CN108289304B - Information processing method, intelligent gateway and storage medium - Google Patents
Information processing method, intelligent gateway and storage medium Download PDFInfo
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- CN108289304B CN108289304B CN201710405540.1A CN201710405540A CN108289304B CN 108289304 B CN108289304 B CN 108289304B CN 201710405540 A CN201710405540 A CN 201710405540A CN 108289304 B CN108289304 B CN 108289304B
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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
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/242—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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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
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/245—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account received signal strength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/16—Gateway arrangements
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Abstract
The embodiment of the invention discloses an information processing method, an intelligent gateway and a storage medium. The information processing method is applied to an intelligent gateway and comprises the following steps: generating a first control instruction of a first wired signal and generating a second control instruction of a second wired signal; determining a first reading power according to the first control instruction, receiving the first wired signal based on the first reading power so as to obtain a first receiving strength of the first wired signal, and reading the second wired signal according to the second control instruction so as to obtain a second receiving strength of the second wired signal; determining a first link loss value of the first wired signal in the transmission link according to the first receiving strength; determining a second link loss value of the second wired signal in the transmission link according to the second receiving strength, and calculating a third link loss value of the third wired signal at the terminal of the transmission link according to the first link loss value and the second link loss value; wherein the third wired signal is generated based on the wireless signal.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to an information processing method, an intelligent gateway, and a storage medium.
Background
The indoor antenna system is generally an antenna system disposed indoors for indoor positioning.
A room antenna system comprising:
the indoor antenna is used for detecting a wireless signal fed back by the terminal;
and the passive circuit is connected with the indoor antenna and used for detecting that the wireless signal fed back by the terminal returns to the base station and positioning the terminal.
Under a general condition, indoor positioning of a terminal is performed by using a room antenna, and how to monitor power of the room antenna and the like is specifically performed, so that on one hand, a signal transmission quality requirement of the room antenna can be met, and on the other hand, power consumption can be reduced as much as possible.
Disclosure of Invention
In view of the above, embodiments of the present invention are directed to an information processing method, an intelligent gateway, and a storage medium, which at least partially solve the above problems.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a first aspect of an embodiment of the present invention provides an information processing method, which is applied to an intelligent gateway, and includes:
generating a first control instruction of a first wired signal and generating a second control instruction of a second wired signal;
determining a first read power according to the first control instruction, and receiving the first wired signal based on the first read power, thereby obtaining a first reception strength of the first wired signal, wherein the first wired signal is generated based on a Radio Frequency Identification (RFID) signal;
reading the second wired signal according to the second control instruction, so as to obtain a second receiving strength of the second wired signal; wherein the second wired signal is generated based on a Bluetooth signal;
determining a first link loss value of the first wired signal in a transmission link according to the first receiving strength; determining a second link loss value of the second wired signal in the transmission link according to the second receiving strength, and calculating a third link loss value of a third wired signal in the transmission link according to the first link loss value and the second link loss value; wherein the third wired signal is generated based on a wireless signal having a signal frequency between the signal frequency of the RFID signal and the signal frequency of the Bluetooth signal.
Based on the above solution, the determining a first reading power according to the first control instruction, and receiving the first wired signal based on the first reading power to obtain a first receiving strength of the first wired signal includes:
sequentially reading the first wired signal at the first reading power from high to low until the first signal receiving strength is equal to a preset value;
the reading the second wired signal according to the second control instruction so as to obtain a second receiving strength of the second wired signal includes:
sequentially reading the first wired signals at the first reading power from high to low until the second signal receiving intensity is equal to a preset value;
determining a first link loss value of the first wired signal in a transmission link according to the first reception strength includes:
calculating the first link loss value and the second link loss value by adopting the following formulas;
wherein, the LOSS1When the first link loss value is the first link loss value and the N is the number of times that the RFID reader reads the first wired signal when the first signal receiving strength is equal to a preset value; the Pn is the first reading power of the nth time; the RPn is the first reception strength of the nth time; said Q1A transmission loss for the RFID signal to a receive antenna that generated the first wired signal; and N is a positive integer less than N.
Based on the above scheme, the determining a second link loss value of the second wired signal in the transmission link according to the second reception strength includes:
calculating the second link loss value by using the following formula;
LOSS2＝PO-PRSSI-Q2
wherein, the LOSS2For the second chain loss value, PoIs the transmission power of the bluetooth signal; the P isRSSIThe second receiving strength; said Q2Is a transmission loss of the bluetooth signal to a receiving antenna that generates the second wired signal.
Based on the above solution, the calculating a third link loss value of a third wired signal in the transmission link according to the first link loss value and the second link loss value includes:
and calculating the third link loss value of a third wired signal converted from the wireless signal by adopting an interpolation algorithm according to the first link loss value and the second link loss value, the signal frequency of the Bluetooth signal, the signal frequency of the RFID signal and the signal frequency of the wireless signal.
Based on the above scheme, the method further comprises:
generating monitoring data according to the receiving parameters of the first wired signal and/or the second wired signal;
and sending the monitoring data to the server.
Based on the above scheme, the method further comprises:
generating a control instruction;
sending the control command to an indoor antenna integrated with a Bluetooth beacon and an RFID beacon through a wired transmission link, wherein the Bluetooth beacon is used for generating the Bluetooth signal; the RFID beacon is used to generate the RFID signal.
