A centralized control intelligent prepayment system and its control method
A pre-paid, centralized control technology, applied in signal transmission systems, reducing energy consumption, coin-operated equipment for distributing discrete items, etc., can solve problems such as complex on-site installation, time and effort taken up by engineers, and inconsistency of the system as a whole. Achieve the effect of avoiding closing and opening errors, reducing workload and avoiding human errors
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no. 1 example
[0045] like figure 1 As shown in the figure, the present embodiment discloses a centralized control type intelligent prepayment system, the prepayment system includes at least two branch switches 1, an intelligent monitoring unit 2, electric energy meters 3, TTU (TTU ( distribution transformer monitoring terminal) 5 and concentrator 6, the branch switch 1 and the electric energy meter 3 are electrically connected through power lines, the electric energy meter 3, TTU (distribution transformer monitoring terminal) 5 and concentrator 6 The signals are transmitted wirelessly with the intelligent monitoring unit 2 respectively. The system can realize functions such as remote prepayment, charge-controlled closing and opening, line loss analysis, and electricity theft protection.
[0046] For details, please refer to figure 1 and figure 2 As shown, the branch switch 1 is set at the outlet end of the electric energy meter 3 and is electrically connected to the electric energy mete...
no. 2 example
[0073] like Figure 9 As shown, it is a schematic diagram of the centralized control type intelligent prepaid system in the second embodiment. In this embodiment, the electric energy meter 3 no longer establishes a wireless communication connection with the first communication unit 21, and the communication of the electric energy meter 3 is changed to a broadband carrier (HPLC) mode. The branch switch 1 or the electric energy meter 3 establishes power carrier communication with the station area wideband carrier (HPLC) communication host 8 or TTU5 respectively. The station area broadband carrier (HPLC) communication host 8 reads the charge control instruction of the electric energy meter 3, and transmits the charge control instruction to the first communication unit 21, and then to the first analysis and processing unit 22, and the first analysis and processing unit 22 controls The branch switch 1 executes the corresponding charge control operation.
[0074] Different from th...
no. 3 example
[0077] like Figure 10 As shown, it is a schematic diagram of the centralized control type intelligent prepaid system in the third embodiment. In this embodiment, the electric energy meter 3 adopts the SPI bus mode for communication connection. SPI is a high-speed, full-duplex, synchronous communication bus, and a synchronous serial interface technology. SPI works in a master-slave mode. This mode usually has a master device and one or more slave devices. It requires at least four wires. When unidirectional transmission, three wires can also work.
[0078] Specifically, the electric energy meter 3 is connected with the first analysis and processing unit 22 in the SPI bus mode, and the electric energy meter 3 sends information such as cost control instructions to the first analysis and processing unit 22 , and the first analysis and processing unit 22 controls the branch switch 1 to combine and divide brake operation. At the same time, the first analysis and processing unit 2...
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