Portable high-precision positioning and orienting time service device

Abstract

The utility model discloses a portable high-precision positioning directional timing device, which comprises a main body function module, a fixed platform (11), a main antenna (1), a slave antenna (13) and an antenna support rod assembly, the antenna support rod assembly comprises a first assembly and a second assembly, the first assembly is connected with the main antenna (1), the second assembly is connected with the slave antenna (13), and the main body function module is connected with the fixed platform (11). The first assembly and the second assembly are respectively connected with the fixed platform (11), and the platform (11) comprises the main body function module. The antenna comprises the highly integrated main body function module, the antenna support rod assembly, the main antenna and the slave antenna, and has the functions of positioning, orientation and time service at the same time; the antenna and antenna supporting rod assembly has the structural characteristic of quick assembly and disassembly, and is small in size and convenient to carry after being disassembled; the weight of the main body function module and the weight of the antenna and supporting rod assembly are smaller and lighter.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning, orientation and timing, and in particular to a portable high-precision positioning, orientation and timing device. Background Art

[0002] With the rapid development of precision positioning, orientation and timing technologies, the use scenarios of devices with precision positioning, orientation and timing functions are gradually increasing, and more and higher requirements are put forward for the devices, such as mobility, portability and lightweight, so higher integration, newer structures and materials must be adopted to meet the above requirements.

[0003] Most of the devices currently available on the market have the following shortcomings: First, the degree of integration is low, and the equipment that meets the requirements of high-precision positioning and orientation does not have the timing function; second, the equipment that has both high-precision positioning and orientation and timing functions does not have the characteristics of portability, quick assembly and disassembly, and lightweight; third, the positioning and orientation accuracy of the equipment that has both high-precision positioning and orientation and timing functions still has room for further improvement.

[0004] Therefore, it is necessary to propose a high-precision positioning, orientation and timing device with portable and highly integrated features. Summary of the invention

[0005] The utility model aims to overcome the deficiencies of the prior art and provide a portable high-precision positioning, orientation and timing device.

[0006] The purpose of this utility model is achieved through the following technical solutions:

[0007] The utility model provides a portable high-precision positioning, orientation and timing device, comprising a main functional module, a fixed platform, a main antenna, a slave antenna and an antenna support rod assembly, wherein the antenna support rod assembly comprises a first assembly and a second assembly, wherein the first assembly is connected to the main antenna, and the second assembly is connected to the slave antenna, wherein the first assembly and the second assembly are respectively connected to the fixed platform, and the fixed platform comprises the main functional module;

[0008] The first component includes a connector, an adapter, a first set screw, a first carbon fiber tube, a fiber tube connector, a spring locating pin, a second carbon fiber tube, a second set screw and a total support member, wherein the connector is connected to the adapter, the adapter is connected to the first carbon fiber tube via the first set screw, the first carbon fiber tube and the second carbon fiber tube are respectively connected to the fiber tube connector via the spring locating pin, and the second carbon fiber tube is connected to the total support member via the second set screw;

[0009] The first component and the second component are symmetrically distributed around the central axis of the fixed platform, and the positions of the main antenna and the slave antenna are also symmetrically distributed.

[0010] Furthermore, the main functional module includes an external signal processing unit, a power processing unit, a time code unit, a satellite signal receiving and processing component and a time and frequency processing unit, the external signal processing unit, the power processing unit, the time code unit and the time and frequency processing unit are integrated on a circuit board, and the satellite signal receiving and processing component is arranged on an adapter card;

[0011] The output end of the external signal processing unit is respectively connected to the time code unit and the time-frequency processing unit, the output end of the power processing unit is respectively connected to the external signal processing unit, the time code unit and the time-frequency processing unit, the output end of the time code unit is connected to the time-frequency processing unit, the time-frequency processing unit is used to complete high-precision timekeeping, and the satellite signal receiving and processing component is used to complete positioning and orientation.

[0012] Furthermore, the connector and the adapter are connected by screws.

[0013] Furthermore, the adapter is matched with the left end of the first carbon fiber tube through a small clearance between the hole and the axis, and first set screws are symmetrically arranged on both sides of the adapter for fixing the adapter and the first carbon fiber tube.

