CN110716220A - High-precision positioning mobile terminal and high-precision positioning method - Google Patents
High-precision positioning mobile terminal and high-precision positioning method Download PDFInfo
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- CN110716220A CN110716220A CN201810760511.1A CN201810760511A CN110716220A CN 110716220 A CN110716220 A CN 110716220A CN 201810760511 A CN201810760511 A CN 201810760511A CN 110716220 A CN110716220 A CN 110716220A
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- 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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Abstract
The invention belongs to the technical field of mobile terminal positioning in the railway industry, and particularly relates to a high-precision positioning mobile terminal which comprises mobile electronic equipment and a high-precision positioning module, wherein the high-precision positioning module is in communication connection with the mobile electronic equipment through an external interface; the high-precision positioning module comprises a Beidou/GPS unit, a main control unit, a storage unit, a power management unit and an interface unit. The invention also provides a high-precision positioning method, firstly, establishing data communication with the differential server through the mobile electronic equipment, acquiring differential data and transmitting the differential data to the high-precision positioning module; then the high-precision positioning module carries out positioning operation on the Beidou/GPS satellite information and the differential data received in real time to obtain high-precision positioning information and transmits the high-precision positioning information to the mobile electronic equipment; and finally, the mobile electronic equipment obtains the high-precision positioning information of the mobile terminal. The invention realizes the high-precision positioning of the mobile electronic equipment.
Description
Technical Field
The invention belongs to the technical field of mobile terminal positioning in the railway industry, and particularly relates to a high-precision positioning mobile terminal and a high-precision positioning method.
Background
With the rapid development of communication technology, satellite positioning technology and the like, the automation and informatization levels of the railway industry are also rapidly promoted year by year; in the railway industry, the high-precision positioning of railway constructors is always in a blank state due to the early stage limitation of technologies, communication, resources and the like; researches show that the safety protection level of personnel can be greatly improved by accurately positioning the personnel and then assisting other informatization systems.
Disclosure of Invention
The invention aims to provide a high-precision positioning mobile terminal and a high-precision positioning method.A high-precision positioning module is connected with mobile electronic equipment, and the high-precision positioning module acquires high-precision position information of the mobile electronic equipment in real time according to differential data information and satellite positioning information of an external differential server and transmits the high-precision position information to the mobile electronic equipment; the mobile electronic equipment obtains high-precision positioning information and transmits the high-precision positioning information to an external server through a mobile public network; meanwhile, the high-precision positioning mobile terminal is communicated with an external server and other high-precision positioning mobile terminals through a mobile public network.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a high-precision positioning mobile terminal, which comprises mobile electronic equipment and a high-precision positioning module, wherein the high-precision positioning module is in communication connection with the mobile electronic equipment through an external interface; the high-precision positioning module is used for receiving and positioning operation of Beidou/GPS satellite signals and differential data and comprises a Beidou/GPS unit, a main control unit, a storage unit, a power management unit and an interface unit, wherein the main control unit is respectively connected with the Beidou/GPS unit, the storage unit and the interface unit, and the power management unit is respectively connected with the main control unit, the Beidou/GPS unit, the storage unit and the interface unit.
Furthermore, the Beidou/GPS unit is used for receiving Beidou/GPS satellite signals, differential data and positioning operation and transmitting a positioning operation result to the main control unit, and comprises an antenna, a Beidou/GPS receiving chip and a peripheral circuit, wherein the antenna is connected with the input end of the Beidou/GPS receiving chip;
the antenna is used for receiving Beidou/GPS satellite signals;
and the Beidou/GPS receiving chip and the peripheral circuit are used for converting and demodulating Beidou/GPS satellite signals received by the antenna, and transmitting high-precision positioning information to the main control unit after positioning operation.
Furthermore, the main control unit is used for processing data and transmitting the processed high-precision positioning information to the mobile electronic equipment through the interface unit, and comprises a main control processor and a peripheral circuit, wherein the peripheral circuit of the main control processor comprises a reset circuit and a clock circuit;
the reset circuit is used for the main control processor to perform nursing detection, power supply monitoring, automatic reset and manual reset;
the clock circuit is used for generating a fixed frequency clock signal and transmitting the fixed frequency clock signal to the master control processor.
