CN215678786U - GPS receiver calibration medium-long baseline measurement system based on remote wireless communication - Google Patents
GPS receiver calibration medium-long baseline measurement system based on remote wireless communication Download PDFInfo
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- CN215678786U CN215678786U CN202121808528.3U CN202121808528U CN215678786U CN 215678786 U CN215678786 U CN 215678786U CN 202121808528 U CN202121808528 U CN 202121808528U CN 215678786 U CN215678786 U CN 215678786U
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Abstract
The utility model provides a GPS receiver calibration medium-long baseline measurement system based on remote wireless communication, which is provided with a GPS controlled terminal and a switch controller, wherein the GPS receiver to be detected is connected with the switch controller through a power line, the GPS controlled terminal is connected with the switch controller through the power line, the GPS controlled terminal is connected with the GPS receiver to be detected through a data line, the GPS receiver to be detected and the GPS controlled terminal are opened and closed through holding an APP control switch controller, the GPS controlled terminal receives and uploads coordinate information of a detection point detected by the GPS receiver to a server, and a detector can download and process the coordinate information through accessing the server to realize remote control of the GPS receiver during calibration, thereby reducing the labor intensity of operators during calibration of the GPS receiver, saving labor force, reducing calibration cost and improving calibration efficiency.
Description
The technical field is as follows:
the utility model belongs to the technical field of measurement and calibration of Global Positioning System (GPS) receivers, and particularly relates to a GPS receiver calibration medium-long baseline measurement system based on remote wireless communication.
Background art:
with the development of science and technology, the application of the Global Positioning System (GPS) is becoming more and more widespread. Especially in engineering applications. Therefore, the GPS calibration work is important for controlling the engineering quality.
Currently, the main basis for GPS calibration is JJF1118-2004 Global Positioning System (GPS) receiver (geodetic and navigational) calibration Specifications. Among the GPS calibration items specified in the calibration specifications, the most important item is measurement error, which is further divided into short baseline measurement and medium-long baseline measurement (short baseline: 24m-2km, medium-long baseline: 2km-30 km). When the measurement error of the detected GPS is calibrated, the calibration is usually carried out in a calibration field of a GPS receiver, one GPS receiver is respectively placed on detection points at two ends of a base line, the antenna of the GPS receiver is required to be accurately leveled and centered, the centering error is less than 0.5 mm, the antenna points to the north, the height of the antenna is accurately measured, synchronous observation is carried out according to a static operation mode, the two GPS receivers respectively detect coordinates of the detection points where the two GPS receivers are located, the distance between the detection points at the two ends of the base line is a standard value, a measurement value of the distance between the two detection points can be calculated according to the coordinates detected by the two GPS receivers, the difference value between the measurement value and the standard value is a measurement error value, and the average value of the measurement error values obtained by multiple times of measurement is the measurement error.
In order to ensure the accuracy of measurement, during measurement, two GPS receivers at detection points at two ends of a base line need to be simultaneously turned on and off, the current common practice is that two detection personnel are mutually matched for operation, in addition, measurement errors need to be measured for many times, the detected GPS receivers need to be placed at the detection points for a long time and keep a power-on state, the electric quantity of the detected GPS receivers often cannot support the whole detection process, batteries need to be replaced, the detection personnel need to repeatedly go back and forth to the detection points, in addition, measurement data need to be derived from the detected GPS receivers after the measurement is finished, the short base line measurement problem is not great, however, when the length of the base line is more than 500m, the detection personnel repeatedly go back and forth to the detection points, the labor intensity is high, the detection cost is high, the efficiency is low, and the working efficiency and the accuracy of a calibration result are seriously affected.
