Data acquisition terminal control circuit based on Beidou satellite communication

Abstract

The utility model provides a data acquisition terminal control circuit based on Beidou satellite communication, which comprises a power supply, a voltage regulation power supply circuit, an electric power acquisition terminal main control circuit, an electric power acquisition data communication circuit, a storage circuit and a clock circuit, the output end of the voltage regulation power supply circuit is in power supply connection with the power acquisition terminal main control circuit, the power acquisition data communication circuit, the storage circuit and the clock circuit, and the input end of the power acquisition terminal main control circuit is connected with the output end of the clock circuit; the output end of the power acquisition terminal main control circuit is connected with the input end of the storage circuit and the input end of the power acquisition data communication circuit, and the output end of the power acquisition data communication circuit is connected with a Beidou satellite communication antenna. The beneficial effects of the utility model are that electric power data acquisition in remote areas without signals can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of circuits, in particular to a data acquisition terminal control circuit based on Beidou satellite communication. Background Art

[0002] The BeiDou Navigation Satellite System (BDS) is a global satellite navigation system independently developed by China. It is the third mature satellite navigation system, following the US Global Positioning System (GPS) and the Russian GLONASS. BDS, along with the US GPS, Russia's GLONASS, and the EU's GALILEO, is a recognized supplier by the United Nations Committee on Satellite Navigation. Composed of three components: the air segment, the ground segment, and the user segment, the BDS provides high-precision, highly reliable positioning, navigation, and timing services to a wide range of users around the world, 24 / 7. It also features short message communication capabilities and has achieved preliminary regional navigation, positioning, and timing capabilities, with positioning accuracy of 10 meters, velocity measurement accuracy of 0.2 meters per second, and timing accuracy of 10 nanoseconds.

[0003] With the development of smart grid technology and the comprehensive construction of power consumption information collection systems, wireless meter reading technology for power systems has become increasingly mature. However, during field operation, many wireless public network signal collection devices connected to power consumption information collection terminals are installed in mobile signal blind spots. This results in the wireless public network signal module being unable to go online, unable to exchange data with the system master station, or experiencing unstable communication. This is especially true in vast uninhabited areas and mountainous areas with poor communication signal coverage or signal quality. Mobile signal coverage is not always sufficient, so GPRS wireless meter reading cannot be fully applied in communication blind spots.

[0004] Therefore, how to find an effective communication channel to meet the meter reading needs of gateways in vast uninhabited areas and mountainous areas without communication signal coverage and with poor signal quality has become a problem that must be solved.

[0005] However, if the conventional GPRS method is to be used to transmit data in remote areas, it is necessary to build communication base stations. Since the deployment of communication base stations is expensive, the cost of a base station generally requires an investment of at least hundreds of thousands of yuan, and the coverage range of a single base station is very limited. Investing in too many base stations will cost more, and the economic benefits brought by excessive investment will be very low. Utility Model Content

[0006] In order to solve the problems in the prior art, the present invention provides a data acquisition terminal control circuit based on Beidou satellite communication. By arranging a power supply, a voltage adjustment power supply circuit, a power acquisition terminal main control circuit, a power acquisition data communication circuit, a storage circuit and a clock circuit that cooperate with each other in the data acquisition terminal control circuit based on Beidou satellite communication, the power acquisition terminal main control circuit can remotely send the collected power data through the power acquisition data communication circuit and the Beidou satellite communication antenna, and can realize power data collection in remote areas with no signal, thereby solving the problems in the prior art of difficulty in power data collection in remote areas with no signal and excessively high GPRS transmission costs.

[0007] The utility model provides a data acquisition terminal control circuit based on Beidou satellite communication, which includes a power supply, a voltage adjustment power supply circuit, a power acquisition terminal main control circuit, a power acquisition data communication circuit, a storage circuit and a clock circuit. The output end of the power supply is connected to the input end of the voltage adjustment power supply circuit, the output end of the voltage adjustment power supply circuit is connected to the power acquisition terminal main control circuit, the power acquisition data communication circuit, the storage circuit and the clock circuit for power supply, the input end of the power acquisition terminal main control circuit is connected to the output end of the clock circuit, the output end of the power acquisition terminal main control circuit is connected to the input end of the storage circuit and the input end of the power acquisition data communication circuit, the output end of the power acquisition data communication circuit is connected to the Beidou satellite communication antenna, and the power acquisition terminal main control circuit can remotely send the collected power data through the power acquisition data communication circuit and the Beidou satellite communication antenna.

