CN213275737U - Metering and monitoring system for new energy automobile charging facility - Google Patents
Metering and monitoring system for new energy automobile charging facility Download PDFInfo
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- CN213275737U CN213275737U CN202021882755.6U CN202021882755U CN213275737U CN 213275737 U CN213275737 U CN 213275737U CN 202021882755 U CN202021882755 U CN 202021882755U CN 213275737 U CN213275737 U CN 213275737U
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Abstract
The utility model provides a new energy automobile facility measurement supervisory systems that charges, this system include measurement supervisory module, remote service platform and communication module, measurement supervisory module integration is in the facility of charging for gather the real-time operating data of the facility of charging, remote service platform acquires the operating data through communication module and carries out analysis processes, and save effective operating data, the user carries out data query through terminal equipment connection remote service platform. The utility model discloses an integrated measurement supervision module in the facility that charges gathers in real time facility operating data that charges, found remote service platform and carry out analysis and storage to operating data, combine thing networking technology and measurement technique, realize measurement and supervision to the facility operating data that charges, the measurement data is disclosed to be traceed back, has improved the reliability of the facility operation that charges, upgrades traditional site point calibration mode into the whole measurement calibration mode of equipment daily work, has improved work efficiency greatly.
Description
Technical Field
The utility model relates to a thing networking and measurement technical field, concretely relates to new energy automobile facility measurement supervisory systems that charges.
Background
With the rapid growth of automobile reserves, the problems of energy safety and environmental pollution are increasingly prominent, the rapid development of new energy automobiles becomes a necessary choice for the current automobile industry development, in recent years, under the support of matching policies of the national government and local governments, the industrial and large-scale leap development of new energy automobiles in China is realized, the new energy automobiles are a strategic emerging industry of the country, and the sound and perfect charging facilities are an important foundation for the development of the new energy automobiles and are necessary guarantee for the large-scale popularization and application of the new energy automobiles.
The large-scale development and application of new energy vehicles in the future can promote the large-area installation and configuration of charging facilities, a large number of trade settlement related to the charging of new energy vehicles used by residents and public service units will appear in the future, and whether the metering of the charging facilities is accurate or not will become a hot civil problem concerned and concerned by new energy vehicle consumers. How can guarantee the accuracy and reliability of the measurement of the ac and dc power and the fairness and justness of the charging of the ac and dc charging facility as an independent device during the charging process? Verification and calibration are means for tracing the source of the quantity value and are important guarantees for the accuracy and reliability of the detection result. Therefore, it is important to strengthen the measurement and supervision working days of the new energy automobile charging facilities.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a cover new energy automobile facility measurement supervision platform that charges upgrades traditional site point calibration mode into the whole measurement calibration mode of equipment daily work, improves work efficiency.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a new energy automobile facility measurement supervisory systems that charges includes:
the metering and monitoring module is integrated in the charging facility, comprises a direct current type and an alternating current type and is used for acquiring real-time operation data of the charging facility, and comprises an MCU (microprogrammed control unit), a data storage unit connected with the MCU, a metering unit used for acquiring the operation data of the charging facility in real time and a communication unit, wherein the metering unit is provided with a current acquisition circuit and a voltage acquisition circuit and comprises a 4G communication unit and a 485 asynchronous communication unit;
the remote service platform is used for analyzing and processing data, the remote service platform is provided with a database used for storing effective operation data of the charging facility, and a user is connected with the remote service platform through terminal equipment to inquire the data;
and the communication module is connected with the metering supervision module and the remote service platform through a network and is used for realizing data interaction between the metering supervision module and the remote service platform.
Furthermore, a metering supervision module of the direct current supervision module adopts a chip with a model number of CS5480, the voltage acquisition circuit comprises resistors R1, R2, R3 and a capacitor C1, one end of the resistor R1 is connected with a VL pin of the CS5840 chip, the other end of the resistor R1 is connected with one end of a resistor R2, one end of the resistor R3 is connected with a GND pin of the CS5840 chip and is grounded, the other end of the resistor R3 is connected with one end of a capacitor C1, and the other end of the capacitor C1 is connected with the middle positions of the resistors R1 and R2;
the current acquisition circuit comprises resistors R4, R5, R6, capacitors C2 and C3, one end of a capacitor C1 is connected with one ends of an I + pin and a resistor R4 of the CS5840 chip, the other end of the capacitor C1 is connected with one end of a capacitor C3, the other end of the capacitor C3 is connected with a GND pin of the CS5840 chip and one end of a resistor R3, one end of the resistor R5 is connected with the other end of the resistor R3, the other end of the resistor R5 is connected with the middle positions of the capacitors C2 and the resistor C4, and the middle positions of the capacitors C1 and C2 are grounded.