Furthermore, the interface unit is used for converting the output signal interface protocol and mode of the main control unit and providing an external communication and power interface, and comprises a USB interface chip, a peripheral circuit, a Bluetooth wireless communication interface chip or/and a WIFI wireless communication interface chip;
the USB interface chip is used for receiving signal USB interface protocol conversion processing and signal transmission;
the peripheral circuit of the USB interface chip is used for filtering interference signals of a transmission channel of the USB interface and suppressing transient interference;
the Bluetooth wireless communication interface chip is used for short-distance wireless communication;
and the WIFI wireless communication interface chip is used for connecting the high-precision positioning module to a wireless local area network.
Further, when the power management unit adopts the USB SLAVE mode, the power management unit comprises a power management chip and a peripheral circuit, and the mobile electronic equipment provides power for the high-precision positioning module;
the power supply management chip is used for power supply conversion and voltage stabilization;
the peripheral circuit of the power management chip comprises a filter circuit, an amplitude limiting circuit and a power indication circuit, wherein the filter circuit is used for filtering an input power interference signal; the amplitude limiting circuit is used for protecting the power supply input voltage overrun value; the power supply indicating circuit is used for power supply input and output work and alarm indication.
Furthermore, when the power management unit adopts a USB HOST mode, the power management unit comprises a battery, a power management chip and a peripheral circuit, the battery is used for supplying power to the mobile electronic equipment through a USB interface, and the high-precision positioning module and the battery are integrally designed;
the power supply management chip is used for power supply conversion, voltage stabilization, battery voltage and output current detection, and when the battery voltage is lower than a set limit value, the power supply output is cut off;
the peripheral circuit of the power management chip comprises a filter circuit, an amplitude limiting circuit and a power indication circuit, wherein the filter circuit is used for filtering an input power interference signal; the amplitude limiting circuit is used for protecting the power supply input voltage overrun value; the power supply indicating circuit is used for power supply input and output work and alarm indication.
The invention also provides a high-precision positioning method, which comprises the following steps:
step 2, the high-precision positioning module carries out positioning operation on the Beidou/GPS satellite information and the differential data received in real time to obtain high-precision positioning information and transmits the high-precision positioning information to the mobile electronic equipment;
and 3, the mobile electronic equipment obtains the high-precision positioning information of the mobile terminal, and meanwhile, the high-precision positioning mobile terminal establishes communication connection with other high-precision positioning mobile terminals and the server and transmits data.
Further, the specific implementation process of step 1 is as follows: embedded software is arranged in the mobile electronic equipment, and connected differential server IP and verification information are configured;
102, when receiving handshake request information of the mobile electronic equipment, the differential server verifies the identity of the mobile electronic equipment, and establishes communication connection with the mobile electronic equipment after the identity of the mobile electronic equipment is verified;
and 103, the difference server sends difference data information to the mobile electronic equipment according to a set time period, and the mobile electronic equipment transmits the received difference data to the high-precision positioning module through the built-in communication interface.
Furthermore, the mobile electronic device is used for receiving the railway station yard signal state information forwarded by the server and the operation information of other connected mobile terminals; the embedded software of the mobile electronic equipment comprises a display module, a communication module, a data processing module, an alarm module, a voice module, a video module, a data management module, an inquiry module, an identity verification module and a simulation radio station communication module.
Further, the specific implementation process of step 2 is as follows:
step 201, on one hand, a high-precision positioning module receives Beidou/GPS satellite signals in real time through a built-in Beidou/GPS unit, and meanwhile, receives differential data information sent by mobile electronic equipment through a built-in interface unit, and forwards the differential data information to the Beidou/GPS unit after being processed by a main control unit;
and 202, the Beidou/GPS unit carries out positioning operation on the received Beidou/GPS satellite signals and the differential data and then transmits the high-precision positioning information to the main control unit, and the main control unit transmits the processed high-precision positioning information to the mobile electronic equipment through the interface unit.
