CN109873667B - Energy conversion method, system, readable storage medium and computer equipment - Google Patents
Energy conversion method, system, readable storage medium and computer equipment Download PDFInfo
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- CN109873667B CN109873667B CN201910230126.0A CN201910230126A CN109873667B CN 109873667 B CN109873667 B CN 109873667B CN 201910230126 A CN201910230126 A CN 201910230126A CN 109873667 B CN109873667 B CN 109873667B
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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
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- 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 invention discloses an energy conversion method, an energy conversion system, a readable storage medium and computer equipment, wherein the method comprises the following steps: acquiring a current time slot state of a wireless relay system, and judging a time slot type of the current time slot state, wherein the time slot type comprises a first time slot state, a second time slot state and a third time slot state; when the current time slot state of the wireless relay system is a first time slot state, acquiring a radio frequency signal with a preset frequency, converting the radio frequency signal into a corresponding energy signal, and storing the energy signal in a preset energy storage; when the current time slot state of the wireless relay system is a second time slot state, acquiring communication information required to be sent by a source end, and forwarding the communication information to a relay; and when the current time slot state of the wireless relay system is the third time slot state, acquiring the communication information received by the relay, and forwarding the communication information to the destination terminal. The invention solves the problems of large energy consumption, high use cost and short service life of the existing wireless relay system for receiving and transmitting information.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to an energy conversion method, an energy conversion system, a readable storage medium, and a computer device.
Background
In a wireless sensor network, due to the size limitation of a sensor node, two or more antennas cannot be equipped, so that it is difficult to implement space diversity by a mimo technology, and the improvement of system performance is greatly restricted. By using the wireless cooperative relay, another form of space diversity, namely cooperative diversity can be realized, so that the coverage of a wireless sensor network can be improved at low cost, the power consumption of a sensor node can be reduced, and the network capacity can be improved. Therefore, the wireless cooperative relay technology is a key technology for maintaining the connection between the nodes, prolonging the service life of the network and improving the capacity of the network in the wireless sensor network.
The wireless relay cooperative communication can also be used for blindness compensation at low cost and wireless signal transmission quality improvement, is one of the key technologies of the LTE-Advanced standard at present, and is an important technology of a 5G network in the future. However, in many application scenarios, the relay node cannot access the grid and must be powered using a battery. For example, the internet of things is an important component of a 5G network, wherein the relay node is generally a common wireless sensor node powered by a battery; especially for the application of environmental monitoring, the nodes are usually deployed in remote areas such as mountainous areas, forests and water areas where the power grid access cannot be provided.
Because the relay nodes need extra energy for cooperatively forwarding the information, when the wireless nodes frequently participating in cooperative forwarding of the information are powered by batteries, the battery energy of the wireless nodes can be quickly exhausted, and the wireless nodes cannot work normally. To solve the relay power consumption problem, the conventional method is to replace or charge the battery. However, replacing or recharging batteries is often costly and inconvenient, and may not even be practical in harsh environments or special application scenarios. Therefore, relay energy limitation is an important problem that the internet of things must solve, and is also an important challenge for the 5G network to realize all-round high-quality coverage.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide an energy conversion method, system, readable storage medium and computer device capable of reducing energy consumption of relaying receiving and forwarding information and prolonging service life of a wireless relay system to the maximum extent.
The energy conversion method provided by the invention is applied to a wireless relay system and comprises the following steps:
acquiring the current time slot state of the wireless relay system, and judging the time slot type of the current time slot state, wherein the time slot type comprises a first time slot state, a second time slot state and a third time slot state;
when the current time slot state of the wireless relay system is a first time slot state, acquiring a radio frequency signal with a preset frequency, converting the radio frequency signal into a corresponding energy signal, and storing the energy signal in a preset energy storage;
when the current time slot state of the wireless relay system is a second time slot state, acquiring communication information required to be sent by the source end, and forwarding the communication information to a relay;
and when the current time slot state of the wireless relay system is a third time slot state, acquiring the communication information received by the relay, and forwarding the communication information to a destination terminal.
