Concentrator remote communication unit with Beidou high-precision positioning function

Abstract

The utility model discloses a concentrator remote communication unit with Beidou high-precision positioning, which respectively communicates with an acquisition terminal, a satellite and a master station, and comprises a shell and a mainboard PCB (printed circuit board) assembly arranged in the shell; the mainboard PCB assembly comprises a PPP precision single point positioning module and a communication module processor. The PPP precision single point positioning module communicates with a satellite; the PPP precision point positioning module is connected with the communication module processor, and the communication module processor is in communication connection with the master station; the PPP precision single-point positioning module obtains high-precision position information, time service information and module ID information and sends the information to the master station through the communication module processor. According to the utility model, functions of accurate positioning, timing, and communication between the main station and the acquisition terminal of the power utilization information acquisition system are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of power consumption information technology, and more specifically, to a concentrator remote communication unit with Beidou high-precision positioning. Background Art

[0002] Power consumption information collection is one of the key tasks of the State Grid. The accuracy and stability of power consumption information collection will affect the data collection and analysis on the master station side, thus affecting marketing metering work such as time-of-use pricing and line loss calculation.

[0003] Metering collection devices, electric energy meters, etc. are mainly time-calibrated through master station broadcasting. Usually, the time-calibration period is long. Affected by communication quality, equipment operation years, on-site operation environment, etc., the accuracy is not high and the real-time performance is poor.

[0004] At present, the remote communication unit in the concentrator either does not have a positioning and time service function, or only has a positioning function with a positioning accuracy of meters, which cannot meet the needs of high-precision positioning of on-site terminals. In actual application conditions, most of the collection terminals are installed in positions with serious occlusion and large multi-path effect interference, and the positioning data error is large, and the application effect is very unsatisfactory.

[0005] Therefore, how to provide a remote communication unit that can provide accurate geographical information and accurate satellite time information of the current concentrator for the master station of the power information collection system is an urgent problem to be solved by those skilled in the art. Content of the Utility Model

[0006] In view of this, the utility model provides a concentrator remote communication unit with Beidou high-precision positioning for remote communication between the master station of the power consumption information collection system and the concentrator to provide accurate geographical information and accurate satellite time information of the current concentrator.

[0007] In order to achieve the above object, the utility model adopts the following technical solutions:

[0008] A concentrator remote communication unit with Beidou high-precision positioning communicates with a collection terminal, a satellite and a master station respectively, and includes a housing and a main board PCB assembly, and the main board PCB assembly is arranged in the housing;

[0009] The main board PCB assembly includes a PPP precise point positioning module and a communication module processor;

[0010] The PPP precise point positioning module communicates with the satellite;

[0011] The PPP precise point positioning module is connected to the communication module processor, and the communication module processor is communicatively connected to the master station;

[0012] The PPP precise point positioning module obtains high-precision position information, timing information, and module ID information and sends them to the master station through the communication module processor.

[0013] Preferably, the concentrator remote communication unit with Beidou high-precision positioning further includes a power interface, and the power interface is respectively connected to the PPP precise point positioning module and the communication module processor.

[0014] Preferably, the PPP precise point positioning module includes a GNSS module and a GPS antenna; the GNSS module reads positioning and time calibration information regularly or according to the master station polling instruction through the GPS antenna, and the GNSS module is connected to the communication module processor.

[0015] Preferably, the concentrator remote communication unit with Beidou high-precision positioning further includes a SIM card, and the SIM card is connected to the communication module processor.

[0016] Preferably, the concentrator remote communication unit with Beidou high-precision positioning further includes a 4G antenna, and the communication module processor communicates with the master station through the 4G antenna.

[0017] Preferably, the housing includes an upper housing and a lower housing.

[0018] Preferably, the communication module processor is an MCU, 4G, and Linux system.

[0019] Preferably, the transmission protocol between the communication module processor and the master station is the DL / T698.45 protocol.

[0020] Preferably, the concentrator remote communication unit is connected to the acquisition terminal through a 30PIN pin header, and transmits the acquisition data of the acquisition terminal to the master station through the communication module processor.

[0021] Preferably, the transmission protocol between the communication module processor and the acquisition terminal is

[0022] Q / GDW10376.3-2019.

