A meter reading system and method based on multi-terminal DC integrated voltage regulating device

Abstract

The present application relates to the technical field of electric meter reading, and discloses an electric meter reading system and method based on a multi-terminal direct current comprehensive voltage regulating device, comprising the following steps: a first master station issues a meter reading file to a concentrator; a second master station issues a configuration file instruction to a rectifier device and an inverter device configuration file; the inverter device is networked with the electric meter; a collector sends a meter searching instruction to the rectifier device; the rectifier device replies to the collector; the inverter device reads the meter; the rectifier device sends a data acquisition instruction to the inverter device; the inverter device transmits data to the rectifier device; the concentrator sends a data acquisition instruction to the collector; the collector transmits the data acquisition instruction to the rectifier device; and the rectifier device transmits data to the concentrator via the collector. The present application uses the rectifier device and the inverter device to realize meter reading, solves the problem that when the multi-terminal direct current comprehensive voltage regulating device is used in series in a line, cutting off the original carrier circuit causes the concentrator to be unable to communicate with the electric meter, and governs voltage without affecting the original meter reading business.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric meter reading, and in particular to an electric meter reading system and method based on a multi-terminal DC comprehensive voltage regulating device. BACKGROUND

[0002] The multi-terminal DC comprehensive voltage regulating device (MVR) is a distributed low-voltage end treatment device for low-voltage distribution networks developed by Qingdao Dingsinxin Communication Co., Ltd. The device makes full use of existing distribution lines and does not need to lay new cables. Through AC-DC-AC conversion technology, the length of single-phase AC distribution lines can be significantly shortened, the line voltage drop can be reduced, and the end voltage quality can be improved. After the low-voltage AC distribution is boosted to DC distribution, the line impedance is reduced, the current flowing through the line is reduced, and the line loss can be significantly reduced. The device is easy to install and can make full use of existing distribution lines without the need to lay new cables, thereby saving the comprehensive transformation cost.

[0003] When the multi-terminal DC comprehensive voltage regulating device is connected in series in the line, the original carrier communication circuit will be cut off, which causes the concentrator to be unable to communicate with the electric meter, thereby affecting the original meter reading business in the link. At present, there is no mature solution to this problem in the industry. SUMMARY

[0004] The present application discloses an electric meter reading system and method based on a multi-terminal DC comprehensive voltage regulating device. The rectifier device and the inverter device are used to realize electric meter reading, thereby solving the problem that when the multi-terminal DC comprehensive voltage regulating device is connected in series in the line, the original carrier communication circuit will be cut off, which causes the concentrator to be unable to communicate with the electric meter.

[0005] The purpose of the present application can be achieved by the following technical solutions:

[0006] An electric meter reading system based on a multi-terminal DC comprehensive voltage regulating device, comprising a first master station, a concentrator, a collector, a multi-terminal DC comprehensive voltage regulating device, and a second master station.

[0007] The connection relationship is as follows: the first master station is in communication connection with the concentrator; the concentrator is in communication connection with the collector; the collector is in communication connection with the input side of the rectifier device of the multi-terminal DC comprehensive voltage regulating device; the output side of the inverter device of the multi-terminal DC comprehensive voltage regulating device is in communication connection with the electric meter; and the second master station is in communication connection with the rectifier device and the inverter device of the multi-terminal DC comprehensive voltage regulating device.

[0008] Preferably, the rectifier device and the inverter device of the multi-terminal DC comprehensive voltage regulating device realize 4G communication with the second master station through a wireless communication module.

[0009] An electric meter reading method based on a multi-terminal DC comprehensive voltage regulating device, comprising the following steps:

[0010] S1, the first master station sends meter file to concentrator;

[0011] S2, the second master station sends configuration meter file instruction to rectifier device and inverter device of multi-terminal DC comprehensive voltage regulating device;

[0012] S3, the rectifier device and inverter device configure meter file;

[0013] S4, the inverter device completes carrier networking with electric meter according to meter file;

[0014] S5, the collector sends search meter instruction to rectifier device;

[0015] S6, the rectifier device replies search meter instruction of the collector according to self meter file, that is, sends electric meter communication address to the collector;

[0016] S7, the inverter device reads electric meter data and stores in local;

[0017] S8, in carrier communication mode, the rectifier device sends meter data acquisition instruction to inverter device according to meter file;

[0018] S9, in carrier communication mode, the inverter device transmits local stored meter data to rectifier device and stores in local of rectifier device;

[0019] S10, the concentrator sends meter data acquisition instruction to collector according to meter file;

[0020] S11, the collector transmits meter data acquisition instruction from the concentrator to rectifier device;

[0021] S12, the rectifier device uploads local stored meter data to collector;

[0022] S13, the collector transmits meter data from rectifier device to concentrator.

[0023] Preferably, the meter file comprises electric meter information at least containing electric meter communication address, meter data item and meter rule.

[0024] Preferably, the second master station can read local stored meter data of rectifier device or inverter device at any time in 4G communication mode.

[0025] The application has the beneficial technical effect that: the rectifier device and inverter device are used to realize electric meter reading, solve the problem that when multi-terminal DC comprehensive voltage regulating device is used in series in line, the original carrier communication circuit is cut off, the concentrator cannot keep communication with electric meter, and thus voltage regulation is realized without affecting original meter reading business in link. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1A meter reading system connection diagram in the embodiment of the present application. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0028] Embodiment:

[0029] As shown in the figure, a meter reading system based on a multi-terminal DC comprehensive voltage regulating device includes a first master station, a concentrator, a collector, a multi-terminal DC comprehensive voltage regulating device, and a second master station. Figure 1

[0030] The connection relationship is that the first master station is in communication connection with the concentrator; the concentrator is in communication connection with the collector; the collector is in communication connection with the input side of the rectifier device of the multi-terminal DC comprehensive voltage regulating device; the output side of the inverter device of the multi-terminal DC comprehensive voltage regulating device is in communication connection with the meter; and the second master station is in communication connection with the rectifier device and the inverter device of the multi-terminal DC comprehensive voltage regulating device, specifically, the rectifier device and the inverter device of the multi-terminal DC comprehensive voltage regulating device realize 4G communication with the second master station through a wireless communication module.