The utility model has the following contents:
in summary, in order to overcome the disadvantages of the prior art, the utility model provides a long and medium baseline measurement system for calibrating a GPS receiver based on remote wireless communication, which is provided with a GPS controlled terminal and a switch controller, wherein the GPS controlled terminal is connected with the switch controller through a power line, the GPS controlled terminal is connected with the GPS receiver through a data line, the opening and closing of the GPS receiver and the GPS controlled terminal are realized by controlling the switch controller through a handheld APP, the GPS controlled terminal receives and uploads coordinate information of a detection point detected by the GPS receiver to a server, and a detector can download and process the coordinate information through accessing the server, so as to realize remote control of the calibration of the GPS receiver, thereby reducing the labor intensity of the operator during the calibration of the GPS receiver, saving labor force, reducing calibration cost, and the like, The calibration efficiency is improved.
In order to solve the technical problem, the technical scheme of the utility model is realized as follows:
a long-medium baseline measurement system for calibration of a GPS receiver based on long-range wireless communication, wherein: the system comprises a handheld APP, a switch controller, a GPS controlled terminal, a power supply and a data display analysis device, wherein the handheld APP is in wireless connection with the switch controller through a mobile communication protocol, the switch controller is connected with the power supply through a power line, the switch controller is respectively connected with the GPS controlled terminal and a detected GPS receiver through power lines, the GPS controlled terminal is connected with the detected GPS receiver through a data line, the GPS controlled terminal is in wireless connection with a server through a mobile communication protocol, the data display analysis device accesses the server through an Ethernet, the handheld APP sends a startup and shutdown signal to the switch controller, the switch controller controls the startup and shutdown of the detected GPS receiver and the GPS controlled terminal, so that the startup and shutdown of the detected GPS receiver and the GPS controlled terminal are realized, the detected GPS receiver detects the coordinates of a detection point where the detected GPS receiver is located, and transmits coordinate data to the GPS controlled terminal, the GPS controlled terminal uploads the received coordinate information to the server, and the data display analysis device downloads the coordinate information through the access server and performs data processing.
Further, the handheld APP is wirelessly connected with the switch controller through a GSM communication protocol or a GPRS communication protocol.
Furthermore, the GPS controlled terminal is wirelessly connected with the server through a GSM communication protocol or a GPRS communication protocol.
Further, the GPS controlled terminal comprises a shell and a main control panel arranged in the shell, wherein the main control panel is provided with a main control unit, a power supply management module, a storage module, a light indication module, a clock module, a transceiver module, a mobile communication module and a USB module, the power supply management module is electrically connected with a switch controller through a power line and provides power for the main control unit, the storage module, the light indication module, the clock module, the transceiver module, the mobile communication module and the USB module, the storage module is electrically connected with the main control unit and an SD card socket arranged on the shell and stores coordinate information received by the transceiver module, the light indication module is electrically connected with an indication lamp arranged on the shell, the clock module is electrically connected with the main control unit, and the transceiver module is electrically connected with the main control unit and a transceiver interface arranged on the shell, the transceiver interface is connected with the detected GPS receiver through a data line, the transceiver module is used for receiving the coordinate information detected by the detected GPS receiver, the mobile communication module is electrically connected with the main control unit, the mobile communication antenna and the SIM card interface which are arranged on the shell, and the USB module is electrically connected with the main control unit and the USB interface which is arranged on the shell.
Further, the transceiver module comprises an RS232 transceiver module and an RS485 transceiver module.
Furthermore, the main control panel is provided with a LAN module which is electrically connected with the main control unit and the LAN port arranged on the shell.
Further, the switch controller is a remote IO module.
Furthermore, the data display and analysis device is a PC computer.
Furthermore, the power supply is a solar power generation system and comprises a solar power generation panel and a solar energy storage and control all-in-one machine, the solar power generation panel is electrically connected with the solar energy storage and control all-in-one machine, and the solar energy storage and control all-in-one machine is connected with the switch controller through a power line.
The utility model has the beneficial effects that:
1. the GPS controlled terminal is connected with the switch controller through a power line, the GPS controlled terminal is connected with the switch controller through the power line, the GPS controlled terminal is connected with the detected GPS receiver through a data line, the opening and closing of the detected GPS receiver and the GPS controlled terminal are realized through the handheld APP control switch controller, the GPS controlled terminal receives and uploads the coordinate information of a detection point detected by the GPS receiver to the server, and a detector can download and process the coordinate information through accessing the server to realize remote control of the GPS receiver during calibration, so that the labor intensity of operators during the calibration of the GPS receiver is reduced, the labor is saved, the calibration cost is reduced, and the calibration efficiency is improved.
