CN106060774B - Communication terminal and positioning method - Google Patents
Communication terminal and positioning method Download PDFInfo
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- CN106060774B CN106060774B CN201610303989.2A CN201610303989A CN106060774B CN 106060774 B CN106060774 B CN 106060774B CN 201610303989 A CN201610303989 A CN 201610303989A CN 106060774 B CN106060774 B CN 106060774B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/025—Services making use of location information using location based information parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
- H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
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- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention discloses a communication terminal and a positioning method. The communication terminal includes: the satellite positioning module and the wireless network module are respectively connected with the control module, wherein the satellite positioning module is used for demodulating a satellite radio-frequency signal, acquiring first position information and sending the first position information to the control module; the wireless network module is used for acquiring the signal information of each received wireless network signal and sending the acquired signal information to the control module; and the control module is used for matching the received signal information with the signal information in a preset database, determining the position information corresponding to the matched signal information in the database as second position information, and determining the target position according to the first position information and the second position information. By applying the technical scheme provided by the embodiment of the invention, the positioning can be more accurate, effective position information can be provided for users, and the use by the users is convenient.
Description
Technical Field
The present invention relates to the field of terminal technologies, and in particular, to a communication terminal and a positioning method.
Background
Nowadays, the demand of users for the positioning function of communication terminals is gradually increasing, especially for private network communication terminals. The private network communication terminal is wireless communication equipment for realizing emergency communication, command scheduling and daily work communication between governments and departments of public safety, public utilities, industrial and commercial departments and the like. The user can accurately determine the current position in the process of using the private network communication terminal, and the method has great significance for commanding and scheduling and the like.
the existing terminal positioning mainly depends on satellite positioning, obtains longitude and latitude information by receiving and demodulating satellite signals, and determines the current position according to the longitude and latitude information. In a relatively open environment with less dense high-rise buildings, the satellite positioning method can be used for more accurate positioning, but in an indoor environment or a dense high-rise area, because satellite signals are not easily received, the satellite positioning method is difficult to accurately position, effective position information cannot be provided for users, and inconvenience is brought to the users.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides a communication terminal and a positioning method.
A communication terminal, comprising: a satellite positioning module, a wireless network module and a control module, wherein the satellite positioning module and the wireless network module are respectively connected with the control module,
The satellite positioning module is used for receiving a satellite radio frequency signal, demodulating the satellite radio frequency signal when the signal intensity of the satellite radio frequency signal is higher than a preset first threshold value, obtaining first position information, and sending the first position information to the control module;
The wireless network module is used for receiving at least one wireless network signal, acquiring signal information of each received wireless network signal and sending the acquired signal information to the control module;
The control module is used for receiving first position information sent by the satellite positioning module, receiving signal information sent by the wireless network module, matching the received signal information with signal information in a preset database, determining position information corresponding to the matched signal information in the database as second position information, and determining a target position according to the first position information and the second position information.
In one embodiment of the present invention, the method further comprises: a communication module connected with the control module,
The control module is specifically configured to send the received signal information to a first server through the communication module, so that the first server matches the received signal information with signal information in a preset database and returns a matching result, and according to the matching result, position information corresponding to the matched signal information in the database is determined as second position information.
In one embodiment of the present invention,
the control module is further configured to send the target location to a second server through the communication module, so that the second server outputs and displays the target location.
In one embodiment of the present invention, the method further comprises: and the display module is connected with the control module and used for receiving the display instruction of the control module and displaying the relevant information of the terminal state.
in one embodiment of the present invention, the method further comprises: the key module is connected with the control module and used for receiving and identifying key operation of a user and sending corresponding key information to the control module;
And the control module is also used for receiving the key information and controlling and modifying the relevant parameters of the terminal according to the key information.
in a specific embodiment of the present invention, the key module includes a key and a key management chip connected to the key, and the key management chip is configured to identify a key operation performed by the user through the key, collect key information, and send the collected key information to the control module.
in a specific embodiment of the present invention, the display module includes a touch screen, and the display module is further configured to receive a gesture operation performed by the user through the touch screen, and send the gesture operation to the control module;
The control module is further used for receiving the gesture operation and sending a command corresponding to the gesture operation according to the gesture operation.