A second aspect of an embodiment of the present invention provides an intelligent gateway, including:
the link loss calculation module is used for generating a first control instruction of the first wired signal and generating a second control instruction of the second wired signal;
the radio frequency identification RFID reader-writer is used for determining first reading power according to the first control instruction and receiving the first wired signal based on the first reading power so as to obtain first receiving intensity of the first wired signal, wherein the first wired signal is generated based on an RFID signal;
the Bluetooth chip is used for reading the second wired signal according to the second control instruction so as to obtain second receiving intensity of the second wired signal; wherein the second wired signal is generated based on a Bluetooth signal;
the link loss calculation module is further configured to determine a first link loss value of the first wired signal in a transmission link according to the first reception strength; determining a second link loss value of the second wired signal in the transmission link according to the second receiving strength, and calculating a third link loss value of a third wired signal in the transmission link according to the first link loss value and the second link loss value; wherein the third wired signal is generated based on a wireless signal having a signal frequency between the signal frequency of the RFID signal and the signal frequency of the Bluetooth signal.
Based on the above scheme, the first control instruction is specifically configured to control the RFID reader to sequentially read the first wired signals from the high to low first read powers until the first signal reception intensity is equal to a preset value;
the link loss calculation module is specifically configured to calculate the first link loss value and the second link loss value by using the following formulas;
wherein, the LOSS1When the first link loss value is the first link loss value and the N is the number of times that the RFID reader reads the first wired signal when the first signal receiving strength is equal to a preset value; the Pn is the first reading power of the nth time; the RPn is the first reception strength of the nth time; said Q1A transmission loss for the RFID signal to a receive antenna that generated the first wired signal; and N is a positive integer less than N.
Based on the above scheme, the link loss calculation module is specifically configured to calculate the second link loss value by using the following formula;
LOSS2＝PO-PRSSI-Q2
wherein, the LOSS2For the second chain loss value, PoIs the transmission power of the bluetooth signal; the P isRSSIThe second receiving strength; said Q2Is a transmission loss of the bluetooth signal to a receiving antenna that generates the second wired signal.
Based on the above scheme, the link loss calculation module is further configured to calculate the third link loss value of the third wired signal into which the wireless signal is converted by using an interpolation algorithm according to the first link loss value and the second link loss value, and by combining the signal frequency of the bluetooth signal, the signal frequency of the RFID signal, and the signal frequency of the wireless signal.
Based on the above scheme, the intelligent gateway further comprises:
a first interface, connected to a room antenna system, for receiving the first wired signal and the second wired signal provided by the room antenna system, wherein the room antenna system includes: the indoor branch antenna is formed by an RFID beacon and a Bluetooth beacon; the RFID is to provide the RFID signal that generates the first wired signal; the bluetooth beacon is to provide the bluetooth signal that generated the second wired signal;
and the second interface is connected with the server and is used for sending the first wired signal and/or the second wired signal to the server or receiving information from the server.
Based on the above scheme, the intelligent gateway is further configured to generate monitoring data based on the receiving parameters of the first wired signal and the second wired signal;
the second interface is specifically configured to report the monitoring data to the server.
A third aspect of the embodiments of the present invention provides a computer storage medium, where computer-executable instructions are stored, and after being executed by a processor, the computer-executable instructions can implement any one or more of the above-mentioned information processing methods.
According to the information processing method, the intelligent gateway and the storage medium provided by the embodiment of the invention, the intelligent gateway firstly calculates the first link loss value of the first wired signal generated based on the RFID signal, then calculates the second link loss value of the second wired signal generated based on the Bluetooth signal, and then calculates the third link loss value transmitted in the same wired transmission link based on the two link loss values. If the chain calculation value is calculated, the initial power of the indoor branch antenna for transmitting signals in the wired transmission link can be accurately controlled, so that the transmission loss can be reduced while the transmission quality is ensured.
Drawings
Fig. 1 is a schematic flowchart of a first information processing method according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a second information processing method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a first intelligent gateway according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a second intelligent gateway according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating a connection between an indoor diversity antenna system and an intelligent gateway according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a third intelligent gateway according to an embodiment of the present invention.
Detailed Description
The technical solution of the present invention is further described in detail with reference to the drawings and the specific embodiments of the specification.
As shown in fig. 1, the present embodiment provides an information processing method applied in an intelligent gateway, including:
step S110: generating a first control instruction of a first wired signal and generating a second control instruction of a second wired signal;
step S120: determining a first reading power according to the first control instruction, and receiving the first wired signal based on the first reading power so as to obtain a first receiving strength of the first wired signal, wherein the first wired signal is generated based on an RFID signal;
step S130: reading the second wired signal according to the second control instruction, so as to obtain a second receiving strength of the second wired signal; wherein the second wired signal is generated based on a Bluetooth signal;
step S140: determining a first link loss value of the first wired signal in a transmission link according to the first receiving strength; determining a second link loss value of the second wired signal in the transmission link according to the second receiving strength, and calculating a third link loss value of a third wired signal in the transmission link according to the first link loss value and the second link loss value; wherein the third wired signal is generated based on a wireless signal having a signal frequency between the signal frequency of the RFID signal and the signal frequency of the Bluetooth signal.