Compared with the prior art, the invention has the following advantages:
1. the high-precision positioning mobile terminal adopts a phase difference positioning technology, a USB transmission technology and the like, a high-precision positioning module is additionally arranged on the mobile electronic equipment, the mobile electronic equipment receives data of an external difference server and transmits the data to the high-precision positioning module, the high-precision positioning module performs positioning operation on the received satellite positioning data and the difference data to obtain high-precision positioning information, and then the high-precision positioning information is transmitted to the mobile electronic equipment through an interface unit of the high-precision positioning module, so that the high-precision positioning of the mobile electronic equipment is realized.
2. The high-precision positioning module of the invention can be provided with no battery or a battery. When the battery is arranged, the high-precision positioning module is combined with the back splint battery, the charger and the like to be integrally designed and is connected with the interface of the mobile electronic equipment, so that not only can a required direct-current power supply be provided for the mobile electronic equipment through the data line, but also the high-precision positioning information calculated by the high-precision positioning module can be transmitted to the mobile electronic equipment through the data line. When the battery is not arranged, the mobile electronic equipment provides power for the high-precision positioning module through the data line. The high-precision positioning mobile terminal is ingenious in design, strong in practicability and convenient to carry, and the personal safety of railway construction personnel is greatly improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed in the prior art and the embodiments 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 to obtain other drawings without creative efforts.
Fig. 1 is a block diagram of a high-precision positioning mobile terminal according to a first embodiment of the present invention;
fig. 2 is a block diagram of a high-precision positioning module according to a first embodiment of the present invention;
fig. 3 is a schematic flow chart of a high-precision positioning method according to a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a high-precision positioning mobile terminal according to a second embodiment of the present invention;
fig. 5 is a schematic structural diagram of a high-precision positioning module according to a second embodiment of the present invention;
fig. 6 is a schematic structural diagram of a high-precision positioning mobile terminal according to a third embodiment of the present invention;
fig. 7 is a schematic structural diagram of a high-precision positioning module according to a third embodiment of the present invention;
fig. 8 is a schematic structural diagram of a high-precision positioning module according to a fourth embodiment of the present invention;
fig. 9 is a schematic structural diagram of a mobile electronic device according to a fourth embodiment of the present invention;
fig. 10 is a schematic structural diagram of a high-precision positioning module according to a fifth embodiment of the present invention.
The reference numbers in the figures denote: 101. the mobile electronic device comprises 102 high-precision positioning modules, 103 Beidou/GPS units, 104 main control units, 105 storage units, 106 power management units, 107 interface units, 108 differential servers, 109 batteries, 110 USB interfaces, 111 magnets, 112 metal materials and 113 adjustable back clamps.
Detailed Description
In a first embodiment, as shown in fig. 1, a high-precision positioning mobile terminal of this embodiment includes a mobile electronic device 101 and a high-precision positioning module 102, where the high-precision positioning module 102 is in communication connection with the mobile electronic device 101 through an external interface; as shown in fig. 2, the high-precision positioning module 102 is used for receiving and positioning Beidou/GPS satellite signals and differential data, and includes a Beidou/GPS unit 103, a main control unit 104, a storage unit 105, a power management unit 106 and an interface unit 107, wherein the main control unit 104 is respectively connected with the Beidou/GPS unit 103, the storage unit 105 and the interface unit 107, and the power management unit 106 is respectively connected with the main control unit 104, the Beidou/GPS unit 103, the storage unit 105 and the interface unit 107.
The big dipper/GPS unit 103 is used for receiving big dipper/GPS satellite signals, differential data and positioning operation sent by the differential server 108, and transmitting the positioning operation result to the main control unit 104, and comprises an antenna, a big dipper/GPS receiving chip and a peripheral circuit, wherein the antenna is connected with the input end of the big dipper/GPS receiving chip.