[0014] Furthermore, the right end of the first carbon fiber tube and the left end of the fiber tube connector are matched with a small hole-axis clearance, and a spring positioning pin is respectively arranged at the front and rear sides of the left end of the fiber tube connector to fix the first carbon fiber tube and the fiber tube connector;

[0015] The right end of the fiber tube connector and the left end of the second carbon fiber tube are matched with a small hole-axis clearance, and a spring positioning pin is also provided on the front and rear sides of the right end of the fiber tube connector to fix the second carbon fiber tube and the fiber tube connector.

[0016] Preferably, the spring locating pin is provided with a pull ring, an external thread and a pin, the spring locating pin is matched with a small clearance between the first carbon fiber tube or the second carbon fiber tube hole axis through the pin, the fiber tube connector is provided with an internal thread, the spring locating pin is threadedly connected to the fiber tube connector, and the pull ring is used for quick disassembly.

[0017] Furthermore, the right end of the second carbon fiber tube is matched with the main support member with a small hole-axis clearance, and the front and rear sides of the main support member are provided with second fixing screws in a symmetrical distribution manner for fixing the second carbon fiber tube and the main support member.

[0018] Furthermore, the main support member is provided with two circular shaft structures, and the fixed platform is provided with a hole, and the hole of the fixed platform and the two circular shaft structures of the main support member form a small gap hole-shaft fit.

[0019] Furthermore, the main antenna is provided with an antenna feeder, the second carbon fiber tube is provided with a reserved hole, the antenna feeder passes through the reserved hole to the adapter, the connector is provided with an external thread, the antenna feeder end is provided with an internal thread, and the antenna feeder is threadedly connected to the connector.

[0020] Preferably, the antenna feeder is provided with a connection unit, and the connection unit is used to connect with the main functional module.

[0021] The beneficial effects of the utility model are:

[0022] 1) The utility model includes a highly integrated main functional module, an antenna support rod assembly, a main antenna and a slave antenna, which can simultaneously have positioning, orientation and timing functions;

[0023] 2) The antenna plus antenna support rod assembly of the utility model has a structural feature of rapid assembly and disassembly, and after disassembly, the size is small and easy to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural composition diagram of the main functional modules of a portable high-precision positioning, orientation and timing device according to an embodiment of the utility model;

[0025] Figure 2 This is a front view of a portable high-precision positioning, orientation and timing device according to an embodiment of the utility model;

[0026] Figure 3 A top view of a portable high-precision positioning, orientation and timing device according to an embodiment of the utility model;

[0027] Figure 4 This is a schematic structural diagram of the connection between a connector, an adapter and a first carbon fiber tube of a portable high-precision positioning, orientation and timing device according to an embodiment of the utility model;

[0028] Figure 5 It is a structural schematic diagram of a portable high-precision positioning, orientation and timing device in which a fiber tube connector is connected to a first fiber tube and a second fiber tube in an embodiment of the utility model;

[0029] Figure 6 This is a schematic structural diagram of the connection between the second fiber tube and the main support member of a portable high-precision positioning, orientation and timing device according to an embodiment of the utility model;

[0030] Figure 7 This is a schematic diagram of the spring positioning pin structure of a portable high-precision positioning, orientation and timing device according to an embodiment of the utility model;

[0031] In the figure, 1-main antenna, 2-connector, 3-adapter, 4-first fixing screw, 5-first carbon fiber tube, 6-fiber tube connector, 7-spring positioning pin, 8-second carbon fiber tube, 9-second fixing screw, 10-general support, 11-fixed platform, 12-antenna feeder, 13-slave antenna, 14-pull ring, 15-external thread, 16-pin, 17-satellite signal receiving and processing component, 18-adapter card, 19-circuit board. DETAILED DESCRIPTION