Furthermore, a metering supervision module of the alternating current supervision module adopts a chip with the model number of RN8209, the voltage acquisition circuit comprises a first capacitor circuit and a first resistor circuit, wherein two ends of the first capacitor circuit are respectively connected with a V1P pin and a V1N pin of the RN8209 chip, the first resistor circuit is connected with the first capacitor circuit in parallel, the first capacitor circuit comprises capacitors C1 and C2 which are connected in series, the first resistor circuit comprises R1, R2, R3 and R4 which are connected in series, the middle positions of the capacitors C1 and C2 are connected with the middle positions of the resistors R2 and R3 through a first branch line, the first branch line is grounded, and the other ends of the resistors R2 and R3 are connected with voltage input signals;
the current acquisition line comprises a second capacitor circuit and a second resistor circuit, wherein two ends of the second capacitor circuit are respectively connected with a V3P pin and a V3N pin of an RN8209 chip, the second resistor circuit is connected with the second capacitor circuit in parallel, the second capacitor circuit comprises C3 and C4 which are connected in series, the resistor circuit comprises R5, R6, R7 and R8 which are connected in series, the middle positions of C3 and C4 and the middle positions of R6 and R7 are connected through a second branch line, the second branch line is grounded, the middle positions of R5, R6, R7 and R8 are respectively connected with a 1 pin and a 2 pin of a Hall current sensor PT2011, the 3 pin of the Hall current sensor 2011 is connected with resistors R10 and R11 which are connected in series, and the 4 pin of the Hall current sensor PT2011 is connected with resistors R12 and R13 which are connected in series.
Further, the operational data includes current, voltage, electrical energy, and power output by the charging facility.
Preferably, a plurality of charging facilities in the same area are connected through a signal concentrator, and then the signal concentrator is connected with the communication module through a network, and the operation data of the plurality of charging facilities are collected at the same time.
According to the above technical scheme, the utility model discloses an integrated measurement supervisory module in the facility that charges gathers in real time the facility operating data that charges, found remote service platform and carry out analysis and storage to operating data, combine thing networking technology and measurement technique, realize measurement and supervision to the facility operating data that charges, the measurement data is disclosed to be traceable, has improved the reliability of the facility operation that charges, upgrade traditional site point calibration mode into the whole measurement calibration mode of equipment daily work, has improved work efficiency greatly.
Drawings
Fig. 1 is a schematic diagram of the system structure of the present invention;
FIG. 2 is a schematic structural diagram of the metering supervision module of the present invention;
FIG. 3 is a schematic circuit diagram of the metering unit of the DC metering supervision module of the present invention;
fig. 4 is a schematic circuit diagram of the metering unit of the ac metering supervision module of the present invention.
Detailed Description
A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
The new energy automobile charging facility metering and monitoring system shown in fig. 1 comprises a metering and monitoring module, a remote service platform and a communication module, wherein the remote service platform is used for analyzing and processing data, the metering and monitoring module is integrated in a charging facility and comprises a direct current type and an alternating current type and is used for collecting real-time operation data of the direct current or alternating current type charging facility, the metering and monitoring module comprises an MCU unit, a data storage unit connected with the MCU unit, a metering unit and a communication unit, the metering unit is used for collecting the operation data of the charging facility in real time, the metering unit is provided with a current collecting circuit and a voltage collecting circuit, and the communication unit comprises a 4G communication unit and a 485 asynchronous communication unit; the remote service platform is provided with a database for storing effective operation data of the charging facility, and a user can connect the remote service platform through terminal equipment to perform data query; the communication module is connected with the metering supervision module and the remote service platform through a network and is used for realizing data interaction between the metering supervision module and the remote service platform.
As shown in fig. 2, a voltage acquisition line of the metering unit according to the preferred embodiment acquires a voltage difference between a DC + line and a DC-line of an ac/DC bus of a charging facility as a standard voltage value, and a current acquisition line externally connects a hall current sensor to the bus, and accesses the sensor to the bus, so that an acquired voltage-to-current value is used as a current standard value, thereby providing a high-precision acquisition function for real-time data such as voltage, current, and power, and also providing an accumulated metering electric energy data function; the 4G communication unit provides a data access function for an internet platform and an internet of things platform, and the 485 asynchronous communication unit provides local data end access of equipment, completes metering calibration, data communication and function expansion.