According to the energy conversion method provided by the invention, firstly, the current time slot state of the wireless relay system is obtained, and the time slot type of the current time slot state is judged, wherein the time slot type comprises a first time slot state, a second time slot state and a third time slot state; when the current time slot state of the wireless relay system is a first time slot state, acquiring a radio frequency signal with a preset frequency, converting the radio frequency signal into a corresponding energy signal, and storing the energy signal in a preset energy storage; when the current time slot state of the wireless relay system is a second time slot state, acquiring communication information required to be sent by the source end, and forwarding the communication information to a relay; when the current time slot state of the wireless relay system is a third time slot state, the communication information received by the relay is acquired, and the communication information is forwarded to a destination end, so that the conversion of the energy of the wireless relay system and the forwarding of the information are realized; the current time slot state of the wireless relay system can be judged and fed back in real time, so that the working state of the wireless relay system can be monitored in real time, the wireless relay system can be ensured to convert energy of radio frequency signals in time, and the converted energy can complete the forwarding of communication information to be sent, the energy consumption problem of the wireless relay system is solved, and the service life of the wireless relay system is prolonged; the energy collection of the wireless relay system is realized by acquiring a preset radio frequency signal and converting and storing the energy of the radio frequency signal in the first time slot state; and the communication of the wireless relay system is completed by adopting the stored energy to transmit and receive communication signals in the second time slot state and the third time slot state. The energy collection and the information forwarding can be realized by collecting and storing the radio frequency energy and realizing the energy collection and the information forwarding in a time division mode, so that the relay node collects the energy or drives the wireless relay system to receive and transmit the information by the collected energy, the energy is saved, and the service life of the wireless relay system is prolonged.
In addition, the energy conversion method according to the present invention may have the following additional features:
further, the method for acquiring a radio frequency signal with a preset frequency, converting the radio frequency signal into a corresponding energy signal and storing the energy signal in a preset energy storage device includes:
when an energy storage signal is received, the radio frequency energy collection assembly is switched from a dormant state to an awakening state to generate a pulse signal, and a time slot timing program is started to be loaded;
in the process of loading the time slot timing program, the radio frequency energy collection component collects the radio frequency signals with the preset frequency, when the collection of the radio frequency signals with the preset frequency is completed, the radio frequency energy collection component is switched from an awakening state to a dormant state, and the energy conversion component converts the radio frequency signals with the preset frequency into corresponding energy signals and stores the energy signals in the preset energy storage;
and when the time slot timing is finished, the energy conversion assembly stops working, and the preset energy storage starts to release energy until the second time slot state and the third time slot state are finished.
Further, before the step of switching the rf energy harvesting component from the sleep state to the wake state to generate a pulse signal and starting to load the timeslot timer when receiving an energy storage signal, the method further includes:
when an energy acquisition signal is received, recording the current time as a first time, and simultaneously acquiring a second time when the residual energy of the preset energy storage is acquired last time;
judging whether the time difference between the first time and the second time is greater than a preset time value or not;
and if the time difference is larger than a preset time value, acquiring the residual energy of the preset energy storage at the current time.
Further, after the step of acquiring a radio frequency signal with a preset frequency, and converting the radio frequency signal into a corresponding energy signal to be stored in a preset energy storage, the method further includes:
acquiring the current energy value in the preset energy storage, and calculating the minimum energy value required to be consumed by the second time slot state and the third time slot state;
judging whether the difference energy value between the current energy value and the lowest energy value is smaller than a preset energy value or not;
if so, calculating the time required for converting the preset energy value, and adjusting the starting or maintaining time of the second time slot state and the third time slot state;
if not, determining the starting or maintaining time of the first time slot state, the second time slot state and the third time slot state according to preset allocation time.
Further, before the step of obtaining the current time slot state of the wireless relay system and determining the time slot type of the current time slot state, the method further includes:
acquiring radio frequency tag information carried in the radio frequency signal with the preset frequency, wherein the radio frequency tag information comprises one or more of position, time, frequency and working state;
inputting the radio frequency label information and source end label information carried by the source end into a label mapping table;
and when the radio frequency label information in the label mapping table and the information mapping relation of the source end label information do not correspond, generating early warning information and a corresponding fault log.
Further, a constant alternating current signal source is connected to two ends of the energy storage, and the step of obtaining the current energy value in the preset energy storage includes:
collecting alternating voltage peak values at two ends of the energy storage and alternating current peak values flowing through the energy storage through a peak value retainer;
monitoring a phase difference between the alternating voltage signal and the alternating current signal through a phase detection circuit;
and acquiring alternating current, a voltage peak value and a phase difference, and acquiring the current energy value of the energy storage according to the alternating current, the voltage peak value and the phase difference.
Further, the sum of the time slots of the first time slot state and the second time slot state and the third time slot state is a time frame T, where T ═ α1T+α2T+α3T, wherein αiIs a slot coefficient, alphai(i∈{1,2,3})，α1+α2+α3＝1。
Another embodiment of the present invention provides an energy conversion system, which solves the problem that the conventional relay has a short service life due to the fact that the energy consumption for receiving and forwarding information is high and the battery needs to be replaced periodically, and meets the practical application requirements of users.