The antenna adopts a built-in antenna and is used for receiving Beidou/GPS satellite signals.
And the Beidou/GPS receiving chip and the peripheral circuit are used for converting and demodulating Beidou/GPS satellite signals received by the antenna, and transmitting high-precision positioning information to the main control unit after positioning operation.
The main control unit 104 is used for processing data transmission of the Beidou/GPS unit 103, processing data transmission of the interface unit 107, data storage management, processing data transmission of the power management unit 106, and transmitting the processed high-precision positioning information to the mobile electronic device 101 through the interface unit 107, and comprises a main control processor and a peripheral circuit, wherein the main control processor is connected with the peripheral circuit, and the peripheral circuit of the main control processor comprises a reset circuit and a clock circuit.
The reset circuit is used for the nursing detection of the main control processor, the power supply monitoring, the automatic reset and the manual reset.
The clock circuit is used for generating a fixed frequency clock signal and transmitting the fixed frequency clock signal to the master control processor.
The interface unit 107 is used for converting the interface protocol and mode of the output signal of the main control unit 104, and providing an external communication and power interface, and comprises a USB interface chip and a peripheral circuit, a bluetooth wireless communication interface chip or/and a WIFI wireless communication interface chip.
And the USB interface chip is used for receiving the signal USB interface protocol conversion processing and signal transmission.
The peripheral circuit of the USB interface chip is used for filtering interference signals of a transmission channel of the USB interface and suppressing transient interference.
The Bluetooth wireless communication interface chip is used for short-distance wireless communication.
And the WIFI wireless communication interface chip is used for connecting the high-precision positioning module to a wireless local area network.
The storage unit 105 is used for storing the transmission information processed by the main control unit 104.
The power management unit 106, when the USB HOST mode is adopted, includes a battery, a power management chip, and a peripheral circuit, where the battery is connected to the power management chip through the peripheral circuit, and the battery is used to supply power to the mobile electronic device through the USB interface 110. The battery and the high-precision positioning module are integrally designed.
The high-precision positioning module 102 and the mobile electronic device 101 can be in wired communication through a data line, and can also be in wireless communication through bluetooth or WIFI, and the high-precision positioning module 102 can provide a required direct-current power supply for the mobile electronic device 101 through the data line.
The power supply management chip is used for power supply conversion, voltage stabilization, battery voltage and output current detection, and when the battery voltage is lower than a set limit value, the power supply output is cut off.
The peripheral circuit of the power management chip comprises a filter circuit, an amplitude limiting circuit and a power indication circuit, wherein the filter circuit is used for filtering an input power interference signal; the amplitude limiting circuit is used for protecting the power supply input voltage overrun value; the power supply indicating circuit is used for power supply input and output work and alarm indication.
The mobile electronic device 101 is used for data communication, information processing and display, alarm, voice and video, data storage and query between external devices; the mobile electronic device 101 is one of a mobile phone, a tablet computer, a vehicle-mounted electronic device, and a mobile communication terminal.
As shown in fig. 3, the present embodiment further provides a high-precision positioning method, which includes the following steps:
step S301, establishing data communication with a differential server through the mobile electronic equipment, acquiring differential data and transmitting the differential data to a high-precision positioning module;
embedded software is arranged in the mobile electronic equipment, and connected differential server IP and verification information are configured; after the equipment is started, automatically initiating handshake request communication connection information to a configured differential server through a built-in mobile communication module via a public mobile communication network; the built-in mobile communication module is one of a GPRS communication module, a GSM-R communication module, a mobile 4G communication module and a multi-mode communication module.
The difference server acquires reference position information through an outdoor satellite receiving base station, and acquires position difference data through operation processing; the differential server is configured with IDs of the mobile electronic devices, when handshake request information of the mobile electronic devices is received, the identities of the mobile electronic devices are firstly verified, and after the identity of the mobile electronic devices passes the verification, the differential server establishes communication connection with the mobile electronic devices.