[0023] Through the above technical solutions, compared with the prior art, the present utility model discloses a concentrator remote communication unit with Beidou high-precision positioning, which gives full play to the timing and positioning functions of the Beidou satellite navigation system and realizes the supplement to the traditional network timing method; the positioning accuracy is refined from the original meter level to within 50 cm, greatly improving the positioning accuracy; based on the satellite timing of the Beidou satellite navigation system, compared with the current master station broadcast network timing scheme, it has the advantages of no network delay, not relying on the master station server, and not relying on the network. Description of the Drawings

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on the provided drawings.

[0025] Figure 1 The accompanying drawing is a schematic diagram of the overall structure of a concentrator remote communication unit with Beidou high-precision positioning provided by the present invention;

[0026] Figure 2 The accompanying drawing is a schematic diagram of the connection link of the concentrator remote communication unit provided by the present invention;

[0027] Figure 3 The accompanying drawing is a schematic diagram of the main functions of the concentrator remote communication unit provided by the present invention;

[0028] Figure 4 The accompanying drawing is a schematic diagram of the circuit connection of the PPP precise point positioning module provided by the present invention;

[0029] Figure 5 The accompanying drawing is a schematic diagram of the working process of the acquisition terminal remote communication unit provided by the present invention;

[0030] Among them, 1 - SIM card door, 2 - upper housing, 3 - indicator light light guide column, 4 - 30PIN pin header, 5 - main board PCB assembly, 6 - RJ45 network port, 7 - 4G antenna, 8 - GPS antenna, 9 - lower housing. Detailed implementation manners

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0032] The embodiment of the present invention discloses a concentrator remote communication unit with Beidou high-precision positioning, which communicates with an acquisition terminal, a satellite, and a master station respectively, as Figure 1 and Figure 2 shown, including a housing and a main board PCB assembly, and the main board PCB assembly is arranged inside the housing;

[0033] The main board PCB assembly includes a PPP precise point positioning module and a communication module processor;

[0034] The PPP precise point positioning module communicates with the satellite;

[0035] The PPP precise point positioning module is connected to the communication module processor, and the communication module processor is communicatively connected to the master station.

[0036] The PPP precise point positioning module obtains high-precision position information, timing information, and module ID information and sends them to the master station through the communication module processor.

[0037] To further implement the above technical solution, a concentrator remote communication unit with Beidou high-precision positioning, such as Figure 3 , further includes a power interface, and the power interface is respectively connected to the PPP precise point positioning module and the communication module processor.

[0038] In this embodiment, the operating voltage of the power interface is DC4V, with an error of ±5%, and the peak current does not exceed 3A.

[0039] To further implement the above technical solution, the PPP precise point positioning module includes a GNSS module and a GPS antenna; the GNSS module reads positioning and timing information regularly or according to the master station polling command through the GPS antenna, and the GNSS module is connected to the communication module processor.

[0040] To further implement the above technical solution, a concentrator remote communication unit with Beidou high-precision positioning further includes a SIM card, and the SIM card is connected to the communication module processor.

[0041] To further implement the above technical solution, a concentrator remote communication unit with Beidou high-precision positioning further includes a 4G antenna, and the communication module processor is communicatively connected to the master station through the 4G antenna.

[0042] To further implement the above technical solution, the housing includes an upper housing and a lower housing.

[0043] The upper housing is provided with a SIM card door for protecting the SIM card.

[0044] To further implement the above technical solution, the communication module processor is an MCU, 4G, Linux system.

[0045] To further implement the above technical solution, the transmission protocol between the communication module processor and the master station is the DL / T698.45 protocol.

[0046] In practical applications, a concentrator remote communication unit with Beidou high-precision positioning is also provided with an RJ45 network port and can be connected to the master station in a wired connection manner.

[0047] To further implement the above technical solution, the concentrator remote communication unit is connected to the acquisition terminal through a 30-pin pin header, and transmits the acquisition data of the acquisition terminal to the master station through the communication module processor.

[0048] In this embodiment, the acquisition terminal is a concentrator.

[0049] To further implement the above technical solution, the transmission protocol between the communication module processor and the acquisition terminal is Q / GDW10376.3-2019.

[0050] In practical applications, an indicator light light guide column is provided inside the housing to indicate data transmission signals, network signals, power supply signals, etc.