An energy conversion system according to an embodiment of the present invention includes:
an obtaining module, configured to obtain a current time slot state of the wireless relay system, and determine a time slot type of the current time slot state, where the time slot type includes a first time slot state, a second time slot state, and a third time slot state;
the conversion module is used for acquiring a radio frequency signal with a preset frequency when the current time slot state of the wireless relay system is a first time slot state, converting the radio frequency signal into a corresponding energy signal and storing the energy signal in a preset energy storage;
the forwarding module is used for acquiring communication information required to be sent by the source end when the current time slot state of the wireless relay system is a second time slot state, and forwarding the communication information to a relay;
and the receiving module is used for acquiring the communication information received by the relay and forwarding the communication information to a destination terminal when the current time slot state of the wireless relay system is a third time slot state.
Another embodiment of the invention also proposes a storage medium on which a computer program is stored which, when being executed by a processor, carries out the steps of the above-mentioned method.
Another embodiment of the present invention also proposes a computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the above method when executing the program.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a flow chart of an energy conversion method according to a first embodiment of the present invention;
FIG. 2 is a detailed flowchart of step S102 in the first embodiment of the present invention;
FIG. 3 is a flow chart of a method of energy conversion according to a second embodiment of the present invention;
fig. 4 is a block diagram of an energy conversion system according to a third embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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 invention.
Referring to fig. 1, a method for energy conversion according to a first embodiment of the present invention is applied to a wireless relay system, and includes steps S101 to S104:
step S101, obtaining the current time slot state of the wireless relay system, and judging the time slot type of the current time slot state, wherein the time slot type comprises a first time slot state, a second time slot state and a third time slot state.
In this embodiment, a relay node is taken as an example for description, but it should be understood that the embodiment of the present invention is not limited thereto, and the method of the embodiment of the present invention may be applied to any relay system, that is, any wireless communication system that can communicate through a relay node. Specifically, in the prior art, because the relay nodes need extra energy for cooperatively forwarding the information, when the wireless nodes frequently participating in the cooperative forwarding of the information are powered by batteries, the battery energy of the wireless nodes is quickly exhausted, which may cause the wireless nodes to fail to operate normally. In the embodiment of the invention, in order to solve the problem, the received radio frequency signal with the preset radio frequency is converted into the corresponding energy signal for storage, so that the wireless relay system can be driven to transmit and receive information by using the stored energy signal.
Specifically, according to actual requirements, a running period of the wireless relay system is subjected to time division processing, and then divided into a plurality of time slot types, wherein the working states of the wireless relay system are different for each time slot type. In this embodiment, the timeslot types of the wireless relay system include a first timeslot state, a second timeslot state, and a third timeslot state. It can be understood that the current working state of the wireless relay system is determined by obtaining the current time slot state of the wireless relay and judging the time slot type of the current time slot, so that the duration of the current working state of the wireless relay system is determined according to the time slot type corresponding to the current working state of the wireless relay system, the system performance of the wireless relay system is improved, and the energy consumption is saved.
As a specific embodiment, the sum of the time slots of the first time slot state and the second time slot state and the third time slot state is a time frame T, where T ═ α1T+α2T+α3T, wherein αiIs a slot coefficient, alphai(i∈{1,2,3})，α1+α2+α31. In this example, α1：α2：α3As 2:1:1, it can be understood that the time ratio of the first slot state to the second slot state and the third slot state is 2:1:1, in other embodiments of the invention, αiThe value of (b) can also be adjusted according to actual requirements, and is not limited herein.
Step S102, when the current time slot state of the wireless relay system is the first time slot state, acquiring a radio frequency signal with a preset frequency, converting the radio frequency signal into a corresponding energy signal, and storing the energy signal in a preset energy storage.
As described above, when the current timeslot state of the wireless relay system is the first timeslot state, the radio frequency signal with the preset frequency transmitted from the radio frequency energy signal transmitting end is collected by the corresponding radio frequency collecting circuit, and the radio frequency signal with the preset frequency is converted into the corresponding energy signal by the radio frequency converting circuit and stored in the preset energy storage. The radio frequency signal with the preset frequency may be a radio frequency signal with a continuous band, radio frequency signals with a plurality of discontinuous bands, or a radio frequency signal with a specific frequency, which is not limited herein.