2. The GPS receiver calibration device is simple in structure, convenient to use and low in cost, an operator can remotely control the startup and shutdown of the GPS receiver to be detected and the GPS controlled terminal through the handheld APP, then the coordinate information detected by the GPS receiver to be detected can be obtained through accessing the server website, one operator can finish the calibration operation of the GPS receiver to be detected, the operator does not need to repeatedly go and go to the detection point, and the calibration of the GPS receiver becomes simple, convenient and rapid.
Description of the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the present invention;
FIG. 3 is a schematic structural diagram of a GPS controlled terminal according to the present invention;
fig. 4 is a control schematic diagram of the GPS controlled terminal of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, a long-medium baseline measurement system for GPS receiver calibration based on remote wireless communication includes a handheld APP1, a switch controller 2, a GPS controlled terminal 3, a power supply 9 and a data display analysis device 4, wherein the handheld APP1 is wirelessly connected to the switch controller 2 through a GSM communication protocol or a GPRS communication protocol. Switch controller 2 passes through power cord connection 9, power 9 be solar power system, including solar panel 7 and solar energy storage accuse all-in-one 8, solar panel 7 is connected with solar energy storage accuse all-in-one 8 electricity, solar energy storage accuse all-in-one 8 passes through power cord connection switch controller 2. The switch controller 2 is respectively connected with the GPS controlled terminal 3 and the detected GPS receiver 5 through power lines, and the switch controller 2 is a remote IO module. In the embodiment, an MQT004-2G/4G remote IO module produced by Beijing Corsai interconnection technology GmbH is selected, the remote IO module is plugged with a GSM antenna, a GPS controlled terminal 3 is connected with a detected GPS receiver 5 through a data line, the GPS controlled terminal 3 is connected with the server 6 by GSM or GPRS communication protocol, the data display analysis device 4 accesses the server 6 through the Ethernet, the handheld APP1 sends a power on/off signal to the switch controller 2, the switch controller 2 controls the power on/off of the detected GPS receiver 5 and the GPS controlled terminal 3, thereby realizing the startup and shutdown of the detected GPS receiver 5 and the GPS controlled terminal 3, detecting the coordinates of the detection point of the detected GPS receiver 5, and the coordinate data is transmitted to the GPS controlled terminal 3, the GPS controlled terminal 3 uploads the received coordinate information to the server 6, and the data display and analysis device 4 downloads the coordinate information through the access server 6 and performs data processing. The data display and analysis device 4 is a PC computer.
The GPS controlled terminal 3 comprises a shell 31 and a main control board arranged in the shell 31, wherein a main control unit 32, a power supply management module 33, a storage module 34, a light indication module 35, a clock module 36, a transceiver module 37, a mobile communication module 38 and a USB module 39 are arranged on the main control board, the main control unit adopts a Freescale @.MX6UL processor, the power supply management module 33 is electrically connected with a switch controller 2 through a power line, the power supply management module 33 provides a power supply 9 for the main control unit 32, the storage module 34, the light indication module 35, the clock module 36, the transceiver module 37, the mobile communication module 38 and the USB module 39, the storage module 34 is electrically connected with the main control unit 32 and an SD card socket 310 arranged on the shell 31, the storage module 34 stores coordinate information received by the transceiver module 37, the light indication module 35 is electrically connected with an indicator lamp 311 arranged on the shell 31, the clock module 36 is electrically connected with the main control unit 32, and the transceiver module 37 includes an RS232 transceiver module and an RS485 transceiver module. The transceiver module 37 is electrically connected with the main control unit 32 and a transceiver interface 312 arranged on the shell 31, the transceiver interface 312 is connected with the detected GPS receiver 5 through a data line, the transceiver module 37 is used for receiving coordinate information detected by the detected GPS receiver 5, the mobile communication module 38 is electrically connected with the main control unit 32, a mobile communication antenna 313 and a SIM card interface 314 arranged on the shell 31, and the USB module 39 is electrically connected with the main control unit 32 and a USB interface 315 arranged on the shell 31. The main control board is provided with a LAN module 316, and the LAN module 316 is electrically connected with the main control unit 32 and a LAN port 317 provided on the housing 31.