After the differential server establishes communication connection with the mobile electronic equipment, differential data information is sent to the mobile electronic equipment according to a set time period, and after the mobile electronic equipment receives the differential data information, the differential data information is forwarded to the high-precision positioning module through a built-in communication interface; and the differential server transmits differential data information, and broadcasts and sends the differential data information to the outside after encryption and encapsulation.
Step S302, the high-precision positioning module carries out positioning operation on the Beidou/GPS satellite information and the differential data received in real time to obtain high-precision positioning information and transmits the high-precision positioning information to the mobile electronic equipment;
on one hand, the high-precision positioning module receives satellite signals in real time through a built-in Beidou/GPS unit; meanwhile, differential data information forwarded by the mobile electronic equipment is received in real time through a built-in interface unit, processed by the main control unit and forwarded to the Beidou/GPS unit;
the Beidou/GPS unit carries out positioning operation on received Beidou/GPS satellite signals and differential data and then outputs high-precision positioning information, then the high-precision positioning information is transmitted to the main control unit, and the main control unit carries out comprehensive information processing and information packaging and packaging on the received high-precision positioning information and the module equipment state information and then transmits the information to the mobile electronic equipment through the interface unit.
Step S303, the mobile electronic device obtains the high-precision positioning information of the mobile terminal, and meanwhile, the high-precision positioning mobile terminal establishes communication connection with other high-precision positioning mobile terminals and the server and performs data transmission.
When receiving the transmission information of the high-precision positioning module, the mobile electronic equipment analyzes and calculates the received information to obtain the high-precision positioning information of the mobile terminal, then transmits the high-precision positioning information to the server through the public mobile communication network, and simultaneously, the mobile terminal can also communicate the obtained high-precision positioning information with other terminals in the network and transmit the accurate position of the equipment to the connected terminal equipment through the public mobile communication network.
The mobile electronic equipment is used for receiving the railway station signal state information forwarded by the server and the running information of other connected mobile terminals; the embedded software of the mobile electronic equipment comprises a display module, a communication module, a data processing module, an alarm module, a voice module, a video module, a data management module, an inquiry module, an identity verification module and a simulation radio station communication module.
And the display module is used for displaying ground signal state information, adjacent signal equipment information, approaching train information, map information, early warning information, video information and communication state information.
And the communication module is used for completing positioning communication, communicating with a differential server (mobile public network), communicating with a service server (mobile public network), receiving ground signal state information, adjacent signal equipment information, approaching train information, map information and early warning information, simultaneously transmitting high-precision position information, and communicating with the wearable equipment (through Bluetooth, transmitting alarm information, and enabling the wearable equipment to send voice or vibration prompts).
And the data processing module is used for receiving the information for comprehensive processing, transmitting the processed data to the communication module for information forwarding, and transmitting the processed data to the data management module for information storage management.
And the alarm module is used for prompting alarm information.
And the voice module is used for voice conversation between the mobile terminals and the command terminal.
And the video module is used for video conversation between the mobile terminals and the command terminal.
And the data management module is used for information storage management, automatically clearing early data of the stored data according to a set time range and releasing the memory space.
And the query module is used for historical information playback query.
And the identity authentication module is used for authenticating the identity of the authorized user.
The analog radio station communication module is used for radio station simulation and wireless communication between the mobile terminals in short distance (within 10 kilometers), at the moment, a mobile network is not needed, and expenses are saved.
In order to facilitate understanding of those skilled in the art, the following example embodiments two to five are described in detail.
Second embodiment, as shown in fig. 4 and 5, the present embodiment is different from the first embodiment in that the high-precision positioning module 102 is integrally designed with the battery 109 and combined with the mobile electronic device 101 in a back-clip manner, and the mobile electronic device 101 is embedded into the high-precision positioning module 102; the power management unit of the high-precision positioning module 102 adopts a USB BIOS mode, at this time, the high-precision positioning module 102 is connected with the mobile electronic device 101 through the built-in USB interface 110, the high-precision positioning module 102 transmits high-precision positioning information to the mobile electronic device 101 through the built-in USB interface 110, meanwhile, the high-precision positioning module 102 provides electric energy for the mobile electronic device 101, and the high-precision positioning module 102 and the mobile electronic device 101 can perform bidirectional data transmission. Other embodiments are similar to the first embodiment, and are not described herein again.