As shown in fig. 3, a metering and monitoring module of the dc monitoring module adopts a chip with a model CS5480, the voltage acquisition circuit includes resistors R1, R2, R3 and a capacitor C1, one end of the resistor R1 is connected to the VL pin of the CS5840 chip, the other end is connected to one end of a resistor R2, one end of the resistor R3 is connected to the GND pin of the CS5840 chip and grounded, the other end is connected to one end of a capacitor C1, and the other end of the capacitor C1 is connected to the middle position of the resistors R1 and R2;
the current acquisition circuit comprises resistors R4, R5, R6, capacitors C2 and C3, one end of a capacitor C1 is connected with one ends of an I + pin and a resistor R4 of the CS5840 chip, the other end of the capacitor C1 is connected with one end of a capacitor C3, the other end of the capacitor C3 is connected with a GND pin of the CS5840 chip and one end of a resistor R3, one end of the resistor R5 is connected with the other end of the resistor R3, the other end of the resistor R5 is connected with the middle positions of the capacitors C2 and the resistor C4, and the middle positions of the capacitors C1 and C2 are grounded.
As shown in fig. 4, a metering supervision module of the ac supervision module adopts a chip of a model RN8209, the voltage acquisition circuit includes a first capacitor circuit whose two ends are respectively connected to a V1P pin and a V1N pin of the RN8209 chip, and a first resistor circuit connected in parallel with the first capacitor circuit, the first capacitor circuit includes capacitors C1 and C2 connected in series, the first resistor circuit includes capacitors R1, R2, R3 and R4 connected in series, the middle positions of the capacitors C1 and C2 are connected to the middle positions of the resistors R2 and R3 through a first branch line, the first branch line is grounded, and the other ends of the resistors R2 and R3 are connected to a voltage input signal;
the current acquisition line comprises a second capacitor circuit and a second resistor circuit, wherein two ends of the second capacitor circuit are respectively connected with a V3P pin and a V3N pin of an RN8209 chip, the second resistor circuit is connected with the second capacitor circuit in parallel, the second capacitor circuit comprises C3 and C4 which are connected in series, the resistor circuit comprises R5, R6, R7 and R8 which are connected in series, the middle positions of C3 and C4 and the middle positions of R6 and R7 are connected through a second branch line, the second branch line is grounded, the middle positions of R5, R6, R7 and R8 are respectively connected with a 1 pin and a 2 pin of a Hall current sensor PT2011, the 3 pin of the Hall current sensor 2011 is connected with resistors R10 and R11 which are connected in series, and the 4 pin of the Hall current sensor PT2011 is connected with resistors R12 and R13 which are connected in series.
The operation data of the preferred embodiment includes current, voltage, electric energy and power output by the charging facility, wherein the electric energy and power are calculated from the corresponding voltage and current.
In order to ensure the accuracy and reliability of the measurement of the alternating current and direct current electric energy and the fairness and justice of the charging in the charging process of the alternating current and direct current charging facility, the remote service platform in the preferred embodiment is provided with a database for storing the effective operation data of the charging facility, and the terminal equipment of a user can be connected with the database through a network to inquire at any time.
In specific use, a plurality of charging facilities in the same region can be connected through the signal concentrator, and then the signal concentrator is connected with the communication module through a network, so that real-time operation data of the plurality of charging facilities can be acquired simultaneously, and the working efficiency is greatly improved.
The present invention is specifically illustrated below by a specific embodiment: firstly, integrating a metering monitoring module in a charging facility, respectively acquiring real-time current and voltage operation data of the charging facility through current and voltage acquisition lines, and calculating corresponding electric energy and power data; obtaining the real-time running data through a communication module, putting the real-time running data into a memory register, and performing operation and packet processing on messages; the remote service platform reads the processed operation data for analysis, and judges whether the operation data exceeds or is lower than 10% of a rated value; if the operation data is not more than or not less than 10% of the rated numerical value, the operation data is valid data, and the operation data is stored in a database; if the operation data exceeds or is lower than 10% of the rated value, the operation data is abnormal data, the remote service platform marks the charging facility corresponding to the operation data and issues an operation stopping instruction, and the communication module converts the instruction into a command message and transmits the command message to the specified charging facility for execution.
The remote service platform of the preferred embodiment uses the TCP interface, and can monitor the designated interface in real time, obtain the data of the communication module or the query instruction of the terminal device, and process the data; the remote service platform processes data or instructions by the following method: firstly, unpacking the received data according to the rules of a data communication protocol to obtain a corresponding processing method; then starting a thread with a corresponding processing method, and transmitting the unpacked running data or instructions to the thread for processing; and then the thread processes to obtain a corresponding result, packages the result with a message, transmits the packaged message to a remote service platform, and returns the message to the source target by the remote service platform.