Further, when an energy acquisition signal is received, recording the current time as a first time, and simultaneously acquiring a second time when the residual energy of the preset energy storage is acquired last time; judging whether the time difference between the first time and the second time is greater than a preset time value or not; and if the time difference is larger than a preset time value, acquiring the residual energy of the preset energy storage at the current time.
Wherein, for improving wireless relay system's reliability, consequently need right predetermine the residual energy of energy storage and confirm to avoid owing to corresponding subassembly that energy collection or conversion in the wireless relay system breaks down, or fault time overlength leads to the problem that wireless relay system life-span reduces, and because the time difference is greater than predetermine the time value, explain predetermine the condition that the energy storage does not examine the residual energy for a long time, only to such a condition, just can obtain at the current time that receives the energy acquisition signal predetermine the residual energy of energy storage, can alleviate wireless relay system's processing burden has promoted the practicality.
In addition, since the process of acquiring the radio frequency signal with the preset frequency and converting the radio frequency signal into the corresponding energy signal to be stored in the preset energy storage is complex and has more energy consumption, it needs to be further refined, please refer to fig. 2, and the specific steps include:
step S1021, when receiving an energy storage signal, the RF energy collection module switches from the sleep state to the wake-up state to generate a pulse signal and starts to load the time slot timing program.
As mentioned above, the wireless relay system includes an rf energy harvesting component, which switches from a sleep state to an awake state to generate a pulse signal and starts to load the timeslot timer when receiving an energy storage signal. Wherein the pulse signal may be generated by a PWM waveform generator.
Step S1022, in the process of loading the timeslot timer, the radio frequency energy collection component collects the radio frequency signal with the preset frequency, when the collection of the radio frequency signal with the preset frequency is completed, the radio frequency energy collection component is switched from the awake state to the sleep state, and the energy conversion component converts the radio frequency signal with the preset frequency into a corresponding energy signal and stores the energy signal in the preset energy storage.
As described above, in the process of loading the timeslot timer, the rf energy collection component collects the rf signals with the preset frequency, and when the collection of the rf signals with the preset frequency is completed, the rf energy collection component is switched from the awake state to the sleep state to reduce energy consumption; at this time, the energy conversion assembly starts to work under the action of the pulse signal, converts the radio frequency signal with the preset frequency into a corresponding energy signal, and stores the energy signal in the energy storage.
Step S1023, when the time slot timing is finished, the energy conversion module stops working, and the preset energy storage starts to release energy until the second time slot state and the third time slot state are finished.
As described above, when the time slot timing is over, the energy conversion module stops working, and the preset energy storage starts to release energy to provide energy for the transmission and reception of the communication information of the second time slot state and the third time slot state.
It can be understood that, by waking up the rf energy collection assembly when energy collection is required, at other times, the rf energy collection assembly is in a dormant state, thereby reducing energy consumption to the maximum extent and extending the service life of the wireless relay system.
Step S103, when the current time slot state of the wireless relay system is the second time slot state, acquiring the communication information required to be sent by the source end, and forwarding the communication information to the relay.
As described above, when the current timeslot status of the wireless relay system is the second timeslot status, the communication information required to be sent by the source end is acquired, and the communication information is forwarded to the relay by using the energy stored in the preset energy storage.
Step S104, when the current time slot state of the wireless relay system is the third time slot state, the communication information received by the relay is acquired, and the communication information is forwarded to a destination terminal.
As described above, when the current timeslot state of the wireless relay system is the third timeslot state, the communication information received by the relay is acquired, and the communication information is forwarded to the destination end by using the energy stored in the preset energy storage.
According to the energy conversion method provided by the invention, firstly, the current time slot state of the wireless relay system is obtained, and the time slot type of the current time slot state is judged, wherein the time slot type comprises a first time slot state, a second time slot state and a third time slot state; when the current time slot state of the wireless relay system is a first time slot state, acquiring a radio frequency signal with a preset frequency, converting the radio frequency signal into a corresponding energy signal, and storing the energy signal in a preset energy storage; when the current time slot state of the wireless relay system is a second time slot state, acquiring communication information required to be sent by the source end, and forwarding the communication information to a relay; when the current time slot state of the wireless relay system is a third time slot state, the communication information received by the relay is acquired, and the communication information is forwarded to a destination end, so that the conversion of the energy of the wireless relay system and the forwarding of the information are realized; the current time slot state of the wireless relay system can be judged and fed back in real time, so that the working state of the wireless relay system can be monitored in real time, the wireless relay system can be ensured to convert energy of radio frequency signals in time, and the converted energy can complete the forwarding of communication information to be sent, the energy consumption problem of the wireless relay system is solved, and the service life of the wireless relay system is prolonged; the energy collection of the wireless relay system is realized by acquiring a preset radio frequency signal and converting and storing the energy of the radio frequency signal in the first time slot state; and the communication of the wireless relay system is completed by adopting the stored energy to transmit and receive communication signals in the second time slot state and the third time slot state. The energy collection and the information forwarding can be realized by collecting and storing the radio frequency energy and realizing the energy collection and the information forwarding in a time division mode, so that the relay node collects the energy or drives the wireless relay system to receive and transmit the information by the collected energy, the energy is saved, and the service life of the wireless relay system is prolonged.
