| 摘要 |
<p>A district heating system DHS comprises decentralised prepayment units PPU associated with respective decentralised heat consumption arrangements DHCA, the prepayment units PPU being communicatively coupled with a district heating backend system DHBS. The decentralised prepayment units PPU are arranged to transmit a top-up order TUO related to the respective decentral heat consumption arrangement DHCA, and the district heating backend system DHBS is arranged to enable and authorise a payment transaction request PTR in response to receiving the top-up order TUO from one of said decentralised prepayment units PPU. The payment transaction request PTR is based on a unique ID received from the decentralised prepayment unit PPU and payment authorisation data PAD. A payment transaction confirmation PTC is received in response to the payment transaction request PTR, and a client record CR associated with said unique ID is updated according to the received payment transaction confirmation PTC. The updated account data AD is transmitted to the decentralised the prepayment unit PPU identified by said unique ID.</p> |
