Centralized control type intelligent prepayment system
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 effects of reducing workload, avoiding closing and opening errors, and avoiding human errors
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no. 1 example
[0044] Such as figure 1 As shown, this embodiment discloses a centralized control type intelligent prepayment system, the prepayment system includes at least two branch switches 1, an intelligent monitoring unit 2, an electric energy meter 3 equal to the number of branch switches 1, 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 Signal transmission is performed with the intelligent monitoring unit 2 respectively in a wireless manner. The system can realize functions such as remote prepayment, fee control closing and opening, line loss analysis, and power theft protection.
[0045] Specifically, please refer to figure 1 and figure 2 As shown, the branch switch 1 is arranged at the outlet terminal of the electric energy meter 3, and is electrically co...
no. 2 example
[0072] Such as Figure 9 As shown, it is a schematic diagram of the centralized control intelligent prepayment system in the second embodiment. In this embodiment, the energy meter 3 no longer establishes a wireless communication connection with the first communication unit 21 , and the communication of the energy meter 3 is changed to a broadband carrier (HPLC) method. The branch switch 1 or the electric energy meter 3 establishes the power carrier communication with the broadband carrier (HPLC) communication host 8 or TTU5 respectively. The broadband carrier wave (HPLC) communication host 8 in the station area 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 performs the corresponding fee control operation.
[0073] The difference from the first ...
no. 3 example
[0076] Such as Figure 10 As shown, it is a schematic diagram of the centralized control intelligent prepayment system in the third embodiment. In this embodiment, the electric energy meter 3 adopts 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 one master device and one or more slave devices, and requires at least four wires. When performing unidirectional transmission, three wires can also work.
[0077] Specifically, the electric energy meter 3 is connected to the first analysis and processing unit 22 by means of an SPI bus, and the electric energy meter 3 sends information such as fee control instructions to the first analysis and processing unit 22, and the first analysis and processing unit 22 controls the branch switch 1 to perform combination and separation. gate operation. At the same time, the first analy...
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