In addition, as a specific example, in this embodiment, before the step of acquiring the current timeslot state of the wireless relay system and determining the timeslot type of the current timeslot state in step S101, the method further includes:
acquiring radio frequency tag information carried in the radio frequency signal with the preset frequency, wherein the radio frequency tag information comprises one or more of position, time, frequency and working state; inputting the radio frequency label information and source end label information carried by the source end into a label mapping table; and when the radio frequency label information in the label mapping table and the information mapping relation of the source end label information do not correspond, generating early warning information and a corresponding fault log.
Determining the working states of a radio frequency signal transmitting end and a source end by judging the corresponding relation between the radio frequency label information and the source end label information in the label mapping table; through the generation of the early warning information and the fault log, related personnel can be reminded to check and process the fault information in time, and the problem that due to the fault of a radio frequency signal end or a source end, the energy in the preset energy storage is exhausted or the receiving and sending of communication information are failed, so that the reliability and the service life of the wireless relay system are influenced is avoided.
Referring to fig. 3, the energy conversion method in the second embodiment includes steps S201 to S204.
Step S201, calculating the minimum energy value required to be consumed by the second time slot state and the third time slot state according to the current energy value in the preset energy storage.
As described above, when an energy collecting signal is received, the minimum energy value to be consumed in the second time slot state and the third time slot state is calculated according to the current energy value in the preset energy storage. The current energy value in the preset energy storage can acquire alternating current voltage peak values at two ends of the preset energy storage and alternating current peak values flowing through the preset energy storage through a peak value retainer; monitoring a phase difference between the alternating voltage signal and the alternating current signal through a phase detection circuit; and acquiring alternating current, a voltage peak value and a phase difference, and acquiring the current energy value of the preset energy storage according to the alternating current, the voltage peak value and the phase difference.
In other embodiments, the current energy value in the preset energy storage may further determine the current actual capacity of the preset energy storage according to the usage time of the preset energy storage, the initial capacity of the preset energy storage, and a relationship between the usage time of the preset energy storage and the remaining capacity; and determining the current energy value of the preset energy storage according to the actual capacity of the preset energy storage, the released energy value and the stored energy value of the preset energy storage in the current energy storage and release process.
Step S202, determining whether a difference energy value between the current energy value and the lowest energy value is smaller than a preset energy value, if so, performing step S203, and if not, performing step S204.
Step S203, calculating the time required for converting the preset energy value, and adjusting the start or hold time of the second time slot state and the third time slot state.
As described above, when the difference energy value between the current energy value and the lowest energy value is smaller than the preset energy value, the time required for switching the preset energy value is calculated, and the start or hold time of the second timeslot state and the third timeslot state is adjusted to ensure that there is enough energy in the preset energy storage to ensure the transmission and reception of the communication information. It is understood that, in other embodiments, when the difference energy value between the current energy value and the lowest energy value is smaller than the preset energy value, only the time required for the first timeslot state to switch the difference energy value may be calculated, and only the energy value of the preset energy storage at the next time frame is ensured to complete the transmission and reception of the communication information, which is not limited herein, and the user may make corresponding adjustments according to actual needs.
Step S204, determining the starting or maintaining time of the first time slot state, the second time slot state and the third time slot state according to the preset distribution time.
As described above, when the difference energy value between the current energy value and the lowest energy value is greater than or equal to the preset energy value, the preset energy storage has enough energy to complete the transmission and forwarding of the communication message before the next time frame arrives, and at this time, the start or hold time of the first timeslot state, the second timeslot state, and the third timeslot state is determined according to the preset allocation time.
In the energy conversion method of the embodiment, a user calculates and judges the difference energy value between the current energy value and the lowest energy value of the preset energy storage and the preset energy value, so that the time division processing of radio frequency energy collection, low-energy consumption switch control and information processing is realized, and the situation that when wireless nodes frequently participating in cooperative information forwarding use batteries for power supply is avoided, the batteries can be quickly exhausted, and the wireless nodes cannot normally work; the starting or maintaining time of the second time slot state and the third time slot state is adjusted to ensure that the preset energy storage has enough energy to transmit and receive the communication information before the next time frame arrives, so that the energy consumption problem of the wireless relay system is solved, the service life of the wireless relay system is prolonged, and the actual application requirements are met.