The embodiment provides an information processing method, which is applied to an intelligent gateway, wherein the intelligent gateway is integrated with an RFID reader and a bluetooth chip at the same time, and can read a first wired signal corresponding to an RFID signal and also can read a second wired signal corresponding to a bluetooth signal.
In this embodiment, the RFID signal may be a wireless signal with a frequency lower than 800MHz, and the bluetooth signal may be a wireless signal with a frequency of 2.4 Ghz. The RFID signal and the Bluetooth signal are received by an antenna, then are respectively converted into the first wired signal and the second wired signal, and are transmitted to the intelligent gateway through a wired transmission link.
In this embodiment, the intelligent network element may calculate the first and second link loss values based on the receiving strength of the first and second wired signals, and combining the transmitting strength of the antenna side. The first link loss value may be: and the transmission loss of the first wired signal is transmitted from the radio frequency feeder of the antenna to the wired transmission link passing by the intelligent gateway. The second link loss value may be: and the second wired signal is transmitted from the radio frequency feeder of the antenna to the transmission loss of the wired transmission link passing by the intelligent gateway.
Of course, there are various ways to calculate the first link loss value and the second link loss value, and the calculation is not limited to the calculation based on the difference between the transmission intensity and the reception intensity.
In step S140 in this embodiment, a third link loss value of a third wired signal corresponding to a wireless signal before the bluetooth signal and the RFID signal is further calculated according to the first link loss value and the second link loss value. The third link loss value may be: transmission loss consumed by the transmission of the third wired signal from the radio frequency feeder of the antenna to the intelligent gateway through the wired transmission link.
In this embodiment, the wireless signal may be a mobile signal, and the mobile signal may be: in a mobile communication system, a base station can receive a 2G signal, a 3G signal, a 4G signal, a 5G signal, or the like.
In this embodiment, the frequency of the mobile signal is located between the RFID signal and the bluetooth signal, and when the wireless signals such as the corresponding RFID signal, bluetooth signal, or mobile signal are converted into wired signals, the wireless signals are usually performed based on the signal frequency of the wireless signals, so the intelligent gateway can distinguish the signal frequencies of the wireless signals and/or the wireless signals corresponding to various wired signals according to the transmission frequency of the signals in the wired transmission link.
Optionally, the step S140 may include:
and sequentially reading the first wired signal at the first reading power from high to low until the first signal receiving strength is equal to a preset value.
The intelligent gateway can control the RFID reader-writer to reduce the reading power from high to low, and read the first wired signal until the reading reaches the receiving strength of the first signal (namely the receiving strength of the first signal) equal to a preset value, and then the reading is stopped. In this embodiment, the first read power of the RFID reader may be reduced according to a predetermined power step. The predetermined value may be a predefined value of the received signal power.
In this embodiment, the first read power may be reduced by a predetermined power step. The power step size may be one, so that the power step sizes used for any two read power down adjustments are equal.
In some embodiments, the power step size may include: and step size set. A plurality of step values which are not equal are stored in the step size set. And when the nth reading power is adjusted downwards, selecting a step value corresponding to the nth adjustment from the step set to adjust downwards. In the present embodiment, it is preferable that: the step value used in one round of reading power adjustment is smaller and smaller, so that compared with the equal step value, the situation that the receiving intensity is equal to the preset value due to the fact that the previous adjustment is already close to the preset value and the current corresponding reading power exceeds the situation that the signal cannot be read early after the adjustment of large step length can be avoided. Therefore, in order to improve the accuracy in this embodiment, the step value of the power down is also gradually adjusted down when the read power is adjusted.
The step S140 further includes:
calculating the first link loss value by adopting the following formula;
wherein, when the LOSS is used1When the first link loss value is the first link loss value and the N is the number of times that the RFID reader reads the first wired signal when the first signal receiving strength is equal to a preset value; the Pn is the first reading power of the nth time; the RPn is the first reception strength of the nth time; said Q1A transmission loss for the RFID signal to a receive antenna that generated the first wired signal; and N is a positive integer less than N.
In the embodiment, the intelligent gateway may calculate the first link loss value by using the above formula without knowing the transmission strength of the first wired signal and the second wired signal at the antenna side.
In this embodiment, the intelligent gateway determines that the signal strength of the first wired signal is not equal to the preset value, and the signal strength is reduced to the preset value, which is regarded as a round of reading of the wired signal.
There are also many ways in which the second link loss value can be calculated, and an alternative is provided by:
determining a second link loss value of the second wired signal in the transmission link according to the second reception strength includes:
calculating the second link loss value by using the following formula;
LOSS2＝PO-PRSSI-Q2
wherein, the LOSS2For the second chain loss value, PoIs the transmission power of the bluetooth signal; the P isRSSIThe second receiving strength; said Q2Is a transmission loss of the bluetooth signal to a receiving antenna that generates the second wired signal.
The P isoThe transmission power may be a transmission power negotiated in advance for the intelligent gateway and the bluetooth beacon, or may be a default transmission power set by the bluetooth beacon itself, and the intelligent gateway obtains the transmission power in an information query manner.
Optionally, the step S140 may include:
and calculating the third link loss value of a third wired signal converted from the wireless signal by adopting an interpolation algorithm according to the first link loss value and the second link loss value, the signal frequency of the Bluetooth signal, the signal frequency of the RFID signal and the signal frequency of the wireless signal.
