×

Communication system and communication method

  • US 9,886,400 B2
  • Filed: 07/31/2014
  • Issued: 02/06/2018
  • Est. Priority Date: 12/25/2013
  • Status: Active Grant
First Claim
Patent Images

1. A communication system comprising a host computer, control cabinets and peripheral devices, the control cabinets comprising serial ports used for communication among the peripheral devices and the host computer, wherein, when the communication system is in an operating phase, a system period of the communication system includes a polling phase and a free communication phase, in the polling phase the host computer sends query instructions to the control cabinets through the serial ports on each of the control cabinets, and in the free communication phase the control cabinets communicate with the corresponding peripheral devices through the serial ports,the host computer is provided with a high level timer, the control cabinets are provided with a low level timer, the host computer comprises a host computer processor configured to acquire data from the control cabinets, the control cabinets comprise a wireless transceiver and a control device configured to communicate with the peripheral devices via the wireless transceiver in the free communication phase,wherein the host computer is provided with a first arithmetic unit electrically connected to the host computer processor, the control cabinets are provided with a second arithmetic unit electrically connected to the control device, the first arithmetic unit is configured to calculate a first remainder obtained by dividing a clock value of the high level timer by the system period, the host computer processor determines whether the host computer is in the polling phase on the basis of the first remainder, the second arithmetic unit is configured to calculate a second remainder obtained by dividing a clock value of the low level timer by the system period, and the control device determines whether the control cabinets are in the free communication phase on the basis of the second remainder.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×