The embodiment further improves the energy conversion method on the basis of the second embodiment, adjusts the starting or maintaining time of the first time slot state, the second time slot state and the third time slot state according to actual requirements, improves the performance of the wireless relay system, has low energy consumption and long service life, and meets the actual application requirements.
It should be noted that the present embodiment focuses on differences from the previous embodiment, similar parts between the embodiments are not repeatedly described, and may refer to each other, and technical features between the embodiments may be selectively combined according to a conventional technical means of a person skilled in the art.
Referring to fig. 4, based on the same inventive concept, a third embodiment of the present invention provides an energy conversion system, including: the device comprises an acquisition module 10, a conversion module 20, a forwarding module 30 and a receiving module 40.
The obtaining module 10 is configured to obtain a current time slot state of the wireless relay system, and determine a time slot type of the current time slot state, where the time slot type includes a first time slot state, a second time slot state, and a third time slot state.
Wherein the sum of the time slots of the first time slot state and the second time slot state and the third time slot state is a time frame T, and T ═ alpha1T+α2T+α3T, wherein αiIs a slot coefficient, alphai(i∈{1,2,3})，α1+α2+α3＝1。
The converting module 20 is configured to, when the current timeslot state of the wireless relay system is the first timeslot state, acquire a radio frequency signal with a preset frequency, convert the radio frequency signal into a corresponding energy signal, and store the energy signal in a preset energy storage.
The forwarding module 30 is configured to, when the current timeslot status of the wireless relay system is the second timeslot status, acquire communication information that needs to be sent by the source end, and forward the communication information to the relay.
The receiving module 40 is configured to, when the current timeslot state of the wireless relay system is a third timeslot state, acquire the communication information received by the relay, and forward the communication information to a destination.
In this embodiment, the conversion module 20 includes a first conversion submodule 21 and a second conversion submodule 22.
The first conversion submodule 21 includes:
the switching unit 211 is configured to switch the rf energy harvesting component from the sleep state to the wake-up state to generate a pulse signal and start loading the timeslot timer when receiving an energy storage signal.
Before the step of switching the rf energy harvesting component from the sleep state to the wake-up state to generate a pulse signal and starting to load the timeslot timer when receiving an energy storage signal, the method further includes: when an energy acquisition signal is received, recording the current time as a first time, and simultaneously acquiring a second time when the residual energy of the preset energy storage is acquired last time; judging whether the time difference between the first time and the second time is greater than a preset time value or not; and if the time difference is larger than a preset time value, acquiring the residual energy of the preset energy storage at the current time.
The storage unit 212 is configured to, during the process of loading the timeslot timer program, perform collection of the radio frequency signal with the preset frequency by the radio frequency energy collection component, when the collection of the radio frequency signal with the preset frequency is completed, switch the radio frequency energy collection component from an awake state to a sleep state, and convert the radio frequency signal with the preset frequency into a corresponding energy signal by the energy conversion component and store the energy signal in the preset energy storage.
And an energy releasing unit 213, configured to stop working of the energy conversion component when the time slot timing is ended, and start releasing energy from the preset energy storage until the second time slot state and the third time slot state are ended.
The second conversion submodule 22 includes:
the calculating unit 221 is configured to obtain a current energy value in the preset energy storage, and calculate a lowest energy value required to be consumed by the second timeslot state and the third timeslot state.
The two ends of the energy storage are connected with a constant alternating current signal source, and the step of acquiring the current energy value in the preset energy storage comprises the following steps:
collecting alternating voltage peak values at two ends of the energy storage and alternating current peak values flowing through the energy storage through a peak value retainer;
monitoring a phase difference between the alternating voltage signal and the alternating current signal through a phase detection circuit;
and acquiring alternating current, a voltage peak value and a phase difference, and acquiring the current energy value of the energy storage according to the alternating current, the voltage peak value and the phase difference.
The determining unit 222 is configured to determine that a difference energy value between the current energy value and the lowest energy value is smaller than a preset energy value.
An adjusting unit 223, configured to calculate a time required for converting the preset energy value when a difference energy value between the current energy value and the lowest energy value is smaller than a preset energy value, and adjust a start-up or maintenance time of the second timeslot state and the third timeslot state;
an allocating unit 224, configured to determine the start or hold time of the first timeslot state, the second timeslot state, and the third timeslot state according to a preset allocation time when the difference energy value between the current energy value and the lowest energy value is not less than a preset energy value.