And calculating the third link loss value by adopting an interpolation algorithm based on the first link loss value and the second link loss value, and combining the signal frequency of the Bluetooth signal, the signal frequency of the RFID signal and the signal frequency of the wireless signal.
The interpolation algorithm is a method of creating a suitable specific function by using function values of a plurality of points known in a certain interval of the function f (x), and using values of the specific function as approximate values of the function f (x) at other points in the interval, which is called an interpolation method. If this particular function is a polynomial, it is referred to as an interpolating polynomial.
In this embodiment, the dependent variable of f (x) may be a signal frequency of a wireless signal corresponding to the wired signal, and the function value may be a link loss value. For example, when the dependent variable is a signal frequency of a bluetooth signal, the function value is the second link loss value; and when the dependent variable is the signal frequency of the RFID signal, the function value is the first link loss value. In this embodiment, the signal frequencies and the corresponding link loss values of the bluetooth signal and the RFID signal are known, and after the signal frequency of the wireless signal of the third link loss value to be detected of the mobile signal is known, the third link loss value can be estimated according to the interpolation polynomial and the like.
In some embodiments, the calculating of the third chain loss value in step S140 may further include:
and fitting based on the signal frequency of the Bluetooth signal, the second link loss value, the signal frequency of the RFID signal and the first link loss value to obtain a fitting function, and then calculating the third link loss value by using the fitting function. The fit here may be a linear fit.
In summary, there are many ways to calculate the third link loss value in step S140, and the method is not limited to any one of the above; but the third link loss value is calculated by utilizing an interpolation algorithm, so that the method has the characteristics of small calculation amount and high calculation accuracy.
In some embodiments, as shown in fig. 2, the method further comprises:
step S150: generating monitoring data according to the receiving parameters of the first wired signal and/or the second wired signal;
step S160: and sending the monitoring data to the server.
And the intelligent gateway also determines the state information of the wired transmission link and/or the equipment integrated with the Bluetooth beacon and the radio frequency beacon according to the receiving condition of the first wired signal and/or the second wired signal.
The receiving parameters are composed of various information indicating the receiving state of the wired signal, such as the receiving power, the received signal strength, the receiving delay, and whether the wired signal is successfully received. The receiving parameter can reflect whether the indoor branch antenna integrated with the RFID beacon and the Bluetooth beacon is normal or not in the current priority transmission link. If the wired transmission link is communicated and the indoor branch antenna integrating the Bluetooth beacon and the RFID beacon works normally, the intelligent gateway can receive the corresponding wired signal, and has the characteristics of large enough receiving strength or small enough receiving time delay, otherwise, the intelligent gateway can be out of order. When the fault is determined, the indoor branch antenna integrated with the Bluetooth beacon and the RFID beacon can be controlled to send signals according to a preset detection rule according to the sending of the control instruction, the intelligent gateway receives the information, and then the positions of the fault can be checked one by one.
For example, the method further comprises:
when a third wired signal corresponding to a mobile signal, the first wired signal and the second wired signal are all abnormal, a fault point can be preliminarily positioned and located in a wired transmission link or an antenna oscillator of the indoor antenna when the Bluetooth beacon, the first wired signal and the second wired signal are all abnormal; the antenna element can receive signals sent by the Bluetooth beacon or the RFID beacon;
when the first wired signal is normally received and the second wired signal is abnormal, a fault point can be preliminarily positioned to be positioned in the Bluetooth beacon;
when the second wired signal is received normally and the first wired signal is abnormal, a fault point located in the RFID beacon can be preliminarily positioned;
when the third wired signal corresponding to the mobile signal is received normally and the first wired signal and the second wired signal are abnormal, the position of the fault point between the antenna oscillator for receiving the Bluetooth signal and the radio frequency suction signal and the radio frequency feeder line can be preliminarily positioned.
In this way, it is obvious that corresponding monitoring data can be generated according to the received parameters. The monitoring data may directly include the receiving parameters, or may include: the abnormality indication information indicating whether or not there is an abnormality may further include abnormality analysis information for analyzing the abnormality.
In a word, the intelligent network manager receives the receiving parameters, generates monitoring data, and forwards the monitoring data to the server, where the server can be a management and maintenance server, and the management and maintenance server pair is convenient to include: and the indoor sub-antenna system integrated with the indoor sub-antennas of the Bluetooth beacon and the radio frequency beacon is maintained and managed. The indoor antenna system can be: the system locates the terminal indoors through information interaction with the terminal.
Optionally, the method further comprises:
generating a control instruction;
sending the control command to an indoor antenna integrated with a Bluetooth beacon and an RFID beacon through a wired transmission link, wherein the Bluetooth beacon is used for generating the Bluetooth signal; the RFID beacon is used to generate the RFID signal.
Since the radio frequency beacon and the bluetooth beacon are both wireless communication devices, if the devices need to be controlled, the control device which usually sends a control instruction needs to generate a corresponding wireless signal to send to the beacon. In this embodiment, however, the smart gateway generates the port control command and transmits the control command to the indoor distribution antenna via the wired transmission link. Obviously, at this time, the signal carrying the control command is a wired signal. The control commands here may be: a transmission power command of a wireless signal such as a power control command, a frequency control command of a signal transmission frequency, and the like; in short, the control command here may be various commands for controlling the indoor sub-antenna to perform corresponding operations, and is not limited to any one of the above.