In the prior art, because the charging facilities of each manufacturer and even the charging facilities of different batches of the same manufacturer are various for third-party communication modes, such as communication interfaces, communication modes, communication messages and the like, the popularization of the charging facilities is seriously restricted, and meanwhile, barriers are set for related detection; meanwhile, due to various reasons, the interface types, data interaction modes and data formats of the service platforms matched with the charging facilities of the operators are different, and the data interaction between the metering supervision platform and the service platforms of the operators is difficult to realize. Therefore, the utility model needs to unify the communication standards of the charging facilities and the third party in the specific use, pave the road for the online metering and supervision of the charging facilities and promote the communication standardization of the charging facilities; and meanwhile, an interconnection and intercommunication protocol between the charging facility metering supervision platform and each operator service platform is formulated, so that the relevant data of each operator service platform can be effectively acquired, and online supervision is realized.
The above-mentioned embodiments are only to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.
Claims (5)
1. The utility model provides a new energy automobile facility measurement supervisory systems that charges which characterized in that includes:
the metering and monitoring module is integrated in the charging facility and comprises a direct current type and an alternating current type and is used for acquiring real-time operation data of the charging facility, the metering and monitoring module comprises an MCU (microprogrammed control unit) unit, a data storage unit connected with the MCU unit, a metering unit and a communication unit, the metering unit is used for acquiring the operation data of the charging facility in real time, the metering unit is provided with a current acquisition circuit and a voltage acquisition circuit, and the communication unit comprises a 4G communication unit and a 485 asynchronous communication unit;
the remote service platform is provided with a database for storing effective operation data of the charging facility and is in communication connection with the terminal equipment of the user;
and the communication module is connected with the metering supervision module and the remote service platform through a network.
2. The metering and monitoring system of the new energy automobile charging facility according to claim 1, wherein a metering and monitoring module of the direct current monitoring module adopts a chip with a model number of CS5480, the voltage acquisition line comprises resistors R1, R2, R3 and a capacitor C1, one end of the resistor R1 is connected with a VL pin of the CS5840 chip, the other end of the resistor R2 is connected with one end of the resistor R3, one end of the resistor R3 is connected with a GND pin of the CS5840 chip and is grounded, the other end of the resistor R3 is connected with one end of the capacitor C1, and the other end of the capacitor C1 is connected with the middle position of the resistors R1 and R2;
the current acquisition circuit comprises resistors R4, R5, R6, capacitors C2 and C3, one end of a capacitor C1 is connected with one ends of an I + pin and a resistor R4 of the CS5840 chip, the other end of the capacitor C1 is connected with one end of a capacitor C3, the other end of the capacitor C3 is connected with a GND pin of the CS5840 chip and one end of a resistor R3, one end of the resistor R5 is connected with the other end of the resistor R3, the other end of the resistor R5 is connected with the middle positions of the capacitors C2 and the resistor C4, and the middle positions of the capacitors C1 and C2 are grounded.
3. The metering and monitoring system of the new energy automobile charging facility as claimed in claim 1, wherein a metering and monitoring module of the alternating current monitoring module adopts a chip with the model number RN8209, the voltage acquisition circuit comprises a first capacitor circuit with two ends respectively connected with a V1P pin and a V1N pin of the RN8209 chip, and a first resistor circuit connected in parallel with the first capacitor circuit, the first capacitor circuit comprises capacitors C1 and C2 which are connected in series, the first resistor circuit comprises R1, R2, R3 and R4 which are connected in series, the middle positions of the capacitors C1 and C2 and the middle positions of the resistors R2 and R3 are connected through a first branch line, the first branch line is grounded, and the other ends of the resistors R2 and R3 are connected with a voltage input signal;
the current acquisition line comprises a second capacitor circuit and a second resistor circuit, wherein two ends of the second capacitor circuit are respectively connected with a V3P pin and a V3N pin of an RN8209 chip, the second resistor circuit is connected with the second capacitor circuit in parallel, the second capacitor circuit comprises C3 and C4 which are connected in series, the resistor circuit comprises R5, R6, R7 and R8 which are connected in series, the middle positions of C3 and C4 and the middle positions of R6 and R7 are connected through a second branch line, the second branch line is grounded, the middle positions of R5, R6, R7 and R8 are respectively connected with a 1 pin and a 2 pin of a Hall current sensor PT2011, the 3 pin of the Hall current sensor 2011 is connected with resistors R10 and R11 which are connected in series, and the 4 pin of the Hall current sensor PT2011 is connected with resistors R12 and R13 which are connected in series.
4. The system according to claim 1, wherein the operation data includes current, voltage, electric energy and power output by the charging facility.
5. The system according to claim 1, wherein a plurality of charging facilities in the same area are connected through a signal concentrator, the signal concentrator is connected with the communication module through a network, and operation data of the plurality of charging facilities are collected.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111913029A (en) * | 2020-08-31 | 2020-11-10 | 安徽省计量科学研究院 | Metering supervision system and method for new energy automobile charging facility |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111913029A (en) * | 2020-08-31 | 2020-11-10 | 安徽省计量科学研究院 | Metering supervision system and method for new energy automobile charging facility |
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