The acquiring module 10 is further configured to acquire radio frequency tag information carried in the radio frequency signal with the preset frequency, where the radio frequency tag information includes one or more of a position, time, frequency, and a working state;
inputting the radio frequency label information and source end label information carried by the source end into a label mapping table;
and when the radio frequency label information in the label mapping table and the information mapping relation of the source end label information do not correspond, generating early warning information and a corresponding fault log.
According to the energy conversion system provided by the invention, firstly, the current time slot state of the wireless relay system is obtained, and the time slot type of the current time slot state is judged, wherein the time slot type comprises a first time slot state, a second time slot state and a third time slot state; when the current time slot state of the wireless relay system is a first time slot state, acquiring a radio frequency signal with a preset frequency, converting the radio frequency signal into a corresponding energy signal, and storing the energy signal in a preset energy storage; when the current time slot state of the wireless relay system is a second time slot state, acquiring communication information required to be sent by the source end, and forwarding the communication information to a relay; when the current time slot state of the wireless relay system is a third time slot state, the communication information received by the relay is acquired, and the communication information is forwarded to a destination end, so that the conversion of the energy of the wireless relay system and the forwarding of the information are realized; the current time slot state of the wireless relay system can be judged and fed back in real time, so that the working state of the wireless relay system can be monitored in real time, the wireless relay system can be ensured to convert energy of radio frequency signals in time, and the converted energy can complete the forwarding of communication information to be sent, the energy consumption problem of the wireless relay system is solved, and the service life of the wireless relay system is prolonged; the energy collection of the wireless relay system is realized by acquiring a preset radio frequency signal and converting and storing the energy of the radio frequency signal in the first time slot state; and the communication of the wireless relay system is completed by adopting the stored energy to transmit and receive communication signals in the second time slot state and the third time slot state. The energy collection and the information forwarding can be realized by collecting and storing the radio frequency energy and realizing the energy collection and the information forwarding in a time division mode, so that the relay node collects the energy or drives the wireless relay system to receive and transmit the information by the collected energy, the energy is saved, and the service life of the wireless relay system is prolonged.
The technical features and technical effects of the energy conversion system provided by the embodiment of the invention are the same as those of the method provided by the embodiment of the invention, and are not described herein again.
Furthermore, an embodiment of the present invention also proposes a storage medium having stored thereon a computer program which, when being executed by a processor, carries out the steps of the above-mentioned method.
Furthermore, an embodiment of the present invention also provides a computer device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the above method when executing the program.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.
More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. An energy conversion method applied to a wireless relay system, the method comprising the steps of:
acquiring the current time slot state of the wireless relay system, and judging the time slot type of the current time slot state, wherein the time slot type comprises a first time slot state, a second time slot state and a third time slot state;
when the current time slot state of the wireless relay system is a first time slot state, acquiring a radio frequency signal with a preset frequency, converting the radio frequency signal into a corresponding energy signal, and storing the energy signal in a preset energy storage; the radio frequency signal is a radio frequency signal of a continuous wave band, radio frequency signals of a plurality of discontinuous wave bands or a radio frequency signal of a specific frequency;
acquiring the current energy value in the preset energy storage, and calculating the minimum energy value required to be consumed by the second time slot state and the third time slot state; the current energy value is determined according to the service time, the initial capacity, the service time and the residual capacity of the preset energy storage;
judging whether the difference energy value between the current energy value and the lowest energy value is smaller than a preset energy value or not;
if so, calculating the time required for converting the preset energy value, and adjusting the starting or maintaining time of the second time slot state and the third time slot state;
if not, determining the starting or maintaining time of the first time slot state, the second time slot state and the third time slot state according to preset allocation time;
when the current time slot state of the wireless relay system is a second time slot state, acquiring communication information required to be sent by a source end, and forwarding the communication information to a relay;
and when the current time slot state of the wireless relay system is a third time slot state, acquiring the communication information received by the relay, and forwarding the communication information to a destination terminal.