In some embodiments, the server may also be a positioning server, and the positioning server may perform accurate positioning on the terminal according to the content of the intelligent gateway receiving the first wired signal and the second wired signal.
In this embodiment, the first link loss value, the second link loss value, and the third link loss value may be used in an intelligent gateway and/or a management and maintenance server, and are used to determine the transmission power of various wireless signals of the indoor branch antenna, for example, the transmission power of a bluetooth signal, the transmission power of an RFID signal, and the transmission power of a mobile signal.
As shown in fig. 3, this embodiment further provides an intelligent gateway, including:
the link loss calculation module 110 is configured to generate a first control instruction of a first wired signal and generate a second control instruction of a second wired signal;
the RFID reader 120 is configured to determine a first reading power according to the first control instruction, and receive the first wired signal based on the first reading power, so as to obtain a first receiving strength of the first wired signal, where the first wired signal is generated based on an RFID signal;
the bluetooth chip 130 is configured to read the second wired signal according to the second control instruction, so as to obtain a second receiving strength of the second wired signal; wherein the second wired signal is generated based on a Bluetooth signal;
the link loss calculating module 110 is further configured to determine a first link loss value of the first wired signal in the transmission link according to the first receiving strength; determining a second link loss value of the second wired signal in the transmission link according to the second receiving strength, and calculating a third link loss value of a third wired signal in the transmission link according to the first link loss value and the second link loss value; wherein the third wired signal is generated based on a wireless signal having a signal frequency between the signal frequency of the RFID signal and the signal frequency of the Bluetooth signal.
In this embodiment, the link loss calculating module 110 may correspond to a processor or a processing circuit in the intelligent gateway.
The processor may be a central processing unit, a microprocessor, a digital signal processor, an application processor, or various processing circuits such as a programmable array. The processing circuit may be an application specific integrated circuit.
The processor or processing circuit may implement the above-described calculation of the link loss value by executing various executable instructions, such as a computer program.
Optionally, the first control instruction is specifically configured to control the RFID reader 120 to sequentially read the first wired signal from the high to the low first read powers until the first signal receiving strength is equal to a preset value; that is, the RFID reader 120 is specifically configured to sequentially read the first wired signal at the first reading power from high to low based on a first control instruction until the first signal receiving strength is equal to a preset value.
The link loss calculating module 110 is specifically configured to calculate the first link loss value and the second link loss value by using the following formulas;
wherein, when the LOSS is used1When the first link loss value is the first link loss value and the N is the number of times that the RFID reader reads the first wired signal when the first signal receiving strength is equal to a preset value; the Pn is the first reading power of the nth time; the RPn is the first reception strength of the nth time; said Q1A transmission loss for the RFID signal to a receive antenna that generated the first wired signal; and N is a positive integer less than N.
The link loss calculation module 110 calculates the link loss value in the above manner, and can calculate the first link loss value without knowing the transmission power of the transmitting terminal.
In some embodiments, the link loss calculating module 110 is specifically configured to calculate the second link loss value by using the following formula;
LOSS2＝PO-PRSSI-Q2
wherein, the LOSS2For the second chain loss value, PoIs the transmission power of the bluetooth signal; the P isRSSIThe second receiving strength; said Q2Is a transmission loss of the bluetooth signal to a receiving antenna that generates the second wired signal.
Optionally, the link loss calculating module 110 is further configured to calculate the third link loss value of a third wired signal into which the wireless signal is converted by using an interpolation algorithm according to the first link loss value and the second link loss value, and by combining the signal frequency of the bluetooth signal, the signal frequency of the RFID signal, and the signal frequency of the wireless signal.
In this embodiment, in order to ensure the accuracy of the calculated third loss value, an interpolation algorithm is used to calculate the third loss value. In a specific implementation process, the link loss calculation module 110 may further obtain a fitting function for estimating the third link loss value through function fitting according to the first link loss value and the second link loss value, in combination with the signal frequency of the bluetooth signal, the signal frequency of the RFID signal, and the signal frequency of the wireless signal, and then calculate the third link loss value by using the fitting function.
As shown in fig. 4, the intelligent gateway further includes:
a first interface 140 connected to a room antenna system for receiving the first wired signal and the second wired signal provided by the room antenna system, wherein the room antenna system comprises: the indoor branch antenna is formed by an RFID beacon and a Bluetooth beacon; the RFID is to provide the RFID signal that generates the first wired signal; the bluetooth beacon is to provide the bluetooth signal that generated the second wired signal;
and a second interface 150 connected to the server, for transmitting the first wired signal and/or the second wired signal to the server, or receiving information from the server.
In some embodiments, the intelligent gateway is further configured to generate monitoring data based on the received parameters of the first wired signal and the second wired signal;
the second interface 150 is specifically configured to report the monitoring data to the server.
The specific contents of the monitoring generation method and the monitoring data can be referred to the foregoing embodiments, and are not repeated here. In short, the intelligent gateway of this embodiment may also be used to monitor the indoor antenna system.
The present embodiment also provides a computer storage medium, where the computer storage medium stores computer-executable instructions, and the computer-executable instructions can execute the information processing method provided in any one of the foregoing technical solutions after being executed, and specifically can execute the information processing method shown in fig. 1 and/or fig. 2.