A positioning method is applied to a control module in a communication terminal, wherein the control module is respectively connected with a satellite positioning module and a wireless network module in the communication terminal, and the method comprises the following steps:
Receiving first position information sent by the satellite positioning module, wherein the first position information is obtained after the satellite positioning module demodulates a received satellite radio-frequency signal, and the signal intensity of the satellite radio-frequency signal is higher than a preset first threshold value;
Receiving signal information sent by the wireless network module, wherein the signal information is the signal information of each wireless network signal received by the wireless network module;
matching the received signal information with signal information in a preset database;
Determining the position information corresponding to the matched signal information in the database as second position information;
and determining the target position according to the first position information and the second position information.
in a specific embodiment of the present invention, the communication terminal further includes a communication module connected to the control module, and the matching the received signal information with the signal information in the preset database includes:
Sending the received signal information to a first server through the communication module so that the first server matches the received signal information with signal information in a preset database and returns a matching result;
Correspondingly, the determining the location information corresponding to the matched signal information in the database as the second location information includes:
and determining the position information corresponding to the matched signal information in the database as second position information according to the matching result.
In a specific embodiment of the present invention, the method further comprises:
And sending the target position to a second server through the communication module so that the second server outputs and displays the target position.
By applying the technical scheme provided by the embodiment of the invention, the first position information can be obtained through the satellite positioning module, and the second position information can be determined according to the signal information of each wireless network signal received by the wireless network module, so that the target position can be determined according to the first position information and the second position information. Therefore, no matter in the relatively open environment with non-dense high-rise buildings or in the indoor environment or the dense area of the high-rise buildings, the positioning can be accurately carried out, effective position information can be provided for users, and the use of the users is facilitated.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a communication terminal according to an embodiment of the present invention;
Fig. 2 is a schematic structural diagram of a communication terminal according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a key module according to an embodiment of the present invention;
Fig. 4 is a flowchart of an implementation of the positioning method according to the embodiment of the present invention.
Detailed Description
The core of the invention is to provide a communication terminal and a positioning method. The communication terminal mainly comprises a satellite positioning module, a wireless network module and a control module. The satellite positioning module can obtain first position information according to the received satellite radio frequency signals and send the first position information to the control module. The wireless network module can receive wireless network signals, obtain signal information of each wireless network signal and send the obtained signal information to the control module. The control module can receive the first position information and the signal information of the wireless network signal, match the received signal information with the signal information in the preset database, and can determine the second position information. The control module can determine the current target position according to the first position information and the second position information. Therefore, no matter in the relatively open environment with non-dense high-rise buildings or in the indoor environment or the dense area of the high-rise buildings, the positioning can be accurately carried out, effective position information can be provided for users, and the use of the users is facilitated.
in order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the 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, which is a schematic structural diagram of a communication terminal according to an embodiment of the present invention, the communication terminal may include: the system comprises a satellite positioning module 110, a wireless network module 120 and a control module 130, wherein the satellite positioning module 110 and the wireless network module 120 are respectively connected with the control module 130.
the satellite positioning module 110 is configured to receive a satellite radio frequency signal, demodulate the satellite radio frequency signal when the signal intensity of the satellite radio frequency signal is higher than a preset first threshold, obtain first position information, and send the first position information to the control module 130;
A wireless network module 120, configured to receive at least one wireless network signal, obtain signal information of each received wireless network signal, and send the obtained signal information to the control module 130;
The control module 130 is configured to receive the first location information sent by the satellite positioning module 110, receive the signal information sent by the wireless network module 120, match the received signal information with signal information in a preset database, determine location information corresponding to the matched signal information in the database as second location information, and determine a target location according to the first location information and the second location information.
in the embodiment of the present invention, the satellite positioning module 110, the wireless network module 120, and the control module 130 may be integrated into a communication terminal, and of course, the communication terminal may further include a baseband module and a radio frequency module for transceiving communication signals. In addition, the communication module may further include a power module, and power may be supplied to each module of the communication terminal that needs to be powered through the control module 130.