Third embodiment, as shown in fig. 6 and 7, the difference between the first embodiment and the second embodiment is that the high-precision positioning module 102 is combined with the mobile electronic device 101 in an independent charger form, the high-precision positioning module 102 is connected to the mobile electronic device 101 through an external USB interface 110 via a data line, the high-precision positioning module 102 transmits high-precision positioning information to the mobile electronic device 101 through the external USB interface 110 and the data line, and meanwhile, the high-precision positioning module 102 provides power for the mobile electronic device 101, and the high-precision positioning module 102 and the mobile electronic device 101 can perform bidirectional data transmission. Other embodiments are similar to the first embodiment, and are not described herein again.
Fourth embodiment, as shown in fig. 8 and 9, the difference between the first embodiment and the second embodiment is that the high-precision positioning module 102 is combined with the mobile electronic device 101 in a magnetic attraction manner, a magnet 111 is disposed on the front side of the high-precision positioning module 102, a metal material 112 capable of being attracted by the magnet 111 is disposed on the back side of the mobile electronic device 101, the high-precision positioning module 102 and the mobile electronic device 101 are fixed together in a magnetic attraction manner, and the high-precision positioning module 102 transmits high-precision positioning information to the mobile electronic device 101 through an external USB interface 110, a bluetooth wireless communication interface or a WIFI wireless communication interface; when the high-precision positioning module 102 employs the USB interface 110, the high-precision positioning module 102 can provide power to the mobile electronic device 101. Other embodiments are similar to the first embodiment, and are not described herein again.
Fifth embodiment, as shown in fig. 10, the difference between the first embodiment and the second embodiment is that the high-precision positioning module 102 is combined with the mobile electronic device 101 in a manner of using a clamping device, the clamping device uses an adjustable back clamp 113, and the high-precision positioning module 102 transmits the high-precision positioning information to the mobile electronic device 101 through an external USB interface 110, a bluetooth wireless communication interface, or a WIFI wireless communication interface; when the high-precision positioning module 102 employs a USB interface, the high-precision positioning module 102 can provide power to the mobile electronic device 101. Other embodiments are similar to the first embodiment, and are not described herein again.
Sixth embodiment, the difference between this embodiment and the first embodiment is that when the power management unit 106 adopts the USB SLAVE mode, the power management chip and the peripheral circuits are included, the high-precision positioning module 102 does not include the battery 109, and the mobile electronic device 101 supplies power to the high-precision positioning module 102 through the external interface.
The power supply management chip is used for power supply conversion and voltage stabilization; the peripheral circuit of the power management chip comprises a filter circuit, an amplitude limiting circuit and a power indication circuit, wherein the filter circuit is used for filtering an input power interference signal; the amplitude limiting circuit is used for protecting the power supply input voltage overrun value; the power supply indicating circuit is used for power supply input and output work and alarm indication. The high-precision positioning module 102 is connected with the mobile electronic device 101 through a data line, the mobile electronic device 101 provides power for the high-precision positioning module 102 through the data line, and the high-precision positioning module 102 performs bidirectional data transmission with the mobile electronic device 101 through a USB interface through the data line. Other embodiments are similar to the first embodiment, and are not described herein again.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A high-precision positioning mobile terminal is characterized by comprising mobile electronic equipment and a high-precision positioning module, wherein the high-precision positioning module is in communication connection with the mobile electronic equipment through an external interface; the high-precision positioning module is used for receiving and positioning operation of Beidou/GPS satellite signals and differential data and comprises a Beidou/GPS unit, a main control unit, a storage unit, a power management unit and an interface unit, wherein the main control unit is respectively connected with the Beidou/GPS unit, the storage unit and the interface unit, and the power management unit is respectively connected with the main control unit, the Beidou/GPS unit, the storage unit and the interface unit.