The computer storage medium described in this embodiment may be: various media capable of storing program codes, such as a removable storage device, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, may be selected as the non-transitory storage medium.
The computer-executable instructions may be instructions of a computer program or the like.
In this embodiment, an indoor antenna integrated with an RFID beacon and a bluetooth beacon is further provided, including: the antenna comprises a shell, a radio frequency feeder and an antenna oscillator positioned in the shell;
a Bluetooth beacon is also arranged in the shell; or, a Bluetooth beacon is also arranged outside the shell;
an RFID beacon is also arranged in the shell; or, an RFID beacon is also installed outside the shell.
The bluetooth beacon can be a bluetooth device for receiving and transmitting bluetooth signals; the RFID beacon may be an RFID device that transmits an RFID signal.
The Bluetooth beacon and the RFID beacon are arranged separately from the antenna oscillator.
The antenna oscillator is connected with the radio frequency feeder line and used for transmitting mobile signals outwards or receiving mobile signals;
the antenna oscillator is also used for receiving the Bluetooth signal and converting the Bluetooth signal into a second wired signal corresponding to the Bluetooth signal, and receiving the RFID signal and converting the RFID signal into a first wired signal;
and the radio frequency feeder is used for transmitting the first wired signal and the second wired signal to the Bluetooth gateway through a wired transmission link.
Optionally, the bluetooth beacon and the RFID beacon also separate devices for mutual interference.
In some embodiments, the bluetooth beacon and the RFID are both located in a first region of a pattern of the antenna element; the first region includes: a null position of the pattern; in this embodiment, specifically, the bluetooth antenna of the bluetooth beacon is located at the zero point position of the directional pattern or in the vicinity of the zero point position;
and/or the presence of a gas in the gas,
the antenna oscillator is located in the opposite direction of the effective radiation direction of the Bluetooth beacon and the RFID beacon.
The Bluetooth beacon is positioned in the opposite direction or the adjacent direction of the opposite direction of the effective radiation direction of the RFID beacon.
The RFID beacon is positioned in the opposite direction or the adjacent direction of the opposite direction of the effective radiation direction of the Bluetooth beacon.
The zero point position of the directional diagram is theoretically a position where the signal strength is zero, but is a zero position which is difficult to reach in the practical application process, and even the zero point position still partially moves the signal and radiates outwards from the position. In this embodiment, the first area includes the zero point, but is not limited to the zero point, and also includes a position around the zero point, and the bluetooth beacon and the RFID beacon are located in the first area, so that on one hand, the bluetooth beacon and the RFID beacon can receive the wireless signal sent by the antenna element, and on the other hand, the bluetooth beacon and the RFID beacon can reduce the absorption of the moving signal radiated by the antenna element as much as possible. In a word, the absorption power of the Bluetooth antenna made of metal or alloy in the Bluetooth beacon and the RFID beacon to the mobile signal is small, so that the absorption of the Bluetooth beacon and the RFID beacon to the mobile signal is reduced, and the mobile signal receiving capability and the mobile signal transmitting capability of the antenna oscillator are ensured.
In addition, in the bluetooth antenna in the bluetooth beacon in this embodiment, when transmitting a bluetooth signal or receiving a bluetooth signal, the transmission power in each direction is also different, and in this embodiment, the direction in which the signal strength of the bluetooth signal reaches the preset condition is referred to as the effective radiation direction. For example, the direction in which the radiation power radiated by the bluetooth beacon is greater than the concentration of the preset proportion can be referred to as the effective radiation direction. The opposite direction of the effective radiation direction may be: the radiated power of the bluetooth signal is very small. If the antenna element is arranged in the opposite direction of the effective radiation of the Bluetooth beacon, the Bluetooth signals absorbed by the antenna element are reduced as much as possible, so that the effective radiation of the Bluetooth signals of the Bluetooth beacon is ensured, and the Bluetooth beacon can radiate more signal power to the terminal as much as possible.
Similarly, the antenna element is located in the opposite direction of the effective radiation direction of the RFID beacon, and the same reason is used to reduce the phenomenon that the RFID signal is absorbed and thus radiated to the environment is reduced.
In specific implementation, the bluetooth beacon and the RFID beacon also need to perform signal interaction with an antenna element of a room antenna, so that the distance between the bluetooth beacon and the antenna element and.
Specific examples are provided below in connection with any of the above embodiments:
example one:
as shown in fig. 5, the present example provides a room division antenna system including:
the indoor branch antenna and the intelligent gateway are integrated with a Bluetooth beacon and an RFID beacon;
the Bluetooth gateway is connected with the indoor sub-antenna through a wired link and used for receiving wired signals which are transmitted by the indoor sub-antenna through the wired link and are generated based on the Bluetooth signals.
The intelligent gateway and the base station are connected to a wired transmission link connected with an indoor branch antenna integrated with a Bluetooth beacon and an RFID beacon through a combiner. The wired transmission link is a component of a topological network of the passive indoor antenna system.
The intelligent gateway is also connected with the server.
The intelligent gateway can realize the monitoring of the indoor antenna state, the indoor antenna link loss calculation and the remote monitoring of the Bluetooth beacon.