[0008] The present utility model is further improved. A main control chip U1 is provided in the main control circuit of the power collection terminal. The main control chip U1 is provided with 128 pins. Pins 9, 20, 60, 85, and 102 of the main control chip U1 are connected to the output end of the voltage adjustment power supply circuit, pins 97, 98, and 99 of the main control chip U1 are connected to the input end of the power collection data communication circuit, pins 74, 75, and 76 of the main control chip U1 are connected to the output end of the clock circuit, and pins 52, 53, 54, 55, 56, 57, 58, and 59 of the main control chip U1 are connected to the input end of the storage circuit.

[0009] The utility model is further improved. A voltage stabilizing chip U5, a diode D2 and an inductor L2 are provided in the voltage regulating power supply circuit. The voltage stabilizing chip U5 is provided with 6 pins. The 5th pin of the voltage stabilizing chip U5 is connected to the cathode of the diode D2, the anode of the diode D2 is connected to the output end of the power supply, the 6th pin of the voltage stabilizing chip U5 is connected to one end of the inductor L2, and the other end of the inductor L2 is connected to the 9th, 20th, 60th, 85th and 102th pins of the power acquisition data communication circuit, the storage circuit, the clock circuit and the main control chip U1 for power supply.

[0010] The present utility model is further improved. The power collection data communication circuit is provided with a data communication chip U8, a resistor R36, a resistor R38 and a resistor R42, wherein the data communication chip U8 is provided with 8 pins, the 8th pin of the data communication chip U8 is connected to the other end of the inductor L2, the 1st pin of the data communication chip U8 is connected to one end of the resistor R36, and the other end of the resistor R36 is connected to the 98th pin of the main control chip U1, the 2nd and 3rd pins of the data communication chip U8 are connected to one end of the resistor R38, and the other end of the resistor R38 is connected to the 97th pin of the main control chip U1, the 4th pin of the data communication chip U8 is connected to one end of the resistor R42, and the other end of the resistor R42 is connected to the 99th pin of the main control chip U1, and the 6th and 7th pins of the data communication chip U8 are connected to the Beidou satellite communication antenna.

[0011] The utility model is further improved. A data storage chip U2 is provided in the storage circuit. The data storage chip U2 is provided with 48 pins. Pins 12 and 37 of the data storage chip U2 are connected to the other end of the inductor L2. Pins 29, 30, 31, 32, 41, 42, 43 and 44 of the data storage chip U2 are respectively connected to pins 52, 53, 54, 55, 56, 57, 58 and 59 of the main control chip U1.

[0012] The present utility model is further improved. A timing chip U3 and a diode D1 are provided in the clock circuit. The timing chip U3 is provided with 14 pins. Pins 6 and 7 of the timing chip U3 are connected to the cathode of the diode D1, the anode of the diode D1 is connected to the other end of the inductor L2, and pins 2, 10, and 13 of the timing chip U3 are connected to pins 74, 76, and 75 of the main control chip U1, respectively.

[0013] The present invention is further improved, and the model of the main control chip U1 is Xintang NUC980DK63YC.

[0014] The present invention is further improved in that the model of the data communication chip U8 is RS485, and the model of the data storage chip U2 is NADA FLASH.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: providing a data acquisition terminal control circuit based on Beidou satellite communication, by arranging a power supply, a voltage adjustment power supply circuit, a power acquisition terminal main control circuit, a power acquisition data communication circuit, a storage circuit and a clock circuit that cooperate with each other in the data acquisition terminal control circuit based on Beidou satellite communication, the power acquisition terminal main control circuit can remotely send the collected power data through the power acquisition data communication circuit and the Beidou satellite communication antenna, thereby realizing power data acquisition in remote areas without signals, utilizing the short message communication function of the Beidou satellite navigation system, without relying on the ground communication network, and realizing information transmission and reception as long as it is within the coverage of the Beidou satellite signal, the positioning accuracy of the Beidou system can meet the requirements for determining the location of the power consumption information collection terminal, and its communication link is relatively stable and reliable. For the power system, not only can power data be effectively collected, but its accurate location information also helps to quickly locate the fault point of the power equipment, thereby improving the operation and maintenance efficiency, and the data acquisition terminal has low cost, compact size and easy installation, solving the problems of difficulty in power data collection in remote areas without signals and high GPRS transmission cost in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a functional block diagram of a data acquisition terminal control circuit based on Beidou satellite communication in the present utility model;