2. The high-precision positioning mobile terminal of claim 1, wherein the Beidou/GPS unit is used for receiving Beidou/GPS satellite signals, differential data and positioning operation and transmitting the positioning operation result to the main control unit, and comprises an antenna, a Beidou/GPS receiving chip and a peripheral circuit, wherein the antenna is connected with the input end of the Beidou/GPS receiving chip;
the antenna is used for receiving Beidou/GPS satellite signals;
and the Beidou/GPS receiving chip and the peripheral circuit are used for converting and demodulating Beidou/GPS satellite signals received by the antenna, and transmitting high-precision positioning information to the main control unit after positioning operation.
3. The mobile terminal of claim 1, wherein the main control unit is used for data processing and transmitting the processed high-precision positioning information to the mobile electronic device through the interface unit, and comprises a main control processor and a peripheral circuit, wherein the peripheral circuit of the main control processor comprises a reset circuit and a clock circuit;
the reset circuit is used for the main control processor to perform nursing detection, power supply monitoring, automatic reset and manual reset;
the clock circuit is used for generating a fixed frequency clock signal and transmitting the fixed frequency clock signal to the master control processor.
4. The mobile terminal of claim 1, wherein the interface unit is configured to convert the output signal interface protocol and mode of the main control unit, and provide an external communication and power interface, and comprises a USB interface chip and a peripheral circuit, a bluetooth wireless communication interface chip or/and a WIFI wireless communication interface chip;
the USB interface chip is used for receiving signal USB interface protocol conversion processing and signal transmission;
the peripheral circuit of the USB interface chip is used for filtering interference signals of a transmission channel of the USB interface and suppressing transient interference;
the Bluetooth wireless communication interface chip is used for short-distance wireless communication;
and the WIFI wireless communication interface chip is used for connecting the high-precision positioning module to a wireless local area network.
5. The mobile terminal of claim 4, wherein the power management unit, when in USB SLAVE mode, comprises a power management chip and peripheral circuits, and the mobile electronic device provides power to the high precision positioning module;
the power supply management chip is used for power supply conversion and voltage stabilization;
the peripheral circuit of the power management chip comprises a filter circuit, an amplitude limiting circuit and a power indication circuit, wherein the filter circuit is used for filtering an input power interference signal; the amplitude limiting circuit is used for protecting the power supply input voltage overrun value; the power supply indicating circuit is used for power supply input and output work and alarm indication.
6. The high-precision positioning mobile terminal according to claim 4, wherein the power management unit comprises a battery, a power management chip and a peripheral circuit when the USB HOST mode is adopted, the battery is used for supplying power to the mobile electronic device through the USB interface, and the high-precision positioning module and the battery are integrally designed;
the power supply management chip is used for power supply conversion, voltage stabilization, battery voltage and output current detection, and when the battery voltage is lower than a set limit value, the power supply output is cut off;
the peripheral circuit of the power management chip comprises a filter circuit, an amplitude limiting circuit and a power indication circuit, wherein the filter circuit is used for filtering an input power interference signal; the amplitude limiting circuit is used for protecting the power supply input voltage overrun value; the power supply indicating circuit is used for power supply input and output work and alarm indication.
7. A high accuracy positioning method implemented by using the high accuracy positioning mobile terminal of any one of claims 1 to 6, comprising the steps of:
step 1, establishing data communication with a differential server through mobile electronic equipment, acquiring differential data and transmitting the differential data to a high-precision positioning module;
step 2, the high-precision positioning module carries out positioning operation on the Beidou/GPS satellite information and the differential data received in real time to obtain high-precision positioning information and transmits the high-precision positioning information to the mobile electronic equipment;
and 3, the mobile electronic equipment obtains the high-precision positioning information of the mobile terminal, and meanwhile, the high-precision positioning mobile terminal establishes communication connection with other high-precision positioning mobile terminals and the server and transmits data.