The Satellite positioning module 110 may be a GNSS (Global Navigation Satellite System) positioning module. In practical applications, the antenna of the communication terminal may receive a satellite radio frequency signal, such as a GNSS radio frequency signal, and then transmit the satellite radio frequency signal to the satellite positioning module 110. After receiving the satellite radio frequency signal, the satellite positioning module 110 may determine the signal strength of the satellite radio frequency signal, and if the signal strength of the satellite radio frequency signal is higher than a preset first threshold, may demodulate the satellite radio frequency signal to obtain the first position information. The first location information may include latitude and longitude information and altitude information. In an embodiment of the present invention, the signal strength of the satellite radio frequency signal may be represented by the number of satellites available for positioning. When the signal strength of the satellite rf signal is not higher than the predetermined first threshold, the satellite positioning module 110 may not be able to correctly demodulate the satellite rf signal, and may not obtain the first position information.
After the satellite positioning module 110 obtains the first location information, the first location information may be sent to the control module 130.
it can be understood that, in a relatively open environment with less dense high-rise buildings, the signal strength of the satellite radio frequency signal received by the satellite positioning module 110 is strong, and the satellite positioning module 110 can obtain the first position information. However, in an indoor environment or a dense area of a high building, when the signal strength of the satellite radio frequency signal is not sufficient for the satellite positioning module 110 to determine the first position information, or the determined first position information is not accurate enough, further positioning can be performed through the wireless network signal.
In an indoor environment, a plurality of wireless network Access Points (APs) (access points) may exist in an area, and each AP transmits a wireless network signal to the outside. In an area covered by Wireless network signals, the Wireless network module 120, such as a WiFi (Wireless-Fidelity) module, may receive one or more Wireless network signals.
After receiving at least one wireless network signal, the wireless network module 120 may obtain signal information of each received wireless network signal, and send the obtained signal information to the control module 130. The signal information of each wireless network at least comprises identification information of the wireless network signal and can also comprise strength information of the wireless network signal.
in an indoor environment, due to the influence of propagation distance, obstacle distribution, and other factors, wireless network signals that can be received by the wireless network module 120 in different areas may be different, that is, identification information of the wireless network signals is different. Wireless network signals which can be received by the communication terminal at various typical positions can be collected in advance, and a database is established according to the identification information of the collected wireless network signals. The database may store identification information for wireless network signals corresponding to each representative location.
when receiving the identification information sent by the wireless network module 120, the control module 130 may match the received identification information with the identification information in the database, and determine the location information corresponding to the matched identification information in the database as the second location information.
For example, the pre-established database is:
A first position: corresponding to AP1, AP 2;
And position two: corresponding to AP1, AP3, AP 4;
And (4) position three: corresponding to AP2, AP 4.
The identification information sent by the wireless network module 120 and received by the control module 130 is: AP2, AP 4. The two identification information are matched with the identification information in the database of the previous example, and may be matched to position three, and the control module 130 may determine position three as the second position information.
In addition, because the wireless network module 120 receives the same wireless network signal in different areas with different intensities, the identification information of the wireless network signal and the intensity information of each wireless network signal that can be received by the communication terminal at each typical position can be collected in advance, and a database is established according to the collected identification information and intensity information of the wireless network signal. The database may store identification information and strength information of wireless network signals corresponding to each representative location.
The Strength of the wireless network Signal can be represented by RSSI (Received Signal Strength Indication). The distribution of RSSI may exhibit strong location specificity, that is, the received signal strength vectors of multiple APs in each area have uniqueness, from which indoor positioning can be achieved.
Specifically, the strength information may include an RSSI mean, an RSSI error, and the like, and the identification information may be a MAC address of the AP.
For example, the information recorded in the database is as follows:
A first position: AP1 with intensity (R1, R2), AP2 with intensity (R3, R4);
and position two: AP1 with intensity (R5, R6), AP2 with intensity (R7, R8);
and (4) position three: corresponding to AP1 with intensity (R9, R10), AP3 with intensity (R11, R12), AP4 with intensity (R13, R14).
The preset database can be established according to field test results, or can be established according to signal information and position information which are collected in advance and reported by multiple communication terminals. The embodiments of the present invention are not limited in this regard.
After receiving the identification information and the strength information of each wireless network signal sent by the wireless network module 120, the control module 130 may match the received identification information and strength information with the identification information and the strength information in a preset database, and determine the location information corresponding to the matched identification information and strength information in the database as the second location information.
for example, the identification information and the strength information sent by the wireless network module 120 and received by the control module 130 are respectively: AP1 with intensity x, AP2 with intensity y. The identification information and the intensity information are matched with the identification information and the intensity information in the database of the previous example, and assuming that x is between (R1, R2) and y is between (R3, R4), a location one may be matched, and the location one may be determined as the second location information.
the position information obtained by information matching according to the identification information and the strength information of the wireless network signal is more accurate.