When the device is used, a tester places two detected GPS receivers 5 on two detection points A, B of a long baseline of a calibration field, the antennas of the two GPS receivers are accurately leveled and centered, and after the antennas point to the north, if the operator is located at the detection point A, the detected GPS receiver 5 at the detection point B is connected with the switch controller 2 through a power line, the power-in interface of the switch controller 2 is connected with the solar energy storage and control all-in-one machine 8 through a power line, the power-out interface of the switch controller 2 is respectively connected with the detected GPS receiver 5 at the detection point B and the GPS controlled terminal 3 through power lines, the operator turns on the GPS receiver at the detection point A, simultaneously operates the handheld APP1 to send a start-up signal to the switch controller 2, and after a remote IO module used as the switch controller 2 receives the start-up signal sent by the handheld APP1, the detected GPS receiver 5 at the detection points of the solar energy storage and control all-in-one machine 8 and the detection point B and the GPS controlled terminal 3 are switched on, the solar energy storage and control integrated machine 8 supplies power to the detected GPS receiver 5 at the B detection point and provides electric energy for the GPS controlled terminal 3, the detected GPS receiver 5 at the B detection point and the GPS controlled terminal 3 are started, the two detected GPS receivers 5 respectively detect coordinates of A, B two detection points of a long base line, and according to JJF1118-2004 Global Positioning System (GPS) receiver (geodetic type and navigation type) calibration specification, the detection time of the two GPS receivers is more than or equal to 1.5 hours, and a plurality of groups of coordinates are measured. For the detected GPS receiver 5 at the point a, the operator directly derives the detected coordinate information from the GPS receiver, and for the detected GPS receiver 5 at the point B, the detected coordinates are transmitted to the GPS controlled terminal 3 through a data line, the GPS controlled terminal 3 receives the coordinates and stores the coordinates and uploads the coordinates to the server 6 through the mobile communication module 38, an operator can download the coordinate information by operating a PC computer to access the server 6, the operator collects the coordinate information of two detection points detected by the GPS receiver 5, and calculating the measured value of the distance between the two detection points, wherein the distance between the two detection points of the long baseline of the calibration field is a standard value, the difference value between the calculated measured value and the standard value is the measurement error of the detected GPS receiver 5, and the average value of the measurement errors of the multiple detections is calculated, so that the measurement error of the detected GPS receiver 5 is judged to be within a reasonable error range.
And replacing the detected GPS receiver 5 at the detection point A, repeating the calibration steps, and if the measurement errors of the two times of calibration are within a reasonable error range, indicating that the measurement error of the detected GPS receiver 5 at the detection point B is qualified, wherein the GPS receiver at the detection point B can be used as a standard GPS receiver, and the calibration operation of a plurality of detected GPS receivers can be realized only by replacing the GPS receiver at the detection point A.
It should be noted that the above-mentioned embodiments illustrate rather than limit the technical solutions of the present invention, and that equivalent substitutions or other modifications made by persons skilled in the art according to the prior art are included in the scope of the claims of the present invention as long as they do not exceed the spirit and scope of the technical solutions of the present invention.