[0032] The following will be combined with the embodiments to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0033] Exemplarily, the structure of the main functional module of the present invention is as follows: Figure 1As shown, the main functional module integrates the external signal processing unit, the power processing unit, the time code unit, and the time frequency processing unit on a circuit board 19, and the satellite signal receiving and processing component 17 is installed on the adapter card 18, which can simultaneously realize high-precision positioning, orientation and timing functions, and realizes high integration; the external signal processing unit converts the external IRIG-B (AC) and IRIG-B (DC) input time code signals into LVTTL levels and sends them to the time code unit for use; the power processing unit is externally powered by DC12, and the external DC12V power supply needs to be converted into 5V, 3.3V, and 1.2V power supplies internally, and the external The DC12V input from the part, +12V is converted to +5.5V by DC / DC conversion, and then converted to 5V by two LDOs to power the crystal oscillator and the main antenna respectively, so as to reduce the power loss during power conversion. The DC / DC chip is used to convert and step down the 12V to +3.3V and provide them to the corresponding functional modules as needed; the TOD output unit converts the level of the received system TOD and outputs it to the outside, and reports the status check result to the time and frequency unit through the data control bus; the satellite signal receiving and processing component 17 is composed of an antenna, a multiplexer and a receiver, and supports the Beidou-3 satellite signal , supports dual-antenna positioning and orientation, and has a differential position calibration function. The RNSS navigation signal is transmitted to the receiving antenna through space loss and input into the receiver module. The receiver module completes the signal search, capture, and tracking, and completes the data synchronization establishment and data demodulation; the time and frequency processing unit uses the received B (DC), B (AC), 10MHz and other external reference sources as reference signals, and the measurement unit measures the phase difference between the temperature compensated crystal oscillator (TCXO) and the reference 1PPS. Through the filtering calculation of the operation processing unit, the rated frequency of the temperature compensated crystal oscillator is corrected to obtain an accurate 10MHz frequency standard signal, and the time code generation unit generates 1PPS, Serial time code and other time codes continuously analyze temperature and voltage control data during taming, intelligently separate the temperature and aging characteristics of the temperature-compensated crystal oscillator, and accurately compensate the temperature-compensated crystal oscillator according to the crystal oscillator temperature and aging characteristic curves obtained by analysis and calculation after the reference is invalid, so as to achieve high-precision timekeeping and ensure long-term stable and reliable operation of the system. It adopts the non-communication satellite common view timing technology, and the UTS time synchronization accuracy reaches 1.16ns (rms); the 1PPS station-to-station synchronization accuracy reaches 0.5h: 2.26ns and 1h: 2.29ns; the main functional module is small in size, which has the advantage of miniaturization compared with similar products.

[0034] For example, the front view of the present invention is as follows Figure 2 As shown, the top view is Figure 3The antenna support rod assembly installation steps are as follows: insert the right end of the first carbon fiber tube 5 and the left end of the second carbon fiber tube 8 into the hole of the fiber tube connector 6 respectively, and the structural schematic diagram of the first carbon fiber tube 5 and the second carbon fiber tube 8 connected to the fiber tube connector 6 is shown in Figure 5 As shown; the carbon fiber tube has the characteristic of being lighter than metal. The right end of the first carbon fiber tube 5 is connected to the left end of the fiber tube connector 6 by a hole-axis small clearance fit, and the right end of the fiber tube connector 6 is connected to the left end of the second carbon fiber tube 8 by a hole-axis small clearance fit, and the threaded holes at both ends of the fiber tube connector 6 are roughly aligned with the small holes of the first carbon fiber tube 5 and the second carbon fiber tube 8. The external threads 15 of the two spring locating pins 7 are screwed into the threaded holes at both ends of the fiber tube connector 6 respectively, and the fiber tube connector 6 and the first carbon fiber tube 5 are relatively rotated and moved for fine adjustment, and the pins of the spring locating pins 7 will automatically pop into the small holes reserved in the first carbon fiber tube 5. Similarly, the fiber tube connector 6 and the second carbon fiber tube 8 are relatively rotated and moved for fine adjustment, and the pin 16 of the spring locating pin 7 will automatically pop into the small hole reserved in the second carbon fiber tube 8. The pin 16 and the first carbon fiber tube are matched with a small hole-axis clearance. The clearance fit refers to a fit with a clearance (including a minimum clearance equal to zero). At this time, the tolerance zone of the hole is above the tolerance zone of the shaft, that is, the actual size of the hole is always greater than or equal to the actual size of the shaft.