In practical application, the satellite positioning module 110 can accurately position in a relatively open place where high-rise buildings are not dense; in an indoor environment, due to the influence of obstructions such as walls, the positioning accuracy of the satellite positioning module 110 is greatly reduced, and sometimes even the satellite radio frequency signal cannot be received, so that the first position information cannot be determined. In an indoor environment, the control module 130 may determine the second location information through signal information of each wireless network signal received by the wireless network module 120.
Therefore, in an outdoor environment without wireless network signals, the control module 130 may determine the current target location according to the first location information. In an indoor environment, if the satellite positioning module 110 is unable to determine the first location information, the target location may be determined from the second location information; if the satellite positioning module 110 can determine the first location information, the current target location can be determined according to the first location information and the second location information, such as determining the target location to be XX street XX mansion X floor. Realize indoor outer location.
By applying the communication terminal provided by the embodiment of the present invention, the satellite positioning module 110 can obtain the first location information, and the second location information can be determined according to the signal information of each wireless network signal received by the wireless network module 120, so that the target location can be determined according to the first location information and the second location information. Therefore, no matter in the relatively open environment with non-dense high-rise buildings or in the indoor environment or the dense area of the high-rise buildings, the positioning can be accurately carried out, effective position information can be provided for users, and the use of the users is facilitated.
Referring to fig. 2, in an embodiment of the present invention, the communication terminal may further include: a communication module 140 coupled to the control module 130.
The control module 130 is specifically configured to send the received signal information to the first server through the communication module 140, so that the first server matches the received signal information with signal information in a preset database and returns a matching result, and according to the matching result, position information corresponding to the matched signal information in the database is determined as second position information.
the pre-established database may be stored in the first server. After receiving the signal information sent by the wireless network module 120, the control module 130 may send the signal information to the first server, where the first server performs information matching, that is, matches the signal information with the signal information in the database stored in the first server, and returns a matching result to the control module 130. The control module 130 may determine the location information corresponding to the matched signal information as the second location information according to the matching result. Thus, the memory space of the device can be saved.
Certainly, a pre-established database may also be stored in the memory of the communication terminal, and when the control module 130 receives the signal information of each wireless network signal sent by the wireless network module 120, the signal information may be matched with the signal information in the database, and the position information corresponding to the matched signal information in the database may be determined as the second position information. In this way, network traffic may be saved.
in an embodiment of the present invention, the control module may be further configured to send the target location to the second server through the communication module, so that the second server outputs the exhibition target location.
the communication terminal can be connected with the second server through the communication module. The control module, after determining the target location, may send the target location to the second server. After receiving the target position, the second server may output the target position showing the communication terminal, for example, output the target position showing the communication terminal in an electronic map. If the communication terminal is a private network communication terminal, the position of the private network communication terminal can be conveniently monitored by personnel in a command and dispatch center in real time, and command and dispatch are facilitated.
it should be noted that the first server and the second server may be the same server or different servers.
referring to fig. 2, on the basis of the foregoing embodiments, the communication terminal provided in the embodiment of the present invention may further include: and the display module 150 connected to the control module 130 is configured to receive a display instruction from the control module 130 and display information related to the terminal state.
the control module 130 may obtain information related to the terminal state from each module of the communication terminal, such as remaining battery capacity, memory usage, target location, terminal parameters, and the like. The control module 130 may send a display instruction to the display module 150. After receiving the display instruction from the control module 130, the display module 150 may display the information related to the terminal state, specifically, the information may be displayed in a form of text or picture. The user can view the state of the communication terminal in real time through the display module 150.
on the basis of the foregoing embodiments, the communication terminal provided in the embodiments of the present invention may further include: the key module is connected with the control module and used for receiving and identifying key operation of a user and sending corresponding key information to the control module;
And the control module is also used for receiving the key information and controlling and modifying the relevant parameters of the terminal according to the key information.
In the embodiment of the present invention, the Display module may Display the terminal related parameters through an LCD (Liquid Crystal Display). The user can modify the relevant parameters of the terminal through the keys of the key module, and the man-machine interaction of the communication terminal is enhanced.