8. The high-precision positioning method according to claim 7, wherein the specific implementation process of the step 1 is as follows: embedded software is arranged in the mobile electronic equipment, and connected differential server IP and verification information are configured;
step 101, after the equipment is started, automatically initiating handshake request communication connection information to a configured differential server through a public mobile communication network;
102, when receiving handshake request information of the mobile electronic equipment, the differential server verifies the identity of the mobile electronic equipment, and establishes communication connection with the mobile electronic equipment after the identity of the mobile electronic equipment is verified;
and 103, the difference server sends difference data information to the mobile electronic equipment according to a set time period, and the mobile electronic equipment transmits the received difference data to the high-precision positioning module through the built-in communication interface.
9. The high-precision positioning method according to claim 8, wherein the mobile electronic device is used for receiving railway yard signal state information forwarded by the server and other connected mobile terminal operation information; the embedded software of the mobile electronic equipment comprises a display module, a communication module, a data processing module, an alarm module, a voice module, a video module, a data management module, an inquiry module, an identity verification module and a simulation radio station communication module.
10. The high-precision positioning method according to claim 7, wherein the step 2 is realized by the following specific steps:
step 201, on one hand, a high-precision positioning module receives Beidou/GPS satellite signals in real time through a built-in Beidou/GPS unit, and meanwhile, receives differential data information sent by mobile electronic equipment through a built-in interface unit, and forwards the differential data information to the Beidou/GPS unit after being processed by a main control unit;
and 202, the Beidou/GPS unit carries out positioning operation on the received Beidou/GPS satellite signals and the differential data and then transmits the high-precision positioning information to the main control unit, and the main control unit transmits the processed high-precision positioning information to the mobile electronic equipment through the interface unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810760511.1A CN110716220A (en) | 2018-07-12 | 2018-07-12 | High-precision positioning mobile terminal and high-precision positioning method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111703474A (en) * | 2020-05-29 | 2020-09-25 | 广州南方卫星导航仪器有限公司 | Rail vehicle dispatching system and method based on high-precision GNSS navigation system |
| CN114302332A (en) * | 2021-12-27 | 2022-04-08 | 中国北方工业有限公司 | Positioning system and method based on narrow-band data broadcasting of Beidou third and all-terrain satellites |
| CN117031516A (en) * | 2023-07-28 | 2023-11-10 | 广州航海学院 | Fusion positioning monitoring system, method, computer equipment and storage medium |
| CN117320033A (en) * | 2023-08-14 | 2023-12-29 | 青岛港国际股份有限公司 | High-fidelity multimedia communication system based on 5G customized network high-precision positioning |
| CN117320033B (en) * | 2023-08-14 | 2024-05-31 | 青岛港国际股份有限公司 | High-fidelity multimedia communication system based on 5G customized network high-precision positioning |
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2018
- 2018-07-12 CN CN201810760511.1A patent/CN110716220A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111703474A (en) * | 2020-05-29 | 2020-09-25 | 广州南方卫星导航仪器有限公司 | Rail vehicle dispatching system and method based on high-precision GNSS navigation system |
| CN114302332A (en) * | 2021-12-27 | 2022-04-08 | 中国北方工业有限公司 | Positioning system and method based on narrow-band data broadcasting of Beidou third and all-terrain satellites |
| CN114302332B (en) * | 2021-12-27 | 2023-08-08 | 中国北方工业有限公司 | Positioning system and method based on Beidou No. three and space-time satellite narrowband data broadcasting |
| CN117031516A (en) * | 2023-07-28 | 2023-11-10 | 广州航海学院 | Fusion positioning monitoring system, method, computer equipment and storage medium |
| CN117320033A (en) * | 2023-08-14 | 2023-12-29 | 青岛港国际股份有限公司 | High-fidelity multimedia communication system based on 5G customized network high-precision positioning |
| CN117320033B (en) * | 2023-08-14 | 2024-05-31 | 青岛港国际股份有限公司 | High-fidelity multimedia communication system based on 5G customized network high-precision positioning |
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