[0035] For example, the structural diagram of the connection between the connector 2, the adapter 3 and the first carbon fiber tube 5 is as shown in FIG. Figure 4 As shown, the connector 2 in this embodiment uses an SMA-KFKG connector. The connector 2 is fixedly connected to the flange surface of the adapter 3 with a pan head screw, and the first carbon fiber tube 5 is inserted into the hole of the adapter 3. The adapter 3 and the left end of the first carbon fiber tube 5 are matched through a small gap between the hole axis. Then the right end of the second carbon fiber tube 8 is inserted into the hole of the total support 10, and the main antenna 1 is screwed into the external thread of the connector 2. The total support 10 and the adapter 3 are relatively rotated so that the two small axes of the total support 10 and the main antenna 1 are roughly perpendicular to the ground. The two first set screws 4 are screwed into the threaded holes reserved on both sides of the adapter 3, and the screw heads are against the tube wall of the first carbon fiber tube 5.

[0036] For example, the structural diagram of the connection between the second fiber tube 8 and the main support member 10 is as follows: Figure 6As shown, the two second set screws 9 are screwed into the threaded holes reserved on both sides of the total support 10, and the screw heads are against the tube wall of the second carbon fiber tube 8. The two axes of the total support 10 are inserted into the two holes of the platform 11 to form a small gap between the holes and the axes. The plane of the total support 11 fits the horizontal plane reserved by the platform to support the entire assembly. The main antenna 1 is provided with an antenna feeder 12. The antenna feeder 12 is passed through the hole reserved in the second carbon fiber tube 8 to the position of the adapter 3, and the external thread 15 of the antenna feeder 12 is screwed into the internal thread of the SMA-KFKG connector 2 to achieve connection. The antenna feeder 12 has a connection unit at one end outside the hole, and the connection unit is connected to the connection device corresponding to the main antenna on the main functional module, thereby realizing information transmission between the antenna and the main functional module. The above completes the installation and fixation of the first component of the antenna support rod assembly (including the antenna). The main antenna is assembled on the leftmost side of the first component, and the slave antenna is assembled on the rightmost side of the second component. Since the structure of the antenna support rod assembly is symmetrically distributed as the first component and the second component based on the center of the platform, the installation method of the first component and the second component is consistent. The distance between the main and slave antennas of the utility model is 2.05 meters, the positioning accuracy is better than 10m, and the directional accuracy is better than 0.1 degree, which has the characteristic of high positioning accuracy.

[0037] For example, the schematic diagram of the spring positioning pin structure of the utility model is as follows: Figure 7 As shown, the pull ring 14 of the spring positioning pin 7 is directly pulled outward so that the upper part of the structure is pulled up as a whole, and the pin 16 is quickly pulled to the outside of the small hole reserved for the first carbon fiber tube 5 or the second carbon fiber tube 8. At the same time, the upper part of the structure is rotated to form a self-locking with the lower part of the structure, thereby releasing the limit of the pin 16 on the first carbon fiber tube 5 or the second carbon fiber tube 8 and the fiber tube connector 6. The two can be pulled out and separated, and rapid disassembly is achieved. The single section length of the support rod after separation is 401mm, compared with the length of 850mm before separation, and the portability and miniaturization characteristics are obvious. Similarly, the structure can also achieve rapid assembly. In summary, the utility model structure has the structural characteristics of rapid assembly and disassembly.

[0038] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A portable high-precision positioning, orientation and timing device, characterized in that: The invention comprises a main functional module, a fixed platform (11), a main antenna (1), a slave antenna (13) and an antenna support rod assembly, wherein the antenna support rod assembly comprises a first assembly and a second assembly, the first assembly being connected to the main antenna (1), the second assembly being connected to the slave antenna (13), the first assembly and the second assembly being connected to the fixed platform (11) respectively, and the fixed platform (11) comprising the main functional module; The first component comprises a connector (2), an adapter (3), a first set screw (4), a first carbon fiber tube (5), a fiber tube connector (6), a spring positioning pin (7), a second carbon fiber tube (8), a second set screw (9) and a total support member (10), wherein the connector (2) is connected to the adapter (3), the adapter (3) is connected to the first carbon fiber tube (5) via the first set screw (4), the first carbon fiber tube (5) and the second carbon fiber tube (8) are respectively connected to the fiber tube connector (6) via the spring positioning pin (7), and the second carbon fiber tube (8) is connected to the total support member (10) via the second set screw (9); The first component and the second component are symmetrically distributed with the central axis of the fixed platform (11) as the center, and the positions of the main antenna (1) and the slave antenna (13) are also symmetrically distributed.