2. The energy conversion method according to claim 1, wherein the method of acquiring the rf signal with a predetermined frequency, converting the rf signal into a corresponding energy signal, and storing the energy signal in a predetermined energy storage device comprises:
when an energy storage signal is received, the radio frequency energy collection assembly is switched from a dormant state to an awakening state to generate a pulse signal, and a time slot timing program is started to be loaded;
in the process of loading the time slot timing program, the radio frequency energy collection component collects the radio frequency signals with the preset frequency, when the collection of the radio frequency signals with the preset frequency is completed, the radio frequency energy collection component is switched from a wake-up state to a sleep state, and the energy conversion component converts the radio frequency signals with the preset frequency into corresponding energy signals and stores the energy signals in the preset energy storage;
and when the time slot timing is finished, the energy conversion assembly stops working, and the preset energy storage starts to release energy until the second time slot state and the third time slot state are finished.
3. The method of claim 2, wherein before the step of switching the rf energy harvesting component from the sleep state to the awake state to generate a pulse signal and start loading the timeslot timer when receiving an energy storage signal, the method further comprises:
when an energy acquisition signal is received, recording the current time as a first time, and simultaneously acquiring a second time when the residual energy of the preset energy storage is acquired last time;
judging whether the time difference between the first time and the second time is greater than a preset time value or not;
and if the time difference is larger than a preset time value, acquiring the residual energy of the preset energy storage at the current time.
4. The energy conversion method according to claim 1, wherein before the step of obtaining the current timeslot status of the wireless relay system and determining the timeslot type of the current timeslot status, the method further comprises:
acquiring radio frequency tag information carried in the radio frequency signal with the preset frequency, wherein the radio frequency tag information comprises one or more of position, time, frequency and working state;
inputting the radio frequency label information and source end label information carried by the source end into a label mapping table;
and when the radio frequency label information in the label mapping table and the information mapping relation of the source end label information do not correspond, generating early warning information and a corresponding fault log.
5. The energy conversion method according to claim 4, wherein a constant alternating current signal source is connected to both ends of the energy storage, and the step of obtaining the current energy value in the preset energy storage comprises:
collecting alternating voltage peak values at two ends of the energy storage and alternating current peak values flowing through the energy storage through a peak value retainer;
monitoring a phase difference between the alternating voltage signal and the alternating current signal through a phase detection circuit;
and acquiring alternating current, a voltage peak value and a phase difference, and acquiring the current energy value of the energy storage according to the alternating current, the voltage peak value and the phase difference.
6. The energy conversion method according to claim 1, wherein the sum of the time slots of the first time slot state and the second and third time slot states is a time frame T, and T ═ α1T+α2T+α3T, wherein αiIs a slot coefficient, alphai(i∈{1,2,3})，α1+α2+α3＝1。
7. An energy conversion system, the system comprising:
the wireless relay system comprises an acquisition module, a processing module and a processing module, wherein the acquisition module is used for acquiring the current time slot state of the wireless relay system and judging the time slot type of the current time slot state, and the time slot type comprises a first time slot state, a second time slot state and a third time slot state;
the conversion module is used for acquiring a radio frequency signal with a preset frequency when the current time slot state of the wireless relay system is a first time slot state, converting the radio frequency signal into a corresponding energy signal and storing the energy signal in a preset energy storage; the radio frequency signal is a radio frequency signal of a continuous wave band, radio frequency signals of a plurality of discontinuous wave bands or a radio frequency signal of a specific frequency;
acquiring the current energy value in the preset energy storage, and calculating the minimum energy value required to be consumed by the second time slot state and the third time slot state; the current energy value is determined according to the service time, the initial capacity, the service time and the residual capacity of the preset energy storage;
judging whether the difference energy value between the current energy value and the lowest energy value is smaller than a preset energy value or not;
if so, calculating the time required for converting the preset energy value, and adjusting the starting or maintaining time of the second time slot state and the third time slot state;
if not, determining the starting or maintaining time of the first time slot state, the second time slot state and the third time slot state according to preset allocation time;
the forwarding module is used for acquiring communication information required to be sent by a source end when the current time slot state of the wireless relay system is a second time slot state, and forwarding the communication information to a relay;
and the receiving module is used for acquiring the communication information received by the relay and forwarding the communication information to a destination terminal when the current time slot state of the wireless relay system is a third time slot state.
8. A readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the energy conversion method according to any one of claims 1-6.
9. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the energy conversion method according to any one of claims 1-6 when executing the program.
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| CN113114327B (en) * | 2021-03-19 | 2022-12-02 | 中国联合网络通信集团有限公司 | Signal relay method, signal identification method, device and equipment |
| CN113891366B (en) * | 2021-10-15 | 2024-02-06 | 中国联合网络通信集团有限公司 | Relay device control method, device, system and storage medium |
| CN115131952B (en) * | 2022-06-15 | 2023-10-24 | 武汉拓宝科技股份有限公司 | Narrowband communication method and system |
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