As shown in fig. 6, this example further provides an intelligent gateway, including: interface 1, link loss calculation module, FID reader, Bluetooth (BLE) chip.
The link loss calculation module is mainly used for calculating the link loss from the intelligent gateway to the antenna, the card reading power (Pn) of the RFID reader-writer can be adjusted from high to low through RFID power adjustment, and the signal strength (RSSI) detection value (RPn) of the RFID is read through the reader-writer every time the card reading power (Pn) is adjusted (for example, 1dB is reduced), so that the calculation of the link loss can be completed. Assuming that the RSSI detection value cannot be returned by the RFID reader/writer when the transmission power of the RFID is lowered to a certain value after the (n + 1) -th adjustment, the RSSI value of the RFID at the nth time is considered as the value of the reception sensitivity (Rs), and the transmission power at this time is Ps. Suppose the null loss between the RFID tag and the antenna is Q. The link loss value of the reader can be estimated by the following formula:
since the working frequency of the RFID is 800MHz, we only obtain the chain loss value of 800 MHz. Similarly, we can obtain the link loss value of the bluetooth working frequency 2.4G through the RSSI obtained by the bluetooth gateway. By an interpolation algorithm, we can obtain the link loss value of the whole working frequency band from the low frequency 800MHz to the high frequency 2.4 GHz.
Since the intelligent gateway is provided with an interface 2 with an indoor antenna system, the interface 2 can be connected with one or more indoor branch antenna systems. Therefore, the indoor antenna system can be used for wired connection, the Bluetooth beacon, the RFID beacon and the intelligent gateway are integrated on the indoor branch antenna, so that the managed Bluetooth beacon range is far beyond 30 meters, the defect that the existing Bluetooth gateway can only manage the Bluetooth beacon within the range of less than 30 meters can be solved, and the management capability of the Bluetooth gateway is expanded.
The interface 1 is mainly used for transmitting all useful data such as link loss values and antenna state information which need to be transmitted to the server through a General Packet Radio Service (GPRS) or an ethernet.
The RFID reader/writer includes: the base band circuit is connected with the radio frequency circuit, stores an RFID protocol and comprises a radio frequency controller. The radio frequency circuit comprises a modulator and a demodulator, wherein the modulator is used for radio frequency modulation, and the demodulator is used for radio frequency demodulation. The radio frequency controller controls the work of the radio frequency circuit based on the RFID protocol.
The bluetooth chip includes: the memory stores BLE 4.0 protocol, Microprocessor (MCU) and radio frequency controller. The radio frequency controller is used for radio frequency signal processing control, and the MCU is used for various data processing and overall control.
And the link loss calculation module is used for reading power control, RFID RSSI detection and Bluetooth RSSI detection. The read power control can be used for regulating and controlling a first read power and a second read power; the RFID RSSI detection is used for determining first signal receiving strength based on corresponding first reading power; the bluetooth RSSI detection is configured to determine a second signal received strength based on the corresponding second read power.
The intelligent gateway that this example provided, on the basis of RFID read write line and bluetooth gateway, added the chain and decreased the calculation module, realized losing the estimation from 800M to 2.4GHz scope chain.
The intelligent gateway can also be used for calculating the accurate link loss value of the RFID frequency point by adjusting the reading rate of the RFID reader-writer and according to the RSSI read back.
The intelligent gateway can also calculate the accurate link loss value of the Bluetooth frequency point through the RSSI signal value of the Bluetooth beacon read by the Bluetooth gateway.
The intelligent gateway can also obtain the link loss value of the whole frequency band through the link loss value of the RFID frequency point and the link loss value of the Bluetooth frequency point through interpolation.
The intelligent gateway can also be used for being connected with the indoor branch antenna system, so that the ultra-remote monitoring of the Bluetooth beacon is realized.
The interface 1 part can realize real-time report of monitoring data by connecting with GPRS or Ethernet.
In a word, the intelligent gateway can calculate the link loss of the whole frequency band range from the gateway to the antenna by adjusting the reading signal power of the RFID, the received RSSI signal strength of the RFID and the RSSI signal strength of the Bluetooth beacon. In addition, the intelligent gateway can make the distance of the Bluetooth beacon which can be managed by the gateway far exceed 30 meters by means of a wired transmission link of the indoor antenna system, so that the distribution density of the gateway is reduced, and the monitoring cost is reduced.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all the functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: a mobile storage device, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (9)
1. An information processing method, applied to an intelligent gateway, includes:
generating a first control instruction of a first wired signal and generating a second control instruction of a second wired signal;
determining a first reading power according to the first control instruction, and receiving the first wired signal based on the first reading power so as to obtain a first receiving strength of the first wired signal, wherein the first wired signal is generated based on a Radio Frequency Identification (RFID) signal;
reading the second wired signal according to the second control instruction, so as to obtain a second receiving strength of the second wired signal; wherein the second wired signal is generated based on a Bluetooth signal;
determining a first link loss value of the first wired signal in a transmission link according to the first receiving strength; determining a second link loss value of the second wired signal in the transmission link according to the second receiving strength, and calculating a third link loss value of a third wired signal in the transmission link according to the first link loss value and the second link loss value; wherein the third wired signal is generated based on a wireless signal, wherein a signal frequency of the wireless signal is between a signal frequency of the RFID signal and a signal frequency of the Bluetooth signal;
wherein the determining a first link loss value of the first wired signal in a transmission link according to the first reception strength comprises:
calculating the first link loss value by adopting the following formula;
wherein, the LOSS1The number of times that the RFID reader reads the first wired signal is the first link loss value, and the N is the number of times that the first receiving strength is equal to a preset value; the Pn is the first reading power of the nth time; the RPn is the first reception strength of the nth time; said Q1A transmission loss for the RFID signal to a receive antenna that generated the first wired signal; n is a positive integer less than N;
determining a second link loss value of the second wired signal in the transmission link according to the second reception strength includes:
calculating the second link loss value by using the following formula;
LOSS2＝PO-PRSSI-Q2
wherein, the LOSS2For the second chain loss value, POIs the transmission power of the bluetooth signal; the P isRSSIThe second receiving strength; said Q2A transmission loss for the bluetooth signal to a receive antenna that generated the second wired signal;
the calculating a third link loss value of a third wired signal in the transmission link according to the first link loss value and the second link loss value includes:
and calculating the third link loss value of a third wired signal converted from the wireless signal by adopting an interpolation algorithm according to the first link loss value and the second link loss value, the signal frequency of the Bluetooth signal, the signal frequency of the RFID signal and the signal frequency of the wireless signal.