2. A portable high-precision positioning, orientation and timing device according to claim 1, characterized in that: The main functional module includes an external signal processing unit, a power processing unit, a time code unit, a satellite signal receiving and processing component and a time and frequency processing unit. The external signal processing unit, the power processing unit, the time code unit and the time and frequency processing unit are integrated on a circuit board, and the satellite signal receiving and processing component is arranged on an adapter card; The output end of the external signal processing unit is respectively connected to the time code unit and the time-frequency processing unit, the output end of the power processing unit is respectively connected to the external signal processing unit, the time code unit and the time-frequency processing unit, the output end of the time code unit is connected to the time-frequency processing unit, the time-frequency processing unit is used to complete high-precision timekeeping, and the satellite signal receiving and processing component is used to complete positioning and orientation.

3. A portable high-precision positioning, orientation and timing device according to claim 1, characterized in that: The connector (2) and the adapter (3) are connected via screws.

4. A portable high-precision positioning, orientation and timing device according to claim 1, characterized in that: The adapter (3) and the left end of the first carbon fiber tube (5) are matched via a small hole-axis clearance, and first fixing screws (4) are symmetrically arranged on both sides of the adapter (3) for fixing the adapter (3) and the first carbon fiber tube (5).

5. A portable high-precision positioning, orientation and timing device according to claim 1, characterized in that: The right end of the first carbon fiber tube (5) and the left end of the fiber tube connector (6) are matched with a small hole-axis clearance, and a spring positioning pin (7) is respectively provided at the front and rear sides of the left end of the fiber tube connector (6) for fixing the first carbon fiber tube (5) and the fiber tube connector (6); The right end of the fiber tube connector (6) and the left end of the second carbon fiber tube (8) are matched with each other with a small hole-axis clearance, and a spring positioning pin (7) is also provided on the front and rear sides of the right end of the fiber tube connector (6) for fixing the second carbon fiber tube (8) and the fiber tube connector (6).

6. A portable high-precision positioning, orientation and timing device according to claim 5, characterized in that: The spring positioning pin (7) is provided with a pull ring (14), an external thread (15) and a pin (16); the spring positioning pin (7) is matched with a small clearance between the hole axis of the first carbon fiber tube (5) or the second carbon fiber tube (8) via the pin (16); the fiber tube connecting piece (6) is provided with an internal thread; the spring positioning pin (7) is threadedly connected to the fiber tube connecting piece (6); and the pull ring (14) is used for quick disassembly.

7. A portable high-precision positioning, orientation and timing device according to claim 1, characterized in that: The right end of the second carbon fiber tube (8) is matched with the main support member (10) with a small hole-axis clearance, and the front and rear sides of the main support member (10) are provided with second fixing screws (9) in a symmetrical distribution manner for fixing the second carbon fiber tube (8) and the main support member (10).

8. A portable high-precision positioning, orientation and timing device according to claim 1, characterized in that: The total support member (10) is provided with two circular shaft structures, and the fixed platform (11) is provided with a hole, and the hole of the fixed platform (11) and the two circular shaft structures of the total support member (10) form a small gap hole-shaft fit.

9. A portable high-precision positioning, orientation and timing device according to claim 1, characterized in that: The main antenna (1) is provided with an antenna feeder (12); the second carbon fiber tube (8) is provided with a reserved hole; the antenna feeder (12) passes through the reserved hole to the adapter (3); the connector (2) is provided with an external thread; an end of the antenna feeder (12) is provided with an internal thread; the antenna feeder (12) is threadedly connected to the connector (2).

10. A portable high-precision positioning, orientation and timing device according to claim 9, characterized in that: The antenna feeder (12) is provided with a connection unit, and the connection unit is used to be connected to the main functional module.

Images