[0018] Figure 2 This is a circuit diagram of the main control circuit of the power collection terminal of the utility model;

[0019] Figure 3 This is a circuit block diagram of the voltage regulating power supply circuit of the present utility model;

[0020] Figure 4 This is a circuit diagram of the power collection data communication circuit of the utility model;

[0021] Figure 5 This is a circuit block diagram of the storage circuit of the present utility model;

[0022] Figure 6 This is a circuit diagram of the clock circuit of the present utility model. DETAILED DESCRIPTION

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this utility model belongs. The terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The terms "including" and "having" and any variations thereof in the specification and claims of this utility model and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this utility model or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0024] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0025] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0026] like Figures 1-6As shown, the utility model provides a data acquisition terminal control circuit based on Beidou satellite communication, including a power supply, a voltage adjustment power supply circuit, a power acquisition terminal main control circuit, a power acquisition data communication circuit, a storage circuit and a clock circuit. The output end of the power supply is connected to the input end of the voltage adjustment power supply circuit, the output end of the voltage adjustment power supply circuit is connected to the power acquisition terminal main control circuit, the power acquisition data communication circuit, the storage circuit and the clock circuit for power supply, the input end of the power acquisition terminal main control circuit is connected to the output end of the clock circuit, the output end of the power acquisition terminal main control circuit is connected to the input end of the storage circuit and the input end of the power acquisition data communication circuit, and the output end of the power acquisition data communication circuit is connected to the Beidou satellite communication antenna. In this embodiment, the main control circuit of the power collection terminal can remotely send the collected power data through the power collection data communication circuit and the Beidou satellite communication antenna, so as to realize power data collection in remote areas without signals. By utilizing the short message communication function of the Beidou satellite navigation system, there is no need to rely on the ground communication network. As long as it is within the coverage of the Beidou satellite signal, information can be sent and received. The positioning accuracy of the Beidou system can meet the requirements for determining the location of the power information collection terminal. At the same time, its communication link is relatively stable and reliable. For the power system, it can not only effectively collect power data, but its accurate location information also helps to quickly locate the fault point of the power equipment and improve the operation and maintenance efficiency. In addition, the data collection terminal has low cost, compact size and easy installation.

[0027] like Figure 2 As shown, the main control circuit of the power collection terminal is equipped with a main control chip U1. The model of the main control chip U1 is Xintang NUC980DK63YC. The main control chip U1 has 128 pins. Pins 9, 20, 60, 85, and 102 of the main control chip U1 are connected to the output of the voltage adjustment power supply circuit. Pins 97, 98, and 99 of the main control chip U1 are connected to the input of the power collection data communication circuit. Pins 74, 75, and 76 of the main control chip U1 are connected to the output of the clock circuit. Pins 52, 53, 54, 55, 56, 57, 58, and 59 of the main control chip U1 are connected to the input of the storage circuit. In this embodiment, the main control circuit of the power collection terminal is used to remotely transmit the collected power data through the power collection data communication circuit and the Beidou satellite communication antenna. The main control circuit of the power collection terminal is the main unit of the data collection terminal based on Beidou satellite communication. It is mainly responsible for the management and control of various terminal units for collecting power consumption information of Beidou short messages. The main control chip U1 adopts the Xintang NUC980DK63YC chip. The CPU adopts the ARM926EJ-S core with an execution speed of up to 300MHz.

[0028] like Figure 3 As shown, the voltage-regulating power supply circuit includes a voltage-stabilizing chip U5, a diode D2, and an inductor L2. The voltage-regulating chip U5 has six pins. Pin 5 of the voltage-regulating chip U5 is connected to the cathode of the diode D2, the anode of the diode D2 is connected to the output of the power supply, and pin 6 of the voltage-regulating chip U5 is connected to one end of the inductor L2. The other end of the inductor L2 is connected to the power acquisition data communication circuit, the storage circuit, the clock circuit, and pins 9, 20, 60, 85, and 102 of the main control chip U1. In this embodiment, the voltage-regulating power supply circuit is used to power the main control circuit of the power acquisition terminal, the power acquisition data communication circuit, the storage circuit, and the clock circuit.