Specifically, the key module may include a key and a key management chip connected to the key, where the key management chip is configured to identify a key operation performed by a user through the key, collect key information, and send the collected key information to the control module. When a key is pressed down, the key management chip can automatically acquire key information and transmit the key information to the control module. The key management chip can realize two functions of key anti-shake, IO port reduction and the like.
Referring to fig. 3, the key management chip has corresponding IO ports in rows and columns, and is connected to the 4 × 5 matrix keyboard in rows and columns. The key may include: 0-9 ten number keys, up, down, left and right direction keys, return, delete, cancel, confirm and other function keys. When a key is pressed down, the key management chip automatically acquires a key value and applies interruption to the control module, the control module communicates with the key management chip to obtain the specific key pressed down, and corresponding terminal related parameters are modified according to key information.
On the basis of the foregoing embodiments, the display module in the communication terminal provided in the embodiments of the present invention may include a touch screen, and the display module is further configured to receive a gesture operation performed by a user through the touch screen, and send the gesture operation to the control module;
The control module is also used for receiving the gesture operation and sending a command corresponding to the gesture operation according to the gesture operation.
The user can execute corresponding gesture operation through the touch screen, and the control module can send out corresponding commands according to the gesture operation of the user. For example, moving the content displayed on the screen, calling the virtual keyboard, modifying the relevant parameters of the terminal, etc.
the communication terminal provided by the embodiment of the invention can realize the functions of checking and modifying the relevant parameters of the terminal, reliably positioning in real time, improving the man-machine interaction process and improving the user experience. These functions are more practical, especially for private network communication terminals.
Corresponding to the above embodiment of the communication terminal, the embodiment of the present invention further provides a positioning method, which can be applied to a control module in the communication terminal, where the control module is respectively connected to a satellite positioning module and a wireless network module in the communication terminal.
In the following, a positioning method provided by an embodiment of the present invention is introduced, and a positioning method described below and a communication terminal described above may be referred to correspondingly.
referring to fig. 4, there is shown a flowchart for implementing a positioning method according to an embodiment of the present invention, where the method includes the following steps:
S410: and receiving first position information sent by the satellite positioning module.
The first position information is obtained after the satellite positioning module demodulates the received satellite radio-frequency signals, and the signal intensity of the satellite radio-frequency signals is higher than a preset first threshold value.
The Satellite positioning module may be specifically a GNSS (Global Navigation Satellite System) positioning module. In practical applications, the antenna of the communication terminal may receive a satellite radio frequency signal, such as a GNSS radio frequency signal, and then transmit the satellite radio frequency signal to the satellite positioning module. After receiving the satellite radio-frequency signal, the satellite positioning module can judge the signal intensity of the satellite radio-frequency signal, and if the signal intensity of the satellite radio-frequency signal is higher than a preset first threshold value, the satellite radio-frequency signal can be demodulated to obtain first position information. The first location information may include latitude and longitude information and altitude information. In an embodiment of the present invention, the signal strength of the satellite radio frequency signal may be represented by the number of satellites available for positioning. When the signal strength of the satellite radio frequency signal is not higher than the preset first threshold, the satellite positioning module may not be able to correctly demodulate the satellite radio frequency signal, and may not obtain the first position information.
After the satellite positioning module obtains the first position information, the first position information may be sent to the control module. The control module receives the first location information.
S420: and receiving signal information sent by the wireless network module.
The signal information is the signal information of each wireless network signal received by the wireless network module.
It can be understood that, in a relatively open environment with no dense high-rise buildings, the satellite positioning module receives a satellite radio frequency signal with a strong signal strength, and can obtain the first position information. However, in an indoor environment or a dense area of a high building, when the signal strength of the satellite radio frequency signal is not enough for the satellite positioning module to determine the first position information, or the determined first position information is not accurate enough, further positioning can be performed through the wireless network signal.
in an indoor environment, a plurality of wireless network Access Points (APs) (access points) may exist in an area, and each AP transmits a wireless network signal to the outside. In an area covered by Wireless network signals, a Wireless network module, such as a WiFi (Wireless-Fidelity) module, may receive one or more Wireless network signals.
after receiving the wireless network signals, the wireless network module can obtain the signal information of each received wireless network signal and send the obtained signal information to the control module. The signal information of each wireless network at least comprises identification information of the wireless network signal and can also comprise strength information of the wireless network signal.
it should be noted that, in the embodiment of the present invention, there is no limitation on the execution order of step S410 and step S420.