2. The method of claim 1,
the determining a first reading power according to the first control instruction and receiving the first wired signal based on the first reading power to obtain a first receiving strength of the first wired signal includes:
and sequentially reading the first wired signal at the first reading power from high to low until the first receiving intensity is equal to a preset value.
3. The method of claim 1,
the method further comprises the following steps:
generating monitoring data according to the receiving parameters of the first wired signal and/or the second wired signal;
and sending the monitoring data to a server.
4. The method of claim 1,
the method further comprises the following steps:
generating a control instruction;
sending the control command to an indoor antenna integrated with a Bluetooth beacon and an RFID beacon through a wired transmission link, wherein the Bluetooth beacon is used for generating the Bluetooth signal; the RFID beacon is used to generate the RFID signal.
5. An intelligent gateway, comprising:
the link loss calculation module is used for generating a first control instruction of the first wired signal and generating a second control instruction of the second wired signal;
the radio frequency identification RFID reader-writer is used for determining first reading power according to the first control instruction and receiving the first wired signal based on the first reading power so as to obtain first receiving intensity of the first wired signal, wherein the first wired signal is generated based on a radio frequency identification RFID signal;
the Bluetooth chip is used for reading the second wired signal according to the second control instruction so as to obtain second receiving intensity of the second wired signal; wherein the second wired signal is generated based on a Bluetooth signal;
the link loss calculation module is further configured to determine a first link loss value of the first wired signal in a transmission link according to the first reception strength; determining a second link loss value of the second wired signal in the transmission link according to the second receiving strength, and calculating a third link loss value of a third wired signal in the transmission link according to the first link loss value and the second link loss value; wherein the third wired signal is generated based on a wireless signal, wherein a signal frequency of the wireless signal is between a signal frequency of the RFID signal and a signal frequency of the Bluetooth signal;
the link loss calculation module is specifically configured to calculate the first link loss value by using the following formula;
wherein, the LOSS1The number of times that the RFID reader reads the first wired signal is the first link loss value, and the N is the number of times that the first receiving strength is equal to a preset value; the Pn is the first reading power of the nth time; the RPn is the first reception strength of the nth time; said Q1Is the RFID signal;
the link loss calculation module is specifically configured to calculate the second link loss value by using the following formula;
LOSS2＝PO-PRSSI-Q2
wherein, the LOSS2For the second chain loss value, POIs the transmission power of the bluetooth signal; the P isRSSIThe second receiving strength; said Q2A transmission loss for the bluetooth signal to a receive antenna that generated the second wired signal;
the link loss calculation module is further configured to calculate, according to the first link loss value and the second link loss value, the third link loss value of the third wired signal to which the wireless signal is converted by using an interpolation algorithm in combination with the signal frequency of the bluetooth signal, the signal frequency of the RFID signal, and the signal frequency of the wireless signal.
6. The gateway according to claim 5,
the first control instruction is specifically configured to control the RFID reader to sequentially read the first wired signal from the high to low first read powers until the first reception intensity is equal to a preset value.
7. The gateway according to claim 5,
the intelligent gateway further comprises:
a first interface, connected to a room antenna system, for receiving the first wired signal and the second wired signal provided by the room antenna system, wherein the room antenna system includes: the indoor branch antenna is formed by an RFID beacon and a Bluetooth beacon; the RFID is to provide the RFID signal that generates the first wired signal; the bluetooth beacon is to provide the bluetooth signal that generated the second wired signal;
and the second interface is connected with the server and is used for sending the first wired signal and/or the second wired signal to the server or receiving information from the server.
8. The gateway according to claim 7,
the intelligent gateway is further used for generating monitoring data based on the receiving parameters of the first wired signal and the second wired signal;
the second interface is specifically configured to report the monitoring data to the server.
9. A computer storage medium having stored thereon computer-executable instructions capable, when executed by a processor, of carrying out the method of any one of claims 1 to 4.
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| US20150156647A1 (en) * | 2013-12-03 | 2015-06-04 | Motorola Mobility Llc | Methods and Devices for Path-Loss Estimation |
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