[0029] like Figure 4 As shown, the power collection data communication circuit is provided with a data communication chip U8, a resistor R36, a resistor R38 and a resistor R42, wherein the model of the data communication chip U8 is RS485, and the data communication chip U8 is provided with 8 pins, the 8th pin of the data communication chip U8 is connected to the other end of the inductor L2, the 1st pin of the data communication chip U8 is connected to one end of the resistor R36, and the other end of the resistor R36 is connected to the 98th pin of the main control chip U1, the 2nd and 3rd pins of the data communication chip U8 are connected to one end of the resistor R38, and the other end of the resistor R38 is connected to the 97th pin of the main control chip U1, the 4th pin of the data communication chip U8 is connected to one end of the resistor R42, and the other end of the resistor R42 is connected to the 99th pin of the main control chip U1, and the 6th and 7th pins of the data communication chip U8 are connected to the Beidou satellite communication antenna. In this embodiment, the power collection data communication circuit is used to transmit power collection data sent by the power collection terminal's main control circuit via a Beidou satellite communication antenna. A remote data collection terminal is installed in an area with mobile signal and wirelessly connected to the power data collection master station via 4G / 5G signals. The remote data collection terminal is connected to the power data collection master station via a dedicated network. When the master station center sends information instructions to the remote data collection terminal via mobile network signals, the remote data collection terminal's main control circuit transmits the information to the near-end power collection terminal via the power collection data communication circuit, the Beidou satellite communication antenna, and the Beidou satellite. The Beidou short message information instructions received by the near-end power collection terminal are converted through a parsing protocol and sent to the near-end power data collection station. This method realizes the interconnection between the remote collection master station and the near-end power data collection station.

[0030] like Figure 5As shown, the storage circuit is equipped with a data storage chip U2. The model of the data storage chip U2 is NADA FLASH. The data storage chip U2 has 48 pins. Pins 12 and 37 of the data storage chip U2 are connected to the other end of the inductor L2. Pins 29, 30, 31, 32, 41, 42, 43, and 44 of the data storage chip U2 are respectively connected to pins 52, 53, 54, 55, 56, 57, 58, and 59 of the main control chip U1. In this embodiment, the data storage chip U2 uses a large-capacity, high-speed storage NADA FLASH with a capacity of up to 1Gbit (128M x 8bit). It is mainly used to store data acquisition terminal programs and store various data acquisition terminal readings.

[0031] like Figure 6 As shown, the clock circuit includes a timing chip U3 and a diode D1. The timing chip U3 has 14 pins. Pins 6 and 7 of the timing chip U3 are connected to the cathode of diode D1, and the anode of diode D1 is connected to the other end of inductor L2. Pins 2, 10, and 13 of the timing chip U3 are connected to pins 74, 76, and 75 of the main control chip U1, respectively. In this embodiment, the data acquisition terminal includes a built-in, high-precision, independent timing chip U3 and an independent battery to ensure accurate timing even in power outages. The system also synchronizes the timing chip U3 every hour to ensure that timing errors remain within an acceptable range.

[0032] As can be seen from the above, the utility model provides a data acquisition terminal control circuit based on Beidou satellite communication. By arranging a power supply, a voltage adjustment power supply circuit, a power acquisition terminal main control circuit, a power acquisition data communication circuit, a storage circuit and a clock circuit that cooperate with each other in the data acquisition terminal control circuit based on Beidou satellite communication, the power acquisition terminal main control circuit can remotely send the collected power data through the power acquisition data communication circuit and the Beidou satellite communication antenna, thereby realizing power data acquisition in remote areas without signals. By utilizing the short message communication function of the Beidou satellite navigation system, there is no need to rely on the ground communication network. As long as it is within the coverage range of the Beidou satellite signal, information can be sent and received. The positioning accuracy of the Beidou system can meet the requirements for determining the location of the power consumption information collection terminal. At the same time, its communication link is relatively stable and reliable. For the power system, not only can power data be effectively collected, but its accurate location information also helps to quickly locate the fault point of the power equipment, thereby improving operation and maintenance efficiency. In addition, the data acquisition terminal has low cost, compact size and easy installation, solving the problems of difficulty in power data collection in remote areas without signals and high GPRS transmission cost in the prior art.

[0033] The specific implementation methods described above are preferred implementation methods of the present invention, and are not intended to limit the specific implementation scope of the present invention. The scope of the present invention includes but is not limited to the specific implementation methods. All equivalent changes made in accordance with the present invention are within the protection scope of the present invention.