Claims (8)
1. A GPS receiver calibration based on long-range wireless communication uses the medium and long base line measurement system, characterized by that: including handheld APP (1), switch controller (2), GPS controlled terminal (3), power (9) and data display analytical equipment (4), handheld APP (1) through mobile communication agreement and switch controller (2) wireless connection, switch controller (2) is through power cord connection power (9), switch controller (2) is through the power cord connect GPS controlled terminal (3) and by GPS receiver (5) respectively, GPS controlled terminal (3) is through data line connection by GPS receiver (5), GPS controlled terminal (3) through mobile communication agreement wireless connection server (6), data display analytical equipment (4) through ethernet access server (6), handheld APP (1) send switch machine signal for switch controller (2), switch controller (2) control by GPS receiver (5) and GPS controlled terminal (3) switch on and off, therefore, the startup and shutdown of the detected GPS receiver (5) and the GPS controlled terminal (3) are realized, the detected GPS receiver (5) detects the coordinates of a detection point where the detected GPS receiver is located and transmits coordinate data to the GPS controlled terminal (3), the GPS controlled terminal (3) uploads the received coordinate information to the server (6), the data display and analysis device (4) downloads the coordinate information through accessing the server (6) and processes the data, the GPS controlled terminal (3) comprises a shell (31) and a main control panel arranged in the shell (31), the main control panel is provided with a main control unit (32), a power management module (33), a storage module (34), a light indication module (35), a clock module (36), a transceiver module (37), a mobile communication module (38) and a USB module (39), and the power management module (33) is electrically connected with the startup and shutdown controller (2) through a power line, the power management module (33) provides a power supply (9) for the main control unit (32), the storage module (34), the light indication module (35), the clock module (36), the transceiver module (37), the mobile communication module (38) and the USB module (39), the storage module (34) is electrically connected with the main control unit (32) and the SD card socket (310) arranged on the shell (31), the storage module (34) stores the coordinate information received by the transceiver module (37), the light indication module (35) is electrically connected with the indicator lamp (311) arranged on the shell (31), the clock module (36) is electrically connected with the main control unit (32), the transceiver module (37) is electrically connected with the main control unit (32) and the transceiver interface (312) arranged on the shell (31), the transceiver interface (312) is connected with the detected GPS receiver (5) through a data line, the receiving and sending module (37) is used for receiving the coordinate information detected by the detected GPS receiver (5), the mobile communication module (38) is electrically connected with the main control unit (32), a mobile communication antenna (313) and a SIM card interface (314) which are arranged on the shell (31), and the USB module (39) is electrically connected with the main control unit (32) and a USB interface (315) which is arranged on the shell (31).
2. The long-range wireless communication-based GPS receiver calibration medium-length baseline measurement system of claim 1, wherein: the handheld APP (1) is wirelessly connected with the switch controller (2) through a GSM communication protocol or a GPRS communication protocol.
3. The long-range wireless communication-based GPS receiver calibration medium-length baseline measurement system of claim 1, wherein: the GPS controlled terminal (3) is in wireless connection with the server through a GSM communication protocol or a GPRS communication protocol.
4. The long-range wireless communication-based GPS receiver calibration medium-length baseline measurement system of claim 1, wherein: the transceiver module (37) comprises an RS232 transceiver module and an RS485 transceiver module.
5. The long-range wireless communication-based GPS receiver calibration medium-length baseline measurement system of claim 1, wherein: the main control board is provided with a LAN module (316), and the LAN module (316) is electrically connected with the main control unit (32) and a LAN port (317) arranged on the shell (31).
6. The long-range wireless communication-based GPS receiver calibration medium-length baseline measurement system of claim 1, wherein: the switch controller (2) is a remote IO module.
7. The long-range wireless communication-based GPS receiver calibration medium-length baseline measurement system of claim 1, wherein: the data display and analysis device (4) is a PC computer.
8. The long-range wireless communication-based GPS receiver calibration medium-length baseline measurement system of claim 1, wherein: the solar energy power generation system is characterized in that the power supply (9) is a solar energy power generation system and comprises a solar energy power generation panel (7) and a solar energy storage and control all-in-one machine (8), the solar energy power generation panel (7) is electrically connected with the solar energy storage and control all-in-one machine (8), and the solar energy storage and control all-in-one machine (8) is connected with the switch controller (2) through a power line.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113625313A (en) * | 2021-08-04 | 2021-11-09 | 河南省计量科学研究院 | GPS receiver calibration medium-long baseline measurement system based on remote wireless communication |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113625313A (en) * | 2021-08-04 | 2021-11-09 | 河南省计量科学研究院 | GPS receiver calibration medium-long baseline measurement system based on remote wireless communication |
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