at the signal input end of the radio frequency chip and is connected with the output end of the analog-to-digital converter module; the second decoding module is arranged at the output end of the radio frequency chip and connected with the input end of the digital-to-analog converter module.
Corresponding to the radio frequency chip signal receiving method, the invention also provides a computer storage medium. Since the embodiment of the computer storage medium is similar to the above method embodiment, the description is simple, and please refer to the description of the above method embodiment, and the computer storage medium described below is only schematic.
The computer storage medium contains one or more program instructions for executing the radio frequency chip signal receiving method.
In an embodiment of the invention, the processor or processor module may be an integrated circuit chip having signal processing capabilities. 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.
The volatile Memory may be a Random Access Memory (RAM) which serves as an external cache. By way of example and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (ddr Data Rate SDRAM), Enhanced SDRAM (ESDRAM), synclink DRAM (SLDRAM), and Direct memory bus 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 radio frequency chip signal receiving method, comprising:
configuring through a host program in advance, and setting a sleep period and a self-awakening period of the radio frequency chip;
triggering the radio frequency chip to execute self-awakening operation through a preset timer module when the elapsed dormancy time reaches a time threshold corresponding to the dormancy period;
after the radio frequency chip is awakened automatically, controlling the radio frequency chip to enter a receiving mode;
detecting whether effective receiving signals exist or not based on a preset state control module;
if the effective receiving signal exists, an interrupt signal is output to the host, and the host is awakened to execute subsequent transaction processing operation.
2. The method for receiving an rf chip signal according to claim 1, wherein the detecting whether there is a valid received signal based on the preset state control module specifically includes:
continuously detecting the strength RSSI of the received signal based on a preset state control module;
detecting frame data of the received signal when the strength RSSI of the received signal reaches or exceeds a signal strength threshold value preset through a host program;
if frame data meeting the preset conditions are detected within the detection time range preset by the host program, judging that effective receiving signals exist.
3. The radio frequency chip signal receiving method according to claim 1, further comprising: and if the effective receiving signal does not exist, controlling the radio frequency chip to be switched into a dormant state after a preset time threshold is reached.
4. The method for receiving an rf chip signal according to claim 1, wherein the detecting whether there is a valid received signal based on the preset state control module specifically includes: and detecting whether the RSSI of the received signal reaches or exceeds a signal strength threshold value preset by a host program based on a preset state control module, and if so, judging that an effective received signal exists.
5. The method for receiving an rf chip signal according to claim 1, wherein the detecting whether there is a valid received signal based on the preset state control module specifically includes: and in a detection time range preset by a host program, detecting whether frame data meeting preset conditions exist in the received signals or not based on a preset state control module, and if so, judging that effective received signals exist.
6. The radio frequency chip signal receiving method according to claim 2, further comprising: and when the elapsed detection time reaches or exceeds the detection time range preset by the software and frame data meeting the preset condition is not detected, controlling to jump to the detection of the strength RSSI of the received signal.
7. A radio frequency chip signal receiving apparatus, comprising:
the period setting unit is used for carrying out configuration in advance through a host program and setting a sleep period and a self-awakening period of the radio frequency chip;
the self-awakening unit is used for triggering the radio frequency chip to execute self-awakening operation through a preset timer module when the elapsed sleep time reaches a time threshold corresponding to the sleep cycle;
the mode control unit is used for controlling the radio frequency chip to enter a signal receiving mode after the radio frequency chip is awakened automatically;
the detection unit is used for detecting whether effective receiving signals exist or not based on a preset state control module;
and the interrupt signal output unit is used for outputting an interrupt signal to the host if the effective receiving signal is judged to exist, and awakening the host to execute subsequent transaction processing operation.
8. A radio frequency chip signal receiving system, comprising: the system comprises an SPI communication controller module, an RSSI receiving module, a decoding module, a state controller module, a timer module and a clock circuit module, wherein the SPI communication controller module is used for providing data communication with an external host, the RSSI receiving module is used for receiving a roadside antenna transmission signal, the decoding module is used for decoding frame data of a received signal, the state controller module is used for judging whether the received signal is a valid received signal and controlling the running state of a radio frequency chip, the timer module is used for recording elapsed time information, and the clock circuit module is used for generating a clock running signal; the decoding module, the RSSI receiving module, the state controller module, the SPI communication controller module, the timer module and the clock circuit module are connected.
9. The rf chip signal receiving system according to claim 8, wherein the SPI communication controller module is provided with an SPI interface for data communication with an external host.
10. A computer-readable storage medium, wherein the computer-readable storage medium contains one or more program instructions for executing the radio-frequency chip signal receiving method according to any one of claims 1 to 6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010171827.4A CN111277285A (en) | 2020-03-12 | 2020-03-12 | Radio frequency chip signal receiving method, device and system |
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| CN202010171827.4A CN111277285A (en) | 2020-03-12 | 2020-03-12 | Radio frequency chip signal receiving method, device and system |
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