S430: and matching the received signal information with the signal information in a preset database.
s440: and determining the position information corresponding to the matched signal information in the database as second position information.
for convenience of description, the above two steps are combined for illustration.
In an indoor environment, due to the influence of factors such as propagation distance and obstacle distribution, wireless network signals that can be received by the wireless network module in different areas may be different, that is, identification information of the wireless network signals is different. Wireless network signals which can be received by the communication terminal at various typical positions can be collected in advance, and a database is established according to the identification information of the collected wireless network signals. The database may store identification information for wireless network signals corresponding to each representative location.
When the control module receives the identification information sent by the wireless network module, the control module can match the received identification information with the identification information in the database, and determine the position information corresponding to the matched identification information in the database as the second position information.
In addition, because the wireless network modules receive the same wireless network signal with different intensities in different areas, the identification information of the wireless network signal and the intensity information of each wireless network signal which can be received by the communication terminal at each typical position can be collected in advance, and a database is established according to the collected identification information and intensity information of the wireless network signal. The database may store identification information and strength information of wireless network signals corresponding to each representative location.
the Strength of the wireless network Signal can be represented by RSSI (Received Signal Strength Indication). The distribution of RSSI may exhibit strong location specificity, that is, the received signal strength vectors of multiple APs in each area have uniqueness, from which indoor positioning can be achieved.
Specifically, the strength information may include an RSSI mean, an RSSI error, and the like, and the identification information may be a MAC address of the AP.
After the control module receives the identification information and the strength information of each wireless network signal sent by the wireless network module, the control module can match the received identification information and the strength information with the identification information and the strength information in a preset database, and determine the position information corresponding to the matched identification information and the strength information in the database as second position information.
S450: and determining the target position according to the first position information and the second position information.
In practical application, the satellite positioning module can accurately position in a relatively open place where high-rise buildings are not dense; in an indoor environment, due to the influence of shelters such as a wall body and the like, the positioning accuracy of the satellite positioning module is greatly reduced, sometimes even the satellite radio frequency signal can not be received, and the first position information can not be determined. In the indoor environment, the control module can determine the second position information through the signal information of each wireless network signal received by the wireless network module.
Therefore, in the outdoor environment, in the absence of wireless network signals, the control module can determine the current target position according to the first position information. In an indoor environment, if the satellite positioning module cannot determine the first position information, the target position can be determined according to the second position information; if the satellite positioning module can determine the first position information, the current target position can be determined according to the first position information and the second position information, for example, the target position is determined to be XX street XX mansion X layer. Realize indoor outer location.
By applying the method provided by the embodiment of the invention, the first position information can be obtained through the satellite positioning module, and the second position information can be determined according to the signal information of each wireless network signal received by the wireless network module, so that the target position can be determined according to the first position information and the second position information. Therefore, no matter in the relatively open environment with non-dense high-rise buildings or in the indoor environment or the dense area of the high-rise buildings, the positioning can be accurately carried out, effective position information can be provided for users, and the use of the users is facilitated.
In an embodiment of the present invention, the communication terminal may further include a communication module connected to the control module, and step S430 may include the steps of:
sending the received signal information to a first server through a communication module so that the first server matches the received signal information with signal information in a preset database and returns a matching result;
Accordingly, step S440 may include the steps of:
And determining the position information corresponding to the matched signal information in the database as second position information according to the matching result.
The pre-established database may be stored in the first server. After receiving the signal information sent by the wireless network module, the control module can send the signal information to the first server, and the first server performs information matching, that is, the signal information is matched with the signal information in the database stored in the control module, and a matching result is returned to the control module. The control module may determine the location information corresponding to the matched signal information as the second location information according to the matching result. Thus, the memory space of the device can be saved.
Certainly, a pre-established database may also be stored in the memory of the communication terminal, and when the control module receives the signal information of each wireless network signal sent by the wireless network module, the signal information may be matched with the signal information in the database, and the location information corresponding to the matched signal information in the database may be determined as the second location information. In this way, network traffic may be saved.
In one embodiment of the invention, the method may further comprise the steps of:
And sending the target position to a second server through a communication module so that the second server outputs a display target position.