Claims

1. A data acquisition terminal control circuit based on Beidou satellite communication, characterized in that: It includes a power supply, a voltage adjustment power supply circuit, a power collection terminal main control circuit, a power collection data communication circuit, a storage circuit and a clock circuit. The output end of the power supply is connected to the input end of the voltage adjustment power supply circuit, the output end of the voltage adjustment power supply circuit is connected to the power collection terminal main control circuit, the power collection data communication circuit, the storage circuit and the clock circuit for power supply, the input end of the power collection terminal main control circuit is connected to the output end of the clock circuit, the output end of the power collection terminal main control circuit is connected to the input end of the storage circuit and the input end of the power collection data communication circuit, the output end of the power collection data communication circuit is connected to the Beidou satellite communication antenna, and the power collection terminal main control circuit can remotely send the collected power data through the power collection data communication circuit and the Beidou satellite communication antenna.

2. The data acquisition terminal control circuit based on Beidou satellite communication according to claim 1, characterized in that: A main control chip U1 is provided in the main control circuit of the power collection terminal. The main control chip U1 has 128 pins. Pins 9, 20, 60, 85, and 102 of the main control chip U1 are connected to the output end of the voltage adjustment power supply circuit, pins 97, 98, and 99 of the main control chip U1 are connected to the input end of the power collection data communication circuit, pins 74, 75, and 76 of the main control chip U1 are connected to the output end of the clock circuit, and pins 52, 53, 54, 55, 56, 57, 58, and 59 of the main control chip U1 are connected to the input end of the storage circuit.

3. The data acquisition terminal control circuit based on Beidou satellite communication according to claim 2, characterized in that: The voltage regulating power supply circuit is provided with a voltage stabilizing chip U5, a diode D2 and an inductor L2, wherein the voltage stabilizing chip U5 is provided with 6 pins, the 5th pin of the voltage stabilizing chip U5 is connected to the cathode of the diode D2, the anode of the diode D2 is connected to the output end of the power supply, the 6th pin of the voltage stabilizing chip U5 is connected to one end of the inductor L2, and the other end of the inductor L2 is connected to the 9th, 20th, 60th, 85th and 102th pins of the power collection data communication circuit, the storage circuit, the clock circuit and the main control chip U1 for power supply.

4. The data acquisition terminal control circuit based on Beidou satellite communication according to claim 3, characterized in that: The power collection data communication circuit is provided with a data communication chip U8, a resistor R36, a resistor R38 and a resistor R42, wherein the data communication chip U8 is provided with 8 pins, the 8th pin of the data communication chip U8 is connected to the other end of the inductor L2, the 1st pin of the data communication chip U8 is connected to one end of the resistor R36, the other end of the resistor R36 is connected to the 98th pin of the main control chip U1, the 2nd and 3rd pins of the data communication chip U8 are connected to one end of the resistor R38, the other end of the resistor R38 is connected to the 97th pin of the main control chip U1, the 4th pin of the data communication chip U8 is connected to one end of the resistor R42, the other end of the resistor R42 is connected to the 99th pin of the main control chip U1, and the 6th and 7th pins of the data communication chip U8 are connected to the Beidou satellite communication antenna.

5. The data acquisition terminal control circuit based on Beidou satellite communication according to claim 4 is characterized in that: A data storage chip U2 is provided in the storage circuit, and the data storage chip U2 is provided with 48 pins. Pins 12 and 37 of the data storage chip U2 are connected to the other end of the inductor L2, and pins 29, 30, 31, 32, 41, 42, 43, and 44 of the data storage chip U2 are respectively connected to pins 52, 53, 54, 55, 56, 57, 58, and 59 of the main control chip U1.

6. The data acquisition terminal control circuit based on Beidou satellite communication according to claim 5, characterized in that: The clock circuit is provided with a timing chip U3 and a diode D1. The timing chip U3 is provided with 14 pins. Pins 6 and 7 of the timing chip U3 are connected to the cathode of the diode D1, the anode of the diode D1 is connected to the other end of the inductor L2, and pins 2, 10, and 13 of the timing chip U3 are respectively connected to pins 74, 76, and 75 of the main control chip U1.

7. The data acquisition terminal control circuit based on Beidou satellite communication according to claim 6, characterized in that: The model of the main control chip U1 is Xintang NUC980DK63YC.

8. The data acquisition terminal control circuit based on Beidou satellite communication according to claim 7, characterized in that: The model of the data communication chip U8 is RS485, and the model of the data storage chip U2 is NADA FLASH.

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