[0031] The pairing between the switch of the system meter reading function, the rectifier device and the inverter device can be realized by issuing an instruction by the second master station.

[0032] A meter reading method based on a multi-terminal DC comprehensive voltage regulating device includes the following steps:

[0033] S1, the first master station issues a meter reading file to the concentrator; the meter reading file includes meter information, meter reading data items, and meter reading rules.

[0034] The meter information specifically includes a meter communication address, a communication protocol type, a communication password, and a rate number. The communication protocol type is DLT645.

[0035] The meter reading data items specifically include a load curve, daily frozen data items, and monthly frozen data items.

[0036] The meter reading rules specifically include meter grouping and reading specific data items for specific meters.

[0037] S2, the second master station issues a configuration meter reading file instruction to the rectifier device and the inverter device of the multi-terminal DC comprehensive voltage regulating device.

[0038] S3, the rectifier device and the inverter device configure the meter reading file.

[0039] S4, through the output carrier module of the inverter device, the inverter device completes carrier networking with meters 1-n according to the meter reading file.​

[0040] Output carrier module is also called load end routing module.

[0041] S5, the collector sends a search table instruction to the rectifier device.

[0042] S6, the rectifier device replies to the search table instruction of the collector according to its own meter reading file, that is, sends the meter communication address to the collector.

[0043] S7, the inverter device reads the meter data and stores it locally.

[0044] S8, in a carrier communication mode, the rectifier device sends a meter reading data acquisition instruction to the inverter device according to the meter reading file.

[0045] S9, in a carrier communication mode, the inverter device transmits the locally stored meter reading data to the rectifier device and stores it locally.

[0046] S10, the concentrator sends a meter reading data acquisition instruction to the collector according to the meter reading file.

[0047] S11, the collector transmits the meter reading data acquisition instruction from the concentrator to the rectifier device.

[0048] S12, the rectifier device uploads the locally stored meter reading data to the collector.

[0049] S13, the collector transmits the meter reading data from the rectifier device to the concentrator.

[0050] The second master station can read the locally stored meter reading data of the rectifier device or the inverter device at any time in a 4G communication mode.

[0051] When the carrier communication between the rectifier device and the inverter device in S8 and S9 is abnormal, they can transmit carrier communication messages through the second master station to ensure the normal operation of the meter reading function.

[0052] The above embodiments are descriptions of specific implementations of the present application, not limitations thereof. Those skilled in the art can make various transformations and changes without departing from the spirit and scope of the present application to obtain corresponding equivalent technical solutions, therefore all equivalent technical solutions shall fall within the patent protection scope of the present application.

Claims

1. A meter reading method based on a multi-terminal DC integrated voltage regulating device, characterized in that, Includes the following steps: S1, the first main station sends the meter reading data to the concentrator; S2, the second main station sends the instruction to configure meter reading files to the rectifier and inverter of the multi-terminal DC integrated voltage regulation device; S3, Meter reading records for rectifier and inverter devices; S4, the inverter completes the carrier network with the electricity meter according to the meter reading file; S5, the data collector sends a table search command to the rectifier; S6, the rectifier responds to the collector's meter search command according to its own meter reading records, that is, sends the meter communication address to the collector; S7, the inverter reads and stores the electricity meter data locally; S8, using carrier communication, the rectifier sends a meter reading data acquisition instruction to the inverter based on the meter reading file; S9, using carrier communication, the inverter transmits the locally stored meter reading data to the rectifier and stores it locally in the rectifier; S10, the concentrator sends a meter reading data acquisition instruction to the collector according to the meter reading file; S11, the collector transmits the meter reading data acquisition command from the concentrator to the rectifier; S12, the rectifier uploads the locally stored meter reading data to the collector; S13, the collector transmits the meter reading data from the rectifier to the concentrator.

2. The meter reading method based on a multi-terminal DC integrated voltage regulating device according to claim 1, characterized in that, The meter reading file includes at least meter information containing the meter's communication address, meter reading data items, and meter reading rules.

3. The meter reading method based on a multi-terminal DC integrated voltage regulating device according to claim 1, characterized in that, The second master station can read the meter reading data stored locally in the rectifier or inverter at any time via 4G communication.

4. A meter reading system based on a multi-terminal DC integrated voltage regulating device, characterized in that, The meter reading method based on the multi-terminal DC integrated voltage regulating device according to any one of claims 1 to 3 further includes a first master station, a concentrator, a data collector, a multi-terminal DC integrated voltage regulating device, and a second master station. The connection relationships are as follows: the first master station is connected to the concentrator; the concentrator is connected to the collector; the collector is connected to the input side of the rectifier of the multi-terminal DC integrated voltage regulator; the output side of the inverter of the multi-terminal DC integrated voltage regulator is connected to the meter; the second master station is connected to the rectifier and inverter of the multi-terminal DC integrated voltage regulator respectively.

5. A meter reading system based on a multi-terminal DC integrated voltage regulating device according to claim 4, characterized in that, The rectifier and inverter of the multi-terminal DC integrated voltage regulation device achieve 4G communication with the second master station through a wireless communication module.

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