[0051] In this embodiment, as Figure 4 , the specific content of the circuit connection of the PPP precise point positioning module of the acquisition terminal remote communication unit is: the PPP precise point positioning module is connected to the communication module processor

[0052] The acquisition terminal remote communication unit is powered by the concentrator interface, using a low dropout regulator power supply, converting 4V to 3.3V to power the PPP precise point positioning module;

[0053] The PPP precise point positioning module obtains position information and timing information through the satellite signal receiving antenna, and is connected to the communication module processor through the UART interface, and transmits the position information and timing information to the communication module processor.

[0054] The PPP precise point positioning module has two main advantages: one is the broadcast mode, which can simplify the user side; the other is that it uses far fewer base stations than RTK, and can maintain global consistency in positioning accuracy. In practical applications, the PPP positioning mode has a horizontal accuracy better than 30 cm and a vertical accuracy better than 50 cm in open and unobstructed areas, and the initial positioning convergence time is less than 30 minutes.

[0055] As Figure 5 , in practical applications, the working process of a concentrator remote communication unit with Beidou high-precision positioning is specifically as follows: after the module is powered on, it is initialized, the GNSS is reset and initialized, various settings are made for the GNSS, and after the settings are successful, the positioning and timing information can be read regularly or according to the call measurement, and the high-precision positioning and timing functions are completed by uploading to the platform.

[0056] The timing function of the present utility model has the following advantages based on satellite timing of the Beidou satellite navigation system compared with the current master station broadcast network timing scheme:

[0057] (1) There is no network delay: Satellite timing directly calculates the satellite time through the positioning remote communication unit to obtain nanosecond-level time, and the time is more accurate;

[0058] (2) Independent of the master station server: Satellite timekeeping does not use the server to frequently send commands, and does not cause data or communication pressure on the master station;

[0059] (3) Independent of the network: It can be used normally in areas without coverage of the wireless private network or areas with poor network conditions.

[0060] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple. For the relevant parts, reference can be made to the description in the method part.

[0061] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A concentrator remote communication unit with Beidou high-precision positioning, communicating with the acquisition terminal, satellite and main station respectively, characterized in that: It includes a housing and a mainboard PCB assembly, wherein the mainboard PCB assembly is arranged in the housing; The mainboard PCB assembly includes the PPP precision single-point positioning module and the communication module processor; PPP precise point positioning module and satellite communication; The PPP precision single-point positioning module is connected to the communication module processor, and the communication module processor is connected to the main station for communication; The PPP precise point positioning module obtains high-precision location information, timing information and module ID information and sends it to the main station through the communication module processor.

2. A concentrator remote communication unit with Beidou high-precision positioning according to claim 1, characterized in that: It also includes a power supply interface, which is connected to the PPP precision single-point positioning module and the communication module processor respectively.

3. A concentrator remote communication unit with Beidou high-precision positioning according to claim 1, characterized in that: The PPP precise point positioning module includes a GNSS module and a GPS antenna; the GNSS module reads the positioning and timing information through the GPS antenna timing or according to the master station call command, and the GNSS module is connected to the communication module processor.

4. A concentrator remote communication unit with Beidou high-precision positioning according to claim 1, characterized in that: It also includes a SIM card, which is connected to the communication module processor.

5. A concentrator remote communication unit with Beidou high-precision positioning according to claim 1, characterized in that: It also includes a 4G antenna, and the communication module processor is connected to the main station through the 4G antenna.

6. A concentrator remote communication unit with Beidou high-precision positioning according to claim 1, characterized in that: The housing includes an upper housing and a lower housing.

7. A concentrator remote communication unit with Beidou high-precision positioning according to claim 1, characterized in that: The communication module processor is MCU, 4G, and Linux system.

8. A concentrator remote communication unit with Beidou high-precision positioning according to claim 1, characterized in that: The transmission protocol between the communication module processor and the main station is the DL / T698.45 protocol.

9. A concentrator remote communication unit with Beidou high-precision positioning according to claim 1, characterized in that: The remote communication unit of the concentrator is connected to the collection terminal through the pin 30PIN, and the collection data of the collection terminal is transmitted to the main station through the communication module processor.

10. A concentrator remote communication unit with Beidou high-precision positioning according to claim 8, characterized in that: The transmission protocol between the communication module processor and the acquisition terminal is Q / GDW10376.3-2019.

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