The communication terminal can be connected with the second server through the communication module. The control module, after determining the target location, may send the target location to the second server. After receiving the target position, the second server may output the target position showing the communication terminal, for example, output the target position showing the communication terminal in an electronic map. If the communication terminal is a private network communication terminal, the position of the private network communication terminal can be conveniently monitored by personnel in a command and dispatch center in real time, and command and dispatch are facilitated.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other.
those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
the communication terminal and the positioning method provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (8)
1. a communication terminal, comprising: a satellite positioning module, a wireless network module and a control module, wherein the satellite positioning module and the wireless network module are respectively connected with the control module,
the satellite positioning module is used for receiving a satellite radio frequency signal, demodulating the satellite radio frequency signal when the signal intensity of the satellite radio frequency signal is higher than a preset first threshold value, obtaining first position information, and sending the first position information to the control module;
The wireless network module is used for receiving at least one wireless network signal, acquiring signal information of each received wireless network signal and sending the acquired signal information to the control module;
The control module is used for receiving first position information sent by the satellite positioning module, receiving signal information sent by the wireless network module, matching the received signal information with signal information in a preset database, determining position information corresponding to the matched signal information in the database as second position information, and determining a target position according to the first position information and the second position information; the signal information of each wireless network signal comprises identification information and strength information of the wireless network signal, the identification information and the strength information of the wireless network signal corresponding to each typical position are stored in the database, and the control module matches the received identification information and strength information with the identification information and the strength information which are stored in the database in the memory of the communication terminal in advance.
2. the communication terminal of claim 1, further comprising: a communication module connected with the control module,
The control module is further configured to send the target location to a second server through the communication module, so that the second server outputs and displays the target location.
3. the communication terminal according to any of claims 1 to 2, further comprising: and the display module is connected with the control module and used for receiving the display instruction of the control module and displaying the relevant information of the terminal state.
4. the communication terminal of claim 3, further comprising: the key module is connected with the control module and used for receiving and identifying key operation of a user and sending corresponding key information to the control module;
And the control module is also used for receiving the key information and controlling and modifying the relevant parameters of the terminal according to the key information.
5. The communication terminal according to claim 4, wherein the key module comprises a key and a key management chip connected to the key, and the key management chip is configured to identify a key operation performed by the user through the key, collect key information, and send the collected key information to the control module.
6. The communication terminal according to claim 3, wherein the display module comprises a touch screen, and the display module is further configured to receive a gesture operation performed by a user through the touch screen and send the gesture operation to the control module;
the control module is further used for receiving the gesture operation and sending a command corresponding to the gesture operation according to the gesture operation.
7. A positioning method is applied to a control module in a communication terminal, wherein the control module is respectively connected with a satellite positioning module and a wireless network module in the communication terminal, and the method comprises the following steps:
Receiving first position information sent by the satellite positioning module, wherein the first position information is obtained after the satellite positioning module demodulates a received satellite radio-frequency signal, and the signal intensity of the satellite radio-frequency signal is higher than a preset first threshold value;
Receiving signal information sent by the wireless network module, wherein the signal information is the signal information of each wireless network signal received by the wireless network module;
Matching the received signal information with signal information in a preset database;
Determining the position information corresponding to the matched signal information in the database as second position information;
Determining a target position according to the first position information and the second position information;
the signal information of each wireless network signal comprises identification information and strength information of the wireless network signal, the identification information and the strength information of the wireless network signal corresponding to each typical position are stored in the database, and the control module matches the received identification information and strength information with the identification information and the strength information which are stored in the database in the memory of the communication terminal in advance.
8. The method of claim 7, wherein the communication terminal further comprises a communication module connected to the control module, the method further comprising:
And sending the target position to a second server through the communication module so that the second server outputs and displays the target position.
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| CN107835490A (en) * | 2017-10-10 | 2018-03-23 | 深圳数位传媒科技有限公司 | Floor position localization method, system, server and computer-readable recording medium |
| CN109932686B (en) * | 2019-03-29 | 2022-01-04 | 维沃移动通信有限公司 | Positioning method, mobile terminal and indoor positioning system |
| CN110688441B (en) * | 2019-09-30 | 2022-07-22 | 北京金山安全软件有限公司 | Positioning method, positioning device, electronic equipment and computer readable storage medium |
| CN111132010B (en) * | 2019-12-25 | 2021-04-13 | Oppo广东移动通信有限公司 | Equipment positioning method and device, storage medium and electronic equipment |
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